Interaction of borohydride stabilized silver nanoparticles with sulfur-containing organophosphates

Shikha, Shalini; Dureja, Samit; Sapra, Rachit; Babu, J. Nagendra; Haridas, V.; Pattanayek, Sudip K.

doi:10.1039/d1ra06911j

Cited by 9 publications

(3 citation statements)

References 44 publications

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“…A significant initiative was reported by Shikha and other members of the group. The group developed another colorimetric sensor and employed it for recognition of the OP insecticides cum acaricide, phorate over other OPs like chlorpyrifos and malathion . An efficient interaction between borohydride-stabilized silver nanoparticles (AgNPs) and the S–CH 2 –S–CH 2 group in phorate induced the aggregation and showed a naked-eye color change from yellow to green.…”

Section: Exploring Various Photochemical Processes For Pesticide Dete...mentioning

confidence: 99%

“…The group developed another colorimetric sensor and employed it for recognition of the OP insecticides cum acaricide, phorate over other OPs like chlorpyrifos and malathion. 78 An efficient interaction between borohydride-stabilized silver nanoparticles (AgNPs) and the S–CH 2 –S–CH 2 group in phorate induced the aggregation and showed a naked-eye color change from yellow to green. It is noteworthy to mention that degradation of phorate on the silver nanoparticle surface was observed to be accompanied by the formation of cation radicals and the consequent formation of a complex due to combination of the cation radical with the silver nanoparticles.…”

Section: Exploring Various Photochemical Processes For Pesticide Dete...mentioning

confidence: 99%

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Exploring Various Photochemical Processes in Optical Sensing of Pesticides by Luminescent Nanomaterials: A Concise Discussion on Challenges and Recent Advancements

Paul,

Daga,

Dey

2023

ACS Omega

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Food safety is a burning global issue in this present era. The prevalence of harmful food additives and contaminants in everyday food is a significant cause for concern as they can adversely affect human health. More particularly, among the different food contaminants, the use of excessive pesticides in agricultural products is severely hazardous. So, the optical detection of residual pesticides is an effective strategy to counter the hazardous effect and ensure food safety. In this perspective, nanomaterials have played a leading role in defending the open threat against food safety instigated by the reckless use of pesticides. Now, nanomaterial-based optical detection of pesticides has reached full pace and needs an inclusive discussion. This Review covers the advancement of photoprocess-based optical detection of pesticides categorically using nanomaterials. Here, we have thoroughly dissected the photoprocesses (aggregation and aggregation-induced emission (AIE), charge transfer and intramolecular charge transfer (ICT), electron transfer and photoinduced electron transfer (PET), fluorescence resonance energy transfer (FRET), hydrogen bonding, and inner filter effect) and categorically demarcated their significant role in the optical detection of pesticides by luminescent nanomaterials over the last few years.

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Section: Exploring Various Photochemical Processes For Pesticide Dete...mentioning

confidence: 99%

Section: Exploring Various Photochemical Processes For Pesticide Dete...mentioning

confidence: 99%

Exploring Various Photochemical Processes in Optical Sensing of Pesticides by Luminescent Nanomaterials: A Concise Discussion on Challenges and Recent Advancements

Paul,

Daga,

Dey

2023

ACS Omega

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“…However, the hydrolysis of phorate only slightly enhanced its response. The reason could be due to the interaction between silver and sulfur also resulting in the breakage of the thioether bond in the phorate molecule, and the production of thiol [41]. Thus, the hydrolysis-based fluorescent detection had good selectivity for OPs containing P-bonds.…”

Section: Selectivity Analysismentioning

confidence: 99%

Highly Sensitive Fluorescence Detection of Three Organophosphorus Pesticides Based on Highly Bright DNA-Templated Silver Nanoclusters

Huang

Peng

et al. 2023

Biosensors

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It is still challenging to achieve simultaneous and sensitive detection of multiple organophosphorus pesticides (OPs). Herein, we optimized the ssDNA templates for the synthesis of silver nanoclusters (Ag NCs). For the first time, we found that the fluorescence intensity of T base-extended DNA-templated Ag NCs was over three times higher than the original C-riched DNA-templated Ag NCs. Moreover, a “turn-off” fluorescence sensor based on the brightest DNA-Ag NCs was constructed for the sensitive detection of dimethoate, ethion and phorate. Under strong alkaline conditions, the P-S bonds in three pesticides were broken, and the corresponding hydrolysates were obtained. The sulfhydryl groups in the hydrolyzed products formed Ag-S bonds with the silver atoms on the surface of Ag NCs, which resulted in the aggregation of Ag NCs, following the fluorescence quenching. The fluorescence sensor showed that the linear ranges were 0.1–4 ng/mL for dimethoate with a limit of detection (LOD) of 0.05 ng/mL, 0.3–2 µg/mL for ethion with a LOD of 30 ng/mL, and 0.03–0.25 µg/mL for phorate with a LOD of 3 ng/mL. Moreover, the developed method was successfully applied to the detection of dimethoate, ethion and phorate in lake water samples, indicating a potential application in OP detection.

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Detection of Insecticides Residues Using Nanosensors

Azmy

2023

Handbook of Nanosensors

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Interaction of borohydride stabilized silver nanoparticles with sulfur-containing organophosphates

Abstract: Understanding the interaction between borohydride ion stabilized Ag nanoparticles and sulfur bearing organophosphates is the key to developing cost-effective colorimetric pesticide detection technology.

Cited by 9 publications

References 44 publications

Exploring Various Photochemical Processes in Optical Sensing of Pesticides by Luminescent Nanomaterials: A Concise Discussion on Challenges and Recent Advancements

Exploring Various Photochemical Processes in Optical Sensing of Pesticides by Luminescent Nanomaterials: A Concise Discussion on Challenges and Recent Advancements

Highly Sensitive Fluorescence Detection of Three Organophosphorus Pesticides Based on Highly Bright DNA-Templated Silver Nanoclusters

Detection of Insecticides Residues Using Nanosensors

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