The new "detection pen" can quickly confirm whether human tissue is cancerous
September 11, 2017 Source: Xinhua News Agency
Window._bd_share_config={ "common":{ "bdSnsKey":{ },"bdText":"","bdMini":"2","bdMiniList":false,"bdPic":"","bdStyle":" 0","bdSize":"16"},"share":{ }};with(document)0[(getElementsByTagName('head')[0]||body).appendChild(createElement('script')) .src='http://bdimg.share.baidu.com/static/api/js/share.js?v=89860593.js?cdnversion='+~(-new Date()/36e5)];American scientists have invented a pen-sized detection tool that can confirm whether human tissue is cancerous within 10 seconds, with an accuracy rate of over 96%. This method is expected to help doctors accurately remove tumors during cancer surgery.
Researchers at the University of Texas at Austin reported in a new issue of the academic journal Science Translational Medicine that the tool they developed was called MasSpec Pen, which was 150 times faster than the current technology. It can be used to confirm the tumor range in the operation, which can prevent the recurrence of cancer and prevent the cancer from recurring. On the other hand, it can also reduce the damage to healthy tissues.
The tool is very simple to use, just hold the test pen and gently press it on the tissue for 3 seconds. The “pen tip†will seep out a drop of water, absorb the molecules of proteins, lipids and metabolites released by the cells, and then suck the water droplets. Perform mass spectrometry in the pen and transfer the data to the computer.
Normal cells release different molecular combinations compared with cancer cells, and the computer analyzes the molecular "fingerprints" and displays the results on the screen. Using this method, the researchers examined 253 samples of human tissue, including healthy tissue and cancerous tissues of lung, breast, thyroid, and ovarian cancer. The results showed that this method can perform analysis quickly and accurately with an accuracy of over 96%.
Since the tissue to be tested is only in contact with the plastic nib and water droplets, the tool does not cause damage to the tissue. The researchers also conducted animal experiments, and the results showed that the rats were not exposed to obvious tissue damage and mental stress during the test. The researchers plan to begin using the tool in clinical trials in 2018.
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