SENSOR AND METHOD OF MAKING A SENSOR

摘要

A sensor, system, and method of making a sensor are disclosed. The sensor includes a solid polymer material (710, 760), and a dopant-containing region (750) of discrete thickness at a surface (720) of the solid polymer (710, 760). The method of creating the sensor includes impregnating the polymer material (710, 760) with the dopant by contact with a solvent solution (730) containing the dopants. A polymer/solvent gel-layer (750), whose depth increases with impregnation time, forms after contact of the polymer material (710, 760) in the solvent solution (730). The dopants are diffused into the polymer material (710, 760), forming a dopant-containing region (750) of discrete thickness at a surface (720) of the solid polymer (710, 760). A microfluid structure with microchannels is formed by imprinting grooves or channels in the polymer/solvent gel-layer or dopant-containing region (750), for example by using a stamp (740), and bonding the imprinted layer to a top plate (780).