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  • Malachite green derivative-functionalized single nanochannel: light-and-pH dual-driven ionic gating.

Malachite green derivative-functionalized single nanochannel: light-and-pH dual-driven ionic gating.

Advanced materials (Deerfield Beach, Fla.) (2012-09-29)
Liping Wen, Qian Liu, Jie Ma, Ye Tian, Cuihong Li, Zhishan Bo, Lei Jiang
ABSTRACT

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.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Malachite Green oxalate salt, Technical grade
Supelco
Malachite Green oxalate salt, VETRANAL®, analytical standard
Sigma-Aldrich
Malachite Green oxalate salt, for microscopy, crystalline, S. No.: 754
Sigma-Aldrich
Malachite Green oxalate salt, certified by the Biological Stain Commission
Sigma-Aldrich
Schaeffer and Fulton Spore Stain Solution A, for microscopy
Sigma-Aldrich
N-Hydroxysuccinimide, 98%
Sigma-Aldrich
N-Hydroxysuccinimide, purum, ≥97.0% (T)
Sigma-Aldrich
Malachite Green solution, for microscopy