石墨烯量子点修饰的三联吡啶的化学感应特性和逻辑门行为。
Chemosensing properties and logic gate behaviors of graphene quantum dot-appended terpyridine.
机构信息
Beijing Key Laboratory of Energy Conversion and Storage Materials and College of Chemistry, Beijing Normal University, Beijing 100875, China.
Applied Optics Beijing Area Major Laboratory and Physics Department, Beijing Normal University, Beijing 100875, China.
出版信息
Mater Sci Eng C Mater Biol Appl. 2019 Jun;99:657-668. doi: 10.1016/j.msec.2019.02.014. Epub 2019 Feb 5.
Graphene quantum dot-covalently appended terpyridine, GQDs-tpy, was synthesized and characterized by X-ray photoelectron spectroscopy, FTIR spectroscopy and transmission electron microscopy. GQDs-tpy was found to act as multifunctional chemosensors: a highly selective colorimetric chemosensor for Fe as evidenced by an obvious color change from colorless to pink, and a typical fluorescence enhanced probe for Zn over 13 metal cations even in practical water samples. Moreover, two-input XOR, INHIBIT and IMPICATION logic gates as well as four-input OR and NOR logic gates were constructed according to the characteristic responses of GQDs-tpy to a sequence of cations.
石墨烯量子点共价连接三吡啶基，GQDs-tpy，通过 X 射线光电子能谱、傅里叶变换红外光谱和透射电子显微镜进行了合成和表征。GQDs-tpy 被发现具有多功能化学传感器的作用：作为一种高选择性比色化学传感器用于 Fe，其表现为从无色到粉红色的明显颜色变化，并且是一种典型的荧光增强探针，用于 Zn 相对于 13 种金属阳离子，即使在实际水样中也是如此。此外，根据 GQDs-tpy 对一系列阳离子的特征响应，构建了两个输入的异或、抑制和蕴涵逻辑门以及四个输入的或和非逻辑门。
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