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Assessment of larvicidal and antioxidant activities of crude extract and synthesised silver nanoparticles from leaves and stem of Ranunculus sceleratus

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Title Assessment of larvicidal and antioxidant activities of crude extract and synthesised silver nanoparticles from leaves and stem of Ranunculus sceleratus
 
Creator Rawani, Anjali
Gope, Arpita
Parvin, Ismat
Khanrah, Jayeeta
Rahman, Nafiur
 
Subject Anti-oxidant activity
Culex quinquefasciatus
Insecticidal activity
Phytochemical analysis
Ranunculus sceleratus
Silver nanoparticles
 
Description 436-448
The present study evaluates the efficacy of crude extract and synthesised silver nanoparticles (AgNPs) of leaves and stem
of Ranunculus sceleratus L. against immature larval stages of Culex quinquefasciatus. Different concentrations of crude
extract of both plant parts were tested against 1st to 4th instar larval stages, and synthesized AgNPs were tested against 3rd
instar larvae of Cx. quinquefasciatus. The characterisation of synthesized silver nanoparticles (AgNPs) was also carried out.
The antioxidant activity of the methanolic extract of both plant parts was also explored. A 100% mortality was observed in
1% crude extract and 5 ppm of synthesized AgNPs of leaves and stem of R. sceleratus against 1st and 2nd instar larvae,
respectively. The UV–Vis spectrophotometer confirmed the synthesis of AgNPs where the absorption maximum (A0) was
recorded at 450 nm and 440 nm, respectively, in leaves and fruits of R. sceleratus. The scanning electron micrographic
(SEM) of the AgNPs indicates that almost all the particle’s surface is rough in shape. The core shell morphology of
synthesised AgNPs were identified by FTIR measurements. 80 μL concentration of methanol extract of both the plant parts
almost completely inhibited DPPH with IC50 values of 44.93 and 22.17 μL, respectively, in the leaves and stem of R.
sceleratus. It is concluded that both the plant parts of R. sceleratus showed excellent mosquito larvicidal activities and good
free radical scavenging activity.
 
Date 2024-09-26T11:05:30Z
2024-09-26T11:05:30Z
2024-09
 
Type Article
 
Identifier 0976-0512 (Online); 0976-0504 (Print)
http://nopr.niscpr.res.in/handle/123456789/64615
https://doi.org/10.56042/ijnpr.v15i3.5830
 
Language en
 
Relation Int. cl. (2021.01)− A01N 65/00
A61K 36/00
A61K 36/71
A61K 127/00
A61K 135/00
A61P 39/00
 
Publisher NIScPR-CSIR,India
 
Source IJNPR Vol.15(3) [September 2024]