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Different Plasmon Sensing Behavior of Silver and Gold Nanorods
Abstract
Silver nanorods (AgNRs) of ∼20 nm diameter and different lengths, which were increased up to ∼100 nm by increasing the reduction time, were prepared by a seedless synthetic approach. A linear relationship between the AgNRs aspect ratios and the LSPR peak position was observed experimentally and confirmed theoretically. The Raman signal enhancement by silver nanorods is more efficient than by gold nanorods (AuNRs) because the plasmon field intensity of AgNRs is stronger than that of AuNRs, as shown by the discrete dipole approximation calculation. The Rayleigh scattering by AuNRs is stronger than that by the AgNRs. Therefore, AuNRs are recommended for optical plasmon imaging, while AgNRs are more efficient in plasmon sensing.
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Surface raman spectroelectrochemistry
Jeanmaire, D. L., & Van Duyne, R. P. (1977) · Journal of Electroanalytical Chemistry and Interfacial Electrochemistry · doi:10.1016/s0022-0728(77)80224-6 · Cited by 4,738
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Energy transfer in plasmonic photocatalytic composites
Ma, X.-C., Dai, Y., Yu, L., & Huang, B.-B. (2016) · Light: Science & Applications · doi:10.1038/lsa.2016.17 · Cited by 553
Hang, Y., Wang, A., & Wu, N. (2024) · Chemical Society Reviews · doi:10.1039/d3cs00793f · Cited by 473
Synthesis of Silver Nanoparticles and their Biomedical Applications - A Comprehensive Review
Shanmuganathan, R., Karuppusamy, I., Saravanan, M., Muthukumar, H., Ponnuchamy, K., Ramkumar, V. S., & Pugazhendhi, A. (2019) · Current Pharmaceutical Design · doi:10.2174/1381612825666190708185506 · Cited by 282
Nazemi, M., Panikkanvalappil, S. R., Liao, C.-K., Mahmoud, M. A., & El-Sayed, M. A. (2021) · ACS Nano · doi:10.1021/acsnano.1c02347 · Cited by 41
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Metadata
- Authors
- Mahmoud, M. A., & El-Sayed, M. A.
- Venue
- The Journal of Physical Chemistry Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2013-04-22
- Volume
- 4
- Issue
- 9
- Pages
- 1541-1545
- ISSN
- 1948-7185 (ISSN-L)
- OpenAlex
- W2321309499
- Cited by
- 167
- References
- 1
- FWCI
- 6.59
- Type
- journal article
- Language
- en
- Open access
- closed
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