Oxygen based radicals are predominantly generated in the water phase. Therefore, it is very important to use not only lipophilic antioxidants but also water-soluble radical scavengers in cosmetic formulations. Vitamin C, glutathion and different enzymes are natural water-soluble antioxidants. Unfortunately, most of them are not stable in cosmetic formulations. We studied a new water-soluble ant...

Cunninghamella elegans oxidized naphthalene to ethyl acetate-soluble and water-soluble metabolites. Experiments with [14C]-naphthalene indicated that 21% of the substrate was converted into metabolites. The ratio of organic-soluble metabolites to water-soluble metabolites was 76:24. The major ethyl acetate-soluble naphthalene metabolites were trans-1,2-dihydroxy-1,2-dihydro-naphthalene, 4-hydro...

We describe the production of collagen fibre bundles through a multi-strand, semi-continuous extrusion process. Cross-linking using an EDC (1-ethyl-3-(3-dimethylaminopropyl)carbodiimide), NHS (N-hydroxysuccinimide) combination was considered. Atomic Force Microscopy (AFM) and Raman spectroscopy focused on how cross-linking affected the collagen fibrillar structure. In the cross-linked fibres, a...

BACKGROUND According to the world health organization, radon is a leading cause of cancer in various internal organs and should be regarded with concern. OBJECTIVES The aim of this study is to evaluate the concentration of soluble radon in the drinking water of the city of Aliabad Katoul, Iran. MATERIALS AND METHODS The radon concentration was measured by using a radon meter, SARAD(TM) mode...

Litt,]e information is avatlable to estimate watcr-soluble vitamin intakes t'rom urinary vitamins and tLieir metabolite contents as possib]e nutritional markcrs. Dctermination of the relationships between the oral dose and urinary excretion of water-soluble vitamins in human subjects contributes to linding va[id nutrition markers of watcr-soluble vitamin intakes. Six fcmale Japanese college stu...

The structures of Langmuir-Gibbs (LG) films at the air-solution interface were studied using surface tensiometry, Brewster angle microscopy (BAM), and infrared external reflection spectroscopy (IR-ERS). The LG films were fabricated by forming Langmuir films of deuterated arachidic acid (D19A) and then injecting a water-soluble surfactant, sodium dodecyl sulfate or octaethylene glycol monododecy...

Magnetic water-soluble cyano-bridged metallic coordination polymer nanoparticles of controlled size were prepared by using water-soluble chitosan beads.

To overcome the drawbacks associated with limited cross-linking efficiency of carbodiimide modified amniotic membrane, this study investigated the use of L-lysine as an additional amino acid bridge to enhance the stability of a nanofibrous tissue matrix for a limbal epithelial cell culture platform. Results of ninhydrin assays and zeta potential measurements showed that the amount of positively...