retinal – TechConnect Briefs

Triple protection delivery system for retinaldehyde: Preparation, skin penetration and controlled release at the hair follicles

Supmuang P., Wanichwecharungruang S., Chulalongkorn University, TH

Vitamin A and its derivatives including retinaldehyde possess serious instability problem. To continuously supply skin with un-degraded retinaldehyde, nanoparticles which could penetrate into skin via hair follicles and then slowly release this vitamin A derivative [...]

11-cis-Retinal Protonated Schiff Base: The effect of environment and solvent on the chromophore of rhodopsin

Entel P., Sugihara M., Buß V., Elstner M., Frauenheim Th., Gerhard-Mercator-Universität, DE

Recently the structure of rhodopsin was determined from the X-ray diffraction data extending to the resolution of 2.8 A. We have studied the effects of amino acids and of water using A density functional based [...]

Model of Photovoltage Response of Bacteriorhodopsin in PVA Films

Frydrych M., Lensu L., Aschi C., Parkkinen J., Parkkinen S., Parkkinen J., Parkkinen S., Jaaskelainen T., Lappeenranta University of Technology, FI

Bacteriorhodopsin (BR) is a light-transducing protein contained in a purple membrane of microorganism Halobacterium salinarium. Natural function of BR is to act as a light-driven proton pump in energy balancing mechanism of the bacterium. Numerous [...]