CN108982612A - Integrative electrochemical electrode system based on nanochannel arrays surface spraying plating gold - Google Patents
Integrative electrochemical electrode system based on nanochannel arrays surface spraying plating gold Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/28—Electrolytic cell components
- G01N27/30—Electrodes, e.g. test electrodes; Half-cells
Abstract
The invention discloses a kind of integration type electrochemical electrode systems based on nanochannel arrays surface spraying plating gold.Using anode oxidation aluminium nanochannel arrays as carrier, pass through ion sputtering process spraying plating layer gold on its two sides；Then electrochemical workstation system is connected to by conducting wire, the layer gold of AAO one side is as working electrode, and the layer gold of another side is as reference electrode and to electrode, to construct electrode system.Electrode system of the invention is integrated with nanochannel and electrode, has Conventional electrochemical system function, and its is simple for production, small in size and easy to carry, easy to operate, has innovative and application prospect in micro-nano analysis and context of detection.
Description
Technical field
The invention belongs to a kind of electrochemical fields based on nanochannel, and in particular to one kind is based on nanochannel arrays table
The integrative electrochemical electrode system of face spraying plating gold.
Background technique
Nanochannel is structurally ordered, has moderately good physics and chemical property and has been commercialized, these features make it
There are huge potentiality in overdelicate single molecule analysis detection field, the detection technique based on nanochannel is also increasing.
Currently, can be divided mainly into electrochemical detection method and optical detecting method using the method that nanochannel is detected.Wherein, electric
Chemical detection method is easy to operate, high sensitivity, the favor by numerous researchers.And it is received with electrochemical test method detection
The cross-film electric signal in rice grain pattern road is a kind of common analysis means.
Electrode is essential a part in electro-chemical test.Using electrochemical workstation carry out nanochannel across
When film electric signal is tested, usually there are three types of test macros: bipolar electrode test macro, three electrode test systems and four electrode test systems
System.Conventional three electrodes and four electrode test systems often contain traditional reference electrode and to electrodes, in order to make these electrodes
It can not sufficiently can be omitted with electrolyte contacts, electrolytic cell；And conventional bipolar electrode test macro needs respectively to put two electrodes
The electrolytic cell for entering nanochannel both ends carries out electrical signal detection.In brief, conventional bipolar electrode, three electrodes and four electrode tests
In system, electrode is separated with nanochannel, and contains electrolytic cell；The two features cause the whole of conventional electrodes test macro to be surveyed
It is big to try environment volume, is unfavorable for the detection of analytes in low concentration.Therefore, the electrode system for seeking to integrate with nanochannel has
Significant innovative and application prospect.
Summary of the invention
The purpose of the present invention is the shortcoming for existing electrode system, by nanochannel and electrode fully-integratedization,
Reduce the volume of entire electrode system, development can be used for the model electrochemical system of micro-nano analysis, improve electrochemical analysis and inspection
The simplicity and sensitivity of survey.
To achieve the above object, the technical solution adopted in the present invention is as follows:
The integrative electrochemical electrode system is working electrode, reference electrode and the three electrode test systems to electrode
Or bipolar electrode test macro, at least described working electrode are AAO-Au electrode slice, AAO-Au electrode slice is by anodised aluminium
The layer gold of nanochannel arrays (AAO) (sheet material) and spraying plating in anodised aluminium nanochannel arrays surface is constituted.
The AAO-Au electrode slice is encapsulated by insulating layer and connects electrochemical workstation through conducting wire.
The AAO-Au electrode slice that the present invention makes can be in conjunction with electrochemical workstation for electrochemical analysis and detection.
It is sprayed with layer gold on two surface of lamella of anodised aluminium nanochannel arrays, layer gold completely covers surface.It is formed
The sandwich structure of sandwiched anodised aluminium nanochannel arrays lamella between two layers of layer gold.
The AAO-Au electrode slice uses ion sputtering process, anodised aluminium nanochannel arrays (AAO) with certain angle
It is intracavitary that degree is placed in ion sputtering, by adjusting sputtering current and time, respectively in anodised aluminium nanochannel arrays (AAO) two
Spraying plating layer gold in side surface obtains AAO-Au electrode slice.
Thus AAO-Au electrode slice that the present invention is prepared is found to have in the experiment of integrative electrochemical electrode to be received
Rice enhancement effect, improves the sensitivity of electrochemical analysis and test.
When ion sputtering, the pedestal of plane and ion sputtering instrument cavity where anodised aluminium nanochannel arrays (AAO)
Angular range between plane is 5 °~80 °, and charging and discharging currents are not less than 3 μ A, and the spraying plating time is no less than 10s.
The anodised aluminium nanochannel arrays are bilateral type, include any aperture.
The layer gold of AAO-Au electrode slice both side surface is separately connected using two conducting wires, using the film with viscosity and waterproof
Shape material is provided with engraved structure as insulating layer on insulating layer, conductor part that insulating layer cladding is immersed in electrolyte solution,
The connection contact portion and the AAO-Au electrode slice both side surface in addition to engraved structure of conducting wire and AAO-Au electrode slice, AAO-
Au electrode slice only connects contact at engraved structure with electrolyte solution, and AAO-Au electrode slice both side surface is provided with insulation
Layer, keeps the connection contact portion between electrolyte solution liquid level conductor part below and conducting wire and AAO-Au electrode slice not sudden and violent
It is exposed to electrolyte solution.
AAO-Au electrode slice both side surface is used as one side surface of working electrode or AAO-Au electrode slice at engraved structure
Working electrode is used as at engraved structure, another side surface is at engraved structure as reference electrode and to electrode.
The conducting wire includes but is not limited to spun gold, copper wire, platinum filament and aluminium foil.
The film material for having viscosity and waterproof includes but is not limited to dimethyl silicone polymer (PDMS) film and glue
Band.
Electrochemical analysis according to the present invention and test method include but is not limited to cyclic voltammetry, chronoamperometry and
Electrochemical impedance spectroscopy etc..
AAO-Au electrode slice is immersed in conventional electrolyte solution in present invention specific implementation, constructs two-electrode system, it can
Carry out conventional electro-chemical test (such as cyclic voltammetry, chronoamperometry, electrochemical impedance spectroscopy).
The AAO-Au electrode chip size of specific implementation is limited in Nano grade.
In electrode system of the present invention, the layer gold of AAO one side is as working electrode, and the layer gold of another side is as reference
Electrode and to electrode, to construct two-electrode system.The electrode system is suitable for conventional electrolyte solution, can be used for conventional electricity
Test chemical (such as cyclic voltammetry, Electrode with Electrochemical Impedance Spectroscopy, timing Amperometric).
The method have the benefit that:
1 compares conventional electrodes system, this electrode system metal usage amount is small, preparation is easy, small in size, in cost and use
Aspect has significant advantage.
2 electrode systems of the present invention are suitable for Conventional electrochemical and analyze and measuring technology, in conjunction with nanochannel advantage,
Compared to conventional large volume electrode system, there is nanometer enhancement effect, be conducive to the sensitivity for improving electrochemical analysis and test, very
To the analysis and detection for realizing individual molecule.
3 electrode systems of the present invention are expected to be further developed into as micro-nano detection system.
For synthesis, electrode system of the present invention is integrated with nanochannel and electrode, has Conventional electrochemical system function, and
Its is simple for production, small in size and easy to carry, easy to operate, before micro-nano analysis and context of detection have innovative and application
Scape.
Detailed description of the invention
Fig. 1 is shown as the integration type electrochemical electrode system based on nanochannel arrays surface spraying plating gold in the present invention
The component part figure of system.
Fig. 2 is shown as the integration type electrochemical electrode system based on nanochannel arrays surface spraying plating gold in the present invention
The application method figure of system.
Fig. 3 is shown as the scanning electron microscopy on surface of the AAO-Au electrode slice in the present invention before and after two-sided spraying plating layer gold
Mirror figure.
The scanning electron that Fig. 4 is shown as longitudinal section of the AAO-Au electrode slice in the present invention before and after two-sided spraying plating layer gold is aobvious
Micro mirror figure.
Fig. 5 is shown as the integration type electrochemical electrode system single side in the present invention as in three electrode test systems
Cyclic voltammetric (CV) curve graph tested in potassium ferricyanide solution when working electrode use.
The integration type electrochemical electrode system and rodlike commercialization gold electrode that Fig. 6 is shown as in embodiment 1 exist respectively
Two-electrode system is constructed in 0.1M phosphate buffer solution and tests resulting electrochemical profiles figure, wherein figure A is CV curve graph, figure
B is electrochemical impedance spectroscopy (EIS) curve graph, and figure C is timing ampere (i-t) curve graph.Dashed curve in figure is AAO-Au electricity
The test result of electrode systems, block curve are the test result for being commercialized gold electrode.
The integration type electrochemical electrode system and the rodlike gold electrode of commercialization that Fig. 7 is shown as in embodiment 2 exist respectively
Building two-electrode system test in the solution (1mM potassium ferrocyanide/potassium ferricyanide solution) of the reduction electricity pair containing a pair of of inorganic oxide
Resulting electrochemical profiles figure, wherein figure A is CV curve graph, figure B is EIS curve graph, and figure C is i-t curve graph.Dotted line in figure
Curve is the test result of AAO-Au electrode system, and block curve is the test result for being commercialized gold electrode.
The integration type electrochemical electrode system and the rodlike gold electrode of commercialization that Fig. 8 is shown as in embodiment 3 exist respectively
The resulting electrochemical profiles figure of a kind of middle building two-electrode system test of organic solution (5mM 1,4-benzoquinone solution), wherein figure A is
CV curve graph, figure B are EIS curve graph, and figure C is i-t curve graph.Dashed curve in figure is the test knot of AAO-Au electrode system
Fruit, block curve are the test result for being commercialized gold electrode.
Fig. 9 is shown as the integration type electrochemical electrode system in embodiment 4 before and after BSA closing respectively at the Asia 1mM
Two-electrode system is constructed in the potassium ferricyanide/potassium ferricyanide solution and tests resulting electrochemical profiles figure, wherein figure A is CV curve
Figure, figure B are EIS curve graph, and figure C is i-t curve graph.Solid line song in figure is the electrode test curve before BSA processing, and dotted line is bent
Line is BSA treated electrode test curve.
The rodlike gold electrode of the commercialization that Figure 10 is shown as in embodiment 4 is before and after BSA closing respectively at 1mM ferrocyanide
Two-electrode system is constructed in potassium/potassium ferricyanide solution and tests resulting electrochemical profiles figure, wherein figure A is CV curve graph, figure B is
EIS curve graph, figure C are i-t curve graph.Solid line song in figure is the electrode test curve before BSA processing, dashed curve BSA
Treated electrode test curve.
In figure: 1 represents anodised aluminium nanochannel arrays, and 2 represent layer gold, and 3 represent conducting wire, and 4 represent insulating layer.
Specific embodiment
Below by way of specific specific example combination attached drawing, embodiments of the present invention will be described, but may be noted that
Implementation of the invention embodiment not limited to the following.
The embodiment of the present invention is as follows:
(1) production of integrative electrochemical electrode system:
As shown in Figure 1, in the formation of sheet material both side surface spraying plating layer gold 2 of anodised aluminium nanochannel arrays (AAO) 1
AAO-Au electrode slice, AAO-Au electrode slice both ends are connected by the encapsulation of insulating layer 4 and with conducting wire 3, and conducting wire 3 connects electrochemical operation
It stands.Two conducting wires 3 are separately connected AAO-Au electrode slice both ends, and insulating layer is the film material with viscosity and waterproof, embodiment
In using spun gold as conducting wire, using adhesive tape as insulating layer.
The novel collection based on nanochannel arrays surface spraying plating gold in the present invention is discussed in detail taking the embodiment as an example below
The production method and characterization result of accepted way of doing sth electrochemical electrode system.
Firstly, the AAO that aperture is 80-100nm is fixed on the glass sheet, it is put into the cavity of ion sputtering instrument, sheet glass
It is in 20 ° of angles with base plane.Charging and discharging currents in metallization process are 15 μ A, and the spraying plating time is 400s.By two sides of AAO
After identical parameter spraying plating layer gold, the AAO-Au electrode slice of two-sided spraying plating layer gold is removed.
Electron microscope and Elemental redistribution table are scanned to the AAO before spraying plating and the AAO-Au electrode slice after spraying plating layer gold
Sign.It, can be with as it can be seen that the scanning electron microscope diagram on surface of the comparison AAO-Au electrode slice before and after two-sided spraying plating layer gold in Fig. 3
It was found that there is layer gold compared to the surface AAO in the AAO-Au electrode slice after metal spraying；As it can be seen that comparison AAO-Au electrode slice exists in Fig. 4
The scanning electron microscope diagram of longitudinal section before and after two-sided spraying plating layer gold, it can be found that AAO-Au electrode slice after metal spraying compared to
The longitudinal section AAO does not have significant difference.According to Elemental redistribution in table characterize as a result, it can be found that AAO-Au electrode after metal spraying
Piece increases compared to AAO electric conductivity, and surface gold content rises to 6.71% from 0%.
Then, it is separately connected two sides of AAO-Au electrode slice using two spun golds, coats lid spun gold lower end with adhesive tape
And the contact portion between spun gold and electrode slice, adhesive tape are sheet, tape surface opens up circular hole, and makes AAO-Au electrode slice simultaneously
Gold plated Layer exposure at the circular hole of both side surface is used as electrode.Adhesive tape has viscosity, and spun gold is sealed, does not contact spun gold molten
Liquid.
Spraying plating layer gold is distinguished in two sides of AAO, i.e. the two sides AAO are integrated with two gold electrodes, AAO and the common shape of Au respectively
At AAO-Au electrode slice.The encapsulation of integrated AAO-Au electrode slice Yu spun gold and adhesive tape efficiently reduces entire electrode system
Volume, a kind of this integration type electrochemical electrode system based on nanochannel arrays surface spraying plating gold meet it is integrated,
Portability requirements have innovative and application prospect.
Using the layer gold of AAO-Au electrode slice one side as working electrode, using standard calomel electrode as reference electrode, with carbon
Stick is electrochemical Characterization to be carried out in three electrode test systems with cyclic voltammetric (CV) method, electrolyte solution is iron content to electrode
The phosphate buffer solution of potassium cyanide, characterization result are as shown in Figure 5.As can be known from Fig. 5, the CV curve measured can completely be shown
A pair of of redox character peak of the potassium ferricyanide out, and peak voltage difference is less than 400mV, illustrates that AAO-Au electrode slice electric conductivity is good
It is good, it can be used as the use of routine work electrode.
(2) use of integrative electrochemical electrode system:
As shown in Fig. 2, the substance in beaker represents conventional electrolyte solution.By the AAO-Au electrode slice leaching in electrode system
Enter electrolyte solution, the layer gold of AAO-Au electrode slice one side is as working electrode, and the layer gold of another side is as reference electricity
Pole and to electrode, constitutes two-electrode system.AAO-Au electrode slice, conducting wire, electrolyte solution and electrochemical workstation are in electrochemistry
Access is constituted when test, carries out the measurement of cross-film electric signal, test method includes but is not limited to cyclic voltammetric (CV) method, electrochemistry
Impedance spectrum (EIS) method, timing ampere (i-t) method.
Embodiment 1:
In this instance, the conventional electrolyte solution used is the phosphate buffer solution of 0.1M.It will be in novel electrode system
AAO-Au electrode slice immerse electrolyte solution, with a certain conducting wire in the working electrode connection electrode of electrochemical workstation, ginseng
Than electrode and to another conducting wire in electrode connection electrode, two-electrode system is constituted, carries out electro-chemical test, test result is as schemed
6 dashed curve.
Two of purchase rodlike commercialization gold electrodes are immersed into the electrolyte solution, rodlike commercialization gold electrode derives from day
Jin Yingke joint Science and Technology Ltd., the working electrode of a connection electrochemical workstation, another connection electrochemical workstation
Reference electrode and to electrode, constitute two-electrode system, carry out electro-chemical test identical with AAO-Au electrode, test result is such as
The block curve of Fig. 6.
What Fig. 6 A was represented is CV curve, and specific measurement parameter: scanning voltage is -0.4V~0.4V, sweep speed 0.1V/
s；What Fig. 6 B was represented is EIS curve, specific measurement parameter: frequency range is 1~10^5Hz, initial voltage 0V, and amplitude is
0.01V；What Fig. 6 C was represented is i-t curve, and specific measurement parameter: initial voltage is -0.2V, testing time 600s.
It is consistent to can be seen that CV with EIS curvilinear trend from Fig. 6 A, B, it is similar to illustrate that two kinds of electrodes have in the solution
Charge transport capability.The trend that can be seen that two curves from Fig. 6 C is identical.The test result of two kinds of electrodes is very much like, says
Bright AAO-Au electrode system can successfully carry out the survey of electrochemical signals in 0.1M phosphate buffer solution as two-electrode system
Amount, and there are the properties such as the charge transport capability similar with rodlike commercialization gold electrode, show that electro-chemical systems of the present invention are applicable in
In the electrochemical system using conventional buffers.
Embodiment 2:
In this instance, the conventional electrolyte solution used is that (a pair of of inorganic oxide is also for 1mM potassium ferrocyanide/potassium ferricyanide
Former electricity to) solution.The mode such as embodiment 1 of electrochemical signals measurement, Electrochemical results are as shown in fig. 7, dotted line in figure
Curve is the test result of AAO-Au electrode system, and block curve is the test result for being commercialized gold electrode.
What Fig. 7 A was represented is CV curve, and what Fig. 7 B was represented is EIS curve, and what Fig. 7 C was represented is i-t curve, specific measurement ginseng
Number is same as Example 1.As can be seen that AAO-Au electrode system can be characterized successfully with commercialization gold electrode from Fig. 7 A
The characteristic peak of this redox couple out, and the corresponding spike potential of characteristic peak is no more than 5mV, illustrates that two kinds of electrodes can be successfully right
Inorganic oxide reduction electricity is to characterizing.
It is largely overlapped from Fig. 7 B with the curve that can be seen that two kinds of electrodes in Fig. 7 C or trend is consistent, further illustrated
The similitude of two kinds of electrodes and the practicability of AAO-Au electrode system, also indicate that electro-chemical systems of the present invention are suitable for using nothing
The electrochemical system of machine redox object.
Embodiment 3:
In this instance, the conventional electrolyte solution used is 5mM 1,4-benzoquinone (classical oxidation-reduction quality organic matter) solution.
The mode such as embodiment 1 of electrochemical signals measurement, Electrochemical results are as shown in Figure 8.
Dashed curve in figure is the test result of AAO-Au electrode system, and block curve is the test for being commercialized gold electrode
As a result.What Fig. 8 A was represented is CV curve, and specific measurement parameter: scanning voltage is -1.5V~1.5V, sweep speed 0.1V/s；
What Fig. 8 B was represented is EIS curve, and specific measurement parameter is same as Example 1；What Fig. 8 C was represented is i-t curve, specific measurement ginseng
Number: initial voltage is -0.8V, testing time 600s.As can be seen that AAO-Au electrode system and rodlike commercialization from Fig. 8 A
Gold electrode successfully symbolizes the characteristic peak of 1,4-benzoquinone, though the two difference on the corresponding peak voltage of characteristic peak, characterization
Characteristic peak number out is consistent and peak shape is complete.EIS curve radian both in Fig. 8 B is similar, shows the surface feelings of two kinds of electrodes
Condition is similar；And the i-t curvilinear trend both in Fig. 8 C is identical, further proves the similitude of two kinds of electrodes.
By the comparison of Fig. 8 it is found that AAO-Au electrode system and rodlike commercialization gold electrode can succeed in 1,4-benzoquinone solution
The measurement of electric signal and the characterization of electrode surface situation are carried out, shows that electro-chemical systems of the present invention are suitable for using organic oxidation also
The electrochemical system of the original.
Embodiment 4:
By in novel electrode system AAO-Au electrode slice and two rodlike commercialization gold electrodes respectively in 4%BSA solution
It is middle to impregnate one hour, after taking-up with milli-Q water three times, then dry up electrode surface.AAO-Au electrode slice after will be processed
It is measured with two commercialization gold electrodes respectively in 1mM potassium ferrocyanide/potassium ferricyanide solution, measurement method and specific survey
Measure parameter such as embodiment 2.
AAO-Au electrode system is in BSA electric signal comparison diagram before and after the processing as shown in figure 9, commercialization gold electrode is in BSA
Electric signal comparison diagram before and after the processing is as shown in Figure 10, and Fig. 9, the block curve in 10 represent the electrode test before BSA processing
Curve, dashed curve represent BSA treated electrode test curve.
Schemed from the two CV of Fig. 9 A, 10A as can be seen that two kinds of electrodes are in BSA treated characteristic peak before relative to processing
Current value is declined, and peak voltage difference slightly increases, and illustrates the charge transport capability decline of electrode.From Fig. 9 B, 10B this two
A EIS figure as can be seen that BSA treated that two kinds of electrodes are significantly increased relative to electric charge transfer steric hindrance before handling, explanation
The charge transport capability of electrode surface declines, consistent with CV figure result.From the two i-t of Fig. 9 C, 10C figure as can be seen that from BSA
The i-t curve for managing two kinds of electrodes of front and back is also varied.
By the comparison of Fig. 9, Figure 10, it is found that AAO-Au electrode system and rodlike commercialization gold electrode are in BSA, treated becomes
Change trend is identical, shows that the electrode surface of electro-chemical systems of the present invention has the suction to protein similar with commercialization gold electrode
Attached ability, suitable for the electrochemical system that need to be surface modified.
These results suggest that integration type electricity of one of the present invention based on nanochannel arrays surface spraying plating gold
Chemical electrode system can apply in conventional electrolyte solution, carry out the measurement of electrochemical signals, and chemical property can
It matches in excellence or beauty in common rodlike commercialization gold electrode.
Claims (9)
1. a kind of integrative electrochemical electrode system based on nanochannel arrays surface spraying plating gold, the integrative electrochemical
Electrode system is three electrode test systems or bipolar electrode test macro, it is characterised in that: at least described working electrode is AAO-
Au electrode slice, AAO-Au electrode slice are by anodised aluminium nanochannel arrays (AAO) (1) and spraying plating in anodised aluminium nanometer
The layer gold (2) on channel array (1) surface is constituted.
2. a kind of integrative electrochemical electrode system based on nanochannel arrays surface spraying plating gold according to claim 1
System, it is characterised in that: the AAO-Au electrode slice is encapsulated by insulating layer (4) and connects electrochemical workstation through conducting wire (3).
3. a kind of integrative electrochemical electrode system based on nanochannel arrays surface spraying plating gold according to claim 1
System, it is characterised in that: be sprayed with layer gold (2) on two surface of lamella of anodised aluminium nanochannel arrays (1), layer gold (2) is complete
Whole covering surface.
4. a kind of integrative electrochemical electrode system based on nanochannel arrays surface spraying plating gold according to claim 1
System, it is characterised in that: the AAO-Au electrode slice use ion sputtering process, anodised aluminium nanochannel arrays (AAO) with
It is intracavitary that certain angle is placed in ion sputtering, by adjusting sputtering current and time, respectively in anodised aluminium nanochannel arrays
(AAO) both side surface spraying plating layer gold obtains AAO-Au electrode slice.
5. a kind of integrative electrochemical electrode system based on nanochannel arrays surface spraying plating gold according to claim 4
System, it is characterised in that: when ion sputtering, plane and ion sputtering instrument cavity where anodised aluminium nanochannel arrays (AAO)
Base plane between angular range be 5 °~80 °, charging and discharging currents are not less than 3 μ A, and the spraying plating time is no less than 10s.
6. a kind of integrative electrochemical electrode based on nanochannel arrays surface spraying plating gold according to claim 1 or 2
System, it is characterised in that: the layer gold of AAO-Au electrode slice both side surface is separately connected using two conducting wires (3), it is viscous using having
Property and waterproof film material as insulating layer, engraved structure is provided on insulating layer, insulating layer cladding is immersed in electrolyte solution
In conductor part, the connection contact portion of conducting wire and AAO-Au electrode slice and the AAO-Au electrode slice in addition to engraved structure
Both side surface, AAO-Au electrode slice only connect contact at engraved structure with electrolyte solution.
7. a kind of integrative electrochemical electrode system based on nanochannel arrays surface spraying plating gold according to claim 6
System, it is characterised in that: AAO-Au electrode slice both side surface is used as working electrode or AAO-Au electrode slice one at engraved structure
Side surface is used as working electrode at engraved structure, and another side surface is at engraved structure as reference electrode and to electrode.
8. a kind of integrative electrochemical electrode system based on nanochannel arrays surface spraying plating gold according to claim 1
System, it is characterised in that: the conducting wire (3) includes but is not limited to spun gold, copper wire, platinum filament and aluminium foil.
9. a kind of integrative electrochemical electrode system based on nanochannel arrays surface spraying plating gold according to claim 1
System, it is characterised in that: the film material with viscosity and waterproof includes but is not limited to dimethyl silicone polymer (PDMS)
Film and adhesive tape.
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| LIU CHANYUAN等: "An all-in-one nanopore battery array", 《NATURE NANOTECHNOLOGY》 * |
| ZHOU CHUNXIA等: "Quantitative Label-Free Listeria Analysis Based On Aptamer Modified Nanoporous Sensor", 《ACS SENSORS》 * |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109725025A (en) * | 2019-02-22 | 2019-05-07 | 清华大学 | A kind of test equipment and method of the membrane electrode of solid oxide fuel cell |
| CN109725025B (en) * | 2019-02-22 | 2020-12-08 | 清华大学 | Testing equipment and method for membrane electrode of solid oxide fuel cell |
| CN110376262A (en) * | 2019-07-03 | 2019-10-25 | 浙江大学 | A method of salmonella is detected based on integrated form nanochannel electrode separation |
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