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  • Title: Embellishment of microfluidic devices via femtosecond laser micronanofabrication for chip functionalization.
    Author: Wang J, He Y, Xia H, Niu LG, Zhang R, Chen QD, Zhang YL, Li YF, Zeng SJ, Qin JH, Lin BC, Sun HB.
    Journal: Lab Chip; 2010 Aug 07; 10(15):1993-6. PubMed ID: 20508876.
    Abstract:
    This paper demonstrates the embellishment of existing microfluidic devices with integrated three dimensional (3D) micronanostructures via femtosecond laser micronanofabrication, which, for the first time, proves two-photon photopolymerization (TPP) to be a powerful technology for chip functionalization. As representative examples, microsieves with various pore shape and adjustable pore size were successfully fabricated inside a conventional glass-based microfluidic channel prepared by wet etching for microparticle separation. Moreover, a fish scale like microfilter was also fabricated and appointed as a one-way valve, which showed excellent performance as we expected. These results indicate that such embellishment of microfluidic devices is simple, low cost, flexible and easy to access. We believe that, combined with TPP, the application of lab-on-chip devices would be further extended.
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