Controlled Radical Polymerization By The Electrochemically Active Bacteria Shewanella Oneidensis
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Controlled Radical Polymerization By The Electrochemically Active Bacteria Shewanella Oneidensis
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Author : Gang Fan
language : en
Publisher:
Release Date : 2019
Controlled Radical Polymerization By The Electrochemically Active Bacteria Shewanella Oneidensis written by Gang Fan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with categories.
Atom transfer radical polymerization (ATRP) has emerged as a robust tool to synthesize soft materials with defined structures for bioengineering and nanocomposites. In the past decade, numerous efforts were devoted to developing a novel polymerization method, electrochemically controlled radical polymerization (eATRP), which requiring less catalysts. However, due to restriction of special design, susceptible to oxygen and less control in aqueous buffers, challenges still remain. To address these difficulties, we hypothesized extracellular electron transfer from micro-oganisms could be utilized to control the performance of an exogenous oxidation-reduction (redox) reaction. We show that the electroactive bacterium Shewanella oneidensis can control the activity of a copper catalyst in ATRP. Precise control over the molecular weight and polydispersity of synthetic polymer could be achieved by mixing the bacterial suspension into the reaction medium. We also found that catalyst performance could be augmented by specific electron transport proteins and bacterial metabolism, offering potential targets for future applications. Performing ATRP under air is almost impossible because oxygen will quench the polymerization. We show that S. oneidensis can control metal-catalyzed living radical polymerizations under aerobic conditions by first consuming dissolved oxygen via aerobic respiration, then directing extracellular electron flux to the polymerization catalysts. In both open and closed containers, S. oneidensis enabled living radical polymerizations without requiring the pre-removal of oxygen. Polymerization activity was effective for wide ranges of monomers using low concentrations of biocompatible metal catalysts including Fe and Co. Moreover, polymerizations could be initiated using lyophilized or spent (recycled) cells. Finally, in order to understand the surface chemistry of metal organic frameworks (MOFs), we develop a surface functionalization method for water-stable MOFs by phage display. Specific frameworks binding peptides were identified, and their thermodynamic binding affinities and specificities were measured. Microscopy, X-ray diffraction, and gas adsorption analysis confirmed that the peptide functionalized frameworks retained similar characteristics. Microcopy imaging technique showed that peptide was localized on the surface of the frameworks, without blocking pore of MOFs. Last but not least, we measured the pH-dependent release of fluorescein from peptide-functionalized frameworks and discovered that peptide-binding can attenuate fluorescein release by improving framework stability under low pH conditions
Click Polymerization
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Author : Anjun Qin
language : en
Publisher: Royal Society of Chemistry
Release Date : 2018-08-28
Click Polymerization written by Anjun Qin and has been published by Royal Society of Chemistry this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-08-28 with Science categories.
Click chemistry describes organic reactions which are highly efficient, regioselective and allow for mild reaction conditions. The archetypal click reaction of Cu(I)-catalyzed azide-alkyne cycloaddition (CuAAC) is used in many diverse areas and has been extensively developed for polymer synthesis, leading to the term of click polymerization. This technique enables the preparation of functional polymers with linear and topological structures that have the potential to be used in optoelectronics and biological fields. Edited by world renowned experts, Click Polymerization is the first book to comprehensively summarize this approach to polymer synthesis consolidating all the different reaction types in one resource. From the basic knowledge through to the latest developments in synthesis, chapters include transition-metal catalysed and metal-free azide-alkyne click polymerizations as well as thiol-ene, thiol-yne and thiol-epoxy click polymerizations. The book provides an authoritative guide to click polymerization techniques for graduate students and researchers interested in polymer chemistry and materials science.
International Society For Microbial Electrochemistry And Technology Outputs From The 2018 Regional Meetings
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Author : Sarah Glaven
language : en
Publisher: Frontiers Media SA
Release Date : 2020-07-09
International Society For Microbial Electrochemistry And Technology Outputs From The 2018 Regional Meetings written by Sarah Glaven and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-07-09 with categories.
Comprehensive Biomaterials Ii
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Author : Kevin Healy
language : en
Publisher: Elsevier
Release Date : 2017-05-18
Comprehensive Biomaterials Ii written by Kevin Healy and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-05-18 with Technology & Engineering categories.
Comprehensive Biomaterials II, Second Edition, Seven Volume Set brings together the myriad facets of biomaterials into one expertly-written series of edited volumes. Articles address the current status of nearly all biomaterials in the field, their strengths and weaknesses, their future prospects, appropriate analytical methods and testing, device applications and performance, emerging candidate materials as competitors and disruptive technologies, research and development, regulatory management, commercial aspects, and applications, including medical applications. Detailed coverage is given to both new and emerging areas and the latest research in more traditional areas of the field. Particular attention is given to those areas in which major recent developments have taken place. This new edition, with 75% new or updated articles, will provide biomedical scientists in industry, government, academia, and research organizations with an accurate perspective on the field in a manner that is both accessible and thorough. Reviews the current status of nearly all biomaterials in the field by analyzing their strengths and weaknesses, performance, and future prospects Covers all significant emerging technologies in areas such as 3D printing of tissues, organs and scaffolds, cell encapsulation; multimodal delivery, cancer/vaccine - biomaterial applications, neural interface understanding, materials used for in situ imaging, and infection prevention and treatment Effectively describes the many modern aspects of biomaterials from basic science, to clinical applications
Bioelectrosynthesis
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Author : Falk Harnisch
language : en
Publisher: Springer
Release Date : 2019-01-04
Bioelectrosynthesis written by Falk Harnisch and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-01-04 with Science categories.
This volume discusses both the latest experimental research in bioelectrosynthesis and current applications. Beginning with an introduction into the “electrification of biotechnology” as well as the underlying fundamentals, the volume then discusses a wide range of topics based on the interfacing of biotechnological and electrochemical reaction steps. It includes contributions on the different aspects of bioelectrochemical applications for synthesis purposes, i.e. the production of fine and platform chemicals based on enzymatically or microbially catalyzed reactions driven by electric energy. The volume finishes with a summary and outlook chapter which gives an overview of the current status of the field and future perspectives. Edited by experts in the field, and authored by a wide range of international researchers, this volume assesses how research from today’s lab bench can be developed into industrial applications, and is of interest to researchers in academia and industry.
Biochemical Sensors In 2 Volumes
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Author : Huangxian Ju
language : en
Publisher: World Scientific
Release Date : 2021-06-08
Biochemical Sensors In 2 Volumes written by Huangxian Ju and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-06-08 with Science categories.
This book covers the full scope of biochemical sensors and offers a survey of the principles, design and applications of the most popular types of biosensing devices. It is presented in 19 chapters, written by 20 distinguished scientists as well as their co-workers. The topics include the design of signal transducers, signal tags and signal amplification strategies, the structure of biosensing interfaces with new biorecognition elements such as aptamers and DNAzymes, and different newly emerging nanomaterials such as Au nanoclusters, carbon nitride, silicon, upconversion nanoparticles and two-dimensional materials, and the applications in wearable detections, biofuel cells, biomarker analyses, bioimaging, single cell analysis and in vivo sensing.By discussing recent advances, it is hoped this book will bridge the common gap between research literature and standard textbooks. Research into biochemical sensors and their biomedical applications is proceeding in a number of exciting directions, as reflected by the content. This book is published in honor of the 90th birthday of Professor Shaojun Dong, who performed many pioneering studies on modified electrodes and biochemical sensors.
Bioelectrochemical Systems
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Author : Korneel Rabaey
language : en
Publisher: IWA Publishing
Release Date : 2009-12-01
Bioelectrochemical Systems written by Korneel Rabaey and has been published by IWA Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-12-01 with Science categories.
In the context of wastewater treatment, Bioelectrochemical Systems (BESs) have gained considerable interest in the past few years, and several BES processes are on the brink of application to this area. This book, written by a large number of world experts in the different sub-topics, describes the different aspects and processes relevant to their development. Bioelectrochemical Systems (BESs) use micro-organisms to catalyze an oxidation and/or reduction reaction at an anodic and cathodic electrode respectively. Briefly, at an anode oxidation of organic and inorganic electron donors can occur. Prime examples of such electron donors are waste organics and sulfides. At the cathode, an electron acceptor such as oxygen or nitrate can be reduced. The anode and the cathode are connected through an electrical circuit. If electrical power is harvested from this circuit, the system is called a Microbial Fuel Cell; if electrical power is invested, the system is called a Microbial Electrolysis Cell. The overall framework of bio-energy and bio-fuels is discussed. A number of chapters discuss the basics – microbiology, microbial ecology, electrochemistry, technology and materials development. The book continues by highlighting the plurality of processes based on BES technology already in existence, going from wastewater based reactors to sediment based bio-batteries. The integration of BESs into existing water or process lines is discussed. Finally, an outlook is provided of how BES will fit within the emerging biorefinery area.
Metal Nanoparticles In Microbiology
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Author : Mahendra Rai
language : en
Publisher: Springer Science & Business Media
Release Date : 2011-04-02
Metal Nanoparticles In Microbiology written by Mahendra Rai and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-04-02 with Science categories.
Following an introduction to biogenic metal nanoparticles, this book presents how they can be biosynthesized using bacteria, fungi and yeast, as well as their potential applications in biomedicine. It is shown that the synthesis of nanoparticles using microbes is eco-friendly and results in reproducible metal nanoparticles of well-defined sizes, shapes and structures. This biotechnological approach based on the process of biomineralization exploits the effectiveness and flexibility of biological systems. Chapters include practical protocols for microbial synthesis of nanoparticles and microbial screening methods for isolating a specific nanoparticle producer as well as reviews on process optimization, industrial scale production, biomolecule-nanoparticle interactions, magnetosomes, silver nanoparticles and their numerous applications in medicine, and the application of gold nanoparticles in developing sensitive biosensors.
Liquid Cell Electron Microscopy
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Author : Frances M. Ross
language : en
Publisher: Cambridge University Press
Release Date : 2017
Liquid Cell Electron Microscopy written by Frances M. Ross and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with Science categories.
2.6.2 Electrodes for Electrochemistry
Microbial Biotechnology
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Author : Rajesh Arora
language : en
Publisher: CABI
Release Date : 2012
Microbial Biotechnology written by Rajesh Arora and has been published by CABI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Biomass energy categories.
This book focuses on two key issues confronting humanity, viz., energy and environment. There is a need to devise strategies for protecting the environment, at the same time adequately meeting the ever-growing energy needs of the world. Harnessing the power of microbes is one step towards finding cheap, green and sustainable solutions to the problems of energy and environment. The book is divided into eight major topics. These topics include emerging trends in microbial biotechnology, harnessing sustainable energy sources from microorganisms, mechanistics of bioenergy production, bioenergy from wastes and pollutant removal, microalgae for biofuels, bioremediation technologies for petroleum hydrocarbons, polycyclic aromatic hydrocarbons and xenobiotics, bioremediation of nuclear wastes, and the role of extremophilic microorganisms in environmental cleanup.