Abstract

SYNTHESIS AND CHARACTERIZATION OF CHITOSAN NANOPARTICLES LOADED CARICA PAPAYA LEAVES EXTRACT AND TEST OF THEIR ACTIVITY IN KILLING OF YELLOW SNAILS

Tran Thi Bich Quyen*, Ly Tan An, Ha Van Tien, Nguyen Phu Qui and
Luong Huynh Vu Thanh

ABSTRACT

In this study, chitosan nanoparticles (CTS NPs) have been suscessfully combined with Carica papaya leaves (CPLs) extract for 30 min at room temperature. The prepared chitosan nanoparticles (CTS NPs)/Carica papaya leaves (CPLs) extract have been characterized by UV-vis, FTIR, SEM and TEM. The result showed these CTS NPs/CPLs extract obtained with the average particle size of ~20-50 nm. Moreover, the synthesized CTS NPs/CPLs extract also showed efficient their anti-organism activity for the killing of yellow snails occurred completely after 24 h. The presence of a small powder amount (500 mg) of chitosan nanoparticles (CTS NPs)/Carica papaya leaves (CPLs) extract in (5 L) water was enough to inhibit and kill yellow snails completely only after 24 h.

Keywords: Chitosan nanoparticles (CTS NPs), Carica papaya leaves (CPLs) extract, yellow snails, biomaterial, anti-organisms.