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Liping Wen, Qian Liu, Jie Ma, Ye Tian, Cuihong Li, Zhishan Bo and Lei Jiang Malachite Green Derivative–Functionalized Single Nanochannel: Light-and-pH Dual-Driven Ionic Gating (Adv. Mater. 46/2012) Advanced Materials 24

Version of Record online: 29 NOV 2012 | DOI: 10.1002/adma.201290291

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An efficient and reversible ionic gating that can be activated by pH and light is demonstrated on page 6193 by Lei Jiang, Zhishan Bo, and co-workers, by modifying a malachite green derivative on the interior surface of an ion track-etched conical nanochannel. The switches between the OFF-state and the ON-state are dependent on the surface charge transition caused by the malachite green derivative, making it suitable for confined spaces. Such a dual-driven ionic gating could find applications in electronics, actuators, and biosensors.

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