The History Of Cyclodextrins
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The History Of Cyclodextrins
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Author : Grégorio Crini
language : en
Publisher: Springer Nature
Release Date : 2020-09-29
The History Of Cyclodextrins written by Grégorio Crini and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-09-29 with Science categories.
This book presents the historical development of Cyclodextrins by scientists who have made outstanding contribution to the field. Cyclodextrins are safe, cage-like molecules that have found major applications in many industrial sectors such as medicine, food, agriculture, environment and chemistry.
Cyclodextrin Chemistry
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Author : M. L. Bender
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Cyclodextrin Chemistry written by M. L. Bender 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 2012-12-06 with Science categories.
Chemistry was at one time completely described in terms of collision theo ry, in which one molecule collided with another, sometimes producing reac tion. Then came the realization that enzymes which are highly efficient ca talysts, work by way of prior complexation, often stereospecific, which is then followed by chemical reaction. Thus, systems that exhibit "host-guest" relationships, i.e., that show complexing are being looked at an ever in creasing frequency. The cyclodextrins are the first and probably the most important example of compounds that exhibits complex formation. This is a book about the cyclodextrins. There are of course other compounds that exhibit "host-guest" relationships and thus bind other organic molecules, but so far they have not achieved the importance of the cyclodextrins. By their name it is obvious that cyclodextrins are cyclic compounds. The complexes that they form are therefore cyclic inclusion complexes. Because the complexes are cyclic in nature, complexation can be very strong, as op posed to 1t-complex, electrostatic, or apolar complexes in which complex formation is two-dimensional rather than three-dimensional. Cyclodextrins turn out to be excellent models of enzymes. This is proba bly not fortuitous because they were first sought since it was discovered that the principal binding in the enzyme chymotrypsin was a cyclic inclusion complex. Cyclodextrins can do more than form cyclic inclusion complexes, they can catalyze as well. But catalysis always occurs after complex formation.
Cyclodextrin Technology
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Author : J. Szejtli
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-04-17
Cyclodextrin Technology written by J. Szejtli 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 2013-04-17 with Science categories.
Cyclodextrins In Pharmaceutics Cosmetics And Biomedicine
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Author : Erem Bilensoy
language : en
Publisher: Wiley
Release Date : 2011-05-24
Cyclodextrins In Pharmaceutics Cosmetics And Biomedicine written by Erem Bilensoy and has been published by Wiley this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-05-24 with Science categories.
Cyclodextrins in Pharmaceutics, Cosmetics, and Biomedicine covers a wide range of knowledge on cyclodextrins, from an overview of molecular and supramolecular aspects of cyclodextrin physicochemistry, to the latest outcomes in cyclodextrin use and future possibilities in the employment of these systems. This book focuses on the derivatives and physicochemical and biological properties of cyclodextrins, and considers drug delivery through topical, mucosal, and oral via cyclodextrin complexes.
Advances In Chromatography
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Author : Nelu Grinberg
language : en
Publisher: CRC Press
Release Date : 2022-12-30
Advances In Chromatography written by Nelu Grinberg and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-12-30 with Science categories.
For six decades, scientists and researchers have relied on the Advances in Chromatography series for the most up-to-date information on a wide range of developments in chromatographic methods and applications. The clear presentation of topics and vivid illustrations for which this series has become known make the material accessible and engaging to analytical, biochemical, organic, polymer, and pharmaceutical chemists at all levels of technical skill. Describes the thermodynamics and kinetics underlying hydrophobic interaction chromatography of proteins. Outlines use of a kinetic model in the predictive modeling of evaporation processes that eliminates the need to know the composition and identity of the chemical constituents in the sample. Explores building and employing QSRR models in cyclodextrin modified high-performance liquid chromatography (HPLC). Reviews chemometric methods commonly paired with comprehensive 2D separations and key instrumental and preprocessing considerations.
Cyclodextrin
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Author : Poonam Arora
language : en
Publisher: BoD – Books on Demand
Release Date : 2018-04-18
Cyclodextrin written by Poonam Arora and has been published by BoD – Books on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-04-18 with Science categories.
The book is devoted to the highly versatile and potential ingredient Cyclodextrin, a family of cyclic oligosaccharides composed of ?-(1,4)-linked glucopyranose subunits. Its molecular complexation phenomena and negligible cytotoxic effects attribute toward its application such as in pharmaceuticals, cosmetics, food, agriculture, textile, separation process, analytical methods, catalysis, environment protection, and diagnostics. Efforts have also been made to concentrate on recent research outcomes along with future prospects of cyclodextrins to attract the interest of scientists from the industry and academia. The contributions of the authors are greatly acknowledged, without which this compilation would not have been possible.
Proceedings Of The First International Symposium On Cyclodextrins
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Author : J. Szejtli
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-11-11
Proceedings Of The First International Symposium On Cyclodextrins written by J. Szejtli 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 2013-11-11 with Science categories.
Cyclodextrins are galnlng industrial interest owing to their particu lar structure. These cyclic amyloses are commonly composed of 6, 7 or 8 (named a-, 8-, y-CD) glucose units. They undergo complexation with quite a large number of substances by molecular inclusion. Their potential for in dustrial application is substantiated by their ability to protect fragile substances from oxygen and UV, to delay the evolution of volatiles and to aid the ancillary processing of dangerous or volatile substances in powder ed form. Though a-, 8- and y-CD exhibit different inclusion specificity, 8-CD has found more attention than the others. This is due to the fact that most of the cyclodextrin producing enzymes known produce predominantly 8-CD. Fur thermore 8-CD is by far the least soluble form, leading to a relatively sim ple production and purification. Consequently 8-CD is already in production on an industrial scale [~] while a- and 8-CD are still more or less re garded as specialities. A further CD-producing enzyme has been found in the medium of K. pneu moniae [l], Since this CGT appeared to produce predominantly a-CD [~], it has been chosen to develop a process for the production of a-CD. MATERIALS AND METHODS Analysis of cyclodextrins: HPLC on Lichrosorb-NH . 10 ~m, with acetonitrile 2 water 65/35 per volume. Test for CGT activity: as described by Landert elsewhere in this Volume. Starch: potato starch as obtained from Blattmann, Wadenswil, Switzerland.
Cyclodextrin Fundamentals Reactivity And Analysis
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Author : Sophie Fourmentin
language : en
Publisher: Springer
Release Date : 2018-04-26
Cyclodextrin Fundamentals Reactivity And Analysis written by Sophie Fourmentin and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-04-26 with Science categories.
This book is the first volume of two volumes on cyclodextrins published in the series Environmental Chemistry for a Sustainable World. After a brief description of the cyclodextrin fundamentals, the first chapter by Grégorio Crini et al. provides an overview of cyclodextrin research during the last 5 years. The second chapter by Michal Řezanka discusses the synthesis of novel cyclodextrin systems by selective modifications. Then Eric Monflier et al. describes the synthesis of nanostructured porous materials based on cyclodextrins, and applications in heterogeneous catalysis and photocatalysis. The use of thermal analyses for assessing cyclodextrin inclusion complexes is reviewed in chapter 4 by Daniel Hădărugă et al. Experimental methods for measuring binding constants of cyclodextrin inclusion compounds are presented by David Landy. The second volume reviews cyclodextrin applications in medicine, food, environment and liquid crystals.
Cyclodextrin Materials Photochemistry Photophysics And Photobiology
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Author : Abderrazzak Douhal
language : en
Publisher: Elsevier
Release Date : 2006-09-20
Cyclodextrin Materials Photochemistry Photophysics And Photobiology written by Abderrazzak Douhal and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-09-20 with Science categories.
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 In Pharmacy
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Author : Karl-Heinz Frömming
language : en
Publisher: Springer Science & Business Media
Release Date : 1993-11-30
Cyclodextrins In Pharmacy written by Karl-Heinz Frömming 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 1993-11-30 with Medical categories.
Nearly three thousand papers and patents are dedicated to the actual or potential uses of cyclodextrins in pharmacy and pharmaceutical formulations. This is the first book written for pharmacists and pharmaceutical technologists which not only critically summarizes the enormous amount of literature available, but which can be used as a handbook when looking for solutions to practical problems. The fundamentals -- chemistry of cyclodextrins and their derivatives -- their physical and chemical properties are condensed to the most relevant items in Chapters 1 and 2. Chapter 3 deals with the adsorption, metabolism and toxicological properties of cyclodextrins. Chapter 4 explains the formulation, structure, composition and advantageous effects of the cyclodextrin inclusion complexes. Chapter 5 describes the methods for preparation and characterization of drug/cyclodextrin complexes. Chapters 6 and 7 are dedicated to the pharmacokinetics, biopharmaceutical and technological aspects of drug/CD complexes. Chapter 8 treats the application and effects of cyclodextrins in various drug formulations. The Appendix comprises a collection of recipes for any type of drug formulation. This book is aimed at those who use cyclodextrins in drug formulations, to improve the properties of existing drug formulations, or who want to prepare quite new formulations.