New nanosite improve the drug delivery and wound healing
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Nanosite save from the bacteria.
Currently, scientists are increasingly talking about the dangers . However, if before the balance in this fight was leaning in the direction pharmacists now more and more organisms started to adapt faster. And we need to change not only the approach to the creation of new types of antibiotics, but also to change principles of drug delivery. One of them could become the newest nanosite, which not only kills bacteria more effectively, but also provides the healing of wounds.
How it works nanosite for drug delivery?
Researchers from Flinders University and colleagues in Japan have created a special nanosec. The size of the nano grids is 20 centimeters long and 15 centimeters in width. The same woven mesh of fibers with thickness of 200 nanometers. Inside the fiber mesh is a hollow core filled with negatively charged gold nanoparticles and the antibiotics colistin and vancomycin.
To deliver the antibiotics in a certain area of the grid, the gold particles were embedded in it using a method called «electrospinning» (approx. ed electrospinning — it is a method of producing fibers as a result of electricity on a charged jet of polymer solution). Because of this, we can create new and more effective medicines. — say the authors.
But what's the advantage of this approach? Actually it's pretty simple: a small charged gold nanoparticles regulate the release of antibiotics from nanosec. The addition of nanoparticles causes the antibiotic «migrate» to the center of each fiber (which is very much in the structure of the grid), that enables you to evenly distribute the release of antibiotic from nano grids across the surface. Thus, the whole is subjected to a one-time «attack», which greatly increases the efficiency. If you are interested in this topic — . There regularly appear, which are not found on the website.
The Effectiveness of the invention was tested on laboratory animals within 14 days. The researchers examined how the drugs can affect the growth of E. Coli (Escherichia coli). Point the action of the drug will significantly reduce the concentration of antibiotics for effective destruction of bacteria. That is, in the course of the experiment for the destruction of bacteria took much less drugs «on the grid» than if researchers used traditional methods of introduction.
Experts are Now focusing on improving its technology. First, they try to learn other types of metals that could replace gold in the structure nanosec. And it's not even that gold — it is a precious metal. It is possible that other metals or their alloys will allow even more precise control of the flow of drugs.
Secondly, the scientists and being tested . But these problems should not arise. In theory, the net «fill» any medication. It is worth noting that this grid — indeed a very promising means of therapy. Apart from the very obvious use on open wounds on the skin, it is possible to try and for abdominal operations. In addition, a more effective antibiotic and also reduces the time of wound healing, reducing the likelihood of relapse.
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