Patent · US Active

Producing a separation medium using grayscale mask

US10761056B2 · kind B2 · utility

0Cited by

6References

7Claims

0Family size

Assignee

The Regents of the University of California · US

Inventors

Chi-Chih Kang · Berkeley, US
Amy E. Herr · Oakland, US
Todd Duncombe · Berkeley, US

Key dates

Filing date	Sep 24, 2014
Grant date	Sep 1, 2020
Priority date	—
Expiry date	Nov 26, 2036

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01L2200/12
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Provided are methods for producing a separation medium, where the method includes exposing a separation medium precursor solution to light from a light source through a photomask that includes a region with varied light transmittance to produce the separation medium. Systems that find use in performing the methods, microfluidic devices that include the separation medium, as well as methods of using the microfluidic devices, are also provided. Embodiments of the present disclosure find use in a variety of different applications, including detecting whether an analyte is present in a fluid sample.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.