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首页> 外文期刊>Advanced Functional Materials >Enzyme-mediated Deposition Of A Tio_2 Coating Onto Biofunctionalized Ws2 Chalcogenide Nanotubes
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Enzyme-mediated Deposition Of A Tio_2 Coating Onto Biofunctionalized Ws2 Chalcogenide Nanotubes

机译：酶介导的生物功能化的Ws2硫族化物纳米管上的Tio_2涂层的沉积。

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摘要

A chemically specific and facile method for the biofunctionalization of WS_2 nanotubes (NT-WS_2) is reported. The covalent modification strategy is based on the affinity of the nitrilotriacetic acid (NTA) side chain, which serves as a ligand for the surface binding to NT-WS_2 and simultaneously as an anchor group for the binding of His-tagged proteins to the polymer backbone. The polymer functionalized WS_2 nanotubes can be solubilized either in water or organic solvents; they are stable for at least one week. The probes were characterized by FT-IR and UV-vis spectroscopy. The immobilization of silicatein, a hydrolytic protein encountered in marine sponges, was visualized by scanning force microscopy (SFM) and confocal laser scanning microscopy (CLSM). The formation of the biotitania coating mediated by the immobilized silicatein onto the surface was characterized by scanning electron microscopy (SEM), and transmission electron microscopy (TEM).
机译：报道了一种用于WS_2纳米管（NT-WS_2）生物功能化的化学特异性且简便的方法。共价修饰策略基于次氮基三乙酸（NTA）侧链的亲和力，它作为与NT-WS_2表面结合的配体，同时还作为His-tagged蛋白与聚合物主链结合的锚定基团。可以将聚合物官能化的WS_2纳米管溶于水或有机溶剂中。他们至少稳定了一个星期。通过FT-IR和UV-可见光谱对探针进行表征。通过扫描力显微镜（SFM）和共聚焦激光扫描显微镜（CLSM）可以观察到海洋海绵中遇到的水解蛋白-硅酸盐的固定化。通过扫描电子显微镜（SEM）和透射电子显微镜（TEM）表征了由固定的硅酸盐在表面上介导的生物二氧化钛涂层的形成。

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