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14 results on '"Nanomédecine, imagerie, thérapeutique - UFC (UR 4662) (NIT / NANOMEDECINE)"'

1. Ionic Conductance of Carbon Nanotubes: Confronting Literature Data with Nanofluidic Theory

Author

Vincent Jourdain, Fabien Picaud, Adrien Noury, John Palmeri, Manoel Manghi, Guillaume Herlem, François Henn, Physique Statistique des Systèmes Complexes (LPT) (PhyStat), Laboratoire de Physique Théorique (LPT), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Fédération de recherche « Matière et interactions » (FeRMI), Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Charles Coulomb (L2C), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Nanomédecine, imagerie, thérapeutique - UFC (UR 4662) (NIT / NANOMEDECINE), Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), ANR-18-CE09-0011,IONESCO,Couplage entre transports ionique et électronique dans les nanotubes de carbone mono-feuillets(2018), Institut de Recherche sur les Systèmes Atomiques et Moléculaires Complexes (IRSAMC), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut de Recherche sur les Systèmes Atomiques et Moléculaires Complexes (IRSAMC), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées, and Nanomédecine, imagerie, thérapeutique - UFC (EA 4662) (NIT / NANOMEDECINE)

Subjects
Nanotube, Materials science, Condensed matter physics, Field (physics), Charge density, Conductance, 02 engineering and technology, Carbon nanotube, Slip (materials science), 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 0104 chemical sciences, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, law.invention, General Energy, law, Ionic conductance, Physical and Theoretical Chemistry, [PHYS.COND]Physics [physics]/Condensed Matter [cond-mat], 0210 nano-technology, Communication channel
Abstract

International audience; The field of ion transport through carbon nanotubes (CNTs) is marked by a large variability of the ionic conductance values reported by different groups. There is also a large uncertainty concerning the relative contributions of channel and access resistances in the experimentally measured currents, both depending on experimental parameters (nanotube length and diameter). In this perspective article, we discuss the ionic conductance values reported so far in the case of 2 individual CNTs and compare them with standard nano-fluidic models considering both the access and channel resistances. With a view toward guiding experimentalists, we thus show in which conditions the access or the channel resistance can predominate in CNTs. We explain in particular that it is not justified to use phenomenological models neglecting the channel resistance in the case of micrometer-long CNTs. This comparison reveals that most experimental conductance values can be explained in the framework of current nanofluidic models by considering experimental variations of slip length and surface charge density and that just a few extraordinarily high values cannot be accounted for even using extreme parameter values. Finally, we discuss how to complete existing models and how to improve the statistical reliability of experimental data in the field.

Published
2021

2. Grafting TRAIL through Either Amino or Carboxylic Groups onto Maghemite Nanoparticles: Influence on Pro-Apoptotic Efficiency

Author

Hanene Belkahla, Tijani Gharbi, Philippe Decorse, Andrei Alexandru Constantinescu, Miryana Hémadi, Olivier Micheau, Souad Ammar, Florent Barbault, Alexandre Chevillot-Biraud, Lipides - Nutrition - Cancer [Dijon - U1231] (LNC), Université de Bourgogne (UB)-Institut National de la Santé et de la Recherche Médicale (INSERM)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Interfaces, Traitements, Organisation et Dynamique des Systèmes (ITODYS (UMR_7086)), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Nanomédecine, imagerie, thérapeutique - UFC (UR 4662) (NIT / NANOMEDECINE), Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), Micheau, Olivier, Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), and Nanomédecine, imagerie, thérapeutique - UFC (EA 4662) (NIT / NANOMEDECINE)

Subjects
Molecular model, General Chemical Engineering, Carboxylic acid, medicine.medical_treatment, 02 engineering and technology, Article, lcsh:Chemistry, 03 medical and health sciences, medicine, [SDV.BBM] Life Sciences [q-bio]/Biochemistry, Molecular Biology, General Materials Science, [SDV.BBM]Life Sciences [q-bio]/Biochemistry, Molecular Biology, Viability assay, cancer disease, cell viability, 030304 developmental biology, surface functionalization, chemistry.chemical_classification, 0303 health sciences, Chemistry, molecular modeling, technology, industry, and agriculture, 021001 nanoscience & nanotechnology, Ligand (biochemistry), 3. Good health, maghemite, Cytokine, lcsh:QD1-999, Biochemistry, Apoptosis, Cell culture, Tumor necrosis factor alpha, 0210 nano-technology
Abstract

International audience; Tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL) is a member of the TNF cytokine superfamily. TRAIL is able to induce apoptosis through engagement of its death receptors DR4 and DR5 in a wide variety of tumor cells while sparing vital normal cells. This makes it a promising agent for cancer therapy. Here, we present two different ways of covalently grafting TRAIL onto maghemite nanoparticles (NPs): (a) by using carboxylic acid groups of the protein to graft it onto maghemite NPs previously functionalized with amino groups, and (b) by using the amino functions of the protein to graft it onto NPs functionalized with carboxylic acid groups. The two resulting nanovectors, NH-TRAIL@NPs-CO and CO-TRAIL@NPs-NH, were thoroughly characterized. Biological studies performed on human breast and lung carcinoma cells (MDA-MB-231 and H1703 cell lines) established these nanovectors are potential agents for cancer therapy. The pro-apoptotic effect is somewhat greater for CO-TRAIL@NPs-NH than NH-TRAIL@NPs-CO, as evidenced by viability studies and apoptosis analysis. A computational study indicated that regardless of whether TRAIL is attached to NPs through an acid or an amino group, DR4 recognition is not affected in either case.

Published
2021

3. Applications of Human Amniotic Membrane for Tissue Engineering

Author

Frederic Auber, Laurent Obert, Aurélien Louvrier, Jean-Christophe Fricain, Florelle Gindraux, C. Meyer, Mathilde Fenelon, Sylvain Catros, Admin, Oskar, Bioingénierie tissulaire (BIOTIS), Université de Bordeaux (UB)-Institut National de la Santé et de la Recherche Médicale (INSERM), CHU Bordeaux [Bordeaux], Centre Hospitalier Régional Universitaire de Besançon (CHRU Besançon), Nanomédecine, imagerie, thérapeutique - UFC (UR 4662) (NIT / NANOMEDECINE), Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), Centre d'Investigation Clinique de Besançon (Inserm CIC 1431), Centre Hospitalier Régional Universitaire de Besançon (CHRU Besançon)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Etablissement français du sang [Bourgogne-Franche-Comté] (EFS [Bourgogne-Franche-Comté])-Université de Franche-Comté (UFC), Interactions hôte-greffon-tumeur, ingénierie cellulaire et génique - UFC (UMR INSERM 1098) (RIGHT), Institut National de la Santé et de la Recherche Médicale (INSERM)-Etablissement français du sang [Bourgogne-Franche-Comté] (EFS [Bourgogne-Franche-Comté])-Université de Franche-Comté (UFC), Laboratoire d'Excellence : Lipoprotéines et Santé : prévention et Traitement des maladies Inflammatoires et du Cancer (LabEx LipSTIC), École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut Gustave Roussy (IGR)-Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy)-Centre Hospitalier Régional Universitaire de Besançon (CHRU Besançon)-Université de Bourgogne (UB)-Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand (CHU Dijon)-Centre Régional de Lutte contre le cancer Georges-François Leclerc [Dijon] (UNICANCER/CRLCC-CGFL), UNICANCER-UNICANCER-Institut National de la Santé et de la Recherche Médicale (INSERM)-Fédération Francophone de la Cancérologie Digestive, FFCD-Université de Montpellier (UM)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Etablissement français du sang [Bourgogne-Franche-Comté] (EFS [Bourgogne-Franche-Comté])-Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Nanomédecine, imagerie, thérapeutique - UFC (EA 4662) (NIT / NANOMEDECINE), and Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre Hospitalier Régional Universitaire de Besançon (CHRU Besançon)-Etablissement français du sang [Bourgogne-Franche-Comté] (EFS [Bourgogne-Franche-Comté])

Subjects
Scaffold, reconstruction, [SDV.BIO]Life Sciences [q-bio]/Biotechnology, Biocompatibility, Filtration and Separation, 02 engineering and technology, TP1-1185, Review, Matrix (biology), 03 medical and health sciences, Chemical engineering, Tissue engineering, Chemical Engineering (miscellaneous), Cell adhesion, 030304 developmental biology, 0303 health sciences, amniotic membrane, Chemistry, Cell growth, Process Chemistry and Technology, Chemical technology, Biomaterial, biological scaffold, 021001 nanoscience & nanotechnology, [SDV.BIO] Life Sciences [q-bio]/Biotechnology, tissue engineering, repair, cells, TP155-156, Stem cell, 0210 nano-technology, Biomedical engineering
Abstract

International audience; An important component of tissue engineering (TE) is the supporting matrix upon which cells and tissues grow, also known as the scaffold. Scaffolds must easily integrate with host tissue and provide an excellent environment for cell growth and differentiation. Human amniotic membrane (hAM) is considered as a surgical waste without ethical issue, so it is a highly abundant, cost-effective, and readily available biomaterial. It has biocompatibility, low immunogenicity, adequate mechanical properties (permeability, stability, elasticity, flexibility, resorbability), and good cell adhesion. It exerts anti-inflammatory, antifibrotic, and antimutagenic properties and pain-relieving effects. It is also a source of growth factors, cytokines, and hAM cells with stem cell properties. This important source for scaffolding material has been widely studied and used in various areas of tissue repair: corneal repair, chronic wound treatment, genital reconstruction, tendon repair, microvascular reconstruction, nerve repair, and intraoral reconstruction. Depending on the targeted application, hAM has been used as a simple scaffold or seeded with various types of cells that are able to grow and differentiate. Thus, this natural biomaterial offers a wide range of applications in TE applications. Here, we review hAM properties as a biocompatible and degradable scaffold. Its use strategies (i.e., alone or combined with cells, cell seeding) and its degradation rate are also presented.

Published
2021

4. Comparison of the impact of preservation methods on amniotic membrane properties for tissue engineering applications

Author

Samantha Delmond, Florelle Gindraux, Robin Siadous, Sylvain Catros, Jean-Christophe Fricain, Stéphanie Brun, Mathilde Fenelon, Agathe Grémare, Delphine B. Maurel, Nicolas L'Heureux, Marlène Durand, Bioingénierie tissulaire (BIOTIS), Université de Bordeaux (UB)-Institut National de la Santé et de la Recherche Médicale (INSERM), Université de Bordeaux (UB), Plateforme Technologique d'Innovation Biomédicale (PTIB), Université de Bordeaux (UB)-Hôpital Xavier Arnozan, CHU Bordeaux [Bordeaux], Ecole Dentaire, Université Bordeaux Segalen - Bordeaux 2, Nanomédecine, imagerie, thérapeutique - UFC (EA 4662) (NIT / NANOMEDECINE), Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), Nanomédecine, imagerie, thérapeutique - UFC (UR 4662) (NIT / NANOMEDECINE), and CCSD, Accord Elsevier

Subjects
Materials science, Biocompatibility, [SDV]Life Sciences [q-bio], Amniotic membrane, Biocompatible Materials, Bioengineering, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, in vivo biocompatibility, Cryopreservation, Biomaterials, Freeze-drying, Subcutaneous Tissue, Implants, Experimental, Tissue engineering, immune system diseases, hemic and lymphatic diseases, mental disorders, Animals, Humans, Amnion, Rats, Wistar, Inflammation, Decellularization, Cell Death, Tissue Engineering, Mesenchymal stem cell, food and beverages, virus diseases, DNA, 021001 nanoscience & nanotechnology, Extracellular Matrix, 0104 chemical sciences, Staining, [SDV] Life Sciences [q-bio], Acellular scaffold, Membrane, Mechanics of Materials, Rat, Female, Processed amnion, 0210 nano-technology, Biomedical engineering
Abstract

International audience; Human amniotic membrane (hAM) is considered as an attractive biological scaffold for tissue engineering. For this application, hAM has been mainly processed using cryopreservation, lyophilization and/or decellularization. However, no study has formally compared the influence of these treatments on hAM properties. The aim of this study was to develop a new decellularization-preservation process of hAM, and to compare it with other conventional treatments (fresh, cryopreserved and lyophilized). The hAM was decellularized (D-hAM) using an enzymatic method followed by a detergent decellularization method, and was then lyophilized and gamma-sterilized. Decellularization was assessed using DNA staining and quantification. D-hAM was compared to fresh (F-hAM), cryopreserved (C-hAM) and lyophilized/gamma-sterilized (L-hAM) hAM. Their cytotoxicity on human bone marrow mesenchymal stem cells (hBMSCs) and their biocompatibility in a rat subcutaneous model were also evaluated. The protocol was effective as judged by the absence of nuclei staining and the residual DNA lower than 50 ng/mg. Histological staining showed a disruption of the D-hAM architecture, and its thickness was 84% lower than fresh hAM (p < 0.001). Despite this, the labeling of type IV and type V collagen, elastin and laminin were preserved on D-hAM. Maximal force before rupture of D-hAM was 92% higher than C-hAM and L-hAM (p < 0.01), and D-hAM was 37% more stretchable than F-hAM (p < 0.05). None of the four hAM were cytotoxic, and D-hAM was the most suitable scaffold for hBMSCs proliferation. Finally, D-hAM was well integrated in vivo. In conclusion, this new hAM decellularization process appears promising for tissue engineering applications.

Published
2019

5. TRAIL acts synergistically with iron oxide nanocluster-mediated magneto- and photothermia

Author

Eva Mazarío, Miryana Hémadi, Anouchka Plan Sangnier, Olivier Micheau, Souad Ammar, Tijani Gharbi, Claire Wilhelm, Hanene Belkahla, John S. Lomas, Interfaces, Traitements, Organisation et Dynamique des Systèmes (ITODYS (UMR_7086)), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Nanomédecine, imagerie, thérapeutique - UFC (UR 4662) (NIT / NANOMEDECINE), Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), Lipides - Nutrition - Cancer [Dijon - U1231] (LNC), Université de Bourgogne (UB)-Institut National de la Santé et de la Recherche Médicale (INSERM)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Matière et Systèmes Complexes (MSC (UMR_7057)), Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Micheau, Olivier, CNRS UMR 7057 - Laboratoire Matières et Systèmes Complexes (MSC) (MSC), Centre National de la Recherche Scientifique (CNRS), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Nanomédecine, imagerie, thérapeutique - UFC (EA 4662) (NIT / NANOMEDECINE), and Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP)

Subjects
photothermal therapy, Cell Survival, Medicine (miscellaneous), TRAIL, 02 engineering and technology, Ferric Compounds, Flow cytometry, TNF-Related Apoptosis-Inducing Ligand, Cell membrane, 03 medical and health sciences, 0302 clinical medicine, Microscopy, Electron, Transmission, Cell surface receptor, Cell Line, Tumor, medicine, [SDV.BBM] Life Sciences [q-bio]/Biochemistry, Molecular Biology, Humans, [SDV.BBM]Life Sciences [q-bio]/Biochemistry, Molecular Biology, magnetic hyperthermia, Receptor, Pharmacology, Toxicology and Pharmaceutics (miscellaneous), ComputingMilieux_MISCELLANEOUS, chemistry.chemical_classification, Cell Death, medicine.diagnostic_test, Tumor Necrosis Factor-alpha, iron oxide nanoclusters, apoptosis, Hyperthermia, Induced, Flow Cytometry, 021001 nanoscience & nanotechnology, 3. Good health, Magnetic hyperthermia, medicine.anatomical_structure, chemistry, Transferrin, Apoptosis, 030220 oncology & carcinogenesis, Cancer research, [SDV.IB]Life Sciences [q-bio]/Bioengineering, Tumor necrosis factor alpha, 0210 nano-technology, Research Paper
Abstract

International audience; Targeting TRAIL (Tumor necrosis factor (TNF)-Related Apoptosis-Inducing Ligand) receptors for cancer therapy remains challenging due to tumor cell resistance and poor preparations of TRAIL or its derivatives. Herein, to optimize its therapeutic use, TRAIL was grafted onto iron oxide nanoclusters (NCs) with the aim of increasing its pro-apoptotic potential through nanoparticle-mediated magnetic hyperthermia (MHT) or photothermia (PT). Methods: The nanovector, NC@TRAIL, was characterized in terms of size, grafting efficiency, and potential for MHT and PT. The therapeutic function was assessed on a TRAIL-resistant breast cancer cell line, MDA-MB-231, wild type (WT) or TRAIL-receptor-deficient (DKO), by combining complementary methylene blue assay and flow cytometry detection of apoptosis and necrosis. Results: Combined with MHT or PT under conditions of "moderate hyperthermia" at low concentrations, NC@TRAIL acts synergistically with the TRAIL receptor to increase the cell death rate beyond what can be explained by the mere global elevation of temperature. In contrast, all results are consistent with the idea that there are hotspots, close to the nanovector and, therefore, to the membrane receptor, which cause disruption of the cell membrane. Furthermore, nanovectors targeting other membrane receptors, unrelated to the TNF superfamily, were also found to cause tumor cell damage upon PT. Indeed, functionalization of NCs by transferrin (NC@Tf) or human serum albumin (NC@HSA) induces tumor cell killing when combined with PT, albeit less efficiently than NC@TRAIL. Conclusions: Given that magnetic nanoparticles can easily be functionalized with molecules or proteins recognizing membrane receptors, these results should pave the way to original remote-controlled antitumoral targeted thermal therapies.

Published
2019

6. Reduced graphene oxide/polyethylenimine based immunosensor for the selective and sensitive electrochemical detection of uropathogenic Escherichia coli

Author

Karima Kahlouche, Roxana Jijie, Rabah Boukherroub, Sabine Szunerits, Julie Bouckaert, Alexandre Barras, Tijani Gharbi, Nao Yamakawa, Institut Catholique Lille, Université de Lille, ISEN, Univ. Valenciennes, CNRS, Centrale Lille, Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN], Unité de Glycobiologie Structurale et Fonctionnelle UMR 8576 [UGSF], Nanomédecine, imagerie, thérapeutique - UFC (UR 4662) [NIT / NANOMEDECINE], Institut d’Électronique, de Microélectronique et de Nanotechnologie (IEMN) - UMR 8520 (IEMN), Centre National de la Recherche Scientifique (CNRS)-Université de Lille-Université Polytechnique Hauts-de-France (UPHF)-Ecole Centrale de Lille-Université Polytechnique Hauts-de-France (UPHF)-Institut supérieur de l'électronique et du numérique (ISEN), Unité de Glycobiologie Structurale et Fonctionnelle - UMR 8576 (UGSF), Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Recherche Agronomique (INRA), Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174) (FEMTO-ST), Université de Franche-Comté (UFC)-Centre National de la Recherche Scientifique (CNRS)-Ecole Nationale Supérieure de Mécanique et des Microtechniques (ENSMM)-Université de Technologie de Belfort-Montbeliard (UTBM), European Project: 690836,H2020,H2020-MSCA-RISE-2015,PANG(2016), Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 (IEMN), Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF), NanoBioInterfaces - IEMN (NBI - IEMN), Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF)-Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF), Unité de Glycobiologie Structurale et Fonctionnelle UMR 8576 (UGSF), Institut National de la Recherche Agronomique (INRA)-Université de Lille-Centre National de la Recherche Scientifique (CNRS), Université de Technologie de Belfort-Montbeliard (UTBM)-Ecole Nationale Supérieure de Mécanique et des Microtechniques (ENSMM)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC)-Centre National de la Recherche Scientifique (CNRS), Université de Lille-Centre National de la Recherche Scientifique (CNRS), Université de Technologie de Belfort-Montbeliard (UTBM)-Ecole Nationale Supérieure de Mécanique et des Microtechniques (ENSMM)-Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), and Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC)

Subjects
Electrophoretic deposition, Reduced graphene oxide, Polyethyleneimine, Anti- fimbrial E. coli antibodies, E. coli UTI89 bacteria, Electrochemical sensing, 02 engineering and technology, medicine.disease_cause, 01 natural sciences, law.invention, chemistry.chemical_compound, law, [CHIM.ANAL]Chemical Sciences/Analytical chemistry, [SDV.MHEP.MI]Life Sciences [q-bio]/Human health and pathology/Infectious diseases, Materials Chemistry, medicine, Electrical and Electronic Engineering, Instrumentation, Escherichia coli, ComputingMilieux_MISCELLANEOUS, Detection limit, Polyethylenimine, Aqueous solution, Chemistry, Potassium ferrocyanide, Graphene, 010401 analytical chemistry, Metals and Alloys, [CHIM.MATE]Chemical Sciences/Material chemistry, 021001 nanoscience & nanotechnology, Condensed Matter Physics, Combinatorial chemistry, [SDV.MP.BAC]Life Sciences [q-bio]/Microbiology and Parasitology/Bacteriology, 0104 chemical sciences, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, [SDV.MP]Life Sciences [q-bio]/Microbiology and Parasitology, Covalent bond, Surface modification, 0210 nano-technology
Abstract

Fast, reliable and selective detection of microorganisms is of uttermost importance in clinical analysis, but also in food and water quality monitoring. In this study, we report on the construction of an immunosensor for sensitive and selective electrochemical detection of uropathogenic Escherichia coli (E. coli) UTI89 bacteria in aqueous and serum samples. We took benefit of electrophoretic deposition (EPD) to prepare, in a simple, controllable and cost effective way, gold electrodes modified with thin active layers of reduced graphene oxide/polyethylenimine (rGO/PEI). While rGO exhibits high surface area and favourable electrochemical properties, the presence of abundant single bondNH2 groups on PEI offers a plethora of opportunities for the sensor’s surface functionalization. To achieve selectivity of detection, the electrode surface was covalently modified with anti-fimbrial E. coli antibodies via amide bond formation. To minimize non-specific adsorption, the immunosensor was additionally modified with pyrene-polyethyleneglycol (pyrene-PEG) moieties prior to antibody immobilization. The detection of E. coli was based on the restriction of electron transfer of a redox mediator, in our case potassium ferrocyanide, to the rGO/PEI modified electrical transducer due to the formation of an immune complex. The developed immunosensor displayed a sigmoidal shape with a linear range of 1 × 101–1 × 104 cfu mL−1 (R2 = 0.995) according to i(μA) = −16.66–20.5 × log[E. coli] (cfu mL−1) and a detection limit of 10 cfu mL−1. Additionally, the sensor performed well both in aqueous, serum and urine media, which is essential for its potential use for clinical diagnosis of pathogenic diseases. Selectivity studies showed that the immunosensor was able to discriminate between E. coli UTI89 wild-type strain and UTI89 Δfim, without fim operon. 260

Published
2018

7. Improved photodynamic effect through encapsulation of two photosensitizers in lipid nanocapsules

Author

Nadia Skandrani, Solomiya Paryzhak, Gabriel Bidaux, Tijani Gharbi, Sabine Szunerits, Mariano Gonzalez Pisfil, Laurent Héliot, Alexandre Barras, V’yacheslav Lehen’kyi, Rabah Boukherroub, Rostyslav Bilyy, Aurélien Haustrate, Hatem Boulahdour, Tetiana Dumych, Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 (IEMN), Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF), NanoBioInterfaces - IEMN (NBI - IEMN), Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF)-Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF), Nanomédecine, imagerie, thérapeutique - UFC (EA 4662) (NIT / NANOMEDECINE), Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 (PhLAM), Université de Lille-Centre National de la Recherche Scientifique (CNRS), Danylo Halytskiy Lviv National Medical University, Laboratoire de Physiologie Cellulaire : Canaux ioniques, inflammation et cancer - U 1003 (PHYCELL), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lille, Centre Hospitalier Régional Universitaire de Besançon (CHRU Besançon), Centre National de la Recherche Scientifique (CNRS), Universite de Lille, Hauts-de-France region, CPER for Society, Institut National du Cancer (INCa), EUH2020-MSCE-RISE-2015 690836 PANG, European Project: 690836,H2020,H2020-MSCA-RISE-2015,PANG(2016), Nanomédecine, imagerie, thérapeutique - UFC (UR 4662) (NIT / NANOMEDECINE), BARRAS, ALEXANDRE, Pathogen and Graphene - PANG - - H20202016-01-01 - 2019-12-31 - 690836 - VALID, NanoBioInterfaces - IEMN [NBI - IEMN], Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN], Laboratoire de Physiologie Cellulaire : Canaux ioniques, inflammation et cancer - U 1003 [PHYCELL], and Université Lille Nord de France (COMUE)

Subjects
Biodistribution, medicine.medical_treatment, [CHIM.THER] Chemical Sciences/Medicinal Chemistry, Biomedical Engineering, Photodynamic therapy, 02 engineering and technology, [CHIM.THER]Chemical Sciences/Medicinal Chemistry, [SDV.BC]Life Sciences [q-bio]/Cellular Biology, 01 natural sciences, HeLa, chemistry.chemical_compound, medicine, Photosensitizer, General Materials Science, [SDV.BC] Life Sciences [q-bio]/Cellular Biology, chemistry.chemical_classification, Reactive oxygen species, Protoporphyrin IX, biology, 010405 organic chemistry, General Chemistry, General Medicine, [SDV.SP]Life Sciences [q-bio]/Pharmaceutical sciences, 021001 nanoscience & nanotechnology, biology.organism_classification, 3. Good health, 0104 chemical sciences, Hypericin, [SDV.SP] Life Sciences [q-bio]/Pharmaceutical sciences, chemistry, Biophysics, 0210 nano-technology, Phototoxicity
Abstract

International audience; Photodynamic therapy (PDT) has developed into a new clinical and non-invasive treatment for cancer over the past 30 years. By the combination of three non-toxic partners, i.e. a photosensitizer (PS), molecular oxygen (O2) and light, cytotoxic reactive oxygen species (ROS) are locally produced leading to irreversible vascular and cellular damage. In the present study, we report for the first time that the combination of two photosensitizers (2 PSs: Protoporphyrin IX, PpIX and Hypericin, Hy) loaded in the same lipid nanocapsules (LNCs) leads to enhanced photodynamic therapy efficiency when compared with previously reported systems. The 2 PS-loaded LNCs are shown to increase the in vitro phototoxicity at the nanomolar range (IC50 = 274 and 278 nM on HeLa and MDA-MB-231 cell lines, respectively), whereas the corresponding single PS-loaded LNCs at the same concentration exhibit a phototoxicity two times lower. Intracellular localization in HeLa cells indicates a subcellular asymmetry of PpIX and Hy, in the plasma, ER membranes and round internal structures. The biodistribution of LNCs was studied upon different routes of injection into Swiss nude mice; based on the obtained data, LNCs were injected intratumorally and used to slow the growth of xenograft tumors in mice. The results obtained in this study suggest that the combination of two or more PSs may be a promising strategy to improve the efficacy of conventional photodynamic therapy as well as to reduce dark toxicity.

Published
2018

8. Controlled modification of electrochemical microsystems with polyethylenimine/reduced graphene oxide using electrophoretic deposition: Sensing of dopamine levels in meat samples

Author

Rabah Boukherroub, Reda Yahiaoui, Alexandre Barras, Karima Kahlouche, Ioana Silvia Hosu, Guillaume Herlem, Tijani Gharbi, Marhoun Ferhat, Roxana Jijie, Sabine Szunerits, Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 (IEMN), Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF), NanoBioInterfaces - IEMN (NBI - IEMN), Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF)-Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF), Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174) (FEMTO-ST), Université de Technologie de Belfort-Montbeliard (UTBM)-Ecole Nationale Supérieure de Mécanique et des Microtechniques (ENSMM)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC)-Centre National de la Recherche Scientifique (CNRS), Nanomédecine, imagerie, thérapeutique - UFC (EA 4662) (NIT / NANOMEDECINE), Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), Université Amar Telidji - Laghouat, Université de Technologie de Belfort-Montbeliard (UTBM)-Ecole Nationale Supérieure de Mécanique et des Microtechniques (ENSMM)-Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), and Nanomédecine, imagerie, thérapeutique - UFC (UR 4662) (NIT / NANOMEDECINE)

Subjects
Electrophoresis, Working electrode, Meat, Dopamine, Nanotechnology, 02 engineering and technology, Polyethylenimine, 01 natural sciences, Reference electrode, Analytical Chemistry, law.invention, [SPI.MAT]Engineering Sciences [physics]/Materials, chemistry.chemical_compound, Electrophoretic deposition, Electrochemical microsystem, law, Limit of Detection, Microsystem, Electrochemistry, Polyethyleneimine, Reduced graphene oxide, [SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics, Electrodes, [SPI.ACOU]Engineering Sciences [physics]/Acoustics [physics.class-ph], Graphene, 010401 analytical chemistry, Oxides, 021001 nanoscience & nanotechnology, 0104 chemical sciences, Microelectrode, chemistry, Sensing, Surface modification, Graphite, 0210 nano-technology, Oxidation-Reduction
Abstract

International audience; Microsystems play an important role in many biological and environmental applications. The integration of electrical interfaces into such miniaturized systems provides new opportunities for electrochemical sensing where high sensitivity and selectivity towards the analyte are requested. This can be only achieved upon controlled functionalization of the working electrode, a challenge for compact microsystems. In this work, we demonstrate the benefit of electrophoretic deposition (EPD) of reduced graphene oxide/polyethylenimine (rGO/ PEI) for the selective modification of a gold (Au) microelectrode in a microsystem comprising a Pt counter and a Ag/AgCl reference electrode. The functionalized microsystem was successfully applied for the sensing of dopamine with a detection limit of 50 nM. Additionally, the microsystem exhibited good performance for the detection of dopamine levels in meat samples.

Published
2017

9. Discrimination of Polynucleotide Transport through a Highly Hydrophobic Uncharged Nanopore

Author

Mikhael Bechelany, Jean-Marc Janot, Sebastien Balme, Tijani Gharbi, Guillaume Paris, Pierre-Eugène Coulon, Fabien Picaud, Mathilde Lepoitevin, Nanomédecine, imagerie, thérapeutique - UFC (EA 4662) (NIT / NANOMEDECINE), Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), Division of Geological and Planetary Sciences [Pasadena], California Institute of Technology (CALTECH), Institut Européen des membranes (IEM), Centre National de la Recherche Scientifique (CNRS)-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC)-Université de Montpellier (UM), Laboratoire des Solides Irradiés (LSI), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X), Nanomédecine, imagerie, thérapeutique - UFC (UR 4662) (NIT / NANOMEDECINE), Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Institut de Chimie du CNRS (INC)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Nanomédecine, imagerie, thérapeutique - UFC ( NIT / NANOMEDECINE ), Université Bourgogne Franche-Comté ( UBFC ) -Université de Franche-Comté ( UFC ), California Institute of Technology ( CALTECH ), Laboratoire d'optique, Centre National de la Recherche Scientifique ( CNRS ) -Université de Franche-Comté ( UFC ), Institut Européen des membranes ( IEM ), Centre National de la Recherche Scientifique ( CNRS ) -Ecole Nationale Supérieure de Chimie de Montpellier ( ENSCM ) -Université Montpellier 2 - Sciences et Techniques ( UM2 ) -Université de Montpellier ( UM ), Laboratoire des Solides Irradiés ( LSI - UMR 7642 ), and Commissariat à l'énergie atomique et aux énergies alternatives ( CEA ) -École polytechnique ( X ) -Université Paris-Saclay-Centre National de la Recherche Scientifique ( CNRS )

Subjects
Chromosomal translocation, Nanofluidics, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, [ CHIM ] Chemical Sciences, Molecular dynamics, chemistry.chemical_compound, [CHIM]Chemical Sciences, Physical and Theoretical Chemistry, Polyadenylic acid, ComputingMilieux_MISCELLANEOUS, 021001 nanoscience & nanotechnology, 3. Good health, 0104 chemical sciences, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, Folding (chemistry), Nanopore, Crystallography, General Energy, chemistry, Polynucleotide, Biophysics, 0210 nano-technology, DNA
Abstract

The importance of DNA structures in medicine has motivated researchers to develop sequencing methods with low costs and high speeds. The potential use of nanofluidics for the analysis of the translocation of polynucleotides through a nanopore is a very interesting solution. Herein, we demonstrate both by experiments and by explicit solvent molecular dynamics simulations that the translocation of polyadenylic acid and polycytidylic acid can significantly affect the ionic flux behavior. In particular, the nanochannel enhances the velocity difference between polynucleotides during the translocation process. Our results revealed the important role of the strand structures during their translocation, as already observed in biochannels. The folding/unfolding process leads to stronger interactions with the nanopore wall that decrease the velocity of the strands. This behavior could lead to the detection of different polynucleotides in a mixture.

Published
2017

10. TRAIL–NP hybrids for cancer therapy: a review

Author

Miryana Hémadi, Guillaume Herlem, Tijani Gharbi, Souad Ammar, Fabien Picaud, Olivier Micheau, H. Belkahla, Nanomédecine, imagerie, thérapeutique - UFC (EA 4662) (NIT / NANOMEDECINE), Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), Laboratoire des champs magnétiques intenses (LCMI-GHMFL), Centre National de la Recherche Scientifique (CNRS), Société Entomologique du Limousin (SEL), Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174) (FEMTO-ST), Université de Technologie de Belfort-Montbeliard (UTBM)-Ecole Nationale Supérieure de Mécanique et des Microtechniques (ENSMM)-Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Interfaces, Traitements, Organisation et Dynamique des Systèmes (ITODYS (UMR_7086)), Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), université de Bourgogne, LNC, Nanomédecine, imagerie, thérapeutique - UFC (UR 4662) (NIT / NANOMEDECINE), Université Paris Diderot - Paris 7 (UPD7)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Lipides - Nutrition - Cancer [Dijon - U1231] (LNC), Université de Bourgogne (UB)-Institut National de la Santé et de la Recherche Médicale (INSERM)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Laboratoire d'Excellence : Lipoprotéines et Santé : prévention et Traitement des maladies Inflammatoires et du Cancer (LabEx LipSTIC), Institut National de la Recherche Agronomique (INRA)-Université Montpellier 2 - Sciences et Techniques (UM2)-Université Paris-Sud - Paris 11 (UP11)-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut Gustave Roussy (IGR)-Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy)-Centre Hospitalier Régional Universitaire de Besançon (CHRU Besançon)-Université de Bourgogne (UB)-Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand (CHU Dijon)-Centre Régional de Lutte contre le cancer Georges-François Leclerc [Dijon] (UNICANCER/CRLCC-CGFL), UNICANCER-UNICANCER-Institut National de la Santé et de la Recherche Médicale (INSERM)-Fédération Francophone de la Cancérologie Digestive, FFCD-Université de Montpellier (UM)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Etablissement français du sang [Bourgogne-Franche-Comté] (EFS [Bourgogne-Franche-Comté])-Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Nanomédecine, imagerie, thérapeutique - UFC ( NIT / NANOMEDECINE ), Université Bourgogne Franche-Comté ( UBFC ) -Université de Franche-Comté ( UFC ), Laboratoire des champs magnétiques intenses ( LCMI-GHMFL ), Centre National de la Recherche Scientifique ( CNRS ), Société Entomologique du Limousin ( SEL ), Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies ( FEMTO-ST ), Université de Technologie de Belfort-Montbeliard ( UTBM ) -Ecole Nationale Supérieure de Mécanique et des Microtechniques ( ENSMM ) -Centre National de la Recherche Scientifique ( CNRS ) -Université de Franche-Comté ( UFC ), Interfaces, Traitements, Organisation et Dynamique des Systèmes ( ITODYS UMR7086 ), Université Paris Diderot - Paris 7 ( UPD7 ) -Centre National de la Recherche Scientifique ( CNRS ), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut Gustave Roussy (IGR)-Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy)-Université de Bourgogne (UB)-Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand (CHU Dijon)-Centre Régional de Lutte contre le cancer Georges-François Leclerc [Dijon] (UNICANCER/CRLCC-CGFL), UNICANCER-UNICANCER-Institut National de la Santé et de la Recherche Médicale (INSERM)-Fédération Francophone de la Cancérologie Digestive, FFCD-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Etablissement français du sang [Bourgogne-Franche-Comté] (EFS [Bourgogne-Franche-Comté])-Centre National de la Recherche Scientifique (CNRS)-Centre Hospitalier Régional Universitaire de Besançon (CHRU Besançon)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université de Montpellier (UM), Lipides - Nutrition - Cancer [Dijon - U1231] ( LNC ), Université de Bourgogne ( UB ) -AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Institut National de la Santé et de la Recherche Médicale ( INSERM ), Laboratoire d'Excellence : Lipoprotéines et Santé : prévention et Traitement des maladies Inflammatoires et du Cancer ( LabEx LipSTIC ), Institut National de la Recherche Agronomique ( INRA ) -Université Montpellier 2 - Sciences et Techniques ( UM2 ) -Université Paris-Sud - Paris 11 ( UP11 ) -École pratique des hautes études ( EPHE ) -Institut Gustave Roussy ( IGR ) -Centre Hospitalier Régional Universitaire de Nancy ( CHRU Nancy ) -Université de Bourgogne ( UB ) -Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand ( CHU Dijon ) -Centre Régional de Lutte contre le cancer - Centre Georges-François Leclerc ( CRLCC - CGFL ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Fédération Francophone de la Cancérologie Digestive, FFCD-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Etablissement français du sang [Bourgogne-France-Comté] ( EFS [Bourgogne-France-Comté] ) -Centre National de la Recherche Scientifique ( CNRS ) -Centre Hospitalier Régional Universitaire [Besançon] ( CHRU Besançon ) -Université de Franche-Comté ( UFC ), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université de Franche-Comté (UFC), Institut National de la Recherche Agronomique (INRA)-Université Montpellier 2 - Sciences et Techniques (UM2)-Université Paris-Sud - Paris 11 (UP11)-École pratique des hautes études (EPHE)-Institut Gustave Roussy (IGR)-Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy)-Université de Bourgogne (UB)-Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand (CHU Dijon)-Centre Régional de Lutte contre le cancer - Centre Georges-François Leclerc (CRLCC - CGFL)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Fédération Francophone de la Cancérologie Digestive, FFCD-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Etablissement français du sang [Bourgogne-France-Comté] (EFS [Bourgogne-France-Comté])-Centre National de la Recherche Scientifique (CNRS)-Centre Hospitalier Régional Universitaire [Besançon] (CHRU Besançon)-Université de Franche-Comté (UFC)-Université de Montpellier (UM), and Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Institut National de la Santé et de la Recherche Médicale (INSERM)

Subjects
0301 basic medicine, Agonist, medicine.drug_class, medicine.medical_treatment, Apoptosis, [SDV.CAN]Life Sciences [q-bio]/Cancer, 02 engineering and technology, Disease, CD8-Positive T-Lymphocytes, [ SDV.CAN ] Life Sciences [q-bio]/Cancer, TNF-Related Apoptosis-Inducing Ligand, 03 medical and health sciences, [SDV.CAN] Life Sciences [q-bio]/Cancer, Neoplasms, Humans, Medicine, General Materials Science, [SDV.BBM]Life Sciences [q-bio]/Biochemistry, Molecular Biology, Anti-cancer therapies, Receptor, [ SDV.BBM ] Life Sciences [q-bio]/Biochemistry, Molecular Biology, ComputingMilieux_MISCELLANEOUS, biology, business.industry, Cancer, 021001 nanoscience & nanotechnology, medicine.disease, 3. Good health, Killer Cells, Natural, Receptors, TNF-Related Apoptosis-Inducing Ligand, Antitumoral properties, 030104 developmental biology, Cytokine, Immunology, Cancer research, biology.protein, Nanoparticles, Tumor necrosis factor alpha, Antibody, 0210 nano-technology, business, CD8
Abstract

IF 7.367; International audience; Cancer is a worldwide health problem. It is now considered as a leading cause of morbidity and mortality in developed countries. In the last few decades, considerable progress has been made in anti-cancer therapies, allowing the cure of patients suffering from this disease, or at least helping to prolong their lives. Several cancers, such as those of the lung and pancreas, are still devastating in the absence of therapeutic options. In the early 90s, TRAIL (Tumor Necrosis Factor-related apoptosis-inducing ligand), a cytokine belonging to the TNF superfamily, attracted major interest in oncology owing to its selective anti-tumor properties. Clinical trials using soluble TRAIL or antibodies targeting the two main agonist receptors (TRAIL-R1 and TRAIL-R2) have, however, failed to demonstrate their efficacy in the clinic. TRAIL is expressed on the surface of natural killer or CD8+ T activated cells and contributes to tumor surveillance. Nanoparticles functionalized with TRAIL mimic membrane-TRAIL and exhibit stronger antitumoral properties than soluble TRAIL or TRAIL receptor agonist antibodies. This review provides an update on the association and the use of nanoparticles associated with TRAIL for cancer therapy.

Published
2017

11. Enhanced Ionic Transport Mechanism by Gramicidin A Confined Inside Nanopores Tuned by Atomic Layer Deposition

Author

Julien Cambedouzou, Mathilde Le Poitevin, Philippe Déjardin, Fabien Picaud, Mikhael Bechelany, Thierry Thami, Philippe Miele, Adib Abou Chaaya, Jean-Marc Janot, Simon Cabello-Aguilar, Emmanuel Balanzat, Sebastian Kraszewski, Sebastien Balme, Institut Européen des membranes (IEM), Centre National de la Recherche Scientifique (CNRS)-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC)-Université de Montpellier (UM), Centre de recherches internationales (CERI), Sciences Po (Sciences Po)-Centre National de la Recherche Scientifique (CNRS), Nanomédecine, imagerie, thérapeutique - UFC (EA 4662) (NIT / NANOMEDECINE), Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), Laboratoire des colloïdes, verres et nanomatériaux (LCVN), Université Montpellier 2 - Sciences et Techniques (UM2)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique des Solides (LPS), Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11), Centre de recherche sur les Ions, les MAtériaux et la Photonique (CIMAP - UMR 6252), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS), Université Montpellier 2 - Sciences et Techniques (UM2)-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Centre de recherches internationales (Sciences Po, CNRS) (CERI), Nanomédecine, imagerie, thérapeutique - UFC (UR 4662) (NIT / NANOMEDECINE), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS), Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche sur les Matériaux Avancés (IRMA), Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Rouen Normandie (UNIROUEN), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), Institut Européen des membranes ( IEM ), Centre National de la Recherche Scientifique ( CNRS ) -Ecole Nationale Supérieure de Chimie de Montpellier ( ENSCM ) -Université Montpellier 2 - Sciences et Techniques ( UM2 ) -Université de Montpellier ( UM ), Centre d'études et de recherches internationales ( CERI ), Sciences Po-Centre National de la Recherche Scientifique ( CNRS ), Nanomédecine, imagerie, thérapeutique - UFC ( NIT / NANOMEDECINE ), Université Bourgogne Franche-Comté ( UBFC ) -Université de Franche-Comté ( UFC ), Laboratoire des colloïdes, verres et nanomatériaux ( LCVN ), Université Montpellier 2 - Sciences et Techniques ( UM2 ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire de Physique des Solides ( LPS ), Université Paris-Sud - Paris 11 ( UP11 ) -Centre National de la Recherche Scientifique ( CNRS ), Centre de recherche sur les Ions, les MAtériaux et la Photonique ( CIMAP - UMR 6252 ), Université de Caen Normandie ( UNICAEN ), Normandie Université ( NU ) -Normandie Université ( NU ) -Ecole Nationale Supérieure d'Ingénieurs de Caen ( ENSICAEN ), Normandie Université ( NU ) -Commissariat à l'énergie atomique et aux énergies alternatives ( CEA ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire des Multimatériaux et Interfaces ( LMI ), Université Claude Bernard Lyon 1 ( UCBL ), and Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique ( CNRS )

Subjects
Materials science, Fabrication, [ PHYS.COND.CM-MS ] Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], Ionic bonding, Nanotechnology, 02 engineering and technology, Surface finish, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 0104 chemical sciences, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, Nanopore, Atomic layer deposition, General Energy, Membrane, Chemical engineering, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], Gramicidin A, Physical and Theoretical Chemistry, 0210 nano-technology, ComputingMilieux_MISCELLANEOUS, Ion transporter
Abstract

The confinement and the understanding of ion transport through ionic channels when they are confined inside solid-state nanopores smaller than 10 nm remains a challenge. Here we report on the fabrication of biomimetic nanopores with high length (5 μm)/diameter (smaller than 10 nm) ratio obtained using both a track-etched technique and atomic layer deposition on flexible membranes. These membranes present uniform hydrophobic nanopores with a low roughness inside the pores. Gramicidin A is then confined inside nanopores (diameter 10.6, 5.7, and ∼2 nm) leading to the NaCl ionic transport mechanism through a hybrid nanopore similar to the biological ones especially for small diameter (5.7 and ∼2 nm).

Published
2013

12. Confined Nystatin Polyenes in Nanopore Induce Biologic Ionic Selectivity

Author

Fabien Picaud, Guillaume Paris, Jean-Marc Janot, bastien Balme, Khaoula Boukari, Tijani Gharbi, Centre Interdisciplinaire de Nanoscience de Marseille ( CINaM ), Aix Marseille Université ( AMU ) -Centre National de la Recherche Scientifique ( CNRS ), Division of Geological and Planetary Sciences [Pasadena], California Institute of Technology ( CALTECH ), Nanomédecine, imagerie, thérapeutique - UFC ( NIT / NANOMEDECINE ), Université de Franche-Comté ( UFC ) -Université Bourgogne Franche-Comté ( UBFC ), Institut Européen des membranes ( IEM ), Centre National de la Recherche Scientifique ( CNRS ) -Ecole Nationale Supérieure de Chimie de Montpellier ( ENSCM ) -Université Montpellier 2 - Sciences et Techniques ( UM2 ) -Université de Montpellier ( UM ), Centre Interdisciplinaire de Nanoscience de Marseille (CINaM), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), California Institute of Technology (CALTECH), Nanomédecine, imagerie, thérapeutique - UFC (EA 4662) (NIT / NANOMEDECINE), Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), Institut Européen des membranes (IEM), Centre National de la Recherche Scientifique (CNRS)-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC)-Université de Montpellier (UM), ANR-12-BS08-0023,TRANSION,TRANSport IONique au sein de canaux-ioniques biologiques confinés dans des nanopores: approche expérimentale et théorique(2012), Nanomédecine, imagerie, thérapeutique - UFC (UR 4662) (NIT / NANOMEDECINE), and Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Institut de Chimie du CNRS (INC)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Article Subject, Ionic bonding, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, Divalent, Ion, Cell membrane, Molecular dynamics, lcsh:Technology (General), medicine, Organic chemistry, Molecule, General Materials Science, [PHYS]Physics [physics], chemistry.chemical_classification, [ PHYS ] Physics [physics], Chemistry, 021001 nanoscience & nanotechnology, 0104 chemical sciences, Nanopore, Membrane, medicine.anatomical_structure, Biophysics, lcsh:T1-995, 0210 nano-technology
Abstract

International audience; Antifungal polyenes such as nystatin (or amphotericin B) molecules play an important role in regulating ions permeability through membrane cell. The creation of self-assembled nanopores into the fungal lipid membranes permits the leakage and the selectivity of ions (i.e., blockage of divalent cations) that cause the cell death. These abilities are thus of first interest to promote new biomimetic membranes with improved ionic properties. In the present work, we will use molecular dynamic simulations to interpret recent experimental data that showed the transfer of the nystatin action inside artificial nanopore in terms of ion permeability and selectivity. We will demonstrate that nystatin polyenes can be stabilized in a hydrophobic carbon nanotube, even at high concentration. The high potential interaction between the polyenes and the hydrophobic pore wall ensures the apparition of a hole inside the biomimetic nanopore that changes its intrinsic properties. The probability ratios of cation versus anion show interesting reproducibility of experimental measurements and, to a certain extent, opened the way for transferring biological properties in synthetic membranes.

Published
2016

13. Nanovectorization of TRAIL with single wall carbon nanotubes enhances tumor cell killing

Author

Al Batoul, Zakaria, Fabien, Picaud, Thibault, Rattier, Marc, Pudlo, Florent, Dufour, Lucien, Saviot, Rémi, Chassagnon, Jeannine, Lherminier, Tijani, Gharbi, Olivier, Micheau, Guillaume, Herlem, Nanomédecine, imagerie, thérapeutique - UFC (EA 4662) (NIT / NANOMEDECINE), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université de Franche-Comté (UFC), Lipides - Nutrition - Cancer (U866) (LNC), Université de Bourgogne (UB)-Institut National de la Santé et de la Recherche Médicale (INSERM)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Ecole Nationale Supérieure de Biologie Appliquée à la Nutrition et à l'Alimentation de Dijon (ENSBANA), Laboratoire Interdisciplinaire Carnot de Bourgogne (LICB), Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS), Agroécologie [Dijon], Institut National de la Recherche Agronomique (INRA)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, ANR-11-LABX-0021-01-LipSTIC Labex, Conseil Regional de Bourgogne, ANR (SphingoDR), ANR (HSPathies), Université de Bourgogne, PRES Bourgogne Franche-Comté, CHU Jean Minjoz, Conseil Regional de Franche-Comte, ANR-13-BSV1-0029,HSPathies,Role de la proteine HSP70 dans la régulation normale et pathologique de l'érythropoièse(2013), ANR-10-BLAN-1241,SphingoDR,Sensibilisation de cellules cancéreuses résistantes aux ligands des récepteurs de mort par modulation des sphingolipides de la membrane plasmique.(2010), Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Bourgogne (UB)-Ecole Nationale Supérieure de Biologie Appliquée à la Nutrition et à l'Alimentation de Dijon (ENSBANA)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Nanomédecine, imagerie, thérapeutique - UFC ( NIT / NANOMEDECINE ), Université Bourgogne Franche-Comté ( UBFC ) -Université de Franche-Comté ( UFC ), Lipides - Nutrition - Cancer (U866) ( LNC ), Université de Bourgogne ( UB ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ) -AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Ecole Nationale Supérieure de Biologie Appliquée à la Nutrition et à l'Alimentation de Dijon ( ENSBANA ), Laboratoire Interdisciplinaire Carnot de Bourgogne ( LICB ), Université de Bourgogne ( UB ) -Centre National de la Recherche Scientifique ( CNRS ), Institut National de la Recherche Agronomique ( INRA ) -Université de Bourgogne ( UB ) -AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, ANR-13-BSV1-0029,HSPathies,Role de la proteine HSP70 dans la régulation normale et pathologique de l'érythropoièse ( 2013 ), ANR-10-BLAN-1241,SphingoDR,Sensibilisation de cellules cancéreuses résistantes aux ligands des récepteurs de mort par modulation des sphingolipides de la membrane plasmique. ( 2010 ), Nanomédecine, imagerie, thérapeutique - UFC (UR 4662) (NIT / NANOMEDECINE), Laboratoire Interdisciplinaire Carnot de Bourgogne (ICB), Micheau, Olivier, Blanc 2013 - Role de la proteine HSP70 dans la régulation normale et pathologique de l'érythropoièse - - HSPathies2013 - ANR-13-BSV1-0029 - Blanc 2013 - VALID, and BLANC - Sensibilisation de cellules cancéreuses résistantes aux ligands des récepteurs de mort par modulation des sphingolipides de la membrane plasmique. - - SphingoDR2010 - ANR-10-BLAN-1241 - BLANC - VALID

Subjects
Materials science, [SDV.BIO]Life Sciences [q-bio]/Biotechnology, Stereochemistry, Carbon nanotubes, Bioengineering, TRAIL, 02 engineering and technology, TNF-Related Apoptosis-Inducing Ligand, 03 medical and health sciences, Microscopy, Electron, Transmission, Cell Line, Tumor, Neoplasms, [SDV.BBM] Life Sciences [q-bio]/Biochemistry, Molecular Biology, Humans, [CHIM]Chemical Sciences, General Materials Science, [SDV.BBM]Life Sciences [q-bio]/Biochemistry, Molecular Biology, Receptor, [ SDV.BBM ] Life Sciences [q-bio]/Biochemistry, Molecular Biology, ComputingMilieux_MISCELLANEOUS, 030304 developmental biology, Receptor Aggregation, 0303 health sciences, Nanotubes, Carbon, Mechanical Engineering, nanovector, [ SDV.BIO ] Life Sciences [q-bio]/Biotechnology, General Chemistry, 021001 nanoscience & nanotechnology, Condensed Matter Physics, nanomedicine, Transmembrane protein, [SDV.BIO] Life Sciences [q-bio]/Biotechnology, Receptors, TNF-Related Apoptosis-Inducing Ligand, Cell culture, Apoptosis, Cancer cell, Cancer research, cancer therapy, death receptor, Tumor necrosis factor alpha, Nanocarriers, 0210 nano-technology
Abstract

International audience; Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL or Apo2L) is a member of the tumor necrosis factor (TNF) superfamily. This type II transmembrane protein is able to bound specifically to cancer cell receptors (i.e., TRAIL-R1 (or DR4) and TRAIL-R2 (or DR5)) and to induce apoptosis without being toxic for healthy cells. Because membrane-bound TRAIL induces stronger receptor aggregation and apoptosis than soluble TRAIL, we proposed here to vectorize TRAIL using single-walled carbon nanotubes (SWCNTs) to mimic membrane TRAIL. Owing to their exceptional and revolutional properties, carbon nanotubes, especially SWCNTs, are used in a wide range of physical or, now, medical applications. Indeed due to their high mechanical resistance, their high flexibility and their hydrophobicity, SWCNTs are known to rapidly diffuse in an aqueous medium such as blood, opening the way of development of new drug nanovectors (or nanocarriers). Our TRAIL-based SWCNTs nanovectors proved to be more efficient than TRAIL alone death receptors in triggering cancer cell killing. These NPTs increased TRAIL pro-apoptotic potential by nearly 20-fold in different Human tumor cell lines including colorectal, nonsmall cell lung cancer, or hepatocarcinomas. We provide thus a proof-of-concept that TRAIL nanovector derivatives based on SWCNT may be useful to future nanomedicine therapies.

Published
2015

14. Experimental and simulation studies of unusual current blockade induced by translocation of small oxidized PEG through a single nanopore

Author

Sebastian Kraszewski, Mikhael Bechelany, Fabrice Rossignol, Philippe Miele, Emmanuel Balanzat, Simon Cabello-Aguilar, Celine Pochat-Bohatier, Fabien Picaud, A. Abou Chaaya, Mirna Chaker Bechelany, Semen O. Yesylevskyy, Philippe Déjardin, Sebastien Balme, Jean-Marc Janot, Institut Européen des membranes ( IEM ), Centre National de la Recherche Scientifique ( CNRS ) -Ecole Nationale Supérieure de Chimie de Montpellier ( ENSCM ) -Université Montpellier 2 - Sciences et Techniques ( UM2 ) -Université de Montpellier ( UM ), Nanomédecine, imagerie, thérapeutique - UFC ( NIT / NANOMEDECINE ), Université Bourgogne Franche-Comté ( UBFC ) -Université de Franche-Comté ( UFC ), Axe 1 : procédés céramiques, Science des Procédés Céramiques et de Traitements de Surface ( SPCTS ), Université de Limoges ( UNILIM ) -Ecole Nationale Supérieure de Céramique Industrielle ( ENSCI ) -Institut des Procédés Appliqués aux Matériaux ( IPAM ), Université de Limoges ( UNILIM ) -Université de Limoges ( UNILIM ) -Institut de Chimie du CNRS ( INC ) -Centre National de la Recherche Scientifique ( CNRS ) -Université de Limoges ( UNILIM ) -Ecole Nationale Supérieure de Céramique Industrielle ( ENSCI ) -Institut des Procédés Appliqués aux Matériaux ( IPAM ), Université de Limoges ( UNILIM ) -Université de Limoges ( UNILIM ) -Institut de Chimie du CNRS ( INC ) -Centre National de la Recherche Scientifique ( CNRS ), Centre de recherche sur les Ions, les MAtériaux et la Photonique ( CIMAP - UMR 6252 ), Université de Caen Normandie ( UNICAEN ), Normandie Université ( NU ) -Normandie Université ( NU ) -Ecole Nationale Supérieure d'Ingénieurs de Caen ( ENSICAEN ), Normandie Université ( NU ) -Commissariat à l'énergie atomique et aux énergies alternatives ( CEA ) -Centre National de la Recherche Scientifique ( CNRS ), Institut Européen des membranes (IEM), Université Montpellier 2 - Sciences et Techniques (UM2)-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Nanomédecine, imagerie, thérapeutique - UFC (UR 4662) (NIT / NANOMEDECINE), Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), Science des Procédés Céramiques et de Traitements de Surface (SPCTS), Université de Limoges (UNILIM)-Ecole Nationale Supérieure de Céramique Industrielle (ENSCI)-Institut des Procédés Appliqués aux Matériaux (IPAM), Université de Limoges (UNILIM)-Université de Limoges (UNILIM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Limoges (UNILIM)-Ecole Nationale Supérieure de Céramique Industrielle (ENSCI)-Institut des Procédés Appliqués aux Matériaux (IPAM), Université de Limoges (UNILIM)-Université de Limoges (UNILIM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Centre de recherche sur les Ions, les MAtériaux et la Photonique (CIMAP - UMR 6252), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche sur les Matériaux Avancés (IRMA), Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Rouen Normandie (UNIROUEN), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC)-Université de Montpellier (UM), Nanomédecine, imagerie, thérapeutique - UFC (EA 4662) (NIT / NANOMEDECINE), Centre National de la Recherche Scientifique (CNRS)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Caen Normandie (UNICAEN), and Normandie Université (NU)

Subjects
Models, Molecular, Materials science, [ PHYS.COND.CM-MS ] Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], General Physics and Astronomy, Ionic bonding, Nanotechnology, 02 engineering and technology, Polyethylene glycol, 010402 general chemistry, 01 natural sciences, Polyethylene Glycols, Molecular dynamics, chemistry.chemical_compound, Nanopores, Electromagnetic Fields, PEG ratio, Materials Testing, Molecule, Computer Simulation, Physical and Theoretical Chemistry, ComputingMilieux_MISCELLANEOUS, Molar mass, technology, industry, and agriculture, Electric Conductivity, Permeation, 021001 nanoscience & nanotechnology, 0104 chemical sciences, Molecular Weight, Nanopore, chemistry, Models, Chemical, Chemical physics, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], 0210 nano-technology, Oxidation-Reduction
Abstract

Detection of a single macromolecule based on the use of artificial nanopores is an attractive and promising field of research. In this work, we report a device based on a 5 nm single nanopore with a high length/diameter ratio, tailored by the track etching and atomic layer deposition techniques. The translocation of neutral polyethylene glycol (PEG) and charged polyethylene glycol-carboxylate (PEG-carboxylate) molecules of low molar masses (200 and 600 g mol(-1)) through this nanodevice was studied. It was shown that charged PEG-carboxylate molecules, which permeate through the pore, promote an unusual blockade of ionic current whereas the neutral PEG molecules do not show such behaviour. The molecular dynamics simulation shows that both neutral and charged PEGs permeate through the nanopore close to its inner surface. The main difference between the two macromolecules is the existence of a structured shell of cations around the charged PEG, which is likely to cause the observed unusual current blockade.

Published
2014

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