Functionalized Silver Nanoparticles as Colorimetric and Fluorimetric Sensor for Environmentally Toxic Mercury Ions: An Overview

Pomal, Nandan C.; Bhatt, Keyur D.; Modi, Krunal; Desai, Ajay A.; Patel, Nihal; Kongor, Anita; Kolivoška, Viliam

doi:10.1007/s10895-021-02699-z

Cited by 41 publications

(22 citation statements)

References 88 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…From this plot, a linear correlation is achieved between the range 15-120 µM with a correlation coe cient (R2) of 0.9926. The limit of detection (LOD) was found to be is 15 nM which is less than the maximum permitted level of Hg 2+ in drinking water by the World Health Organization (WHO) and Chinese National Standard [39][40][41]. Also, the intensity of uorescence completely quenched with incubation time of 9 min, therefore the synthesized NCs could be used as suitable probe for the detection of Hg 2+ ion in aqueous environment.…”

Section: Sensitivity Detection Of Hg 2+ Ions Using Auncsmentioning

confidence: 95%

Green Chemical Synthesis of N-Cholyl-L-Cysteine Encapsulated Gold Nanoclusters For Fluorometric Detection of Mercury Ions

Kasthuri¹,

Sivasamy

Rajendiran

2021

Preprint

View full text Add to dashboard Cite

Here we report a simple, single-step, cost-effective, environmentally friendly, and biocompatible approach using sodium salt of N-cholyl-L-cysteine (NaCysC) capped gold nanoclusters (AuNCs) with green emission properties at above the CMC in aqueous medium under UV-light irradiation. The primary and secondary CMC of NaCysC was found to be 4.6 and 10.7 mM respectively using pyrene as fluorescent probe. The synthesized AuNCs exhibit strong emission maxima at 520 nm upon excitation of 375 nm with a large Stokes shift of 145 nm. The surface functionality and morphology of NCs are studied by Fourier transform infrared spectroscopy, dymanic light scattering studies and transmission electron microscopy. The formation of AuNCs was completed within 5 h and exhibit high stability for more than 6 months. The NaCysC templated AuNCs selectively quenches the Hg2+ ions with higher sensitivity in aqueous solution over the other metal ions. The fluorescence analysis of Hg2+ showed a wide linear range from 15 to 120 µM and a detection limit was found to be 15 nM.

show abstract

Section: Sensitivity Detection Of Hg 2+ Ions Using Auncsmentioning

confidence: 95%

Green Chemical Synthesis of N-Cholyl-L-Cysteine Encapsulated Gold Nanoclusters For Fluorometric Detection of Mercury Ions

Kasthuri¹,

Sivasamy

Rajendiran

2021

Preprint

View full text Add to dashboard Cite

show abstract

“…Different materials such as metal organic frameworks (MOFs), covalent organic frameworks (COFs), C-materials, and nanoparticles (NPs) have been used to sense various small and hazardous molecules due to the nature of their fluorescence and their different functionalities by which they form many weak interactions with their hosts. [1][2][3] Among these, calixarenes are considered to be the most effective sensors for recognition of ions and small molecules due to their rim functionalities. [4,5] The functionalities of calixarenes can be modified as required.…”

Section: Introductionmentioning

confidence: 99%

A versatile enrichment of functionalized calixarene as a facile sensor for amino acids

et al. 2022

Self Cite

View full text Add to dashboard Cite

Amino acids are the most important part of the human biological system due to their role in living processes. The role of amino acids stretches beyond their traditional role as a building block for proteins, and deficiency of amino acids could lead to decreased immunity, digestive problems, depression, fertility issues, lower mental alertness, slowed growth in children, and many other health issues. The acute detection of amino acids is necessary to determine the human health domain. Here, in this review, we summarize and study the calixarenes as complexes that are of immeasurable value and their utilization for amino acid detection. Key factors such as noncovalent forces, limit of detection, and the supramolecular chemistry of calixarenes with amino acids have been well described. This study presents the most recent efforts made towards the development of potential and highly efficient calixarene-based sensors for the detection of amino acids.

show abstract

“…Recently, many methods are performed for the synthesis of metal nanoparticles using the plant extract [4,5].These methods have developed impressively due to its properties including; cost effective, easiness and eco-friendly [6]. Specific physicochemical properties are related to nanomaterials, these properties cause them to be chiefly attractive for many application [7][8][9][10][11][12]. Wastewater purification Metal nanoparticles were used in eliminating pollution from the environment [13], one of these pollutants are heavy metals [14].…”

Section: Introductionmentioning

confidence: 99%

“…Fig (10). The removal percentage of Mn(II) ions in (walnut husks -Mn(II) ions) adsorption system without silver nanoparticles and after addition of silver nanoparticles.…”

mentioning

confidence: 99%

A New Comparison Between Ag-Nano Adsorbent and Walnut Shell Adsorbent

2021

View full text Add to dashboard Cite

Silver nanoparticles were synthesised and used as a nano-adsorbent. Silver nanoparticles were added to adsorption system contain a (walnut husks -Manganese ions). The concept of this addition is to enhance the adsorption system due to high surface area to volume ratio of silver nanoparticles. Characterization of walnut husks was done by Fourier transformation infrared (FTIR). Characterization of silver nanoparticles was done also using many techniques, dynamic light scattering (DLS) and field emission scanning electron microscopy (FE-SEM) were used for determination of size and the potential of silver nanoparticles and also to identify the size and the shape of silver nanoparticles. The image showed an average particle diameter in the range (10-85 nm). Energy dispersive X-ray spectra (EDS) was used to examine the quantity of prepared silver nanoparticles. The optimum parameters were studied for this adsorption system such as contact time, weight of adsorpant, effect of pH, manganese concentration and the effect of addition of silver nanoparticles on the (walnut husks -Mn (II) ions) adsorption system. All the experiment parameters were fixed then silver nanoparticles were added to the system contain (walnut husks -Mn (II) ions). The results showed enhancement in the percentage of releasing by 2.2%. The data of the experiment has been investigated through Langmuir, Ferndelsch and Temkin. By evaluating the results, it can be concluded that the adsorption isotherm is most distinct through Freundlich.

show abstract

Functionalized Silver Nanoparticles as Colorimetric and Fluorimetric Sensor for Environmentally Toxic Mercury Ions: An Overview

Cited by 41 publications

References 88 publications

Green Chemical Synthesis of N-Cholyl-L-Cysteine Encapsulated Gold Nanoclusters For Fluorometric Detection of Mercury Ions

Green Chemical Synthesis of N-Cholyl-L-Cysteine Encapsulated Gold Nanoclusters For Fluorometric Detection of Mercury Ions

A versatile enrichment of functionalized calixarene as a facile sensor for amino acids

A New Comparison Between Ag-Nano Adsorbent and Walnut Shell Adsorbent

Contact Info

Product

Resources

About