One-pot synthesis of silver nanocomposites from Achyranthes aspera: An eco-friendly larvicide against Aedes aegypti L.
- Author:
Aarti SHARMA
1
;
Pushplata TRIPATHI
1
;
Sarita KUMAR
2
Author Information
- Publication Type:Journal Article
- Keywords: Achyranthes aspera; Aedes aegypti; EDX; FT-IR; Larvicidal; SEM-TEM; Silver nanocomposites; XRD
- From:Asian Pacific Journal of Tropical Biomedicine 2020;10(2):54-64
- CountryChina
- Language:Chinese
- Abstract: Objective: To formulate silver nanocomposites from Achyranthes aspera leaf extracts and evaluate its larvicidal activity against Aedes aegypti. Methods: The silver nanocomposites were synthesized from Achyranthes aspera leaf extracts. The process was optimized and traced through UV-visible and photon correlation spectroscopy. The larvicidal potential of silver nanocomposites of Achyranthes aspera leaf extracts was assessed against the early fourth instars of Aedes aegypti and three non-target organisms. Furthermore, the most effective and eco-safe nanocomposite was characterized by different biophysical techniques including scanning electron microscopy (SEM), energy dispersive X-ray (EDX) spectroscopy, transmission electron microscopy (TEM), X-ray diffraction (XRD) and Fourier transform-infrared spectroscopy (FT-IR). Results: The formulated silver nanocomposites exhibited efficient larvicidal efficacy against Aedes aegypti. Bioassay with silver nanocomposites formulated using different AgNO 3 concentrations (3, 4, and 5 mM) revealed respective LC
