Laboratory for Sustainable Technology, School of Chemical and Biomolecular Engineering, University of Sydney, NSW 2006, Australia.
Environ Sci Technol. 2012 Sep 4;46(17):9224-39. doi: 10.1021/es202995d. Epub 2012 Aug 14.
To exploit the promised benefits of engineered nanomaterials, it is necessary to improve our knowledge of their bioavailability and toxicity. The interactions between engineered nanomaterials and vascular plants are of particular concern, as plants closely interact with soil, water, and the atmosphere, and constitute one of the main routes of exposure for higher species, i.e. accumulation through the food chain. A review of the current literature shows contradictory evidence on the phytotoxicity of engineered nanomaterials. The mechanisms by which engineered nanomaterials penetrate plants are not well understood, and further research on their interactions with vascular plants is required to enable the field of phytotoxicology to keep pace with that of nanotechnology, the rapid evolution of which constantly produces new materials and applications that accelerate the environmental release of nanomaterials.
为了利用工程纳米材料所承诺的好处，有必要提高我们对其生物利用度和毒性的认识。工程纳米材料与维管束植物之间的相互作用尤其令人关注，因为植物与土壤、水和大气密切相互作用，是高等生物的主要暴露途径之一，即通过食物链积累。对当前文献的综述表明，工程纳米材料的植物毒性存在相互矛盾的证据。工程纳米材料穿透植物的机制尚不清楚，需要进一步研究它们与维管束植物的相互作用，以使植物毒理学领域跟上纳米技术的发展步伐，纳米技术的快速发展不断产生新材料和应用，加速了纳米材料向环境中的释放。
