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Malachite Green Derivative–Functionalized Single Nanochannel: Light‐and‐pH Dual‐Driven Ionic Gating
Author(s) -
Wen Liping,
Liu Qian,
Ma Jie,
Tian Ye,
Li Cuihong,
Bo Zhishan,
Jiang Lei
Publication year - 2012
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201202673
Subject(s) - malachite green , materials science , ionic bonding , malachite , nanotechnology , ion , optoelectronics , biosensor , derivative (finance) , photochemistry , chemistry , copper , adsorption , organic chemistry , economics , financial economics , metallurgy
A highly efficient and perfectly reversible ionic gate that can be activated by pH or UV light is demonstrated. Switching between the OFF state and the ON state is mainly dependent on the surface charge transition brought about by a malachite green derivative attached to the interior surface of an ion track‐etched conical nanochannel, which makes it suitable for confined spaces. Applications in electronics, actuators, and biosensors can be foreseen.