Next Article in Journal
Fuzzy-Based Dynamic Time Slot Allocation for Wireless Body Area Networks
Next Article in Special Issue
A Simple and Label-Free Detection of As3+ using 3-nitro-L-tyrosine as an As3+-chelating Ligand
Previous Article in Journal
Lateral Motion Prediction of On-Road Preceding Vehicles: A Data-Driven Approach
Previous Article in Special Issue
Multiplexed Ultra-Sensitive Detection of Cr(III) and Cr(VI) Ion by FET Sensor Array in a Liquid Medium
Open AccessArticle

Preparation of Selective and Reproducible SERS Sensors of Hg2+ Ions via a Sunlight-Induced Thiol–Yne Reaction on Gold Gratings

Department of Solid State Engineering, University of Chemistry and Technology, 16628 Prague, Czech Republic
Research School of Chemistry and Applied Biomedical Sciences, Tomsk Polytechnic University, Tomsk 634050, Russian
ICMPE (UMR 7182), CNRS, UPEC, Université Paris Est, F-94320 Thiais, France
Authors to whom correspondence should be addressed.
Sensors 2019, 19(9), 2110;
Received: 11 April 2019 / Revised: 30 April 2019 / Accepted: 2 May 2019 / Published: 7 May 2019
(This article belongs to the Special Issue Advanced Sensors for the Detection of Heavy Metals)
In this contribution, we propose a novel functional surface-enhanced Raman spectroscopy (SERS) platform for the detection of one of the most hazardous heavy metal ions, Hg2+. The design of the proposed sensor is based on the combination of surface plasmon-polariton (SPP) supporting gold grating with the high homogeneity of the response and enhancement and mercaptosuccinic acid (MSA) based specific recognition layer. For the first time, diazonium grafted 4-ethynylphenyl groups have undergone the sunlight-induced thiol–yne reaction with MSA in the presence of Eosine Y. The developed SERS platform provides an extremely sensitive, selective, and convenient analytical procedure to detect mercury ions with limit of detection (LOD) as low as 10−10 M (0.027 µg/L) with excellent selectivity over other metals. The developed SERS sensor is compatible with a portable SERS spectrophotometer and does not require the expensive equipment for statistical methods of analysis. View Full-Text
Keywords: SERS; surface modification; Hg2+ sensors; water analysis SERS; surface modification; Hg2+ sensors; water analysis
Show Figures

Figure 1

MDPI and ACS Style

Guselnikova, O.; Svorcik, V.; Lyutakov, O.; Chehimi, M.M.; Postnikov, P.S. Preparation of Selective and Reproducible SERS Sensors of Hg2+ Ions via a Sunlight-Induced Thiol–Yne Reaction on Gold Gratings. Sensors 2019, 19, 2110.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

Back to TopTop