Cipri Andrea, Del Valle Manel
J Nanosci Nanotechnol. 2014 Sep;14(9):6692-8. doi: 10.1166/jnn.2014.9370.
A facile and quick synthesis of palladium decorated multi-walled carbon nanotubes is presented in this work. The developed protocol allowed a quasi-homogeneous distribution of the metal nanoparticles on the surface of the nanotubes, and a controlled size of the nanoparticles in a range between 3.5 and 4.5 nm. After the characterization of the hybrid nanocomposite a first attempt on a possible application was made. The preliminary test, an ink-like nanocomposite as a modifier on the surface of a carbon screen-printed electrode, was performed in order to detect L-Tyrosine. Preliminary results are promising. A catalytic effect on the oxidation peak of the L-Tyrosine was shown and furthermore a low limit of detection, 1.46 x 10(-10) M, was reached.
本文介绍了一种简便快速的钯修饰多壁碳纳米管的合成方法。所开发的方案使金属纳米颗粒在纳米管表面实现了准均匀分布，且纳米颗粒尺寸可控，在3.5至4.5纳米之间。对这种杂化纳米复合材料进行表征后，首次尝试了其可能的应用。进行了初步测试，即将一种墨水状纳米复合材料作为修饰剂涂覆在碳丝网印刷电极表面，以检测L-酪氨酸。初步结果很有前景。结果表明，该复合材料对L-酪氨酸的氧化峰具有催化作用，并且检测下限低至1.46×10⁻¹⁰ M。
