In solution SERS sensing using mesoporous silica-coated gold nanorods

Zhe Gao, Nathan D. Burrows, Nicholas A. Valley, George C Schatz, Catherine J. Murphy, Christy L. Haynes

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Mesoporous silica-coated gold nanorods (AuNR@MS) act as a colloidally stable Raman sensing platform with a built-in analyte size cutoff. Herein, these core-shell plasmonic nanostructures were presented with a range of thiolated Raman-active molecules to probe the limits of this platform for SERS sensing. The experimental results show generally, that the transport of molecules through the mesopores is highly dependent on the size of the molecule and specifically, that AuNR@MS with pores of ∼4 nm diameter are able to sense analytes with molecular dimensions smaller than 1.5 nm. This sensing platform will likely find broad use, performing well even in complex media based on the high colloidal stability imbued by the mesoporous silica shell.

Original languageEnglish
Pages (from-to)5088-5095
Number of pages8
JournalAnalyst
Volume141
Issue number17
DOIs
Publication statusPublished - Sep 7 2016

Fingerprint

Nanotubes
Nanorods
Silicon Dioxide
Gold
gold
silica
Silica
shell
Molecules
Nanostructures
probe

ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry
  • Environmental Chemistry
  • Spectroscopy
  • Electrochemistry

Cite this

Gao, Z., Burrows, N. D., Valley, N. A., Schatz, G. C., Murphy, C. J., & Haynes, C. L. (2016). In solution SERS sensing using mesoporous silica-coated gold nanorods. Analyst, 141(17), 5088-5095. https://doi.org/10.1039/c6an01159d

In solution SERS sensing using mesoporous silica-coated gold nanorods. / Gao, Zhe; Burrows, Nathan D.; Valley, Nicholas A.; Schatz, George C; Murphy, Catherine J.; Haynes, Christy L.

In: Analyst, Vol. 141, No. 17, 07.09.2016, p. 5088-5095.

Research output: Contribution to journalArticle

Gao, Z, Burrows, ND, Valley, NA, Schatz, GC, Murphy, CJ & Haynes, CL 2016, 'In solution SERS sensing using mesoporous silica-coated gold nanorods', Analyst, vol. 141, no. 17, pp. 5088-5095. https://doi.org/10.1039/c6an01159d
Gao Z, Burrows ND, Valley NA, Schatz GC, Murphy CJ, Haynes CL. In solution SERS sensing using mesoporous silica-coated gold nanorods. Analyst. 2016 Sep 7;141(17):5088-5095. https://doi.org/10.1039/c6an01159d
Gao, Zhe ; Burrows, Nathan D. ; Valley, Nicholas A. ; Schatz, George C ; Murphy, Catherine J. ; Haynes, Christy L. / In solution SERS sensing using mesoporous silica-coated gold nanorods. In: Analyst. 2016 ; Vol. 141, No. 17. pp. 5088-5095.
@article{ed59ae5b9c574c58bc61b2ba2171b3b7,
title = "In solution SERS sensing using mesoporous silica-coated gold nanorods",
abstract = "Mesoporous silica-coated gold nanorods (AuNR@MS) act as a colloidally stable Raman sensing platform with a built-in analyte size cutoff. Herein, these core-shell plasmonic nanostructures were presented with a range of thiolated Raman-active molecules to probe the limits of this platform for SERS sensing. The experimental results show generally, that the transport of molecules through the mesopores is highly dependent on the size of the molecule and specifically, that AuNR@MS with pores of ∼4 nm diameter are able to sense analytes with molecular dimensions smaller than 1.5 nm. This sensing platform will likely find broad use, performing well even in complex media based on the high colloidal stability imbued by the mesoporous silica shell.",
author = "Zhe Gao and Burrows, {Nathan D.} and Valley, {Nicholas A.} and Schatz, {George C} and Murphy, {Catherine J.} and Haynes, {Christy L.}",
year = "2016",
month = "9",
day = "7",
doi = "10.1039/c6an01159d",
language = "English",
volume = "141",
pages = "5088--5095",
journal = "The Analyst",
issn = "0003-2654",
publisher = "Royal Society of Chemistry",
number = "17",

}

TY - JOUR

T1 - In solution SERS sensing using mesoporous silica-coated gold nanorods

AU - Gao, Zhe

AU - Burrows, Nathan D.

AU - Valley, Nicholas A.

AU - Schatz, George C

AU - Murphy, Catherine J.

AU - Haynes, Christy L.

PY - 2016/9/7

Y1 - 2016/9/7

N2 - Mesoporous silica-coated gold nanorods (AuNR@MS) act as a colloidally stable Raman sensing platform with a built-in analyte size cutoff. Herein, these core-shell plasmonic nanostructures were presented with a range of thiolated Raman-active molecules to probe the limits of this platform for SERS sensing. The experimental results show generally, that the transport of molecules through the mesopores is highly dependent on the size of the molecule and specifically, that AuNR@MS with pores of ∼4 nm diameter are able to sense analytes with molecular dimensions smaller than 1.5 nm. This sensing platform will likely find broad use, performing well even in complex media based on the high colloidal stability imbued by the mesoporous silica shell.

AB - Mesoporous silica-coated gold nanorods (AuNR@MS) act as a colloidally stable Raman sensing platform with a built-in analyte size cutoff. Herein, these core-shell plasmonic nanostructures were presented with a range of thiolated Raman-active molecules to probe the limits of this platform for SERS sensing. The experimental results show generally, that the transport of molecules through the mesopores is highly dependent on the size of the molecule and specifically, that AuNR@MS with pores of ∼4 nm diameter are able to sense analytes with molecular dimensions smaller than 1.5 nm. This sensing platform will likely find broad use, performing well even in complex media based on the high colloidal stability imbued by the mesoporous silica shell.

UR - http://www.scopus.com/inward/record.url?scp=84983261828&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84983261828&partnerID=8YFLogxK

U2 - 10.1039/c6an01159d

DO - 10.1039/c6an01159d

M3 - Article

VL - 141

SP - 5088

EP - 5095

JO - The Analyst

JF - The Analyst

SN - 0003-2654

IS - 17

ER -