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.

Date of Patent:
Aug. 31, 2021

Filed:

Dec. 14, 2016
Applicant:

The Regents of the University of California, Oakland, CA (US);

Inventors:

Yunfeng Lu, Culver City, CA (US);

Jie Li, Los Angeles, CA (US);

Yang Liu, Los Angeles, CA (US);

Jie Ren, Los Angeles, CA (US);

Jing Wen, Culver City, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 9/51 (2006.01); A61K 38/38 (2006.01); A61K 38/00 (2006.01);
U.S. Cl.
CPC ...
A61K 9/5138 (2013.01); A61K 38/385 (2013.01); A61K 38/00 (2013.01);
Abstract

The invention relates to protein nanocapsules that exhibit material properties that change in different in vivo environments. A zwitterion moiety on the surface of the nanocapsule can protect the protein from opsonization in a first environment, yet uncouples from the protein nanocapsule in a second environment (e.g. at a pH of less than 6.5). In embodiments of the invention, the uncoupled protein nanocarrier is then internalized by mammalian cells (e.g. tumor cells).


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