Issue 10, 2015
From the journal:

Chemical Communications

SERS optrode as a “fishing rod” to direct pre-concentrate analytes from superhydrophobic surfaces†

Meikun Fan,*a   Fansheng Cheng,b   Cong Wang,b   Zhengjun Gong,a   Changyu Tang,b   Changzhen Manb  and  Alexandre G. Brolo*c  

* Corresponding authors

a Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu, China
E-mail: meikunfan@gmail.com

b Chengdu Green Energy and Green Manufacturing R&D Centre, Chengdu, Sichuan, China

c Department of chemistry, University of Victoria, BC, Canada
E-mail: agbrolo@uvic.ca

Abstract

SERS optrodes were used to “fish” aqueous drops from superhydrophobic surfaces. The technique led to an improvement of 2–3 orders of magnitude in the lowest detectable amount of the Raman probe nile blue A, reaching 25 fg (34 attomoles). Further tests run on samples containing pesticide revealed that 20 pg of triazophos could be clearly detected from a single drop.

Graphical abstract: SERS optrode as a “fishing rod” to direct pre-concentrate analytes from superhydrophobic surfaces

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Article information

DOI
https://doi.org/10.1039/C4CC07928K
Article type
Communication
Submitted
09 Oct 2014
Accepted
15 Dec 2014
First published
15 Dec 2014

Chem. Commun., 2015,51, 1965-1968

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SERS optrode as a “fishing rod” to direct pre-concentrate analytes from superhydrophobic surfaces

M. Fan, F. Cheng, C. Wang, Z. Gong, C. Tang, C. Man and A. G. Brolo, Chem. Commun., 2015, 51, 1965 DOI: 10.1039/C4CC07928K

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