Modified Cyclodextrins: Scaffolds And Templates For Supramolecular Chemistry

Modified Cyclodextrins: Scaffolds And Templates For Supramolecular Chemistry
Author: Chris J Easton
Publisher: World Scientific
Total Pages: 305
Release: 1999-04-29
Genre: Science
ISBN: 1911298860

Through modification, the natural cyclodextrins are effective templates for the generation of a wide range of molecular hosts. This makes it possible to tailor a cyclodextrin host to a particular guest, to meet specific requirements in the host-guest complex, and opens the way to diverse new areas of supramolecular chemistry. Metallocyclodextrins, rotaxanes and catenanes, as well as surface monolayers of modified cyclodextrins, are readily obtained. The native cyclodextrins serve as scaffolds on which functional groups and other substituents can be assembled, with controlled geometry. This results in substantially improved molecular recognition and procedures for chemical separation, including enantiomer discrimination, through guest binding. Access to the gamut of functional groups greatly expands the utility of cyclodextrins in chemical synthesis and provides catalysts which mimic the entire range of enzymic activity. Modifications to the cyclodextrins also lead to a wide range of photochemistry of cyclodextrin complexes, through which the enhancement of guest reactivity occurs; in addition, light harvesting molecular devices and photochemical frequency switches may be constructed. In solution, modified cyclodextrins have been used to construct molecular reactors, as well as molecular, temperature and pH sensors. At surfaces, they form semipermeable membranes and sensor electrodes. Such exciting fields of chemistry, made possible only through modifications to the natural cyclodextrins, are the subject of this book.

Modified Cyclodextrins

Modified Cyclodextrins
Author: Christopher J. Easton
Publisher: Imperial College Press
Total Pages: 293
Release: 1999-01-01
Genre: Science
ISBN: 9781860941443

Through modification, the natural cyclodextrins are effective templates for the generation of a wide range of molecular hosts. This makes it possible to tailor a cyclodextrin host to a particular guest, to meet specific requirements in the host -- guest complex, and opens the way to diverse new areas of supramolecular chemistry. Metallocyclodextrins, rotaxanes and catenanes, as well as surface monolayers of modified cyclodextrins, are readily obtained. The native cyclodextrins serve as scaffolds on which functional groups and other substituents can be assembled, with controlled geometry. This results in substantially improved molecular recognition and procedures for chemical separation, including enantiomer discrimination, through guest binding. Access to the gamut of functional groups greatly expands the utility of cyclodextrins in chemical synthesis and provides catalysts which mimic the entire range of enzymic activity. Modifications to the cyclodextrins also lead to a wide range of photochemistry of cyclodextrin complexes, through which the enhancement of guest reactivity occurs; in addition, light harvesting molecular devices and photochemical frequency switches may be constructed. In solution, modified cyclodextrins have been used to construct molecular reactors, as well as molecular, temperature and pH sensors. At surfaces, they form semipermeable membranes and sensor electrodes. Such exciting fields of chemistry, made possible only through modifications to the natural cyclodextrins, are the subject of this book.

Streamlining Free Radical Green Chemistry

Streamlining Free Radical Green Chemistry
Author: V. Tamara Perchyonok
Publisher: Royal Society of Chemistry
Total Pages: 804
Release: 2012
Genre: Science
ISBN: 1849733325

This practical, concise guide showcases the sustainable methods offered by green free radical chemistry and summarizes the fundamental science involved.

Handbook of Polymers for Pharmaceutical Technologies, Biodegradable Polymers

Handbook of Polymers for Pharmaceutical Technologies, Biodegradable Polymers
Author: Vijay Kumar Thakur
Publisher: John Wiley & Sons
Total Pages: 610
Release: 2015-09-22
Genre: Technology & Engineering
ISBN: 1119041449

Polymers are one of the most fascinating materials of the present era finding their applications in almost every aspects of life. Polymers are either directly available in nature or are chemically synthesized and used depending upon the targeted applications.Advances in polymer science and the introduction of new polymers have resulted in the significant development of polymers with unique properties. Different kinds of polymers have been and will be one of the key in several applications in many of the advanced pharmaceutical research being carried out over the globe. This 4-partset of books contains precisely referenced chapters, emphasizing different kinds of polymers with basic fundamentals and practicality for application in diverse pharmaceutical technologies. The volumes aim at explaining basics of polymers based materials from different resources and their chemistry along with practical applications which present a future direction in the pharmaceutical industry. Each volume offer deep insight into the subject being treated. Volume 1: Structure and Chemistry Volume 2: Processing and Applications Volume 3: Biodegradable Polymers Volume 4: Bioactive and Compatible Synthetic/Hybrid Polymers

Advances in Organic Synthesis

Advances in Organic Synthesis
Author: Atta-ur-Rahman
Publisher: Bentham Science Publishers
Total Pages: 485
Release: 2013-01-10
Genre: Science
ISBN: 1608054756

Advances in Organic Synthesis is a book series devoted to the latest advances in synthetic approaches towards challenging structures. It presents comprehensive articles written by eminent authorities on different synthetic approaches to selected target molecules and new methods developed to achieve specific synthetic transformations. Contributions are written by eminent scientists and each volume is edited by an authority in the field. Advances in Organic Synthesis is essential for all organic chemists in the academia and industry who wish to keep abreast of rapid and important developments in the field.

Application of Nanotechnology in Water Research

Application of Nanotechnology in Water Research
Author: Ajay Kumar Mishra
Publisher: John Wiley & Sons
Total Pages: 562
Release: 2014-06-23
Genre: Science
ISBN: 1118496302

Details the water research applications of nanotechnology in various areas including environmental science, remediation, membranes, nanomaterials, and water treatment At the nano size, materials often take on unique and sometimes unexpected properties that result in them being ‘tuned’ to build faster, lighter, stronger, and more efficient devices and systems, as well as creating new classes of materials. In water research, nanotechnology is applied to develop more cost-effective and high-performance water treatment systems, as well as to provide instant and continuous ways to monitor water quality. This volume presents an array of cutting-edge nanotechnology research in water applications including treatment, remediation, sensing, and pollution prevention. Nanotechnology applications for waste water research have significant impact in maintaining the long-term quality, availability, and viability of water. Regardless of the origin, such as municipal or industrial waste water, its remediation utilizing nanotechnology can not only be recycled and desalinized, but it can simultaneously detect biological and chemical contamination. Application of Nanotechnology in Water Research describes a broad area of nanotechnology and water research where membrane processes (nanofiltration, ultrafiltration, reverse osmosis, and nanoreactive membranes) are considered key components of advanced water purification and desalination technologies that remove, reduce, or neutralize water contaminants that threaten human health and/or ecosystem productivity and integrity. Various nanoparticles and nanomaterials that could be used in water remediation (zeolites, carbon nanotubes, self-assembled monolayer on mesoporous supports, biopolymers, single-enzyme nanoparticles, zero-valent iron nanoparticles, bimetallic iron nanoparticles, and nanoscale semiconductor photocatalysts) are discussed. The book also covers water-borne infectious diseases as well as water-borne pathogens, microbes, and toxicity approach.

A Practical Guide to Supramolecular Chemistry

A Practical Guide to Supramolecular Chemistry
Author: Peter J. Cragg
Publisher: John Wiley & Sons
Total Pages: 230
Release: 2005-11-04
Genre: Science
ISBN: 0470866543

A Practical Guide to Supramolecular Chemistry is an introductory manual of practical experiments for chemists with little or no prior experience of supramolecular chemistry. Syntheses are clearly presented to facilitate the preparation of acyclic and macrocyclic compounds frequently encountered in supramolecular chemistry using straightforward experimental procedures. Many of the compounds can be used to illustrate classic supramolecular phenomena, for which clear directions are given, or may be developed further as part of the reader's own research. The book also describes techniques commonly used in the analysis of supramolecular behaviour, including computational methods, with many detailed examples. An invaluable reference for students and researchers in the field embarking on supramolecular chemistry projects and looking for a 'tried and tested' route into the chemistry of key compounds. An introductory guide to practical syntheses focusing on supramolecular chemistry. Fully referenced introductions explain the historical and contemporary importance of each compound Supplementary website including 3D molecular structures, FAQ's about syntheses and suggestions for further experiments

Cyclodextrin Materials Photochemistry, Photophysics and Photobiology

Cyclodextrin Materials Photochemistry, Photophysics and Photobiology
Author: Abderrazzak Douhal
Publisher: Elsevier
Total Pages: 333
Release: 2006-09-20
Genre: Science
ISBN: 0080463746

Cyclodextrin Materials Photochemistry, Photophysics and Photobiology provides to the scientific community the state-of-the art on photochemistry, photophysics and photobiology of cyclodextrin complexes in one book, and the chapters material will trigger further research in applied science connected to these small nanocapsules.The chapters contain a large number of information of value not only to readers working in the field of cyclodextrins, but also to researchers working on related areas like those of supramolecular chemistry, nanochemistry, and in general in nano- and biotechnology.* 14 Chapters reviewed by specialists working in the field* Chapters are ordered from simple to more complex systems and techniques providing developments in the field and its future* Of interest to a multidisciplinary audience working in confined nanostructures

Cyclodextrins: Preparation And Application In Industry

Cyclodextrins: Preparation And Application In Industry
Author: Zhengyu Jin
Publisher: World Scientific
Total Pages: 293
Release: 2018-01-10
Genre: Science
ISBN: 9813229675

Cyclodextrins are an extremely versatile class of chemicals highly prized for their ability to incorporate a plethora of organic, inorganic and biologic guest molecules into their hydrophobic cavities and form host-guest inclusion complexes. As excellent molecular receptors, they have long been exploited in many important industries such as food and agriculture, pharmaceuticals, cosmetics, textiles, analytical chemistry and enzyme mimics.Researchers, technicians and application specialists in many industries will appreciate this handy volume that systematically discusses how cyclodextrins are applied in their industries. Special attention is devoted to the preparation of inclusion complexes, novel properties of the resultant complexes, and details on applying those properties to industry.