Colorimetric detection of Hg2+ using gold nanoparticles synthesized by Trichosporon montevideense WIN

Wang, Rouyi; Zhang, Henglin; Zhang, Xiuhong; Li, Zheng; Yang, Ying; Zheng, Ru; Qu, Yuanyuan

doi:10.1007/s10529-020-02885-2

Cited by 4 publications

(2 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition, changes in pH can change the electrostatic interaction between gold nanoparticles and Hg 2+ . The hydroxyl groups in solution can interact with metal ions or molecules that coat the surface of AuNPs, thereby reducing the coordination effect between metal ions and proteins [ 17 ]. This is in accordance with previous studies showing that the diimide group is easily deprotonated under alkaline conditions, thereby affecting the formation of the CA-Hg 2+ -CA structure, the stability of gold nanoparticles, and the results of the colorimetric response [ 9 ].…”

Section: Resultsmentioning

confidence: 99%

Development of a Colorimetric Paper Sensor for Hg2+ Detection in Water Using Cyanuric Acid-Conjugated Gold Nanoparticles

Saputri,

Zubaidah,

Kenanga

et al. 2023

Molecules

View full text Add to dashboard Cite

Hg2+ is one of the most dangerous pollutants that can cause damage to organs and the immune system. The common detection methods of Hg2+ require sophisticated instrumentation and a long time for analysis. The purpose of this study was to develop a sensor for the detection of Hg2+ using filter paper immobilized by gold nanoparticles (AuNPs) conjugated with cyanuric acid (CA). The clear color change from pink to bluish purple is the response of the CA-AuNPs filter paper sensor to exposure to Hg2+. Detection can be observed visually with the naked eye and/or with imageJ software; the detection limit is 0.05 µM. The colorimetric response of the sensor was also selective towards Hg2+ after testing with different metal ions. In addition, the response from the sensor was also consistent for lake water samples spiked with Hg2+. The results of this research provide a promising basic technology for the development of sensors that are affordable, fast, portable, and easy to use for the detection and monitoring of Hg2+ levels in water.

show abstract

Section: Resultsmentioning

confidence: 99%

Development of a Colorimetric Paper Sensor for Hg2+ Detection in Water Using Cyanuric Acid-Conjugated Gold Nanoparticles

Saputri,

Zubaidah,

Kenanga

et al. 2023

Molecules

View full text Add to dashboard Cite

show abstract

“…[4] In addition, Hg 2 + combines with metals such as Ag and Au to form amalgams, which can also be used to construct the colorimetric probes for Hg 2 + . [17][18][19] For instance, the amalgam reaction between Hg 2 + and AgNPs that are stabilized by graphene oxide results in a color change from yellow to colorless. [17] Although a series of colorimetric probes for Hg 2 + have been reported, [20][21][22][23][24][25][26][27][28] efforts still need to be made to improve their detection performances.…”

Section: Introductionmentioning

confidence: 99%

A Simple Colorimetric Probe for Sensitive Detection of Hg²⁺ Based on MnO₂ Nanosheets and Monothioglycerol

Ding

Zhao

et al. 2020

ChemistrySelect

View full text Add to dashboard Cite

It is of great significance to develop efficient platforms for the detection of hypertoxic Hg 2 +. Colorimetric probes have received much attention for the detection of Hg 2 + in the last decades. In this work, a colorimetric probe composed of MnO 2 nanosheets and monothioglycerol (MTG) was rationally designed for Hg 2 + detection, which was facially prepared via onestep reaction at room temperature. The formation of HgÀ S bond between Hg 2 + and MTG inhibited the decomposition ability of MTG toward MnO 2 nanosheets, thus resulting in a color change from colorless to brown. On this basis, the probe quantified Hg 2 + in the concentration range from 2 to 60 μM with a low detection limit of 0.75 μM. The probe was applied to the detection of Hg 2 + in tap water successfully, and was further fabricated into test strips for the convenience of use. Thereby, a simple and sensitive colorimetric probe for Hg 2 + is developed in this work, which holds future promise for monitoring Hg 2 + in the environment.

show abstract

Diversity of fungus-mediated synthesis of gold nanoparticles: properties, mechanisms, challenges, and solving methods

Feng-qin

Zhao

et al. 2023

Critical Reviews in Biotechnology

View full text Add to dashboard Cite

Colorimetric detection of Hg2+ using gold nanoparticles synthesized by Trichosporon montevideense WIN

Cited by 4 publications

References 14 publications

Development of a Colorimetric Paper Sensor for Hg2+ Detection in Water Using Cyanuric Acid-Conjugated Gold Nanoparticles

Development of a Colorimetric Paper Sensor for Hg2+ Detection in Water Using Cyanuric Acid-Conjugated Gold Nanoparticles

A Simple Colorimetric Probe for Sensitive Detection of Hg²⁺ Based on MnO₂ Nanosheets and Monothioglycerol

Diversity of fungus-mediated synthesis of gold nanoparticles: properties, mechanisms, challenges, and solving methods

Contact Info

Product

Resources

About

Colorimetric detection of Hg2+ using gold nanoparticles synthesized by Trichosporon montevideense WIN

Cited by 4 publications

References 14 publications

Development of a Colorimetric Paper Sensor for Hg2+ Detection in Water Using Cyanuric Acid-Conjugated Gold Nanoparticles

Development of a Colorimetric Paper Sensor for Hg2+ Detection in Water Using Cyanuric Acid-Conjugated Gold Nanoparticles

A Simple Colorimetric Probe for Sensitive Detection of Hg2+ Based on MnO2 Nanosheets and Monothioglycerol

Diversity of fungus-mediated synthesis of gold nanoparticles: properties, mechanisms, challenges, and solving methods

Contact Info

Product

Resources

About

A Simple Colorimetric Probe for Sensitive Detection of Hg²⁺ Based on MnO₂ Nanosheets and Monothioglycerol