Análise da atividade antibacteriana de acabamento com nanopartículas de prata para naotecidos utilizados em fraldas geriátricas

Abstract

Pressure ulcers, popularly known as bedsores, occur due to lack of adequate blood supply to the body, the pressure exerted on the subcutaneous tissue can result from factors such as pressure, shear stress, friction or compression. Prevention is the best method to avoid this type of injury. The elderly and bedridden are the group that suffer most from these wounds, due to their lack of mobility. The use of disposable geriatric diapers is often necessary, and with daily use, urine and feces in contact with the skin can cause the wound to enlarge, with an increase in the proliferation of bacteria in the environment, making it difficult for the wound to heal. Based on this context, this work aimed to address the application of a functional textile finish, using silver nanoparticles and sodium alginate through the padding process, with the aim of analyzing the nonwoven, evaluating the ability to improve the antimicrobial action of the materials, without significantly influence the basic properties that the geriatric diaper already has. The results obtained from the antimicrobial action against the bacteria s. aureus and K. pneumoniae, were positive, being more satisfactory for the second. Regarding the absorption rate of the functionalized samples, it was observed that there was a considerable deterioration in absorption, with an improvement in its capillarity rate.