Improved pesticidal activity of fungal metabolite from nomureae rileyi with chitosan nanoparticles

Chandra, J. Helan; Raj, L. F. A. Anand; Namasivayam, S. Karthick Raja; Bharani, R. S. Arvind

doi:10.1109/icanmeet.2013.6609326

Cited by 29 publications

(8 citation statements)

References 3 publications

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“…The particle size of I. fumosorosea nanoparticles ranged between 1.71 and 3.0 µm. The EDX analysis confirmed the presence of elementary iron through sharp peaks at ranges of 0.6 and 6.8 KeV, which is typical for the absorption of metallic iron . The XRD pattern of pure ZVI‐ions is known to display at 2 θ values of 44°–45° .…”

Section: Discussionmentioning

confidence: 99%

“…Our results are also consistent with the findings of some other studies reported on the effects of nano‐formulations on mortality and biological traits of different pests. Chandra et al showed higher pesticidal activity of chitosan‐ Nomuraea rileyi nanoparticle against Spodoptera litura than uncoated fungal metabolite and fungal spores. Similarly, Sabbour observed a significant decrease in LC 50 values when the females of the grasshopper Hetiracris littoralis were treated with chitosan‐destruxin (extracted from M. anisopliae ) nanoparticles.…”

Section: Discussionmentioning

confidence: 99%

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Isaria fumosorosea‐based zero‐valent iron nanoparticles affect the growth and survival of sweet potato whitefly, Bemisia tabaci (Gennadius)

Wang

et al. 2019

Pest Management Science

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BACKGROUND: Nanoparticles can be used for effective pest management as a combined formulation of metal and some other material that has proven efficacy against a given pest. This study reports the synthesis, characterization and efficacy of Isaria fumosorosea-based zero-valent iron (ZVI) nanoparticles against sweet potato whitefly Bemisia tabaci (Gennadius). RESULTS:The I. fumosorosea-ZVI nanoparticles showed a characteristic surface plasmon absorption band at 470 nm during UV-visible spectroscopy. The scanning electron micrographs of nanoparticles showed spherical shaped nanoparticles with sizes ranging between 1.71 and 3.0 m. The EDX analysis showed the characteristic peak of iron at 0.6 and 6.8 KeV. The XRD analysis showed characteristic peaks at 44.72 ∘ , 65.070 ∘ , 82.339 ∘ and 82.65 ∘ . The bioassay results indicated that the percentage of larval mortality of B. tabaci challenged with I. fumosorosea ZVI nanoparticles was both concentration and age dependent. Isaria fumosorosea ZVI nanoparticles showed high pathogenicity against second and third instar nymphs, and pupae with LC 50 values of 19.17, 26.10 and 37.71 ppm, respectively. The LT 50 was lowest for second instar nymphs (3.15 days) and highest for pupae (4.22 days) when inoculated with a concentration of 50 ppm. CONCLUSION: Isaria fumosorosea ZVI nanoparticles can be an eco-friendly tool for effective B. tabaci management.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Isaria fumosorosea‐based zero‐valent iron nanoparticles affect the growth and survival of sweet potato whitefly, Bemisia tabaci (Gennadius)

Wang

et al. 2019

Pest Management Science

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“…The EDAX analysis shows the elemental composition of the ZnO impregnated starch composite prepared from the ball-milled starch and zinc oxide prepared from the ginger 5 Table 3 shows the EDAX of the ball-milled porous starch. Table 4 shows the EDAX of the ZnO coneflowers.…”

Section: Energy Dispersive X-ray Analysis (Edax)mentioning

confidence: 99%

“…The nanostructure ZnO coatings are more air-permeable and efficient as UV-blockers compared to bulk ZnO and enhance the UV-blocking property due to the increased surface area and intense absorption in the UV region [4]. Research on the use of zinc oxide in polyester fibres has also been carried out at Poznan University of Technology and the Textile Institute in Lodz [5]. In Tamaki et al [6] treated the potato starch which shows that surface becomes extremely rough and water absorption increased when treated for 10 h. The 'Green synthesis' or 'biogenic synthesis shows better advancement over chemical and physical method as it is lesser toxic, cost-effective, environmentally friendly and also involve proteins as capping agents.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Zinc Coneflower-Porous Starch composite for textile finishing

Mehrotra

Venkatraman²,

Chaitra³

et al. 2020

SN Appl. Sci.

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Synthesis of Zinc Coneflower-Porous Starch composite for textile finishing was successfully synthesized. The Functional finish was developed to enhance the quality and durability of the textile fabrics against launderable issues, bacterial effects and tensile problems occurred in day to day usage of the textiles. Zinc oxide was prepared from ginger-mediated biogenic synthesis, extracted native starch was ball-milled for nanoporous starch micro particle synthesis. Composite was prepared from ZnO and starch for finishing on the fabric. UV-Vis spectroscopy shows the peak at 380 nm for zinc oxide, XRD patterns show the prominent peaks at 15°, 17°, 18°, 23° for starch and 32°, 34°, 36° for ZnO indicated the presence of the materials. SEM shows the prepared composite with the morphology of ZnO coneflowers like structures and nanoporous starch microparticles and elemental composition of the materials confirmed by EDAX. The Developed finish on the fabric was investigated by SEM analysis, antibacterial studies, tear-strength test and fabric fastness to laundering test.

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“…Chitosan-coated nanoformulations of pyrifluquinazon were found to modify behaviour by rapid feeding cessation, so that insects (eg, green peach aphid, Myzus persicae) starve to death [177]. Further NPs composed of a chitosan nanocarrier and a metabolite from entomopathogenic fungi Nomuraea riley showed higher pesticidal activity against the pest S. litura than the corresponding uncoated fungal metabolite and fungal spores [193].…”

Section: Nanoinsecticidesmentioning

confidence: 99%

Application Of Nanotechnology In Agriculture And Food Industry, Its Prospects And Risks

Jampílek

Kráľová

2015

Ecological Chemistry and Engineering S

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Nanoagrochemicals, such as nanopesticides, nanofertilizers or plant growth stimulating nanosystems, were primarily designed to increase solubility, enhance bioavailability, targeted delivery, controlled release and/or protection against degradation resulting in the reduced amount of applied active ingredients and finally in a decrease of dose-dependent toxicity/burden. This paper is a comprehensive up-to-date review related to the preparation and the biological activity of nanoformulations enabling gradual release of active ingredient into weeds and the body of pests and controlled release of nutrients to plants. The attention is also devoted to the decrease of direct environmental burden and economic benefits due to application of nanoformulations, where less amount of active ingredient is needed to achieve the same biological effect in comparison with bulk. The application of nanotechnology in the areas such as food packaging, food security, encapsulation of nutrients and development of new functional products is analysed. The use of nanoparticles in biosensors for detection of pathogens and contaminants as well as in DNA and gene delivery is discussed as well. Benefits and health risks of nanoagrochemicals are highlighted, and special attention is given to nanoecotoxicology and guidelines and regulatory documents related to the use of nanoformulations in agriculture and food industry.

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Improved pesticidal activity of fungal metabolite from nomureae rileyi with chitosan nanoparticles

Cited by 29 publications

References 3 publications

Isaria fumosorosea‐based zero‐valent iron nanoparticles affect the growth and survival of sweet potato whitefly, Bemisia tabaci (Gennadius)

Isaria fumosorosea‐based zero‐valent iron nanoparticles affect the growth and survival of sweet potato whitefly, Bemisia tabaci (Gennadius)

Synthesis of Zinc Coneflower-Porous Starch composite for textile finishing

Application Of Nanotechnology In Agriculture And Food Industry, Its Prospects And Risks

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