A highly sensitive, dual-signal assay based on rhodamine B covered silver nanoparticles for carbamate pesticides

Luo, Qingjiao; Li, Yongxin; Zhang, Meng-Qian; Qiu, Ping; Deng, Yonghui

doi:10.1016/j.cclet.2016.10.024

Cited by 39 publications

(21 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A sensor for determination of carbamate pesticides based on rhodamine B modified silver nanoparticle was recently reported by Luo et al [149]. This system combines colorimetric with fluorescence.…”

Section: Pesticidesmentioning

confidence: 99%

Silver Nanoparticles as Colorimetric Sensors for Water Pollutants

2020

View full text Add to dashboard Cite

This review provides an up-to-date overview on silver nanoparticles-based materials suitable as optical sensors for water pollutants. The topic is really hot considering the implications for human health and environment due to water pollutants. In fact, the pollutants present in the water disturb the spontaneity of life-related mechanisms, such as the synthesis of cellular constituents and the transport of nutrients into cells, and this causes long / short-term diseases. For this reason, research continuously tends to develop always innovative, selective and efficient processes / technologies to remove pollutants from water. In this paper we will report on the silver nanoparticles synthesis, paying attention to the stabilizers and mostly used ligands, to the characterizations, to the properties and applications as colorimetric sensors for water pollutants. As water pollutants our attention will be focused on several heavy metals ions, such as Hg(II), Ni(II),Cu(II), Fe(III), Mn(II), Cr(III/V) Co(II) Cd(II), Pb(II), due to their dangerous effects on human health. In addition, several systems based on silver nanoparticles employed as pesticides colorimetric sensors in water will be also discussed. All of this with the aim to provide to readers a guide about recent advanced silver nanomaterials, used as colorimetric sensors in water.

show abstract

Section: Pesticidesmentioning

confidence: 99%

Silver Nanoparticles as Colorimetric Sensors for Water Pollutants

2020

View full text Add to dashboard Cite

show abstract

“…As a result, monomeric nanoparticles are formed with a different fluorescent profile, enabling a dual-readout pesticide sensor. Other examples of sensors based on AChE activity affecting the fluorescence emission of metallic nanoparticles have also been reported (Long et al, 2015;Luo et al, 2017).…”

Section: Nanoparticlesmentioning

confidence: 94%

Fluorescence-Based Sensing of Pesticides Using Supramolecular Chemistry

Levine

2021

Front. Chem.

View full text Add to dashboard Cite

The detection of pesticides in real-world environments is a high priority for a broad range of applications, including in areas of public health, environmental remediation, and agricultural sustainability. While many methods for pesticide detection currently exist, the use of supramolecular fluorescence-based methods has significant practical advantages. Herein, we will review the use of fluorescence-based pesticide detection methods, with a particular focus on supramolecular chemistry-based methods. Illustrative examples that show how such methods have achieved success in real-world environments are also included, as are areas highlighted for future research and development.

show abstract

“…According to a literature procedure [ 34 ], a 250 mL flat-bottomed flask containing 100 mL of secondary distilled water was placed in an ice-water bath (5 °C). Then, AgNO 3 (250 μL, 100 mM), BH 4 Na (6 mL, 5 mM), and sodium citrate solution (250 μL, 100 mM) were added to the flask with rapid stirring.…”

Section: Methodsmentioning

confidence: 99%

A dual-signal sensor for the analysis of parathion-methyl using silver nanoparticles modified with graphitic carbon nitride

Wan

Yan

et al. 2021

Journal of Pharmaceutical Analysis

Self Cite

View full text Add to dashboard Cite

A highly sensitive and selective method was developed for both UV–vis spectrophotometric and fluorimetric determination of organophosphorus pesticides (OPs). This method used silver nanoparticles (AgNPs) modified with graphitic carbon nitride (g-C 3 N 4 ). The AgNPs reduced the fluorescence intensity of g-C 3 N 4 . Acetylthiocholine (ATCh) could be catalytically hydrolyzed by acetylcholinesterase (AChE) to form thiocholine, which induces aggregation of the AgNPs. This aggregation led to the recovery of the blue fluorescence of g-C 3 N 4 , with excitation/emission peaks at 310/460 nm. This fluorescence intensity could be reduced again in the presence of OPs because of the inhibitory effect of OPs on the activity of AChE. The degree of reduction was found to be proportional to the concentration of OPs, and the limit of fluorometric detection was 0.0324 μg/L (S/N = 3). In addition, the absorption of the g-C 3 N 4 /AgNPs at 390 nm decreased because of the aggregation of the AgNPs, but was recovered in presence of OPs because of the inhibition of enzyme activity by OPs. This method was successfully applied to the analysis of parathion-methyl in real samples.

show abstract

A highly sensitive, dual-signal assay based on rhodamine B covered silver nanoparticles for carbamate pesticides

Cited by 39 publications

References 34 publications

Silver Nanoparticles as Colorimetric Sensors for Water Pollutants

Silver Nanoparticles as Colorimetric Sensors for Water Pollutants

Fluorescence-Based Sensing of Pesticides Using Supramolecular Chemistry

A dual-signal sensor for the analysis of parathion-methyl using silver nanoparticles modified with graphitic carbon nitride

Contact Info

Product

Resources

About