Nano-material electrode modification based electrochemical integrated digital micro-fluidic chip

A digital microfluidic and nano-material technology, applied in the field of micro-analysis chips, can solve the problems of reducing the sensitivity of electrochemical detection methods, small size of integrated electrochemical electrodes, weakening electrochemical integration, etc., to achieve enhanced electrochemical detection capabilities, high-pass Quantitative modification, to achieve micro-accurate control of the effect of modification

Inactive Publication Date: 2013-06-26
FUDAN UNIV
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Problems solved by technology

Although these two chips have realized the integration of electrochemical detection on the microfluidic chip, they still have the disadvantages of relatively complex chip structure and not easy to manufacture. More importantly, due to the size limitation of

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  • Nano-material electrode modification based electrochemical integrated digital micro-fluidic chip
  • Nano-material electrode modification based electrochemical integrated digital micro-fluidic chip

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Embodiment Construction

[0029] The electrochemically integrated digital microfluidic chip based on nanomaterial electrode modification provided by the present invention includes electrochemical function integration, special structural configuration and functional electrode modification. It should be noted that this embodiment is provided for illustrative purposes and is not intended to limit the scope of the present invention in any way.

[0030] The schematic structural diagram of the electrochemically integrated digital microfluidic chip based on nanomaterial electrode modification according to the present invention is as follows: figure 1shown. On the insulating substrate 100 are the digital microfluidic driving electrodes E1-E4 and integrated electrochemical electrodes E5-E7 of the chip of the present invention, wherein the electrochemical electrodes E5-E7 are embedded in the driving electrode E3, surrounded by E3 but electrically insulated. It should be noted that the material used as the subst...

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Abstract

The invention belongs to the technical field of micro-fluidic analysis chips, and concretely relates to a nano-material electrode modification based electrochemical integrated digital micro-fluidic chip. The electrochemical integrated digital micro-fluidic chip treats a digital micro-fluidic chip as a base and integrates an electrochemical-sensing micro-electrode, an electrochemical electrode is embedded in the control electrode of the digital micro-fluidic chip, and all the electrodes are positioned in a same plane of the chip. The nano-material modification of the electrochemical sensing electrode is realized through the micro-fluidic automatic control in order to enhance the electrochemical sensing capability of the micro-fluidic chip. The nano-material electrode modification based electrochemical integrated digital micro-fluidic chip has the advantages of novel design, high integration level, convenient making, high automation degree, strong detection capability, realization of the micro-scale, rapid and sensitive detection, and substantial widening of the application ranges of the electrochemical sensing and digital micro-fluidic fields.

Description

technical field [0001] The invention belongs to the technical field of microanalysis chips, and in particular relates to an electrochemically integrated digital microfluidic chip based on nanometer material electrode modification. Background technique [0002] Lab-on-a-Chip (LOC), also known as Micro Total Analysis System (Miniaturized Total Analysis System, μ-TAS), its simple definition refers to the ability to complete various biochemical processes, miniaturize and integrate complex functions that can automatically complete traditional laboratory tasks The goal of a modernized MEMS system is to integrate a complete analysis process on a single device, which can complete operations such as sample extraction, sample pretreatment, decomposition and separation, biochemical reactions, analysis and detection, and data processing. As an emerging technology, lab-on-a-chip has attracted more attention since it was proposed. It has many advantages such as high integration, high prec...

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Application Information

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IPC IPC(8): B01L3/00G01N27/416
Inventor 余玉华陈建锋周嘉
Owner FUDAN UNIV
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