Photosensitizer - Wikipedia
网页Photosensitizers are light absorbers that alter the course of a photochemical reaction. They usually are catalysts. [1] . They can function by many mechanisms, sometimes they donate an electron to the substrate, sometimes they abstract a hydrogen atom from the substrate.
Photochemical reaction - Photosensitization, Light Activation ...
网页Photosensitized molecular oxygen is a powerfully oxidative species that severely hampers the photosynthetic efficiency of plants and causes health problems such as cataracts in humans.
The photophysics of photosensitization: A brief overview
网页2021年9月1日 · Theories of non-radiative transitions provide insight into the requisite molecular structural features and the types and ordering of excited states of organic molecules that are most consistent with this set of desirable photophysical properties.
Photosensitization | Photodynamic Therapy, Light Therapy
网页Photosensitization, the process of initiating a reaction through the use of a substance capable of absorbing light and transferring the energy to the desired reactants. The technique is commonly employed in photochemical work, particularly for reactions requiring light sources of certain.
Photosensitization Reactions of Biomolecules: Definition, …
网页Photosensitized reactions that apply to biomolecules may be generally classified as oxygen dependent and independent. It is important to emphasize that this classification is not based on whether the excited sensitizer reacts with O 2, …
网页Current research on photosensitized phenomena in biology includes studies of the photophysics and photochemistry of photosensitizer mole cules, the mechanisms of the sensitized photodegradation of essential biomolecules, the biochemistry and physiology of photosensitized viral inactivation and cell killing, the role
Photosensitizers in antibacterial photodynamic therapy: an …
网页2018年12月12日 · Antibacterial Photodynamic therapy (APDT) is a process utilizing light and light sensitive agents (named photosensitizer (PS)) and is usually applied in an oxygen-rich environment. The energy of the photons is absorbed by the photosensitizer and subsequently transferred to surrounding molecules.
BASIC PHOTOSENSITIZATION - PHOTOBIOLOGY
网页What is Photosensitization? Photosensitization is a reaction to light that is mediated by a light-absorbing molecule, which is not the ultimate target. Photosensitization can involve reactions within living cells or tissues, or they can occur in pure chemical systems. In photobiology, we are concerned with the reactions in living systems.
Photosensitization Reactions of Biomolecules: Definition, …
网页Photosensitization reactions have been demonstrated to be largely responsible for the deleterious biological effects of UV and visible radiation, as well as for the curative actions of photomedicine. A large number of endogenous and exogenous photosensitizers, biological targets and mechanisms have ….
Photosensitization - SpringerLink
网页Several types of photochemical processes occur in living organisms that are important or essential for their survival. In all of these reactions, the initial step is the absorption of photons by specialized pigments, such as chlorophyll, in the photosynthetic...
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