Department of Plant and Soil Sciences, University of Kentucky, Lexington, Kentucky 40546, USA.
Nano Lett. 2010 Jul 14;10(7):2296-302. doi: 10.1021/nl903518f.
While few publications have documented the uptake of nanoparticles in plants, this is the first study describing uptake and distribution of the ultrasmall anatase TiO(2) in the plant model system Arabidopsis. We modified the nanoparticle surface with Alizarin red S and sucrose and demonstrated that nanoconjugates traversed cell walls, entered into plant cells, and accumulated in specific subcellular locations. Optical and X-ray fluorescence microscopy coregistered the nanoconjugates in cell vacuoles and nuclei.
虽然很少有出版物记录纳米颗粒在植物中的吸收情况,但这是首次描述超小锐钛矿 TiO(2) 在植物模型系统拟南芥中的吸收和分布的研究。我们用茜素红 S 和蔗糖修饰了纳米颗粒表面,并证明纳米复合物穿过细胞壁,进入植物细胞,并在特定的亚细胞位置积累。光学和 X 射线荧光显微镜将纳米复合物在细胞液泡和细胞核中进行了共定位。