<kbd id="12vh1"></kbd>
      <tfoot id="12vh1"></tfoot>

      Device developed to detect cancer faster with a drop of blood: study

      Source: Xinhua| 2019-02-26 02:04:48|Editor: yan
      Video PlayerClose

      WASHINGTON, Feb. 25 (Xinhua) -- Researchers at the University of Kansas invented a sensitive device that may detect cancer and other diseases quickly from a droplet of blood.

      The study published on Monday in the journal Nature Biomedical Engineering reported the "lab-on-a-chip" device that could detect the tumor cells' exosomes or tiny parcels of their biological information to promote tumor growth.

      Exosomes were previously believed to be "trash bags" used by cells to dump unwanted cellular contents, but scientists came to realize that tumors could send out exosomes packaging molecules that mirror biological features of the parental cells, according to the study.

      The researchers led by Zeng Yong, associate professor of chemistry at the University of Kansas, used 3D nano-engineering method to make the device that can push exosomes into contact with the chip's sensing surface.

      When exosomes are moving closer to the sensor surface, they tend to be separated by a small gap of liquid, but the device managed to enable the contact much more efficiently than before due to its herringbone pattern, according to Zeng.

      Zeng's team developed a nano-porous herringbone structure that can drain the liquid in that gap and bring the particles in hard contact with the surface, a process like draining water in a kitchen sink.

      The researchers tested the chip's design using clinical samples from ovarian cancer patients, and they found that the chip could detect the presence of cancer in a minuscule amount of plasma.

      Also, the chips could be cheap and easy to make, allowing for wider and less-costly testing for a host of other diseases.

      "Almost all mammalian cells release exosomes, so the application is not just limited to ovarian cancer or any one type of cancer," said Zeng. "We're working with people to look at neurodegenerative diseases, breast and colorectal cancers."

      TOP STORIES
      EDITOR’S CHOICE
      MOST VIEWED
      EXPLORE XINHUANET
      010020070750000000000000011105521378499741
      免费国产精品专区,香蕉视频精品小姐福利,强行征服邻居人妻hd高清完整,伊人久久精品无码AV专区 97人人超碰国产精品最新o 亚洲AV无码成人网站国产网站

        <kbd id="12vh1"></kbd>
        <tfoot id="12vh1"></tfoot>