Download or read book Photosensitizing Compounds written by Gregory R. Bock and published by John Wiley & Sons. This book was released on 2008-04-30 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: Certain organic compounds can become toxic to biological tissue when activated by light. Many medical applications of this effect have been studied over the past twenty years, and This symposium brings together chemists, biologists, and clinicians to discuss the basic chemistry of the sensitizing compounds, their biological effects, and clinical applications in treatments of various cancers and skin disorders.

Download or read book Photosensitizers in Medicine Environment and Security written by Tebello Nyokong and published by Springer Science & Business Media. This book was released on 2012-01-02 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses the synthesis of photosensitizers, the main emphasis being on the new methods of synthesis such as microwave, sonochemistry and the use of ionic liquids. It also addresses the photochemistry and photophysics of the photosensitizers alone and in combination with nanoparticles, the use of the photosensitizers in environmental control, safety and medicine. It discusses the common structures of the photosensitizers which are beneficial to these applications.

Download or read book Photobiology in Medicine written by Giulo Jori and published by Springer Science & Business Media. This book was released on 2013-12-11 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt: Man has recognised an association of light with life and medicine for over 3000 years. Today the major challenges to this topic include the elucidation of photochemical reactions involved in photobiology at the molecular level. This includes the use of a variety of modem probing techniques that directly measures the reactivity of excited states and free radicals involved in biological reactions. This text-book is based on such an approach and has arisen from some of the lectures delivered at the NATO ASI held at Hotel Capo Caccia near the Centre for Advanced Research in Photobiology (CARP) in Sardegia, Italy. The ASI took place from 30 September -13 October 1993 and involved a total membership of 90. The book, like the NATO ASI itself, is divided into four themes starting with fundamental aspects and ending with complex medically related systems. Thus Theme 1 covers aspects of the underlying photophysics and photochemistry with particular emphasis on modem experimental techniques to study molecular mechanisms of biological processes. Theme 2 applies many of these fundamental studies to the chemical reactions of most relevance to photobiology and photomedicine such as photo-addition, -isomerization, -sensitization and -pigmentation. The third and fourth Themes deal with the deleterious and therapeutic aspects of light with particular emphasis on the use of Photo-Dynamic Therapy (PDT) to treat cancer and on viral and micro bioi infections.

Download or read book Nanostructures for Antimicrobial Therapy written by Anton Ficai and published by Elsevier. This book was released on 2017-05-29 with total page 724 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanostructures for Antimicrobial Therapy discusses the pros and cons of the use of nanostructured materials in the prevention and eradication of infections, highlighting the efficient microbicidal effect of nanoparticles against antibiotic-resistant pathogens and biofilms. Conventional antibiotics are becoming ineffective towards microorganisms due to their widespread and often inappropriate use. As a result, the development of antibiotic resistance in microorganisms is increasingly being reported. New approaches are needed to confront the rising issues related to infectious diseases. The merging of biomaterials, such as chitosan, carrageenan, gelatin, poly (lactic-co-glycolic acid) with nanotechnology provides a promising platform for antimicrobial therapy as it provides a controlled way to target cells and induce the desired response without the adverse effects common to many traditional treatments. Nanoparticles represent one of the most promising therapeutic treatments to the problem caused by infectious micro-organisms resistant to traditional therapies. This volume discusses this promise in detail, and also discusses what challenges the greater use of nanoparticles might pose to medical professionals. The unique physiochemical properties of nanoparticles, combined with their growth inhibitory capacity against microbes has led to the upsurge in the research on nanoparticles as antimicrobials. The importance of bactericidal nanobiomaterials study will likely increase as development of resistant strains of bacteria against most potent antibiotics continues. Shows how nanoantibiotics can be used to more effectively treat disease Discusses the advantages and issues of a variety of different nanoantibiotics, enabling medics to select which best meets their needs Provides a cogent summary of recent developments in this field, allowing readers to quickly familiarize themselves with this topic area

Download or read book The Science of Photobiology written by Kendric C. Smith and published by Springer Science & Business Media. This book was released on 2013-03-08 with total page 429 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first edition of The Science of Photobiology was published in 1977, and was the first textbook to cover all of the major areas of photobiology. The science of photobiology is currently divided into 14 subspecialty areas by the American Society for Photobiology. In this edition, however, the topics of phototechnology and spectroscopy have been com bined in a new chapter entitled "Photophysics." The other subspecialty areas remain the same, i.e., Photochemistry, Photosensitization, UV Radiation Effects, Environmental Photobiology, Photomedicine, Circadian Rhythms, Extraretinal Photoreception, Vision, Photomorphogenesis, Photomovement, Photosynthesis, and Bioluminescence. This book has been written as a textbook to introduce the science of photobiology to advanced undergraduate and graduate students. The chapters are written to provide a broad overview of each topic. They are designed to contain the amount of information that might be presented in a one-to two-hour general lecture. The references are not meant to be exhaustive, but key references are included to give students an entry into the literature. Frequently a more recent reference that reviews the literature will be cited rather than the first paper by the author making the original discovery. The chapters are not meant to be a repository of facts for research workers in the field, but rather are concerned with demon strating the importance of each specialty area of photobiology, and documenting its relevance to current and/or future problems of man.

Download or read book Library of Congress Subject Headings written by Library of Congress and published by . This book was released on 2013 with total page 1624 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Library of Congress Subject Headings written by Library of Congress. Cataloging Policy and Support Office and published by . This book was released on 2009 with total page 1596 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Photodynamic Therapy written by Barbara W. Henderson and published by CRC Press. This book was released on 2020-07-24 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering all aspects of photodynamic therapy, 70 expert contributors from the fields of photochemistry, photobiology, photophysics, pharmacology, oncology and surgery, provide multidisciplinary discussions on photodynamic therapy - a rapidly-developing approach to the treatment of solid tumours.;Photodynamic Therapy: Basic Principles and Clinical Applications describes the molecular and cellular effects of photodynamic treatment; elucidates the complex events leading to photodynamics tissue destruction, particularly vascular and inflammatory responses; discusses the principles of light penetration through tissues and optical dosimetry; examines photosensitizer pharmacology and delivery systems; reviews in detail photosensitizer structure-activity relationships; illustrates novel devices that aid light dosimetry and fluorescence detection; and extensively delineates clinical applications, including early diagnosis and treatment.;A comprehensive and up-to-date reference, this book should be useful for oncologists, pharmacologists, surgeons, photobiologists, optical engineers, laser technicians, biologists, physicists, chemists and biochemists involved in cancer research, as well as graduate-level students in these disciplines.

Download or read book Investigation of the Photosensitizing Activity of 1 4 dihydropyridine Compounds in Rat Smooth Muscle written by Miguel Martin-Caraballo and published by . This book was released on 1995 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book P Z written by Library of Congress. Office for Subject Cataloging Policy and published by . This book was released on 1990 with total page 1644 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Library of Congress Subject Headings written by Library of Congress. Office for Subject Cataloging Policy and published by . This book was released on 1990 with total page 1660 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Applications of Nanoscience in Photomedicine written by Michael R. Hamblin and published by Elsevier. This book was released on 2015-02-17 with total page 573 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanoscience has become one of the key growth areas in recent years. It can be integrated into imaging and therapy to increase the potential for novel applications in the field of photomedicine. In the past commercial applications of nanoscience have been limited to materials science research only, however, in recent years nanoparticles are rapidly being incorporated into industrial and consumer products. This is mainly due to the expansion of biomedical related research and the burgeoning field of nanomedicine. Applications of Nanoscience in Photomedicine covers a wide range of nanomaterials including nanoparticles used for drug delivery and other emerging fields such as optofluidics, imaging and SERS diagnostics. Introductory chapters are followed by a section largely concerned with imaging, and finally a section on nanoscience-enabled therapeutics. Covers a comprehensive up-to-date information on nanoscience Focuses on the combination of photomedicine with nanotechnology to enhance the diversity of applications Pioneers in the field have written their respective chapters Opens a plethora of possibilities for developing future nanomedicine Easy to understand and yet intensive coverage chapter by chapter

Download or read book Molecular Photobiology written by Kendric C. Smith and published by Elsevier. This book was released on 2013-10-22 with total page 249 pages. Available in PDF, EPUB and Kindle. Book excerpt: Molecular Photobiology: Inactivation and Recovery describes the deleterious photochemical reactions occurring in biological systems. This book is composed of 10 chapters that specifically tackle light interactions in the ultraviolet region of the spectrum resulting to damaged proteins and nucleic acids in living systems. This book deals first with the kinds of photochemical reactions that can occur and the possible effects of photochemistry on molecular, cellular, and organismal levels. The succeeding chapters highlight the principle of recovery mechanisms, wherein evidence shows that cells can repair their damaged genetic material, and thus recover from the otherwise inactivating effects of light. The remaining chapters are devoted to the comparison and contrast of some biological effects of ionizing radiation and those of ultraviolet radiation. This book is of value to molecular photobiologists, photochemists, biochemists, and radiation scientists and researchers.

Download or read book Chemicals and the Future of Man written by United States. Congress. Senate. Committee on Government Operations. Subcommittee on Executive Reorganization and Government Research and published by . This book was released on 1971 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Chemicals and the Future of Man written by United States. Congress. Senate. Government Operations and published by . This book was released on 1971 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Photobiology written by E. Riklis and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 1028 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is not always the case that the subject of a scientific book and its relevance to everyday li fe are so timely. Photobiology and its si ster subject Radiobiology are now a must for understanding the environment we live in and the impact light, ultraviolet light, and radiation have on all aspects of our life. Photobiology is a true interdisciplinary field. Photobiology research plays a direct role in diverse fields, and a glance at the topics of the symposia covered in this book by over 100 articles shows the breadth and depth of knowledge acquired in fundamental research and its impact on the major issues and applied problems the world is facing. Half a century of photobiology research brought about an understanding of the importance of light to life, both as a necessary source of energy and growth as weIl as its possible dangers. Research in photochemistry and photobiology led to the discoveries of ceIlular repair mechanisms of UV induced damages to DNA and this led to understanding of the effects of hazardous environmental chemieals and mutagenecity , and to the development of genetic engineering. This topic was given due emphasis in several symposia and chapters in this book.

Download or read book Synthesis and Photosensitizing Properties of Sublimable Rhenium Diimine Complexes written by Hei-Ling Wong and published by Open Dissertation Press. This book was released on 2017-01-27 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Synthesis and Photosensitizing Properties of Sublimable Rhenium Diimine Complexes" by Hei-ling, Wong, 黃喜玲, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: Abstract of thesis entitled SYNTHESIS AND PHOTOSENSITIZING PROPERTIES OF SUBLIMABLE RHENIUM DIIMINE COMPLEXES Submitted by Wong Hei Ling for the degree of Doctor of Philosophy at The University of Hong Kong in January 2007 Two series of rhenium diimine complexes based on bis(phenylimino)acenaphthene-derived and benzothiazole-derived ligands were synthesized and their uses in fabricating highly efficient photovoltaic devices are presented. The electronic absorption bands, highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) energy levels of these rhenium complexes could be modified easily by changing the structure of ligands. These rhenium complexes were used as the photosensitizers in photovoltaic cells. A series of multilayer bulk heterojunction photovoltaic devices with the device structure ITO/CuPc/Complex: C /C /Al (ITO = indium tin oxide coated glass, 60 60 and CuPc = copper phthalocyanine) based on different rhenium complex photosensitizers co-deposited with C in the active layer was fabricated. ITO 60 serves as the anode and Al as the cathode. CuPc and C were used as the hole and 60 electron transport materials, respectively. The complexes are thermally stable and can be processed by thermal evaporation under high vacuum. Multilayer thin films with very good optical quality and smooth surface morphology were prepared. The effects of varying the hole transport material, thickness of hole transport material, rhenium complex photosensitizer, mixed layer thickness, active layer composition, and light intensity to the performance of the photovoltaic cells were studied systematically. It was found that the short-circuit current (I ) and SC fill-factor (FF) could be significantly affected by varying the device configuration. However no significant change in the open-circuit voltage (V ) was observed., OC For the devices fabricated from rhenium diimine complexes based on bis(phenylimino)acenaphthene-derived ligands, it was found that the highest power conversion efficiency (η ) was achieved for the bulk heterojunction photovoltaic device ITO/CuPc(10 nm)/Complex: C [3:7](125 nm)/C (10 60 60 nm)/Al(60 nm), in which bis(phenylimino)acenaphthene rhenium tricarbonyl chloride was used as the photosensitizer. The highest I and η were measured to SC p be 5.97 mA/cm and 1.40 %, respectively under air mass (AM) 1.5 simulated solar light illumination (100mW/cm ). For the devices fabricated from rhenium diimine complexes based on benzothiazole-derived ligands, it was found that the optimized device structure was ITO/CuPc(10 nm)/Complex: C [4:6](150 60 nm)/C (10 nm)/Al(60 nm), in which 1-(2-benzothiazolyl)isoquinoline rhenium 60 tricarbonyl chloride was used as the photosensitizer. The highest I and η were SC p measured to be 5.71 mA/cm and 1.72 %, respectively. The role of these rhenium complexes in the photosensitization process was studied by measuring the incident photon to current efficiency (IPCE) at different wavelengths. The photocurrent response agreed well with the absorption spectra of the rhenium complexes, CuPc, and C . This suggests that all these compounds are playing important roles as the 60 photosensitizers in the photovoltaic cell and essential to the photovoltaic process. DOI: 10.5353/th_b3786589 Subjects: Rhenium compounds - Synthesis Photosensitizing compounds Photovoltaic