A simply visual and rapidly colorimetric detection of Hg2+ in cosmetics based on gold nanoparticles modified by sulfadiazine

Li, Xiaoying; Zhao, Zilin; Hao, Tingting; Li, Xing

doi:10.1016/j.optmat.2023.113622

Cited by 5 publications

(1 citation statement)

References 33 publications

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“…Hence, considerable attention has been paid to develop optical fluorescent sensors or colorimetric chemosensors. Although a variety of chemosensors for Hg and Cd ions were developed based on small molecules [ 30 , 31 ], bio-molecules [ 32 , 33 ], polymers [ 34 , 35 ], and nanoparticles [ 36 ], most of them rely on fluorescence enhancement (turn-on) or quenching (turn-off) approaches; and it is highly desirable to design novel colorimetric sensors for simple, low-cost, and naked-eye detection of these ions without resort to any spectroscopic equipment. Therefore, the design and synthesis of colorimetric chemosensors for simultaneous detection of Hg and Cd ions are of interest [ [37] , [38] , [39] , [40] ].…”

Section: Introductionmentioning

confidence: 99%

Simultaneous detection of mercury and cadmium ions: A colorimetric method in aqueous media

Pourbadiei,

Eftekhari-Sis,

Kordzadeh

et al. 2023

Heliyon

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Section: Introductionmentioning

confidence: 99%

Simultaneous detection of mercury and cadmium ions: A colorimetric method in aqueous media

Pourbadiei,

Eftekhari-Sis,

Kordzadeh

et al. 2023

Heliyon

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Rapid Colorimetric Detection of Ca(II) Based on Surface Plasmon Resonance Absorbances of 5‐PBA@AuNPs Sensor

Ma,

Li,

Duan

et al. 2024

ChemNanoMat

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Calcium ions (Ca2+) are essential for a myriad of physiological functions, including excitability, neurotransmitter release, gene transcription, cell proliferation, synaptic plasticity, and hormone secretion. Consequently, the detection of Ca2+ concentrations in water is of fundamental and practical significance. In this study, a novel method for the simple, visual, and rapid colorimetric detection of Ca2+ is introduced, leveraging the surface plasmon resonance (SPR) absorbances of gold nanoparticles (AuNPs) modified with 5‐Pyrimidinylboronic acid (5‐PBA). A color change from wine‐red to gray‐blue was observed with increasing concentrations of Ca2+, indicative of the agglomeration of AuNPs. This agglomeration displayed favorable anti‐interference properties and selectivity. The limits of detection (LOD) were determined to be 0.08 mM by the unaided eye and 3.29 μM by UV‐visible spectroscopy. Moreover, an excellent linear relationship (R2 = 0.9879) was maintained within the Ca2+ concentration range of 0.0 to 0.5 mM. These results suggest that AuNPs modified with 5‐PBA are suitable for the quantitative determination of Ca2+. Subsequent testing on actual samples confirmed that this new method could be effectively applied to the monitoring of Ca2+ in water.

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Chromoionophoric Molecular Probe Infused Bimodal Porous Polymer Rostrum as Solid-State Ocular Sensor for the Selective and Expeditious Optical Sensing of Ultra-Trace Toxic Mercury Ions

Srinivasan,

Sivaraman,

Mohan

et al. 2024

Journal of Hazardous Materials

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A simply visual and rapidly colorimetric detection of Hg2+ in cosmetics based on gold nanoparticles modified by sulfadiazine

Cited by 5 publications

References 33 publications

Simultaneous detection of mercury and cadmium ions: A colorimetric method in aqueous media

Simultaneous detection of mercury and cadmium ions: A colorimetric method in aqueous media

Rapid Colorimetric Detection of Ca(II) Based on Surface Plasmon Resonance Absorbances of 5‐PBA@AuNPs Sensor

Chromoionophoric Molecular Probe Infused Bimodal Porous Polymer Rostrum as Solid-State Ocular Sensor for the Selective and Expeditious Optical Sensing of Ultra-Trace Toxic Mercury Ions

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