Qing Jun Wang

US Patent:

20210289791, Sep 23, 2021

Filed:

Jul 30, 2019

Appl. No.:

17/264766

Inventors:

- Scottsdale AZ, US
Qing Hua Wang - Scottsdale AZ, US
Sanchari Saha - Tempe AZ, US
Abhishek Debnath - Tempe AZ, US

International Classification:

A01N 59/16
A01N 59/02
A01N 25/32
A01N 25/10
A61L 31/16
A61L 31/10

Abstract:

Biocompatible polymer-coated transition metal chalcogenide (TMC) nanomaterials are provided herein. In particular, provided herein are two-dimensional polymer-coated TMC nanomaterials having excellent antimicrobial properties and biocompatibility, as well as methods of inhibiting microbiological growth on, or in, devices coated by or otherwise comprising the biocompatible polymer-coated transition metal chalcogenide (TMC) nanomaterials. In some cases, the biopolymer coating encapsulating the TMC nanomaterial comprises short synthetic single-stranded DNAs (ssDNAs). As described herein, ssDNA-encapsulated TMDCs exhibit no cytotoxicity against human cell lines at concentrations up to 0.25 mg/mL, but they exhibit exceptionally strong bactericidal activity against both gram-positive and gram-negative bacteria, including antibiotic-resistant and a gram-positive methicillin-resistant (MRSA) strain. In other cases, TMDCs encapsulated by poly-L-lysine and Pluronic F77 display strong activity against multi drug resistance bacteria and form coatings that strongly inhibit bacterial biofilms, while TMDCs encapsulated by chitosan exhibit strong activity against fungi.

US Patent:

20200377727, Dec 3, 2020

Filed:

Mar 27, 2020

Appl. No.:

16/832225

Inventors:

Alexander A. Green - Scottsdale AZ, US
Matthew Gilliam - Tempe AZ, US
Ahmed Yousaf - Hillsboro OR, US
Qing Hua Wang - Scottsdale AZ, US

International Classification:

C08L 83/04
C08K 3/38
C08G 77/56

Abstract:

A polymerizable composition for 3D printing includes a photocurable polymer resin and metal diboride nanosheets. The resulting polymer nanocomposite includes a polymer matrix and metal diboride nanosheets dispersed throughout the polymer matrix. A method of synthesizing a nanomaterial-containing resin for 3D printing includes preparing a dispersion of metal diboride nanosheets in a solvent, and combining the dispersion with a liquid polymer resin to yield the nanomaterial-containing resin. A method of fabricating a nanocomposite structure from the nanomaterial-containing resin includes providing the nanomaterial-containing resin to a three-dimensional printer, forming a three-dimensional structure with the three-dimensional printer, and processing the three-dimensional structure to yield the nanocomposite structure.

US Patent:

20190144305, May 16, 2019

Filed:

Nov 14, 2018

Appl. No.:

16/191006

Inventors:

Qing Hua Wang - Scottsdale AZ, US
Duo Li - Tempe AZ, US
Matthew Gilliam - Tempe AZ, US
Alexander A. Green - Scottsdale AZ, US

International Classification:

C02F 1/28
B01J 20/02
B01J 20/26
B01J 20/24
B01J 20/28
B01J 20/30

Abstract:

Removing heavy metal ions from an aqueous composition includes contacting an aqueous composition including a heavy metal with nanoflakes comprising MoSfor a length of time sufficient to form nanoclusters of the heavy metal on the nanoflakes. A composite may include a porous polymeric matrix and MoSnanoflakes coupled to the porous polymeric matrix. Making a porous MoS-polymer composite may include combining a solution phase dispersion of MoSwith a polymer precursor solution to yield a mixture, treating the polymer precursor solution to yield a composite precursor, and drying the composite precursor to yield a porous MoS-polymer composite.

Author:

Qing Wang

ISBN #:

3540341994

Author:

Qing Wang

ISBN #:

3540724257