Mosquito-Larvicidal Potential of Metal and Oxide nanoparticles Synthesized from Aqueous Extract of the Seagrass, Cymodocea serrulata

Amutha, Vadivel; Deepak, Paramasivam; Kamaraj, Chinnaperumal; Balasubramani, Govindasamy; Aiswarya, Dilipkumar; Dhayalan, Arul; Santhanam, P.; Ballamurugan, A. M.; Perumal, Pachiappan

doi:10.1007/s10876-019-01542-7

Cited by 29 publications

(7 citation statements)

References 34 publications

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“…The deleterious effects of NCs on the larval mid-gut indicate the high systemic toxicity of AA-AgNCs impairing the digestion, absorption, and assimilation of nutrients in larvae impacting their growth and survival. Similar effects of phytomediated NCs on the mid-gut of the A. aegypti larvae when exposed to H. coronarium-synthesized silver nanoparticles (Kalimuthu et al, 2017), Ulva lactuca-fabricated ZnO-NCs (Ishwarya et al, 2018), C. serrulata-assisted Ag, Pd, and TiO 2 NCs (Amutha et al, 2019), and Leonotis nepetifolia silver nanoparticles (Manimegalai et al, 2020) have been reported. Likewise, silver nanoparticles biofabricated using essential oils of Aquilaria sinensis (AsEO) and Pogostemon cablin (PcEO) caused significant damage to the epithelial and brush border cells of the larval mid-gut of A. albopictus (Ga´al et al, 2018).…”

Section: Discussionsupporting

confidence: 65%

Morphological and physiological changes induced by Achyranthes aspera-mediated silver nanocomposites in Aedes aegypti larvae

Sharma

Mishra²,

Dagar³

et al. 2022

Front. Physiol.

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Aedes aegypti is responsible for the global spread of several ailments such as chikungunya, dengue, yellow fever, and Zika. The use of synthetic chemicals is the primary intervention in mosquito management. However, their excessive utilization resulting in the spread of toxic ingredients in the environment and posing threats to beneficial organisms has prompted the recommendation for the use of biologically synthesized nanocomposites as a promising approach for vector control. Silver nanocomposites were synthesized using leaf (AL-AgNCs) and stem (AS-AgNCs) extracts of Achyranthes aspera. The early fourth instars of A. aegypti were exposed to lethal doses of these nanocomposites to evaluate their effects on larval development, behavior, morphology, and mid-gut histoarchitecture. The cellular damage and deposition of nanocomposite residues in the mid-gut were studied using light and transmission electron microscopy. The A. aspera silver nanocomposite (AA-AgNC)-exposed larvae exhibited dose-dependent extended duration of development and diminished adult emergence, but did not exhibit modified behavior. Intense damage to the cuticle membrane and slight contraction in the internal membrane of anal papillae were noticed. Morphologically, the mid-gut appeared disorganized, darkly pigmented, and shrunk. Histological investigations of the mid-gut revealed significantly disordered internal architecture with lysed cells, damaged peritrophic membrane and microvilli, disintegrated epithelial layer, and a ruptured and displaced basement membrane. Visualization of the larval mid-gut through TEM showed severe cellular damage and aggregation of black spots, indicating the deposition of silver particles released by AA-AgNCs. The investigations revealed the bio-efficacy of A. aspera-mediated AgNCs against A. aegypti inducing stomach and contact toxicity in the larvae. The utilization of AA-AgNCs is recommended for A. aegypti management as a safe and effective intervention.

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Section: Discussionsupporting

confidence: 65%

Morphological and physiological changes induced by Achyranthes aspera-mediated silver nanocomposites in Aedes aegypti larvae

Sharma

Mishra²,

Dagar³

et al. 2022

Front. Physiol.

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“…Biolm inhibition of levan-Ag/AgCl NPs may be due to the inhibitory capacity on gene expressions linked to motility and biolm generation. 21,69 From the obtained results, it can be concluded that levan-Ag/ AgCl possesses a capacity to reduce biolm and contrast its formation.…”

Section: Inuence Of Levan-ag/agcl On Antibiolm Activitymentioning

confidence: 85%

Hybrid levan–Ag/AgCl nanoparticles produced by UV-irradiation: properties, antibacterial efficiency and application in bioactive poly(vinyl alcohol) films

et al. 2021

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“…Histopathological alterations in the midgut of larva post exposure to bioactive contribute to a better understanding in the possible mode of action of particular bio-pesticide against a larva 60 . Since, the midgut is composed of muscle (M), Adipose tissue (AT) and epidermal cells.…”

Section: Resultsmentioning

confidence: 99%

Impregnation of pectin-cedarwood essential oil nanocapsules onto mini cotton bag improves larvicidal performances

Kala

Sogan

Naik

et al. 2020

Sci Rep

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The use pesticide is one of the indispensable means to combat mosquito borne diseases. However, the repeated use of synthetic pesticides has induced resistance in the vector pest along with undesirable impact on the environment. The biodegradability, non-persistent and user's safety are the root cause to prefer plant-derived pesticides to synthetic ones. The botanical based pesticides tend to degrade rapidly under the influence of several environmental factors. For the feasible application as pesticides, the plant products are formulated either as liquid or as purely solid. Despite well-established formulation technology in pesticide delivery, their handling trouble is being ignored. There is difficulty in liquid formulation of pesticide products, as they are prone to splashing and spillage, resulting in contamination, wastage and direct exposure to skin; whereas a solid formulation tends to produce dust. In the present work, cedarwood (Cedrus deodara) essential oil embedded pectin nanocapsules were produced. The nanocapsules were characterized according to their morphology, size, encapsulation efficiency and thermal stability. Furthermore, the nanocapsules were impregnated onto mini cotton tea bags to be employed as RTU (ready to use) formulation for treating the breeding sites of mosquitoes. The larvicidal activity of the bags treated with pectin-cedar wood nanocapsules was assessed against malaria vector, Anopheles culicifacies and 98% mortality was recorded till 4 weeks, this suggests its potential and hassle free applications in controlling mosquito vector. Global health threats, primarily due to mosquito borne diseases can devastate communities in social and economic terms and hinder development progress 1. Among the various vector borne diseases, malaria is the major public health issue, which transmits through the bite of Anopheles mosquitoes 2. According to the World Health Organization (WHO) 2019 report, malaria causes 228 million morbidity cases and 405,000 number of mortality 3. Anopheles culicifacies is alone accountable for 60-65% of the malaria burden 4. A Mosquito-borne disease remains a challenge since there is no vaccine, and further drug resistance is an increasing threat. Under these circumstances, vector control plays a vital role and often remains the only way to prevent disease outbreaks. The control of malaria vector, Anopheles, relies upon indoor residual spray (IRS) and insecticide treated nets (ITN) 5. Several other control tools have also been proposed including; nano pesticides, microbial pesticides (that are natural occurring bacteria, fungi and viruses) and pesticides of plant origin, which may act as repellents, oviposition deterrents and larvicides etc. 6,7. A new generation biotechnological tool in mosquito control program, based on genetically modified mosquitoes and sterile Insect Technique (SIT) is also being considered 7,8. Despite significant progress so far, further investigations are needed to determine if genetically modification based strategies can be an effective metho...

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Mosquito-Larvicidal Potential of Metal and Oxide nanoparticles Synthesized from Aqueous Extract of the Seagrass, Cymodocea serrulata

Cited by 29 publications

References 34 publications

Morphological and physiological changes induced by Achyranthes aspera-mediated silver nanocomposites in Aedes aegypti larvae

Morphological and physiological changes induced by Achyranthes aspera-mediated silver nanocomposites in Aedes aegypti larvae

Hybrid levan–Ag/AgCl nanoparticles produced by UV-irradiation: properties, antibacterial efficiency and application in bioactive poly(vinyl alcohol) films

Impregnation of pectin-cedarwood essential oil nanocapsules onto mini cotton bag improves larvicidal performances

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