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Zeptomol Detection Through Controlled Ultrasensitive Surface-Enhanced Raman Scattering
Abstract
SERS permits identifying the nature of molecules in extremely low concentrations, but it is hindered by poor enhancement or low reproducibility. We demonstrate controllable approximately 10(10) signal amplification reaching the zeptomol detection limit for a nonresonant molecule by sandwiching the analyte between the tips of star-shaped gold nanoparticles and a planar gold surface using a simple synthetic procedure. This unprecedented control over light-intensity amplification opens a new avenue toward high-yield, fully reproducible, SERS-based, zeptomol detection and holds promise for nonlinear optics applications at the single-particle level.
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Self-citationTuning Size and Sensing Properties in Colloidal Gold Nanostars
Barbosa, S., Agrawal, A., Rodríguez-Lorenzo, L., Pastoriza-Santos, I., Alvarez-Puebla, R. A., Kornowski, A., Weller, H., & Liz-Marzán, L. M. (2010) · Langmuir · doi:10.1021/la102559e · Cited by 522
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Metadata
- Authors
- Rodríguez-Lorenzo, L., Álvarez-Puebla, R. A., Pastoriza-Santos, I., Mazzucco, S., Stéphan, O., Kociak, M., Liz-Marzán, L. M., & García de Abajo, F. J.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2009-03-17
- Volume
- 131
- Issue
- 13
- Pages
- 4616-4618
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2034446591
- Cited by
- 565
- References
- 0
- FWCI
- 19.42
- Type
- journal article
- Language
- en
- Open access
- closed
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- Rodríguez-Lorenzo, L., Álvarez-Puebla, R. A., Pastoriza-Santos, I., Mazzucco, S., Stéphan, O., Kociak, M., Liz-Marzán, L. M., & García de Abajo, F. J. (2009). Zeptomol Detection Through Controlled Ultrasensitive Surface-Enhanced Raman Scattering. Journal of the American Chemical Society. https://doi.org/10.1021/ja809418t
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