Download or read book Porphyrins and Phthalocyanines Photosensitizers and Photocatalysts written by Rodica-Mariana Ion and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The porphyrins and phthalocyanines are among the most representative macrocycles in synthetic chemistry, characterized by specific molecular structures, responsible and associated with their particular properties. They have high versatility and an adequate variability introduced either by macrocycle metallation or by different substituents at its periphery called meso-substituents. The porphyrins could find, together with the synthetic phthalocyanines, various scientific and technological applications in chemical and photochemical areas. They can serve as catalysts and photocatalysts in different reactions, or as photosensitizers in photodynamic therapy of cancer, due to their high efficiency to generate free radicals and excited state species. The aim of this chapter is to achieve a better understanding of the complex and various properties of the porphyrins and phthalocyanines in different solvents or in heterogeneous media, trying to draw the relationships between these topics with their possible applications in catalytic, photocatalytic area (photodegradation of Kraft-lignin, photooxidation of different unsaturated hydrocarbons, photodegradation of different organic aquatic pollutants, oxirans polymerization) and some preliminary results about the heterogeneous porphyrin sensitizers in the photodynamic therapy area. Their photobleaching mechanisms in different conditions are also discussed.
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 2012-01-03 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 Phthalocyanines and Some Current Applications written by Yusuf Yilmaz and published by BoD – Books on Demand. This book was released on 2017-06-21 with total page 255 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since their initial accidental synthesis and characterization in Scotland in the late 1920s, there has been a strong research focus on the use of phthalocyanines (Pcs) as dyes and pigments. In recent years, active research fields have included their use in electrophotography, photovoltaic and solar cells, molecular electronics, Langmuir-Blodgett films, photosensitizers, electrochromic display devices, gas sensors, liquid crystals, low-dimensional conductors, and optical disks. Phthalocyanines possess interesting biological, electronic, optical, catalytic, and structural properties. The main disadvantage is their insolubility in common solvents due to strong intermolecular - interactions. The solubility of phthalocyanines can be increased by various methods such as the formation of anionic and cationic species and both axial and peripheral substitution. Substitution at the nonperipheral and peripheral positions of the benzo moieties usually enhances their solubility in organic solvents. The most important advantage of phthalocyanines compared to porphyrins is that their Q bands lie at longer wavelengths and are considerably more intense. In this book, you will find synthesis and some applications of various phthalocyanine derivatives.
Download or read book Photosensitization of Porphyrins and Phthalocyanines written by Ichiro Okura and published by CRC Press. This book was released on 2017-05-12 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photosensitization of Porphyrins and Phthalocyanines covers the scentific background to porphyrins and phthalocyanines, and applications of the compounds, especially for the application for photosensitization. It also has a review of advances in research and applications in this field.
Download or read book The Porphyrin Handbook written by Karl Kadish and published by Elsevier. This book was released on 2000 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Porphyrin Handbook, Volume 19: Applications of Phthalocyanines provides information pertinent to every aspect of the chemistry, synthesis, spectroscopy, and structure of phthalocyanines. This book examines the biology and medical implications of porphyrin systems. Organized into five chapters, this volume begins with an overview of the basic photobiology of phthalocyanines, their structure-activity relationships, mechanisms of action in a variety of biological systems, and their potential applications for various medical purposes. This text then examines the type of organization of the molecules in the solid state and the intensity of the intermolecular interactions. Other chapters consider the applications of phthalocyanines as decorative and functional materials, with emphasis on properties and structures of phthalocyanines with industrial relevance. This book discusses as well the enzyme-like catalytic functions of metal complexes derivatives and their practical applications as odor-removing systems and bacterial systems based on their effective catalytic activities. This book is a valuable resource for research scientists, engineers, and clinicians.
Download or read book Materials Science in Photocatalysis written by Elisa I. Garcia Lopez and published by Elsevier. This book was released on 2021-08-15 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt: Materials Science in Photocatalysis provides a complete overview of the different semiconductor materials, from titania to third-generation photocatalysts, examining the increasing complexity and novelty of the materials science in photocatalytic materials. The book describes the most recommended synthesis procedure for each of them and the suitable characterization techniques for determining the optical, structural, morphological, and physical-chemical properties. The most suitable applications of the photocatalysts are described in detail, as well as their environmental applications for wastewater treatment, gaseous effluents depollution, water splitting, CO2 ?xation, selective organic synthesis, coupling reactions, and other selective transformations under both UV light and visible-light irradiation. This book offers a useful reference for a wide audience from students studying chemical engineering and materials chemistry to experienced researchers working on chemical engineering, materials science, materials engineering, environment engineering, nanotechnology, and green chemistry. Includes a complete overview of the different semiconductor materials used as photocatalysts Describes methods of preparation and characterization of photocatalysts and their applications Examines new possibilities to prepare effective photocatalysts
Download or read book The Porphyrin Handbook written by Karl Kadish and published by Academic Press. This book was released on 2012-12-02 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Porphyrin Handbook, Volume 16: Phthalocyanines: Spectroscopic and Electrochemical Characterization provides information pertinent to every aspect of the chemistry, synthesis, spectroscopy, and structure of phthalocyanines. This book examines the biology and medical implications of porphyrin systems. Organized into five chapters, this volume begins with an overview of the photophysical properties of phthalocyanines that are important in relation to photosensitizers in photodynamic therapy, photoconductor, solar cells, and artificial photosynthesis. This text then describe how the data obtained from magnetic circular dichroism spectroscopy has provided the critical information required to describe the excited and ground state degeneracies of main group metallophthalocyanines complexes. Other chapters consider the electrocatalysis by electrodes modified with phthalocyanine sensors and complexes. This book discusses as well the properties of phthalocyanines and of their complexes. The final chapter deals with the experiments with organic pigment thin films. This book is a valuable resource for research scientists, engineers, and clinicians.
Download or read book Applications of Porphyrinoids as Functional Materials written by Heinrich Lang and published by Royal Society of Chemistry. This book was released on 2021-08-10 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: Porphyrinoids are pyrrole-containing macrocycles with varied core sizes, which have found many applications beyond the original chemical and biological aspects. Porphyrin research has a long history, covering a wide variety of disciplines of natural sciences, including photosynthesis, P450-related biocatalysis, organic photovoltaic cells, photodynamic therapeutic agents, bioimaging probes, chemosensors, conductive organic materials, light-emitting materials, near-infrared dyes, nonlinear optical materials, information storage, molecular wires, and metal ligands. This book gives an overview of the applications and potential applications of porphyrins and related macrocycles as smart or functional materials. Chapters cover applications in fields such as energy storage and transfer, water purification, molecular electronics and imaging. With contributions from leading global researchers, this title will be of interest to graduate students and researchers across materials science, chemistry, physics and medicine.
Download or read book The Porphyrin Handbook written by Karl Kadish and published by Elsevier. This book was released on 2000 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Porphyrin Handbook, Volume 17: Phthalocyanines: Properties and Materials provides information pertinent to every aspect of the chemistry, synthesis, spectroscopy, and structure of phthalocyanines. This book examines the biology and medical implications of porphyrin systems. Organized into five chapters, this volume begins with an overview of the effects of pressure, temperature, electromagnetic radiation, and particle impact on phthalocyanines. This text then examines. Other chapters consider the research on phthalocyanine thin films, with emphasis on studies that are concerned primarily with film structures. This book discusses as well the nature of the phthalocyanine aggregation process, how an aggregate is defined, and the issues of its bonding and structure. The final chapter deals with the advances in the design of composites of phthalocyanines or porphyrins and inorganic hosts and some of the most significant finding in the catalysis with these systems. This book is a valuable resource for research scientists, engineers, and clinicians.
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 Photophysics and Nanophysics in Therapeutics written by Nilesh M. Mahajan and published by Elsevier. This book was released on 2022-04-29 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photophysics and Nanophysics in Therapeutics explores the latest advances and applications of phototherapy and nanotherapy, covering the application of light, radiation, and nanotechnology in therapeutics, along with the fundamental principles of physics in these areas. Consisting of two parts, the book first features a range of chapters covering phototherapeutics, from the fundamentals of photodynamic therapy (PDT) to applications such as cancer treatment and advances in radiotherapy, applied physics in cancer radiotherapy treatment, and the role of carbon ion beam therapy. Other sections cover nanotherapeutics, potential applications and challenges, and nanotherapy for drug delivery to the brain. Final chapters delve into nanotechnology in the diagnosis and treatment of cancers, the role of nanocarriers for HIV treatment, nanoparticles for rheumatoid arthritis treatment, peptide functionalized nanomaterials as microbial sensors, and theranostic nanoagents. Evaluates the latest developments in the fields of phototherapy and nanotherapy Investigates the fundamental physics behind these technologies Explores therapeutic applications across a range of diseases, such as skin disorders, cancer, and neurological conditions Includes case studies that illustrate research in practice Considers challenges and future perspectives
Download or read book Cellular uptake and photosensitizing effects of porphyrins and phthalocyanines written by Kristian Berg and published by . This book was released on 1990 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Green Photocatalytic Semiconductors written by Seema Garg and published by Springer Nature. This book was released on 2021-09-20 with total page 855 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book comprises a detailed overview on the role of photocatalysts for environmental remediation, hydrogen production and carbon dioxide reduction. Effective ways to enhance the photocatalytic activity of the material via doping, hybrid material, laser light and nanocomposites have been discussed in this book. The book also further elaborates the role of metal nanoparticles, rare earth doping, sensitizers, surface oxygen vacancy, interface engineering and band gap engineering for enhancing the photocatalytic activity. An approach to recover the photocatalytic material via immobilization is also presented. This book brings to light much of the recent research in the development of such semiconductor photocatalytic systems. The book will thus be of relevance to researchers in the field of: material science, environmental science & technology, photocatalytic applications, newer methods of energy generation & conversion and industrial applications.
Download or read book Porphyrin Science by Women in 3 Volumes written by Fabienne Dumoulin and published by World Scientific Publishing Company. This book was released on 2021-01-21 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a reprint three volume set with a thematic organization of the articles of the four Women in Porphyrin Science special issues published in the Journal of Porphyrins and Phthalocyanines in 2019. All the articles were carefully arranged by the volume editors and Karl Kadish, the Journal of Porphyrins and Phthalocyanines Editor-in-Chief, in order to provide a comprehensive coverage of each topic. Volume 1 covers the biomedical aspects, applications and uses of BODIPY's, porphyrins, phthalocyanines and related derivatives, mainly for photodynamic therapy. Volume 2 covers the synthesis, characteristics and properties of these compounds, while Volume 3 is on topics related to materials, sensors, energy and catalysis. These state-of-the-art articles are contributed by women. This book will strongly contribute to the visibility of women in the field of porphyrin science.
Download or read book Nanostructured Photocatalysts written by Van-Huy Nguyen and published by Elsevier. This book was released on 2021-06-25 with total page 594 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanostructured Photocatalysts: From Fundamental to Practical Applications offers a good opportunity for academic, industrial researchers and engineers to gain insights on the fundamental principles and updated knowledge on the engineering aspects and various practical applications of photocatalysis. This book comprehensively and systematically reviews photocatalytic fundamental aspects, ranging from reaction mechanism, kinetic modeling, nanocatalyst synthesis and design, essential material characterization using advanced techniques, and novel reactor design and scale-up. Future perspectives, techno-economical evaluation and lifecycle assessment of photocatalytic processes are also provided. Finally, a wide range of practical, important and emerging photocatalytic applications, namely wastewater treatment, air pollution remediation, renewable and green energy generation, and vital chemical production are thoroughly covered, making this book useful and beneficial for engineers, scientists, academic researchers, undergraduates and postgraduates. Provides a fundamental understanding of photocatalysis Covers all aspects of recent developments in photocatalytic processes and photocatalytic materials Focuses on advanced photocatalytic applications and future research advancements on energy, environment, biomedical, and other specialty fields Contains contributions from leading international experts in photocatalysis Presents a valuable reference for academic and industrial researchers, scientists and engineers
Download or read book Embracing Change written by Harry Barry and published by Orion Spring. This book was released on 2021-05-13 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: INSTANT INTERNATIONAL BESTSELLER This year has demonstrated how quickly our lives can change completely without warning. But every day we face change - whether it's small changes such as an unscheduled meeting or plans going awry, to bigger changes such as a change of job or coping with the loss of a loved one. Our lives are constantly moving and we, in turn, must move with them. In his latest book, bestselling author Dr Harry Barry shows us how to not only cope with change but learn in the process, and therefore grow and develop as a human being. Dr Barry, with the benefit of over thirty-five-years-experience as a family doctor assisting people in crisis, shares the practical tools and techniques required to manage change effectively and live your life to the fullest. Revealing how to become the ultimate pragmatist - accepting that there is no such thing as the perfect solution, just the best solution one can find at that moment in time. Embracing Change is a practical, compassionate companion for anyone looking to boost their resilience, adapt to life's challenges, and by smoothly navigating through them, reach calmer waters.
Download or read book Methods in Porphyrin Photosensitization written by David Kessel and published by Springer. This book was released on 1986-01-01 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of porphyrins for localization and photodynamic therapy of neoplastic disease has been the topic of several international symposia, reviews and books during the preceeding five years. The literature on this topic has continued to grow, as have numbers of presentations at national and international meetings relating to photobiology, chemistry, and lasers. In this volume, it is the intention of the editor to provide both information on current research projects, and detailed methodology used in such investigations. A bibliography on the subjects of porphyrin localization and therapy is included. The manuscripts contained in this volume are based on reports given at a Porphyrin Photosensitization Workshop which was held in Philadel phia, July 6-7, 1984. This Workshop was supported by NIH grant CA 36746, together with funds from the Fogarty International Center. Authors were requested to update their contributions to provide a summary of progress to mid 1985. Manuscripts containing material not presented in Philadelphia are also included, notably a series of articles describ ing current clinical and pre-clinical results from China. Since the Philadelphia Workshop, a meeting was held in Alghero, Sardinia (May, 1985), and additional conferences are now being planned; this attests to the continued interest in photodynamic therapy involving porphyrin photo sensitization.
