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A cheap and light smartphone DNA detector can now be used to instantly locate DNA in blood, urine, and other samples.
Currently, DNA testing is being done in laboratories that use expensive and specialized equipment.
To make this process faster and cheaper, Ming Chen of the Chinese Army Medical University and colleagues developed a portable DNA detector made from 3D printed parts connected to
The device can detect DNA based on distinct mutations or short genetic sequences.
It costs less than $ 10, weighs just 60 grams, and takes 80 minutes to produce a result.
DNA fingerprinting
The detector is powered by heat from the smartphone.
Samples can be loaded into the detector and mixed with pre-filled chemicals that light up or change color if there is any DNA that matches.
The signals are detected through the smartphone’s camera lens and a lightbox displays the result.
Tests showed that the device can detect genetic conditions like alpha- and beta-thalassemia in blood.
It also identified people with a gene that makes them more susceptible to alcohol intoxication from swab samples taken from their inner cheeks.
coli bacteria in urine, milk, and river water.
Smartphone-powered device tests blood samples for genetic conditions
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