Author : Ashok Kakkar
Publisher : MDPI
Page : 293 pages
File Size : 14,40 MB
Release : 2018-12-12
Category : Science
ISBN : 3038973785
This book is a printed edition of the Special Issue "Dendrimers: A Themed Issue in Honor of Professor Donald A. Tomalia on the Occasion of His 80th Birthday" that was published in Molecules
Author : Ashok Kakkar
Publisher :
Page : pages
File Size : 50,79 MB
Release : 2018
Category :
ISBN : 9783038973799
Dendrimers have firmly established their space in the macromolecular field since their first discovery in 1978. These monodispersed and hyperbranched macromolecules present unique properties with demonstrated potential in varied scientific disciplines. Dr. Donald A Tomalia is one of the pioneers in this area whose name is synonym for polyamidoamine (PAMAM) dendrimers, one of the most extensively investigated macromolecular architectures. In this monograph, his colleagues and friends celebrate Don's achievements and contributions to the field, on the occasion of his 80th birthday in 2018, which also coincides with the 40th anniversary of the first report on dendrimers. It provides the reader with excellent reviews on different aspects of dendritic architectures, followed by research articles that explore the state-of-the-art in synthesis, properties and varied applications, including in biology. Collectively, it provides scientists just beginning their careers, as well as firmly established ones, with the pulse of the field and inspiration to continue to explore these intriguing macromolecules.
Author : Sulaiman Khalifeh
Publisher : Elsevier
Page : 617 pages
File Size : 21,49 MB
Release : 2020-04-01
Category : Technology & Engineering
ISBN : 192788568X
Polymers in Organic Electronics: Polymer Selection for Electronic, Mechatronic, and Optoelectronic Systems provides readers with vital data, guidelines, and techniques for optimally designing organic electronic systems using novel polymers. The book classifies polymer families, types, complexes, composites, nanocomposites, compounds, and small molecules while also providing an introduction to the fundamental principles of polymers and electronics. Features information on concepts and optimized types of electronics and a classification system of electronic polymers, including piezoelectric and pyroelectric, optoelectronic, mechatronic, organic electronic complexes, and more. The book is designed to help readers select the optimized material for structuring their organic electronic system.Chapters discuss the most common properties of electronic polymers, methods of optimization, and polymeric-structured printed circuit boards. The polymeric structures of optoelectronics and photonics are covered and the book concludes with a chapter emphasizing the importance of polymeric structures for packaging of electronic devices. - Provides key identifying details on a range of polymers, micro-polymers, nano-polymers, resins, hydrocarbons, and oligomers - Covers the most common electrical, electronic, and optical properties of electronic polymers - Describes the underlying theories on the mechanics of polymer conductivity - Discusses polymeric structured printed circuit boards, including their rapid prototyping and optimizing their polymeric structures - Shows optimization methods for both polymeric structures of organic active electronic components and organic passive electronic components
Author : Anil K. Sharma
Publisher : CRC Press
Page : 406 pages
File Size : 38,16 MB
Release : 2018-07-27
Category : Medical
ISBN : 135136068X
With chapters from highly skilled, experienced, and renowned scientists and researchers from around the globe, Dendrimers for Drug Delivery provides an abundance of information on dendrimers and their applications in the field of drug delivery. The volume begins with an introduction to dendrimers, summarizing dendrimer applications and the striking features of dendrimers. It goes on to present the details of usual properties, structure, classification, and methods of synthesis, with relevant examples. The toxicity of dendrimers is also discussed. The chapter authors provide an exhaustive amount of information about dendrimers and their biomedical applications, including biocompatibility and toxicity aspects, a very useful feature. This informative volume will be valuable resource that will help readers to create products derived from dendrimers and navigate through the regulatory, manufacturing, and quality control hurdles. It will be an important resource for researchers, scientists, upper-level students, and industry professionals.
Author : Barbara Klajnert
Publisher :
Page : 0 pages
File Size : 27,60 MB
Release : 2007
Category : Dendrimers in medicine
ISBN : 9781600216640
The dendrimer is a common name of polymers which are characterised by a specific structure, although their chemical composition can be very different. Dendrimers display several characteristics which distinguish them from linear polymers. All dendrimers are synthesised by attaching branched monomers to the central core molecule. Monomers are attached layer by layer. As a result of such a synthesis, dendrimers posses plenty of terminal, reactive groups on their surface and empty internal cavities. Both of these features can be utilised. Soon after the first synthesis in mid-1980's, dendrimers have become interesting and promising molecules for pharmaceutical and technical aims. The last years brought many new facts about dendrimers impact on biological systems. Both, general toxic studies, as well as detailed research devoted to particular cellular compounds, as DNA or lipid bilayer, were carried out. New types of dendrimers were synthesised and new applications appeared.
Author : J. Simon
Publisher : Springer Science & Business Media
Page : 302 pages
File Size : 15,75 MB
Release : 2012-12-06
Category : Technology & Engineering
ISBN : 3642700128
During the past thirty years considerable efforts have been made to design the synthesis and the study of molecular semiconductors. Molecular semiconductors - and more generally molecular materials - involve interactions between individual subunits which can be separately synthesized. Organic and metallo-organic derivatives are the basis of most of the molecular materials. A survey of the literature on molecular semiconductors leaves one rather confused. It does seem to be very difficult to correlate the molecular structure of these semiconductors with their experimental electrical properties. For inorganic materials a simple definition delimits a fairly homogeneous family. If an inorganic material has a conductivity intermediate between that of an 12 1 1 3 1 1 insulator « 10- n- cm- ) and that of a metal (> 10 n- cm- ), then it is a semiconductor and will exhibit the characteristic properties of this family, such as junction formation, photoconductivity, and the photovoltaic effect. For molecular compounds, such simplicity is certainly not the case. A huge number of molecular and macromolecular systems have been described which possess an intermediate conductivity. However, the various attempts which have been made to rationalize their properties have, more often than not, failed. Even very basic electrical properties such as the mechanism of the charge carrier formation or the nature and the density ofthe dopants are not known in detail. The study of molecular semiconductor junctions is very probably the most powerful approach to shed light on these problems.
Author : Ajay Kumar Mishra
Publisher : Elsevier
Page : 308 pages
File Size : 35,28 MB
Release : 2022-01-22
Category : Technology & Engineering
ISBN : 0323852955
Bio-based Nanomaterials: Synthesis Protocols, Mechanisms and Applications summarizes recent developments in biocompatible and biodegradable materials, including their properties, fabrication methods, synthesis protocols and applications. The extensive use of petrochemicals, rising levels of plastic waste and manufacturing of non-biodegradable materials is a major environmental problem across the globe. Bio-based nanomaterials offer potential alternatives to address these challenging issues. The book covers key bio-based nanomaterials - including chitin, starch and nanocellulose – detailing their core properties, associated fabrication methods and synthesis protocols. Later chapters look at the range of applications for bio-based nanomaterials, from food and agriculture to environmental and biomedical. This book offers a detailed reference for those interested in sustainable nanoscale materials, including materials scientists, biomedical engineers, environmental scientists, food and agriculture manufacturers and scientists. - Covers a range of available bio-based nanomaterials, including chitin, starch and nanocellulose - Details the properties and characteristics of each bio-based nanomaterial, focusing on biocompatibility and biodegradability of sustainable materials - Reviews the fabrication methods and synthesis protocols available, discussing the pros and cons of each
Author : Ullrich Scherf
Publisher : Springer Science & Business Media
Page : 331 pages
File Size : 13,98 MB
Release : 2008-07-29
Category : Technology & Engineering
ISBN : 3540687335
With this collection of short review papers we would like to present a broad overview of research on poly?uorenes and related heteroanalogues over the last two decades. The collection begins with papers on the synthesis of po- ?uorenesandrelatedpolyheteroarenes, thenreportsphotophysicalproperties of this class of conjugated polymers both at the ensemble and the single chain level, continues with a discussion of the rich solid state structures of poly?uorenes, and ?nally switches to device applications (e.g. in OLEDs). In addition, two chapters are devoted to de?ned oligo?uorenesas lowmolecular weight model systems forpoly?uorenes and also to degradation studies. We feel that this up-to-date collection will be very helpful to all polymer chemists and physicists, and will also aid graduate students interested in this fascinating and still growing area of research, since such a compact overview is only now available. All articles are presented by leading scientists in their ?elds, insuring state-of-the-art coverage of all relevant aspects. Together with the body of references this volume is meant to assist researchers in the daily lab routine. Moreover, Advances in Polymer Science, as an established series of high quality review papers, represents a very appropriate platform for our project.Wehopethatthisshortcollectionwillbeofgreatvaluebothforbeg- ners and established researchscientists inthe?eldofpoly?uorene research.
Author : Claude Grison
Publisher : Elsevier
Page : 102 pages
File Size : 29,92 MB
Release : 2015-08-19
Category : Science
ISBN : 0081004753
Reconquest of biodiversity; remediation of degraded and anthropic areas, prevention of environmental health risks; eco-innovation; Green industry ... The current French ambitions are closely related to an interdisciplinary approach to scientific ecology, all of which participate in the expected industrial renewal.Ecocatalysis explores the unusual combination of phytotechnologies adapted to pollution, ecological rehabilitation of polluted sites and enhancement of these processes through innovative green chemistry, all of which contribute to the development of scientific priorities; economic, ecological innovation and current environmental, of biomass conversion and transition from fossil fuels to renewable.
Author : Bharti Mackness
Publisher : Springer Science & Business Media
Page : 322 pages
File Size : 29,13 MB
Release : 2007-10-26
Category : Medical
ISBN : 1402065612
In September 2006 the 2nd International Conference on Paraoxonases took place in Hajdúszoboszló, Hungary, bringing together the world's foremost experts in the field. The current book is a distillation of the plenary lectures which took place at the meeting, resulting in a comprehensive up-to-date, state-of-the-art review of current paraoxonase research. The book details a unique and novel enzyme whose physiological/pathological function(s) are just starting to be revealed.
