Structural characterization and evaluation of mosquito-larvicidal property of silver nanoparticles synthesized from the seaweed, <i>Turbinaria ornata</i> (Turner) J. Agardh 1848

Deepak, Paramasivam; Sowmiya, Rajamani; Ramkumar, Rajendiran; Aiswarya, Dilipkumar; Perumal, Pachiappan

doi:10.1080/21691401.2016.1198365

Cited by 56 publications

(24 citation statements)

References 42 publications

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“…The presence of strong peaks of silver element around 3 KeV were observed, which indicate that the Ag is the major element in AgNPs, thus confirming the successful biosynthesis of AgNPs [28]. Similar peak (3 keV) has been reported by other researchers [29].…”

Section: Characterization Of Silver Nanoparticlessupporting

confidence: 87%

Larvicidal and pupicidal evaluation of silver nanoparticles synthesized using Aquilaria sinensis and Pogostemon cablin essential oils against dengue and zika viruses vector Aedes albopictus mosquito and its histopathological analysis

Ga’al

Fouad²,

Mao

et al. 2017

Artificial Cells, Nanomedicine, and Biotechnology

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Mosquitoes pose a threat to humans and animals, causing millions of deaths every year. Vector control by effective eco-friendly pesticides of natural origin is a serious issue that requires urgent attention. The employment of green-reducing extracts for nanoparticles biosynthesis in a rapid and single-step process represents a promising strategy. In this study, silver nanoparticles (AgNPs) were biofabricated using an essential oil of Aquilaria sinensis (AsEO) and Pogostemonis Herba essential oil of Pogostemon cablin (PcEO) in one step and cost-effective manner. UV-vis spectrophotometry, Fourier transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy, X-ray diffraction analysis and energy-dispersive X-ray spectroscopy were used to confirm the AgNPs formation and their biophysical characterization. The larvicidal and pupicidal toxicity of AsEO, PcEO and biosynthesized AgNPs were evaluated against larvae and pupae of the dengue and Zika virus vector Aedes albopictus. Compared to the tested essential oils, the biofabricated AgNPs showed the highest toxicity against larvae and pupae of Ae.albopictus. In particular, the LC values of AsEO ranged from 44.23 (I) to 166 (pupae), LC values of PcEO ranged from 32.49 (I) to 90.05(IV), LC values of AsEO-AgNPs from 0.81 (I) to 1.12 (IV) and LC values of PcEO-AgPNs from 0.85 (I) to 1.19 (IV). Furthermore, histological analysis of the midgut cells of the control and treated larvae exhibited that the epithelial cells and brush border were highly affected by the fabricated AgNPs compared to the essential oils (AsEO and PcEO). Overall, the A. sinensis and P. cablin essential oils fabricated AgNPs have a potential of application as a biopesticide for mosquito control through safer and cost-effective approach.

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Section: Characterization Of Silver Nanoparticlessupporting

confidence: 87%

Larvicidal and pupicidal evaluation of silver nanoparticles synthesized using Aquilaria sinensis and Pogostemon cablin essential oils against dengue and zika viruses vector Aedes albopictus mosquito and its histopathological analysis

Ga’al

Fouad²,

Mao

et al. 2017

Artificial Cells, Nanomedicine, and Biotechnology

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“…be attributed to electrons near each particle surface which become delocalized and are shared amongst neighbouring particles. In the case of samples A-B which were reduced by NaBH 4 , it was obvious that a similar trend with the absorbance maxima near 400 nm was obtained indicating a good agreement with Deepak et al 18 Absorbance spectra of samples D-G showed different trends. In the case of sample D, a shift of absorbance maximum to the shorter wavelength 351 nm is obvious while sample F shows a shift of absorbance maximum to the longer wavelength 423 nm.…”

Section: The Spectral Analysis Of Agnpssupporting

confidence: 85%

Development of New Silver Nanoparticles Suitable for Materials with Antimicrobial Properties

Ruttkay-Nedecký

Skaličková

Kępińska

et al. 2019

j nanosci nanotechnol

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Silver nanoparticles are the most important nanoparticles in connection with the antimicrobial effect. Nowadays, the green synthesis of various types of nanoparticles is rapid, effective and produce less toxic nanoparticles often with specific properties. In our experiment we have developed and described in details various types of silver nanoparticles synthesized chemically or by the green synthesis. Nine different silver nanoparticles were synthesized, three by citrate method at different pHs (8; 9; 10), four using gallic acid at alkaline pHs (10; 11), and two by green synthesis using green tea and coffee extracts, both at pH 9. Characterisation of silver nanoparticles was performed using dynamic light scattering, scanning electron microscopy, and ultraviolet-visible absorption spectroscopy. Silver nanoparticles prepared by green synthesis showed the highest antioxidant activity and also ability for quenching of free radicals. Antibacterial activity of silver nanoparticles was determined on bacterial cultures such as Staphylococcus aureus and Escherichia coli. Silver nanoparticles synthesized using green tea and coffee extracts showed the highest antibacterial activity for both bacterial strains. Minimal inhibition concentration for both strains was found to be 65 M at each silver nanoparticle synthesized using green synthesis.

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“…The antibacterial activities of the GA-AuNPs were evaluated by the agar well diffusion method [16]. Briefly, a series of sterile Nutrient agar media plates were swabbed with 100 μL of overnight bacterial cultures of Escherichia coli (MTCC 443), Serratia marcescens (MTCC 97), Klebsiella pneumonia (MTCC 432) and Bacillus subtilis (MTCC 441) Cultures respectfully.…”

Section: Antibacterial Activitymentioning

confidence: 99%

“…The seaweed extracts possesses bioactive metabolites like flavonoids, phenols, citric acid, ascorbic acid, polyphenolic, terpenes, alkaloids and reductase could act as reducing agents [14]. The earlier research suggest that there are some marine algae which are very good biological material for the synthesis of nanoparticles [15][16][17]. Interestingly we had done our study previously in Gelidiella acerosa for the first time, it has been reported that the synthesis of highly stable Ag-NPs, characterization and its antimicrobial activity [18].…”

Section: Introductionmentioning

confidence: 99%

Facile green synthesis of gold nanoparticles from marine algae Gelidiella acerosa and evaluation of its biological Potential

Senthilkumar¹,

Surendran²,

Sudhagar³

et al. 2019

SN Appl. Sci.

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In this present research, the Gold nanoparticles (GA-AuNPs) produced from Gelidiella acerosa, marine algae using green synthesis method was evaluated for its antidiabetic, antibacterial and antioxidant activity. Well-developed GA-AuNPs were effectively characterized using advanced analytical instruments like HRTEM, UV-visible, SEM and XRD. This analysis exposed GA-AuNPs to be present with spherical, hexagonal structure and crystalline nature. The average size of GA-AuNPs particles was estimated to lie between 5.81 nm to 117.59 nm by using Debye-Scherer equation. The enzyme inhibitory property of (IC 50 ) of G. acerosa aqueous extract and synthesized gold nanoparticles from G. acerosa against α amylase and α-glucosidase enzyme was found to be 2.1 ± 0.01, 3.7 ± 0.01 µg/mL and 2.8 ± 0.02, 4.1 ± 0.01, respectively. Further antioxidant assessment of GA-AuNPs were examined using DPPH and FRAP assays, the results exhibited that the strong antioxidant activity were observed in all the concentrations when compared with standard. Finally antibacterial activity was evaluated the GA-AuNPs against gram positive and gram negative bacteria, the strong antibacterial activity was observed in both the bacterial strains when compared with standard antibiotic. The GA-AuNPs from marine algae was exhibited to be strong inhibitory activity against alpha amylase and alpha glucosidase enzyme, antioxidant activity and antibacterial activity, these GA-AuNPs are projected to have potential biological applications.

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Structural characterization and evaluation of mosquito-larvicidal property of silver nanoparticles synthesized from the seaweed, Turbinaria ornata (Turner) J. Agardh 1848

Cited by 56 publications

References 42 publications

Larvicidal and pupicidal evaluation of silver nanoparticles synthesized using Aquilaria sinensis and Pogostemon cablin essential oils against dengue and zika viruses vector Aedes albopictus mosquito and its histopathological analysis

Larvicidal and pupicidal evaluation of silver nanoparticles synthesized using Aquilaria sinensis and Pogostemon cablin essential oils against dengue and zika viruses vector Aedes albopictus mosquito and its histopathological analysis

Development of New Silver Nanoparticles Suitable for Materials with Antimicrobial Properties

Facile green synthesis of gold nanoparticles from marine algae Gelidiella acerosa and evaluation of its biological Potential

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