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China Education Equipment Purchasing Network News: According to the "Science and Technology Entrepreneurship" report, because humans are at the high end of the food chain, the accumulation of heavy metals in the human body is higher than other animals. In response, researchers at the University of Cincinnati have developed the first lab-on-a-chip sensor that can quickly detect the content of manganese in the human body.
Source: University of Cincinnati, USA
The first laboratory chip sensor, which can provide rapid detection of heavy metal levels in the human body, will be the first field test next year.
This sensor chip can quickly respond to the heavy metals in the human body-especially manganese-and its content. The chip is inexpensive and is a disposable environmentally friendly product. The researchers plan to conduct the first test of the device in 2012 to study the potential health effects of heavy metals. They expect this product to be used in clinical testing and research on a large scale, such as nutrition testing for children.
The technology used in this sensor is called anodic stripping voltammetry (anodic stripping voltammetry), which combines the working electrode, reference electrode and auxiliary electrode into one. The researchers developed a thin film made of bismuth to replace the traditional mercury electrode or carbon electrode, avoiding the limitation of hydrolysis caused by the sensor to capture negatively charged metals.
Ian Papautsky, one of the developers and associate professor of electronic computing engineering at the University of Cincinnati, said that the traditional blood heavy metal manganese content test requires a 5 ml blood sample, and this chip only requires 1, 2 drops It suffices to be an advantage for children ’s testing. In addition, the electrode of the chip uses bismuth to replace the traditional mercury, reducing the environmental hazards. The most important thing is that the results of traditional heavy metal testing often need to wait 48 hours. In some remote high-risk areas, it is quite difficult to quickly detect the heavy metal content in the human body. This lightweight detection chip is much more convenient- -Not only portable and available everywhere, the test process takes only 10 minutes, which is quite fast.
Therefore, researchers are very optimistic about the application potential of this chip in point-of-care. With further research and development, this chip is even expected to be used as a self-test mechanism. For example, to help people with diabetes to monitor blood sugar.
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