Patents by Inventor Shu Wen Chew

Shu Wen Chew 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).

  • Method for fabricating a gold nanoparticle
    Patent number: 9925592
    Abstract: The present invention is directed to a method for fabricating a gold nanoparticle, the method comprising the steps of contacting a gold ion with a protein, wherein the protein has an inner cavity that can accommodate the gold ion, separating the protein with the encapsulated gold ion(s) from non-encapsulated gold ions, contacting the protein-encapsulated gold ion with a first reductant to reduce the gold ion and form a gold nanocluster seed in the inner cavity of the protein, wherein the first reductant is a strong reductant, and contacting the gold nanocluster seed in the inner cavity of the protein with a second reductant to mineralize and grow the gold nanoparticle.
    Type: Grant
    Filed: September 26, 2011
    Date of Patent: March 27, 2018
    Assignee: Nanyang Technological University
    Inventors: Brendan Patrick Orner, Rongli Fan, Shu Wen Chew, Vee Vee Cheong
  • METHOD FOR FABRICATING A GOLD NANOPARTICLE
    Publication number: 20120134873
    Abstract: The present invention is directed to a method for fabricating a gold nanoparticle, the method comprising the steps of contacting a gold ion with a protein, wherein the protein has an inner cavity that can accommodate the gold ion, separating the protein with the encapsulated gold ion(s) from non-encapsulated gold ions, contacting the protein-encapsulated gold ion with a first reductant to reduce the gold ion and form a gold nanocluster seed in the inner cavity of the protein, wherein the first reductant is a strong reductant, and contacting the gold nanocluster seed in the inner cavity of the protein with a second reductant to mineralize and grow the gold nanoparticle.
    Type: Application
    Filed: September 26, 2011
    Publication date: May 31, 2012
    Applicant: NANYANG TECHNOLOGICAL UNIVERSITY
    Inventors: Brendan Patrick Orner, Rongli Fan, Shu Wen Chew, Vee Vee Cheong