Photophysiology General Principles Action Of Light On Plants

Photophysiology, Volume I: General Principles: Action of Light on Plants focuses on the fundamental mechanisms by which non-ionizing radiations affect the living cell at the molecular level when such analysis is possible. The selection first offers information on the development of photochemistry, including photosynthesis, photoaxis, vision, phototropism, diurnal rhythms and visible light, and medical uses of ultraviolet light. The text then takes a look at the principles of photochemistry and photochemical methods and electron spin resonance and its application to photophysiology. The publication examines the photochemical action of light on macromolecules, absorption spectra, spectrophotometry, and action spectra, and photochemical reactions of photosynthesis. Discussions focus on photosynthetic phosphorylation, measurement and interpretation of action spectra, instrumentation for absorption spectra, and inactivation of viruses by visible and ultraviolet light. The selection is a valuable source of information for readers interested in photophysiology.

Through a genealogy of photosensitive elements in media devices and artworks, this book investigates three dichotomies that impoverish debates and proposals in media art: material/immaterial, organic/machinic, and theory/practice. It combines historical and analytical approaches, through new materialism, media archaeology, cultural techniques and second-order cybernetics. Known media stories are reframed from an alternative perspective, elucidating photosensitivity as a metonymy to provide guidelines to art students, artists, curators and theoreticians - especially those who are committed to critical views of scientific and technological knowledge in aesthetic experimentations.

Nanomaterials for Photodynamic Therapy takes a unique approach to this area, with a key focus on the use of nanomaterials and nanocarriers for photodynamic therapy (PDT). The book introduces the history and mechanism of action behind PDT, covering the variety of sensitizers currently available. Subsequent chapters review existing and emerging nanomaterials for PDT, including hydrogel nanocomposites, fullerenes, quantum dots, polymeric micelles, and more. Challenges and translational aspects of PDT are also discussed, touching on the issues and hindrances of drug resistant cancers.The book bridges the gap between the physics and clinical aspects of PDT, offering a unique nanomaterials-focused perspective. This book will prove useful for materials scientists, biomedical engineers, electrical and optical engineers, and pharmaceutical scientists interested in cancer treatment. Reviews a broad range of nanomaterials for PDT, such as graphene oxide, dendrimers, solid lipid nanoparticles, and more Provides a helpful introduction to the history and mechanism of action behind PDT Discusses challenges in clinical translational, particularly in drug-resistant cancers