AgNPs Functionalized with Dithizone for the Detection of Hg2+ Based on Surface-enhanced Raman Scattering Spectroscopy

Guo, Na; Zhang, Qijia; Song, Peng; Xia, Lixin

doi:10.1007/s11468-022-01626-7

Cited by 3 publications

(2 citation statements)

References 42 publications

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“…Compared to conventional spectroscopic detection of Hg 2+ ions, the colorimetric method is a simple method due to their simplicity (naked eye detection), low cost, and fast detection . The detection of Hg 2+ ions using different nanomaterials with size-, shape-, and interparticle distance-dependent optical properties and high extinction coefficients have been reported. − Hence, the preparation of metal NPs with different morphologies by a facile method for selective sensing of Hg 2+ ions is necessity.…”

Section: Introductionmentioning

confidence: 99%

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Amine-Functionalized Silane-Assisted Preparation of AgNP-Deposited α-Ni(OH)₂ Composite Materials and Their Application in Hg²⁺ Ion Sensing

et al. 2022

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A facile synthetic methodology for the deposition of different concentrations of Ag nanoparticles (AgNPs) on α-Ni(OH) 2 sheets (α-Ni 1 (OH) 2 -Ag 0.5 , α-Ni 1 (OH) 2 -Ag 1 , α-Ni 1 (OH) 2 -Ag 2 , and α-Ni 1 (OH) 2 -Ag 3 ) is reported using N- [3-(trimethoxysilyl)propyl]diethylenetriamine (TPDT) silane. The TPDT aminosilane facilitates the formation of α-Ni(OH) 2 sheets and reduces the Ag + precursor to AgNPs, leading to the deposition of AgNPs on α-Ni(OH) 2 sheets. UV− vis absorption spectroscopy, transmission microscopy analyses, X-ray photoelectron spectroscopy, X-ray diffraction, and attenuated total reflectance−Fourier transform infrared spectroscopy techniques were used to characterize the prepared α-Ni 1 (OH) 2 -Ag 0.5−3 composite materials. High-angle annular dark-field scanning transmission electron microscopy−energy-dispersive X-ray spectroscopy mapping images and scanning electron microscopy−energy-dispersive X-ray spectroscopy mapping images were recorded to understand the α-Ni 1 (OH) 2 -Ag composite sheet materials. The optical sensing property of α-Ni 1 (OH) 2 -Ag 0.5−3 composite materials toward toxic Hg 2+ ions were investigated using a UV−vis absorption spectroscopy technique. The α-Ni 1 (OH) 2 -Ag 2 composite material showed selective sensing behavior.

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Section: Introductionmentioning

confidence: 99%

“… 21 The detection of Hg 2+ ions using different nanomaterials with size-, shape-, and interparticle distance-dependent optical properties and high extinction coefficients have been reported. 23 − 27 Hence, the preparation of metal NPs with different morphologies by a facile method for selective sensing of Hg 2+ ions is necessity.…”

Section: Introductionmentioning

confidence: 99%

Amine-Functionalized Silane-Assisted Preparation of AgNP-Deposited α-Ni(OH)₂ Composite Materials and Their Application in Hg²⁺ Ion Sensing

et al. 2022

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Nanomaterials for surface-enhanced Raman spectroscopy-based metal detection: a review

Yang,

Youden,

Carrier

et al. 2024

Environ Chem Lett

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Development of a Novel H-Shaped Electrochemical Aptasensor for Detection of Hg2+ Based on Graphene Aerogels–Au Nanoparticles Composite

Peng,

Guo,

Liu

et al. 2023

Biosensors

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Hg2+, a highly toxic heavy metal, poses significant environmental and health risks, necessitating rapid detection methods. In this study, we employed an electrochemical aptasensor for rapid and sensitive detection of Hg2+ based on DNA strands (H2 and H3) immobilized graphene aerogels-Au nanoparticles (GAs-AuNPs) hybrid recognition interface and exonuclease III (Exo III)-mediated cyclic amplification. Firstly, Gas-AuNPs were modified on the surface of the ITO electrode to form a sensing interface to increase DNA loading and accelerate electron transfer. Then, DNA helper was generated with the addition of Hg2+ via Exo III-mediated cycling. Finally, the hairpin structures of H2 and H3 were opened with the DNA helper, and then the methylene blue (MB) functionalized DNA (A1 and A2) combined with the H2 and H3 to form an H-shaped structure. The current response of MB as an electrochemical probe was proportional to the concentration of Hg2+. Under optimal conditions, the aptasensor showed excellent performance for Hg2+, achieving a linear range from 1 fM to 10 nM and a detection limit of 0.16 fM. Furthermore, the aptasensor was used to detect Hg2+ in spiked milk samples, achieving a high recovery rate and demonstrating promising application prospects.

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AgNPs Functionalized with Dithizone for the Detection of Hg2+ Based on Surface-enhanced Raman Scattering Spectroscopy

Cited by 3 publications

References 42 publications

Amine-Functionalized Silane-Assisted Preparation of AgNP-Deposited α-Ni(OH)₂ Composite Materials and Their Application in Hg²⁺ Ion Sensing

Amine-Functionalized Silane-Assisted Preparation of AgNP-Deposited α-Ni(OH)₂ Composite Materials and Their Application in Hg²⁺ Ion Sensing

Nanomaterials for surface-enhanced Raman spectroscopy-based metal detection: a review

Development of a Novel H-Shaped Electrochemical Aptasensor for Detection of Hg2+ Based on Graphene Aerogels–Au Nanoparticles Composite

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AgNPs Functionalized with Dithizone for the Detection of Hg2+ Based on Surface-enhanced Raman Scattering Spectroscopy

Cited by 3 publications

References 42 publications

Amine-Functionalized Silane-Assisted Preparation of AgNP-Deposited α-Ni(OH)2 Composite Materials and Their Application in Hg2+ Ion Sensing

Amine-Functionalized Silane-Assisted Preparation of AgNP-Deposited α-Ni(OH)2 Composite Materials and Their Application in Hg2+ Ion Sensing

Nanomaterials for surface-enhanced Raman spectroscopy-based metal detection: a review

Development of a Novel H-Shaped Electrochemical Aptasensor for Detection of Hg2+ Based on Graphene Aerogels–Au Nanoparticles Composite

Contact Info

Product

Resources

About

Amine-Functionalized Silane-Assisted Preparation of AgNP-Deposited α-Ni(OH)₂ Composite Materials and Their Application in Hg²⁺ Ion Sensing

Amine-Functionalized Silane-Assisted Preparation of AgNP-Deposited α-Ni(OH)₂ Composite Materials and Their Application in Hg²⁺ Ion Sensing