Journal
PLASMONICS
Volume 1, Issue 2-4, Pages 103-110Publisher
SPRINGER
DOI: 10.1007/s11468-006-9018-3
Keywords
metal enhanced fluorescence; Odyssey; near-infrared; silver island film; IRDye((R))700; IRDye((R))800
Ask authors/readers for more resources
Near-infrared (near-IR) excitation produces little background signal from biological molecules, making near-IR fluorescence technology highly useful in proteomic and genomic applications. To increase the emissions of near-IR fluorophores, we examined the use of metal-enhanced fluorescence on these longer wavelength dyes. IRDye((R))700 and IRDye((R))800-labeled DNA oligonucleotides and proteins were spotted onto silver island film (SIF)-coated glass slides, and analyzed using a LI-COR Odyssey((R)) IR imaging system. We observed more than 18-fold enhancement of the IRDye((R))700 and 15-fold enhancement of the IRDye((R))800-labeled DNA oligonucleotides when spotted on SIF-coated surfaces compared with uncoated surfaces. We also demonstrated that the enhanced emissions produced on the SIF-coated slides remained linear over several orders of magnitude, that the emissions remained reproducible across a slide surface, and that the SIF-coated slide remained effective at enhancing emissions after 9 months of storage. Our results indicate that SIF-coated glass slides are effective at enhancing near-IR fluorescence and could be developed into an effective tool to aid in molecular biological applications.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available