Sökning: "PDMS membrane"

Hittade 5 avhandlingar innehållade orden PDMS membrane.

  1. 1. The Multifunctional Pipette. A Microfluidic Technology for the Biosciences

    Författare :Alar Ainla; Chalmers University of Technology; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; microfluidic superfusion; microfluidic temperature sensing.; microfluidic dilution; hydrodynamic flow confinement; microfluidic mixer; supported lipid membranes; single-cell analysis; Microfluidics; microfabrication; PDMS;

    Sammanfattning : The theme of the work described in this thesis is the generation and application of liquid microenvironments in chemistry and bioscience using microfluidic devices. First, a computer controlled multi-stage dilution system to generate time-dependent chemical waves was developed, and its application was demonstrated on model biomembranes. LÄS MER

  2. 2. Microfluidic blood sample preparation for rapid sepsis diagnostics

    Författare :Jonas Hansson; Hjalmar Brismar; Aman Russom; Fredrik Nikolajeff; KTH; []
    Nyckelord :3D fluidic networks; bacteria isolation; inertial microfluidics; lab-on-chip; microfluidics; particle filtration; PDMS membrane; selective cell lysis. sepsis;

    Sammanfattning : Sepsis, commonly referred to as blood poisoning, is a serious medical condition characterized by a whole-body inflammatory state caused by microbial infection. Rapid treatment is crucial, however, traditional culture-based diagnostics usually takes 2-5 days. LÄS MER

  3. 3. Heterogeneous Technologies for Microfluidic Systems

    Författare :Gunjana Sharma; Klas Hjort; Sami Franssila; Uppsala universitet; []
    Nyckelord :actuator; biosensor; fluidic circuit board; heterogeneous technology; ion track; microfluidic; pump; stainless steel; super-hydrophobic; valve; Viton; TECHNOLOGY; TEKNIKVETENSKAP; Teknisk fysik med inriktning mot mikrosystemteknik; Engineering Science with specialization in Microsystems Technology;

    Sammanfattning : In this thesis, conventional and unconventional technologies have been studied and combined in order to make heterogeneous microfluidics with potential advantages, especially in biological applications. Many conventional materials, like silicon, glass, thermoplastic polymers, polyimide and polydimethylsiloxane (PDMS) have been combined in building heterogeneous microfluidic devices or demonstrators. LÄS MER

  4. 4. Microstructures for Chemical Analysis : Design, Fabrication and Characterisation

    Författare :Malin Svedberg; Fredrik Nikolajeff; Greger Thornell; Jan-Åke Schweitz; Sami Franssila; Uppsala universitet; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; Materials science; electrospray ionisation mass spectrometry; polymer microfabrication; paraffin actuators; hot embossing; Materialvetenskap; Materials science; Teknisk materialvetenskap;

    Sammanfattning : The interest for miniaturisation in chemical and biological analysis has increased in recent years. In this work, the design, fabrication and characterisation of tools for microanalysis have been studied. The focus is set on polymer microchips for applications in chemical analysis. LÄS MER

  5. 5. From Lab to Chip – and back : Polymer microfluidic systems for sample handling in point-of-care diagnostics

    Författare :Jonas Hansson; Wouter van der Wijngaart; Hywel Morgan; KTH; []

    Sammanfattning : This thesis contributes to the development of Lab-on-a-Chip systems that enables reliable, rapid medical diagnostics at the point-of-care. These contributions are focused on microfluidic Lab-on-a-Chip systems for sepsis diagnosis, autonomous sample-to-answer tests, and dried blood spot sampling. LÄS MER