Colorimetric detection of mercury ions from environmental water sample by using 3-(Trimethoxysilyl)propyl methacrylate functionalized Ag NPs-tryptophan nanoconjugate

Balasurya, S.; Syed, Asad; Thomas, Ajith M.; Marraiki, Najat; Al-Rashed, Sarah; Elgorban, Abdallah M.; Raju, Lija L.; Das, Arunava; Khan, S. Sudheer

doi:10.1016/j.jphotobiol.2020.111888

Cited by 23 publications

(3 citation statements)

References 37 publications

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“…1 Nanoparticles offer many advantages over bulk materials due to their high surface area to volume ratio. 2 Silver nanoparticles (AgNPs) are particularly interesting due to their various unique properties (optical, mechanical, thermal, and biological) compared to other metal nanoparticles. 3 Consequently, AgNPs have been used in many kinds of research such as catalysis, 4 sensing, 5 nano-electronics, 6 and biomedical applications.…”

Section: Introductionmentioning

confidence: 99%

“…In recent years, nanotechnology has seen more attention due to its extensive applications in various fields including medicine, pharmacology, catalysis, energy, and materials 1 . Nanoparticles offer many advantages over bulk materials due to their high surface area to volume ratio 2 . Silver nanoparticles (AgNPs) are particularly interesting due to their various unique properties (optical, mechanical, thermal, and biological) compared to other metal nanoparticles 3 .…”

Section: Introductionmentioning

confidence: 99%

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Preparation of nano‐silver coated poly(vinyl alcohol) via a heterogeneous coating system for various antimicrobial products

Nootsuwan

Sukthavorn

Khankhuean

et al. 2023

Polymer Engineering & Sci

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Silver‐coated polyvinyl alcohol (Ag/PVA) was prepared using 3,4‐dihydro‐3,6‐dimethyl‐1,3‐2H‐benzoxazine as a reducing agent reported in the petty patent of our research group. Ag/PVA22000 is applicable for making solutions and gels. Solutions of Ag/PVA22000 have exhibited antimicrobial properties against Staphylococcus aureus, Bacillus subtilis, Escherichia coli, Pseudomonas aeruginosa, and Candida albicans, while the gels inhibited only S. aureus, B. subtilis, E. coli, and P. aeruginosa. Therefore, the solutions and gels tend to be used in antimicrobial sprays and gel bandages. Moreover, Ag/PVA145000 was able to form hydrogels by gamma‐ray irradiation. Therefore, the hydrogels with the lowest amount of silver were prepared from 5.0 wt.% of Ag/PVA145000 at the 20 kGy of gamma‐ray irradiation. The results illustrated that the hydrogels exhibited antimicrobial properties against S. aureus, B. subtilis, E. coli, and P. aeruginosa. However, no inhibition of C. albicans was observed for any prepared hydrogels.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Preparation of nano‐silver coated poly(vinyl alcohol) via a heterogeneous coating system for various antimicrobial products

Nootsuwan

Sukthavorn

Khankhuean

et al. 2023

Polymer Engineering & Sci

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show abstract

“…During the past few years, many methods using different instruments have been reported for mercury and lead ion detection, including inductively coupled plasma mass spectrometry (ICP-MS) [5,6], cold-vapor atomic fluorescence spectroscopy (CV-AFS) [7], high-performance liquid chromatography (HPLC) [8], colorimetric sensors [9], magnetic beads [10], nanopore sensors [11,12], surface-enhanced Raman scattering (SERS) [13], electrochemical sensors [14,15] and aptasensors [16,17]. Although these methods provide reliable detection for mercury and lead ions, the mentioned methods suffer from some limitations.…”

Section: Introductionmentioning

confidence: 99%

A Microfluidic Aptamer-Based Sensor for Detection of Mercury(II) and Lead(II) Ions in Water

Huang

Mai

et al. 2021

Micromachines

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Heavy metal contaminants have serious consequences for the environment and human health. Consequently, effective methods for detecting their presence, particularly in water and food, are urgently required. Accordingly, the present study proposes a sensor capable of detecting mercury Hg(II) and lead Pb(II) ions simultaneously, using graphene oxide (GO) as a quenching agent and an aptamer solution as a reagent. In the proposed device, the aptamer sequences are labeled by FAM and HEX fluorescent dyes, respectively, and are mixed well with 500 ppm GO solution before injection into one inlet of the microchannel, and the heavy metal sample solution is injected into another inlet. The presence of Hg(II) and Pb(II) ions is then detected by measuring the change in the fluorescence intensity of the GO/aptamer suspension as the aptamer molecules undergo fluorescence resonance energy transfer (FRET). The selectivity of these two ions is also shown to be clear among other mixed heavy metal ions. The experimental results show that the aptamer sensors have a linear range of 10~250 nM (i.e., 2.0~50 ppb) for Hg(II) ions and 10~100 nM (i.e., 2.1~20.7 ppb) for Pb(II) ions. Furthermore, the limit of detection is around 0.70 ppb and 0.53 ppb for Hg(II) and Pb(II), respectively, which is lower than the maximum limits of 6 ppb and 10 ppb prescribed by the World Health Organization (WHO) for Hg(II) and Pb(II) in drinking water, respectively.

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A colorimetric sensor for the stable and selective detection of mercury ions using PAH-capped silver nanoparticles in an aqueous medium

Samuel,

Rao

2023

Appl Nanosci

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Colorimetric detection of mercury ions from environmental water sample by using 3-(Trimethoxysilyl)propyl methacrylate functionalized Ag NPs-tryptophan nanoconjugate

Cited by 23 publications

References 37 publications

Preparation of nano‐silver coated poly(vinyl alcohol) via a heterogeneous coating system for various antimicrobial products

Preparation of nano‐silver coated poly(vinyl alcohol) via a heterogeneous coating system for various antimicrobial products

A Microfluidic Aptamer-Based Sensor for Detection of Mercury(II) and Lead(II) Ions in Water

A colorimetric sensor for the stable and selective detection of mercury ions using PAH-capped silver nanoparticles in an aqueous medium

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