Colorimetric detection of iron ions (III) based on the highly sensitive plasmonic response of the N-acetyl-l-cysteine-stabilized silver nanoparticles

A new method has been proposed to realize the visual detection of Cr 3+ using 4-nitrobenzenethiol (4-NBT) and 4-mercaptobenzoic acid (4-MBA) modified silver nanoparticles ( AgNPs ). The presence of Cr 3+ induces the aggregation of AgNPs through cooperative metal–ligand interaction, resulting in a color change from bright yellow to purple. Consequently, Cr 3+ could be monitored by colorimetric response of AgNPs by a UV-Vis spectrophotometer or even naked eyes. We firstly used ethylene diamine tetraacetic acid (EDTA) as a masking agent to selectively detect Cr 3+, and other metal ions have little influence on the Cr 3+– AgNPs system. The cofunctionalized AgNPs exhibited a highly sensitive detection limit of Cr 3+, which is as low as 5 × 10-9 mol L-1, and the absorbance ratio (A600nm/A387nm) is linear with the concentration of Cr 3+ ranging from 5 × 10-9 mol L-1 to 2 × 10-6 mol L-1 with a coefficient of 0.993. Particularly, the sensor has been further evaluated to monitor the concentration of Cr 3+ in drinking water, the recovery was in good agreement with those obtained by ICP-MS, indicating that this proposed method is successfully applied in real samples.

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Highly sensitive and selective colorimetric detection of arginine by polyvinylpyrrolidone functionalized silver nanoparticles

Journal of Molecular Liquids ◽

10.1016/j.molliq.2019.112361 ◽

2020 ◽

Vol 300 ◽

pp. 112361 ◽

Cited By ~ 6

Author(s):

S. Balasurya ◽

Asad Syed ◽

Ajith Mesmin Thomas ◽

Ali H. Bahkali ◽

Abdallah M. Elgorban ◽

...

Keyword(s):

Silver Nanoparticles ◽

Colorimetric Detection ◽

Highly Sensitive

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Colorimetric Detection of Hg(II) Ion Using Silver Nanoparticles Capped with 3-Hydroxybenzoic Acid

Molekul ◽

10.20884/1.jm.2019.14.1.460 ◽

2019 ◽

Vol 14 (1) ◽

pp. 18

Author(s):

Gusrizal Gusrizal ◽

Andi Hairil Alimuddin ◽

Ajuk Sapar ◽

Rizki Noviani Ridwan ◽

Sri Juari Santosa

Keyword(s):

Silver Nanoparticles ◽

Surface Plasmon Resonance ◽

Surface Plasmon ◽

Plasmon Resonance ◽

Colorimetric Detection ◽

Hydroxybenzoic Acid ◽

Surface Plasmon Resonance Peak ◽

Plasmon Resonance Peak ◽

Highly Sensitive ◽

First Time

In this paper, we report for the first time thesimple method for detection of Hg(II) ion in anaqueousmedium using silver nanoparticles capped with 3-hydroxybenzoic acid. Silver nanoparticles capped with 3-hydroxybenzoic acid were preparedby reduction of the silver ion with 3-hydroxybenzoic acid and without surface functionalization. The formation of silver nanoparticles was characterized by a UV-Visible spectrophotometer. The yellowcolloid of prepared silver nanoparticles capped with 3-hydroxybenzoic acid showed a surface plasmon resonance peak at 420 nm. The ability of silver nanoparticles capped with 3-hydroxybenzoic acid in detection was tested by doing a reaction with several metal ions individually(Na(I), K(I), Cu(II), Zn(II), Ca(II), Mg(II), Hg(II), Mn(II), Ni(II), Pb(II), and Co(II)). It was foundthat silver nanoparticles capped with 3-hydroxybenzoic acid highly selective toHg(II) and then the prepared silver nanoparticles were developedfor detection of Hg(II) ion. Addition of 1 mL Hg(II) ion into 4mL the as-preparedsilver nanoparticles reducedthe peak of surface plasmon resonance spectra, andthe reduction of peak intensity was proportional to the concentration of Hg(II) ion. A goodlinear relationship (R2= 0.998) between absorbance at 420 nm and concentrationof Hg(II) over the range 1.0x10-3to 5.5x10-3M was obtained. Silver nanoparticles capped with 3-hydroxybenzoic acid were highly sensitive to Hg (II) ion with the detection limit down to 4.7x10-5M. Application the method to the real water sample showed the excellentresult with recovery ranged from 98 to 101%. The proposed method was found to be useful forthe colorimetric detection of Hg(II) ion in an aqueousmedium.

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Highly sensitive colorimetric detection of NH3 based on Au@Ag@AgCl core-shell nanoparticles

Chinese Chemical Letters ◽

10.1016/j.cclet.2021.02.029 ◽

2021 ◽

Author(s):

Zhiwei Qiu ◽

Yitong Xue ◽

Jiyong Li ◽

Yunzhi Zhang ◽

Xinyi Liang ◽

...

Keyword(s):

Colorimetric Detection ◽

Core Shell ◽

Shell Nanoparticles ◽

Highly Sensitive ◽

Core Shell Nanoparticles

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Immobilization of Pseudomonas aeruginosa static biomass on eggshell powder for on-line preconcentration and determination of Cr (VI)

Open Chemistry ◽

10.1515/chem-2020-0031 ◽

2020 ◽

Vol 18 (1) ◽

pp. 303-313 ◽

Cited By ~ 1

Author(s):

Aamir Rasheed ◽

Tahseen Ghous ◽

Sumaira Mumtaz ◽

Muhammad Nadeem Zafar ◽

Kalsoom Akhter ◽

...

Keyword(s):

Pseudomonas Aeruginosa ◽

Low Cost ◽

Colorimetric Detection ◽

Time Flow ◽

Highly Sensitive ◽

Glass Column ◽

On Line ◽

Preconcentration Time ◽

Ultra Trace

AbstractIn the present work, a novel continuous flow system (CFS) is developed for the preconcentration and determination of Cr (VI) using Pseudomonas aeruginosa static biomass immobilized onto an effective and low-cost solid support of powdered eggshells. A mini glass column packed with the immobilized biosorbent is incorporated in a CFS for the preconcentration and determination of Cr (VI) from aqueous solutions. The method is based on preconcentration, washing and elution steps followed by colorimetric detection with 1,5-diphenyl carbazide in sulphuric acid. The effects of several variables such as pH, retention time, flow rate, eluent concentration and loaded volume are studied. Under optimal conditions, the CFS method has a linear range between 10 and 100 μg L-1 and a detection limit of 6.25 μg L-1 for the determination of Cr (VI). The sampling frequency is 10 samples per hour with a preconcentration time of 5 mins. Furthermore, after washing with a 0.1 M buffer (pH 3.0), the activity of the biosorbent is regenerated and remained comparable for more than 200 cycles. Scanning electron microscopy reveals a successful immobilization of biomass on eggshells powder and precipitation of Cr (VI) on the bacterial cell surface. The proposed method proves highly sensitive and could be suitable for the determination of Cr (VI) at an ultra-trace level.

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Highly Sensitive and Reproducible SERS Substrates Based on Ordered Micropyramid Array and Silver Nanoparticles

ACS Applied Materials & Interfaces ◽

10.1021/acsami.1c08712 ◽

2021 ◽

Author(s):

Chengpeng Zhang ◽

Shuai Chen ◽

Zhaoliang Jiang ◽

Zhenyu Shi ◽

Jilai Wang ◽

...

Keyword(s):

Silver Nanoparticles ◽

Sers Substrates ◽

Highly Sensitive

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A hybrid dewetting approach to generate highly sensitive plasmonic silver nanoparticles with a narrow size distribution

Applied Surface Science ◽

10.1016/j.apsusc.2020.148613 ◽

2021 ◽

Vol 542 ◽

pp. 148613

Author(s):

Harim Oh ◽

Alexander Pyatenko ◽

Myeongkyu Lee

Keyword(s):

Silver Nanoparticles ◽

Size Distribution ◽

Narrow Size Distribution ◽

Highly Sensitive

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An anthracene–quinoline based dual-mode fluorometric–colorimetric sensor for the detection of Fe3+ and its application in live cell imaging

New Journal of Chemistry ◽

10.1039/d1nj00178g ◽

2021 ◽

Author(s):

Tahereh Tehrani ◽

Soraia Meghdadi ◽

Zohreh Salarvand ◽

Behnam Tavakoli ◽

Kiamars Eskandari ◽

...

Keyword(s):

Live Cell Imaging ◽

Cell Imaging ◽

Colorimetric Detection ◽

Colorimetric Sensor ◽

Live Cell ◽

Dual Mode ◽

Highly Sensitive

A highly sensitive anthracene–quinoline based dual-mode sensor has been synthesized and used for the fluorometric and colorimetric detection of Fe3+ and in live cell imaging.

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Highly sensitive and selective colorimetric detection of dual metal ions (Hg2+ and Sn2+) in water: an eco-friendly approach

RSC Advances ◽

10.1039/d0ra09926k ◽

2021 ◽

Vol 11 (24) ◽

pp. 14700-14709

Author(s):

Rintumoni Paw ◽

Moushumi Hazarika ◽

Purna K. Boruah ◽

Amlan Jyoti Kalita ◽

Ankur K. Guha ◽

...

Keyword(s):

Metal Ions ◽

Ag Nanoparticles ◽

Limit Of Detection ◽

Colorimetric Detection ◽

Garlic Extract ◽

Selective Detection ◽

Highly Sensitive ◽

Dual Metal

Synthesis of Ag nanoparticles using Allin based garlic extract for highly sensitive and selective detection of metal ions Hg2+ and Sn2+ in water. The limit of detection (LoD) for Hg2+ and Sn2+ ions were found as 15.7 nM and 11.25 nM respectively.

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