Applied Chemical Engineering

Glutathione as a novel engineered biomaterial for heavy metal ion quantification and remediation

Rajib Biswas

Applied Optics and Photonics Lab, Department of Physics, Tezpur University

DOI: https://doi.org/10.59429/ace.v7i2.1873

Keywords: glutathione; absorption; sensing; heavy metal ion; limit of detection

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Abstract

The prevalence of heavy metal ion (HMI) contamination is increasing worldwide—hence posing a growing threat to both ecological and human well-being. In recent years, there has been significant research endeavors focused on the quantitative analysis of these heavy metal ions (HMI). There is an increasing demand for cost-effective, sensitive, selective, and speedy methods for detecting them. In the context of functional materials for detection as well as effective diminution of HMI, Glutathione is recognized as well as widely proven for its robust capacity to form complexes with harmful heavy metal ions, with its solubility in water, enduring action, and convenient accessibility. Consequently, glutathione is increasingly being utilized as a preferred molecular probe in the development of highly sensitive, cost-effective, and easily accessible sensors for the detection of these. Keeping in cue of the increasing use of Glutathione, this mini review provides a summary of the findings from different glutathione-based HMI detection approaches as documented in recent literature. These approaches are classified according to their respective techniques of signal transduction. The discussion and comparison of their operation and execution, as well as the evaluation of figures of merit such as limit of detection, selectivity, and response time, are presented. Likewise, removal mechanisms along with challenges are also briefed in this mini review.

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