The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 11, 2025
Filed:
Mar. 17, 2022
Applicant:
Northwestern University, Evanston, IL (US);
Inventors:
Chuang Li, Evanston, IL (US);
Samuel I. Stupp, Evanston, IL (US);
Assignee:
Northwestern University, Evanston, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07D 491/107 (2006.01); C08F 222/10 (2006.01);
U.S. Cl.
CPC ...
C07D 491/107 (2013.01); C08F 222/1063 (2020.02); C08F 2800/10 (2013.01); C08F 2810/20 (2013.01); C08F 2810/50 (2013.01);
Abstract
Provided herein are sulfonate-based water-soluble photoswitches that, in contrast to existing systems, trigger a volumetric expansion in hydrogels upon exposure to photons; contraction is in turn observed under dark conditions in a highly reversible manner.