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Sensor NFC detecta presença de bombas e até comida estragada

10 Maio 2014

Pesquisadores do MIT (Instituto de Tecnologia de Massachusetts, nos Estados Unidos),criaram um sensor que pode detectar a presença de gases sem a necessidade de fios.

Feito com tecnologia NFC, o chip teve seu circuito alterado por meio de um lápis de nanotubos de carbono, o que permite que ele seja programado para detectar uma substância química específica. Assim, se ele for inserido em um smartphone, por exemplo, e a substância estiver presente, o circuito é ativado e um aviso aparece no display.

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O MIT acredita que será possível aproximar o smartphone de uma embalagem no supermercado e ver se o alimento está estragado ou ainda, que ele seja usado por esquadrões anti-bomba para localizar um explosivo.

Outro uso provável é integrar o sensor a crachás de funcionários em áreas de risco, para emitir um alerta se um gás prejudicial estiver vazando. A tecnologia também é capaz de ultrapassar barreiras mais grossas, como caixas.

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A equipe está trabalhando atualmente para que os chips funcionem com o Bluetooth, o que aumentaria a área de cobertura para detecção. Veja abaixo um vídeo explicativo do sensor: