公开(公告)号：US20220003684A1

公开(公告)日：2022-01-06

申请号：US17291690

申请日：2019-11-08

Applicant: UWM Research Foundation, Inc.

Inventor： Jian Chen ,  Seyedali Banisadr ,  Adebola Olatunji Oyefusi

IPC: G01N21/78

Abstract: A three-layer system composed of a substrate, a metal or metal alloy thin film deposited on the substrate surface, and an overlaid stimulus-responsive polymer layer detects changes in environmental conditions brought about by physical, chemical, or biological stimuli. The thin metal or metal alloy film functions as an optical filter and the polymer layer changes properties (e.g., dimensions) in response to changing environmental conditions that manifests as a change in wavelength of reflected or filtered light. The system is useful in colorimetric sensors.