Interaction of tannic acid with carbon nanotubes: enhancement of dispersibility and biocompatibility
Interaction of tannic acid with carbon nanotubes: enhancement of dispersibility and biocompatibility
复制标题
单宁酸与碳纳米管的相互作用：增强分散性和生物相容性
DOI：
10.1039/c4tx00066h
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发表时间：
2015-01-01
影响因子：
2.1
通讯作者：
Wei, Yen
中科院分区：
文献类型：
--
作者：
Zhang, Xiaoyong;Liu, Meiying;Wei, Yen
人造纳米材料与环境和生物系统的相互作用长期以来一直是一个备受关注的研究课题。在本研究中，研究了一种通用的环境有机物质（单宁酸（TA））在碳纳米管（CNTs）上的吸附。还评估了碳纳米管性质和pH值对碳纳米管对TA吸附能力的影响。我们的研究结果表明，CNTs的吸附能力与其比表面积呈正相关。此外，TA可以有效增强CNTs的水分散性，降低其细胞毒性。我们的研究结果表明，TA可以影响制备的纳米材料的环境行为和生物反应，提醒我们在评估纳米材料的环境影响时应更多地关注其协同毒性。
The interaction of manufactured nanomaterials with environmental and biological systems has been a subject of great research interest for a long time. In the present study, adsorption of a universal environmental organic material (named tannic acid (TA)) on carbon nanotubes (CNTs) was investigated. The influence of CNT properties and pH values on the sorption capacity of CNTs for TA was also evaluated. Our results demonstrated that the sorption capacity of CNTs was positively correlated with their specific surface areas. Furthermore, TA could effectively enhance the water dispersibility of CNTs and reduce their cytotoxicity. Our results implied that TA could influence the environmental behavior and biological responses of the manufactured nanomaterials, reminding us that much more attention should be paid to the synergistic toxicity of nanomaterials when we evaluate their environmental impacts.