Maximizing ion current rectification in a bipolar conical nanopore fluidic diode using optimum junction location

2016 ◽  
Vol 18 (40) ◽  
pp. 27958-27966 ◽  
Author(s):  
Kunwar Pal Singh
Keyword(s):  
Surface Charge ◽  
Ion Current ◽  
Optimum Location ◽  
Base Diameter ◽  
Ion Current Rectification ◽  
Charge Densities ◽  
Fluidic Diode ◽  
Current Rectification

The optimum location of junction z0m as a function of base diameter for different surface charge densities with data from a fitted equation.

Surface Charge Density Determination of Single Conical Nanopores Based on Normalized Ion Current Rectification

Langmuir ◽  
2011 ◽  
Vol 28 (2) ◽  
pp. 1588-1595 ◽  
Author(s):  
Juan Liu ◽  
Maksim Kvetny ◽  
Jingyu Feng ◽  
Dengchao Wang ◽  
Baohua Wu ◽  
...  
Keyword(s):  
Charge Density ◽  
Surface Charge ◽  
Surface Charge Density ◽  
Ion Current ◽  
Ion Current Rectification ◽  
Density Determination ◽  
Conical Nanopores ◽  
Current Rectification

scholarly journals Chemical Sensing and Chemoresponsive Pumping with Conical-Pore Polymeric Membranes

Nanomaterials ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 571 ◽  
Author(s):  
Stevie N. Bush ◽  
Thomas T. Volta ◽  
Charles R. Martin
Keyword(s):  
Surface Charge ◽  
Ionic Current ◽  
Chemical Species ◽  
Pore Wall ◽  
Ion Current ◽  
Wall Surface ◽  
Specific Chemical ◽  
Synthetic Membranes ◽  
Ion Current Rectification ◽  
Current Rectification

Synthetic membranes containing asymmetrically shaped pores have been shown to rectify the ionic current flowing through the membrane. Ion-current rectification means that such membranes produce nonlinear current–voltage curves analogous to those observed with solid-state diode rectifiers. In order to observe this ion-current rectification phenomenon, the asymmetrically shaped pores must have pore-wall surface charge. Pore-wall surface charge also allows for electroosmotic flow (EOF) to occur through the membrane. We have shown that, because ion-current is rectified, EOF is likewise rectified in such membranes. This means that flow through the membrane depends on the polarity of the voltage applied across the membrane, one polarity producing a higher, and the opposite producing a lower, flow rate. As is reviewed here, these ion-current and EOF rectification phenomena are being used to develop new sensing technologies. Results obtained from an ion-current-based sensor for hydrophobic cations are reviewed. In addition, ion-current and EOF rectification can be combined to make a new type of device—a chemoresponsive nanofluidic pump. This is a pump that either turns flow on or turns flow off, when a specific chemical species is detected. Results from a prototype Pb2+ chemoresponsive pump are also reviewed here.

Ion Current Rectification Behavior of Bioinspired Nanopores Having a pH-Tunable Zwitterionic Surface

2017 ◽  
Vol 89 (7) ◽  
pp. 3952-3958 ◽  
Author(s):  
Jyh-Ping Hsu ◽  
Hou-Hsueh Wu ◽  
Chih-Yuan Lin ◽  
Shiojenn Tseng
Keyword(s):  
Ion Current ◽  
Ion Current Rectification ◽  
Current Rectification

scholarly journals Accurate characterization of single track-etched, conical nanopores

2014 ◽  
Vol 16 (29) ◽  
pp. 15214-15223 ◽  
Author(s):  
Pavel Yu. Apel ◽  
Patricio Ramirez ◽  
Irina V. Blonskaya ◽  
Oleg L. Orelovitch ◽  
Bozena A. Sartowska
Keyword(s):  
Ion Current ◽  
Single Track ◽  
Ion Current Rectification ◽  
Conical Nanopores ◽  
Current Rectification

Deviation from cone geometry significantly influences the ion current rectification through track-etched nanopores with tip radii smaller than 10 nm.

Bioinspired Multivalent Ion Responsive Nanopore with Ultrahigh Ion Current Rectification

2019 ◽  
Vol 123 (22) ◽  
pp. 13687-13692 ◽  
Author(s):  
Zhong-Qiu Li ◽  
Yang Wang ◽  
Zeng-Qiang Wu ◽  
Ming-Yang Wu ◽  
Xing-Hua Xia
Keyword(s):  
Ion Current ◽  
Ion Current Rectification ◽  
Current Rectification

scholarly journals Mimicking how plants control CO2 influx: CO2 activation of ion current rectification in nanochannels

2015 ◽  
Vol 7 (9) ◽  
pp. e215-e215 ◽  
Author(s):  
Yanglei Xu ◽  
Minghui Zhang ◽  
Tong Tian ◽  
Ying Shang ◽  
Zheyi Meng ◽  
...  
Keyword(s):  
Ion Current ◽  
Co2 Activation ◽  
Ion Current Rectification ◽  
Current Rectification

Highly Selective Cerebral ATP Assay Based on Micrometer Scale Ion Current Rectification at Polyimidazolium-Modified Micropipettes

2017 ◽  
Vol 89 (12) ◽  
pp. 6794-6799 ◽  
Author(s):  
Kailin Zhang ◽  
Xiulan He ◽  
Yang Liu ◽  
Ping Yu ◽  
Junjie Fei ◽  
...  
Keyword(s):  
Ion Current ◽  
Ion Current Rectification ◽  
Atp Assay ◽  
Current Rectification ◽  
Micrometer Scale
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