MUMBAI, India, Feb. 27 -- Intellectual Property India has published a patent application (202431091141 A) filed by Indian Institute Of Technology, Kharagpur, West Bengal, on Nov. 22, 2024, for 'cataractous eye protein isolate-based ion-conducting polymer matrix formulation and their applications in green electronics.'
Inventor(s) include Prasun Chowdhury; and Prof. Swagata Dasgupta.
The application for the patent was published on Feb. 27, under issue no. 09/2026.
According to the abstract released by the Intellectual Property India: "The present invention provides an ion-conducting polymer matrix formulation comprising plasticized and crosslinked cataractous eye protein isolate (CEPI) waste adapted for Solid Polymer Electrolytes (SPEs) suitable for green electronics and flexible biological devices. The prepared ion-conducting polymer matrix is a flexible, biodegradable, mechanically and thermally stable film casted by the formulation including 5% CEPI solution in Milli-Q water with pH adjusted in the range of 10 - 12 by addition of 1N NaOH, plasticized by sorbitol (50% w/w of protein) and cross-linked with sinapic acid (SA) (2- 4% w/w of protein). The waste cataractous eye protein isolate (CEPI) sourced of lens emulsion is used as raw material in the ion-conducting polymer matrix to minimize environmental footprint of electrochemical devices. The biocompatible cross-linked ion-conducting polymer film shows 15 to 55% increment in L929 cell proliferation with increased cell viability and high ionic conductivity ranging from ~2 10-2 to ~8 10-2 S cm-1. A method of preparing the ion-conducting polymer matrix formulation and matrices thereof by utilizing extracted CEPI from waste lens emulsion is also provided."
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