Bandages and plasters, soluble without sediment
American scientists have created a patch that does not require peeling off
Unlike conventional ones, such patches do not require peeling, they decompose directly on the skin and turn into glucose absorbed by the body, according to a press release from the university (Inexpensive, abundant starch fibers could lead to 'ouchless' bandages).
As part of the study of the properties of such a natural polymer as starch, the authors of the work tried to obtain nanofibers from it, but at first it was not possible, since starch does not completely dissolve in water, forming a thick paste. Then, to solve this problem, the researchers added a solvent to the paste, which dissolved the starch in water, but did not destroy its molecular structure.
Then, by electrospinning, which is the process of pulling ultrathin fibers from a liquid medium under the action of an electric field, nanofibers were obtained from a starch solution. Such fibers were woven into a paper-like material, which, according to the authors of the work, can be widely used, primarily in medicine in the form of soluble patches and bandages.
The authors of the study believe that starch "nanobumage" has broad commercial prospects, since starch is a very common polymer in nature, and it itself and the process of obtaining ultrathin fibers from it is relatively cheap. From starch nanofibers, scientists suggest, it will be possible to make toilet paper, disposable handkerchiefs and other similar products that will dissolve without damaging the environment.
The authors have already received a preliminary patent for their invention.
Portal "Eternal youth" http://vechnayamolodost.ru05.05.2012