A colorimetric probe based on 4-mercaptophenol and thioglycolic acid-functionalized gold nanoparticles for determination of phytic acid and Fe(III) ions

Recent progress in 0D optical nanoprobes for applications in the sensing of (bio)analytes with the prospect of global health monitoring and detailed mechanistic insights

“…Recently, AuNPs-based chromo-fluorogenic nanosensors exhibited excellent biological applications towards the target-specific recognition of various bio-analytes, such as protein, DNA, lysozymes, dopamine, biothiols such as cysteine and glutathione, and bio-relevant ions such as Fe 3+ and Fe 2+ etc . 206–232 (Table 5)…”

“…237 Apak et al reported the preparation of a 4-mercaptophenol and thioglycolic acid (TGA)-functionalized gold nanoparticles-based chromogenic nanosensor for the selective simultaneous detection of PA and Fe 3+ . 211 Initially, the nanoprobe exhibited an SPR peak at 520 nm; however, in the presence of Fe 3+ , a strong peak appeared at 620 nm with a concomitant reduction in absorbance at 520 nm, leading to a chromogenic alteration from red to purple due to the aggregation of the NPs via coordinative interaction. Upon the addition of PA to the same solution, the chromogenic change was reversed due to the disaggregation of the NPs through the stronger binding affinity between Fe 3+ and PA. Herein, the presence of TGA was beneficial for the nano-assembly to independently detect two analytes proficiently.…”

Facile synthesis of a fluorescent probe based on a terbium-based metal–organic framework for selective detection of Fe(iii) and Al(iii)

“…Traditional detection approaches to quantitatively analyze Fe 3+ and Al 3+ , such as atomic absorption spectrometry, atomic emission spectroscopy, inductively coupled plasma mass spectrometry and spectrophotometry, have been well-developed. 16,17 However, complex instrument operation, tedious sample preparation, time-consuming detection, requirements for welltrained operators and high costs impede their large-scale applications. 18,19 Compared with these traditional approaches, the fluorescent probe-based analytical techniques have attracted widespread attention owing to the properties of portability, high detection sensitivity and high efficiency real-time visual responsivity in real samples.…”

Sulfur Centered Hydrogen Bonding in Thioglycolic Acid and Its Clusters: A Computational Exploration

“…It plays a vital role in the leather industry, where it is employed for depilation, fabric dyeing, and cosmetics, specifically in hair perming procedures. − Nonetheless, despite its extensive use in industrial settings, prolonged or acute exposure to TGA can lead to adverse health consequences. , Furthermore, TGA demonstrates remarkable versatility in the realm of materials science. It serves as a fundamental building block for polymer synthesis and finds wide-ranging utility in the detection of heavy metals and surface modification processes. − …”