University of California

Amay Jairaj Bandodkar

Joseph Wang

Patrick Mercier

Joshua Ray Windmiller

A non-invasive epidermal electrochemical sensor device includes an adhesive membrane; a flexible or stretchable substrate disposed over the adhesive membrane; and an anodic electrode assembly disposed over the flexible or stretchable substrate including an iontophoretic electrode. The device includes a cathodic electrode assembly disposed adjacent to the anodic electrode assembly over the flexible or stretchable substrate and includes an iontophoretic electrode. Either the cathodic electrode assembly or the anodic electrode assembly also includes a sensing electrode that includes a working electrode and at least one of a counter electrode or a reference electrode. The iontophoretic electrode in either the anodic electrode assembly or the cathodic electrode assembly that includes the sensing electrode is disposed on the substrate to at least partially encompass the working electrode and the at least one of the counter electrode or the reference electrode. The device includes an electrode interface assembly including independent electrically conductive contacts.

Non-invasive and wearable chemical sensors and biosensors

Methods, systems, and devices are disclosed for providing a portable enzymatic-ink dispensing system. The system includes an enzymatic-ink including one or more biocompatible binders, one or more biocompatible mediators, an enzyme, an enzyme stabilizer, and a conductive material. The system includes a dispenser including a chamber to hold the enzymatic-ink and an applicator to apply the enzymatic ink dispensed from the chamber onto a target substrate.

Multiple-use renewable electrochemical sensors based on direct drawing of enzymatic inks

Methods, structures, devices and systems are disclosed for fabricating and implementing electrochemical biosensors and chemical sensors. In one aspect, a method of producing an epidermal biosensor includes forming an electrode pattern onto a coated surface of a paper-based substrate to form an electrochemical sensor, the electrode pattern including an electrically conductive material and an electrically insulative material configured in a particular design layout, and attaching an adhesive sheet on a surface of the electrochemical sensor having the electrode pattern, the adhesive sheet capable of adhering to skin or a wearable item, in which the electrochemical sensor, when attached to the skin or the wearable item, is operable to detect chemical analytes within an external environment.

Growing community of inventors

La Jolla, CA, United States of America

Amay Jairaj Bandodkar