STTR Phase I: Non-Toxic Nanoparticles for BRET-Based Molecular Imaging

Award Information
Agency: National Science Foundation
Branch: N/A
Contract: 0930533
Agency Tracking Number: 0930533
Amount: $150,000.00
Phase: Phase I
Program: STTR
Awards Year: 2009
Solicitation Year: 2009
Solicitation Topic Code: MM
Solicitation Number: NSF 08-608
Small Business Information
5941 Optical Court, San Jose, CA, 95138
DUNS: 171080885
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Sukanta Bhattacharyya
 (650) 515-7897
Business Contact
 Sukanta Bhattacharyya
Title: PhD
Phone: (650) 515-7897
Research Institution
 Carnegie-Mellon University
 Marcel Bruchez
 5000 Forbes Avenue
292 Mellon Institute, Chemistry Dept.
Pittsburgh, PA, 15213-1295
 (412) 268-9661
 Nonprofit college or university
This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5). This Small Business Technology Transfer (STTR) Phase I project will result in the demonstration of non-toxic multi-modality nanoparticle-based molecular probes for in vivo imaging. The objective of the Phase I project is to demonstrate the synthesis and coating of luminescent bismuth sulfide nanoparticles emitting in the near infrared (NIR) for use as multi-modality probes. These probes may be detected by NIR fluorescence emission or as self-illuminated probes through Bioluminescence Resonance Energy Transfer to Luminescent Nanocrystals (BRET-LN). Moreover, bismuth sulfide can be used as a contrast agent for X-ray-based imaging. The presence of toxic metals such as Cd, As, In and Hg in most of the NIR emissive nanoparticles and the relative lack of detailed safety data establish a significant safety barrier for use in humans. Bismuth sulfide is a potentially non-toxic material for bioimaging. Bismuth compounds have been used in pharmaceutical formulations for more than a century to treat maladies such as diarrhea, syphilis, and peptic ulcers. In the U.S., approximately 500 tons of bismuth are used in chemical, cosmetic, and medical products with direct human experience each year. The broader impacts of this research are the development of a sensitive multi-functional molecular imaging probe for use in medical imaging and inter-operative staining procedures. The new probe will ultimately provide a more efficient means to image disease in humans optically, circumventing inherent imaging depth and signal-to-noise limitations of other optical imaging technologies. This capability will translate to the development of important applications such as early cancer detection.

* Information listed above is at the time of submission. *

Agency Micro-sites

SBA logo
Department of Agriculture logo
Department of Commerce logo
Department of Defense logo
Department of Education logo
Department of Energy logo
Department of Health and Human Services logo
Department of Homeland Security logo
Department of Transportation logo
Environmental Protection Agency logo
National Aeronautics and Space Administration logo
National Science Foundation logo
US Flag An Official Website of the United States Government