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Tuesday, April 21, 2020 | History

2 edition of Transport phenomena in microfluidic devices. found in the catalog.

Transport phenomena in microfluidic devices.

Liqing Ren

Transport phenomena in microfluidic devices.

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Published .
Written in English


About the Edition

Both experimental and numerical studies about the transport phenomena in microfluidic devices are presented in this thesis. The transport phenomena of interest are pressure driven flow and electroosmotic driven flow with a Reynolds number on the order of unit, and the associated mass transport phenomena. The studied microfluidic devices include fused silicon capillaries, in-house made glass microchannels and a glass chip with a crossing-linked microchannel etched into its surface. The hydraulic diameter ranges from 20 mum to 200 mum.The on-chip sample injection processes are studied both experimentally and numerically. Fluorescent dyes are employed here as the sample and the sample injection (loading and dispensing) processes on a microfluidic chip are visualized using an in-house developed laser visualization system and techniques. The experimentally measured sample injection process is compared with the numerical simulation results. Reasonable agreements were found between the model predictions and experimental measurements. The model is further developed in order to improve the simulation accuracy and save significant computation time as compared with the previous model.A general model capable of simulating general on-chip injection processes is finally developed to make the numerical analysis tools complete. This general model considers the electrical conductivity difference present at microfluidic applications, which is not considered normally due to its complexity.The electroosomotic flow is commonly applied in microfluidic devices as a pump, therefore, the flow rate determination is of particular interest. An experimental setup and corresponding data acquisition system are developed to measure electroosmotic flow rate by employing solution displacement process and current monitoring technique. A theoretical model is developed to improve the accuracy of this technique. A numerical model is developed to simulate this displacing process and to obtain flow rate. Good agreements between numerical simulations and experimental measurements verified the developed model.The electrokinetic transport phenomena of pressure driven flow in microchannels are studied based on a simultaneous solution to the developed pressure driven flow model. It is found that the flow characteristics of microchannels differ significantly from that in macrosized devices showing high viscous effects. The numerical results are compared with the experimental measurements and good agreement verified the developed model.

The Physical Object
Pagination1 v. (in various foliations).
ID Numbers
Open LibraryOL20339332M
ISBN 100612917770

transport in non-Newtonian fluids. This dissertation presents experimental and numerical studies of particle transport phenomena in both electric field- and pressure-driven flows in non-Newtonian fluids through microchannels. In the first part, electrokinetic transport phenomena Cited by: 1. Microfluidic devices were also developed for versatile, rapid protein crystallization screening using nanovolumes of sample. Concentration gradients of protein and precipitant were generated to crystallize PSI, phycocyanin, and lysozyme using modified counterdiffusion. Additionally, a passive mixer was created to generate.


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Transport phenomena in microfluidic devices. by Liqing Ren Download PDF EPUB FB2

The author describes in detail and with extensive illustration micro fabrication, channel flow, transport laws, magnetophoresis, micro scale convection and micro sensors and activators, among others. This book spans multidisciplinary fields such as material science and mechanical engineering, engineering, physics, chemistry, microtechnology and biotechnology.

Transport Phenomena in Micro Systems explores the fundamentals of the new technologies related to Micro-Electro-Mechanical Systems (MEMS). It deals with the behavior, precise control and manipulation of fluids that are geometrically constrained to a small, typically sub-millimeter, scale, such as nl, pl, fl, small size, low energy consumption, effects of the micro domain and heat transfer in the related : Wiley.

Transport Phenomena in Micro Systems explores the fundamentals of the new technologies related to Micro-Electro-Mechanical Systems (MEMS). It deals with the behavior, precise control and manipulation of fluids that are geometrically constrained to a small, typically sub-millimeter, scale, such as nl, pl, fl, small size, low energy consumption, effects of the micro domain and heat transfer in the related devices.

Transport Phenomena in Micro Systems explores the fundamentals of the new technologies related to Micro-Electro-Mechanical Systems (MEMS). It deals with the behavior, precise control and manipulation of fluids that are geometrically constrained to a small, typically sub-millimeter, scale, such as nl, pl, fl, small size, low energy consumption, effects of the micro domain and heat transfer in the related : Pradipta Kumar Panigrahi.

Transport Phenomena in Micro Systems explores the fundamentals of the new technologies related to Micro-Electro-Mechanical Systems (MEMS). It deals with the behavior, precise control and manipulation of fluids that are geometrically constrained to a small, typically sub-millimeter, scale, such as nl, pl, fl, small size, low energy consumption.

Transport Phenomena in Microfluidic Systems (1st Edition) | Pradipta Kumar Panigrahi | download | B–OK. Download books for free. Find books. In this book, the fundamentals of chemical engineering are presented aiming to applications in micro system technology, microfluidics, and transport processes within microstructures.

After a general overview on both disciplines and common areas, recent projects are shortly presented.

Since these processes are governed by nonlinear phenomena, this book will appeal to readers from both communities: fluid mechanics and nonlinear dynamics.

Reviews “The material should interest scientists working on fundamental aspects of the transport problem, and engineers using recent research findings to design new microfluidic devices.”. Transport Phenomena in Micro Systems explores the fundamentals of the new technologies related to Micro-Electro-Mechanical Systems (MEMS).

It deals with the behavior, precise control and manipulation of fluids that are geometrically constrained to a small, typically sub-millimeter, scale, such as nl, pl, fl, small size, low energy consumption, effects of the micro domain and.

The review articles by Stone et al., 6 Stone and Kim, 2 and Squires and Quake 7 are a good place to start for a chemical engineer to understand the phenomena and challenges in microfluidic applications, and how fundamental principles of fluid flow and transport phenomena play a crucial role in the analysis and design of microfluidic processes.

Our microfluidic device consisted of five portions divided by arrays of micropillars. The generated shear stress gradient has five distinct levels Author: Pradipta Kumar Panigrahi.

The combination of different disciplines gives new opportunities in microfluidic devices and process intensification, respectively. Special features of the book are: the state-of-the-art in micro process engineering - a detailed treatment of transport phenomena for engineers - a design methodology from transport effects to economic considerationsBrand: Springer-Verlag Berlin Heidelberg.

This new volume of the annual review “Advances in Transport Phenomena” series contains three in-depth review articles on the microfluidic fabrication of vesicles, the dielectrophoresis field-flow fractionation for continuous-flow separation of particles and cells in microfluidic devices, and the thermodynamic analysis and optimization of heat exchangers, respectively.

Transport Phenomena in Micro Systems explores the fundamentals of the new technologies related to Micro-Electro-Mechanical Systems (MEMS). It deals with the behavior, precise control and manipulation of fluids that are geometrically constrained to a small, typically sub-millimeter, scale, such as nl, pl, fl, small size, low energy consumption Price: $ Micro- and Nanoscale Fluid Mechanics: Transport in Microfluidic Devices.

This text focuses on the physics of fluid transport in micro- and nanofabricated liquid-phase systems, with consideration of gas bubbles, solid particles, and macromolecules.

The author describes in detail and with extensive illustration micro fabrication, channel flow, transport laws, magnetophoresis, micro scale convection and micro sensors and activators, among others. This book spans multidisciplinary fields such as material science and mechanical engineering, engineering, physics, chemistry, microtechnology and.

Keeping in mind the previously published articles, the focus here is primarily on showcasing the fluid transport mechanisms through paper-based microfluidic devices.

The combination of different disciplines gives new opportunities in microfluidic devices and process intensification, respectively. Special features of the book are the state of the art in micro process engineering, a detailed treatment of transport phenomena for engineers, a design methodology from transport mehr.

Leseprobe; AutorenporträtAuthor: Norbert Kockmann. Buy Advances in Transport Phenomena on FREE SHIPPING on qualified orders Advances in Transport Phenomena Liqiu Wang: : Books Skip to main contentMissing: microfluidic. Heat Transfer and Fluid Flow in Minichannels and Microchannels methodically covers gas, liquid, and electrokinetic flows, as well as flow boiling and condensation, in minichannel and microchannel applications.

Examining biomedical applications as well, the book is an ideal reference for anyone involved in the design processes of microchannel. Get this from a library. Transport phenomena in microfluidic systems. [Pradipta Kumar Panigrahi] -- Fully comprehensive introduction to the rapidly emerging area of micro systems technology Transport Phenomena in Micro Systems explores the fundamentals of the new technologies related to.

Transport Phenomena in Micro Systems explores the fundamentals of the new technologies related to Micro-Electro-Mechanical Systems (MEMS). It deals with the behavior, precise control and manipulation of fluids that are geometrically constrained to a small, typically sub-millimeter, scale, such as nl, pl, fl, small size, low energy consumption Brand: Wiley.

FLUID TRANSPORT MECHANISMS IN MICROFLUIDIC DEVICES Joshua I. Molho, Amy E. Herr, Thomas W. Kenny, M. Godfrey Mungal Stanford University, Mechanical Engineering Department Terman, Stanford, CA ph: ()fx: () [email protected], [email protected] Michael G. Garguilo, Phillip H. PaulFile Size: KB.

Electrochemical Energy Systems. This note introduces principles and mathematical models of electrochemical energy conversion and covered includes: equivalent circuits, thermodynamics, reaction kinetics, transport phenomena, electrostatics, porous media, and phase transformations, applications to batteries, fuel cells, supercapacitors, and electrokinetics.

Microfluidics refers to the behaviour, precise control, and manipulation of fluids that are geometrically constrained to a small scale at which capillary penetration governs mass transport.

It is a multidisciplinary field that involves engineering, physics, chemistry, biochemistry, nanotechnology, and biotechnology. It has practical applications in the design of systems that process low volumes of fluids to achieve multiplexing, automation, and high-throughput screening.

Microfluidics. Electrokinetic phenomena are a family of several different effects that occur in heterogeneous fluids, or in porous bodies filled with fluid, or in a fast flow over a flat surface. The term heterogeneous here means a fluid containing particles.

Particles can be solid, liquid or gas bubbles with sizes on the scale of a micrometer or nanometer. There is a common source of. In nanometer-sized apertures with charged surfaces, the extension of the electrical double layer results in the electrostatic exclusion of co-ions and enrichment in counterions, which affects the permselectivity of such structures.

A modeling of this phenomenon is proposed and is compared with quantitative measurements of the ionic permeability change of a Pyrex nanoslit at low Cited by: Fluid Mechanics and Transport Phenomena.

Surfactant‐free microdispersion process of gas in organic solvents in microfluidic devices. Tan. The State Key Lab of Chemical Engineering, Dept.

of Chemical Engineering, Tsinghua University, BeijingChina at microscale without surfactant was initially investigated by using T‐junction Cited by:   Transport Phenomena in Micro Process Engineering by Norbert Kockmann,available at Book Depository with free delivery : Norbert Kockmann.

Fully comprehensive introduction to the rapidly emerging area of micro systems technology Transport Phenomena in Micro Systems explores the fundamentals of the new technologies related to Micro-Electro-Mechanical Systems (MEMS).

It deals with the behavior, precise control and manipulation of fluids that are geometrically constrained to a small, typically sub. Book Description. Basic Transport Phenomena in Biomedical Engineering, Fourth Edition, brings together fundamental engineering and life science principles, with specific attention paid to the momentum and mass transport concepts applicable to the design of medical devices.

Transvascular transport of NP can be investigated using in vitro vessel networks formed within microfluidic devices by vasculogenesis and/or angiogenesis. The barrier function of these in vitro vessels against fluorescent macromolecules has also been demonstrated (Figure 4B) Cited by: Cross-shaped microchannels connecting liquid reservoirs are typical configurations of the microfluidic chips.

Normally the microchannels have a large length-to-width aspect ratio (typically ), therefore, the transport phenomena in these microchannels are essentially multiscale and multidimensional problems.

The present article outlines the recent advancements in diffusion phenomena of cells and biomolecules by highlighting transport principles from an engineering perspective, cell responses in microfluidic devices with emphases on diffusion- and flow-based microfluidic gradient platforms, macroscopic and microscopic approaches for investigating Cited by: 6.

Advances in Transport Phenomena: - Ebook written by Liqiu Wang. Read this book using Google Play Books app on your PC, android, iOS devices. Download for offline reading, highlight, bookmark or take notes while you read Advances in Transport Phenomena Author: Liqiu Wang.

This new volume of the annual review “Advances in Transport Phenomena” series contains three in-depth review articles on the microfluidic fabrication of vesicles, the dielectrophoresis field-flow fractionation for continuous-flow separation of particles and cells in microfluidic devices, and the thermodynamic analysis and optimization of heat exchangers, Brand: Springer International Publishing.

This new volume of the annual review "Advances in Transport Phenomena" series contains three in-depth review articles on the microfluidic fabrication of vesicles, the dielectrophoresis field-flow fractionation for continuous-flow separation of particles and cells in microfluidic devices, and the thermodynamic analysis and optimization of heat exchangers, respectively.

A. Size. Microfluidic devices incorporate structures having internal diameters in the range of 10– μm for the transport of gases or cale duts such as channels and slots, pores, and also larger geometries that cause fluids to flow can be incorporated to these platforms. 5 High heat transfer performance can be achieved with heat transfer coefficients up Cited by: 6.

Observed electrokinetic potentials on microfluidic substrates Modifying the zeta potential Chemical and fluid-mechanical techniques for measuring interfacial properties Summary Supplementary reading Exercises 11 Species and charge transport Modes of species transport. This study aims to investigate the breakup of slender bubbles in non‐Newtonian fluids in microfluidic flow‐focusing devices using a high‐speed camera and a microparticle image velocimetry (micro‐PIV) system.

Experiments were conducted in Cited by:. In the past two decades, microfluidic devices have become attractive platforms for many chemical and biomedical applications due to their enhanced efficiency and accuracy at a reduced cost. Many of the fluids encountered in these applications exhibit non-Newtonian behaviors.

However, the majority of current particle transport studies have been limited in Newtonian Cited by: 1.Effective and versatile microfluidic pumps can be produced by utilizing various electrokinetic effects, such as electrohydrodynamics (EHD), induced-charge electroosmosis (ICEO) and dielectrophoresis (DEP).

Among these, traveling-wave EHD (twEHD) has emerged as a powerful pumping mechanism due to its potential for miniaturization and the ability to pump a variety of .Stanford Libraries' official online search tool for books, media, journals, databases, government documents and more.

Micro- and nanoscale fluid mechanics: transport in microfluidic devices in SearchWorks catalogAuthor: Kirby, Brian (Brian J.).