Rezaei Cherati Sajedeh, Anas Muhammad, Liu Shijie, Shanmugam Sudha, Pandey Kamal, Angtuaco Steven, Shelton Randal, Khalfaoui Aida N, Alena Savenka V, Porter Erin, Fite Todd, Cao Huaixuan, Green Micah J, Basnakian Alexei G, Khodakovskaya Mariya V
Department of Biology, University of Arkansas at Little Rock, Little Rock, Arkansas 72204, United States.
Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843, United States.
ACS Nano. 2022 Aug 23;16(8):12061-12072. doi: 10.1021/acsnano.2c02201. Epub 2022 Jul 22.
Carbon-based nanomaterials (CBNs) are often used for potential agricultural applications. Since CBNs applied to plants can easily enter plant organs and reach the human diet, the consequences of the introduction of CBNs into the food chain need to be investigated. We created a platform for a comprehensive investigation of the possible health risks of multiwalled carbon nanotubes (CNTs) accumulated in the organs of exposed tomato plants. Quantification and visualization of CNTs absorbed by plant organs were determined by microwave-induced heating (MIH) and radio frequency (RF) heating methods. Feeding mice with CNT-contaminated tomatoes showed an absence of toxicity for all assessed animal organs. The amount of CNTs accumulated inside the organs of mice fed with CNT-containing fruits was assessed by an RF heating technique and was found to be negligible. Our work provides the experimental evidence that the amount of CNTs accumulated in plant organs as a result of nanofertilization is not sufficient to induce toxicity in mice.
碳基纳米材料（CBNs）常被用于潜在的农业应用。由于应用于植物的CBNs能够轻易进入植物器官并进入人类饮食，因此需要研究将CBNs引入食物链的后果。我们创建了一个平台，用于全面调查暴露的番茄植株器官中积累的多壁碳纳米管（CNTs）可能存在的健康风险。通过微波诱导加热（MIH）和射频（RF）加热方法对植物器官吸收的CNTs进行定量和可视化。用受CNT污染的番茄喂养小鼠，结果显示所有评估的动物器官均无毒性。通过射频加热技术评估了喂食含CNT果实的小鼠器官内积累的CNT数量，发现其可忽略不计。我们的工作提供了实验证据，即纳米施肥导致植物器官中积累的CNT数量不足以对小鼠产生毒性。
