Light and pH Cooperative Nanofluidic Diode Using a Spiropyran‐Functionalized Single Nanochannel

An artificial nanofluidic diode system is prepared, mimicking the light-gated and pH-tunable ion channels that play an important role in life sciences. When UV light is off, the nanochannel is in the closed state, analogous to a resistance. Under UV light irradiation and at pH 7, the current flows from the tip to the base, analogous to a diode; at pH 3, the situation (and the diode) is reversed.

[1]  Z. Siwy,et al.  Nanofluidic Bipolar Transistors , 2008 .

[2]  Z. Siwy,et al.  Poisson-Nernst-Planck model of ion current rectification through a nanofluidic diode. , 2007, Physical review. E, Statistical, nonlinear, and soft matter physics.

[3]  Reinhard Neumann,et al.  Single conical nanopores displaying pH-tunable rectifying characteristics. manipulating ionic transport with zwitterionic polymer brushes. , 2009, Journal of the American Chemical Society.

[4]  Xu Hou,et al.  Gating of single synthetic nanopores by proton-driven DNA molecular motors. , 2008, Journal of the American Chemical Society.

[5]  E. Bamberg,et al.  Channelrhodopsin-2, a directly light-gated cation-selective membrane channel , 2003, Proceedings of the National Academy of Sciences of the United States of America.

[6]  Frank Jahnke,et al.  Photon-Modulated Wettability Changes on Spiropyran-Coated Surfaces , 2002 .

[7]  Devens Gust,et al.  Control of nanopore wetting by a photochromic spiropyran: a light-controlled valve and electrical switch. , 2006, Nano letters.

[8]  Ying-Bing Jiang,et al.  Photoresponsive nanocomposite formed by self-assembly of an azobenzene-modified silane. , 2003, Angewandte Chemie.

[9]  Reinhard Neumann,et al.  Ionic transport through single solid-state nanopores controlled with thermally nanoactuated macromolecular gates. , 2009, Small.

[10]  Z. Siwy,et al.  Ion‐Current Rectification in Nanopores and Nanotubes with Broken Symmetry , 2006 .

[11]  Ben L Feringa,et al.  A Light-Actuated Nanovalve Derived from a Channel Protein , 2005, Science.

[12]  Reimar Spohr,et al.  Diode-like single-ion track membrane prepared by electro-stopping , 2001 .

[13]  Fred J Sigworth,et al.  Synthetic Protocells to Mimic and Test Cell Function , 2010, Advanced materials.

[14]  Robert S. Eisenberg,et al.  Tuning transport properties of nanofluidic devices with local charge inversion. , 2009, Journal of the American Chemical Society.

[15]  Lin Li,et al.  A pH‐Gating Ionic Transport Nanodevice: Asymmetric Chemical Modification of Single Nanochannels , 2010, Advanced materials.

[16]  Xu Hou,et al.  A biomimetic asymmetric responsive single nanochannel. , 2010, Journal of the American Chemical Society.

[17]  Xu Hou,et al.  Current rectification in temperature-responsive single nanopores. , 2010, Chemphyschem : a European journal of chemical physics and physical chemistry.

[18]  Xu Hou,et al.  Learning from nature: building bio-inspired smart nanochannels. , 2009, ACS nano.

[19]  Xiao-Hong Cao,et al.  Smart Homopolymer Modification to Single Glass Conical Nanopore Channels: Dual‐Stimuli‐Actuated Highly Efficient Ion Gating , 2011 .

[20]  Wei Guo,et al.  Biomimetic smart nanopores and nanochannels. , 2011, Chemical Society reviews.

[21]  I. Hamley,et al.  Biomimetic triblock copolymer membranes: from aqueous solutions to solid supports , 2011 .

[22]  Jin Zhai,et al.  Bioinspired Smart Gating of Nanochannels Toward Photoelectric‐Conversion Systems , 2010, Advanced materials.

[23]  Jin Zhai,et al.  Bio‐inspired Photoelectric Conversion Based on Smart‐Gating Nanochannels , 2010 .

[24]  Lei Jiang,et al.  Integrating Ionic Gate and Rectifier Within One Solid‐State Nanopore via Modification with Dual‐Responsive Copolymer Brushes , 2010 .

[25]  Xu Hou,et al.  Enantioselective recognition in biomimetic single artificial nanochannels. , 2011, Journal of the American Chemical Society.

[26]  Henry S White,et al.  Photon gated transport at the glass nanopore electrode. , 2006, Journal of the American Chemical Society.

[27]  Plamen Atanassov,et al.  Photoregulation of Mass Transport through a Photoresponsive Azobenzene-Modified Nanoporous Membrane , 2004 .

[28]  Wen-Jie Lan,et al.  Pressure-dependent ion current rectification in conical-shaped glass nanopores. , 2011, Journal of the American Chemical Society.

[29]  Wei Guo,et al.  A biomimetic zinc activated ion channel. , 2010, Chemical communications.

[30]  Xu Hou,et al.  A biomimetic potassium responsive nanochannel: G-quadruplex DNA conformational switching in a synthetic nanopore. , 2009, Journal of the American Chemical Society.

[31]  Long Chen,et al.  Electric energy generation in single track-etched nanopores , 2008 .

[32]  Zuzanna S Siwy,et al.  Biosensing with nanofluidic diodes. , 2009, Journal of the American Chemical Society.