Electrokinetics and Electrohydrodynamics in Microsystems [electronic resource] /
International Centre for Mechanical Sciences.
Ramos, Antonio.editor.
Among the most promising techniques to handle small objects at the micrometer scale are those that employ electrical forces, which have the advantages of voltage-based control and dominance over other forces. The book provides a state-of-the-art knowledge on both theoretical and applied aspects of the electrical manipulation of colloidal particles and fluids in microsystems and covers the folllowing topics: dielectrophoresis, electrowetting, electrohydrodynamics in microsystems, and electrokinetics of fluids and particles. The book is addressed to doctoral students, young or senior researchers, chemical engineers and/or biotechnologists with an interest in microfluidics, alb-on-chip or MEMS.
Description based upon print version of record.
Title Page; Copyright Page; PREFACE; Table of Contents; AC Electrokinetic Micro- and Nano-particle Manipulation and Characterization; 1 Introduction; 2 AC electrokinetics; 2.1 Polarized Particle; 2.2 Dielectrophoresis; 2.3 Travelling wave dielectrophoresis; 2.4 Electrorotation; 3 Micro-particle Manipulation; 3.1 Classical Electrode Configurations; 3.2 Insulator-based DEP; 3.3 Single cell trapping; 4 Micro-particle Characterization; 4.1 Particle characterization; 4.2 DEP for microfluidic systems; 5 Nanoscale DEP; 5.1 Navier-Stoke's equation and the Stoke's drag force; 5.2 Gravitational force
5.3 Electric field induced forces (electrohydrodynamics)5.4 Scaling laws; 5.5 Nano-particle separation; 6 Conclusions; Bibliography; Electrostatics and Quasielectrostatics; 1 Introduction; 1.1 Charge and forces on charges; 1.2 Electric field and electrical potential; 1.3 Basic equations: Gauss, Poisson, Laplace; 2 Bound charges, polarisation and dielectrics; 2.1 Dipoles; 2.2 Dielectrics; 2.3 Polarisation mechanisms; 2.4 The electric flux density; 2.5 The electric susceptibility and the relative permittivity; 3 Charge, currents and Ohm's law; 3.1 Water electrolytes and conductivity
3.2 Mobility and hydration radius3.3 The charge relaxation time; 4 Quasi-electrostatics: AC fields and complex permittivity; 4.1 Energy in a dielectric; 4.2 Summary; 5 Dielectric relaxations; 5.1 Orientational relaxation; 6 Interfacial Polarisation; 6.1 Interfacial polarisation; 6.2 The induced effective dipole moment of a particle; 6.3 The effective dipole moment of a spherical particle; 6.4 The shell model for biological particles; 6.5 The effective dipole moment of an ellipsoidal particle; 7 Mixture theory; 8 Conclusion; Bibliography; Dielectrophoresis and AC Electrokinetics
1 Introduction1.1 A note on Electrophoresis; 2 Force on an induced dipole: Dielectrophoresis; 2.1 Translational force on a dipole in a non-uniform field; 2.2 Dielectrophoresis in an AC field; 2.3 Dielectrophoretic behaviour; 2.4 A note on the direction of the DEP force; 2.5 Dielectrophoresis in a fluid; 3 Dielectrophoresis in a field with a spatially dependent phase; 3.1 Travelling wave Dielectrophoresis (twDEP); 4 Torques: electrorotation and electro-orientation; 4.1 Electrorotation (ROT); 4.2 Electroorientation; 5 Particle-particle interaction; 5.1 Two fixed dipoles; 5.2 Induced dipoles
BibliographyFundamentals of Electrowetting and Applications in Microsystems; 1 Introduction; 2 Physics of Electrowetting; 2.1 Basics of Wetting; 2.2 The Electrowetting Equation; 2.3 Electrochemical derivation; 2.4 Electromechanical interpretation and fine structure of the three-phase contact line; 2.5 Effect of AC signals and internal flows in AC electrowetting experiments; 2.6 Limiting effects: contact angle saturation and contact line instabilities; 2.7 Note: Electrocapillary effect and Lippmann experiment; 3 Applications of Electrowetting in microsystems
3.1 Electrowetting for microfluidic operations: dispensing, splitting, merging, mixing and transporting of drops
Includes bibliographical references.
Among the most promising techniques to handle small objects at the micrometer scale are those that employ electrical forces, which have the advantages of voltage-based control and dominance over other forces. The book provides a state-of-the-art knowledge on both theoretical and applied aspects of the electrical manipulation of colloidal particles and fluids in microsystems and covers the folllowing topics: dielectrophoresis, electrowetting, electrohydrodynamics in microsystems, and electrokinetics of fluids and particles. The book is addressed to doctoral students, young or senior researchers, chemical engineers and/or biotechnologists with an interest in microfluidics, alb-on-chip or MEMS.
Nanotechnology.
Nanoscale science.
Nanoscience.
Nanostructures.
Biotechnology.
Chemical engineering.
Nanotechnology and Microengineering.
Nanoscale Science and Technology.
Biotechnology.
Industrial Chemistry/Chemical Engineering.
Courses and lectures /