Issue 34, 2010

Artificial, switchable K+-gated ion channels based on flow-through titania-nanotube arrays

Abstract

In the present work, we demonstrated a novel type of artificial K+-gated ion channels based on titania nanotubes loaded with Au nanoparticles and G-rich DNA composite structure. K+ promoted conformational change of G-rich DNA from flexible chain to rigid quadruplex, which provided a blocking effect for the transport of anions such as Fe(CN)64 and other molecules through the channels in TiO2 nanotubes. This fabricated permselective membrane using K+ as a trigger may set light to the field of biosensing, drug-release, ion exchange membrane and so on.

Graphical abstract: Artificial, switchable K+-gated ion channels based on flow-through titania-nanotube arrays

Supplementary files

Article information

Article type
Communication
Submitted
09 Dec 2009
Accepted
17 Feb 2010
First published
15 Mar 2010

Phys. Chem. Chem. Phys., 2010,12, 9989-9992

Artificial, switchable K+-gated ion channels based on flow-through titania-nanotube arrays

B. Zhu, J. Li, Q. Chen, R. Cao, J. Li and D. Xu, Phys. Chem. Chem. Phys., 2010, 12, 9989 DOI: 10.1039/B925961A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements