DESIGN OF MULTICHANNEL POTENTIOSTAT CIRCUITS AS ELECTROCHEMICAL MEASURING DEVICE FOR TROPONIN I BIOMARKER DETECTION
Electrochemical methods are often used to perform analysis on various biochemical reactions. The problem raised in this final project is the need for an electrochemical measuring instrument for the detection of Troponin I biomarkers. One of the tools for carrying out electrochemical measurements...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/80514 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Electrochemical methods are often used to perform analysis on various
biochemical reactions. The problem raised in this final project is the need for an
electrochemical measuring instrument for the detection of Troponin I biomarkers.
One of the tools for carrying out electrochemical measurements is a potentiostat.
To design a complete potentiostat system, a potentiostat analog circuit is needed.
This analog circuit will be connected directly to the electrodes or in this case a
screen-printed carbon electrode (SPCE) will be used. The analog potentiostat
circuit itself includes a buffer circuit, summing amplifier, tranimpedance amplifier
and voltage regulator. The implementation of the potentiostat analog circuit itself
starts from making a schematic and selecting components. Then, the potentiostat
analog circuit will be simulated on LTSpice before later being prototyped on the
breadboard. Prototypes for a series of potentiostats were made in stages from one
channel to multi-channels. After the trial process, then the analog potentiostat
circuit will be combined on the dot matrix PCB with other control unit components,
so that it becomes a complete potentiostat circuit. |
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