Download or read book Bioinspired Thymine Functionalized Polymeric Systems from Synthesis to Nano Applications written by Gagan Deep Kaur and published by . This book was released on 2013 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nature is an abundant source of elegant examples of synthesis of materials, and as in many other areas of science, polymer chemists have been drawing on bioinspiration to create sophisticated functional materials. Thymine, one of the nucleic bases in DNA, is well known for its ability to form relatively strong hydrogen bonds as well as its propensity to undergo reversible photo-dimerization upon UV exposure. The focus of this thesis is to develop a bioinspired thymine functionalized polymeric system based on hydrogen bonding and photo-crosslinking of thymine with potential nano applications such as in drug delivery and nanopatterned polymer films. In this research, thymine functionalized block copolymers were synthesized using controlled living radical polymerization. The block copolymers were used to prepare a stability enhanced core bound polymeric micelle system based on hydrogen bonding and photo-crosslinking of thymine. The stability of polymeric micelles was investigated in detail using various characterization techniques such UV-Vis spectroscopy, transmission electron microscopy, fluorescence spectroscopy and dynamic light scattering. Further to this, the chemical loading and release potential of polymeric micelles was investigated using suitable drugs (6-mercaptopurine and 6-thioguanine). The results demonstrated that hydrogen bonding of thymine plays an important role in the stability of micelles and can be exploited for chemical loading and release of encapsulated materials. Furthermore, it was found that photo-crosslinking can be used as a tool to tune the stability of polymeric micelles, and hence to control the release of encapsulated materials. The photo-crosslinking of thymine was also exploited to develop reversible polymers and crosslinked nanogels. Overall, these studies demonstrated the scope and versatility of incorporation of thymine in polymers in order to develop functional materials for various applications such as drug delivery systems, nanopatterned films, reversible polymers and nanogels.

Download or read book Bio inspired Polymers written by Nico Bruns and published by Royal Society of Chemistry. This book was released on 2016-10-14 with total page 613 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many key aspects of life are based on naturally occurring polymers, such as polysaccharides, proteins and DNA. Unsurprisingly, their molecular functionalities, macromolecular structures and material properties are providing inspiration for designing new polymeric materials with specific functions, for example, responsive, adaptive and self-healing materials. Bio-inspired Polymers covers all aspects of the subject, ranging from the synthesis of novel polymers, to structure-property relationships, materials with advanced properties and applications of bio-inspired polymers in such diverse fields as drug delivery, tissue engineering, optical materials and lightweight structural materials. Written and edited by leading experts on the topic, the book provides a comprehensive review and essential graduate level text on bio-inspired polymers for biochemists, materials scientists and chemists working in both industry and academia.

Download or read book Advances in Functionalized Polymer Nanocomposites written by Gautam Patel and published by Elsevier. This book was released on 2024-07-17 with total page 1122 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Functionalized Polymer Nanocomposites: From Synthesis to Applications presents a detailed review on the synthesis, fundamental chemistry, properties, and applications of these high-performance materials. The introductory chapter provides a brief overview of the various types of organic and inorganic nanofillers used for the synthesis of polymer nanocomposites. Emphasis is placed on their fundamental chemistry, processing methods, functionalization and/or surface modification strategies. The dispersion state and their specific interaction with polymer matrices is also discussed in detail, as well as characterization techniques for functionalized nanofillers and functionalized polymer nanocomposites, and their properties, and applications. The book will be a valuable reference source for scientists, engineers, and postgraduate students, working in the field of polymer science and technology, materials science and engineering, composites, and nanocomposites. Covers fabrication, processing, characterization, and properties of various functionalized polymer nanocomposites Explores usage in energy storage systems, biomedical fields, environmental remediation, catalysis, gas sensing, biosensing, and electromagnetic interference (EMI) shielding Provides information on lifecycle assessment and environmental and health impacts of these materials

Download or read book Bioinspired and Biomimetic Polymer Systems for Drug and Gene Delivery written by Zhongwei Gu and published by John Wiley & Sons. This book was released on 2015-03-09 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: Here, front-line researchers in the booming field of nanobiotechnology describe the most promising approaches for bioinspired drug delivery, encompassing small molecule delivery, delivery of therapeutic proteins and gene delivery. The carriers surveyed include polymeric, proteinaceous and lipid systems on the nanoscale, with a focus on their adaptability for different cargoes and target tissues. Thanks to the broad coverage of carriers as well as cargoes discussed, every researcher in the field will find valuable information here.

Download or read book Bio based and Bioinspired Polymer Systems Design Synthesis and Tailoring of Properties and Applications written by Axel T. Neffe and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Design Synthesis and Catalysis Applications of Bio Inspired Metal Containing Polymers written by Srinivas Thanneeru and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The quest for the construction of artificial enzyme models able to mimic the activity of metalloenzymes is lucrative research filed for many chemists. There have been considerable efforts in design and synthesize various bio-mimetic systems to achieve the enzymatic activity. One such enzyme mimicking system is to use of macromolecular environment such as polymers with the metal active sites has attracted tremendous interest and resulting in the formation of metal-containing polymers/metallopolymers. We believe that by integrating metal ions within the polymer frameworks using metal-ligand coordination will offer greater control over the choice of various functional groups, control of hydrophilicity/hydrophobicity and secondary coordination network offered by the polymer frameworks for the metal ions. These metal-containing polymers will be expected to serve as the better enzymatic models. The aim of this dissertation is to study the polymer promoted catalytic activity of novel metal-containing polymers. By taking the advantages of polymer synthesis methods, particularly, controlled free radical polymerization methods such as RAFT and ATRP, and post-polymerization methods, we prepared well-defined polymers with the desired functional groups. The metal ions were incorporated into the polymer network via metal-ligand coordination under dilute conditions to induce polymer cross-linking to yield metal-containing single chain polymer nanoparticles (M-SCNPs). These soft nano-sized polymeric nanoparticles were then used as enzymatic model systems for catalysis applications. In chapter 2 of this dissertation work, we explored the use of metallofoldamers containing Ni-thiolate co-factors in a folded polymer framework for the selective photoreduction of CO2. The catalysis results indicated that polymer framework promoted the activity of Ni active sites towards selective CO2 reduction to CO under photochemical conditions. In chapter 3, we demonstrated that Cu-containing SCNPs promoted the activity towards the selective hydroxylation reactions. The catalytic activity towards phenol substrates catalyzed Cu-SCNPs was studied and the results indicate that the selectivity was largely influenced by the dynamics of the folded polymer backbone. The unsaturation of coordination sites to Cu ions limits the cooperative catalysis. We solved this problem by designing a random copolymer having well-defined ligands with a coordination site for Cu-ions. We studied the polymer promoted cooperative O2 activation and how the catalytic efficiency was influenced by polymer flexibility and the mole fraction of Cu sites in copolymers which is described in chapter 4. Further extension of this work by introducing hydrophobic microenvironment for the Cu sites and how it will affect the catalytic activity was demonstrated in chapter 5.

Download or read book Single Chain Polymer Nanoparticles written by José A. Pomposo and published by John Wiley & Sons. This book was released on 2017-08-18 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: This first book on this important and emerging topic presents an overview of the very latest results obtained in single-chain polymer nanoparticles obtained by folding synthetic single polymer chains, painting a complete picture from synthesis via characterization to everyday applications. The initial chapters describe the synthetics methods as well as the molecular simulation of these nanoparticles, while subsequent chapters discuss the analytical techniques that are applied to characterize them, including size and structural characterization as well as scattering techniques. The final chapters are then devoted to the practical applications in nanomedicine, sensing, catalysis and several other uses, concluding with a look at the future for such nanoparticles. Essential reading for polymer and materials scientists, materials engineers, biochemists as well as environmental chemists.

Download or read book Effect of functionalized polymeric nanoparticles on biological systems written by Cornelia Loos and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Structural DNA Nanotechnology written by Nadrian C. Seeman and published by Cambridge University Press. This book was released on 2015 with total page 269 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by the founder of the field, this is a comprehensive and accessible introduction to structural DNA nanotechnology.

Download or read book Materials Development and Processing for Biomedical Applications written by Savaş Kaya and published by CRC Press. This book was released on 2022-04-05 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: Materials Development and Processing for Biomedical Applications focuses on various methods of manufacturing, surface modifications, and advancements in biomedical applications. This book examines in detail about five different aspects including, materials properties, development, processing, surface coatings, future perspectives and fabrication of advanced biomedical devices. Fundamental aspects are discussed to better understand the processing of various biomedical materials such as metals, ceramics, polymers, composites, etc. A wide range of surface treatments are covered in this book that will be helpful for the readers to understand the importance of surface treatments and their future perspectives. Additional Features Include: Examines various properties of biomedical materials at the beginning in several chapters which will enrich the fundamental knowledge of the readers. Discusses advancements in various fields of biomedical applications. Provides a glimpse of characterization techniques for the evaluation of material properties. Addresses biocompatibility, biocorrosion, and tribocorrosion. This book explores new and novel strategies for the development of materials and their biomedical applications. It will serve as a comprehensive resource for both students and scientists working in materials and biomedical sciences.

Download or read book Materials Nanoarchitectonics written by Katsuhiko Ariga and published by Elsevier. This book was released on 2023-12-15 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt: Materials Nanoarchitectonics: From Integrated Molecular Systems to Advanced Devices provides the latest information on the design and molecular manipulation of self-organized hierarchically structured systems using tailor-made nanoscale materials as structural and functional units. The book is organized into three main sections that focus on molecular design of building blocks and hybrid materials, formation of nanostructures, and applications and devices. Bringing together emerging materials, synthetic aspects, nanostructure strategies, and applications, the book aims to support further progress, by offering different perspectives and a strong interdisciplinary approach to this rapidly growing area of innovation. This is an extremely valuable resource for researchers, advanced students, and scientists in industry, with an interest in nanoarchitectonics, nanostructures, and nanomaterials, or across the areas of nanotechnology, chemistry, surface science, polymer science, electrical engineering, physics, chemical engineering, and materials science. Offers a nanoarchitectonic perspective on emerging fields, such as metal-organic frameworks, porous polymer materials, or biomimetic nanostructures Discusses different approaches to utilizing "soft chemistry" as a source for hierarchically organized materials Offers an interdisciplinary approach to the design and construction of integrated chemical nano systems Discusses novel approaches towards the creation of complex multiscale architectures

Download or read book Functionalized Nanomaterials for Catalytic Application written by Chaudhery Mustansar Hussain and published by John Wiley & Sons. This book was released on 2021-07-21 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt: Functionalized Nanomaterials for Catalytic Application

Download or read book Smart Nanomaterials for Bioencapsulation written by Guillermo R. Castro and published by Elsevier. This book was released on 2022-09-30 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: Smart Nanomaterials for Bioencapsulation focuses on the fundamentals, synthesis methods and matrix design for the encapsulation of drugs, drug release, food and nutraceuticals, mechanisms of nano- encapsulated drugs on liposomes, micelles, silica composites, carbon nanotubes, dendrimers, and protein inorganic nanohybrids. Providing detailed information on the encapsulation of food and drug derivatives, the book helps create new and modern approaches for both pharmaceutical and nutritional science. The target delivery of pharmacological agents, as well as food additives under various conditions is covered, including sections on systemic release of drug molecules, minimum loss at non-target sites, the accumulation of diseased tissue or organs, and more. Smart nanomaterial-based nanocarriers protect the loaded molecules from premature degradation in the biological environment and enhance bioavailability for cellular uptake. The tuned properties of smart nanomaterials, such as porosity, pore-volume, surface area-to-volume ratio, coating with inert and labile materials, and more help determine the in vivo performance of the bioencapsulated food and drug derivatives. Outlines the major design principles surrounding the encapsulation of drugs, drug release, food and nutraceuticals at the nanoscale Discusses the pros and cons of different bioencapsulation methods for different application areas Outlines the major challenges of applying nanobioencapsulation at an industrial scale

Download or read book Green Processes for Nanotechnology written by Vladimir A. Basiuk and published by Springer. This book was released on 2015-03-25 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides the state-of-the-art survey of green techniques in preparation of different classes of nanomaterials, with an emphasis on the use of renewable sources. Key topics covered include fabrication of nanomaterials using green techniques as well as their properties and applications, the use of renewable sources to obtain nanomaterials of different classes, from simple metal and metal oxide nanoparticles to complex bioinspired nanomaterials, economic contributions of nanotechnology to green and sustainable growth, and more. This is an ideal book for students, lecturers, researchers and engineers dealing with versatile (mainly chemical, biological, and medical) aspects of nanotechnology, including fabrication of nanomaterials using green techniques and their properties and applications.

Download or read book Functional Dyes written by Sung-Hoon Kim and published by Elsevier. This book was released on 2006-03-08 with total page 283 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the last 10 years organic dyes, traditionally used for coloring textiles and other materials, have become increasingly important in the hi-tech industries of electronics and optoelectronics. They can be used in optical data storage, new solar cells and biomedical sensors.Functional Dyes discusses the synthesis of these new, high-value dyes and pigments as well as their applications and performance. The chapters are arranged so that the reader logically advances from the fundamental concepts to more practical aspects of the technology in which they are used.In providing the reader with current information on functional dye chemistry, as well as important developments within the field, Functional Dyes is a valuable information source for dye and material chemists, researchers and graduates, who want a summary of the key advances in the field over the last 10 years and an authoritative view on future developments. * Provides a broad introduction to the science technology of the functional dye application* Reviews recent advances on synthesis and characteristics of the functional dyes and their applications* Is a valuable information source for dye and material chemists and researchers

Download or read book Biomimetic Polymers written by C.G. Gebelein and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: The term biomimetic is comparatively new on the chemical scene, but the concept has been utilized by chemists for many years. Furthermore, the basic idea of making a synthetic material that can imitate the func tions of natural materials probably could be traced back into antiquity. From the dawn of creation, people have probably attempted to duplicate or modify the activities of the natural world. (One can even find allusions to these attempts in the Bible; e. g. , Genesis 30. ) The term "mimetic" means to imitate or mimic. The word "mimic" means to copy closely, or to imitate accurately. Biomimetic, which has not yet entered most dictionaries, means to imitate or mimic some specific bio logical function. Usually, the objective of biomimetics is to form some useful material without the need of utilizing living systems. In a simi lar manner, the term biomimetic polymers means creating synthetic poly mers which imitate the activity of natural bioactive polymers. This is a major advance in polymer chemistry because the natural bioactive polymers are the basis of life itself. Thus, biomimetic polymers imitate the life process in many ways. This present volume delineates some of the recent progress being made in this vast field of biomimetic polymers. Chemists have been making biomimetic polymers for more than fifty years, although this term wasn't used in the early investigations.

Download or read book Carbon Nanotube Reinforced Polymers written by Roham Rafiee and published by Elsevier. This book was released on 2017-10-06 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon Nanotube-Reinforced Polymers: From Nanoscale to Macroscale addresses the advances in nanotechnology that have led to the development of a new class of composite materials known as CNT-reinforced polymers. The low density and high aspect ratio, together with their exceptional mechanical, electrical and thermal properties, render carbon nanotubes as a good reinforcing agent for composites. In addition, these simulation and modeling techniques play a significant role in characterizing their properties and understanding their mechanical behavior, and are thus discussed and demonstrated in this comprehensive book that presents the state-of-the-art research in the field of modeling, characterization and processing. The book separates the theoretical studies on the mechanical properties of CNTs and their composites into atomistic modeling and continuum mechanics-based approaches, including both analytical and numerical ones, along with multi-scale modeling techniques. Different efforts have been done in this field to address the mechanical behavior of isolated CNTs and their composites by numerous researchers, signaling that this area of study is ongoing. Explains modeling approaches to carbon nanotubes, together with their application, strengths and limitations Outlines the properties of different carbon nanotube-based composites, exploring how they are used in the mechanical and structural components Analyzes the behavior of carbon nanotube-based composites in different conditions