MUMBAI, India, July 24 -- Intellectual Property India has published a patent application (202611060212 A) filed by Indian Institute Of Technology Jodhpur on May 12, 2026, for A Bio-Derived Melanin-Incorporated Organic Electrochemical Transistor Device And Method For Electrophysiological Signal Sensing.
Inventors include Dr. Akshay Moudgil; Aaishiki Saha; and Jitender Kumar.
The application for the patent was published on July 17, 2026, under issue no. 29/2026.
Abstract: ABSTRACT A BIO-DERIVED MELANIN-INCORPORATED ORGANIC ELECTROCHEMICAL TRANSISTOR DEVICE AND METHOD FOR ELECTROPHYSIOLOGICAL SIGNAL SENSING The present invention relates to a bioelectronic sensing device and a method for fabricating the same, based on a bio derived melanin incorporated organic electrochemical transistor for electrophysiological signal sensing. The device comprises patterned source and drain electrodes on a substrate and an active channel formed from a composite of bio derived melanin and ethylene glycol treated poly(3,4 ethylenedioxythiophene):polystyrene sulfonate, interfaced with a solid electrolyte. Incorporation of melanin into the conducting polymer matrix enables synergistic mixed ionic- electronic charge transport, hydration assisted proton conduction, and partial dedoping of the conducting polymer, while preserving efficient electronic pathways. The device operates as a p type organic electrochemical transistor in a simplified two electrode configuration, eliminating the need for a separate gate electrode. Ionic fluctuations at the channel–electrolyte interface modulate the channel conductivity, producing amplified variations in drain current with enhanced transconductance and signal to noise ratio. The device exhibits stable performance under hydrated conditions and is suitable for integration into portable and wearable sensing systems. Dated this 12th day of May, 2026 (Suvarna Pandey) Regd. Patent Agent [IN/PA-1592] Of RNA, IP Attorneys Agent for the Applicant
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