Issue 41, 2017, Issue in Progress

Facile synthesis of Au/Al2O3 nanocomposites for improving the detection sensitivity of adenosine triphosphate

Abstract

Alumina is widely recognized as chemically inert, and resistant to oxidation and high temperature. In this study, Au/Al2O3 nanocomposites (NCs) were prepared by a facile method and were used as a surface enhanced Raman scattering (SERS) substrate for detection of adenosine triphosphate (ATP). This Au/Al2O3-based SERS substrate demonstrated good sensitivity with the lowest detectable concentration of 5 × 10−9 M for ATP and a good linear relationship ranging from 5 × 10−5 to 5 × 10−9 M. The strategy of improvement of SERS detection sensitivity for ATP was based on the consideration of ATP captured by such SERS substrate via chelation of aluminum and phosphates, which was validated by X-ray photoelectron spectroscopy. In addition, alumina as a supporting material could be expected to prolong the stability of such a SERS substrate.

Graphical abstract: Facile synthesis of Au/Al2O3 nanocomposites for improving the detection sensitivity of adenosine triphosphate

Supplementary files

Article information

Article type
Paper
Submitted
30 Mar 2017
Accepted
26 Apr 2017
First published
15 May 2017
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2017,7, 25746-25752

Facile synthesis of Au/Al2O3 nanocomposites for improving the detection sensitivity of adenosine triphosphate

L. Xu, Q. Xu, X. Guo, Y. Ying, Y. Wu, Y. Wen and H. Yang, RSC Adv., 2017, 7, 25746 DOI: 10.1039/C7RA03683C

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