PubMed Health⌕ Search

Biomedical subjects

L Sanche

Publications and source records attributed to L Sanche.

68 records · Page 4Linked to original sources
PubMed1988

Absolute scattering probabilities for subexcitation electrons in condensed H2O.

Absolute elastic and inelastic collision probabilities per unit length for subexcitation electrons scattering in condensed water were determined by analysis of electron energy loss and transmission data for electron energies between the vacuum level (zero incident kinetic energy) and 3.2 eV. Highly disordered solid films were deposited on a metal substrate with thickness varying between 1 and 50 layers. Analysis by an N-channel model of hot electron transport provides values of 0.017 and 0.068 per layer for the elastic and total inelastic collision probabilities, respectively.

Electrons↗
PubMed1976

Tracer studies of cholesterol degradation induced by ionized gases.

Multiple molecular layers of cholesterol-4-C14 were bombarded in an ultra high vacuum system with various excited molecular, ionic and atomic species derived from oxygen, methane and carbon monoxide. The degradation products were analyzed by thin layer chromatography followed by autoradiography and the decomposition patterns were compared with those obtained from the autoxidation of cholesterol. Bombardment with excited and ionized species derived from both molecular oxygen and carbon monoxide leads to a number of known polar cholesterol oxidation products, similar to those formed during the natural oxidation of cholesterol. In contrast, species derived from methane lead only to the formation of products less polar than cholesterol with none of the established autoxidation products at detectable levels.

Carbon Monoxide↗