Pittarate Sarayut, Perumal Vivekanandhan, Kannan Swathy, Mekchay Supamit, Thungrabeab Malee, Suttiprapan Piyawan, Sengottayan Senthil-Nathan, Krutmuang Patcharin
Department of Entomology and Plant Pathology, Faculty of Agriculture, Chiang Mai University, Chiang Mai, 50200, Thailand.
Department of Physiology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, 77, Tamil Nadu, India.
Heliyon. 2023 May 18;9(5):e16133. doi: 10.1016/j.heliyon.2023.e16133. eCollection 2023 May.
The present study aims to evaluate the different nanoparticles (Cu NPs, KI NPs, Ag NPs, Bd NPs, and Gv NPs) against 4th instar larvae as well as the microbial toxicity, phytotoxicity, and soil pH. Nanoparticles were tested at three concentrations (1000, 10000, and 100000 ppm) using two methods (food dip and larvae dip) against larvae. Results (from the larval dip method) showed that among the nanoparticles, the KI NPs caused 63%, 98%, and 98% mortality within 5 days in the treatment of 1000, 10000, and 100000 ppm, respectively. After 24 h post treatment, a 1000 ppm concentration showed 95%, 54%, and 94% germination rates in , , and , respectively. The phytotoxicity evaluation clearly showed that NPs did not affect the morphology of the corn plants after the treatment. The soil nutrient analysis results showed that no effect was observed in soil pH or soil nutrients compared to control treatments. The study clearly showed that nanoparticles are caused toxic effect against larvae.
本研究旨在评估不同的纳米颗粒（铜纳米颗粒、碘化钾纳米颗粒、银纳米颗粒、芽孢杆菌纳米颗粒和绿僵菌纳米颗粒）对四龄幼虫的影响，以及其微生物毒性、植物毒性和土壤pH值。使用两种方法（食物浸渍法和幼虫浸渍法），在三种浓度（1000、10000和100000 ppm）下对纳米颗粒进行针对幼虫的测试。结果（来自幼虫浸渍法）表明，在纳米颗粒中，碘化钾纳米颗粒在1000、10000和100000 ppm处理中，分别在5天内导致63%、98%和98%的死亡率。处理后24小时，1000 ppm浓度分别在玉米、大豆和小麦中显示出95%、54%和94%的发芽率。植物毒性评估清楚地表明，处理后纳米颗粒未影响玉米植株的形态。土壤养分分析结果表明，与对照处理相比，土壤pH值或土壤养分未观察到影响。该研究清楚地表明，纳米颗粒对幼虫产生了毒性作用。
