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

• Type: Article in International Scientific Journal
• Date: 2009

Authors

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

Journal

Title: Analytical Sciences

Vol. 25 No. 3

Pages: 443-448

ISSN: 0910-6340

Publisher: Japan Society for Analytical Chemistry

Indexing

ISI Web of Knowledge - 8 Citations

ISI Web of Science

Scopus - 7 Citations

Scientific classification

FOS: Medical and Health sciences > Other medical sciences

CORDIS: Health sciences

Other information

Authenticus ID: 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>

Language: Portuguese

Type (Professor's evaluation): Scientific