Modified Cyclodextrins
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Modified Cyclodextrins Scaffolds And Templates For Supramolecular Chemistry
Author | : Chris J Easton,Stephen F Lincoln |
Publsiher | : World Scientific |
Total Pages | : 305 |
Release | : 1999-04-29 |
Genre | : Science |
ISBN | : 9781911298861 |
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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 for Chiral Separation
Author | : Weihua Tang,Siu-Choon Ng,Dongping Sun |
Publsiher | : Springer Science & Business Media |
Total Pages | : 266 |
Release | : 2013-05-24 |
Genre | : Science |
ISBN | : 9783642376481 |
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Modified Cyclodextrins for Chiral Separation offers a review of the latest advances in developing modified cyclodextrins as chiral selectors for various chromatographic and electromigration techniques. Over the years, many descriptions of chiral separation have appeared in academic journals and books, but most of them have been devoted to either the development of analytical methods and protocols or the summary of different chiral selectors, including cyclodextrins for chiral separation applications. This is in marked contrast to this volume which focuses on the research endeavors concerning the development of cyclodextrin derivatives specifically as either chiral mobile phases for capillary electrophoresis, or chiral stationary phases for various chromatographic techniques including gas chromatography, or high-performance liquid chromatography and supercritical fluid chromatography. The ongoing thread in this book is the synthesis of structurally-defined cyclodextrin derivatives and their applications in enantiomer separation by means of different analytical techniques. Modified Cyclodextrins for Chiral Separation is intended for those who are interested in expanding their knowledge of cyclodextrin chemistry and chiral separation, and in what cyclodextrin modification can be made to suit the needs of chiral selectors for different analytical techniques. It primarily focuses on the state-of-the-art cyclodextrin chemistry which is the basis for all chiral selectors used in these chiral separation techniques. Weihua Tang, PhD, is a professor at the Key Laboratory of Soft Chemistry and Functional Materials, Ministry of Education, Nanjing University of Science and Technology, China. Siu-Choon Ng, PhD, is a professor at the Division of Chemical and Biomedical Engineering, School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore. Dongping Sun, PhD, is a professor at the Key Laboratory of Soft Chemistry and Functional Materials, Ministry of Education, Nanjing University of Science and Technology, China.
Modified Cyclodextrins
Author | : Christopher J. Easton,Stephen F. Lincoln |
Publsiher | : Imperial College Press |
Total Pages | : 293 |
Release | : 1999-01-01 |
Genre | : Science |
ISBN | : 1860941443 |
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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.
Cyclodextrins and Their Complexes
Author | : Helena Dodziuk |
Publsiher | : John Wiley & Sons |
Total Pages | : 507 |
Release | : 2006-08-21 |
Genre | : Science |
ISBN | : 9783527608447 |
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Offering comprehensive and up-to-date know-how in one compact book, an experienced editor and top authors cover every aspect of these important molecules from molecular recognition to cyclodextrins as enzyme models. Chapters include reactivity and chemistry, chromatography, X-ray, NMR plus other physicochemical methods, as well as model calculations, rotaxane and catenane structures, and applications in the pharmaceutical industry. The book also discusses other applications such as in the cosmetics, toiletries, textile and wrapping industries, agrochemistry, electrochemical sensors, and devices. A must for everyone working with these substances.
Gas Chromatographic Enantiomer Separation with Modified Cyclodextrins
Author | : Wilfried A. König |
Publsiher | : Unknown |
Total Pages | : 184 |
Release | : 1992 |
Genre | : Science |
ISBN | : PSU:000021257223 |
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Cyclodextrins in Chromatography
Author | : Tibor Cserháti,Esther Forgacs |
Publsiher | : Royal Society of Chemistry |
Total Pages | : 166 |
Release | : 2007-10-31 |
Genre | : Science |
ISBN | : 9781847550675 |
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Cyclodextrins can form complexes with a wide variety of organic and inorganic compounds, a property which can prove useful when trying to separate complex mixtures. This book provides an up-to-date and critical evaluation of the application of cyclodextrins in many fields of chromatography (including thin layer, gas-liquid, high performance liquid and supercritical fluid chromatography; capillary electrophoresis; and isotacophoresis). Whilst mainly practical in nature, the book also looks briefly at the theoretical background for the various techniques. Any professional working with chromatography will welcome this unique book as both a practical compilation of methods and a source of reference to the literature regarding the use and impact of cyclodextrins in chromatography.
Cyclodextrin Materials Photochemistry Photophysics and Photobiology
Author | : Abderrazzak Douhal |
Publsiher | : Elsevier |
Total Pages | : 340 |
Release | : 2006-09-20 |
Genre | : Science |
ISBN | : 0080463746 |
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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
Author | : Wanda Sliwa,Tomasz Girek |
Publsiher | : John Wiley & Sons |
Total Pages | : 334 |
Release | : 2017-04-10 |
Genre | : Science |
ISBN | : 9783527339808 |
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Authored by two experts working in this important field of research, the timely book covers the latest advances in the synthesis of cyclodextrins, their properties and important industrial applications. To this end, the authors describe covalent and non-covalent assemblies, cyclodextrin inclusion complexes, cyclodextrin polymers, and modified cyclodextrins, resulting in an up-to-date overview of cyclodextrin chemistry. An invaluable reference for organic and polymer chemists in academia as well as those researchers in industry working in polymer, supramolecular and pharmaceutical chemistry, as well as food, textile and cosmetic science.