Pesquisadores desenvolvem tecido que neutraliza novo coronavírus

Tecido já está chegando ao mercado Rovena Rosa/ Agência Brasil

Pesquisadores do ICB (Instituto de Ciências Biomédicas) da USP (Universidade de São Paulo), da Universitat Jaume I, da Espanha, e do CDMF (Centro de Desenvolvimento de Materiais Funcionais) desenvolveram um tecido capaz de inativar o coronavírus SarS-CoV-2, agente causador da covid-19. O projeto teve ainda a participação de equipe da empresa Nanox, de nanotecnologia.

O tecido, que deve servir principalmente para a fabricação de peças de roupas hospitalares e já está chegando ao mercado, é capaz de eliminar 99,9% do novo coronavírus em cerca de dois minutos. A composição deriva de uma mistura de poliéster com algodão, que se soma, por meio de um processo chamado pad-dry-cure, à camada de micropartículas de prata, fixada. A aplicação de pequenas partículas de prata consiste em uma técnica difundida há algum tempo entre os industriais, estando presente nos ramos têxtil, de cosméticos e de tintas.

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Conforme explicou à Agência Brasil o pesquisador Lucio Freitas Junior, que trabalha no laboratório de biossegurança de nível 3 (NB3) do ICB, o projeto aproveitou a amostra de novo coronavírus que havia sido isolada e cultivada a partir da carga contraída por um dos primeiros pacientes diagnosticados com a doença, tratado no Hospital Israelita Albert Einstein.

“Tínhamos o vírus isolado e armazenado no nosso laboratório, em grande quantidade. Nosso laboratório fornece vírus ao Brasil todo e ao exterior, para a realização de estudos”, comentou.

Para se certificar da eficácia do material, os pesquisadores cumpriram uma segunda etapa, de análise molecular. Além de testes para avaliação da atividade antiviral, antimicrobiana e fungicida, avaliaram outros aspectos importantes para que o produto pudesse ser liberado para comercialização, como assegurar que não desencadeia alergias ou outras reações adversas no organismo.

Este texto foi publicado primeiro em http://noticias.r7.com/tecnologia-e-ciencia/pesquisadores-desenvolvem-tecido-que-neutraliza-novo-coronavirus-23072020

Via RSS publicado em https://vitorolig.tumblr.com/post/624482648739463168

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