Driving Microfluidic Flows With Three Dimensional Electrodes
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Author | : Yehya Mohamed Senousy |
Publisher | : |
Total Pages | : 0 |
Release | : 2012 |
Genre | : Fluid dynamics |
ISBN | : |
Download Driving Microfluidic Flows with Three Dimensional Electrodes Book in PDF, Epub and Kindle
Most of the structures in submillimeter-scale engineering are created from thin films, making them essentially two-dimensional (2D). Significant work has been done to fabricate 3D structures using self-folding, a deterministic form of self-assembly, and three dimensional lithographic and non-lithographic patterning. The objective of this work is to propose different fabrication and patterning strategies of 3D structures used as pumping electrodes for micro fluidic applications. 3D electrodes drive flows over the whole channel height while 2D electrodes stay near one wall. The first application of the 3D electrodes is mixing chemical or biological samples with reagents for chemical analysis which is one of the most time consuming operations in microfluidic platforms. The mixer used is based on the electrokinetic phenomenon of induced charge electro-osmosis (ICEO). ICEO creates microvortices around polarized posts with gold coated sidewalls, connected to embedded electrodes, by application of alternating current (AC) electric fields. These microvortices around posts help in mixing the two reagents very quickly. These vertical sidewall gold coated posts and embedded electrodes are fabricated using 3D photolithographic patterning and an ion milling fabrication technique. The second application is fast ac electro-osmotic (ACEO) pumps using 3D electrodes. These 3D electrodes dramatically improve the flow rate and frequency range of ACEO pumps over the planar electrodes. A non-photolithographic electrode patterning method is proposed to fabricate such electrodes. The method is based on shadowed evaporation of metal on an insulating substrate. This method is considered to be simple and cost effective compared to others used to create these stepped 3D electrodes. Finally, a self-folding technique is proposed to create out-of plane three dimensional electrodes for ACEO tube pumps. The technique depends on the strain mismatch between two different layered sheets of material. One layer usually has compressive stress, i.e. thermally grown Si02, and the other has relatively tensile stress, i.e. metals. The design is similar to the planar electrodes design in the literature, except as a 3D electrode it interacts with a larger volume of fluid for a more efficient pump.
Author | : Savas Tasoglu |
Publisher | : MDPI |
Total Pages | : 213 |
Release | : 2019-01-10 |
Genre | : Botanical chemistry |
ISBN | : 3038974676 |
Download 3D Printed Microfluidic Devices Book in PDF, Epub and Kindle
This book is a printed edition of the Special Issue "3D Printed Microfluidic Devices" that was published in Micromachines
Author | : Sushanta K. Mitra |
Publisher | : CRC Press |
Total Pages | : 1103 |
Release | : 2011-09-20 |
Genre | : Science |
ISBN | : 1439816778 |
Download Microfluidics and Nanofluidics Handbook Book in PDF, Epub and Kindle
This comprehensive handbook presents fundamental aspects, fabrication techniques, introductory materials on microbiology and chemistry, measurement techniques, and applications of microfluidics and nanofluidics. The first volume of the handbook focuses on physics and transport phenomena along with life sciences and related applications. It provides newcomers with the fundamental science background required for the study of microfluidics and nanofluidics. In addition, the advanced techniques and concepts described in the text will benefit experienced researchers and professionals.
Author | : Sushanta K. Mitra |
Publisher | : CRC Press |
Total Pages | : 1767 |
Release | : 2011-09-20 |
Genre | : Science |
ISBN | : 1466515740 |
Download Microfluidics and Nanofluidics Handbook, 2 Volume Set Book in PDF, Epub and Kindle
A comprehensive, two-volume handbook on Microfluidics and Nanofluidics, this text covers fundamental aspects, fabrication techniques, introductory materials on microbiology and chemistry, measurement techniques, and applications with special emphasis on the energy sector. Each chapter begins with introductory coverage to a subject and then narrows in on advanced techniques and concepts, thus making it valuable to students and practitioners. The author pays special attention to applications of microfluidics in the energy sector and provides insight into the world of opportunities nanotechnology has to offer. Figures, tables, and equations to illustrate concepts.
Author | : Xiangchun Xuan |
Publisher | : MDPI |
Total Pages | : 228 |
Release | : 2021-02-24 |
Genre | : Science |
ISBN | : 3036500480 |
Download Micro/Nano-Chip Electrokinetics, Volume III Book in PDF, Epub and Kindle
Micro/nanofluidics-based lab-on-a-chip devices have found extensive applications in the analysis of chemical and biological samples over the past two decades. Electrokinetics is the method of choice in these micro/nano-chips for transporting, manipulating, and sensing various analyte species (e.g., ions, molecules, fluids, and particles). This book aims to highlight the recent developments in the field of micro/nano-chip electrokinetics, ranging from the fundamentals of electrokinetics to the applications of electrokinetics to both chemo- and bio-sample handling.
Author | : Dongqing Li |
Publisher | : Springer Science & Business Media |
Total Pages | : 2242 |
Release | : 2008-08-06 |
Genre | : Technology & Engineering |
ISBN | : 0387324682 |
Download Encyclopedia of Microfluidics and Nanofluidics Book in PDF, Epub and Kindle
Covering all aspects of transport phenomena on the nano- and micro-scale, this encyclopedia features over 750 entries in three alphabetically-arranged volumes including the most up-to-date research, insights, and applied techniques across all areas. Coverage includes electrical double-layers, optofluidics, DNC lab-on-a-chip, nanosensors, and more.
Author | : Senol Mutlu |
Publisher | : |
Total Pages | : 430 |
Release | : 2005 |
Genre | : |
ISBN | : |
Download Microfluidic Biochemical Analysis System with Electro-osmotic Pump and Thermally Responsive Polymer Valve Book in PDF, Epub and Kindle
Author | : Sibel A. Ozkan |
Publisher | : Elsevier |
Total Pages | : 763 |
Release | : 2024-06-28 |
Genre | : Technology & Engineering |
ISBN | : 0443133875 |
Download Recent Trends and Perspectives on Electrochemical Sensors for Environmental Monitoring Book in PDF, Epub and Kindle
Recent Trends and Perspectives on Electrochemical Sensors for Environmental Monitoring presents current trends and progress on electrochemical sensors for environmental monitoring. The book comprehensively discusses various strategies to design electrochemical sensors for the analysis of contaminants of emerging concern in environmental samples and offers a thorough perspective on the most prominent methods, materials, and procedures available in the literature on electrochemical sensors for environmental monitoring. This book will be a helpful resource for the development of new sensor technologies and advanced onsite applications that can be used in routine analysis. Demonstrates how to make a sensitive analysis of environmental pollutants Documents state-of-the-art techniques, recent examples, and emphasizes fabrication strategies Presents the principles, methods, and equipment needed for various analytes detection and environmental monitoring using electrochemical techniques
Author | : |
Publisher | : |
Total Pages | : |
Release | : 2014 |
Genre | : |
ISBN | : |
Download Approximating Three-dimensional Fluid Flow in a Microfluidic Device with a Two-dimensional, Depth-averaged Lattice Boltzmann Method Book in PDF, Epub and Kindle
Author | : Yujun Song |
Publisher | : John Wiley & Sons |
Total Pages | : 712 |
Release | : 2018-01-04 |
Genre | : Science |
ISBN | : 3527800654 |
Download Microfluidics Book in PDF, Epub and Kindle
The first book offering a global overview of fundamental microfluidics and the wide range of possible applications, for example, in chemistry, biology, and biomedical science. As such, it summarizes recent progress in microfluidics, including its origin and development, the theoretical fundamentals, and fabrication techniques for microfluidic devices. The book also comprehensively covers the fluid mechanics, physics and chemistry as well as applications in such different fields as detection and synthesis of inorganic and organic materials. A useful reference for non-specialists and a basic guideline for research scientists and technicians already active in this field or intending to work in microfluidics.