| Autor: |
Kesavan Subaharan, Periyasamy Senthamarai Selvan, Thagare Manjunatha Subramanya, Rajendran Senthoorraja, Sowmya Manjunath, Tania Das, Vppalayam Shanmugam Pragadheesh, Nandagopal Bakthavatsalam, Muthu Gounder Mohan, Sengottayan Senthil-Nathan, Sreehari Uragayala, Paulraj Philip Samuel, Renu Govindarajan, Muthuswamy Eswaramoorthy |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
Environmental science and pollution research international. 29(47) |
| ISSN: |
1614-7499 |
| Popis: |
Aedes aegypti is the main vector of yellow fever, chikungunya, Zika, and dengue worldwide and is managed by using chemical insecticides. Though effective, their indiscriminate use brings in associated problems on safety to non-target and the environment. This supports the use of plant-based essential oil (EO) formulations as they are safe to use with limited effect on non-target organisms. Quick volatility and degradation of EO are a hurdle in its use; the present study attempts to develop nanoemulsions (NE) of Trachyspermum ammi EO and its constituent thymol using Tween 80 as surfactant by ultrasonication method. The NE of EO had droplet size ranging from 65 ± 0.7 to 83 ± 0.09 nm and a poly dispersity index (PDI) value of 0.18 ± 0.003 to 0.20 ± 0.07 from 1 to 60 days of storage. The NE of thymol showed a droplet size ranging from 167 ± 1 to 230 ± 1 nm and PDI value of 0.30 ± 0.03 to 0.40 ± 0.008 from 1 to 60 days of storage. The droplet shape of both NEs appeared spherical under a transmission electron microscope (TEM). The larvicidal effect of NEs of EO and thymol was better than BEs (Bulk emulsion) of EO and thymol against Ae. aegypti. Among the NEs, thymol (LC |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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