Sensitive and selective colorimetric sensing of Fe³⁺ion by using p-amino salicylic acid dithiocarbamate functionalized gold nanoparticles

Abstract

DTC-PAS-Au NPs successfully acted as probes for the selective and sensitive colorimetric sensing of Fe3+ions in biological samples.

Synthesis of nitrogen-doped and amino acid-functionalized graphene quantum dots from glycine, and their application to the fluorometric determination of ferric ion

“…Though, iron has an essential role in living biosystems, high concentration of iron ions will threaten cells and tissues by readily participating in oxidation-reduction reactions and forming reactive oxidative intermediates [3,4]. Several fluorescent methods have been reported to detect Fe 3+ , such as graphene oxide -based probes [5], fluorescent polymer-based probes [6], and gold nanoparticle-based probes [7,8]. However, these organic fluorescent probes are mostly synthesized through several steps as well as the structures of the probes are complicated; limit their reliable application in the real sample assay.…”

Highly selective visual detection of Fe3+ at ppm level

“…The design and synthesis of highly selective chemosensors for metal ions, such as Cu 2+ , Fe 3+ , Zn 2+ ,Cd 2+ , Mn 2+ , Hg 2+ and Pb 2+ , have attracted a great deal of attention in the scientific community [1][2][3][4][5][6][7][8]. Among these important metal ions, the trivalent form of iron (Fe 3+ ) is the most essential trace elements in biological systems, and it plays an important role in many biochemical processes at the cellular level [9][10][11][12].…”

Optical sensor: a promising strategy for environmental and biomedical monitoring of ionic species

“…189) of various thicknesses (10-65 nm) deposited on thin gold films through spin coating and evaluated its applicability as a strong chelating agent toward ferric ion. 189 Schematic representation of the Fe-chitosan complex formation Mehta et al 291 developed a selective and sensitive colorimetric method for determination of Fe 3+ ion by using p-amino salicylic acid dithiocarbamate functionalized gold nanoparticles (DTC-PAS-Au NPs) 226 (Fig. The sensor exhibited the 9.49 × 105 M −1 affinity constant between chitosan and Fe 3+ and the minimum detection ability of the sensor was figure out to be lower than 250 ppb underlining the strong chelation properties of the chitosan film toward the ferric ion.…”

“…The cells of multicellular eukaryotes can respond to the metal status of the whole organism as well as to their own status. Several methods for the detection of transition metal ions in various samples have been proposed including atomic absorption spectrometry, [44][45][46] inductively coupled plasma mass spectroscopy (ICPMS), 47 inductively coupled plasma-atomic emission spectrometry (ICP-AES), 48,49 voltammetry, 50 CE (capillary electrophoresis), 51 FAAS (flame atomic absorption spectroscopy), 52 flow injection, 53,54 carbon dots, 55 graphene quantum dots, 56 fiber-optic redox method, 57 thin chitosan films, 58 functionalized metal nanoparticles, 59,60 and cyclodextrin supramolecular complex. 8,9 Therefore, the design and synthesis of fluorescent probes for sensing and monitoring of biologically and environmentally related transition metal ions is an attractive and fast growing field of research for chemistry, biology and environmental science due to their potential applications of high sensitivity and operational simplicity.…”