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3 results on '"Komi Research Center"'

1. Extreme biomimetics: Preservation of molecular detail in centimeter-scale samples of biological meshes laid down by sponges

Author

Friedrich Roth, Olga V. Petrova, Michael Kraft, David Rafaja, Heike Meissner, Teofil Jesioniowski, Marcin Wysokowski, Elke Niederschlag, Olena Volkova, Kurt Kummer, Roberta Galli, Martin Kopáni, Andrei Rogalev, Iaroslav Petrenko, Hermann Ehrlich, Mykhailo Motylenko, S. V. Nekipelov, Erica Brendler, Christian Schimpf, Martin Bertau, Paul Simon, Serguei L. Molodtsov, Sonia Żółtowska-Aksamitowska, Alexander V. Ereskovsky, V. N. Sivkov, Adam P. Summers, Oleg S. Pokrovsky, Yvonne Joseph, Technishe Universität Bergakademie Freiberg (TU Bergakademie Freiberg), University of Washington [Seattle], Max Planck Institute for Chemical Physics of Solids (CPfS), Max-Planck-Gesellschaft, Poznan University of Technology (PUT), European Synchrotron Radiation Facility (ESRF), Géosciences Environnement Toulouse (GET), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Tomsk State University [Tomsk], Technische Universität Dresden = Dresden University of Technology (TU Dresden), University Hospital Carl Gustav Carus [Dresden, Germany], European XFEL GmbH (XFEL), European XFEL GmbH, ITMO University [Russia], Institut méditerranéen de biodiversité et d'écologie marine et continentale (IMBE), Avignon Université (AU)-Aix Marseille Université (AMU)-Institut de recherche pour le développement [IRD] : UMR237-Centre National de la Recherche Scientifique (CNRS), Saint Petersburg State University (SPBU), Komi Research Center, Ural Branch of Russian Academy of Sciences (UB RAS), Syktyvkar State University, Syktywkar State University, Comenius University in Bratislava, Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD), and Centre National de la Recherche Scientifique (CNRS)-Institut de recherche pour le développement [IRD] : UMR237-Aix Marseille Université (AMU)-Avignon Université (AU)

Subjects
Materials science, Materials Science, Nanotechnology, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, Catalysis, Biomimetics, Graphite, Nanoscopic scale, Research Articles, Multidisciplinary, biology, Spongin, Tissue Scaffolds, [SDV.BBM.BS]Life Sciences [q-bio]/Biochemistry, Molecular Biology/Structural Biology [q-bio.BM], Nanoporous, Spectrum Analysis, SciAdv r-articles, [CHIM.MATE]Chemical Sciences/Material chemistry, 021001 nanoscience & nanotechnology, biology.organism_classification, Nanoscale Process, Carbon, 0104 chemical sciences, [SDV.BBM.BP]Life Sciences [q-bio]/Biochemistry, Molecular Biology/Biophysics, Sponge, Collagen, 0210 nano-technology, Hybrid material, Copper, Research Article
Abstract

We report a strategy for preserving the structural features of collagen triple helix in turbostratic graphite., Fabrication of biomimetic materials and scaffolds is usually a micro- or even nanoscale process; however, most testing and all manufacturing require larger-scale synthesis of nanoscale features. Here, we propose the utilization of naturally prefabricated three-dimensional (3D) spongin scaffolds that preserve molecular detail across centimeter-scale samples. The fine-scale structure of this collagenous resource is stable at temperatures of up to 1200°C and can produce up to 4 × 10–cm–large 3D microfibrous and nanoporous turbostratic graphite. Our findings highlight the fact that this turbostratic graphite is exceptional at preserving the nanostructural features typical for triple-helix collagen. The resulting carbon sponge resembles the shape and unique microarchitecture of the original spongin scaffold. Copper electroplating of the obtained composite leads to a hybrid material with excellent catalytic performance with respect to the reduction of p-nitrophenol in both freshwater and marine environments.

Published
2019

2. First report on chitinous holdfast in sponges (Porifera)

Author

Allison L. Stelling, Thomas Behm, Andre Ehrlich, René Born, Olga V. Petrova, Vasilii V. Bazhenov, Micha Ilan, Alexander V. Ereskovsky, Gert Wörheide, Oksana V. Kaluzhnaya, Roberta Galli, Sergei I. Belikov, Dorte Janussen, Hermann Ehrlich, Serguei V. Nekipelov, Konstantin R. Tabachnick, Denis V. Vyalikh, Lubov I. Chernogor, V N Sivkov, Mikhail V. Tsurkan, Technishe Universität Bergakademie Freiberg (TU Bergakademie Freiberg), Limnological Institute, Russian Academy of Sciences [Moscow] (RAS), Leibniz-Institut für Polymerforschung Dresden e.V. (IPF), Leibniz Association, Institut méditerranéen de biodiversité et d'écologie marine et continentale (IMBE), Avignon Université (AU)-Aix Marseille Université (AMU)-Institut de recherche pour le développement [IRD] : UMR237-Centre National de la Recherche Scientifique (CNRS), Tel Aviv University (TAU), Universitätsklinikum Carl Gustav Carus Dresden der TU Dresden, Komi Research Center, Ural Branch of Russian Academy of Sciences (UB RAS), Technische Universität Dresden = Dresden University of Technology (TU Dresden), Institute of Materials Science [Dresden], Sektion Marine Evertebraten I, Senckenberg Forschungsinstitut und Naturmuseum, Ludwig-Maximilians-Universität München (LMU), and Tel Aviv University [Tel Aviv]

Subjects
Spectrometry, Mass, Electrospray Ionization, Subject Areas, Molecular Sequence Data, Contrast Media, 02 engineering and technology, Biology, Spectrum Analysis, Raman, chitin, Polymerase Chain Reaction, Keywords, General Biochemistry, Genetics and Molecular Biology, Acetylglucosamine, Russia, 03 medical and health sciences, Botany, evolution, Animals, Subject areas, structural biology, biochemistry, Amino Acid Sequence, 14. Life underwater, Research Articles, Phylogeny, 030304 developmental biology, General Environmental Science, holdfast, Chitin Synthase, Holdfast, 0303 health sciences, General Immunology and Microbiology, endemic sponges, Benzenesulfonates, General Medicine, 021001 nanoscience & nanotechnology, Porifera, [SDV.BA.ZI]Life Sciences [q-bio]/Animal biology/Invertebrate Zoology, Lakes, X-Ray Absorption Spectroscopy, 0210 nano-technology, General Agricultural and Biological Sciences, Sequence Alignment
Abstract

A holdfast is a root- or basal plate-like structure of principal importance that anchors aquatic sessile organisms, including sponges, to hard substrates. There is to date little information about the nature and origin of sponges’ holdfasts in both marine and freshwater environments. This work, to our knowledge, demonstrates for the first time that chitin is an important structural component within holdfasts of the endemic freshwater demosponge Lubomirskia baicalensis . Using a variety of techniques (near-edge X-ray absorption fine structure, Raman, electrospray ionization mas spectrometry, Morgan–Elson assay and Calcofluor White staining), we show that chitin from the sponge holdfast is much closer to α-chitin than to β-chitin. Most of the three-dimensional fibrous skeleton of this sponge consists of spicule-containing proteinaceous spongin. Intriguingly, the chitinous holdfast is not spongin-based, and is ontogenetically the oldest part of the sponge body. Sequencing revealed the presence of four previously undescribed genes encoding chitin synthases in the L. baicalensis sponge. This discovery of chitin within freshwater sponge holdfasts highlights the novel and specific functions of this biopolymer within these ancient sessile invertebrates.

Published
2013

3. Identification and first insights into the structure and biosynthesis of chitin from the freshwater sponge Spongilla lacustris

Author

Eike Brunner, Vasilii V. Bazhenov, Olga V. Petrova, Konstantin R. Tabachnick, Victor V. Sivkov, Micha Ilan, Silvia Paasch, Denis V. Vyalikh, Gert Wörheide, Roberta Galli, Allison L. Stelling, S. Hunoldt, René Born, Martin Kammer, Oksana V. Kaluzhnaya, Alexander V. Ereskovsky, Sergei I. Belikov, Mikhail V. Tsurkan, Hermann Ehrlich, Institute of Experimental Physics [Freiberg], Technishe Universität Bergakademie Freiberg (TU Bergakademie Freiberg), Technische Universität Dresden = Dresden University of Technology (TU Dresden), Limnological Institute, Russian Academy of Sciences [Moscow] (RAS), Leibniz Institute of Polymer Research Dresden, Institut méditerranéen de biodiversité et d'écologie marine et continentale (IMBE), Avignon Université (AU)-Aix Marseille Université (AMU)-Institut de recherche pour le développement [IRD] : UMR237-Centre National de la Recherche Scientifique (CNRS), Tel Aviv University [Tel Aviv], P.P. Shirshov Institute of Oceanology (SIO), Institute of Materials Science [Dresden], Universitätsklinikum Carl Gustav Carus Dresden der TU Dresden, Komi Research Center, Ural Branch of Russian Academy of Sciences (UB RAS), Ludwig-Maximilians-Universität München (LMU), and Tel Aviv University (TAU)

Subjects
Spectrometry, Mass, Electrospray Ionization, [SDV]Life Sciences [q-bio], Amino Acid Motifs, Molecular Sequence Data, Chitin, 02 engineering and technology, Calcofluor-white, engineering.material, Acetylglucosamine, 03 medical and health sciences, chemistry.chemical_compound, Biosynthesis, Structural Biology, Spongilla lacustris, Botany, Spectroscopy, Fourier Transform Infrared, Animals, Amino Acid Sequence, Cloning, Molecular, Skeleton, 030304 developmental biology, 0303 health sciences, biology, Chitin synthase, Structural component, 021001 nanoscience & nanotechnology, biology.organism_classification, Porifera, Sponge, X-Ray Absorption Spectroscopy, chemistry, Sponges, engineering, biology.protein, Biopolymer, 0210 nano-technology, Bioanalytics
Abstract

International audience; This work demonstrates that chitin is an important structural component within the skeletal fibers of the freshwater sponge Spongilla lacustris. Using a variety of analytical techniques (13 C solid state NMR, FT-IR, Raman, NEXAFS, ESI-MS, Morgan-Elson assay and Calcofluor White Staining); we show that this sponge chitin is much closer to a-chitin, known to be present in other animals, than to b-chitin. Genetic analysis confirmed the presence of chitin synthases, which are described for the first time in a sponge. The presence of chitin in both marine (demosponges and hexactinellids) and freshwater sponges indicates that this important structural biopolymer was already present in their common ancestor.

Published
2013

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