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Enhanced thermal stability of silica-coated gold nanorods for photoacoustic imaging and image-guided therapy
Open accessAbstract
Photothermal stability and, therefore, consistency of both optical absorption and photoacoustic response of the plasmonic nanoabsorbers is critical for successful photoacoustic image-guided photothermal therapy. In this study, silica-coated gold nanorods were developed as a multifunctional molecular imaging and therapeutic agent suitable for image-guided photothermal therapy. The optical properties and photothermal stability of silica-coated gold nanorods under intense irradiation with nanosecond laser pulses were investigated by UV-Vis spectroscopy and transmission electron microscopy. Silica-coated gold nanorods showed increased photothermal stability and retained their superior optical properties under much higher fluences. The changes in photoacoustic response of PEGylated and silica-coated nanorods under laser pulses of various fluences were compared. The silica-coated gold nanorods provide a stable photoacoustic signal, which implies better imaging capabilities and make silica-coated gold nanorods a promising imaging and therapeutic nano-agent for photoacoustic imaging and image-guided photothermal therapy.
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Optical Constants of the Noble Metals
Johnson, P. B., & Christy, R. W. (1972) · Physical Review B · doi:10.1103/physrevb.6.4370 · Cited by 20,094
Cited by
Nanoparticles as contrast agents for in-vivo bioimaging: current status and future perspectives
Hahn, M. A., Singh, A. K., Sharma, P., Brown, S. C., & Moudgil, B. M. (2011) · Analytical and Bioanalytical Chemistry · doi:10.1007/s00216-010-4207-5 · Cited by 485
Moon, H., Kumar, D., Kim, H., Sim, C., Chang, J.-H., Kim, J.-M., Kim, H., & Lim, D.-K. (2015) · ACS Nano · doi:10.1021/nn506516p · Cited by 266
Yu, J., Yang, C., Li, J., Ding, Y., Zhang, L., Yousaf, M. Z., Lin, J., Pang, R., Wei, L., Xu, L., et al. (2014) · Advanced Materials · doi:10.1002/adma.201305811 · Cited by 255
Photothermal transformation of Au–Ag nanocages under pulsed laser irradiation
Hood, Z. D., Kubelick, K. P., Gilroy, K. D., Vanderlaan, D., Yang, X., Yang, M., Chi, M., Emelianov, S. Y., & Xia, Y. (2019) · Nanoscale · doi:10.1039/c8nr10002k · Cited by 32
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Metadata
- Authors
- Chen, Y.-S., Frey, W., Kim, S., Homan, K., Kruizinga, P., Sokolov, K., & Emelianov, S.
- Venue
- Optics Express
- Publisher
- Optica Publishing Group
- Published
- 2010-04-13
- Volume
- 18
- Issue
- 9
- Pages
- 8867
- ISSN
- 1094-4087 (ISSN-L)
- OpenAlex
- W2134963933
- Cited by
- 407
- References
- 1
- FWCI
- 12.01
- Type
- journal article
- Language
- en
- Open access
- gold
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- Chen, Y.-S., Frey, W., Kim, S., Homan, K., Kruizinga, P., Sokolov, K., & Emelianov, S. (2010). Enhanced thermal stability of silica-coated gold nanorods for photoacoustic imaging and image-guided therapy. Optics Express. https://doi.org/10.1364/oe.18.008867
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