Arnoldo E. Alfaro-Corres¹, Daniel González-Mendoza², Esaú Ruiz-Sánchez^1,*, Carlos Ail-Catzin², Benjamín Valdez-Salas³, Federico Gutiérrez-Miceli⁴, Arturo Reyes-Ramírez¹, Jacques Fils Pierre¹

Journal of Renewable Materials, Vol.11, No.11, pp. 3933-3943, 2023, DOI:10.32604/jrm.2023.031129 - 31 October 2023

Abstract This work was carried out to evaluate the insecticidal effect of mono, bi and trimetallic nanoparticles (NPs) from leaf extract of habanero pepper (Capsicum chinense Jacq.) on the red flour beetle (Tribolium castaneum herbst.) and cotton mealybug (Phenacoccus solenopsis Tinsley). The results showed that Cu NPs, Cu/Mn NPs and Zn/Cu NPs had high insecticidal effect against T. castaneum (63%–80% mortality after 96 h). The Cu NPs and Zn/Cu NPs showed also insecticidal effect against P. solenopsis, but to a lesser extent (20%–28% after 96 h). With regards to the physicochemical characterization, Cu NPs had a zeta potential of 21.1 More > Graphic Abstract

Vianey Mendez-Trujillo¹, Benjamín Valdez-Salas², Mario Curiel-Alvarez², Ernesto Beltran-Partida², Arnoldo Alfaro-Corres³, Esaú Ruiz-Sanchez³, Gerardo Bautista-Trujillo⁴, Olivia Tzintzun Camacho⁵, Onecimo Grimaldo-Juarez⁵, Carlos Ceceña-Duran⁵, Carlos Ail-Catzin⁵, Daniel González-Mendoza^5,*

Journal of Renewable Materials, Vol.10, No.10, pp. 2543-2552, 2022, DOI:10.32604/jrm.2022.020965 - 08 June 2022

Abstract The present study was conducted to evaluate the impact of bimetallic nanoparticles (NPs) of copper (Cu) and zinc (Zn) from Crotalaria longirostrata on the insect mortality and cell viability of Phenacoccus solenopsis. The biosynthesis of bimetallic nanoparticles (Cu/Zn-NPs) from C. longirostrata was confirmed by the presence of a single peak around 378 nm. The hydrodynamic diameter of the Cu/Zn nanoparticles varied from 59 to 119 nm and their zeta potential was found to be −30.90 mV. The EDX analysis showed a strong signal for Cu and Zn (8 and 8.6 keV, respectively). The Cu/Zn-NPs showed an effective insecticide activity against P. solenopsis with More >