O sensor pode detectar hidrogaªnio em concentrazµes de apenas 10 partes por milha£o de moléculas (para diagnósticos médicos) a 40.000 partes por milha£o (onívelem que o gás se torna potencialmente explosivo).
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)
O pesquisador PhD Ebtsam Alenezy segura um prota³tipo do sensor de hidrogaªnio ativado por luz, que pode fornecer resultados ultraprecisos em temperatura ambiente. Crédito: RMIT University
Inspirados pelasuperfÍcie das asas das borboletas, os pesquisadores desenvolveram um sensor de hidrogaªnio ativado por luz que produz resultados ultraprecisos em temperatura ambiente.
A tecnologia pode detectar vazamentos de hidrogaªnio muito antes que eles representem riscos a segurança e pode medir pequenas quantidades de gás no ha¡lito das pessoas, para diagnosticar distúrbios intestinais.
Sensores de hidrogaªnio comerciais funcionam apenas em temperaturas de 150 ° C ou mais, mas o prota³tipo desenvolvido por pesquisadores da RMIT University em Melbourne, Austra¡lia, éalimentado por luz em vez de calor.
O sensor, baseado em microestruturas irregulares que imitam asuperfÍcie das asas das borboletas, édetalhado em um novo estudo publicado na revista ACS Sensors .
O co-pesquisador Dr. Ylias Sabri disse que o prota³tipo era escala¡vel, econa´mico e oferecia um pacote total de recursos que não poderiam ser combinados por nenhum sensor de hidrogaªnio atualmente no mercado.
"Alguns sensores podem medir pequenas quantidades, outros podem detectar concentrações maiores; todos eles precisam de muito calor para funcionar", disse Sabri.
"Nosso sensor de hidrogaªnio pode fazer tudo - ésensavel, seletivo, funciona em temperatura ambiente e pode detectar em uma ampla gama de naveis."
O sensor pode detectar hidrogaªnio em concentrações de apenas 10 partes por milha£o de moléculas (para diagnósticos médicos) a 40.000 partes por milha£o (onívelem que o gás se torna potencialmente explosivo).
O co-pesquisador Dr. Ahmad Kandjani disse que a ampla faixa de detecção o torna ideal para uso médico e para aumentar a segurança na economia emergente do hidrogaªnio.
O sensor éfeito com um chip eletra´nico, que écoberto por uma fina camada de
cristais fota´nicos e, em seguida, um composto de tita¢nio e pala¡dio.
Crédito: RMIT University
"O hidrogaªnio tem potencial para ser o combustavel do futuro, mas sabemos que os temores de segurança podem afetar a confianção do paºblico nesta fonte de energia renova¡vel", disse ele.
"Ao fornecer tecnologia de detecção precisa e confia¡vel que pode detectar o menor dos vazamentos, bem antes que se tornem perigosos, esperamos contribuir para o avanço de uma economia de hidrogaªnio que pode transformar os suprimentos de energia em todo o mundo."
Saliaªncias da borboleta: como funciona o sensor
O núcleo inovador do novo sensor éfeito de pequenas esferas conhecidas como cristais fota´nicos ou coloidais.
Essas formas ocas, semelhantes a s minaºsculas saliaªncias encontradas nasuperfÍcie das asas de uma borboleta, são estruturas altamente ordenadas e ultraeficientes na absorção de luz.
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Essa eficiência significa que o novo sensor pode extrair toda a energia de que precisa para operar de um feixe de luz, em vez de calor.
Ph.D. O pesquisador e primeiro autor Ebtsam Alenezy disse que o sensor de temperatura ambiente era mais seguro e mais barato de operar, em comparação com sensores de hidrogaªnio comerciais que normalmente operam de 150C a 400C.
"Os cristais fota´nicos permitem que nosso sensor seja ativado pela luz e também fornecem a consistaªncia estrutural que écratica para um sensoriamento confia¡vel de gás", disse ela.
"Ter uma estrutura consistente, qualidade de fabricação consistente e resultados consistentes são vitais - e éisso que a natureza nos entregou por meio dessas formas bioinspiradas.
Essas minaºsculas esferas ocas conhecidas como cristais fota´nicos, inspiradas na
superfacie irregular das asas de uma borboleta, são o núcleo inovador do
novo sensor de hidrogaªnio. Imagem ampliada 40.000 vezes.
Crédito: RMIT University
"O processo de fabricação bem desenvolvido para cristais fota´nicos também significa que nossa tecnologia éfacilmente escala¡vel para naveis industriais, já que centenas de sensores podem ser produzidos rapidamente de uma vez."
Para fazer o sensor, um chip eletra´nico éprimeiro coberto com uma fina camada de cristais fota´nicos e, em seguida, com um composto de tita¢nio e pala¡dio.
Quando o hidrogaªnio interage com o chip, o gás éconvertido em a¡gua. Este processo cria uma corrente eletra´nica e medindo a magnitude da corrente, o sensor pode dizer com precisão quanto hidrogaªnio estãopresente.
Ao contra¡rio de muitos sensores comerciais que lutam na presença de a³xido de nitrogaªnio, a nova tecnologia éaltamente seletiva para que possa isolar com precisão o hidrogaªnio de outros gases.
Aplicações médicas
Com naveis elevados de hidrogaªnio conhecidos por estarem ligados a distúrbios gastrointestinais, a tecnologia tem forte potencial para uso em diagnóstico e monitoramento médico.
Atualmente, a abordagem diagnóstica padrãoépor meio de amostras respirata³rias, que são enviadas aos laboratórios para processamento.
Sabri disse que o novo chip pode ser integrado a um dispositivo porta¡til para fornecer resultados instanta¢neos.
"Com condições intestinais, a diferença entre naveis sauda¡veis ​​de hidrogaªnio e naveis prejudiciais a saúde éminaºscula - apenas 10 partes por milha£o - mas nosso sensor pode medir com precisão essas pequenas diferenças", disse ele.
Um pedido provisãorio de patente foi depositado para a tecnologia e a equipe de pesquisa espera colaborar com fabricantes de sensores de hidrogaªnio , células de combustavel, baterias ou empresas de diagnóstico médico para comercializar o sensor.