Effect of Lauryl Gallate on Wetting Properties of Organized Thin Phospholipid Films on Mica

Abstract

To characterize surfaces of phospholipid/lauryl gallate monolayers deposited on mica there were applied numerous methods such as measurements of advancing and receding contact angles and optical profilometry, as well as atomic force microscopy. As a result, there was no found correlation between contact angles (and their hysteresis) or surface roughness. Hence, most monolayer topographical changes at the Ångstrom level accompanied changes in surface chemistry which resulted in the hysteresis of contact angle on thin films. The obtained results indicate that stability and permeability of the binary films are determined by the composition and stoichiometry of the mixed monolayers. These results can be helpful for insight into lauryl gallate behavior in living systems, i.e., in membrane antioxidant protection and pharmacological activities.

Improvement of bacterial cellulose nonwoven fabrics by physical entrapment of lauryl gallate oligomers

“…17,18 These materials have been incorporated into three-dimensional BC matrices to provide increased crystallinity, porosity, hydrophobicity, and mechanical properties. 10,17,18 Lauryl gallate, the n-dococyl ester of gallic acid, which belongs to the gallate homologue series, is a useful functional polymer [19][20][21][22][23][24][25] for lignocellulose fiber modification, such as hard wood kraft pulp, 21 softwood cellulose pulp, 22 and jute fiber, 26 and protein fibers like wool, 27 but it has not been applied to BC nonwoven fabric. Several studies have used lauryl gallate enzymatically oxidized in conjunction with laccase (EC 1.10.3.2. p-diphenol dioxygen oxidoreductase).…”