Nanoparticles will stop old age. Free Technical Library News

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Nanoparticles will stop old age

19.10.2012

A team of Spanish scientists have developed "smart" nanoparticles that could potentially be used to combat the symptoms of aging.
Specially designed nanoparticles can selectively release drugs in old human cells. The potential of this technology is very large: it can cope with such ailments as cancer, cell degeneration, Alzheimer's, Parkinson's, etc.

"Smart" mesoporous silicon nanoparticles contain galactooligosaccharides that prevent drug release in young healthy cells and release it in aging cells. In other words, for the first time, scientists have been able to create a "guidance system" that directs the drug precisely to the degenerative cells that cause various diseases.

During the experiments, the researchers have already evaluated the effectiveness of new nanoparticles. In particular, it was possible to influence old cells that secrete beta-galactosidase, an enzyme that is characteristic of aging cells. Scientists have developed special nanoparticles that "target" this enzyme, thus detecting old cells and destroying them, opening the way for self-rejuvenation of the body.

Cellular aging is a physiological process that eliminates too old and damaged cells that do more harm than good to the body. When a person is young, the mechanisms of aging prevent many diseases, such as the development of tumors. The problem is that with age, there are more and more aging cells - they accumulate in organs and tissues, disrupting the normal functioning of the body. The discovery of Spanish scientists shows that medicine can use a targeted effect on old cells: treat them or destroy them.

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