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Spectroscopy of Single Hemoglobin Molecules by Surface Enhanced Raman Scattering
Abstract
We demonstrate the detection of molecular vibrations in single hemoglobin (Hb) protein molecules attached to isolated and immobilized silver nanoparticles by surface enhanced Raman scattering (SERS). A comparison between calculation and experiment indicates that electromagnetic field effects dominate the surface enhancement, and that single molecule Hb SERS is possible only for molecules situated between Ag particles. The vibrational spectra exhibit temporal fluctuations of unknown origin which appear to be characteristic of the single molecule detection limit.
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Cites
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Nanoplasmonics: Past, present, and glimpse into future
Stockman, M. I. (2011) · Optics Express · doi:10.1364/oe.19.022029 · Cited by 1,109
Resonant Plasmonic and Vibrational Coupling in a Tailored Nanoantenna for Infrared Detection
Neubrech, F., Pucci, A., Cornelius, T. W., Karim, S., García-Etxarri, A., & Aizpurua, J. (2008) · Physical Review Letters · doi:10.1103/physrevlett.101.157403 · Cited by 743
Photochemistry on Metal Nanoparticles
Watanabe, K., Menzel, D., Nilius, N., & Freund, H.-J. (2006) · Chemical Reviews · doi:10.1021/cr050167g · Cited by 486
Surface-enhanced Raman spectroscopy at single-molecule scale and its implications in biology
Wang, Y., & Irudayaraj, J. (2013) · Philosophical Transactions of the Royal Society B: Biological Sciences · doi:10.1098/rstb.2012.0026 · Cited by 125
Kang, T., Yoo, S. M., Kang, M., Lee, H., Kim, H., Lee, S. Y., & Kim, B. (2012) · Lab on a Chip · doi:10.1039/c2lc40185a · Cited by 68
Ion-Specific Effects on Laser Ablation of Silver in Aqueous Electrolyte Solutions
Šišková, K., Vlčková, B., Turpin, P. Y., & Fayet, C. (2008) · The Journal of Physical Chemistry C · doi:10.1021/jp076680a · Cited by 34
Complex nanostructures synthesized from nanoparticle colloids under an external electric field
Liu, P., Yang, S., Fang, M., Luo, X., & Cai, W. (2011) · Nanoscale · doi:10.1039/c1nr10808e · Cited by 15
Metadata
- Authors
- Xu, H., Bjerneld, E. J., Käll, M., & Börjesson, L.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 1999-11-22
- Volume
- 83
- Issue
- 21
- Pages
- 4357-4360
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2155462488
- Cited by
- 2,362
- References
- 1
- FWCI
- 17.20
- Type
- journal article
- Language
- en
- Open access
- closed
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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