Synthesis of Colloidal Gold Nanorods with Plasmon Absorbance Wavelength in the Near Infrared Region

Luis M. Angelats-Silva; David Asmat-Campos; Henry León-León; Kevin A. Wilkinson; Daniel A. Sánchez-Vaca; Alcides López-Milla

doi:10.1557/adv.2016.486

Synthesis of Colloidal Gold Nanorods with Plasmon Absorbance Wavelength in the Near Infrared Region

Luis M. Angelats-Silva
, David Asmat-Campos
, Henry León-León
, Kevin A. Wilkinson
, Daniel A. Sánchez-Vaca
, Alcides López-Milla

Universidad Privada Antenor Orrego
Universidad Nacional del Santa
Universidad Nacional de Ingeniería, Peru

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

We report preparation and characterization of colloidal gold nanorods (AuNR) with plasmon absorbance over 950 nm and an aspect ratio of 7.2 by tuning silver nitrate concentration and the CTAB/BDAC ratio during growth. Samples were analyzed by scanning transmission electron microscopy, X-ray diffraction, UV-vis absorption spectroscopy and measurement of zeta potential. Addition of 170 μM silver nitrate to the CTAB-containing reaction mixture allowed preparation of AuNRs with a maximum absorbance peak at 941.8 nm and a yield around 96%. Optimization of the BDAC/CTAB ratio allowed for a further redshift of the absorbance maximum to 954.0 nm, but with poorer yields.

Original language	English
Pages (from-to)	2181-2186
Number of pages	6
Journal	MRS Advances
Volume	1
Issue number	30
DOIs	https://doi.org/10.1557/adv.2016.486
State	Published - 2016
Externally published	Yes

Keywords

Au
chemical synthesis
colloid

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10.1557/adv.2016.486

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@article{fe990d2070c64b21b5c25791acf1fd6c,

title = "Synthesis of Colloidal Gold Nanorods with Plasmon Absorbance Wavelength in the Near Infrared Region",

abstract = "We report preparation and characterization of colloidal gold nanorods (AuNR) with plasmon absorbance over 950 nm and an aspect ratio of 7.2 by tuning silver nitrate concentration and the CTAB/BDAC ratio during growth. Samples were analyzed by scanning transmission electron microscopy, X-ray diffraction, UV-vis absorption spectroscopy and measurement of zeta potential. Addition of 170 μM silver nitrate to the CTAB-containing reaction mixture allowed preparation of AuNRs with a maximum absorbance peak at 941.8 nm and a yield around 96\%. Optimization of the BDAC/CTAB ratio allowed for a further redshift of the absorbance maximum to 954.0 nm, but with poorer yields.",

keywords = "Au, chemical synthesis, colloid",

author = "Angelats-Silva, \{Luis M.\} and David Asmat-Campos and Henry Le{\'o}n-Le{\'o}n and Wilkinson, \{Kevin A.\} and S{\'a}nchez-Vaca, \{Daniel A.\} and Alcides L{\'o}pez-Milla",

note = "Publisher Copyright: Copyright {\textcopyright} Materials Research Society 2016.",

year = "2016",

doi = "10.1557/adv.2016.486",

language = "English",

volume = "1",

pages = "2181--2186",

number = "30",

}

TY - JOUR

T1 - Synthesis of Colloidal Gold Nanorods with Plasmon Absorbance Wavelength in the Near Infrared Region

AU - Angelats-Silva, Luis M.

AU - Asmat-Campos, David

AU - León-León, Henry

AU - Wilkinson, Kevin A.

AU - Sánchez-Vaca, Daniel A.

AU - López-Milla, Alcides

PY - 2016

Y1 - 2016

N2 - We report preparation and characterization of colloidal gold nanorods (AuNR) with plasmon absorbance over 950 nm and an aspect ratio of 7.2 by tuning silver nitrate concentration and the CTAB/BDAC ratio during growth. Samples were analyzed by scanning transmission electron microscopy, X-ray diffraction, UV-vis absorption spectroscopy and measurement of zeta potential. Addition of 170 μM silver nitrate to the CTAB-containing reaction mixture allowed preparation of AuNRs with a maximum absorbance peak at 941.8 nm and a yield around 96%. Optimization of the BDAC/CTAB ratio allowed for a further redshift of the absorbance maximum to 954.0 nm, but with poorer yields.

AB - We report preparation and characterization of colloidal gold nanorods (AuNR) with plasmon absorbance over 950 nm and an aspect ratio of 7.2 by tuning silver nitrate concentration and the CTAB/BDAC ratio during growth. Samples were analyzed by scanning transmission electron microscopy, X-ray diffraction, UV-vis absorption spectroscopy and measurement of zeta potential. Addition of 170 μM silver nitrate to the CTAB-containing reaction mixture allowed preparation of AuNRs with a maximum absorbance peak at 941.8 nm and a yield around 96%. Optimization of the BDAC/CTAB ratio allowed for a further redshift of the absorbance maximum to 954.0 nm, but with poorer yields.

KW - Au

KW - chemical synthesis

KW - colloid

UR - https://www.scopus.com/pages/publications/85041591989

U2 - 10.1557/adv.2016.486

DO - 10.1557/adv.2016.486

M3 - Article

AN - SCOPUS:85041591989

VL - 1

SP - 2181

EP - 2186

JO - MRS Advances

JF - MRS Advances

IS - 30

ER -

Synthesis of Colloidal Gold Nanorods with Plasmon Absorbance Wavelength in the Near Infrared Region

Abstract

Keywords

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