CN110308628A - A method of based on surface charge printing preparation with power path, the biological droplet transport of progress, xerography and micro-nano self assembly - Google Patents
A method of based on surface charge printing preparation with power path, the biological droplet transport of progress, xerography and micro-nano self assembly Download PDFInfo
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- CN110308628A CN110308628A CN201910575991.9A CN201910575991A CN110308628A CN 110308628 A CN110308628 A CN 110308628A CN 201910575991 A CN201910575991 A CN 201910575991A CN 110308628 A CN110308628 A CN 110308628A
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- charge
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- density gradient
- surface charge
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
Abstract
The invention discloses a kind of based on surface charge printing preparation with power path, the method for carrying out biological droplet transport, xerography and micro-nano self assembly, belongs to numerical control print system technical field.It is dripped with micro-liquid-dorp nozzle to the super hydrophobic surface of material the following steps are included: the material with superhydrophobic property is placed on mobile platform；The drippage height and platform movement routine for controlling droplet discharging head simultaneously print the band power path with charge density gradient on the surface of the material.Biofluid transmission is carried out using the band power path of the charge density gradient of formation, and carries out xerography and micro-nano self assembly using based on surface charge printing.The present invention using droplets impact there is superhydrophobic surface material, which to contact, makes its electrification, and pass through control water droplet jetting height and platform movement routine, print the band power path with charge density gradient, its is easy to operate, equipment is simple and at low cost, whole printing process is not necessarily to external power supply, and security risk is not present.
Description
Technical field
The present invention relates to numerical control print system technical fields, and in particular to one kind is based on surface charge printing preparation band circuit
Diameter, the method for carrying out biological droplet transport, xerography and micro-nano self assembly are more particularly to a kind of based on surface charge printing
It prepares the method with power path with charge density gradient, the band with charge density gradient is prepared based on surface charge printing
Power path is carried out the method for biological droplet transport and its is printed the side for carrying out xerography, micro-nano self assembly based on surface charge
Method.
Background technique
In the micro-fluidic and field of bioanalysis of biofluid transmission application, the generation of surface charge relies primarily on outer
Connect power supply, the charge that external power supply generates, which is applied to biofluid and is converted to charged drop, to be transported.In the process inevitably
It will cause biofluid loss, simultaneously because the transportational process also needs additional power source, so that the high requirements on the equipment.
Currently, generating surface charge relies primarily on external power supply.In Xeroxing, as electrophotography or electrostatic shadow
As the broadest form of art, the step of most basic or starting is exactly the technology for allowing photoconductive dielectric charge, and charging surface
It is exactly the glow discharge generated by external power supply.The method for generating surface charge in this way to use in Xeroxing
Equipment construction it is more complicated, and application scenarios are limited.
And in micro Nano material self assembly, also controlled usually using electrostatic.It is formed by external power supply polarization material
Electret pattern, thus the self assembly to guide micro Nano material.However electret pattern is once being formed, then can not change, no
Being repeated as many times for material is able to achieve to utilize.Meanwhile high-tension apparatus is needed when polarization, so that technical costs is got higher, and there is safety
Hidden danger.
Summary of the invention
The object of the present invention is to provide prepare band power path, progress biological fluids based on surface charge printing more particularly to one kind
The method of drop transmission, xerography and micro-nano self assembly, being more particularly to one kind based on surface charge printing preparation has charge
The method with power path of density gradient based on surface charge printing preparation there is the band power path of charge density gradient to be given birth to
The method of object droplet transport and its method that progress xerography, micro-nano self assembly are printed based on surface charge, it is existing to solve
Surface charge is due to being generated by applying power supply outside, to cause in biofluid transmission, xerography and micro Nano material
The device structure for causing it to use when operation complexity is carried out using existing surface charge in self assembly field and cost requirement is high, together
When the problem of there is also security risks.
The technical scheme to solve the above technical problems is that
A method of based on surface charge printing preparation with charge density gradient with power path comprising following step
It is rapid:
Material with super hydrophobic surface is placed on mobile platform, is dripped with drop syringe needle to the super hydrophobic surface of material
Water；The drippage height and platform movement routine for controlling drop syringe needle simultaneously, are printed in the super hydrophobic surface of material with charge
The band power path of density gradient.
The present invention, using the ionization equilibrium in water droplet there are water, exists simultaneously H using solid liquid interface contact electrification+And OH-,
When the super hydrophobic surface of water droplet and material contacts, super hydrophobic surface tendency absorption negative electrical charge (OH-Ion), thus in solid-liquid circle
Face forms electric double layer.When droplets impact quickly rebound separation after super hydrophobic surface, the hydroxide ion for being adsorbed on surface comes
It is too late to be diffused into water droplet, and be adsorbed and stay in super hydrophobic surface, make super hydrophobic surface band surface charges, and the surface charge
For negative electricity.Water droplet drippage height is higher bigger with the contact area of super hydrophobic surface, and the surface charge of formation its carried charge is also
It is bigger, so that the surface charge density under unit area is also bigger, while controlling drop syringe needle drippage height and platform
Movement routine can print the band power path with charge density gradient on the super hydrophobic surface of material.
Further, in preferred embodiments of the present invention, the angle in above-mentioned water droplet drippage direction and material surface formation
Range is greater than 0 ° and less than 90 °.
Preferably, water droplet drippage direction and material surface formed 5 ° of angular range, 10 °, 15 °, 20 °, 30 °, 45 °,
60 °, 75 ° or 85 °.
Further, in preferred embodiments of the present invention, above-mentioned super hydrophobic surface further includes super-amphiphobic water surface.
Further, in preferred embodiments of the present invention, above-mentioned drop diameter is 500 μm of -10mm.
Preferably, drop diameter is 500 μm, 800 μm, 1mm, 3mm, 5mm, 8mm or 10mm.
Further, in preferred embodiments of the present invention, above-mentioned water droplet drippage initial velocity is 0m/s-50m/s.
Preferably, water droplet drippage initial velocity is 0m/s, 5m/s, 10m/s, 20m/s, 30m/s, 40m/s or 50m/s.Work as water
Water droplet does the movement of falling object and drops on material when drop drippage initial velocity is 0m/s.
A method of based on biofluid transmission is carried out with power path with charge density gradient, using above-mentioned tool
There is the Method of printing with power path of charge density gradient comprising following steps:
It pipettes on biofluid to the material with power path with charge density gradient printed, and in surface electricity
The low density one end of lotus gently discharges biofluid, and biofluid transports surface charge density by the low one end of surface charge density
High one end.
A method of it is printed based on surface charge and carries out xerography characterized by comprising
(1) micro-liquid-dorp nozzle ejects droplets impact on the material of super hydrophobic surface by programmable control, is surpassing
Hydrophobic surface obtains the negative electricity image of image pattern；
(2) positively charged Toner is sprayed on the material with super hydrophobic surface, obtains the electrostatic image of development；
(3) by positively charged copy paper and front face on the material with super hydrophobic surface, at a temperature of 10 DEG C -80 DEG C
1s-1min is heated, cured copy image is obtained.
Of the invention prints the method for carrying out xerography based on surface charge, based on the principle directly duplicated, according to figure
Have on the material of super hydrophobic surface as the text depth ejects droplets impact by programmable control by micro-liquid-dorp nozzle, according to
Big according to pictograph depths surface charge density, it is small that pictograph shallowly locates surface charge density, to obtain in super hydrophobic surface
The negative electricity image of image pattern.Then its development is made by electrostatic image attraction by positively charged Toner, passes through duplicating
Paper is fixed to obtain cured copy image.
Further, in preferred embodiments of the present invention, above-mentioned drop diameter is 1um-500 μm.
Preferably, drop diameter is 1 μm, 10 μm, 100 μm, 200 μm, 400 μm or 500 μm.
A method of it is printed based on surface charge and carries out micro-nano self assembly comprising following steps:
Micro-liquid-dorp nozzle, which is ejected droplets impact by programmable control, to be had on the material of super hydrophobic surface, in its table
Face forms customized patterned surface charge microarray, then place the material in the suspension containing nano particle, stands 5s-
It is taken out after 10min, obtains the microarray of nano-particles self assemble on the surface of the material.
Further, in preferred embodiments of the present invention, above-mentioned drop diameter is 1um-500 μm.
Preferably, drop diameter is 1 μm, 10 μm, 100 μm, 200 μm, 400 μm or 500 μm.
The surface charge generated by means of the present invention carries out purging 5s- using surface charge of the ion wind to printing
15s can be removed.
The invention has the following advantages:
1, the present invention using droplets impact there is superhydrophobic surface material, which to contact, makes its electrification, and passes through control water droplet
Drippage height and platform movement routine print the band power path with charge density gradient, easy to operate, equipment it is simple and
At low cost, whole printing process is not necessarily to external power supply, and security risk is not present.
2, the transmission that can be used for biofluid with power path with charge density gradient that present invention printing is formed, can
Realize biofluid quickly and free of losses droplet transfer, be of great significance for the biological sample of high value.
3, of the invention that the method for carrying out xerography is printed based on surface charge, it is produced using droplets impact super hydrophobic surface
Raw surface charge, generation surface charge method is simple and convenient, production cost low for equipment requirements is low, and the surface of its generation
Charge can be removed easily by ion wind, have erasable property.
4, of the invention that the method for carrying out micro-nano self assembly is printed based on surface charge, utilize droplets impact super hydrophobic surface
Generate surface charge, generate surface charge method it is simple and convenient, without using high-tension apparatus, then and be not present security risk.
The surface charge generated simultaneously is easy to erasable, and electret pattern can be varied multiple times, to realize that being repeated as many times for material utilizes.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the SiO that embodiment 14 obtains2The microarray of nano-particles self assemble.
Specific embodiment
Principles and features of the present invention are described with reference to embodiments, the given examples are served only to explain the present invention,
It is not intended to limit the scope of the present invention.The person that is not specified actual conditions in embodiment, according to normal conditions or manufacturer suggests
Condition carries out.Reagents or instruments used without specified manufacturer is the conventional products that can be obtained by commercially available purchase.
It should be noted that the drop diameter in the present invention refers to the water droplet come out from drop syringe needle or micro-liquid-dorp nozzle
Diameter.
One, a kind of method with power path based on surface charge printing preparation with charge density gradient comprising with
Lower step:
Material with super hydrophobic surface, which is placed in tilt angle, is on 1 ° -10 ° of mobile platform, with drop syringe needle to material
The super hydrophobic surface of material drips, water droplet drip the angular range that direction and material surface are formed be greater than 0 ° and less than 90 °, wherein
Drop diameter is 500 μm of -10mm, water droplet drippage initial velocity is 0m/s-50m/s, is water droplet with certainly when drippage initial velocity is 0m/s
Material surface is dropped by falling bodies.The drippage height and platform movement routine for controlling drop syringe needle simultaneously, in the super-hydrophobic of material
Printout surface has provided charge density gradient paths.The starting drippage height that drop syringe needle drips water droplet is 10mm-50mm, terminal
Drippage height be 80mm-150mm, wherein starting drippage height and terminal drippage height respectively refer to drop syringe needle drippage starting point and
Vertical height when dripping terminal apart from material surface.Material of the invention further includes super-amphiphobic water meter in addition to super hydrophobic surface
Face.
Embodiment 1:
The method with power path based on surface charge printing preparation with charge density gradient of the present embodiment comprising
Following steps:
Material with super hydrophobic surface is placed on the mobile platform that tilt angle is 10 °, material is on a mobile platform
It is moved horizontally with 3mm/s speed, and the moving distance of material is 60mm.
It is dripped with drop syringe needle to the super hydrophobic surface of material, the angle that water droplet drippage direction is formed with material surface is
5 °, wherein drop diameter is 500 μm, water droplet drippage initial velocity is 50m/s.The starting of drop syringe needle drippage water droplet drips height and is
50mm drips height 80mm with the terminal that the mobile drop syringe needle of the speed of 1mm/s moves to reach water droplet along the vertical direction, hits high
Degree difference is 30mm.During this period, water droplet drop speed is with 2 drops/s drippage.
The band with charge density gradient that length is 45mm, width is 650 μm is printed in the super hydrophobic surface of material
Power path, the surface potential with power path are -2700v to -800v.
Embodiment 2:
The method and implementation with power path based on surface charge printing preparation with charge density gradient of the present embodiment
Example 1 is identical, and distinguishing in the angle that the drippage direction of water droplet in this present embodiment and material surface are formed is 10 °, wherein drop diameter
Dripping initial velocity for 800 μm, water droplet is 40m/s.
The band with charge density gradient that length is 57mm, width is 900 μm is printed in the super hydrophobic surface of material
Power path, the surface potential with power path are -2850v to -980v.
Embodiment 3:
The method and implementation with power path based on surface charge printing preparation with charge density gradient of the present embodiment
Example 1 is identical, and distinguishing in the angle that the drippage direction of water droplet in this present embodiment and material surface are formed is 15 °, wherein drop diameter
Dripping initial velocity for 1mm, water droplet is 30m/s.
The band with charge density gradient that length is 47mm, width is 1.1mm is printed in the super hydrophobic surface of material
Power path, the surface potential with power path are -3000v to -1000v.
Embodiment 4:
The method with power path based on surface charge printing preparation with charge density gradient of the present embodiment comprising
Following steps:
Material with super hydrophobic surface, which is placed in tilt angle, is on 5 ° of mobile platform, material on a mobile platform with
The S-shaped movement of 2mm/s speed, and the mobile linear distance of the Origin And Destination of material is 60mm.
It is dripped with drop syringe needle to the super hydrophobic surface of material, the angle that water droplet drippage direction is formed with material surface is
20 °, wherein drop diameter is 3mm, water droplet drippage initial velocity is 30m/s.The starting of drop syringe needle drippage water droplet drips height and is
10mm, the terminal drippage height for moving to reach water droplet along the vertical direction with the mobile drop syringe needle of the speed of 1mm/s are hit for 100mm
Hitting difference in height is 90mm.During this period, water droplet drop speed is with 2 drops/s drippage.
Printing the S-shaped that length is 50mm, width is 3.5mm in the super hydrophobic surface of material has charge density gradient
Band power path, the surface potential with power path are -2650v to -780v.
Embodiment 5
The method and implementation with power path based on surface charge printing preparation with charge density gradient of the present embodiment
Example 4 is identical, and distinguishing in the angle that the drippage direction of water droplet in this present embodiment and material surface are formed is 30 °, wherein drop diameter
Dripping initial velocity for 5mm, water droplet is 10m/s.
Printing the S-shaped that length is 45mm, width is 6.2mm in the super hydrophobic surface of material has charge density gradient
Band power path, the surface potential with power path are -2750v to -800v.
Embodiment 6
The method and implementation with power path based on surface charge printing preparation with charge density gradient of the present embodiment
Example 4 is identical, and distinguishing in the angle that the drippage direction of water droplet in this present embodiment and material surface are formed is 45 °, wherein drop diameter
Dripping initial velocity for 8mm, water droplet is 5m/s.
Printing the S-shaped that length is 47mm, width is 9.2mm in the super hydrophobic surface of material has charge density gradient
Band power path, the surface potential with power path are -2900v to -850v.
Embodiment 7:
The method with power path based on surface charge printing preparation with charge density gradient of the present embodiment comprising
Following steps:
Material with super hydrophobic surface is placed on the mobile platform that tilt angle is 1 °, material is pressed on a mobile platform
It spins movement according to 2mm/s speed using initial water droplet dripping position as the center of circle.
It is dripped with drop syringe needle to the super hydrophobic surface of material, the angle that water droplet drippage direction is formed with material surface is
60 °, wherein drop diameter is 10mm, water droplet drippage initial velocity is 0m/s, and water droplet does the movement of falling object and drops onto the super of material
Hydrophobic surface.The starting drippage height that drop syringe needle drips water droplet is 30mm, with the mobile drop syringe needle of the speed of 1mm/s along vertical
The terminal drippage height that direction moves to reach water droplet is 150mm, and shock difference in height is 120mm.During this period, water droplet drop speed is with 2
Drop/s drippage.
The band power path that the circle that diameter is 47mm has charge density gradient is printed in the super hydrophobic surface of material, it should
Surface potential with power path is -2450v to -1850v.
Embodiment 8:
The method and implementation with power path based on surface charge printing preparation with charge density gradient of the present embodiment
Example 7 is identical, and distinguishing in the angle that the drippage direction of water droplet in this present embodiment and material surface are formed is 75 °, wherein drop diameter
Dripping initial velocity for 500 μm, water droplet is 40m/s.
The band power path that the circle that diameter is 43mm has charge density gradient is printed in the super hydrophobic surface of material, it should
Surface potential with power path is -2550v to -1950v.
Embodiment 9:
The method and implementation with power path based on surface charge printing preparation with charge density gradient of the present embodiment
Example 7 is identical, and distinguishing in the angle that the drippage direction of water droplet in this present embodiment and material surface are formed is 85 °, wherein drop diameter
It is 10m/s for 8mm, water droplet dropleting speed.
The band power path that the circle that diameter is 45mm has charge density gradient is printed in the super hydrophobic surface of material, it should
Surface potential with power path is 2670v to -2010v.
Two, a kind of based on surface charge printing preparation to there is the band power path of charge density gradient to carry out biofluid transmission
Method, using it is above-mentioned based on surface charge printing preparation have charge density gradient the method with power path comprising
Following steps:
It pipettes on biofluid to the material with power path with charge density gradient printed, and in surface electricity
The low density one end of lotus gently discharges biofluid, and biofluid transports surface charge density by the low one end of surface charge density
High one end.
Embodiment 10:
What the embodiment 1,4 and 7 that the present embodiment is respectively adopted printed has charge density based on surface charge printing preparation
The band power path of gradient carries out biofluid transmission, and taking the concentration of 10 μ l respectively using liquid-transfering gun is that 0.1mol/LNaCl solution arrives
The low one end of printed path charge density, gently discharges biofluid, and the biofluid after discharging is along band power path
It quickly moves forward and reaches the other end with power path.
The biofluid (NaCl solution) of the present embodiment in embodiment 1,4 and 7 have charge density gradient paths its
Haulage time is respectively 0.05s, 0.12s and 0.35s.
It is three, a kind of that the method for carrying out xerography is printed based on surface charge, comprising the following steps:
(1) micro-liquid-dorp nozzle ejects droplets impact on the material of super hydrophobic surface by programmable control, is surpassing
Hydrophobic surface obtains the negative electricity image of image pattern；Wherein, drop diameter is 1 μm -500 μm, and ejects the initial velocity of water droplet
Degree is 0.1-50m/s；
(2) positively charged Toner is sprayed on the material with super hydrophobic surface, obtains the electrostatic image of development；
(3) it will contact on positively charged copy paper and the material with super hydrophobic surface, heated at a temperature of 10 DEG C -80 DEG C
1s-1min obtains cured copy image.
Embodiment 11:
The present embodiment prints the method for carrying out xerography based on surface charge, comprising the following steps:
(1) micro-liquid-dorp nozzle ejects droplets impact on the material of super hydrophobic surface by programmable control, is surpassing
Hydrophobic surface obtains the negative electricity image of image pattern；Wherein, height of the micro-liquid-dorp nozzle apart from material surface is set as 5mm, water
Dripping diameter is 1 μm, and the initial velocity for ejecting water droplet is 50m/s.
(2) positively charged Toner is sprayed on the material with super hydrophobic surface, obtains the electrostatic image of development；
(3) it by positively charged copy paper and front face on the material with super hydrophobic surface, is heated at a temperature of 10 DEG C
1min obtains cured copy image.
Embodiment 12:
The method for printing progress xerography based on surface charge of the present embodiment is identical as embodiment 11, and difference is:
In step (1), drop diameter is 100 μm, and the initial velocity for ejecting water droplet is 1m/s.Add at a temperature of 40 DEG C in step (3)
Hot 25s.
Embodiment 13:
The method for printing progress xerography based on surface charge of the present embodiment is identical as embodiment 11, and difference is:
In step (1), drop diameter is 500 μm, and the initial velocity for ejecting water droplet is 0.1m/s.In step (3) at a temperature of 80 DEG C
Heat 1s.
Four, a kind of that the method for carrying out micro-nano self assembly is printed based on surface charge comprising following steps:
Micro-liquid-dorp nozzle, which is ejected droplets impact by programmable control, to be had on the material of super hydrophobic surface, in its table
Face forms customized patterned surface charge microarray, then place the material in the suspension containing nano particle, stands 5s-
It is taken out after 10min, obtains the microarray of nano-particles self assemble on the surface of the material.Wherein, drop diameter is 1 μm -500 μm, and
The initial velocity for ejecting water droplet is 0.1-50m/s.
Embodiment 14:
The present embodiment prints the method for carrying out micro-nano self assembly based on surface charge comprising following steps:
On the mobile platform that material with super hydrophobic surface is placed in, it is ejected by micro-liquid-dorp nozzle generation water droplet super thin
Water surface, height of the micro-liquid-dorp nozzle apart from material surface are set as 5mm, and drop diameter 5um, water droplet jet velocity are 10m/s；
By programmable control platform movement routine, customized patterned surface charge microarray is obtained.Surface charge microarray is
Drop diameter is 10 μm, and the matrix area that the gross area that 100 μm are divided between water droplet is 1cm*1cm measures the surface electricity in the region
Position is -300v.The super hydrophobic surface with surface charge array is placed in containing SiO2In the alcohol suspension of nano particle,
Middle SiO2The partial size of nano particle is 500nm, and SiO2Nano particle concentration in alcohol suspension is 5%.It is taken after standing 5s
Out, SiO is obtained2The microarray of nano-particles self assemble, as shown in Figure 1.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of method with power path based on surface charge printing preparation with charge density gradient, which is characterized in that its
The following steps are included:
Material with super hydrophobic surface is placed on mobile platform, is dripped with drop syringe needle to the super hydrophobic surface of the material
Water, while the drippage height and platform movement routine of drop syringe needle are controlled, it prints in the super hydrophobic surface of material with charge
The band power path of density gradient.
2. the side with power path based on surface charge printing preparation with charge density gradient according to claim 1
Method, which is characterized in that the angular range of the water droplet drippage direction and material surface formation is greater than 0 ° and less than 90 °.
3. the side with power path based on surface charge printing preparation with charge density gradient according to claim 1
Method, which is characterized in that the super hydrophobic surface further includes super-amphiphobic water surface.
4. the band circuit based on surface charge printing preparation with charge density gradient according to claim 1-3
The method of diameter, which is characterized in that the drop diameter is 500 μm of -10mm.
5. the band circuit based on surface charge printing preparation with charge density gradient according to claim 1-3
The method of diameter, which is characterized in that the water droplet drippage initial velocity is 0m/s-50m/s.
6. a kind of side for carrying out biofluid transmission with power path based on surface charge printing preparation with charge density gradient
Method, which is characterized in that charge density ladder is had based on surface charge printing preparation using as described in any one in claim 1-5
The method with power path of degree comprising following steps:
It pipettes on biofluid to the material with power path with charge density gradient printed, and close in surface charge
It spends low one end and gently discharges biofluid, it is high that biofluid by the low one end of surface charge density transports surface charge density
One end.
7. it is a kind of based on surface charge print carry out xerography method, which is characterized in that itself the following steps are included:
(1) micro-liquid-dorp nozzle ejects droplets impact by programmable control and has on the material of super hydrophobic surface, super-hydrophobic
Surface obtains the negative electricity image of image pattern；
(2) positively charged Toner is sprayed on the material with super hydrophobic surface, obtains the electrostatic image of development；
(3) it by positively charged copy paper and front face on the material with super hydrophobic surface, is heated at a temperature of 10 DEG C -80 DEG C
1s-1min obtains cured copy image.
8. according to claim 7 print the method for carrying out xerography based on surface charge, which is characterized in that the water
Dripping diameter is 1 μm -500 μm.
9. it is a kind of based on surface charge print carry out micro-nano self assembly method, which is characterized in that itself the following steps are included:
Micro-liquid-dorp nozzle, which is ejected droplets impact by programmable control, to be had on the material of super hydrophobic surface, in its surface shape
At customized patterned surface charge microarray, then place the material in the suspension containing nano particle, 5s- is stood
It is taken out after 10min, obtains the microarray of nano-particles self assemble on the surface of the material.
10. according to claim 9 print the method for carrying out micro-nano self assembly based on surface charge, which is characterized in that institute
Stating drop diameter is 1 μm -500 μm.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111521665A (en) * | 2020-04-09 | 2020-08-11 | 电子科技大学 | Method for regulating and controlling charge quantity and charge property of liquid drops |
| CN111984979A (en) * | 2020-08-18 | 2020-11-24 | 西安交通大学 | Method for encrypting information by printing charged path |
| CN113976197A (en) * | 2021-11-02 | 2022-01-28 | 厦门大学 | Method for rapidly switching transport direction of liquid drops |
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| CN111521665A (en) * | 2020-04-09 | 2020-08-11 | 电子科技大学 | Method for regulating and controlling charge quantity and charge property of liquid drops |
| CN111521665B (en) * | 2020-04-09 | 2021-12-21 | 电子科技大学 | Method for regulating and controlling charge quantity and charge property of liquid drops |
| CN111984979A (en) * | 2020-08-18 | 2020-11-24 | 西安交通大学 | Method for encrypting information by printing charged path |
| CN111984979B (en) * | 2020-08-18 | 2023-04-11 | 西安交通大学 | Method for encrypting information by printing charged path |
| CN113976197A (en) * | 2021-11-02 | 2022-01-28 | 厦门大学 | Method for rapidly switching transport direction of liquid drops |
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Application publication date: 20191008 |