Folha produzida pelo homem pode contribuir para colonização espacial.
Autor: Paula Cruz | Publicado: 2014-08-20T12:48:00-03:00



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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;Uma folha biológica sintética recém-criada
no Reino Unido pode permitir que os seres humanos colonizem o espaço. Segundo
seu inventor, o estudante Julian Melchiorri, do Royal College of Art, o
material absorve água e CO2, além de produzir energia como qualquer outra
planta.








&nbsp;&nbsp;&nbsp; A matriz da folha é formada por proteínas
de seda, resistentes a viagens espaciais. Elas receberam cloroplastos, a região
da planta responsável pela fotossíntese.











&nbsp;&nbsp;&nbsp; — A Nasa está pesquisando diferentes formas
de produção de oxigênio para jornadas espaciais de longa distância. Desta
forma, podemos ver se será possível viver no espaço — explica Melchiorri. —
Como as plantas naturais não crescem onde não há gravidade, este material
sintético pode permitir um aumento significativo da área que exploramos no
Universo.











POUCAS
NECESSIDADES











&nbsp;&nbsp;&nbsp; Melchiorri coordena o projeto Folha de
Seda, desenvolvido em conjunto com a Universidade Tufts, nos EUA.











&nbsp;&nbsp;&nbsp; — As fibras de seda têm uma capacidade
incrível de estabilizar moléculas — destaca o pesquisador. — Com os
cloroplastos, conseguimos o primeiro material fotossintético que vive e respira
como as plantas.











&nbsp;&nbsp;&nbsp; Como as folhas de uma planta, o material
estudado por Melchiorri precisa apenas de luz e uma pequena quantidade de água
para produzir oxigênio.











&nbsp;&nbsp;&nbsp; — A folha de seda é a primeira folha
biológica produzida pelo homem. É muito leve e consome pouca energia —
ressalta. — Queremos usar a eficiência da natureza em um ambiente feito pelos
humanos.











&nbsp;&nbsp;&nbsp; A tecnologia desenvolvida por Melchiorri
pode contribuir com a eficiência energética de instalações que fazem parte de
nosso cotidiano, como os edifícios.











&nbsp;&nbsp;&nbsp; — Estas folhas também podem ser usadas em
sistemas de fachada e iluminação. É possível absorver o ar de fora do prédio,
fazer com que passe por filtros biológicos e, depois, levar oxigênio para
dentro das instalações.











A
pesquisa foi divulgada pelo site Dezeen











Fonte:
oglobo.globo.com
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