Method for operating nano matters
A kind of material and nanotechnology, applied in the direction of nanotechnology, nanotechnology, nanostructure manufacturing, etc., can solve the problems of easy clogging of membranes, high voltage, and difficulty in effective manipulation of nanomaterials
Inactive Publication Date: 2014-04-16
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
View PDF13 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
These methods usually have strict requirements on the working environment. For example, the particles need to be charged, the required voltage is high, magnetic particles are required as carriers, and the transparency and refractive index of the captured particles are required. value, etc., the membrane is easy to clog, etc.
Moreover, most of these methods can only provide static manipulation of nanomaterials, and cannot effectively perform dynamic manipulation.
Ultrasonic separation technology is mainly based on the manipulation of micron matter based on the force of acoustic radiation, and it is difficult to effectively manipulate nano matter
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0013] The specific surface area (surface area / volume) of microparticles is small, that is, the surface area is relatively small, but the volume is relatively large; nanoparticles and microparticles are just the opposite, and their specific surface area is large, that is, the surface area is relatively large, while the volume is relatively large. Small. The magnitude of the acoustic radiation force increases with the volume of the micro-nanoparticles, while the acoustic viscous force caused by the acoustic flow increases with the increase of the surface area of the micro-nanoparticles. Therefore, the use of acoustic flow is preferred over acoustic radiation forces when manipulating nanomaterials.
[0014] The technical solution of the invention will be described in detail below in conjunction with the accompanying drawings.
[0015] The device used in the method of manipulating nano matter in the present invention includes a Langevin vibrator 1 and an ultrasonic needle 2 wh...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a method for operating nano matters. According to the method, by using the ultrasound operation, nano matters in a turbid liquid is moved and rotated to pointed position and direction. According to the method, the root part of a needle is subjected to the ultrasound excitation by using a Langevin vibrator to bend and vibrate; an acoustic flow flowing to the needle point is formed in the solution at the periphery of the needle point to drive the nano matters to flow towards the needle point and rotate a nano line to the flow direction of the acoustic flow, so that the nano matters are effectively operated. The ultrasound needle in the invention is simple in structure and easy to operate.
Description
technical field [0001] The invention relates to a method for manipulating nano-materials, which belongs to the fields of nano-manufacturing, nano-control and biosensing, and in particular relates to a method for manipulating nano-materials by using acoustic flow. Background technique [0002] Controlling the motion of nanomaterials is a promising new technology, which has a wide range of applications in the fields of nanomedicine, nanochemistry, nanoelectronics, nanomaterials and nanobiology. In recent years, controlling the movement of nanomaterials has attracted more and more attention in many fields such as nanofabrication, biosensing, and microelectronic device manufacturing. Due to its unique nano-effects, nanomaterials have great difficulty in motion control. Existing methods to control the movement of nanomaterials include electrophoresis, magnetic separation, mechanical separation, optical tweezers, dielectrophoresis, and membrane separation. These methods usually ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): B01J19/10B82B3/00
Inventor 胡俊辉李华清周玉杰李宁
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS