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  • 1
    Electronic Resource
    Electronic Resource
    Fabrication of magnetic microfiltration systems using soft lithography (2002)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 80 (2002), S. 461-463 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Arrays of nickel posts were used as magnetic elements in a microfiltration device that is compatible with microfluidic systems. The combination of microtransfer molding—a soft lithography technique—and electrodeposition generated nickel posts ∼7 μm in height and ∼15 μm in diameter inside a microfluidic channel. Once magnetized by a magnetic field from an external, permanent, neodymium–iron–boron magnet, these nickel posts generated strong magnetic field gradients and efficiently trapped superparamagnetic beads moving past them in a flowing stream of water. These nickel post arrays were also used to separate magnetic beads from nonmagnetic beads. © 2002 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1436282
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Manipulation of magnetic microbeads in suspension using micromagnetic systems fabricated with soft lithography (2001)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 78 (2001), S. 1775-1777 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Current-carrying microcircuits can generate strong magnetic-field gradients; these gradients, in turn, can control the position of magnetic microbeads in aqueous suspension. Micromagnetic systems were prepared using two representative soft lithography techniques—micromolding in capillaries and microtransfer molding—combined with electrodeposition. They can capture microbeads from solution, hold them in a fixed position, and move them along complex paths. Simply changing the current flowing in the systems can dynamically reconfigure the paths. The manipulation of magnetic microbeads using microfabricated circuits should expand current sample handling capabilities for biotechnology and combinational technology with or without the presence of net fluid flow and microfluidic channels. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1356728
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Using soft lithography to fabricate GaAs/AlGaAs heterostructure field effect transistors (1997)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 71 (1997), S. 2020-2022 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: This letter describes the fabrication of functional GaAs/AlGaAs field effect transistors using micromolding in capillaries—a representative soft lithographic technique. The fabrication process involved three soft lithographic steps and two registration steps. Room temperature characteristics of these transistors resemble those of field effect transistors fabricated by photolithography. The fabrication of functional microelectronic devices using multilayer soft lithography establishes the compatibility of these techniques with the processing methods used in device fabrication, and opens the door for their development as a technique in this area. © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.119774
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    Paper (German National Licenses)
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