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FBO DAILY ISSUE OF FEBRUARY 20, 2009 FBO #2643
SOURCES SOUGHT

A -- CALCULATIONS OF METAL NANOPARTICLE-FLUOROPHORE INTERACTIONS

Notice Date
2/18/2009
 
Notice Type
Sources Sought
 
NAICS
541712 — Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)
 
Contracting Office
Department of Energy, National Security Technologies LLC (DOE Contractor), National Security Technologies LLC, PO Box 98521, Las Vegas, Nevada, 89193
 
ZIP Code
89193
 
Solicitation Number
02182009-CK-MEF
 
Response Due
3/2/2009
 
Archive Date
3/17/2009
 
Point of Contact
Jeanette L Matthews, Phone: 702-295-2700
 
E-Mail Address
matthejl@nv.doe.gov
 
Small Business Set-Aside
N/A
 
Description
We require calculations of metal nanoparticle-fluorophore interactions in the near-field (distances smaller than the wavelength of incident UV-optical light) based on expertise in the area of metal enhanced fluorescence (MEF). In order to determine the best metal nanoparticle and theoretical enhancement attainable with a specified fluorophore the subcontractor shall use the most applicable method (e.g., discrete dipole approximation (DDA) or finite-difference time-domain (FDTD)) to calculate the best atomic metal, and particle shape and size for optimal enhancement of fluorescence in a medium specified by NSTec. Since it is understood that the optimal structure may not be the most practical for synthesis, simulations shall also be performed for metal particles with size and shape deemed appropriate based on the prior calculations. An estimate of the electromagnetic field enhancement with distance “d” from the metal particles should also be reported for both optimally sized and shaped metal nanoparticles (MNPs), and for MNPs which can be synthesized using the calculations as a guide. The far-field optical cross-section of the metal particles shall also be calculated. OPTION 1: If calculations indicate that sufficient fluorophore enhancement can be achieved, then the subcontractor shall synthesize and characterize appropriately sized and shaped metal nanoparticles for testing of the concept. I. Requirements / Specifications The subcontractor must have significant expertise in performing calculations to predict the near-field interactions between fluorophores and metals using Mie theory, discrete dipole approximation (DDA) and finite-difference time-domain (FDTD) methods. The subcontractor must be an expert in the field of metal enhanced fluorescence (MEF) as exemplified by a strong record of publications in the field. The subcontractor must have facilities and expertise which permit design and fabrication of appropriately sized and shaped metal nanoparticles (with a protective coating of appropriate thickness) and the subcontractor must also be able to characterize the metal nanoparticle-fluorophore system. It is critical that the subcontractor address and communicate any concerns that arise. II. Deliverables The deliverable is a report which describes the method (e.g., discrete dipole approximation (DDA) and/or finite-difference time-domain (FDTD)), parameters and results (and confidence) of the calculations described in the scope of work. The report will include a practical recommendation as to the best metal nanoparticles (including shape and size) for optimal fluorophore enhancement. The near-field electromagnetic field enhancement vs. distance will be tabulated and the far-field optical cross-section vs. wavelength of the metal particles will be reported. The report will be completed according to the attached deliverables schedule. OPTION 1: The first deliverable will be a prototype metal nanoparticle structure, to be used for testing by NSTec, based on the properties indicated as optimal by the calculations. It is understood that the optimal structure may not be the most practical for synthesis, therefore simulations will be used to guide synthesis. The structure will be either a thin film or a suspension of metal nanoparticles. This will be decided after conversations with NSTec. The second deliverable will be a report characterizing the metal nanoparticle fluorophore system, including particle size, absorbance, and observed emission enhancement from the fluorophore specified by calculations. Interested parties need to provide evidence of capability and experience by providing a capability statement & relivant experience statments. Send via email to matthejl@nv.doe.gov.
 
Web Link
FedBizOpps Complete View
(https://www.fbo.gov/?s=opportunity&mode=form&id=8e4a3d9811afc6a932bea3bf6e187ffd&tab=core&_cview=1)
 
Place of Performance
Address: Special Technologies Laboratory, 5520 Ekwill Street, Suite B, Santa Barbara, California, 93111, United States
Zip Code: 93111
 
Record
SN01752752-W 20090220/090218220734-8e4a3d9811afc6a932bea3bf6e187ffd (fbodaily.com)
 
Source
FedBizOpps Link to This Notice
(may not be valid after Archive Date)

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