LOW MOLECULAR WEIGHT GELLING AGENT AND HYDROGEL USING THE GELLING AGENT

摘要

PROBLEM TO BE SOLVED: To provide a gelling agent having a gelling ability to a metal ion capable of being coordinated with two or more carboxy groups so as to respond to different temperatures depending on the metal ion species.SOLUTION: A gelling agent includes as an active ingredient an N-acylamino acid represented by formula (1), (wherein Rdenotes a 6-20C hydrocarbon; Ris a methine group or a benzene-triyl group; Ris an amino acid side chain without a polar functional group or a hydrogen; and Ris hydrogen or an inorganic salt such as sodium and potassium).