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:
Jan. 24, 2023
Filed:
Nov. 08, 2019
International Business Machines Corporation, Armonk, NY (US);
Institute of Bioengineering and Nanotechnology, Singapore, SG;
Amos Cahan, Dobbs Ferry, NY (US);
Hariklia Deligianni, Alpine, NJ (US);
Xin Ding, Singapore, SG;
Mareva B. Fevre, San Jose, CA (US);
James L. Hedrick, Pleasanton, CA (US);
Pei-Yun S. Hsueh, New York, NY (US);
Zhen Chang Liang, Singapore, SG;
Nathaniel H. Park, San Jose, CA (US);
Theodore G. van Kessel, Millbrook, NY (US);
Rudy J. Wojtecki, San Jose, CA (US);
Yi Yan Yang, Singapore, SG;
International Business Machines Corporation, Armonk, NY (US);
Institute of Bioengineering and Nanotechnology, Singapore, SG;
Abstract
Antibacterial coatings and methods of making the antibacterial coatings are described herein. A first branched polyethylenimine (BPEI) layer is formed and a first glyoxal layer is formed on a surface of the BPEI layer. The first BPEI layer and the first glyoxal layer are cured to form a crosslinked BPEI coating. The first BPEI layer can be modified with superhydrophobic moieties, superhydrophilic moieties, or negatively charged moieties to increase the antifouling characteristics of the coating. The first BPEI layer can be modified with contact-killing bactericidal moieties to increase the bactericidal characteristics of the coating.