The United States successfully developed a new device for testing diabetes with teardrops
Release date: 2006-08-28 The United States successfully developed a new device for testing diabetes with teardrops ---------------------------------------- ----------------------------------------
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The University of Central Florida has developed a new device that uses teardrops to test a person's blood sugar levels and is about to test for diabetes, which saves the pain of measuring blood sugar every day.
The device contains a sodium chloroaurate solution that, when contacted with sugar molecules, produces detectable gold nanoparticles. Human blood, urine or tears contain glucose, but the latter is the best.
The amount of gold nanoparticles emitted can directly reflect the aggregate concentration of glucose, which can be measured by using a CD size device, an ultraviolet visible spectrophotometer. The chemical reaction between the gold molecule and the sugar molecule is visible: depending on the concentration of the sugar molecule, the solution changes from pink to blood red.
With the significant decline in the labor intensity of modern humans and changes in eating habits, the incidence of diabetes is rapidly rising. According to the latest statistics of the World Health Organization, there are 125 million people with diabetes in the world, and an average of 6 people die every minute due to diabetes. The death has already ranked fifth in the cause of death in the world today.
—— Information from: Kexun