The DOI matches its Crossref record; 25 of the 25 references it cites were found in a registry or an index.
Sensing Characteristics of NIR Localized Surface Plasmon Resonances in Gold Nanorings for Application as Ultrasensitive Biosensors
Abstract
The optical responses of 75-150 nm diameter gold nanorings to changes in local refractive index have been quantified by near-infrared extinction spectroscopy and compared to DDA calculations and an analytical approach. The "bulk" refractive index sensitivities of gold nanorings are substantially (>5 times) larger than those of nanodisks with similar diameters. Nanorings retain a significantly larger sensitivity than nanodisks at the same spectral position, demonstrating a clear shape dependence that may correlate to a systematic difference in the influence of the dielectric substrate. The nanoring bulk refractive index sensitivity scales linearly with plasmon peak position. The spectral sensitivity to thin films of alkanethiols gave a shift of approximately 5.2 nm/CH2 unit while bulk sensitivities as high as 880 nm/RIU were observed, the highest such reported sensitivities. Both bulk and thin dielectric film sensitivities correlated well with theory. Real-time label-free monitoring of protein binding via molecular recognition was demonstrated.
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Cites
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Cited by
Localized surface plasmon resonance: Nanostructures, bioassays and biosensing—A review
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Versatile Solution Phase Triangular Silver Nanoplates for Highly Sensitive Plasmon Resonance Sensing
Charles, D. E., Aherne, D., Gara, M., Ledwith, D. M., Gun’ko, Y. K., Kelly, J. M., Blau, W. J., & Brennan-Fournet, M. E. (2010) · ACS Nano · doi:10.1021/nn9016235 · Cited by 164
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Metadata
- Authors
- Larsson, E. M., Alegret, J., Käll, M., & Sutherland, D. S.
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2007-04-13
- Volume
- 7
- Issue
- 5
- Pages
- 1256-1263
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W2027341576
- Cited by
- 699
- References
- 25
- FWCI
- 24.36
- Type
- journal article
- Language
- en
- Open access
- closed
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- Larsson, E. M., Alegret, J., Käll, M., & Sutherland, D. S. (2007). Sensing Characteristics of NIR Localized Surface Plasmon Resonances in Gold Nanorings for Application as Ultrasensitive Biosensors. Nano Letters. https://doi.org/10.1021/nl0701612
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