Natural materials make it possible to store the vaccine record for a long time
Silkworms prompted scientists a way to store vaccines, which is very important for countries with hot climates. According to statistics, an infection that can be prevented through vaccination, kill millions of children in poor countries. Often at the grim statistics are commonplace everyday problems. For example, the lack of good refrigeration, says New Scientist.
It is in these vaccines should be stored to slow down the rate of decomposition of biologically active molecules. Fibroin, protein in silk, is capable of forming strong sheets with small pockets. The surface is covered with pockets of these molecules to repel water.
That is to put in the pockets of biologically active molecules, dissolving them in the gut with water and then dried. So a film. Once the molecule is in a pocket, it is not in danger.
David Kaplan and colleagues at Tufts University produced such films using a live measles, mumps and rubella, contained in one vaccine. The experiments showed that films can keep the virus within six months, even in temperatures of 45 degrees.