Nanofluidic diode device based on branched alumina nano channel film

An alumina nano, fluid diode technology, used in chemical instruments and methods, laboratory containers, laboratory utensils, etc.

Active Publication Date: 2015-01-14
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it is still a challenge to use alumina nanochannel films as artificial nanochannels and develop nanofluidic diode devices based on branched alumina nanochannels.

Method used

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  • Nanofluidic diode device based on branched alumina nano channel film
  • Nanofluidic diode device based on branched alumina nano channel film
  • Nanofluidic diode device based on branched alumina nano channel film

Examples

Experimental program
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Effect test

Embodiment 1

[0053] This embodiment is a nanofluid diode device based on a bifurcated aluminum oxide nanochannel film, and the bifurcated aluminum oxide nanochannel film is located at a position connected in the middle of the double electrochemical cell tank to isolate the double electrochemical cell tank , wherein, the thickness of the two-branched aluminum oxide nanochannel film is 50 μm; the diameter of the nanopores in the main part of the two-branched aluminum oxide nanochannel film is 80 ± 3nm; the two-branched aluminum oxide nanochannel film The diameter of the nanopore of each branch in the branch part is 59 ± 3nm, and the length of each branch is: 25 μ m; the first electrochemical electrode and the second electrochemical electrode are all selected Ag / AgCl electrode, the first electrolyte solution tank and the electrolyte solution in the second electrolyte solution tank are all KCl solutions, and the concentration is 0.1mmol / L, and the pH is 9.5; the two-branch aluminum oxide nanoch...

Embodiment 2

[0056] This embodiment is a nanofluidic diode device based on a three-branch aluminum oxide nanochannel film, and the three-branch aluminum oxide nanochannel film is located at a position connected in the middle of the double electrochemical cell tank to isolate the double electrochemical cell tank , wherein, the thickness of the three-branch aluminum oxide nanochannel film is 50 μm; the diameter of the nanopore in the main part of the three-branch aluminum oxide nanochannel film is 80 ± 3nm; the three-branch aluminum oxide nanochannel film The diameter of the nanopore of each branch in the branch part is 45 ± 3nm, and the length of each branch is: 25 μ m; the first electrochemical electrode and the second electrochemical electrode are all selected Ag / AgCl electrode, the first electrolyte solution tank The electrolyte solutions in the electrolyte solution tank and the second electrolyte solution tank are all KCl solutions, and the concentration is 0.1mmol / L, and the pH is 9.5; ...

Embodiment 3

[0059] This embodiment is a nanofluidic diode device based on a four-branch aluminum oxide nanochannel film, and the four-branch aluminum oxide nanochannel film is located at a position connected in the middle of a double electrochemical cell tank to isolate the double electrochemical cell tank , wherein, the thickness of the four-branched aluminum oxide nanochannel film is 50 μm; the diameter of the nanopore in the main part of the four-branched aluminum oxide nanochannel film is 80 ± 3nm; the four-branched aluminum oxide nanochannel film The diameter of the nanopore of each branch in the branch part is 30 ± 3nm, and the length of each branch is: 25 μ m; the first electrochemical electrode and the second electrochemical electrode are all selected Ag / AgCl electrode, the first electrolyte solution tank and the electrolyte solution in the second electrolyte solution tank are both KCl solutions, and the concentration is 0.1mmol / L, and the pH is 9.5; the four-branch aluminum oxide ...

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Abstract

The present invention discloses a nanofluidic diode device based on branched alumina nano channel film, and the nanofluidic diode device comprises: branched alumina nano channel film and a cell tank with dual electrochemical cells which are communicated with each other through the central part, wherein the branched alumina nano channel film is positioned at the position of the electrochemical cells communicating with each other to separate the cell tank with dual electrochemical cells. According to the nanofluidic diode device based on branched alumina nano channel film of the present invention, ion rectifying properties, ion selectivity and gating properties similar to a diode can be achieved.

Description

technical field [0001] The invention relates to the technical field of nanofluid diode devices, in particular to a nanofluid diode device based on a branched aluminum oxide nanochannel film. Background technique [0002] Cells in living organisms regulate the entry and exit of corresponding substances through the opening and closing of membrane protein ion channels, thereby maintaining the dynamic balance and metabolism of cells. Recently, artificial nanochannels exhibit ion rectification properties similar to those of membrane protein ion channels, that is, the artificial nanochannels allow the passing ions to flow preferentially in one direction. Artificial nanochannels with the ion rectification properties are like micro A "diode" in an electronic integrated circuit. Nanofluidic diode devices based on artificial nanochannels have potential applications in biosensing, drug delivery and release, and energy conversion. [0003] The artificial nanochannel constituting the n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01L3/00B01J19/00
Inventor 范霞孔妍翟锦江雷
Owner BEIHANG UNIV
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