New technology allows you to deliver medications against blood flow

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Scientists have developed nanoparticles that can be used to transport drugs against blood flow.

Previously, the researchers have already represented various options for nanoscopic capsules for the directional delivery of substances at a certain point of the body, but they all moved only «for the flow.» Now the team from the Swiss Higher Technical School of Zurich created magnetic balls with a diameter of 3 μm, consisting of iron and polymer oxide.

During the tests, they were placed in a glass tube with an inner diameter of about as human blood vessels. Liquid also flowed through it. Using a magnetic field, the researchers grouped nanocapsules in «Roy», and then with the help of ultrasonic pulses, they move them against the flow near the walls where it is weaker.

According to scientists, in the future such balls can be used not only for accurate delivery of drugs, but also for carrying out microsurgical procedures.

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