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@article{Xianyu:2021:10.1002/anie.202017317,
author = {Xianyu, Y and Lin, Y and Chen, Q and Belessiotis-Richards, A and Stevens, M and Thomas, M},
doi = {10.1002/anie.202017317},
journal = {Angewandte Chemie International Edition},
pages = {9891--9896},
title = {Iodide-mediated rapid and sensitive surface etching of gold nanostars for biosensing},
url = {http://dx.doi.org/10.1002/anie.202017317},
volume = {60},
year = {2021}
}

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TY  - JOUR
AB  - Iodidemediated surface etching can tailor the surface plasmon resonance of gold nanostars through etching of the highenergy facets of the nanoparticle protrusions in a rapid and sensitive way. By exploring the underlying mechanisms of this etching and the key parameters influencing it (such as iodide, oxygen, pH, and temperature), we show its potential in a sensitive biosensing system. Horseradish peroxidasecatalyzed oxidation of iodide enables control of the etching of gold nanostars to spherical gold nanoparticles, where the resulting spectral shift in the surface plasmon resonance yields a distinct color change of the solution. We further develop this enzymemodulated surface etching of gold nanostars into a versatile platform for plasmonic immunoassays, where a high sensitivity is possible by signal amplification via magnetic beads and click chemistry.
AU  - Xianyu,Y
AU  - Lin,Y
AU  - Chen,Q
AU  - Belessiotis-Richards,A
AU  - Stevens,M
AU  - Thomas,M
DO  - 10.1002/anie.202017317
EP  - 9896
PY  - 2021///
SN  - 1433-7851
SP  - 9891
TI  - Iodide-mediated rapid and sensitive surface etching of gold nanostars for biosensing
T2  - Angewandte Chemie International Edition
UR  - http://dx.doi.org/10.1002/anie.202017317
UR  - http://hdl.handle.net/10044/1/88020
VL  - 60
ER  -

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