1. Molluscicidal activities of green-synthesized Alstonia congensis silver nanoparticles
- Author
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Oyetunde T Oyeyemi, Blessing M Babalola, Taiwo C Akinmulero, Precious A Adesida, and Ifeoluwa T Oyeyemi
- Subjects
alstonia congensis ,physa acuta ,bulinus forskalii ,nanoparticles ,embryo inhibition ,molluscicide ,Arctic medicine. Tropical medicine ,RC955-962 ,Biology (General) ,QH301-705.5 - Abstract
Objective: To evaluate the efficacy of Alstonia congensis green-synthesized nanoparticles as a molluscicide against snail hosts of trematodes. Methods: The ethanolic leaf extract of Alstonia congensis was used to synthesize silver nanoparticles. The formulation was characterized by Fourier transform infrared spectroscopy, X-ray powder diffraction, and scanning electron microscope/energy-dispersed X-ray. The ovicidal and molluscicidal activities of the Alstonia congensis extract and its nanoparticles were tested against Physa acuta and Bulinus forskalii at different concentrations. Results: The green-synthesized nanoparticles inhibited embryonic development within the egg masses of the two snails in all the tested concentrations. Alstonia congensis extract did not show molluscicidal properties against adult Physa acuta but showed a very weak activity against Bulinus forskalii. Moreover, the synthesized nanoparticles showed significantly high molluscicidal activity against adult snails within 5-40 min of exposure in a concentration-dependent manner (P
- Published
- 2023
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