公开(公告)号：US20220009764A1

公开(公告)日：2022-01-13

申请号：US17369658

申请日：2021-07-07

Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

Inventor： Yongxiao Zhou ,  Michael Chu ,  Thao Nguyen ,  Michelle Khine ,  Erik Morgan Werner ,  Elliot En-Yu Hui ,  Eugene Lee ,  Kevin Costa

IPC: B81B3/00 ,  B01L3/00 ,  B81B7/02 ,  B81C3/00

Abstract: The present invention features a stretchable strain sensor for detecting minute amounts of strain or pressure. The stretchable strain sensor may comprise a first soft polymer layer, a wrinkled conductive layer disposed on the first soft polymer layer, and a second soft polymer layer disposed on the wrinkled conductive layer. Strain applied to the sensor may cause the wrinkled conductive layer to stretch and crack and send a signal based on resistance. Pressure applied to the sensor may cause the wrinkled conductive layer to deform and crack and send a signal based on resistance. The stretchable strain sensor may be capable of measuring contractions of a tissue, detecting fluid flowing through a microfluidic channel, and detecting whether a microfluidic valve is closed or not.