Manufacturing of Miniature Fluidic Modules for Lab-on-a-Chip using UA Photoresin from Flexographic Platemaking Process

نویسندگان

  • Julio Cesar B. Fernandes
  • Luiz Otávio S. Ferreira
چکیده

Uma nova técnica de fabricação de dispositivos fluídicos miniaturizados foi desenvolvida, usando-se uma foto-resina baseada nos oligômeros uretana e acrilato (UA), usados na indústria gráfica para a confecção de clichês de impressoras flexográficas. Foram fabricados módulos de misturadores e reatores fluídicos medindo 10×10 mm, providos de canais com largura variando de 0,25 a 1,00 mm por 0,75 mm de profundidade. Tampas de 4,00 mm de espessura, contendo orifícios de 1,26 mm de diâmetro para a entrada e saída do fluido, foram usadas para selar os canais empregando-se um filme de foto-resina como adesivo. Interconexões de tubos de aço foram fixadas aos orifícios de entrada e saída do fluido. Todos os módulos fluídicos foram fabricados por fotolitografia, selados por cura no ultravioleta (UV) de uma camada de adesão de UA, empacotados usando a foto-resina, e suportaram, sem vazamentos, uma pressão de ar de 2×10 Pascal.

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تاریخ انتشار 2006