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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.:

US 11572477 B1

PDFFull Text
Date of Patent:
Feb. 07, 2023

Filed:

Nov. 08, 2019

Prevention of biofilm formation

Applicants:

International Business Machines Corporation, Armonk, NY (US);

Institute of Bioengineering and Nanotechnology, Singapore, SG;

Inventors:

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;

Assignees:

INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US);

Institute of Bioengineering and Nanotechnology, Singapore, SG;

Attorneys:

Cantor Colburn LLP

Kristofer Haggerty

Primary Examiner:

Matthew M Nelson

Int. Cl.
CPC ...
A61C 8/00 (2006.01); C09D 5/14 (2006.01); A61M 5/142 (2006.01); C09D 7/65 (2018.01); B05D 1/36 (2006.01); C08G 73/02 (2006.01); A61F 2/30 (2006.01); B05D 5/00 (2006.01); A01N 33/12 (2006.01); A61B 5/00 (2006.01); A61F 2/28 (2006.01); A61L 27/34 (2006.01); A61L 27/54 (2006.01); A61L 29/08 (2006.01); A61L 29/16 (2006.01); A61M 5/14 (2006.01); A61M 27/00 (2006.01); A61N 1/378 (2006.01); B05D 3/00 (2006.01); C08J 3/24 (2006.01); B05D 1/02 (2006.01); A61F 2/07 (2013.01); A61B 1/00 (2006.01); A61N 1/36 (2006.01); A61B 17/56 (2006.01); A61M 25/00 (2006.01); A61F 2/01 (2006.01); A61F 2/48 (2006.01); A61F 2/06 (2013.01); A61F 2/14 (2006.01); A61F 2/24 (2006.01); A61F 2/82 (2013.01); A61N 1/362 (2006.01); C09D 179/02 (2006.01);
U.S. Cl.
CPC ...
C09D 5/14 (2013.01); A01N 33/12 (2013.01); A61B 5/6868 (2013.01); A61C 8/0013 (2013.01); A61C 8/0015 (2013.01); A61F 2/28 (2013.01); A61F 2/30767 (2013.01); A61L 27/34 (2013.01); A61L 27/54 (2013.01); A61L 29/085 (2013.01); A61L 29/16 (2013.01); A61M 5/14 (2013.01); A61M 5/14276 (2013.01); A61M 27/002 (2013.01); A61N 1/378 (2013.01); B05D 1/36 (2013.01); B05D 3/007 (2013.01); B05D 5/00 (2013.01); C08G 73/0206 (2013.01); C08J 3/24 (2013.01); C09D 7/65 (2018.01); A61B 1/00142 (2013.01); A61B 17/56 (2013.01); A61C 8/00 (2013.01); A61F 2/01 (2013.01); A61F 2/06 (2013.01); A61F 2/07 (2013.01); A61F 2/14 (2013.01); A61F 2/24 (2013.01); A61F 2/30 (2013.01); A61F 2/482 (2021.08); A61F 2/82 (2013.01); A61F 2002/3006 (2013.01); A61F 2002/30677 (2013.01); A61M 25/0017 (2013.01); A61M 2025/0056 (2013.01); A61M 2205/0205 (2013.01); A61M 2205/0238 (2013.01); A61M 2205/04 (2013.01); A61N 1/362 (2013.01); A61N 1/3605 (2013.01); A61N 1/36038 (2017.08); A61N 1/3787 (2013.01); B05D 1/02 (2013.01); B05D 2505/50 (2013.01); B05D 2518/00 (2013.01); C08J 2379/02 (2013.01); C09D 179/02 (2013.01);
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.

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