US 11,884,784 B2
Photodynamic compositions, methods of making, and uses thereof
Reza Arman Ghiladi, Raleigh, NC (US); Dimitris Argyropoulos, Raleigh, NC (US); and Frank Scholle, Raleigh, NC (US)
Assigned to North Carolina State University, Raleigh, NC (US)
Filed by North Carolina State University, Raleigh, NC (US)
Filed on May 14, 2021, as Appl. No. 17/320,524.
Application 17/320,524 is a continuation in part of application No. 16/099,995, granted, now 11,039,616, previously published as PCT/US2017/031932, filed on May 10, 2017.
Claims priority of provisional application 62/334,150, filed on May 10, 2016.
Prior Publication US 2021/0269604 A1, Sep. 2, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. C08J 3/21 (2006.01); C09D 11/328 (2014.01); G03F 7/004 (2006.01); G03F 7/20 (2006.01); C08K 3/22 (2006.01); C08K 5/56 (2006.01); C09D 11/38 (2014.01)
CPC C08J 3/212 (2013.01) [C08K 3/22 (2013.01); C08K 5/56 (2013.01); C09D 11/328 (2013.01); C09D 11/38 (2013.01); G03F 7/004 (2013.01); G03F 7/2022 (2013.01); C08J 2301/02 (2013.01); C08K 2003/2227 (2013.01)] 26 Claims
 
1. A composition comprising:
a natural polymer scaffold, wherein the natural polymer scaffold is selected from the group consisting of: nanocrystalline cellulose, cellulose fibers, lignin, chitin, chitosan, nanofibrillated chitosan, poly-glucosamine, wool, silk, cotton, and any permissible combinations thereof; and
a photosensitizer, wherein the photosensitizer is attached to the natural polymer scaffold by a non-covalent bond, wherein the non-covalent bond is an electrostatic interaction, hydrogen-bonding interaction, or a hydrophobic interaction, and wherein the photosensitizer is a positively charged photosensitizer.