2,356 results on '"nanotechnology"'
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2. Nanorobotics : current approaches and techniques.
- Author
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Ferreira, Antoine and Mavroidis, Constantinos
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Microrobots ,Nanotechnology ,Robotics - Abstract
Summary: Nanorobot devices now perform a wide variety of tasks at the nanoscale in a wide variety of fields including but not limited to fields such as manufacturing, medicine, supply chain, biology, and outer space. Nanorobotics: Current Approaches and Techniques is a comprehensive overview of this interdisciplinary field with a wide ranging discussion that includes nano-manipulation and industrial nanorobotics, nanorobotics in biology and medicine, nanorobotic sensing, navigation and swarm behavior, and protein and DNA-based nanorobotics. Also included is the latest on topics such as bio-nano-actuators and propulsion and navigation of nanorobotic systems using magnetic fields. Nanorobotics: Current Approaches and Techniques is an ideal book for scientists, researchers, and engineers actively involved in applied and robotic research and development.
- Published
- 2013
3. CHAPTER 9 Bijels the Easy Way
- Author
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Forth, Joe, Toor, Anju, Chai, Yu, Huang, Caili, Liu, Xubo, Feng, Wenqian, Shi, Shaowei, Wang, Dong, Ashby, Paul D, Helms, Brett A, and Russell, Thomas P
- Subjects
Information and Computing Sciences ,Engineering ,Nanotechnology - Abstract
Spinodal decomposition is not the only way to make a bijel. Indeed, while spinodal decomposition produces structures with a potentially useful morphology, it can be challenging to make bijels using this method and the resulting systems can be hard to process and manipulate. Furthermore, exploiting the functional properties of the assembled particle monolayer is extremely challenging. In this chapter, we show how the assembly of nanoparticle surfactants at the liquid–liquid interface can be used to kinetically trap liquids into a wealth of complex structures without using spinodal decomposition. We apply liquid three-dimensional printing and moulding methods, along with patterned substrates with controllable wetting properties, to build all-liquid devices with applications in chemical synthesis, separation, and purification. The functional properties of the assembled nanomaterials can be exploited to produce interfacially structured liquids that are plasmonically and magnetically responsive. Finally, we conclude by arguing that, while the field shows great promise, efforts need to be made to translate liquid bicontinuous systems out of the laboratory and into meaningful, real-world applications, as well applications in more ‘exotic’ disciplines, such as synthetic biology.
- Published
- 2020
4. Islamic Bioethics: Enhancement
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Noor, Siti Nurani Mohd.
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- 2023
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5. Digital Design and Innovation of Objects after COVID-19
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Yıldırım, Merve
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- 2021
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6. An Exploratory Study of the Role of Publishing Inventors in Nanotechnology
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Cattani, Gino and Daniele Rotolo and
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- 2014
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7. Great Expectations: Discourse and Affect During Field Emergence
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Grodal, Stine and Granqvist, Nina
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- 2014
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8. Temporal Myopia: A Case of Promising New Technologies, the Federal Government, and Inherent Conflicts of Interest
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Collins, Mary B. and Freudenburg, William R.
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- 2014
- Full Text
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9. The Visioneers: How a Group of Elite Scientists Pursued Space Colonies, Nanotechnologies, and a Limitless Future
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McCray, W. Patrick, author and McCray, W. Patrick
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- 2017
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10. Bioactive Molecules from Extreme Environments II.
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Giordano, Daniela and Giordano, Daniela
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Chemistry ,Research & information: general ,(DFT)-UV-Vis spectral calculation ,13C-NMR chemical shift linear and multiple regression ,3-amino-2-pyrrolidinone ,Antarctic bacteria ,Antarctica ,Antarctica sponge-derived fungus ,Arctic ,Arctic/Antarctic ,Aspergillus insulicola ,Bacillus amyloliquefaciens ,DP4 calculation ,Dermacoccus abyssi MT 1.1T ,Fusarium oxysporum f. sp. cubense ,Gastropoda ,Lipopolysaccharide (LPS) ,MALDI-TOF mass spectrometry ,Marfey's method ,Mariana Trench ,Mollusca ,Muriellopsis ,Paenibacillus ,Panama disease ,Penicillium griseofulvum ,Svalbard ,absorption maxima in the near infrared region ,anti-food allergy ,antibacterial ,antibiotics ,antifungal activity ,antimicrobial peptides ,bioactive compound ,biomaterials ,biotechnological application ,chemical ecology ,crustin ,cyclic tripeptides ,deep sea natural products ,deep-sea hydrothermal vent ,deep-sea microorganism ,dermacozine ,drug discovery ,freeze-drying ,fungal metabolites ,fungus ,green synthesis ,iturin A5 ,lipid A ,lipopeptide ,lutein ,marine bioprospecting ,marine biotechnology ,marine natural product ,marine natural products ,metal ,microalgae ,mycalols ,n/a ,nanotechnology ,phenoxazine ,psychrophiles ,quinone reductase ,shrimp ,sponges ,spray drying ,structural characterization ,supercritical fluid extraction ,terpene ,terpenoid - Abstract
Summary: This Special Issue, as a continuation of the previous Special Issue, "Bioactive Molecules from Extreme Environments" (https://www.mdpi.com/journal/marinedrugs/special_issues/Extreme_Environments accessed on 4 November 2021), includes 10 research articles and 2 reviews, providing a wide overview of the chemical biodiversity offered by different marine organisms inhabiting extreme environments to be used for biotechnological and pharmaceutical applications. The six articles in this Special Issue are focused on the polar regions, which represent an untapped source of marine natural products and are still largely unexplored compared to more accessible sites. Many of these articles refer to Antarctica, which is the coldest and most inaccessible continent on the Earth, where extreme temperatures, light and ice have selected biological communities with a unique suite of bioactive metabolites. The marine organisms of Arctic and Antarctic environments are a reservoir of natural compounds, exhibiting huge structural diversity and significant bioactivities that could be used in human applications.
11. The 2nd International Online Conference on Polymer Science-Polymers and Nanotechnology for Industry 4.0.
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Cicala, Gianluca, Cicala, Gianluca, Díez-Pascual, Ana, and Yusa, Shin-ichi
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History of engineering & technology ,Materials science ,Technology: general issues ,  ,Polymers ,nanocomposites ,nanotechnology - Abstract
Summary: The field of polymer composites is currently an area of intense research. The 2nd international Online Conference on Polymer Science-Polymers and Nanotechnology for Industry 4.0 was held on 1-15 November 2021. The conference was organized by the open access journal Polymers (MDPI) and offered researchers in the field of polymer and materials science the great opportunity to present their research and exchange ideas. Many works on Advanced Functional Polymeric Materials, Nanotechnologies in Polymer Science, Smart polymeric Synthesis, and Functional Biopolymers were presented.
12. Smart Nanosystems for Biomedicine, Optoelectronics and Catalysis.
- Author
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Shabatina, Tatyana, Bochenkov, Vladimir, and Shabatina, Tatyana
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Nanotechnology - Abstract
Summary: Nowadays nanoscience and nanotechnologies provide us with many excellent examples of the unique solutions for the different technical problems and demands of human society. Smart stimuli-responsive nanosystems and nanomaterials are used in many fields such as medicine, biomedical, biotechnology, agriculture, environmental pollution control, cosmetics, optics, health, food, energy, textiles, automotive, communication technologies, agriculture, and electronics. The book "Smart Nanosystems for Biomedicine, Optoelectronics and Catalysis" describes the modern trends in nanoscience and nanotechnology for creation of smart hybrid nanosystems combining the inorganic nano-objects with organic, biological, and biocompatible materials, which create multifunctional and remotely controlled platforms for diverse technical and biomedical uses. The material includes several review and original research articles devoted to the problems of directed chemical and biological synthesis of such nanosystems, thorough analysis of their physical and chemical properties and prospects of their possible applications. We hope that the presented book will be useful for different nanoscience research groups and PhD and graduate students, to introduce them to the world of hybrid metal-organic and metal-biological nano-objects, and smart self-organizing nanosystems and open new ways of their possible use in different scientific and practical areas.
13. Nanomaterials for Biomedical and Biotechnological Applications.
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Ferraro, Angelo and Ferraro, Angelo
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Biotechnology ,Technology: general issues ,COVID-19 ,Chlorella vulgaris ,Enterococcus faecalis ,MTT assay ,Parkinson's disease ,actuation system ,animal model ,anti-arthritic activity ,antibiotics ,antimicrobial resistance ,biological samples ,biomarkers ,biosensors ,blood-brain barrier ,boron nitride ,cerium oxide nanoparticles ,chitosan ,ciprofloxacin ,clay ,clinical trials ,colorectal cancer ,column-switching chromatography ,covalent immobilization ,cubic particles ,cytotoxic medication ,drug delivery ,drug release ,drug targeting ,economic analysis ,epigenetic changes ,genetic pathways ,gold nanoparticles ,harvesting process optimization ,hemocompatibility ,immune response ,liver and kidney infections ,magnetic driving ,magnetic gels ,magnetic hyperthermia ,magnetic lipogels ,magnetic nanoparticles ,methotrexate ,microfibers ,microwave-synthesized magnetite particles ,n/a ,nanocomposite films ,nanoemulsion ,nanofibers ,nanomedicine ,nanomodified surfaces ,nanoparticle functionalization ,nanotechnology ,neurodegenerative disease ,neutron capture reaction ,nuclear medicine ,on-line extraction ,ophthalmic applications ,optimization ,organic and inorganic nanoparticles ,orthopedic ,oxidative stress ,papain ,physicochemical properties ,phytomedicine ,plant design and process engineering ,prognostic ,response surface methodology ,restricted access media ,rheumatoid arthritis ,sanitizers ,self-assembly ,stability studies ,supramolecular hydrogels ,synthesis methods ,theranostic nanomaterials ,vaccines ,wine - Abstract
Summary: The need for constant improvement to reach a high standard of safety and to make nanomaterials accessible for marketing has generated a considerable number of scientific papers that highlight new important aspects to be considered, such as synthesis, stability, biocompatibility, and easy manipulation. In order to provide a comprehensive update on the latest discoveries concerning nanomaterials, this reprint presents 14 scientific papers, 10 research articles and 4 reviews, that deal with biomedical and biotechnological applications of nanomaterials.
14. Multifunctional Nanomaterials. Synthesis, Properties and Applications.
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Yadav, Raghvendra Singh and Yadav, Raghvendra Singh
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Technology: general issues ,AAO template ,FeSO4 ,MnSO4 ,Prussian blue analogues ,ROS generation ,ROS-scavenge ,SW480 cancer cell ,SeNPs ,T cell ,TeNPs ,X-ray fluorescence imaging ,XFI ,ZnSO4 ,benzene ,bioactivity ,bioapplications ,biodegradation ,biomass ,biosynthesis ,blood flow ,buprofezin ,catalase-like activity ,cluster ,compliant walls ,composite ,composite biomaterials ,constricted channel ,cyclohexene ,drug delivery system ,elimination ,enhanced mechanism ,gold ,gold catalyst ,hybrid nanofluid ,hybrid nanoparticles ,hydrotalcite ,immunotherapy ,liposomes ,magnesium ions ,magnetite nanoparticles ,mechanistic aspects ,metallic nanoparticles ,methyl isobutyrate ,microfibres ,microstructure ,multicatalytic activity ,n/a ,nanocrystalline hydroxyapatite ,nanofactories ,nanoparticle ,nanoparticles ,nanotechnology ,nanotheragnostics ,oxidative esterification ,palladium ,partial hydrogenation ,photodynamic therapy ,photosensitizers ,polycyclic aromatic hydrocarbon ,polyvinylpyrrolidone ,pulsatile flow ,quantum dot ,raloxifene ,reaction modifier ,reactive oxygen species ,redox potential ,sensing ability ,silicate ions ,simulation ,superoxide dismutase-like activity ,sustainability ,synthesis ,tunable particle size ,zinc oxide - Abstract
Summary: This book is a collection of review articles and research articles, which was published in the Special Issue "Multifunctional Nanomaterials: Synthesis, Properties and Applications" of the International Journal of Molecular Sciences.
15. EPR Effect-Based Tumor Targeted Nanomedicine.
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Maeda, Hiroshi and Maeda, Hiroshi
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Medicine ,Oncology ,Bifidobacterium ,DDS ,EPR ,EPR effect ,EPR-based therapy ,EPR-effect enhancers ,EPR-imaging techniques ,HPMA copolymers ,PEG blending ,TNBC ,anaerobic bacteria ,angiogenesis ,antioxidant ,arterial infusion ,bacterial therapy ,blood perfusion ,boron neutron capture therapy ,calcium phosphate ,cancer ,cancer therapy ,cancer treatment ,canine cancer ,carbon-ion beam therapy ,chemoadjuvant ,combination therapy ,controlled release ,dasatinib ,drug delivery ,drug repurposing ,enhanced permeability and retention effect ,extracellular matrix ,heterogeneity ,heterogeneity of the EPR effect ,hyaluronan ,hypoxia ,iDPS ,iNaD ,isosorbide dinitrate ,metabolism ,microRNA ,microenvironment ,n/a ,nanoformulation ,nanomedicine ,nanomedicines ,nanoparticles ,nanotechnology ,nitric oxide donors ,particle beam therapy ,passive targeting ,phosphodiesterase 5 inhibitors ,photodynamic ,photodynamic therapy ,poly(styrene-co-maleic acid) micelles ,proton beam therapy ,reactive oxygen species ,self-assembling drug ,siRNA ,sildenafil ,sildenafil citrate ,solid cancer ,solid-tumor ,targeted therapy ,targeting ,tumor ,tumor blood flow ,tumor targeting ,tumor vascular regulation ,tumor-selective drug delivery ,vascular permeability ,zinc protoporphyrin - Abstract
Summary: I am honored to undertake the work for Guest Editor for this Special Issue of EPR Effect-Based Tumor Targeted Nanomedicine for the Journal of Personalized Medicine. It has already been 35 years since we published the concept of the EPR effect for the first time. The discovery of the new concept of EPR effect gave an impetus effect of growth momentum in nanomedicine, and numerous works are focused on tumor delivery, although the initial idea was based on vascular permeability in infection-induced inflamed tissue, where we discovered bradykinin in the key mediator of vascular permeability.I know, however, there are pros and cons to EPR effect. Cons stem either from a poor understanding of EPR effect, or somehow a biased view of the EPR effect, or from the tumor models being used, particularly in the clinical settings where vascular blood flow is so frequently obstructed. I hope scientists in the clinic, or basic researchers working on the tumor drug delivery, will join the forum of this Special Issue and express their data and opinions.The scope of this issue includes an in-depth understanding of the EPR effect, and issues associated with tumor microenvironment and also further exploitation of EPR effect in human cancer. In addition, new strategies for enhancement of the EPR effect using nanomedicine will be welcome, which is as important as the EPR effect itself. These papers cover not only cancer therapy, but also imaging techniques using nanofluorescent agents, including photodynamic therapy for inflammation, and boron neutron capture therapy.
16. Advances in Nanomaterials in Biomedicine.
- Author
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Ryabchikova, Elena I. and Ryabchikova, Elena I.
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Medicine ,AuBSA-NPs ,AuNPs ,AuPEI-NPs ,Ceiba pentandra ,Entada spiralis ,Förster resonance energy transfer ,IL-1β ,PPI-Y ,RNA-Seq ,SOX9 ,SQUID ,TGF-β ,TNF-α ,active targeting ,amphiphile ,amphiphilic oligonucleotides ,angiogenesis ,antibacterial assay ,antioxidants ,aorta ,biocompatible nanomaterials ,biodegradable ,biological nano-antioxidants ,bone marrow-derived mesenchymal stromal cells ,cancer ,carbon dots ,carbosilane ,cartilage repair ,catalytic dye reduction ,chemoradiotherapy ,chemotherapy ,clinical translation ,computed tomography ,cytotoxicity ,dendron ,diagnosis ,diagnostics ,doxorubicin ,drug delivery ,drug delivery system ,electron microscopy ,fluorescence ,gold nanoparticles ,gold nanostars ,hard tissue engineering ,heart ,human articular cartilage ,hydrogels ,immune response ,immune-checkpoint inhibitors ,immunogenic cell death ,immunotherapy ,inflammation ,iron content ,iron nanoparticles ,leukaemia ,leukemia ,lipid conjugates ,liver fibrosis ,magnetic properties ,magnetite nanoparticles ,magnetolipogels ,magnetoliposomes ,methotrexate ,molecular imaging ,molecular ultrasound ,nano-biomaterials ,nano-conjugates ,nano-vaccines ,nanobubbles ,nanocarriers ,nanomaterials ,nanomedicine ,nanoparticles ,nanotechnology ,nucleic acid delivery ,oncotherapy ,osteoarthritis ,oxidative stress ,pH-sensitive ,penetration of NPs into monolayer and spheroids ,pharmaceutical ,phosphoryl guanidines ,photoacoustic imaging ,photothermal therapy ,polyethylenimines ,polymeric micelles ,polymeric nanoparticles ,polymers ,polypropylenimine dendrimers ,pro-inflammatory cytokines ,rAAV vectors ,radiation ,radiosensitizer ,scaffolds ,self-assembly ,siRNA transfection ,silver nanoparticles ,superoxide ,targeted drug delivery ,targeted microbubbles ,theranostic agents ,theranostics ,therapy ,thrombosis ,tissue engineering ,triazine ,tyrosine-modified polyethlyenimines ,tyrosine-modified polypropylene-imines ,ultrastructure of HEK293 cells and spheroids ,ultrastructure of HepG2 cells and spheroids ,vesicles - Abstract
Summary: Advances in Nanomaterials in Biomedicine" provided a platform for more than 110 researchers from different countries to present their latest investigations in various fields of nanotechnology, new methods and nanomaterials intended for medical applications. Modern achievements in the field of nanoparticle-based diagnostics, drug delivery and the use of various nanomaterials in the treatment of diseases are presented in 11 original articles. The published reviews provide a comprehensive analysis of the current information on the use of nanomedicine in the treatment and diagnosis of cancer and liver fibrosis, in the field of solid tissue engineering and in drug delivery systems.
17. Science Fiction Rebels: The Story of the Science-Fiction Magazines from 1981 to 1990
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Ashley, Mike, author and Ashley, Mike
- Published
- 2016
- Full Text
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18. Ion Beams in Nanoscience and Technology
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Zhang, Yanwen
- Published
- 2010
- Full Text
- View/download PDF
19. Handbook of Electrochemical Nanotechnology
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Nalwa, H
- Published
- 2009
20. Nanomaterials-Enhanced Electrically Switched Ion Exchange Process for Water Treatment
- Author
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Bontha, Jagannadha
- Published
- 2009
21. Auger-Architectomics: Introducing a New Nanotechnology to Infectious Disease.
- Author
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Swart, Chantel W., Pohl, Carolina H., and Kock, Johan L. F.
- Abstract
In 2010, we developed a new imaging nanotechnology called Auger-architectomics, to study drug biosensors in nano-detail. We succeeded in applying Auger atom electron physics coupled to scanning electron microscopy (SEM) and Argon-etching to cell structure exploration, thereby exposing a new dimension in structure and element composition architecture. Auger-architectomics was used to expose the fate and effect of drugs on cells. This technology should now be expanded to diseased cells. This paper will outline the development, proof of concept, and application of this imaging nanotechnology. A virtual tour is available at: http://vimeo.com/user6296337 . [ABSTRACT FROM AUTHOR]
- Published
- 2014
- Full Text
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22. The Custom-Made Brain: Cerebral Plasticity, Regeneration, and Enhancement
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Lledo, Pierre-Marie, author, Vincent, Jean-Didier, author, Garey, Laurence, translator, Lledo, Pierre-Marie, and Vincent, Jean-Didier
- Published
- 2014
- Full Text
- View/download PDF
23. Singularities: Technoculture, Transhumanism, and Science Fiction in the 21st Century
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Raulerson, Joshua, author and Raulerson, Joshua
- Published
- 2013
- Full Text
- View/download PDF
24. Chapter 18: Nanocomputers.
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Hall, J. Storrs
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TRANSHUMANISM ,NANOTECHNOLOGY - Published
- 2013
25. Engaging the fourth industrial revolution
- Author
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Van den Berg, Jan Albert
- Subjects
Fourth Industrial Revolution ,technological drivers ,Artificial intelligence ,Bio-engineering ,Robotics ,Nanotechnology ,Quantum computing ,theological reflection ,Dystopian ,utopian futures ,Christian faith ,Stiegler ,Religious leadership ,bic Book Industry Communication::H Humanities::HR Religion & beliefs::HRL Aspects of religion (non-Christian)::HRLB Theology ,bic Book Industry Communication::J Society & social sciences::JH Sociology & anthropology - Abstract
The reality of a radically changing world is beyond dispute. The notion of the Fourth Industrial Revolution is a heuristic key for the world of emerging technologies such as artificial intelligence, nanotechnology, quantum computing, big data, the internet of things, and biotechnology. The discussion of emerging technologies and the Fourth Industrial Revolution highlights urgent questions about issues like intention, function, risk, and responsibility. This publication stimulates further reflection, ongoing conversation, and eventually the production of more textured thinking. The conversation with technology and with thinkers on technology, holds the promise of a certain fecundity, the possibility to see deeper into human evolution, but also, may be, into the future of humankind.
- Published
- 2020
- Full Text
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26. Nanoscale Photonic Imaging
- Author
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Salditt, Tim, Egner, Alexander, and Luke, D. Russell
- Subjects
Spectroscopy and Microscopy ,Biological Microscopy ,Optics, Lasers, Photonics, Optical Devices ,Computer Imaging, Vision, Pattern Recognition and Graphics ,Nanoscale Science and Technology ,Characterization and Evaluation of Materials ,Spectroscopy ,Life Sciences ,Laser ,Nanophysics ,Characterization and Analytical Technique ,X-ray optics ,X-ray imaging ,Mathematical imaging ,Sub-diffraction optical microscopy ,Multidimensional microscopy ,High resolution spectroscopy ,Lensless imaging ,Time dependent x-ray scattering ,Inverse optical problems ,Nano biophotonics ,DFG funded OA book ,Nanoscale optical imaging ,Nanoscale biological imaging ,Open Access ,Spectrum analysis, spectrochemistry, mass spectrometry ,Scientific equipment, experiments & techniques ,Biology, life sciences ,Optical physics ,Applied optics ,Computer vision ,Nanotechnology ,Testing of materials ,bic Book Industry Communication::P Mathematics & science::PN Chemistry::PNF Analytical chemistry::PNFS Spectrum analysis, spectrochemistry, mass spectrometry ,bic Book Industry Communication::P Mathematics & science::PS Biology, life sciences ,bic Book Industry Communication::P Mathematics & science::PH Physics::PHJ Optical physics ,bic Book Industry Communication::U Computing & information technology::UY Computer science::UYQ Artificial intelligence::UYQV Computer vision ,bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues::TBN Nanotechnology ,bic Book Industry Communication::T Technology, engineering, agriculture::TG Mechanical engineering & materials::TGM Materials science::TGMT Testing of materials - Abstract
This open access book, edited and authored by a team of world-leading researchers, provides a broad overview of advanced photonic methods for nanoscale visualization, as well as describing a range of fascinating in-depth studies. Introductory chapters cover the most relevant physics and basic methods that young researchers need to master in order to work effectively in the field of nanoscale photonic imaging, from physical first principles, to instrumentation, to mathematical foundations of imaging and data analysis. Subsequent chapters demonstrate how these cutting edge methods are applied to a variety of systems, including complex fluids and biomolecular systems, for visualizing their structure and dynamics, in space and on timescales extending over many orders of magnitude down to the femtosecond range. Progress in nanoscale photonic imaging in Göttingen has been the sum total of more than a decade of work by a wide range of scientists and mathematicians across disciplines, working together in a vibrant collaboration of a kind rarely matched. This volume presents the highlights of their research achievements and serves as a record of the unique and remarkable constellation of contributors, as well as looking ahead at the future prospects in this field. It will serve not only as a useful reference for experienced researchers but also as a valuable point of entry for newcomers.
- Published
- 2020
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27. ˵Overview on Nanotechnology and Angiogenesis in Major Diseases Processes″.
- Author
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Cuadal, Judith Sendra, Morral, Mercè, and Ramis-Castelltort, Marc
- Abstract
Angiogenesis, the growth of new blood vessels from pre-existing vasculature, plays an important role in physiological and pathological conditions. For this reason, the study of different anti-angiogenic drugs and its improvement is spread around the world. Nanotechnology gives novel opportunities to the development of new drugs. Based on nanosized systems, nanotechnology applied in medicine can improve the diagnosis and the treatment of the great majority of diseases. Nanomedicine has been applied in diagnosis, imaging and in drug delivery systems. Specifically in angiogenesis, researchers have developed new angiogenesis targeted nanosystems and have demonstrated that they can improve the diagnosis and the treatment of different diseases in areas like oncology, cardiology and ophthalmology. [ABSTRACT FROM AUTHOR]
- Published
- 2011
- Full Text
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28. Monitoring Inflammation and Infection via Implanted Nanosensors.
- Author
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Ercan, Batur, Tran, Nhiem, and Webster, Thomas J.
- Abstract
Sensors are being used for a wide range of applications. Some of the most intriguing applications are those that involve detecting infection and inflammation. This chapter covers some fundamentals of medical device infection as well as inflammation and how sensors are being used to detect such events. It is hoped that such sensors would detect bacteria presence before infection sets in and then indicate to a clinician that such infection has occurred. It is also hoped that sensors will be able to determine early events in inflammation to avoid chronic inflammation that has plagued numerous medical devices. This chapter summarizes such advances. [ABSTRACT FROM AUTHOR]
- Published
- 2011
- Full Text
- View/download PDF
29. Monitoring Tissue Healing Through Nanosensors.
- Author
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Yang, Lei and Webster, Thomas J.
- Abstract
Nanotechnology is the use of materials with at least one dimension less than 100 nm. Nanotechnology has already revolutionized numerous fields, from construction to computers. Recently, nanotechnology has also been used to improve disease detection and treatment by developing wireless in situ sensors. Importantly, the use of wireless technologies in medicine, such as wireless body area networks and wireless personal area networks, is not new as they provide many promising applications in medical monitoring systems to measure physiological data from specific anatomical areas. Nanotechnology can aid in the functioning of wireless medical devices since it can provide for materials smaller in size (thus, minimally interacting with tissues to invoke an immune response), better in properties (such as electronic), and more similar to those of natural tissues since natural tissues are composed of nanoscale entities. In fact, studies have demonstrated increased tissue growth, decreased inflammation, and decreased infection of numerous nanoscale compared to currently used micron-scale materials. Due to the above, an ever-expanding range of therapeutic and diagnostic applications are being pursued by academic and industrial researchers. This chapter aims to provide a comprehensive review of recent developments in wireless sensor nanotechnology for monitoring and controlling cell responses. [ABSTRACT FROM AUTHOR]
- Published
- 2011
- Full Text
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30. DNA-Based Nanotechnology Biosensors for Surgical Diagnosis.
- Author
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Chen, Yupeng and Yu, Hongchuan
- Abstract
This chapter covers the use of DNA in biological sensing devices. Although DNA has been used for a number of years for in vitro sensing applications, there are several unique challenges to using DNA as in vivo sensors. This chapter covers some of the more significant advances in this field highlighting how these challenges are being met. In doing so, it emphasizes various ways DNA can be immobilized to implants to sense implant functionality. It also emphasizes various forms of DNA highlighting the advantages and disadvantages for in vivo sensor applications. [ABSTRACT FROM AUTHOR]
- Published
- 2011
- Full Text
- View/download PDF
31. Micro and Nanotechnologies for Tissue Engineering.
- Author
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Chahine, Nadeen O. and Chao, Pen-hsiu Grace
- Abstract
Nanotechnology has enabled the creation of novel structures or devices with organization and structure at the molecular and atomic scale. Nano-dimensions impart distinctive properties compared to micron sized materials. In this chapter, we will review techniques for creation of micron and nanometer features on 2D substrates and 3D nanomaterials which have been used in tissue engineering applications. In the first half, we will review the latest advances in custom designed micro- and nano-substrates to enhance the phenotypic expressions of cells and mechanisms behind changes in cell behaviors. In the second half, we will focus on nanomaterials and discuss recent developments in both design and applications for tissue engineering and mechanisms behind cellular interactions with nanomaterials. In addition, an examination of the effects of nanomaterials on biocompatibility and cytotoxicity will be presented. Specific applications of nanomaterials in tissue engineering of connective, neural, muscular and boney tissue will also be examined. [ABSTRACT FROM AUTHOR]
- Published
- 2011
- Full Text
- View/download PDF
32. The Molecular Workbench Software: An Innovative Dynamic Modeling Tool for Nanoscience Education.
- Author
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Xie, Charles and Pallant, Amy
- Abstract
Nanoscience and nanotechnology are critically important in the twenty-first century (National Research Council, 2006; National Science and Technology Council, 2007). This is the field in which major sciences are joining, blending, and integrating (Battelle Memorial Institute & Foresight Nanotech Institute, 2007; Goodsell, 2004). [ABSTRACT FROM AUTHOR]
- Published
- 2011
- Full Text
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33. Nanotechnology for Various Applications: Materials, Environmental and Medical.
- Author
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Vipulanandan, Cumaraswamy
- Abstract
Within the past two decades, the production, characterization and -application of nanotechnology has had exponential growth. In this study, nano-size materials in the liquid (micelles and liposome) and solid (nanoparticles) phases have been used to advance the technologies in the areas of materials (superconductors), environmental (waste treatment) and medical (drug delivery) applications. In order to produce nanoparticles of various sizes and shapes, many technologies are being used to achieve the results. In this study, ceramics and metal nanoparticles were produced using the solution, microemulsion and foam methods. Superconducting materials were produced using the microemulsion method. Nano-size iron and bimetallic particles were synthesized using the solution method, foam method and microemulsion method and particles were characterized using dynamic light scattering (DLS), SEM, EDX and XRD. The goal of the drug delivery study was to develop asymmetric liposomes with cationic lipids in the inner leaflet to encapsulate negatively charged polynucleotides and to place neutral/anionic lipids on the outer leaflet to decrease non-specific cellular uptake/toxicity. Inverse emulsion particles (water in oil) with a single lipid leaflet of cationic were transported through water in oil layer, entrapping the second neutral lipid to form asymmetric liposomes. The stability and changes in size of the asymmetric liposomes were investigated for a period of a week using a DLS device. Asymmetric liposomes were nano-size and the liposomes were stable for the time period investigated. [ABSTRACT FROM AUTHOR]
- Published
- 2011
- Full Text
- View/download PDF
34. Nanoscale Imaging of 3D Surfaces and Interfaces.
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Yablon, Dalia G. and Schilowitz, Alan M.
- Abstract
Nanoscale characterization of a number of different properties of surfaces and interfaces includes topography, electrostatic and magnetic fields, material properties, tribological properties, piezoresponse, and surface potential. All these properties can be studied in flexible environments with minimal sample preparation and in ambient and liquid environments using scanning probe microscopy. This chapter will focus on two primary techniques: scanning tunneling microscopy and atomic force microscopy. These modalities allow a surface scientist to characterize and study surfaces, interfaces, and surface reactions. [ABSTRACT FROM AUTHOR]
- Published
- 2011
- Full Text
- View/download PDF
35. Early-Stage Diagnosis of Endogenous Diseases by Swarms of Nanobots: An Applicative Scenario.
- Author
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Amato, Paolo, Masserini, Massimo, Mauri, Giancarlo, and Cerofolini, Gianfranco
- Abstract
The development of artificial devices (nanobots), working as blood white cells but addressed to the recognition and eventually the destruction of endogenous pathological states, is an ambitious goal. Swarm intelligence can be a key element to successfully tackle the challenges posed by this goal. Here we describe an applicative scenario, based on swarm of nanobots, by sketching the environment in which the nanobots operate, the constraints related to their physical implementation, and the tasks they have to tackle. In this scenario, we propose to use collisions between nanorobots as a way of communication inside the swarm. [ABSTRACT FROM AUTHOR]
- Published
- 2010
- Full Text
- View/download PDF
36. Nanotechnology: Nanotechnology and Human Enhancement.
- Author
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Bennett-Woods, Deb
- Abstract
A journey into the future of medicine and the ethical concerns raised by the use of techniques of nanotechnology, biotechnology, and cognitive science for the purpose of human enhancement. [ABSTRACT FROM AUTHOR]
- Published
- 2010
- Full Text
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37. Nanotechnology.
- Author
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Kelty, Christopher M.
- Abstract
Ethical issues concerning nanotechnology and products based on research conducted at the nanoscale include toxicity, environmental impacts, the knowledge gap, and various risks. [ABSTRACT FROM AUTHOR]
- Published
- 2010
- Full Text
- View/download PDF
38. Nanocomposites for Regenerative Medicine.
- Author
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Hoshi, Ryan, Webb, Antonio R., Qiu, Hongjin, and Ameer, Guillermo A.
- Abstract
This chapter describes properties and applications of nanocomposites in tissue engineering and regenerative medicine with an emphasis on the impact of the nanophase on nanocomposite function. The nanophase can be used as a means to engineer new physical properties that improve the utility of tissue engineering scaffolds. Several examples of the use of the nanophase for mechanical reinforcement or drug delivery are discussed with an emphasis on understanding how nanoparticles are used to achieve the controlled release of macromolecules. Advances in nanotechnology, knowledge of mechanical reinforcement at the nanoscale level, and new strategies for controlled drug release will contribute to the next generation of nanocomposite-based scaffolds designed for regenerative medicine. [ABSTRACT FROM AUTHOR]
- Published
- 2010
- Full Text
- View/download PDF
39. Injectable Hydrogels: From Basics to Nanotechnological Features and Potential Advances.
- Author
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Baroli, Biancamaria
- Abstract
The purpose of this contribution is twofold: firstly, to describe methods of preparation, physical chemical properties, and potential issues of injectable hydrogel-based formulations from a tissue engineering perspective, and, secondly, to highlight their nanotechnological features and future potentials. [ABSTRACT FROM AUTHOR]
- Published
- 2010
- Full Text
- View/download PDF
40. Retracted: A State Variables Analysis for Emerging Nanoelectronic Devices.
- Author
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Vaitheki, K. and Tamijetchelvy, R.
- Abstract
A collection of technologies that operates, analyzes, and controls materials at the nanoscopic level, is now merging into the main stream of electronics with examples ranging from quantum-electronic lasers to memory devices, even Nano Electro Mechanical Systems (NEMS) known as the Nanotechnology. State variables are physical representations of information used to perform information processing via memory and logic functionality. Advances in material science, emerging nanodevices, nanostructures, and architectures have provided hope that alternative state variables based on new mechanisms, nanomaterials, and nanodevices may indeed be plausible. The review and analysis of the computational advantages that alternate state variables may possibly attain with respect to maximizing computational performance via minimum energy dissipation, maximum operating switching speed, and maximum device density is performed. An outlook of some important state variables for emerging nanoelectronic devices is suggested in the work. [ABSTRACT FROM AUTHOR]
- Published
- 2010
- Full Text
- View/download PDF
41. The Effect of Pipette Tip Roughness on Giga-seal Formation.
- Author
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Malboubi, M., Ostadi, H., Wang, S., Gu, Y., and Jiang, K.
- Subjects
- *
PATCH-clamp techniques (Electrophysiology) , *PIPETTES , *GLASS pipe , *NANOTECHNOLOGY , *CLAMPING circuits - Abstract
Reported is a study of applying nanofabrication technology to improve the surface roughness of micro glass pipettes to achieve giga ohm seal resistance in patch clamping processes. The surface roughness of pipette tips was first measured by 3D reconstruction of pipette tips using stereo imaging technique based on high resolution SEM images. Both the SEM images and the reconstructed images show that micro glass pipettes have rough and uneven tips which could be one of the causes of leakage in patch clamping. Then focused ion beam system was used to cut across the very end of the tip, producing a smooth and flat new tip. The average surface roughness Ra of a milled pipette tip was within a few nanometres. Patch clamping experiments were carried out using the polished pipettes on human umbilical vein endothelial cells (HUVEC), which were well known for their extremely flat shape making them very difficult to patch. The results show that above 3 Giga ohm seals were achieved in 60% of the experiments, as opposed to 1.5-2.0 GΩ in average with the conventional pipettes. The highest seal resistance achieved with a focused ion beam polished pipette was 9 GΩ, well above the 3 GΩ resistance, the usually best result achieved with a conventional pipette. The leakage current in single channel recording afterwards was found 0.3 pA, significantly smaller than 2-3 pA usually achieved using conventional pipettes. The research results demonstrate that the surface roughness of a pipette has a significant effect on the giga-seal formation of a patch clamping process. [ABSTRACT FROM AUTHOR]
- Published
- 2009
42. Benefits and Dangers of Nanotechnology: Health and Terrorism.
- Author
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Owusu, Y. A., Chapman, H., Dargan, T. N., and Mundoma, C.
- Abstract
The first goal in this paper is to discuss the fundamental principles, applications, advantages, and disadvantages of nanotechnology with a view of promoting the importance and validity of nanotechnology in the developed countries as well as the emerging developing countries in Africa and elsewhere. The second goal is intended to provoke critical thinking, analysis, medical applications, environmental and economic issues or implications involving nanotechnology. The third goal is to discuss the potential security threat that would pose world peace, should nanotechnology, nanodevices, nanomaterials fall into the wrong hands. [ABSTRACT FROM AUTHOR]
- Published
- 2009
- Full Text
- View/download PDF
43. Physicochemical Basics Of Biosystems Organization And Development.
- Author
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Bobukh, L. V., Dzhebyan, I. E., Sivolap, T. N., and Bobukh, K. A.
- Abstract
Energy-elemental principles of organization and functioning of living H, p-elemental systems out of a biotic environment are scientifically based. Basics of an influence of changing factors of environment (C elements, E energy, S configuration of a way, V speed) on processes of organization and development of different forms of living organisms during several geological epochs are determined and graphically expressed. Creation of artificial biosystems as conjugation of elements and energies being task-oriented (on nanolevel) by intelligent natural biosystem (human being) is determined. [ABSTRACT FROM AUTHOR]
- Published
- 2009
- Full Text
- View/download PDF
44. Modelling Nanorobot Control Using Swarm Intelligence: A Pilot Study.
- Author
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Kaewkamnerdpong, Boonserm and Bentley, Peter J.
- Abstract
Advances in the development of nanotechnology gradually bring the field into its next generation involving systems of nanosystems. These bring about opportunities for computer science researchers to contribute their work as guidelines for the realisation and development of nanorobot systems in the near future. It is anticipated that an early version of future nanorobots may potentially contain only essential characteristics and exhibit only simple behaviours. It is similar to social insects in nature; collaborative behaviour among such simple individual exhibits a remarkable degree of intelligence. Hence, swarm intelligence techniques inspired by social insects could potentially be applied for nanorobot control mechanism in self-assembly. This study models an early version of future nanorobots and a control mechanism using swarm intelligence, especially PPSO (the modification of PSO for physical applications), for self-assembly and self-repair to examine the minimal characteristics and functionality for future nanorobots. [ABSTRACT FROM AUTHOR]
- Published
- 2009
- Full Text
- View/download PDF
45. Radix-4 Recoded Multiplier on Quantum-Dot Cellular Automata.
- Author
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Hänninen, Ismo and Takala, Jarmo
- Abstract
This paper describes the implementation of an advanced multiplication algorithm on quantum-dot cellular automata (QCA) nanotechnology, promising molecular density circuits with extreme operating frequencies, using a single homogeneous layer of the basic cells. The multiplier layout is verified with time-dependent quantum mechanical simulation, to ensure stable ground state computation under the fine-grained pipelining constraints of the technology. The novel design utilizes radix-4 modified Booth recoding and ultra-fast carry-save addition, resulting in stall-free pipeline operation, with twice the throughput of the previous sequential structure and minimized active circuit area. [ABSTRACT FROM AUTHOR]
- Published
- 2009
- Full Text
- View/download PDF
46. Advanced Environment Friendly Nanotechnologies.
- Author
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Figovsky, O., Beilin, D., and Blank, N.
- Abstract
The economic, security, military and environmental implications of molecular manufacturing are extreme. Unfortunately, conflicting definitions of nanotechnology and blurry distinctions between significantly different fields have complicated the effort to understand those differences and to develop sensible, effective policy for each. The risks of today's nanoscale technologies cannot be treated the same as the risks of longer-term molecular manufacturing. It is a mistake to put them together in one basket for policy consideration – each is important to address, but they offer different problems and will require far different solutions. As used today, the term nanotechnology usually refers to a broad collection of mostly disconnected fields. Essentially, anything sufficiently small and interesting can be called nanotechnology. Much of it is harmless. For the rest, much of the harm is of familiar and limited quality. Molecular manufacturing, by contrast, will bring unfamiliar risks and new classes of problems. The advanced environment friendly nanotechnologies elaborated by Israel Company Polymate Ltd. – International Research Center are illustrated. [ABSTRACT FROM AUTHOR]
- Published
- 2009
- Full Text
- View/download PDF
47. Nanostructured Materials For Advanced Technological Applications: A Brief Introduction.
- Author
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Kulisch, W., Freudenstein, R., Ruiz, A., Valsesia, A., Sirghi, L., Ponti, J., Colpo, P., and Rossi, F.
- Abstract
In this contribution a short introduction to nanostructured materials for advanced technological applications is presented. A major aim is to demonstrate, on the one hand, the diversity of approaches, methods, techniques and solutions, which are used currently worldwide – but also by the authors of the contributions collected in this book – in the field of nano-structured materials, but also that, on the other hand, these diverse topics are based on the same principles, face similar problems, and bear similar prospects for future applications. For this reason, frequent reference is made to the contributions to this book. Some examples to illustrate current topics, advances and problems are taken from the recent work of the present home institute of the author, the NanoBioTech group of the IHCP at the JRC. [ABSTRACT FROM AUTHOR]
- Published
- 2009
- Full Text
- View/download PDF
48. Peptic Ulcer Detection Using DNA Nanorobot Based on Fuzzy Logic Rules.
- Author
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Paul, Sanchita, Singh, Abhimanyu K., and Sahoo, Gadhadhar
- Abstract
Ongoing development in nanotechnology and bioinformatics will enable the construction of nanorobot which will work at nano-scale. Nanorobot development has many challenges and limitations such as its control and behaviour in different environments. In this proposed work we present DNA nanorobot design, methodology for detection of Helicobacterpylori (H. Pylori) infection and DNA nanorobot control techniques for its movement in dynamic environment are described using Fuzzy Logic (FL) rules. Propose model will detect the CagA protein in blood and subsequently indicates towards H. pylori infection. [ABSTRACT FROM AUTHOR]
- Published
- 2009
- Full Text
- View/download PDF
49. Applications to Nano-Dispersion Macromolecule Material Evaluation in an Electrophotographic Printer.
- Author
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Bhushan, Bharat, Tomitori, Masahiko, Fuchs, Harald, and Kadota, Yasushi
- Abstract
In this chapter, applications of analytical methods using SPM to improve the electrophotographic processes used in laser printers, copy machines and so on are described from an industrial viewpoint. Many components for the processes work in a well-controlled manner with macromolecules in high electric field under pressure at high temperature. The achievable print quality and reliability crucially depend on their properties on a microscale or nanoscale. It is noted that the cross-sectional phase imaging by AFM is very powerful to evaluate the compositions and interfacial structures of toner particles on the components as well as charging states and adhesive force. [ABSTRACT FROM AUTHOR]
- Published
- 2008
- Full Text
- View/download PDF
50. Automated AFM as an Industrial Process Metrology Tool for Nanoelectronic Manufacturing.
- Author
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Bhushan, Bharat, Tomitori, Masahiko, Fuchs, Harald, Bao, Tianming, Fong, David, and Hand, Sean
- Abstract
Scanning probe microscope (SPM) techniques, invented 20 years ago, act as eyes for nanotechnology and nanoscience research and development, for imaging and characterizing surface topography and properties at atomic resolution. Particularly for the past decade, atomic force microscopy (AFM, one member of the SPM family) has evolved from laboratory research instrumentation to an industry metrology tool for geometric dimension control in nanoelectronic device manufacturing on production floors. This chapter gives an overview in great technical detail of state-of-the-art AFM applications in process characterization and inline monitoring for semiconductor manufacturing. Use of AFM equally applies for topography, dimension, and sidewall shape metrology in photomask and hard disk recording head processing. [ABSTRACT FROM AUTHOR]
- Published
- 2008
- Full Text
- View/download PDF
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