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Objective: This study aimed to compare the resistance rates of to beta-cypermethrin nanoemulsion and conventional emulsion and establish reference values via biochemical detection for conventional emulsion.
Methods: We conducted experiments using subcultured and applied the micro-drop method for treatment. Subsequently, the activity of metabolic enzymes was measured using spectrophotometry. Profile analysis was employed to study the resistance rates of beta-cypermethrin nanoemulsion and beta-cypermethrin emulsion.
Results: The regression equation for the relationship between generation and resistance factor in treated with beta-cypermethrin nanoemulsion was as follows: = 0.091 + 0.991, with an -value of 0.990 ( = 95.184, = 0.01 < 0.05). Similarly, the regression equation for treated with emulsion was = 0.376 + 1.051, with an -value of 0.993 ( = 141.094, = 0.007 < 0.05). The comparison of slopes between these two regression equations yielded an -value of 8.61, indicating a significant difference ( = 0.001 < 0.05).
Conclusion: Our findings suggest that the resistance factor in treated with beta-cypermethrin nanoemulsion differs from that treated with beta-cypermethrin emulsion. Specifically, the resistance factor of beta-cypermethrin nanoemulsion increased at a slower rate compared to beta-cypermethrin emulsion.
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http://dx.doi.org/10.3390/toxics11100834 | DOI Listing |
Heliyon
August 2024
Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, Jiangsu, China.
Toxics
October 2023
Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China.
Objective: This study aimed to compare the resistance rates of to beta-cypermethrin nanoemulsion and conventional emulsion and establish reference values via biochemical detection for conventional emulsion.
Methods: We conducted experiments using subcultured and applied the micro-drop method for treatment. Subsequently, the activity of metabolic enzymes was measured using spectrophotometry.
Pest Manag Sci
November 2023
Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur (UNS), San Juan 670, Bahía Blanca, Buenos Aires, 8000, Argentina.
Background: The development of novel and ecofriendly tools plays an important role in insect pest management. Nanoemulsions (NEs) based on essential oils (EOs) offer a safer alternative for human health and the environment. This study aimed to elaborate and evaluate the toxicological effects of NEs containing peppermint or palmarosa EOs combined with β-cypermethrin (β-CP) using ultrasound technique.
View Article and Find Full Text PDFUltrason Sonochem
March 2020
Laboratorio de Zoología de Invertebrados II, Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur, San Juan 670 (B8000CPB), Bahía Blanca, Buenos Aires, Argentina; INQUISUR-CONICET-Universidad Nacional del Sur, Av. Alem 1253 (B8000CPB), Bahía Blanca, Buenos Aires, Argent
Over the last years, nanotechnology has contributed to the development of new botanical insecticides formulations based on essential oils (EO), which are safe for the human health and the environment. Nanoemulsions (NEs) can enhance the bioactivity of the EO to prevent the premature volatility and degradation of the active ingredients. In our work, geranium EO (Geranium maculatum L.
View Article and Find Full Text PDFJ Colloid Interface Sci
October 2007
College of Chemistry and Molecular Science, Wuhan University, Wuhan 430072, China.
A two-step process for formation of nanoemulsions in the system water/poly(oxyethylene) nonionic surfactant/methyl decanoate at 25 degrees C is described. First, all the components were mixed at a certain composition to prepare a microemulsion concentrate, which was rapidly subjected into a large dilution into water to generate an emulsion. Bluish transparent oil-in-water (O/W) nanoemulsions were formed only when the concentrate was located in the bicontinuous microemulsion (BC) or oil-in-water microemulsion (Wm) region.
View Article and Find Full Text PDF