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Microelectrode biosensor using dielectrophoresis and method for detecting biological material by using same

A biosensor, dielectrophoresis technology, applied in dielectrophoresis, chemical instruments and methods, material analysis by electromagnetic means, etc., can solve problems such as increased voltage intensity, increased voltage intensity, and biomolecular damage

Pending Publication Date: 2021-03-19
XYZ PLATFORM INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] However, if the biosensor utilizes dielectrophoresis phenomenon, if the voltage intensity applied to obtain the dielectrophoretic effect increases, it may cause damage to biomolecules
[0010] Also, in consideration of commercializing IDE sensors for use as health management sensors for diagnosing diseases or making them portable, increasing the voltage intensity in order to obtain dielectrophoretic effects will cause another problem

Method used

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  • Microelectrode biosensor using dielectrophoresis and method for detecting biological material by using same
  • Microelectrode biosensor using dielectrophoresis and method for detecting biological material by using same
  • Microelectrode biosensor using dielectrophoresis and method for detecting biological material by using same

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Embodiment Construction

[0048] Hereinafter, embodiments of the present application will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art to which the present application pertains can easily implement. However, the present application can be implemented in various forms and is not limited to the embodiments described here. In the drawings, parts irrelevant to the description are omitted to clearly describe the present application.

[0049] Throughout the specification of the present application, saying that a certain part "includes" a certain component means that other components may be additionally included without excluding other components, unless there is an explicit statement to the contrary.

[0050] The terms "about", "substantially" and the like used throughout the specification to express degrees include inherent manufacturing and material tolerances, mean equal to or close to the value, and in order to facilitate the understanding ...

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Abstract

A biosensor of the present invention comprises a first microelectrode and a second microelectrode, each provided in the form of a hair comb and disposed in an alternating fashion on a substrate; and aplurality of receptors fixed in a space between the microelectrodes and reactive specifically to a target biological material, wherein, in particular, a micropattern made of a conductive material isformed in the space between the microelectrodes. Accordingly, the biosensor of the present invention can obtain a larger magnetic field strength than a biosensor with no micropattern, and can concentrate the target biological material even more efficiently with a dielectrophoretic force. Furthermore, the biosensor can protect biological molecules from damage by reducing the strength of voltage fordielectrophoresis, and can be easily applied, such as being commercialized as a healthcare sensor for disease diagnosis.

Description

technical field [0001] The present invention relates to a biosensor, and more specifically, to a microelectrode biosensor using dielectrophoresis and a biomaterial detection method using the same. According to the biosensor, a specific reaction with a target biomaterial is formed between the microelectrodes The receptors based on the dielectrophoresis phenomenon can increase the probability of specific reaction with the target biological material, thereby improving the sensitivity and detection width of the sensor. Background technique [0002] In recent years, many biosensors have been developed that detect the presence and concentration of various biological materials such as genes and proteins electrically. [0003] One example is the use of interdigitated electrodes (IDE: Interdigitated Electrode), because the area where the receptors that specifically bind to biomaterials is fixed in a zigzag shape is substantially very wide, and it can be accurately completed even when...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/327G01N27/447G01N33/543
CPCG01N27/3276B03C5/005G01N33/5438B03C2201/26B03C5/026B03C2201/24G01N27/44717G01N27/327G01N27/447G01N33/54366G01N27/44791
Inventor 黄教善金彗珍
Owner XYZ PLATFORM INC
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