PHOTOLYTIC MECHANISM OF RIBOFLAVIN

Photolytic mechanism of riboflavin.

One of the most characteristic properties of riboflavin (I) is its extraordinary photosensitivity. Therefore, many investigations (1-11) have been carried out on the photolytic reaction of riboflavin and related compounds. According to Karrer et al. (2) and Kuhn et al. (3), the type of decomposition by light is dependent on the pH of the solution. When irradiated in neutral or acidic solution, ...

Photolytic depolymerization of alginate.

A photochemical reaction has been developed for the partial de-polymerization of sodium alginate, a polysaccharide utilized in medicine, pharmacy, basic sciences and foods. An aqueous solution of sodium alginate was photochemically depolymerized to approximately 40% of its average molecular weight using ultraviolet light in the presence of titanium dioxide catalyst at pH 7 over a period of 3h. ...

Heterogeneous Photolytic Synthesis of Nanoparticles

Photolytic preparation of tellurium nanorods.

Well-defined tellurium nanorods have been prepared by the photolysis of (t)Bu2Te2 in an aqueous micellar system incorporating dodecanethiol as an auxiliary morphology-directing agent.

Photolytic Lipids from Visual Pigments

A method is described for the preservation of iodopsin, the labile photopigment of daylight vision, by freeze drying in vacuo. The lipids released by the action of light on rhodopsin and iodopsin are found to be similar and to possess a labile absorption spectrum in chloroform, with a rising peak at about 390 mmicro and a declining peak in the region of 470 mmicro. After the change is complete ...