glycine

The adsorption of glycine on amorphous silica surface has been studied to demonstrate the catalytic activity of silica surfaces towards the formation of peptide bonds on prebiotic earth. Silica nanoparticles were synthesized using a microwave assisted method and the nanoparticles were characterized using SEM. Glycine was adsorbed from aqueous solution on the nanoparticles and the adsorption behavior was characterized using FTIR and TGA analyses. At a glycine concentration of 0.5M and at pH=7, favorable adsorption was observed which obeyed the Langmuir isotherm model.

For the first time quantum chemical MNDO method has been used for the calculation of a classical row of monoaminocarbonic acids of glycines, α-alanines, β-alanines, valines, isoleucines, norvalines and γ–aminobutyric acids, leucines and phenylalanines. The optimized geometrical and electronic structure of these compounds has been received.