Patents by Inventor Subramanian Selvan

Subramanian 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).

  • Publication number: 20060068203
    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: September 24, 2004
    Publication date: March 30, 2006
    Applicant: Agency for Science, Technology and Research
    Inventors: Jackie Ying, Subramanian Selvan, Dong Yi, Su Lee
  • Publication number: 20060029802
    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: August 4, 2004
    Publication date: February 9, 2006
    Inventors: Jackie Ying, Subramanian Selvan, Timothy Tan