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Issue 21, 2010
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High performance magnetically controllable microturbines

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Reported in this paper is two-photon photopolymerization (TPP) fabrication of magnetic microturbines with high surface smoothness towards microfluids mixing. As the key component of the magnetic photoresist, Fe3O4 nanoparticles were carefully screened for homogeneous doping. In this work, oleic acid stabilized Fe3O4 nanoparticles synthesized via high-temperature induced organic phase decomposition of an iron precursor show evident advantages in particle morphology. After modification with propoxylated trimethylolpropane triacrylate (PO3-TMPTA, a kind of cross-linker), the magnetic nanoparticles were homogeneously doped in acrylate-based photoresist for TPP fabrication of microstructures. Finally, a magnetic microturbine was successfully fabricated as an active mixing device for remote control of microfluids blending. The development of high quality magnetic photoresists would lead to high performance magnetically controllable microdevices for lab-on-a-chip (LOC) applications.

Graphical abstract: High performance magnetically controllable microturbines

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The article was received on 30 Apr 2010, accepted on 20 Jul 2010 and first published on 19 Aug 2010

Article type: Technical Note
DOI: 10.1039/C005277A
Citation: Lab Chip, 2010,10, 2902-2905
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    High performance magnetically controllable microturbines

    Y. Tian, Y. Zhang, J. Ku, Y. He, B. Xu, Q. Chen, H. Xia and H. Sun, Lab Chip, 2010, 10, 2902
    DOI: 10.1039/C005277A

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