Patents by Inventor Weichang Xue

Weichang Xue has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Mesoporous calcium silicate compositions and methods for synthesis of mesoporous calcium silicate for controlled release of bioactive agents
    Patent number: 9539359
    Abstract: Mesoporous calcium silicate compositions for controlled release of bioactive agents and methods for producing such compositions are disclosed herein. In one embodiment, mesoporous calcium silicate is synthesized by acid modification of wollastonite particles using hydrochloric acid. A hydrated silica gel layer having abundant Si—OH functional groups can be formed on the surface of wollastonite after acid modification. Bruhauer-Emmett-Teller (BET) surface area increased significantly due to acid modification and, in one arrangement, reached over 350 m2/g. Acid modified mesoporous calcium silicate compositions show a higher ability to adsorb protein compared to unmodified particles and demonstrate controlled release kinetics of these proteins.
    Type: Grant
    Filed: November 11, 2014
    Date of Patent: January 10, 2017
    Assignee: Washington State University
    Inventors: Susmita Bose, Amit Bandyopadhyay, Weichang Xue
  • Mesoporous calcium silicate compositions and Methods for synthesis of mesoporous calcium silicate for controlled release of bioactive agents
    Publication number: 20150283294
    Abstract: Mesoporous calcium silicate compositions for controlled release of bioactive agents and methods for producing such compositions are disclosed herein. In one embodiment, mesoporous calcium silicate is synthesized by acid modification of wollastonite particles using hydrochloric acid. A hydrated silica gel layer having abundant Si—OH functional groups can be formed on the surface of wollastonite after acid modification. Bruhauer-Emmett-Teller (BET) surface area increased significantly due to acid modification and, in one arrangement, reached over 350 m2/g. Acid modified mesoporous calcium silicate compositions show a higher ability to adsorb protein compared to unmodified particles and demonstrate controlled release kinetics of these proteins.
    Type: Application
    Filed: November 11, 2014
    Publication date: October 8, 2015
    Inventors: Susmita Bose, Amit Bandyopadhyay, Weichang Xue
  • Mesoporous calcium silicate compositions and methods for synthesis of mesoporous calcium silicate for controlled release of bioactive agents
    Patent number: 8916198
    Abstract: Mesoporous calcium silicate compositions for controlled release of bioactive agents and methods for producing such compositions are disclosed herein. In one embodiment, mesoporous calcium silicate is synthesized by acid modification of wollastonite particles using hydrochloric acid. A hydrated silica gel layer having abundant Si—OH functional groups can be formed on the surface of wollastonite after acid modification. Bruhauer-Emmett-Teller (BET) surface area increased significantly due to acid modification and, in one arrangement, reached over 350 m2/g. Acid modified mesoporous calcium silicate compositions show a higher ability to adsorb protein compared to unmodified particles and demonstrate controlled release kinetics of these proteins.
    Type: Grant
    Filed: September 15, 2008
    Date of Patent: December 23, 2014
    Assignee: Washington State University
    Inventors: Susmita Bose, Amit Bandyopadhyay, Weichang Xue
  • MESOPOROUS CALCIUM SILICATE COMPOSITIONS AND METHODS FOR SYNTHESIS OF MESOPOROUS CALCIUM SILICATE FOR CONTROLLED RELEASE OF BIOACTIVE AGENTS
    Publication number: 20090068272
    Abstract: Mesoporous calcium silicate compositions for controlled release of bioactive agents and methods for producing such compositions are disclosed herein. In one embodiment, mesoporous calcium silicate is synthesized by acid modification of wollastonite particles using hydrochloric acid. A hydrated silica gel layer having abundant Si—OH functional groups can be formed on the surface of wollastonite after acid modification. Bruhauer-Emmett-Teller (BET) surface area increased significantly due to acid modification and, in one arrangement, reached over 350 m2/g. Acid modified mesoporous calcium silicate compositions show a higher ability to adsorb protein compared to unmodified particles and demonstrate controlled release kinetics of these proteins.
    Type: Application
    Filed: September 15, 2008
    Publication date: March 12, 2009
    Applicant: Washington State University
    Inventors: Amit Bandyopadhyay, Susmita Bose, Weichang Xue