DNA Detection Method Expands Frontiers of Bioengineering

Researchers at UMass Amherst have developed a novel technique for DNA detection with exceptional sensitivity, expanding the frontiers of biomedical engineering.

Jinglei Ping, the study’s lead author, explained that “DNA detection is in the center of bioengineering. Everyone wants to detect DNA at a low concentration with a high sensitivity. And we just developed this method to improve the sensitivity by about 100 times with no cost.”

Traditional detection techniques might produce inaccurate results since there are many molecules in a sample that are not the target DNA.

However, this approach is unique because an alternating electric field is set up around the test subject. After that, “We let the DNA dance,” said Ping. “When the strands of DNA dance, they have a specific oscillation frequency.” As a result, it is simple to differentiate it from other motions patterns.

Due to the fact that this process is entirely electric, making it ideal for point of care. “Usually, we provide samples to a lab and they can provide the results quickly or slowly, depending on how fast they go, and it can take 24 hours or longer.”

Its compact size, which is comparable to that of a blood sugar test kit, is another advantage that gives it potential to advance global health outcomes.

“It can be used at places where resources are limited. I went to a country and the doctor usually goes to a village once or twice a year, and now, maybe they can have a base that has this kind of tool and they’ll have the chance to test for it quickly and easily.”

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