Bioelectret state in glycine: A study by thermally stimulated discharge current technique

The bioelectret state in an amino acid, glycine, has been studied using the thermally stimulated discharge current (TSDC) technique. The amino acid ha s been found to be able to manifest bioelectret state; the TSDC spectrum is characterized by a large peak at temperature around 265 K. The spectrum ha s been analysed by varying various poling parameters and the source of pola risation storage is identified as the rotation df the polar amino acid mole cule. The results of the present investigation indicate the possible role o f polarisation storage in amino acids for the bioelectret state in biopolym ers.