CN108107918B - Device and method for controlling movement direction of liquid drop - Google Patents
Device and method for controlling movement direction of liquid drop Download PDFInfo
- Publication number
- CN108107918B CN108107918B CN201810027396.7A CN201810027396A CN108107918B CN 108107918 B CN108107918 B CN 108107918B CN 201810027396 A CN201810027396 A CN 201810027396A CN 108107918 B CN108107918 B CN 108107918B
- Authority
- CN
- China
- Prior art keywords
- protruding structure
- distance
- protruding
- moving
- movement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 82
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000000758 substrate Substances 0.000 claims abstract description 16
- 230000004888 barrier function Effects 0.000 claims description 57
- 230000003068 static effect Effects 0.000 claims description 34
- 230000008859 change Effects 0.000 claims description 6
- 230000002209 hydrophobic effect Effects 0.000 description 7
- 239000007787 solid Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/10—Control of position or direction without using feedback
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Telephone Set Structure (AREA)
- Automatic Analysis And Handling Materials Therefor (AREA)
Abstract
The invention discloses a device and a method for controlling the movement direction of liquid drops, comprising a protruding structure, a substrate and a vibrating part, wherein the vibrating part is connected with the lower surface of the substrate; the other end is an end; the protruding structure close to the moving end is a first protruding structure, the other end is a second protruding structure, the center distance between two adjacent first protruding structures is a first distance, and the center distance between two adjacent second protruding structures is a second distance; any two different protruding structures satisfy the following relationship: the ratio of the first protruding structure top area to the second protruding structure top area is less than the ratio of the first distance to the second distance and greater than the square ratio of the first distance to the second distance; the device and the method for controlling the movement direction of the liquid drop can control the liquid drop to move according to a fixed direction.
Description
Technical Field
The invention relates to the technical field of liquid drop movement, in particular to a device and a method for controlling the liquid drop movement direction.
Background
At present, researchers adopt a method of adding chemical substances on the solid surface to generate a contact angle gradient surface to control the movement of a liquid drop, or adopt a microstructure method to generate the contact angle gradient surface to control the movement of the liquid drop, wherein the contact angle gradient exists on the surfaces, and the surfaces are all used for controlling the movement of the liquid drop from the side with a large static contact angle to the side with a small static contact angle, namely the movement of the liquid drop from a hydrophobic side to a hydrophilic side.
Disclosure of Invention
The invention aims to provide a device and a method for controlling the movement direction of liquid drops, which can control the movement of liquid drops on a solid surface and move according to a fixed direction.
The technical scheme is as follows:
the device for controlling the movement direction of the liquid drops comprises a protruding structure, a substrate and a vibrating part, wherein the vibrating part is connected with the lower surface of the substrate, the protruding structure is positioned on the upper surface of the substrate, the protruding structure changes along the movement direction, the protruding structure is the same along the vertical direction, one end of the protruding structure, which starts to change, is a moving end, and one end of the protruding structure, which ends to change, is an ending end;
in the moving direction, the protruding structure close to the moving end is a first protruding structure, the protruding structure close to the ending end is a second protruding structure, the center distance of two adjacent first protruding structures is a first distance, and the center distance of two adjacent second protruding structures is a second distance;
in the moving direction, any two different protruding structures satisfy the following relationship: the ratio of the first protruding structure top area to the second protruding structure top area is less than the ratio of the first distance to the second distance and greater than the square ratio of the first distance to the second distance.
If the protruding structure is a cylindrical protruding structure, in the moving direction, any two different cylindrical protruding structures satisfy the following relationship: the square ratio of the first cylinder radius to the second cylinder radius is less than the ratio of the first distance to the second distance and greater than the square ratio of the first distance to the second distance.
The moving direction is perpendicular to the vertical direction.
In the vertical direction, the same protruding structure has at least one row.
The protruding structures between the moving end and the ending end are parallel to each other.
A method of controlling the direction of movement of a droplet, comprising: the liquid drops drop from the upper part of the protruding structure or are static on the protruding structure, one side of the edge of the liquid drops, which is close to the moving end, is a first side position, one side of the edge of the liquid drops, which is close to the ending end, is a second side position, the protruding structure positioned at the first side position is a first protruding structure, the protruding structure positioned at the second side position is a second protruding structure, the center distances of two adjacent first protruding structures are first distances in the vertical direction, and the center distances of two adjacent second protruding structures are second distances;
the first protruding structure and the second protruding structure satisfy the following relationship: the ratio of the first protruding structure top area to the second protruding structure top area is less than the ratio of the first distance to the second distance and greater than the square ratio of the first distance to the second distance;
the vibration part transmits vibration energy to the liquid drop through the substrate, and the liquid drop moves from the first side position to the second side position.
The protruding structures at the first side are the same, and the protruding structures at the second side are the same.
The first side has a first moving energy barrier and a first static contact angle, the second side has a second moving energy barrier and a second static contact angle, the first moving energy barrier is smaller than the second moving energy barrier, and the first static contact angle is smaller than the second static contact angle.
The method also comprises the following steps:
the liquid drops drop on the protruding structures;
the liquid drop contacts the top surface of the protruding structure;
the edges of the liquid drops are positioned at the first side position and the second side position;
the first side and the second side are respectively provided with a first moving energy barrier and a second moving energy barrier;
transmitting vibration energy to the liquid drop through the vibration part;
the first moving energy barrier is smaller than the second moving energy barrier;
the vibration energy firstly meets the energy required by the first moving energy barrier, and the first side reaches the moving condition;
the droplet moves from the first side to the second side.
Further comprises:
the liquid drop moves from the first side position to the second side position, and energy obtained by the liquid drop from the vibration part is released;
after the liquid drops release the obtained energy, the liquid drops stop moving;
the liquid droplets remain in contact with the top surface of the protruding structure;
the edges of the drop are located at the new first side and the new second side;
the new first side and the new second side have a new first movement energy barrier and a new second movement energy barrier, respectively;
transmitting vibration energy to the liquid drop through the vibration part;
the new first movement energy barrier is smaller than the new second movement energy barrier;
the vibration energy firstly meets the energy required by the new first moving energy barrier, and the new first side reaches the moving condition;
the droplet moves from the new first side to the new second side.
The advantages and principles of the invention are described below:
1. the base is used for setting a protruding structure, so that the protruding structure can be fixed on the upper surface of the base, the protruding structure supports liquid drops, the liquid drops can be stopped on the top surface of the protruding structure and can not drop on the upper surface of the base, the vibration part can provide energy required by movement of the liquid drops, and the two different protruding structures are arranged according to the relation that the ratio of the top area of the first protruding structure to the top area of the second protruding structure is smaller than the ratio of the first distance to the second distance and is larger than the square ratio of the first distance to the second distance, so that the liquid drops move from the first protruding structure to the second protruding structure, namely move according to the fixed direction.
2. Because the top area of the cylindrical protruding structure is inconsistent with the top area of the square protruding structure in calculation mode, when the cylindrical protruding structures are arranged, the top area of the cylindrical protruding structures is utilized to calculate, so that the arrangement relation of the cylindrical protruding structures can be obtained, and the arrangement relation also satisfies the requirement that liquid drops move from the first protruding structures to the second protruding structures.
3. The moving direction is vertical to the vertical direction, so that the arrangement of the protruding structures is orderly, and the moving direction of the liquid drops can be better controlled.
4. In the vertical direction, the same protruding structure is provided with at least one row, so that when the liquid drops fall on the top surface of the protruding structure, the liquid drops can move from one row close to the moving end to one row close to the ending end.
5. The protruding structures between the moving end and the ending end are parallel to each other, so that the protruding structures are orderly arranged, and the protruding structures are also convenient to be arranged on the substrate.
6. The arrangement relation of the protruding structures at the two sides of the edge of the liquid drop is that the ratio of the top area of the first protruding structure to the top area of the second protruding structure is smaller than the ratio of the first distance to the second distance and larger than the square ratio of the first distance to the second distance; the first moving energy barrier is smaller than the second moving energy barrier and the first static contact angle is smaller than the second static contact angle.
7. Since the vibration part transmits vibration energy to the liquid drop, and the first movement energy barrier is smaller than the second movement energy barrier, the vibration energy firstly meets the energy required by the first movement energy barrier, the liquid drop can move from the first side to the second side, and at the moment, the first static contact angle is smaller than the second static contact angle, when the protruding structures are arranged according to the relation, the liquid drop can move from the side with the smaller static contact angle to the side with the larger static contact angle, namely, the liquid drop moves from the hydrophilic side to the hydrophobic side, and the liquid drop is not limited to the contact angle gradient surface in the process of controlling the liquid drop to move.
8. When the droplet releases the accumulated energy from the vibration section, the droplet stops moving, but the edge of the droplet is at a new first side and a new second side, and when the droplet absorbs the new first movement energy barrier, the droplet continues to move to the new second side, and the process is repeated until the droplet leaves the end.
Drawings
FIG. 1 is a front view of an apparatus for controlling the direction of movement of a liquid droplet according to an embodiment of the invention;
FIG. 2 is a schematic view of a protruding structure according to an embodiment of the present invention;
reference numerals illustrate:
11. first protruding structure 12, second protruding structure 13, base, 14, first side, 15, second side, 20, liquid droplet.
Detailed Description
The following describes embodiments of the present invention in detail.
Example 1
As shown in fig. 1 to 2, the device for controlling the movement direction of the droplet 20 includes a protruding structure, a substrate 13 and a vibrating portion, wherein the vibrating portion is connected with the lower surface of the substrate 13, the protruding structure is located on the upper surface of the substrate 13, the protruding structure changes along the movement direction, the protruding structures are the same along the vertical direction, one end of the protruding structure, which starts to change, is a moving end, and one end of the protruding structure, which ends to change, is an ending end;
the protruding structure of the embodiment is a square protruding structure, and the top surface of the protruding structure is square;
in the moving direction, the protruding structure close to the moving end is a first protruding structure 11, the protruding structure close to the ending end is a second protruding structure 12, in the vertical direction, the center distance between two adjacent first protruding structures 11 is a first distance, and the center distance between two adjacent second protruding structures 12 is a second distance;
in the moving direction, any two different protruding structures satisfy the following relationship: the ratio of the top area of the first protruding structures 11 to the top area of the second protruding structures 12 is smaller than the ratio of the first distance to the second distance and larger than the square ratio of the first distance to the second distance.
The moving direction is perpendicular to the vertical direction, and in the vertical direction, the same protruding structure is provided with at least one row.
The protruding structures between the moving end and the ending end are parallel to each other.
The design size parameters of the protruding structure in this embodiment are as follows:
units: micron meter
A method of controlling the direction of movement of a droplet 20 comprising: the liquid drop 20 drops from the upper part of the protruding structure or is static on the protruding structure, one side of the edge of the liquid drop 20, which is close to the moving end, is a first side 14, one side of the edge of the liquid drop 20, which is close to the ending end, is a second side 15, the protruding structures at the first side 14 are the same, the protruding structures at the first side 11 are the first protruding structures, the protruding structures at the second side 15 are the same, and the protruding structures at the second side 12 are the second protruding structures; in the vertical direction, the center distance between two adjacent first protruding structures 11 is a first distance, and the center distance between two adjacent second protruding structures 12 is a second distance; the first side 14 has a first moving energy barrier and a first static contact angle and the second side 15 has a second moving energy barrier and a second static contact angle;
the first projection structure 11 and the second projection structure 12 satisfy the following relationship: the ratio of the top area of the first protruding structures 11 to the top area of the second protruding structures 12 is smaller than the ratio of the first distance to the second distance and is larger than the square ratio of the first distance to the second distance; the first moving energy barrier is smaller than the second moving energy barrier, and the first static contact angle is smaller than the second static contact angle;
the vibration part transmits vibration energy to the liquid drop 20 through the substrate 13, and the liquid drop 20 moves from the first side 14 to the second side 15 in the direction a.
The method also comprises the following steps:
the droplet 20 lands on the protruding structure;
the liquid droplets 20 are in contact with the top surface of the protruding structure;
the edges of the drop 20 are located at the first side 14 and the second side 15;
the first side 14 and the second side 15 have a first movement energy barrier and a second movement energy barrier, respectively;
transmitting vibration energy to the liquid drop through the vibration part;
the first moving energy barrier is smaller than the second moving energy barrier;
the vibration energy first meets the energy required for the first moving energy barrier, the first side 14 reaching the moving condition;
the droplet 20 moves from the first side 14 in the direction of the second side 15.
Further comprises:
the droplet 20 moves from the first side 14 to the second side 15, releasing the energy of the droplet 20 from the vibration part;
after the droplet 20 has released the energy obtained, the droplet 20 stops moving;
the droplet 20 is still in contact with the top surface of the protruding structure;
the edges of the drop 20 are located at the new first side 14 and the new second side 15;
the new first side 14 and the new second side 15 have a new first movement energy barrier and a new second movement energy barrier, respectively;
transmitting vibration energy to the liquid drop through the vibration part;
the new first movement energy barrier is smaller than the new second movement energy barrier;
the vibration energy first meets the energy required for the new first movement energy barrier, the new first side 14 reaching the movement condition;
the droplet 20 moves from the new first side 14 in the direction of the new second side 15.
This embodiment has the following advantages:
1. the arrangement of the protruding structures on both sides of the edge of the droplet 20 is as follows: the ratio of the top area of the first protruding structures 11 to the top area of the second protruding structures 12 is smaller than the ratio of the first distance to the second distance and is larger than the square ratio of the first distance to the second distance; the first movable energy barrier is smaller than the second movable energy barrier, and the first static contact angle is smaller than the second static contact angle; when the vibration part transmits vibration energy to the liquid drop, and the first movement energy barrier is smaller than the second movement energy barrier, the vibration energy firstly satisfies the energy required by the first movement energy barrier, and the liquid drop 20 moves from the first side 14 to the second side 15, at this time, the first static contact angle is smaller than the second static contact angle, so when the protruding structures are arranged according to the above relation, the liquid drop 20 can move from the side with the smaller static contact angle to the side with the larger static contact angle, that is, the liquid drop 20 moves from the hydrophilic side to the hydrophobic side.
The reasoning for deriving the salient structure arrangement relationship is as follows:
the calculation formula of the movement energy is as follows:
wherein,the energy barrier is the energy barrier when the droplet 20 moves; Δx is the center distance between two adjacent protruding structures in the vertical direction; a is the side length of the protruding structure;
the formula is that the proportion of the top area of the protruding structure to the square of the center distance of two identical protruding structures
γ lv Is the surface tension between liquid and gas, gamma sl Is the surface tension between solid and liquid, gamma sv Is the surface tension between solid and gas, gamma lv 、γ sl 、γ sv Is determined according to the property of the liquid and is a fixed value; θ Y The contact angle is calculated according to the young's equation:
γ sv -γ sl ＝γ lv cosθ Y
the static contact angle is calculated as:
wherein θ is s Is the static contact angle.
At the first projection structure 11, the following formula can be obtained:
at the second projection arrangement 12, the following formula can be used:
as can be seen from formulas (2) and (5)And->The magnitude of (2) determines the static contact angle θ 1 And theta 2 Is of a size of (a) and (b).
When (when)In this case, the static contact angle θ of the first projection structures 11 and the second projection structures 12 can be obtained 1 ＜θ 2 I.e. the first protruding structures 11 are hydrophilic positions with respect to the second protruding structures 12.
When (when)Then->The variation can be obtained:
only the equation needs to be satisfied at this time:
so thatI.e. the movement energy of the first protruding structure 11 is smaller than the movement energy of the second protruding structure 12, the three phase line of the droplet 20 will first move at the first protruding structure 11, at which time the droplet 20 can be caused to move from the position of the first protruding structure 11 to the position of the second protruding structure 12, i.e. controlled to move from the hydrophilic side to the hydrophobic side.
2. The moving direction is perpendicular to the vertical direction, so that the arrangement of the protruding structures is orderly, and the moving direction of the liquid drops 20 can be better controlled.
3. In the vertical direction, the same protruding structure has at least one row, so that when the droplet 20 lands on the top surface of the protruding structure, the droplet 20 moves from the row near the moving end to the row near the ending end.
4. The protruding structures between the moving end and the finishing end are parallel to each other, so that the protruding structures are orderly arranged, and the protruding structures are also convenient to be arranged on the substrate 13.
5. From the data on the table, it is calculated that, from sequence number 1 to sequence number 15,the static contact angle is continuously reduced, namely the static contact angle is continuously increased, the water is increasingly hydrophobic from the sequence number 1 to the sequence number 15, but the energy barrier for the movement of the liquid drop 20 is continuously increased from the sequence number 1 to the sequence number 15, so that the liquid drop 20 can be controlled from the sequence number 1 to the sequence number 15The direction of number 15 is shifted, i.e. from hydrophilic to hydrophobic.
6. After the droplet 20 releases the accumulated energy from the vibration section, the droplet 20 stops moving, but at this time the edge of the droplet 20 will be at the new first side 14 and the new second side 15, and after the droplet 20 absorbs the new first movement energy barrier, the movement will continue to the new second side 15, and the process will be repeated until the droplet 20 leaves the end.
Example two
The difference between this embodiment and the first embodiment is that:
the protruding structure of this embodiment is cylindrical protruding structure, and its top surface is circular, and in the direction of movement, arbitrary two different cylindrical protruding structures satisfy following relation: the square ratio of the first cylinder radius to the second cylinder radius is less than the ratio of the first distance to the second distance and greater than the square ratio of the first distance to the second distance.
This embodiment has the following advantages:
since the top area of the cylindrical protruding structure is inconsistent with the top area of the square protruding structure, when the cylindrical protruding structures are arranged, the top area of the cylindrical protruding structure is used for calculating, so that the arrangement relation of the cylindrical protruding structures can be obtained, and the arrangement relation also satisfies the movement of the liquid drops 20 from the first protruding structure 11 to the second protruding structure 12.
The reasoning is as follows:
in the case of a cylindrical protruding structure,the calculation formula of (2) is as follows:
then at the first cylindrical protruding structure:
at the second cylindrical protruding structure:
when (when)Then->Simplifying and obtaining:
the variation can be obtained:
where d is the cylinder radius, then only the equation needs to be satisfied:
so thatI.e. the movement energy of the first protruding structure 11 is smaller than the movement energy of the second protruding structure 12, the three phase line of the droplet 20 will first move at the first protruding structure 11, at which time the droplet 20 can be caused to move from the position of the first protruding structure 11 to the position of the second protruding structure 12, i.e. controlled to move from the hydrophilic side to the hydrophobic side.
The rest of the present embodiment can refer to the first embodiment, and will not be described herein.
The foregoing is merely exemplary embodiments of the present invention, and is not intended to limit the scope of the present invention; any substitutions and modifications made without departing from the spirit of the invention are within the scope of the invention.
Claims (10)
1. The device for controlling the movement direction of the liquid drops is characterized by comprising a protruding structure, a substrate and a vibrating part, wherein the vibrating part is connected with the lower surface of the substrate, the protruding structure is positioned on the upper surface of the substrate, the protruding structure changes along the movement direction, the protruding structures are the same along the vertical direction, one end of the protruding structure, which starts to change, is a moving end, and one end of the protruding structure, which ends to change, is an ending end;
in the moving direction, the protruding structure close to the moving end is a first protruding structure, the protruding structure close to the ending end is a second protruding structure, the center distance of two adjacent first protruding structures is a first distance, and the center distance of two adjacent second protruding structures is a second distance;
in the moving direction, any two different protruding structures satisfy the following relationship: the ratio of the first protruding structure top area to the second protruding structure top area is less than the ratio of the first distance to the second distance and greater than the square ratio of the first distance to the second distance.
2. The apparatus for controlling the movement direction of droplets according to claim 1, wherein the protruding structures are cylindrical protruding structures, and any two different cylindrical protruding structures in the movement direction satisfy the following relationship: the square ratio of the first cylinder radius to the second cylinder radius is less than the ratio of the first distance to the second distance and greater than the square ratio of the first distance to the second distance.
3. The apparatus for controlling the direction of movement of a liquid droplet of claim 1, wherein the direction of movement is perpendicular to the vertical direction.
4. A device for controlling the direction of movement of a droplet according to claim 3, wherein the same projection arrangement has at least one row in the vertical direction.
5. The apparatus of claim 1, wherein the protruding structures between the moving end and the finishing end are parallel to each other.
6. A method of controlling the direction of movement of a droplet, comprising: the liquid drops drop from the upper part of the protruding structure, one side of the edge of the liquid drops, which is close to the moving end, is a first side position, one side of the edge of the liquid drops, which is close to the ending end, is a second side position, the protruding structure positioned at the first side position is a first protruding structure, the protruding structure positioned at the second side position is a second protruding structure, the center distances of two adjacent first protruding structures are first distances in the vertical direction, and the center distances of two adjacent second protruding structures are second distances;
the first protruding structure and the second protruding structure satisfy the following relationship: the ratio of the first protruding structure top area to the second protruding structure top area is less than the ratio of the first distance to the second distance and greater than the square ratio of the first distance to the second distance;
the vibration part transmits vibration energy to the liquid drop through the substrate, and the liquid drop moves from the first side position to the second side position.
7. The method of claim 6, wherein the protruding structures at the first side are identical and the protruding structures at the second side are identical.
8. The method of controlling the direction of movement of a liquid droplet of claim 6, wherein the first side has a first moving energy barrier and a first static contact angle and the second side has a second moving energy barrier and a second static contact angle, the first moving energy barrier being smaller than the second moving energy barrier, the first static contact angle being smaller than the second static contact angle.
9. A method of controlling the direction of movement of a droplet as claimed in claim 8, comprising the steps of:
the liquid drops drop on the protruding structures;
the liquid drops are contacted with the top surfaces of the protruding structures;
the edges of the liquid drops are positioned at the first side position and the second side position;
the first side and the second side are respectively provided with a first moving energy barrier and a second moving energy barrier;
transmitting vibration energy to the liquid drop through the vibration part;
the first moving energy barrier is smaller than the second moving energy barrier;
the vibration energy firstly meets the energy required by the first moving energy barrier, and the first side reaches the moving condition;
the droplet moves from the first side to the second side.
10. The method of controlling the direction of movement of a droplet of claim 9, further comprising the step of:
the liquid drop moves from the first side position to the second side position, and energy obtained by the liquid drop from the vibration part is released;
after the liquid drops release the obtained energy, the liquid drops stop moving;
the droplets remain in contact with the top surface of the protruding structure;
the edges of the drop are located at the new first side and the new second side;
the new first side and the new second side have a new first movement energy barrier and a new second movement energy barrier, respectively;
transmitting vibration energy to the liquid drop through the vibration part;
the new first movement energy barrier is smaller than the new second movement energy barrier;
the vibration energy firstly meets the energy required by the new first moving energy barrier, and the new first side reaches the moving condition;
the droplet moves from the new first side to the new second side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810027396.7A CN108107918B (en) | 2018-01-11 | 2018-01-11 | Device and method for controlling movement direction of liquid drop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810027396.7A CN108107918B (en) | 2018-01-11 | 2018-01-11 | Device and method for controlling movement direction of liquid drop |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108107918A CN108107918A (en) | 2018-06-01 |
| CN108107918B true CN108107918B (en) | 2023-11-17 |
Family
ID=62218580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810027396.7A Active CN108107918B (en) | 2018-01-11 | 2018-01-11 | Device and method for controlling movement direction of liquid drop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108107918B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1603226A (en) * | 2003-09-30 | 2005-04-06 | 朗迅科技公司 | Method and apparatus for controlling the flow resistance of a fluid on nanostructured or microstructured surfaces |
| CN101613075A (en) * | 2009-07-28 | 2009-12-30 | 西安交通大学 | A kind of building method of virtual channel for restricting liquid drop movement |
| EP2618153A1 (en) * | 2012-01-20 | 2013-07-24 | Ortho-Clinical Diagnostics, Inc. | Controlling fluid flow through an assay device |
| WO2014021949A1 (en) * | 2012-07-30 | 2014-02-06 | Unipixel Displays, Inc. | Detecting surface energy indicative of the degree of completion of cross-linking polymerization |
| CN103608658A (en) * | 2011-06-30 | 2014-02-26 | 3M创新有限公司 | Systems and methods for detecting an analyte of interest in a sample using microstructured surfaces |
| CN105550476A (en) * | 2016-01-25 | 2016-05-04 | 大连理工大学 | Stable superhydrophobic surface design method for periodically arranged microcolumn structure |
| CN205899242U (en) * | 2016-04-27 | 2017-01-18 | 浙江工业大学 | Realize equipment on moist surface of gradient of liquid drop self -driven |
| CN107469878A (en) * | 2011-04-13 | 2017-12-15 | 阿科尼生物系统公司 | Sample check system based on microarray |
| CN207992822U (en) * | 2018-01-11 | 2018-10-19 | 广州航海学院 | Control the device of drop moving direction |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI242466B (en) * | 2003-08-29 | 2005-11-01 | Prec Instr Dev Ct Nat | Control device and method for controlling liquid droplets |
| US9279435B2 (en) * | 2008-02-25 | 2016-03-08 | University of Washington through its Center for Communication | Vibration-driven droplet transport devices |
| US20100112286A1 (en) * | 2008-11-03 | 2010-05-06 | Bahadur Vaibhav A | Superhydrophobic surfaces |
| US8632670B2 (en) * | 2010-04-13 | 2014-01-21 | Purdue Research Foundation | Controlled flow of a thin liquid film by electrowetting |
| US8790594B2 (en) * | 2010-04-23 | 2014-07-29 | Georgia Tech Research Corporation | Patterning of surfaces to control the storage, mobility and transport of liquids for microfluidic applications |
| JP2013186272A (en) * | 2012-03-07 | 2013-09-19 | Fuji Xerox Co Ltd | Endless belt for image forming apparatus, endless belt unit, and image forming apparatus |
| WO2015112635A1 (en) * | 2014-01-21 | 2015-07-30 | The Board Of Trustees Of The University Of Illinois | Wettability patterned substrates for pumpless liquid transport and drainage |
-
2018
- 2018-01-11 CN CN201810027396.7A patent/CN108107918B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1603226A (en) * | 2003-09-30 | 2005-04-06 | 朗迅科技公司 | Method and apparatus for controlling the flow resistance of a fluid on nanostructured or microstructured surfaces |
| CN101613075A (en) * | 2009-07-28 | 2009-12-30 | 西安交通大学 | A kind of building method of virtual channel for restricting liquid drop movement |
| CN107469878A (en) * | 2011-04-13 | 2017-12-15 | 阿科尼生物系统公司 | Sample check system based on microarray |
| CN103608658A (en) * | 2011-06-30 | 2014-02-26 | 3M创新有限公司 | Systems and methods for detecting an analyte of interest in a sample using microstructured surfaces |
| EP2618153A1 (en) * | 2012-01-20 | 2013-07-24 | Ortho-Clinical Diagnostics, Inc. | Controlling fluid flow through an assay device |
| WO2014021949A1 (en) * | 2012-07-30 | 2014-02-06 | Unipixel Displays, Inc. | Detecting surface energy indicative of the degree of completion of cross-linking polymerization |
| CN105550476A (en) * | 2016-01-25 | 2016-05-04 | 大连理工大学 | Stable superhydrophobic surface design method for periodically arranged microcolumn structure |
| CN205899242U (en) * | 2016-04-27 | 2017-01-18 | 浙江工业大学 | Realize equipment on moist surface of gradient of liquid drop self -driven |
| CN207992822U (en) * | 2018-01-11 | 2018-10-19 | 广州航海学院 | Control the device of drop moving direction |
Non-Patent Citations (4)
| Title |
|---|
| Droplet Motion on Designed Microtextured Superhydrophobic Surfaces with Tunable Wettability;Fang Guoping等;Langmuir;第24卷(第20期);正文的第11651-11660页 * |
| Pengfei Hao等.Driving liquid droplets on microstructured gradient surface by mechanical vibration.Chemical Engineering Science.2011,第66卷(第10期),正文的第2118-2123页. * |
| 振动诱导微结构粗糙表面水滴Wenzel-Cassie状态转变特性;贾志海等;化工学报;第65卷(第2期);正文的第544-549页 * |
| 液滴在梯度微结构表面上的铺展动力学分析;林林;物理学报;第64卷(第15期);正文的第154705-1至154705-8页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108107918A (en) | 2018-06-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10647570B2 (en) | Fabrication process for a symmetrical MEMS accelerometer | |
| CN207992822U (en) | Control the device of drop moving direction | |
| US20160097642A1 (en) | Mems sensor module, vibration driving module, and mems sensor | |
| CN108107918B (en) | Device and method for controlling movement direction of liquid drop | |
| TW201526666A (en) | Integrated CMOS/MEMS microphone die | |
| CN104838037A (en) | Metal plate, metal plate production method, and method for producing vapor deposition mask using metal plate | |
| US9598310B2 (en) | Apparatus of etching glass substrate | |
| US20130210226A1 (en) | Pattern formation method | |
| WO2016047423A1 (en) | Application method and application device | |
| CN108033129B (en) | A kind of original sheet glass rack | |
| US20230279876A1 (en) | Inertial pumps | |
| US11465401B2 (en) | Ejector device | |
| US3105862A (en) | Jet tray tabs | |
| JP2013035629A5 (en) | ||
| US20170021377A1 (en) | Transfer Printing Plate and Method for Manufacturing the same | |
| CN1213778A (en) | Semiconductor device and method for making the same | |
| CN101834065B (en) | Variable-area capacitive structure capable of adjusting elasticity coefficient of micro mechanical device | |
| JP2021046110A (en) | Drone port | |
| JP5898587B2 (en) | Pattern formation method | |
| KR101589722B1 (en) | Separator having plate for separating oil and gas | |
| KR20190027144A (en) | Superhydrophobic film with Surface Pattern Structure for Low Adhesion and Method for Manufacturing the same | |
| CN110349889B (en) | Batch transfer device for micro chips | |
| KR101645723B1 (en) | Structure of wafer storage | |
| RU2582903C1 (en) | Method for protection of angles of 3d micromechanical structures on silicon plate during deep anisotropic etching | |
| CN114682312B (en) | Silicon-based droplet self-transporting microstructure and transporting method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |