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System and method for controlling and selecting granules on basis of structural sound field

A structural sound field and particle technology, which is applied in individual particle analysis, particle and sedimentation analysis, particle size analysis, etc., can solve the problems of inability to process micro-nano particles in batches, and achieve the effects of not being easily disturbed by external factors, high reliability, and improving efficiency

Active Publication Date: 2013-07-17
深圳中科乐普医疗技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing technology either processes individual particles or particles flowing through the sound field separately. This sorting method determines that this screening technology cannot process micro-nano particles in batches and cannot process batches of particles in parallel.

Method used

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  • System and method for controlling and selecting granules on basis of structural sound field
  • System and method for controlling and selecting granules on basis of structural sound field
  • System and method for controlling and selecting granules on basis of structural sound field

Examples

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Embodiment 1

[0036] Such as Figure 1 to Figure 3 As shown, one embodiment of the system for manipulating and screening particles based on the structural acoustic field of the present application includes a sample table, an ultrasonic emitting device and an artificial structure. The sample table is used to hold particles to be screened, and the ultrasonic emitting device is used to emit ultrasonic waves. , the artificial structure is a periodic structure, which is used to modulate the sound field to generate stronger acoustic radiation force, and to screen the particles to be screened.

[0037] In one embodiment, the sample stage is a sound-transmitting phantom made of gel, and its height can be set as required. In this specific embodiment, the height of the sample stage is 4 cm.

[0038] In one embodiment, the ultrasonic transmitting device includes a signal generator, a power amplifier and an ultrasonic transducer, the signal generator is used to generate a transmitting signal, and the ...

Embodiment approach

[0045] Such as Figure 4 As shown, the method for manipulating and screening particles based on the structure acoustic field of the present application, an embodiment thereof, comprises the following steps:

[0046] Step 402: Place the particles to be screened on the sample table, and set the artificial structure above the sample table; in this embodiment, the particles to be screened can be selected from tiny glass balls, specifically pickling beads produced by Sigma-Aldrich. The glass microspheres G4649-100G, G1145-100G and G8772-100G. The diameters of these three glass microspheres are <106 μm, 150-212 μm and 425-600 μm, respectively.

[0047] Step 404: the ultrasonic emitting device emits ultrasonic waves;

[0048] Step 406: The artificial structure regulates the sound field;

[0049] Step 408: The artificial structure screens the particles to be screened based on the acoustic radiation force generated by the modulation. The artificial structure can adsorb the screened...

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Abstract

The invention discloses a system for controlling and selecting granules on basis of the structural sound field. The system comprises a sample table, an ultrasonic emitter and a manual structure. The sample table is used for storing to-be-selected granules, the ultrasonic emitter is used for emitting ultrasonic waves, and the manual structure is a circular structure and is used for modulating the sound field to generate stronger sound emissive power and to select the to-be-selected granules. The invention further discloses a method for controlling and selecting granules on basis of the structural sound field. The system comprises the sample table, the ultrasonic emitter and the manual structure, the ultrasonic emitter is used for emitting ultrasonic waves, the manual structure is a circular structure and is used for selecting the to-be-selected granules, a plurality of granules can be placed on the sample table, the manual structure can be used for modulating the sound field to generate stronger sound emissive power and can capture specific granules on the lower surface of the manual structure, so that the granules can be rapidly and massively selected and efficiency is improved.

Description

technical field [0001] The present application relates to acoustic wave manipulation technology, in particular to a system and method for manipulating and screening particles based on a structural acoustic field. Background technique [0002] The research and development of micro-manipulation technologies for single atoms or macroscopic substances have had a major impact on biology, quantum optics, soft matter physics, biophysics and clinical medicine. Micro-manipulation technology not only provides an important research method for studying the basic mechanical, physical and biochemical properties of tiny particles such as metals, cells, and DNA, but also provides a necessary tool for the development of new biochemical analysis instruments for the screening of biological particles such as cells and platelets. technical support. The development of accurate, reliable, and low-cost control devices for tiny particles has become one of the frontier directions that has attracted ...

Claims

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Application Information

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IPC IPC(8): B07C5/34G01N15/02G01N15/10
CPCB07C5/34B07C2501/0027
Inventor 郑海荣蔡飞燕李飞孟龙王辰
Owner 深圳中科乐普医疗技术有限公司
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