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Researchers from the Institute of Chemistry of the University of Brasília (UnB) have developed a method for the production of hypoallergenic latex, used in the manufacture of condoms, surgical gloves, catheters and catheters. Other items. In addition to not causing allergies, the products may be more resistant. The process has already been patented
. What researchers have developed has been a way to inactivate allergenic proteins in natural rubber latex. "The latex is a very rich biological medium, we have more than 200 different kinds of proteins.However, 13 of them are allergens and can be harmful to health.When it is d & # 39; use the catheter in the position of contact very close to the mucosa, if the person is allergic can have anaphylactic shock and reach death, "says Professor Floriano Pastore Júnior, who directs research at the Institute of Chemistry from the institution.
In previous experiments, the proteins were removed from the latex to avoid allergy. "Instead, we switched to a different approach because we saw that Protein removal removed resistance from films made with latex, so the way to avoid this effect was to not remove proteins and block their action, which was made using tannin, made from tea from the bark e of black acacia, tannin is used in the tanning of animal skin, to turn it into leather.
"We used the chemical reaction of tannin with leather proteins to protect the proteins from the latex." These proteins stay with a layer of vegetable tannin and do not grow. more allergic reactions, "said Professor
Tests
Tests conducted in London have shown that latex resistance was not lost in the new process. underway in laboratories in Brazil and other countries like the United States.Although there is no delay in the adoption of the method and its use by society as a whole, it is expected that this will happen.
In 1997, the American Society of Anesthesiology (ASA), the American Society of Anesthesiologists (ASA), and the American Society of Anesthesiology (ASA). The American Association of Anesthesiologists (ASA) estimated that 8% of the general population suffers from latex allergy.The number is much higher, when one observes groups that live daily with the material. , patients with Spina bifida who require multiple and frequent catheter surgeries Bladder erism and health professionals such as doctors, dentists and nurses are included. In this case, the incidence rate of the problem reaches 20%.
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