Technology allows you to print biomaterials in deep tissues using ultrasound, opening ways to target drug delivery, tissue life change and even “suturing” internal wounds without invasive surgery.
The team of researchers under the leadership of the California Technological Institute created the 3D way of printing polymers directly within the living organism.
Previous methods of printing in the body used infrared light, with a limited penetration depth, slightly lower than the skin. The new technology called DIS provides you to locally increase the temperature in the selected area of the body by 5 ° C to activate the polymerization process -the binding of molecules in three -Dymensional structures.
To do this, scientists used liposomes – small fat capsules, filled with special agents for stitching polymers. When the ultrasound eats the desired zone, the agent releases the agent, and the printing occurs in this area. The injection also includes monomers, a contrast ingredient for recollection and a payload, such as, for example, drugs or cells. Ultrasonic images allow you to accurately monitor where the printing occurs, because at the time of polymerization the image contrast is due to the used gas capsules from the bacteria.
The procedure has been tested on mice: polymers with a chemotherapeutic drug with doxorubicin are printed near the bladder tumor. As a result, there has been greater destruction of cancer cells compared to the usual injection of drugs.
Technology allows not only to print gels for the delivery of drugs and cells, but also to create conductive polymers for monitoring life -consuming, for example, as in electrocardiograms. In the future, scientists plan to improve the disp using artificial intelligence, which will give you to autonomously print in motion -for example, within the heart.
The next step is to test large animals, and in the future, perhaps in public.
The study was published in the Journal Science.
We remind you, earlier it was reported that scientists have developed an ecological method for plastic splitting.
Scientists have created the first environmental technology for applying silver to electronics
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Source: korrespondent
I am Ben Stock, a passionate and experienced digital journalist working in the news industry. At the Buna Times, I write articles covering technology developments and related topics. I strive to provide reliable information that my readers can trust. My research skills are top-notch, as well as my ability to craft engaging stories on timely topics with clarity and accuracy.