Nanoemulsion of eucalyptus oil and its larvicidal activity against <i>Culex quinquefasciatus</i>

Sugumar, Saranya; Clarke, Sue; Nirmala, M. Joyce; Tyagi, B. K.; Mukherjee, Amitava; Chandrasekaran, N.

doi:10.1017/s0007485313000710

Cited by 188 publications

(103 citation statements)

References 51 publications

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“…The natural product-based nanoformulations have been developed in order to evaluate their larvicidal potential, including nickel nanoparticles, silver nanoparticles, nanoemulsions among others (Rawani et al, 2013;Angajala et al, 2014;Suganya et al, 2014;Veerakumar et al, 2014;Sugumar et al, 2014). Larvicidal evaluation of copaiba oleoresin has been related against Aedes aegypti, the main vector of dengue, a serious Brazilian health problem .…”

Section: Resultsmentioning

confidence: 99%

Development of a larvicidal nanoemulsion with Copaiba (Copaifera duckei) oleoresin

Rodrigues

Ferreira

Vilhena

et al. 2014

Revista Brasileira de Farmacognosia

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CopaibaLarvicidal Nanoemulsion Oleoresin A B S T R A C T Copaiba (Copaifera duckei Dwyer, Fabaceae) oleoresin is an important Amazonian raw material. Despite its insecticidal potential, poor water solubility remains a challenge for the development of effective and viable products. Nanotechnology has emerged as a promising area to solve this problem, especially oil-in-water nanoemulsions. On this context, the aim of the present study was to develop oil-in-water nanoemulsions using copaiba oleoresin dispersed through a high internal phase; and evaluate its potential insecticidal action against Aedes aegypti larvae. Overall, 31 formulations were prepared, ranging from 11.5 ± 0.2 to 257.3 ± 4.1 nm after one day of manipulation. Some of them reached small mean droplet sizes (< 200 nm) and allowed achievement of a nanoemulsion region. The formulation consisted of 5% (w/w) of copaiba oil, 5% (w/w) of surfactant and 90% (w/w) of water, which presented mean droplet size of 145.2 ±0.9 nm and polidispersity of 0.378 ± 0.009 after one day of manipulation, and these were evaluated for larvicidal potential. According to mortality level (250 ppm -93.3 after 48 h), this nanoemulsion was classified as a promising insecticidal agent against Aedes aegypti larvae. The present study allowed the development of low-cost ecofriendly green natural-based nanoformulations with potential larvicidal activity, using a nanobiotechnology approach.

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Section: Resultsmentioning

confidence: 99%

Development of a larvicidal nanoemulsion with Copaiba (Copaifera duckei) oleoresin

Rodrigues

Ferreira

Vilhena

et al. 2014

Revista Brasileira de Farmacognosia

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“…36 Briefly, oil-in-water nanoemulsion was formulated using eucalyptus oil (6%), nonionic surfactant (Tween 80; Tween 20), and water (1:2 v/v). Initially, the emulsion was prepared by adding water to oil and surfactant mixture using a magnetic stirrer.…”

Section: Formulation Of Eucalyptus Oil Nanoemulsionmentioning

confidence: 99%

Eucalyptus oil nanoemulsion-impregnated chitosan film: antibacterial effects against a clinical pathogen, Staphylococcus aureus, in vitro

Sugumar¹,

Mukherjee²,

Chandrasekaran³

2015

IJN

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Eucalyptus oil ( Eucalyptus globulus ) nanoemulsion was formulated using low-and high-energy emulsification methods. Development of nanoemulsion was optimized for system parameters such as emulsifier type, emulsifier concentration, and emulsification methods to obtain a lower droplet size with greater stability. The minimized droplet diameter was achieved using the high-energy method of ultrasonication. Tween 80 was more effective in reducing droplet size and emulsion appearance when compared to Tween 20. Stable nanoemulsion was formulated with Tween 80 as a surfactant, and the particle size was found to be 9.4 nm (1:2 v/v). The eucalyptus oil nanoemulsion was impregnated into chitosan (1%) as a biopolymer in varying concentrations. Further, the film was characterized by moisture content, microscopic study, X-ray diffraction, and Fourier transform infrared spectroscopy. Also, the film with and without nanoemulsion was evaluated against Staphylococcus aureus . The nanoemulsion-impregnated chitosan film showed higher antibacterial activity than chitosan film. These results support the inclusion of nanoemulsion-impregnated chitosan film in wound management studies.

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“…On this context, ecofriendly alternative integrated control programs have emerged as promising alternatives (Sugumar et al, 2014) and essential oil based nanoemulsions have been recognized as valuable products for mosquito control (Ghosh et al, 2013). Rosmarinus officinalis L., Lamiaceae, essential oil has demonstrated larvicidal properties (Prajapati et al, 2005;Freitas et al, 2010;Amer and Mehlhorn, 2006a) and repellent activity (Prajapati et al, 2005;Amer and Mehlhorn, 2006b).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of larvicidal activity of a nanoemulsion of Rosmarinus officinalis essential oil

Duarte

Amado

Oliveira

et al. 2015

Revista Brasileira de Farmacognosia

144

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a b s t r a c tNanotechnology has emerged as a promising area for innovative products, including insecticides. Dengue is a tropical disease which is considered a critical health problem in developing countries, due to negative impacts to the environment caused by synthetic chemicals used for vector control (Aedes aegypti). Thus, developing of natural products based insecticidal are considered very promising. On this context, the aim of the present study was to obtain an O/W nanoemulsion containing Rosmarinus officinalis L., Lamiaceae, essential oil and evaluate its larvicidal activity against A. aegypti. Low energy method was employed, allowing achievement of small droplets. The nanoemulsion also presented low polydispersity and mean droplet below 200 nm, even after 30 days of storage. Potential mortality levels were observed after 24 h (80 ± 10%) and 48 h (90 ± 10%) in A. aegypti larvae at final concentration of 250 ppm, related to R. officinalis essential oil. This study contributes to nanobiotechnology of natural products, presenting a potential larvicidal nanoemulsion prepared with R. officinalis essential oil. Moreover, nanoemulsion production involved a non-heating procedure, describing easy technique which may be useful for integrative control programs.

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Nanoemulsion of eucalyptus oil and its larvicidal activity against Culex quinquefasciatus

Cited by 188 publications

References 51 publications

Development of a larvicidal nanoemulsion with Copaiba (Copaifera duckei) oleoresin

Development of a larvicidal nanoemulsion with Copaiba (Copaifera duckei) oleoresin

Eucalyptus oil nanoemulsion-impregnated chitosan film: antibacterial effects against a clinical pathogen, Staphylococcus aureus, in vitro

Evaluation of larvicidal activity of a nanoemulsion of Rosmarinus officinalis essential oil

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