Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

High-sensitive biochemical sensor based on resonance oscillation type micro cantilever beam structure

A technology of biochemical sensors and micro-cantilever beams, which is applied in the fields of MEMS, biomedicine and chemical engineering, can solve the problems of increasing system volume and cost, and achieve the effects of eliminating changes in elastic constants, improving detection limits, and high sensitivity

Active Publication Date: 2014-04-09
INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the commonly used optical detection has the advantage of high sensitivity, the optical components will increase the size and cost of the system

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High-sensitive biochemical sensor based on resonance oscillation type micro cantilever beam structure
  • High-sensitive biochemical sensor based on resonance oscillation type micro cantilever beam structure
  • High-sensitive biochemical sensor based on resonance oscillation type micro cantilever beam structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0039] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0040] The invention provides a high-sensitivity biochemical sensor based on a resonant micro-cantilever structure, which can measure biochemical molecules with high sensitivity and high precision by adopting a micro-cantilever structure with a micro-column structure 3, a liquid storage tank 4 and a liquid leakage hole 5 at the front end.

[0041] Such as figure 1 as shown, figure 1 is a structural schematic diagram of a highly sensitive biochemical sensor based on a resonant micro-cantilever structure according to an embodiment of the present invention, figure 2 for figure 1 sectional view. The single cantilever beam sensing device includes a resonant cavity, a cantilever beam and a Whist bridge detection circuit. W...

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

PropertyMeasurementUnit
Resonant frequencyaaaaaaaaaa
Sensitivityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a high sensitive biochemical sensor based on a resonance oscillation type micro cantilever beam structure. The biochemical sensor comprises a resonance oscillation chamber, a cantilever beam and a Whist bridge type detection circuit, wherein a micro column structure (3), a liquid storage tank (4) and a liquid leakage hole (5) through which biochemical solution flows are etched at the free end of the cantilever beam; the support end of the cantilever beam is connected with the Whist bridge type detection circuit; the Whist bridge type detection circuit is composed four U-shaped piezoresistance bars (1), three input electrodes (8, 9, 10) and two output electrodes (7, 11); and the four piezoresistance bars (1) are connected with the input electrodes (8, 9, 10) and the output electrodes (7, 11) through a signal transmission line (2). With the adoption of the biochemical sensor, micro biochemical molecules can be sensed with a high sensitivity by detecting the frequency change after an object to be tested is absorbed; biochemical molecules with micromass can be detected; and the biochemical sensor can be widely used in engineering fields such as medicine and chemistry.

Description

technical field [0001] The invention relates to the fields of MEMS, biomedicine and chemical engineering, in particular to a highly sensitive biochemical sensor based on a resonant micro-cantilever beam structure. Background technique [0002] Since the 1970s, resonant sensors have developed rapidly on the basis of electronic technology, testing technology, computing technology and semiconductor integrated circuit technology. 【1】 . With the rapid development of MEMS technology, the size of resonant sensors has been reduced to micron, submicron or even nanometer level, which can perform high-precision measurement of various physical quantities such as temperature, thermal energy, magnetic field and mass, so it is widely used in chemical analysis. , biological testing, pharmaceutical screening and environmental monitoring and other fields. [0003] In recent years, research on high-sensitivity biochemical detection based on the micro-cantilever structure has become a researc...

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
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01N5/02
Inventor 杨晋玲王帅鹏王晶晶杨富华
Owner INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com