TY - JOUR
T1 - Using Good's Buffers to Control the Anisotropic Structure and Optical Properties of Spiky Gold Nanoparticles for Refractive Index Sensing
AU - Pallares, Roger M.
AU - Stilson, Terrence
AU - Choo, Priscilla
AU - Hu, Jingtian
AU - Odom, Teri W.
N1 - Publisher Copyright:
Copyright © 2019 American Chemical Society.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2019/8/23
Y1 - 2019/8/23
N2 - Spiky gold nanoparticles show structure-tunable optical properties. Most synthetic procedures, however, cannot independently manipulate the overall particle shape, core size, and spike features. Furthermore, conventional protocols rely on cytotoxic and/or strongly bound surfactants that limit applications. This paper reports a set of parameters to manipulate the anisotropic features of spiky gold nanoparticles grown by using different biocompatible Good's buffers through a seed-mediated synthesis. Spike dimensions were preserved even when large seeds (up to 100 nm) were used. Finally, we obtained particles with high sensitivity to changes in the refractive index of the surroundings by tuning the spike length and width.
AB - Spiky gold nanoparticles show structure-tunable optical properties. Most synthetic procedures, however, cannot independently manipulate the overall particle shape, core size, and spike features. Furthermore, conventional protocols rely on cytotoxic and/or strongly bound surfactants that limit applications. This paper reports a set of parameters to manipulate the anisotropic features of spiky gold nanoparticles grown by using different biocompatible Good's buffers through a seed-mediated synthesis. Spike dimensions were preserved even when large seeds (up to 100 nm) were used. Finally, we obtained particles with high sensitivity to changes in the refractive index of the surroundings by tuning the spike length and width.
KW - Good's buffers
KW - anisotropic gold nanoparticles
KW - gold nanostars
KW - nanoparticle synthesis
KW - refractive index sensitivity
KW - spiky gold nanoparticles
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U2 - 10.1021/acsanm.9b01117
DO - 10.1021/acsanm.9b01117
M3 - Article
AN - SCOPUS:85075816481
VL - 2
SP - 5266
EP - 5271
JO - ACS Applied Nano Materials
JF - ACS Applied Nano Materials
SN - 2574-0970
IS - 8
ER -