Development of Flow Systems by Direct-milling on Poly(methyl methacrylate) Substrates Using UV-Photopolymerization as Sealing Process

• Tipo: Artigo em Revista Científica Internacional
• Data: 2009

Autores

Eunice R. G. O. RODRIGUES (Autor) FFUP; Rui A. S. LAPA (Autor) FFUP

Revista

Título: Analytical Sciences

Vol. 25 Nº 3

Páginas: 443-448

ISSN: 0910-6340

Editora: Japan Society for Analytical Chemistry

Indexação

ISI Web of Knowledge - 8 Citações

ISI Web of Science

Scopus - 7 Citações

Classificação Científica

FOS: Ciências médicas e da saúde > Outras ciências médicas

CORDIS: Ciências da Saúde

Outras Informações

ID Authenticus: P-003-MKS

Resumo (PT): An alternative process for the design and construction of fluidic devices is presented. Several sealing processes were studied, as well as the hydrodynamic characteristics of the proposed fluidic devices. Manifolds were imprinted on polymeric substrates by direct-write milling, according to Computer Assisted Design (CAD) data. Poly(methyl methacrylate) (PMMA) was used as substrate due to its physical and chemical properties. Different bonding approaches for the imprinted channels were evaluated and UV-photopolymerization of acrylic acid (AA) was selected. The hydrodynamic characteristics of the proposed flow devices were assessed and compared to those obtained in similar flow systems using PTFE reactors and micro-pumps as propulsion units (multi-pumping approach). The applicability of the imprinted reactors was evaluated in the sequential determination of calcium and magnesium in water samples. Results obtained were in good agreement with those obtained by the reference procedure <br> <br> <a target="_blank" href="http://www.jstage.jst.go.jp/article/analsci/25/3/25_443/_article"> Texto integral</a> <br> <br>

Abstract (EN): An alternative process for the design and construction of fluidic devices is presented. Several sealing processes were studied, as well as the hydrodynamic characteristics of the proposed fluidic devices. Manifolds were imprinted on polymeric substrates by direct-write milling, according to Computer Assisted Design (CAD) data. Poly(methyl methacrylate) (PMMA) was used as substrate due to its physical and chemical properties. Different bonding approaches for the imprinted channels were evaluated and UV-photopolymerization of acrylic acid (AA) was selected. The hydrodynamic characteristics of the proposed flow devices were assessed and compared to those obtained in similar flow systems using PTFE reactors and micro-pumps as propulsion units (multi-pumping approach). The applicability of the imprinted reactors was evaluated in the sequential determination of calcium and magnesium in water samples. Results obtained were in good agreement with those obtained by the reference procedure <br> <br> <a target="_blank" href="http://www.jstage.jst.go.jp/article/analsci/25/3/25_443/_article"> Full text </a> <br> <br>

Idioma: Português

Tipo (Avaliação Docente): Científica