Measurement of the localised plasmon penetration depth for gold nanoparticles using a non-invasive bio-stacking method.
Measurement of the localised plasmon penetration depth for gold nanoparticles using a non-invasive bio-stacking method.
复制标题
使用非侵入性生物堆积方法测量金纳米粒子的局部等离子体穿透深度。
DOI:
10.1039/c3cp50758k
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发表时间:
2013
期刊:
影响因子:
--
通讯作者:
Read T
中科院分区:
文献类型:
--
作者:
Read T
We have used the formation of a bio-probe stack with up to 24 steps on gold nanoparticle and continuous gold surfaces to characterize the penetration depth of the plasmon field in a non-invasive manner by only involving biomolecules from standard bio-assays. An alternating anti-goat rabbit IgG and anti-rabbit IgG bio-probe stack is polymerized on protein A/G functionalized gold surfaces. The change in plasmon excitation angle or light scattering decreases exponentially with each stacking step although the bio-integrity of the antibody epitope is maintained. The exponential decay in the derived kinetic parameters is attributed to the change in the penetration depth and the step size is calibrated using a commercial continuous gold surface plasmon resonance surface to be 17.5 ± 0.8 nm, consistent with the expected dimension of the antibody. The penetration depth of the gold spherical nanoparticles of diameter 90 ± 13 nm is determined to be 93 ± 10 nm.
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影响因子:
12.6
作者:
R. Olkhov;A. M. Shaw
通讯作者:
R. Olkhov;A. M. Shaw
影响因子:
2.9
作者:
R. Olkhov;Jeremy D Fowke;A. M. Shaw
通讯作者:
A. M. Shaw
影响因子:
2.9
作者:
Olkhov, Rouslan V.;Shaw, Andrew M.
通讯作者:
Shaw, Andrew M.
影响因子:
2.2
作者:
ALLAUZEN, S;MANI, JC;BOUANANI, M
通讯作者:
BOUANANI, M
DOI:
10.1042/bj3110283
发表时间:
1995
期刊:
The Biochemical journal
影响因子:
--
作者:
M. Mayans;W. John;J Coadwell;D. Beale;Derek B. A. SYMONSt;J. Stephen;Perkins
通讯作者:
Perkins