A SERS nanocatalytic reaction and its application to quantitative analysis of trace Hg(<scp>ii</scp>) with Vitoria blue B molecular probe

Liang, Aihui; Guangyun, Shang; Ye, Lingling; Wen, Guiqing; Luo, Yanghe; Liu, Qingye; Zhang, Xinghui

doi:10.1039/c4ra16110f

Cited by 13 publications

(1 citation statement)

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“…Nanomaterials, especially those comprising noble metals and carbon nanomaterials, have novel spectral, electric, magnetic, thermal, and chemical properties (Gao et al, 2007 ; Kotov, 2010 ; Wei and Wang, 2013 ). Because noble metal nanomaterials, such as AuNPs and AgNPs, possess both catalytic activity and SERS activity, they have drawn attention (Jiang et al, 2008 , 2010a , b ; Liang et al, 2011 , 2015 ; Yao et al, 2013 ). Carbon-based nanomaterials have abundant conjugated π bonds (C=C), which are characterized by high electron density, delocalization, and electron transfer ability (Krätschmer et al, 1990 ; Zhang et al, 2011 ; Zhao et al, 2016 ; Zhou et al, 2016 ; Justino et al, 2017 ) and have potential as green catalysts.…”

Section: Introductionmentioning

confidence: 99%

Fullerol Nanocatalysis and Trimodal Surface Plasmon Resonance for the Determination of Isocarbophos

2020

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Fullerol (C 60 OH) has been shown to catalyze the trisodium citrate (TSC)-silver nitrate reaction to generate Ag nanoparticles (AgNPs). These AgNPs exhibit significant nanoplasmic surface-enhanced Raman scattering (SERS), resonance Rayleigh scattering (RRS), and absorption (Abs). When an aptamer (Apt) adsorbs on the C 60 OH surface, catalysis is inhibited, and the intensities of SERS, RRS, and Abs decrease. In the presence of isocarbophos (IPS), Apt forms a stable complex (Apt-IPS) and releases C 60 OH. As a result, SERS, RRS, and Abs intensities increase with increasing IPS concentration. Accordingly, a new SERS, RRS, and Abs trimodal method using Apt-labeled fullerol was established for the determination of IPS. Of the three spectral methods, SERS was the most sensitive, while the Abs method was the most cost-effective.

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Section: Introductionmentioning

confidence: 99%

Fullerol Nanocatalysis and Trimodal Surface Plasmon Resonance for the Determination of Isocarbophos

2020

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Recent Trends and Future Perspectives of Emergent Analytical Techniques for Mercury Sensing in Aquatic Environments

Ali

Mansha

Baig

et al. 2022

The Chemical Record

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Environmental emissions of mercury from industrial waste and natural sources, even in trace amounts, are toxic to organisms and ecosystems. However, industrial‐scale mercury detection is limited by the high cost, low sensitivity/specificity, and poor selectivity of the available analytical tools. This review summarizes the key sensors for mercury detection in aqueous environments: colorimetric‐, electrochemical‐, fluorescence‐, and surface‐enhanced Raman spectroscopy‐based sensors reported between 2014–2021. It then compares the performances of these sensors in the determination of inorganic mercury (Hg2+) and methyl mercury (CH3Hg+) species in aqueous samples. Mercury sensors for aquatic applications still face serious challenges in terms of difficult deployment in remote areas and low robustness, reliability, and selectivity in harsh environments. We provide future perspectives on the selective detection of organomercury species, which are especially toxic and reactive in aquatic environments. This review is intended as a valuable resource for scientists in the field of mercury sensing.

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SERS-based mercury ion detections: principles, strategies and recent advances

Song

Yang

et al. 2015

Sci. China Chem.

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A SERS nanocatalytic reaction and its application to quantitative analysis of trace Hg(ii) with Vitoria blue B molecular probe

Abstract: A nanocatalytic SERS quantitative analytical method was developed for trace Hg(ii) detection with a label-free Vitoria blue B probe.

Cited by 13 publications

References 32 publications

Fullerol Nanocatalysis and Trimodal Surface Plasmon Resonance for the Determination of Isocarbophos

Fullerol Nanocatalysis and Trimodal Surface Plasmon Resonance for the Determination of Isocarbophos

Recent Trends and Future Perspectives of Emergent Analytical Techniques for Mercury Sensing in Aquatic Environments

SERS-based mercury ion detections: principles, strategies and recent advances

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