Northwestern University

University of Illinois

Philipp Gutruf

John A Rogers

Tyler R Ray

Siddharth Krishnan

Kun Hyuck Lee

Jonathan T Reeder

Chun-Ju Su

Amit B Ayer

Jungil Choi

Shuai Xu

Sungbong Kim

Johnathan T Reeder

Yurina Sekine

Amay J Bandodkar

Aurelie Hourlier-Fargette

Yajing Li

Surabhi R Madhvapathy

Milan Raj

Provided are wireless electronic devices for thermally interfacing with a biological tissue. The device may have a flexible substrate; a thermal actuator supported by said flexible substrate configured to provide a thermal input to said biological tissue; a temperature sensor supported by said flexible substrate configured to measure a temperature to determine thermal conductivity of said biological tissue; and a wireless electronic system in electronic communication with said thermal actuator and said temperature sensor, wherein said wireless electronic system is configured to provide two-way communication with an external controller. Also provided are related methods of using the electronic devices, including for cosmetic, beauty, or medical applications.

Wireless skin sensor with methods and uses

The invention provides a versatile sensing platform for sensing and analysis of biofluids, particularly well-suited for sensing and analysis of sweat. Systems of the invention allows for sensitive and selective detection of a range of analytes in sweat including metabolites, electrolytes and biomarkers. Systems of the invention provide a noninvasive and accurate means for quantitative characterization of important sweat characteristics including sweat volume, sweat loss and sweat rate. Systems of the invention are compatible with materials and device geometries for important class of conformal tissue mounted electronic devices, including epidermal electronic devices.

Epidermal sensing systems for optical readout, visualization and analysis of biofluids

Provided are conformable devices to measure subdermal fluid flow and related methods. A soft, stretchable and flexible substrate supports a thermal actuator and various specially positioned temperature sensors. A microprocessor in electronic communication with sensors calculates subdermal fluid flow from the measured upstream and downstream temperatures, as well as various application-dependent parameters. Devices and methods provided herein are particularly useful for measuring cerebral spinal fluid in a ventricular shunt placed for treatment of hydrocephalus.

Wireless and noninvasive epidermal electronics

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Evanston, IL, United States of America

Philipp Gutruf