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:
Mar. 23, 2021
Filed:
Jun. 02, 2016
Massachusetts Institute of Technology, Cambridge, MA (US);
Xuanhe Zhao, Cambridge, MA (US);
Shaoting Lin, Cambridge, MA (US);
Hyunwoo Yuk, Cambridge, MA (US);
Teng Zhang, Cambridge, MA (US);
German A P Hernandez, Cambridge, MA (US);
Massachusetts Institute of Technology, Cambridge, MA (US);
Abstract
A robust hydrogel-solid hybrid formed of a substrate material having a nonporous and non-topographically patterned surface and a tough hydrogel bonded to the surface, the tough hydrogel having over 90 wt % water, and the hydrogel being bonded to provide interfacial toughness over 300 Jm, and even over 1000 Jm. The hydrogel is formed of polyacrylamide or polyethylene glycol diacrylate, which provide long-chain polymer networks, and chitosan, hyaluronan, or alginate, which provide mechanically dissipative components. An anchor, which can be a silane, a sulfide, or an amine, is disposed between the surface and the hydrogel to provide chemical bonding between the surface and the long-chain networks of the hydrogel.