Patents by Inventor Subramanian T. Selvan

Subramanian T. Selvan 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).

  • Patent number: 8790633
    Abstract: The invention relates to a polymer comprising a segment of Formula (I): wherein, R is either absent or a linking group, n is an integer greater than 0; and m is an integer from 1 to 6.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: July 29, 2014
    Assignee: Agency for Science, Technology and Research
    Inventors: Jackie Y. Ying, Subramanian T. Selvan, Nandanan Erathodiyil, Alex Wei Haw Lin
  • Publication number: 20120276016
    Abstract: The invention relates to a polymer comprising a segment of Formula (I): wherein, R is either absent or a linking group, n is an integer greater than 0; and m is an integer from 1 to 6.
    Type: Application
    Filed: October 28, 2010
    Publication date: November 1, 2012
    Applicant: Agency for Science, Technology and Research
    Inventors: Jackie Y. Ying, Subramanian T. Selvan, Nandanan Erathodiyil, Alex Wei Haw Lin
  • Publication number: 20110073811
    Abstract: Nanoparticles and methods of making nanoparticles are provided. The nanoparticles may include semiconductor nanocrystals. A shell may encapsulate a nanoparticle core, and the shell may include non-organic material and may be silica. The shell may also include additional species such as PEG. In some embodiments, a passivation layer is in contact with the core.
    Type: Application
    Filed: September 23, 2010
    Publication date: March 31, 2011
    Applicant: Agency for Science, Technology and Research
    Inventors: Jackie Y. Ying, Subramanian T. Selvan, Timothy T. Tan
  • Patent number: 7824731
    Abstract: Nanoparticles and methods of making nanoparticles are provided. The nanoparticles may include semiconductor nanocrystals. A shell may encapsulate a nanoparticle core, and the shell may include non-organic material and may be silica. The shell may also include additional species such as PEG. In some embodiments, a passivation layer is in contact with the core.
    Type: Grant
    Filed: June 23, 2008
    Date of Patent: November 2, 2010
    Assignee: Agency for Science, Technology and Research
    Inventors: Jackie Y. Ying, Subramanian T. Selvan, Timothy T. Tan
  • Publication number: 20090280327
    Abstract: Composites and methods associated with the same are provided. The composite structures are formed of quantum dots and magnetic nanoparticles. The structures may be coated, for example, with a non-organic shell such as silica. In some cases, the shell may be functionalized or derivatized to include compounds, atoms, or materials that can alter or improve properties such as water solubility, water stability, photo-stability and biocompatibility. A reverse microemulsion process can be used to form the coated composites. The composition and other characteristics of the composites may be controlled to provide desired magnetic and optical properties. The structures may be used in a variety of applications including biological labeling, magnetic resonance imagine (MRI) and drug targeting, amongst others.
    Type: Application
    Filed: April 9, 2009
    Publication date: November 12, 2009
    Applicant: Agency for Science, Technology and Research
    Inventors: Jackie Y. Ying, Subramanian T. Selvan, Dong Kee Yi, Su Seong Lee
  • Patent number: 7534489
    Abstract: Composites and methods associated with the same are provided. The composite structures are formed of quantum dots and magnetic nanoparticles. The structures may be coated, for example, with a non-organic shell such as silica. In some cases, the shell may be functionalized or derivatized to include compounds, atoms, or materials that can alter or improve properties such as water solubility, water stability, photo-stability and biocompatibility. A reverse microemulsion process can be used to form the coated composites. The composition and other characteristics of the composites may be controlled to provide desired magnetic and optical properties. The structures may be used in a variety of applications including biological labeling, magnetic resonance imagine (MRI) and drug targeting, amongst others.
    Type: Grant
    Filed: September 24, 2004
    Date of Patent: May 19, 2009
    Assignee: Agency for Science, Technology and Research
    Inventors: Jackie Y. Ying, Subramanian T. Selvan, Dong Kee Yi, Su Seong Lee
  • Publication number: 20080258115
    Abstract: Nanoparticles and methods of making nanoparticles are provided. The nanoparticles may include semiconductor nanocrystals. A shell may encapsulate a nanoparticle core, and the shell may include non-organic material and may be silica. The shell may also include additional species such as PEG. In some embodiments, a passivation layer is in contact with the core.
    Type: Application
    Filed: June 23, 2008
    Publication date: October 23, 2008
    Applicant: Singapore Agency for Science, Technology and Research
    Inventors: Jackie Y. Ying, Subramanian T. Selvan, Timothy T. Tan
  • Patent number: 7405002
    Abstract: Nanoparticles and methods of making nanoparticles are provided. The nanoparticles may include semiconductor nanocrystals. A shell may encapsulate a nanoparticle core, and the shell may include non-organic material and may be silica. The shell may also include additional species such as PEG. In some embodiments, a passivation layer is in contact with the core.
    Type: Grant
    Filed: August 4, 2004
    Date of Patent: July 29, 2008
    Assignee: Agency for Science, Technology and Research
    Inventors: Jackie Y. Ying, Subramanian T. Selvan, Timothy T. Tan