Department of Bioproducts and Biosystems, Aalto University, Espoo, FI-00076 Aalto, Finland.
Department of Bioproducts and Biosystems, Aalto University, Espoo, FI-00076 Aalto, Finland; VTT Technical Research Centre of Finland, VTT Biotechnology, FIN-02044 VTT, Finland.
J Colloid Interface Sci. 2018 Feb 15;512:318-324. doi: 10.1016/j.jcis.2017.10.034. Epub 2017 Oct 17.
Precise organization of nanomaterials with functional biomolecules play a key role in many natural materials. In this work, single-walled carbon nanotubes were functionalized by a self-assembling amphiphilic protein that enabled their dispersion into nanofibrillated cellulose matrix. The protein contained a hydrophobic patch and a glycosylated domain and due to its dual functionality, it was able to assemble at the interface of the carbon nanotubes and the nanofibrillated cellulose and thus enhance the interactions between them. The electrical conductivity of the nanocellulose/carbon nanotube composites was improved by approximately 5-fold when the protein modified nanotubes where applied. Also improvement of the mechanical properties due to the proteins was observed.
功能生物分子的纳米材料的精确组织在许多天然材料中起着关键作用。在这项工作中，通过自组装的两亲性蛋白质对单壁碳纳米管进行功能化，从而使它们分散在纳米原纤纤维素基质中。该蛋白质含有疏水斑和糖基化结构域，由于其双重功能，它能够在碳纳米管和纳米原纤纤维素的界面处组装，从而增强它们之间的相互作用。当应用蛋白质修饰的纳米管时，纳米纤维素/碳纳米管复合材料的电导率提高了约 5 倍。同时，也观察到由于蛋白质的存在而导致机械性能的提高。
