Sökning: "dielectrophoresis"

Visar resultat 1 - 5 av 10 avhandlingar innehållade ordet dielectrophoresis.

  1. 1. Numerical modeling of dielectrophoresis

    Författare :Yuan Lin; Gustav Amberg; Olof Runborg; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; dielectrophoresis; orientation of rotation; fluid particle dynamics; microparticle; molecular dynamics; hydrodynamics; particle-particle interaction; superimposed; mobility; Fluid mechanics; Strömningsmekanik;

    Sammanfattning : We investigate the dielectrophoretic separation of microparticles. Two different models are formulated in two characteristic time scales. The first model mainly accounts for the orientation behavior and rotational motion of non-spheric microparticles. The concept of effective charge is suggested to calculate the finite size non-spheric particles. LÄS MER

  3. 2. Modeling of dielectrophoresis in micro and nano systems

    Författare :Yuan Lin; Gustav Amberg; Hywel Morgan; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Dielectrophoresis; micro particle; molecular dynamics; single-walled carbon nanotubes; hydrodynamics; particle-particle interaction; superimposed; multi-step; Fluid mechanics; Strömningsmekanik;

    Sammanfattning : This thesis presents models and simulations of dielectrophoretic separation of micro and nano particles. The fluid dynamics involved and the dielectric properties of water inside single-walled carbon nanotube are studied as well. LÄS MER

  4. 3. New Tools for Trapping and Separation in Gas Chromatography and Dielectrophoresis : Improved Performance by Aid of Computer Simulation

    Författare :Fredrik Aldaeus; Anders Colmsjö; Marja-Liisa Riekkola; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; gas chromatography; dielectrophoresis; computer simulation; finite element method; trapping; separation; lab-on-a-chip; Analytical chemistry; Analytisk kemi; Analytical Chemistry; analytisk kemi;

    Sammanfattning : Computer simulations can be useful aids for both developing new analytical methods and enhancing the performance of existing techniques. This thesis is based on studies in which computer simulations were key elements in the development of several new tools for use in gas chromatography and dielectrophoresis. LÄS MER

  5. 4. Controlled manipulation of microparticles utilizing magnetic and dielectrophoretic forces

    Författare :LarsErik Johansson; Sven Oscarsson; Leif Nyholm; Mälardalens högskola; []
    Nyckelord :Dielectrophoresis; Magnetic beads; MEMS; Micro-particles; Micro-scale manipulation; Micro-system; Biotechnology Chemical Engineering; bioteknik kemiteknik;

    Sammanfattning : This thesis presents some experimental work in the area of manipulation of microparticles. Manipulation of both magnetic and non magnetic beads as well as microorganisms are addressed. The work on magnetic bead manipulation is focused on controlled transport and release, on a micrometer level, of proteins bound to the bead surface. LÄS MER

  7. 5. Development of Electrical Readouts for Amplified Single Molecule Detection

    Författare :Camilla Russell; Mats Nilsson; Björn Högberg; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Rolling circle amplification; metallization; electrical DNA detection; magnetic nanoparticles; dielectrophoresis; boranephosphonate modified nucleotides; DNA elongation; Biokemi; Biochemistry;

    Sammanfattning : Molecular diagnostics is a fast growing field with new technologies being developed constantly. There is a demand for more sophisticated molecular tools able to detect a multitude of molecules on a single molecule level with high specificity, able to distinguish them from other similar molecules. LÄS MER