After the vaccination injections can not! Japanese researchers at Osaka University on "biological materials" magazine reported that they had developed a soluble latest micro-needle stick in the skin, compared to the standard vaccine injection, new ways to make vaccination easier and more secure, less painful.

Most vaccines are inoculated subcutaneously or intramuscularly, although this method can effectively serve human vaccine, but the medical staff need to have professional skills, but there is a risk due to the use of needles and cause infections or injuries. The new micro-needle posted by soluble material, to avoid the risks associated with needle brings, and easy to operate without the help of trained medical personnel, which makes it very suitable for developing countries with limited medical resources widely used.

According to physicist organizational network recently reported that this was named MicroHyala microneedles paste can dissolve in water. Microneedle is made of hyaluronic acid, which is a joint may cushion the natural substances. When the patch is applied on the skin, the microneedles will pierce the outermost layer of the skin, together with a vaccine into the body to dissolve.

The researchers separately by conventional injection and micro-needle stick by way of vaccine delivery for two volunteers immunized against A / H1N1, A / H3N2 and B influenza virus vaccine. No adverse reactions volunteers, show microneedles stickers can be applied to human security.

Comparison was also found that the use of microneedles paste volunteers appeared with inoculation equivalent even stronger immune response. One author of the paper, professor at Osaka University Nakagawa Shinsaku (phonetic) said: "We are very pleased to see that our new micro-needle stick and injection influenza vaccine as effective, and in some cases even better."

Previous studies had silicon or metal material microneedles were assessed and found that they are not secure, there is a risk of fracture, small fragments will remain in the skin. The new micro-needle stick is designed to be dissolved in the skin, it eliminates this danger. Nakagawa said: "We have shown that the microneedles paste is safe and works well because it is painless, non-trained people are very easy to use, we think this may give way to bring major global vaccination. change.