Photolysis

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photolysis

[fō′täl·ə·səs]
(physical chemistry)
The use of radiant energy to produce chemical changes.

Photolysis

 

the decomposition of molecules that occurs when the molecules absorb light. The decomposition products may be molecules with a smaller number of atoms, free radicals or atoms, or positive and negative ions. If the products are free radicals or atoms, the process is called photodissociation. If the products are positive and negative ions, the process is known as photoionization.

References in periodicals archive ?
First, photolytic deactivation renders AgI ineffective after a prolonged exposure to direct light.
Therefore, the goals of the present study are to explore the degradation behavior of SIM under different stress conditions (acidic, alkaline, oxidative, thermal, and photolytic) using simplified FDS by adopting DoE concept.
Figure 1 shows the results of photolytic degradation of ALB, using only UV-C (185/254 nm radiation peaks) or UV-A (365 nm radiation peak).
Photolytic degradation of triclosan in freshwater and seawater.
Martsenyuk, "Toxicological evaluation of photolytic degradation products of pesticides," Cig.
Caption: Figure 4: Results of stability studies of FA performed at 5[degrees]C [+ or -] 3[degrees]C (a), 25[degrees]C/60% RH (b), and 40[degrees]C/75% RH (c) as well as under photolytic stress conditions as described in ICH Q1B (d).
While it is an alternative BFR, TBP-AE can also be formed by both photolytic and anaerobic debromination of another tribromophenoxy- BFR, TBP-DBPE (Ma et al.
Nevertheless, when hydrogen peroxide is placed in the solution, the oxidant process is enhanced because the photolytic dissociation of hydrogen peroxide with radiation of 254 nm yields hydroxyl radicals, responsible for an additional oxidation pathway, as can be seen in Eq.
(33) Clearly, there is a need for safer sunscreens that ensure optimal photo-protection with minimal photolytic decomposition and skin damaging byproduct formation.
Roland Erich Weber, a POPs expert of UN Environment Programme, said that persistent organic pollutants are organic compounds that are resistant to environmental degradation through chemical, biological, and photolytic processes.
Leybaert et al., "Inositol 1,4,5trisphosphate receptor function in human oocytes: calcium responses and oocyte activation-related phenomena induced by photolytic release of InsP3 are blocked by a specific antibody to the type I receptor," Molecular Human Reproduction, vol.
Madison, "Neuroblastoma grafts are noninvasively removed within mouse neocortex by selective laser activation of intracellular photolytic chromophore," The Journal of Neuroscience, vol.