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Synthesis And Characterization Of Stimuli Responsive Microgels Based On Polyglycidolblock Copolymers
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Book Synopsis Synthesis and Characterization of Stimuli-responsive Microgels Based on Poly(glycidol)block Copolymers by : Sebastian Mendrek
Download or read book Synthesis and Characterization of Stimuli-responsive Microgels Based on Poly(glycidol)block Copolymers written by Sebastian Mendrek and published by . This book was released on 2006 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthesis and Characterization of Stimuli-responsive Microgels Based on Poly(glycidol)block Copolymers by :
Download or read book Synthesis and Characterization of Stimuli-responsive Microgels Based on Poly(glycidol)block Copolymers written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: New water soluble, attainable to ATRP polymerization Cl-terminated poly(glycidol) macroinitiators were prepared by modification of (Omega)-hydroxyl group of poly(glycidol acetal) using 2-chloropropionyl chloride fallowed by selective acidic deprotection of acetal groups. The obtained macroinitiators of different molar masses were successfully employed in ATRP of NIPAM and 4VP to give well-defined stimuli sensitive block copolymers of targeted molar ratio of blocks. The results obtained from light scattering methods showed formation of stable aggregates upon stimuli (pH or temperature) by all the obtained polymers. Additionally, photocrosslinkable block copolymers of glycidol and NIPAM having incorporated moieties of chromophore (2-(dimethyl maleinimido)-N-ethyl-acryl amide) were prepared using macroinitiator technique and used to synthesis of temperature sensitive microgels. Conjunction points have been successfully formed by UV irradiation of polymer water solution above cloud point. The influence of such parameters like block ratio, block length, amount of chromophore, concentration, irradiation time, temperature and heating rate on the properties of obtained microgels was investigated. The obtained core-shell structures were stable under critical conditions and showed continuous volume phase separation process upon increase of temperature, fully reversible and reproducible (no hysteresis effect). Thus, the proposed method not only gave the opportunity to control size or swelling degree of microgels, but also diminished gradient in crosslinking density (random chromophore distribution in polymer backbone), improved colloid stability (poly(glycidol) shell) and completely eliminated additives (surfactants, initiators, stabilizers).
Book Synopsis Stimuli-Responsive Gels by : Dirk Kuckling
Download or read book Stimuli-Responsive Gels written by Dirk Kuckling and published by MDPI. This book was released on 2018-10-11 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "Stimuli-Responsive Gels" that was published in Gels
Book Synopsis Synthesis and Characterization of Stimuli Responsive Block Copolymers, Self-assembly Behavior and Applications by : Michael Duane Determan
Download or read book Synthesis and Characterization of Stimuli Responsive Block Copolymers, Self-assembly Behavior and Applications written by Michael Duane Determan and published by . This book was released on 2006 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water-soluble stimuli responsive block copolymers are a rapidly emerging class of materials with great potential in biomedical and technological applications. In this work a novel class of pentablock copolymers are synthesized via atom transfer radical polymerization techniques and their stimuli-responsive self-assembly properties are characterized. Aqueous solutions of these materials are observed to form micelles and hydrogels in response to changes in both temperature and pH. Cryogenic transmission electron microscopy (cryo-TEM) and small angle neutron and X-ray scattering (SANS and SAXS) techniques are used to investigate the nanoscale structures formed by these pentablock copolymers in solution. The gel structure and mechanical properties are investigated with SANS and rheological techniques. The multi-responsive properties of these materials are utilized to formulate a stimuli responsive drug delivery formulation that exhibits thermoreversible gelation and pH dependent release rate of model drugs.
Book Synopsis Chemical Design of Responsive Microgels by : Andrij Pich
Download or read book Chemical Design of Responsive Microgels written by Andrij Pich and published by Springer. This book was released on 2010-10-15 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microgels by Precipitation Polymerization: Synthesis, Characterization, and Functionalization, by A. Pich and W. Richtering * Hydrogels in Miniemulsions, by K. Landfester and A. Musyanovych * Nano- and Microgels Through Addition Reactions of Functional Oligomers and Polymers, by K. Albrecht, M. Moeller, and J. Groll * Synthesis of Microgels by Radiation Methods, by F. Krahl and K.-F. Arndt * Microgels as Nanoreactors: Applications in Catalysis, by N. Welsch, M.s Ballauff, and Y. Lu
Book Synopsis Mambo mortale by : Landesstelle Jugendschutz
Download or read book Mambo mortale written by Landesstelle Jugendschutz and published by . This book was released on 1990 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microgels written by Wing-Fu Lai and published by Nova Science Publishers. This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the turn of the last century, significant advances have been documented in the literature on the design and engineering of microgels. Specialized reviews, each covering only a specific aspect of microgel development, are available; however, works that provide a comprehensive overview of the recent status of microgel research can hardly been found. The latter is important to the field as it can offer a broad view of the current situation and the possibilities for future microgel research. The objective of this book is to fill this gap by presenting a snapshot of the latest advances in the synthesis, characterization and applications of microgels. This book consists of three sections. The first section aims at providing an overview of the latest status of microgel research. Concepts in the current understandings of microgel fabrication and characterisation will be discussed. The second section is devoted to exploiting microgel properties and engineering techniques. The development of a diversity of gel systems, ranging from stimuli-responsive microgels and noncovalent crosslinking microgels to phenol formaldehyde-based aerogels, will be reviewed. The potential use of electrospray technologies to manipulate the microstructure of microgels will also be exploited. The last section intends to highlight the application potential of microgels, with a special focus on wastewater treatment, drug delivery, tissue engineering, gene delivery, bioimaging, and antifouling. It is hoped that this book will not only lay a foundation of knowledge and terminology to those interested in a future research career in the subject, but can also serve as a reference guide to researchers working in the field in terms of the concepts and techniques relating to microgel development.
Book Synopsis Chemical Design of Responsive Microgels by : Andrij Pich
Download or read book Chemical Design of Responsive Microgels written by Andrij Pich and published by Springer. This book was released on 2010-11-04 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microgels by Precipitation Polymerization: Synthesis, Characterization, and Functionalization, by A. Pich and W. Richtering * Hydrogels in Miniemulsions, by K. Landfester and A. Musyanovych * Nano- and Microgels Through Addition Reactions of Functional Oligomers and Polymers, by K. Albrecht, M. Moeller, and J. Groll * Synthesis of Microgels by Radiation Methods, by F. Krahl and K.-F. Arndt * Microgels as Nanoreactors: Applications in Catalysis, by N. Welsch, M.s Ballauff, and Y. Lu
Book Synopsis Stimulus-responsive Microgels by : Mallika Das
Download or read book Stimulus-responsive Microgels written by Mallika Das and published by . This book was released on 2008 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: Materials science today is a multidisciplinary effort comprising an accelerated convergence of diverse fields spanning the physical, applied, and engineering sciences. This diversity promises to deliver the next generation of advanced functional materials for a wide range of specific applications. In particular, the past decade has seen a growing interest in the development of nanoscale materials for sophisticated technologies. Aqueous colloidal microgels have emerged as a promising class of soft materials for multiple biotechnology applications. The amalgamation of physical, chemical and mechanical properties of microgels with optical properties of nanostructures in hybrid composite particles further enhances the capabilities of these materials. This work covers the general areas of responsive polymer microgels and their composites, and encompasses methods of fabricating microgel-based drug delivery systems for controlled and targeted therapeutic applications.The first part of this thesis is devoted to acquainting the reader with the fundamental aspects of the synthesis, functionalization and characteristic properties of stimulus-responsive microgels constructed from poly(N-isopropylacrylamide) (poly(NIPAm)) and other functional comonomers. In particular, the role of electrostatics on the swelling-deswelling transitions of polyampholyte microgels upon exposure to a range of environmental stimuli including pH, temperature, and salt concentration are discussed. The templated synthesis of bimetallic gold and silver nanoparticles in zwitterionic microgels is also described.The latter part of this thesis focuses on the rational development of microgel-based drug delivery systems for controlled and targeted drug release. Specifically, the development of a biofunctionalized, pH-responsive drug delivery system (DDS) is illustrated, and shown to effectively suppress cancer cells when loaded with an anticancer agent. In another chapter, the design of tailored hybrid particles that combine the thermal response of microgels with the light-sensitive properties of gold nanorods to create a DDS for photothermally-induced drug release is discussed. The photothermally-triggered volume transitions of hybrid microgels under physiological conditions are reported, and their suitability for the said application evaluated. In another component of this work, it is explicitly shown that electrostatic interactions were not needed to deposit gold nanorods on poly(NIPAm)-derived particles, thereby eliminating the need for incorporation of charged functional groups in the microgels that are otherwise responsible for large, undesirable shifts and broadening of the phase transition.
Book Synopsis New Hydrogel Forming Thermo-responsive Block Copolymers of Increasing Structural Complexity by : Anna Miasnikova
Download or read book New Hydrogel Forming Thermo-responsive Block Copolymers of Increasing Structural Complexity written by Anna Miasnikova and published by . This book was released on 2012 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Design, Synthesis and Characterization of Ion Responsive Microgels by : Gary M. Eichenbaum
Download or read book Design, Synthesis and Characterization of Ion Responsive Microgels written by Gary M. Eichenbaum and published by . This book was released on 1999 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthesis of Reactive Amphiphilic Copolymers, Polymer Nanoparticles and Microgels Based on Oligoglycidol Macromonomers by : Sascha Patrick Pargen
Download or read book Synthesis of Reactive Amphiphilic Copolymers, Polymer Nanoparticles and Microgels Based on Oligoglycidol Macromonomers written by Sascha Patrick Pargen and published by . This book was released on 2013-03 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Polymeric Biomaterials, Revised and Expanded by : Severian Dumitriu
Download or read book Polymeric Biomaterials, Revised and Expanded written by Severian Dumitriu and published by CRC Press. This book was released on 2001-11-29 with total page 1192 pages. Available in PDF, EPUB and Kindle. Book excerpt: Offering nearly 7000 references-3900 more than the first edition-Polymeric Biomaterials, Second Edition is an up-to-the-minute source for plastics and biomedical engineers, polymer scientists, biochemists, molecular biologists, macromolecular chemists, pharmacists, cardiovascular and plastic surgeons, and graduate and medical students in these disciplines. Completely revised and updated, it includes coverage of genetic engineering, synthesis of biodegradable polymers, hydrogels, and mucoadhesive polymers, as well as polymers for dermacosmetic treatments, burn and wound dressings, orthopedic surgery, artificial joints, vascular prostheses, and in blood contacting systems.
Book Synopsis Advanced Polymers in Medicine by : Francesco Puoci
Download or read book Advanced Polymers in Medicine written by Francesco Puoci and published by Springer. This book was released on 2014-12-02 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book provides an up-to-date overview of the diverse medical applications of advanced polymers. The book opens by presenting important background information on polymer chemistry and physicochemical characterization of polymers. This serves as essential scientific support for the subsequent chapters, each of which is devoted to the applications of polymers in a particular medical specialty. The coverage is broad, encompassing orthopedics, ophthalmology, tissue engineering, surgery, dentistry, oncology, drug delivery, nephrology, wound dressing and healing, and cardiology. The development of polymers that enhance the biocompatibility of blood-contacting medical devices and the incorporation of polymers within biosensors are also addressed. This book is an excellent guide to the recent advances in polymeric biomaterials and bridges the gap between the research literature and standard textbooks on the applications of polymers in medicine.
Download or read book Smart Polymers written by Igor Galaev and published by CRC Press. This book was released on 2007-07-25 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first book to tackle the application of smart polymers in bioseparation and bioprocessing, Smart Polymers: Applications in Biotechnology and Biomedicine broke new ground in this challenging field. Completely revised, updated, and following in the footsteps of its predecessor, the second edition is poised to take its place as a premier reference
Book Synopsis Tissue Engineering Using Ceramics and Polymers by : Aldo R. Boccaccini
Download or read book Tissue Engineering Using Ceramics and Polymers written by Aldo R. Boccaccini and published by Elsevier. This book was released on 2007-10-31 with total page 625 pages. Available in PDF, EPUB and Kindle. Book excerpt: Technology and research in the field of tissue engineering has drastically increased within the last few years to the extent that almost every tissue and organ of the human body could potentially be regenerated. With its distinguished editors and international team of contributors, Tissue Engineering using Ceramics and Polymers reviews the latest research and advances in this thriving area and how they can be used to develop treatments for disease states. Part one discusses general issues such as ceramic and polymeric biomaterials, scaffolds, transplantation of engineered cells, surface modification and drug delivery. Later chapters review characterisation using x-ray photoelectron spectroscopy and secondary ion mass spectrometry as well as environmental scanning electron microscopy and Raman micro-spectroscopy. Chapters in part two analyse bone regeneration and specific types of tissue engineering and repair such as cardiac, intervertebral disc, skin, kidney and bladder tissue. The book concludes with the coverage of themes such as nerve bioengineering and the micromechanics of hydroxyapatite-based biomaterials and tissue scaffolds. Tissue Engineering using Ceramics and Polymers is an innovative reference for professionals and academics involved in the field of tissue engineering. - An innovative and up-to-date reference for professionals and academics - Environmental scanning electron microscopy is discussed - Analyses bone regeneration and specific types of tisue engineering
Book Synopsis Biomedical Applications of Polymeric Materials and Composites by : Raju Francis
Download or read book Biomedical Applications of Polymeric Materials and Composites written by Raju Francis and published by John Wiley & Sons. This book was released on 2016-12-19 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: With its content taken from only the very latest results, this is an extensive summary of the various polymeric materials used for biomedical applications. Following an introduction listing various functional polymers, including conductive, biocompatible and conjugated polymers, the book goes on to discuss different synthetic polymers that can be used, for example, as hydrogels, biochemical sensors, functional surfaces, and natural degradable materials. Throughout, the focus is on applications, with worked examples for training purposes as well as case studies included. The whole is rounded off with a look at future trends.
