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Numerous applications of micro-/nanofluidics are related to particle transport in micro-/nanoscale channels, and electrokinetics has proved to be one of the most promising tools to manipulate particles in micro/nanofluidics. Therefore, a comprehensive understanding of electrokinetic particle transport in micro-/nanoscale channels is crucial to the
Book Synopsis Electrokinetic Particle Transport in Micro-/Nanofluidics by : Shizhi Qian
Download or read book Electrokinetic Particle Transport in Micro-/Nanofluidics written by Shizhi Qian and published by CRC Press. This book was released on 2012-06-19 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: Numerous applications of micro-/nanofluidics are related to particle transport in micro-/nanoscale channels, and electrokinetics has proved to be one of the most promising tools to manipulate particles in micro/nanofluidics. Therefore, a comprehensive understanding of electrokinetic particle transport in micro-/nanoscale channels is crucial to the
Book Synopsis Direct Current Electrokinetic Particle Transport in Micro/nano-fluidics by : Ye Ai
Download or read book Direct Current Electrokinetic Particle Transport in Micro/nano-fluidics written by Ye Ai and published by . This book was released on 2011 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Numerous applications of micro-/nanofluidics are related to particle transport in micro-/nanoscale channels, and electrokinetics has proved to be one of the most promising tools to manipulate particles in micro/nanofluidics. Therefore, a comprehensive understanding of electrokinetic particle transport in micro-/nanoscale channels is crucial to the development of micro-/nanofluidic devices. Electrokinetic Particle Transport in Micro-/Nanofluidics: Direct Numerical Simulation Analysis provides a fundamental understanding of electrokinetic particle transport in micro-/nanofluidics involving electrophoresis, dielectrophoresis, electroosmosis, and induced-charge electroosmosis. The book emphasizes the direct numerical simulation of electrokinetic particle transport phenomena, plus several supportive experimental studies. Using the commercial finite element package COMSOL Multiphysics®, it guides researchers on how to predict the particle transport subjected to electric fields in micro-/nanoscale channels. Researchers in the micro-/nanofluidics community, who may have limited experience in writing their own codes for numerical simulations, can extend the numerical models and codes presented in this book to their own research and guide the development of real micro-/nanofluidics devices. Corresponding COMSOL® script files are provided with the book and can be downloaded from the author’s website.
Book Synopsis Electrokinetic Particle Transport in Micro-/Nanofluidics by : Shizhi Qian
Download or read book Electrokinetic Particle Transport in Micro-/Nanofluidics written by Shizhi Qian and published by CRC Press. This book was released on 2012-06-19 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Numerous applications of micro-/nanofluidics are related to particle transport in micro-/nanoscale channels, and electrokinetics has proved to be one of the most promising tools to manipulate particles in micro/nanofluidics. Therefore, a comprehensive understanding of electrokinetic particle transport in micro-/nanoscale channels is crucial to the development of micro-/nanofluidic devices. Electrokinetic Particle Transport in Micro-/Nanofluidics: Direct Numerical Simulation Analysis provides a fundamental understanding of electrokinetic particle transport in micro-/nanofluidics involving electrophoresis, dielectrophoresis, electroosmosis, and induced-charge electroosmosis. The book emphasizes the direct numerical simulation of electrokinetic particle transport phenomena, plus several supportive experimental studies. Using the commercial finite element package COMSOL Multiphysics®, it guides researchers on how to predict the particle transport subjected to electric fields in micro-/nanoscale channels. Researchers in the micro-/nanofluidics community, who may have limited experience in writing their own codes for numerical simulations, can extend the numerical models and codes presented in this book to their own research and guide the development of real micro-/nanofluidics devices. Corresponding COMSOL® script files are provided with the book and can be downloaded from the author’s website.
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.
Book Synopsis Micro/Nano-Chip Electrokinetics, Volume III by : Xiangchun Xuan
Download or read book Micro/Nano-Chip Electrokinetics, Volume III written by Xiangchun Xuan and published by MDPI. This book was released on 2021-02-24 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
This book is a printed edition of the Special Issue "Micro/Nano-Chip Electrokinetics" that was published in Micromachines
Book Synopsis Micro/Nano-Chip Electrokinetics by : Xiangchun Xuan
Download or read book Micro/Nano-Chip Electrokinetics written by Xiangchun Xuan and published by MDPI. This book was released on 2018-07-04 with total page 203 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "Micro/Nano-Chip Electrokinetics" that was published in Micromachines
This book reviews the latest advancement of microfluidics and nanofluidics with a focus on electrokinetic phenomena in microfluidics and nanofluidics. It provides fundamental understanding of several new interfacial electrokinetic phenomena in microfluidics and nanofluidics. Chapter 1 gives a brief review of the fundamentals of interfacial electrokinetics. Chapter 2 shows induced charge electrokinetic transport phenomena. Chapter 3 presents the new advancement in DC dielectrophoresis. Chapter 4 introduces a novel nanofabrication method and the systematic studies of electrokinetic nanofluidics. Chapter 5 presents electrokinetic phenomena associated with Janus particles and Janus droplets. Chapter 6 introduces a new direction of electrokinetic nanofluidics: nanofluidic iontronics. Chapter 7 discusses an important differential resistive pulse sensor in microfluidics and nanofluidics.
Book Synopsis Electrokinetic Microfluidics and Nanofluidics by : Dongqing Li
Download or read book Electrokinetic Microfluidics and Nanofluidics written by Dongqing Li and published by Springer Nature. This book was released on 2022-11-18 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reviews the latest advancement of microfluidics and nanofluidics with a focus on electrokinetic phenomena in microfluidics and nanofluidics. It provides fundamental understanding of several new interfacial electrokinetic phenomena in microfluidics and nanofluidics. Chapter 1 gives a brief review of the fundamentals of interfacial electrokinetics. Chapter 2 shows induced charge electrokinetic transport phenomena. Chapter 3 presents the new advancement in DC dielectrophoresis. Chapter 4 introduces a novel nanofabrication method and the systematic studies of electrokinetic nanofluidics. Chapter 5 presents electrokinetic phenomena associated with Janus particles and Janus droplets. Chapter 6 introduces a new direction of electrokinetic nanofluidics: nanofluidic iontronics. Chapter 7 discusses an important differential resistive pulse sensor in microfluidics and nanofluidics.
Arguably the first book of its kind, Computational Bioengineering explores the power of multidisciplinary computer modeling in bioengineering. Written by experts, the book examines the interplay of multiple governing principles underlying common biomedical devices and problems, bolstered by case studies. It shows you how to take advantage of the la
Book Synopsis Computational Bioengineering by : Guigen Zhang
Download or read book Computational Bioengineering written by Guigen Zhang and published by CRC Press. This book was released on 2015-04-01 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: Arguably the first book of its kind, Computational Bioengineering explores the power of multidisciplinary computer modeling in bioengineering. Written by experts, the book examines the interplay of multiple governing principles underlying common biomedical devices and problems, bolstered by case studies. It shows you how to take advantage of the la
Book Synopsis Electrokinetic Phenomena in Micro/Nanofluidics:Flow Field, Ionic Transport, Concentration Polarization Effect and Its Application by : 黃冠達
Download or read book Electrokinetic Phenomena in Micro/Nanofluidics:Flow Field, Ionic Transport, Concentration Polarization Effect and Its Application written by 黃冠達 and published by . This book was released on 2008 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt:
A lab-on-a-chip device is a microscale laboratory on a credit-card sized glass or plastic chip with a network of microchannels, electrodes, sensors and electronic circuits. These labs on a chip can duplicate the specialized functions as performed by their room-sized counterparts, such as clinical diagnoses, PCR and electrophoretic separation. The advantages of these labs on a chip include significant reduction in the amounts of samples and reagents, very short reaction and analysis time, high throughput and portability. Generally, a lab-on-a-chip device must perform a number of microfluidic functions: pumping, mixing, thermal cycling/incubating, dispensing, and separating. Precise manipulation of these microfluidic processes is key to the operation and performance of labs on a chip. The objective of this book is to provide a fundamental understanding of the interfacial electrokinetic phenomena in several key microfluidic processes, and to show how these phenomena can be utilised to control the microfluidic processes. For this purpose, this book emphasises the theoretical modelling and the numerical simulation of these electrokinetic phenomena in microfluidics. However, experimental studies of the electrokinetic microfluidic processes are also highlighted in sufficient detail. The first book which systematically reviews electrokinetic microfluidics processes for lab-on-a chip applications Covers modelling and numerical simulation of the electrokinetic microfluidics processes Providing information on experimental studies and details of experimental techniques, which are essential for those who are new to this field
Book Synopsis Electrokinetics in Microfluidics by : Dongqing Li
Download or read book Electrokinetics in Microfluidics written by Dongqing Li and published by Elsevier. This book was released on 2004-08-20 with total page 653 pages. Available in PDF, EPUB and Kindle. Book excerpt: A lab-on-a-chip device is a microscale laboratory on a credit-card sized glass or plastic chip with a network of microchannels, electrodes, sensors and electronic circuits. These labs on a chip can duplicate the specialized functions as performed by their room-sized counterparts, such as clinical diagnoses, PCR and electrophoretic separation. The advantages of these labs on a chip include significant reduction in the amounts of samples and reagents, very short reaction and analysis time, high throughput and portability. Generally, a lab-on-a-chip device must perform a number of microfluidic functions: pumping, mixing, thermal cycling/incubating, dispensing, and separating. Precise manipulation of these microfluidic processes is key to the operation and performance of labs on a chip. The objective of this book is to provide a fundamental understanding of the interfacial electrokinetic phenomena in several key microfluidic processes, and to show how these phenomena can be utilised to control the microfluidic processes. For this purpose, this book emphasises the theoretical modelling and the numerical simulation of these electrokinetic phenomena in microfluidics. However, experimental studies of the electrokinetic microfluidic processes are also highlighted in sufficient detail. The first book which systematically reviews electrokinetic microfluidics processes for lab-on-a chip applications Covers modelling and numerical simulation of the electrokinetic microfluidics processes Providing information on experimental studies and details of experimental techniques, which are essential for those who are new to this field
Nanofluidics investigates transport phenomena, manipulation, and control of fluids and nano-sized objects in fluidic channels with an at least one-dimensional size smaller than 100 nm. At the nanoscale, fluids and objects exhibit lots of unique physical and mechanical behaviors which cannot be observed in micron-sized or macro-sized structures, especially for electrokinetically driven cases. Electrokinetic transport phenomena in nanochannels offer promising possibilities for new applications of nanofluidic systems, such as drug delivery, DNA sequencing, and biosensing. However, the current widely-used nanofabrication technologies are complicated, time-consuming and expensive. Fundamental research of electrokinetic transport phenomena at the nanoscale has been focused on analytical and numerical models, and very limited experimental studies have been conducted. Resistive pulse sensing (RPS) technology has been integrated with nanofluidics and applied in nanoparticle characterization; however, traditional nano-orifice-based RPS detection systems are not suitable for practical applications due to their bulky size, low sensitivity, and high cost. This thesis studies electrokinetic transport phenomena in polydimethylsiloxane (PDMS) nanochannels, as well as applications of nanochannel-based nanofluidic devices in nanoparticle detection and molecule sensing. At the beginning of this thesis, a cost-effective, productive and simple method for fabricating disposable PDMS nanofluidic devices by the solvent-induced cracking method and nanoimprint technique is developed. The channel size is controlled by the working parameters of the solvent-induced cracking method while the quantity and locations of these nanocracks are determined by artificial defects. A detailed guideline for making PDMS nanofluidic chips with single nanochannels or multiple nanochannels of controllable channel size and spacing is provided. Nanochannels of 20 nm in depth can be obtained easily by using this method. Two fundamental research projects are conducted on single-nanochannel-based nanofluidic chips to investigate electrokinetically driven fluids and particles in nanochannels. Electroosmotic flow (EOF) in single nanochannels is measured by the current slope method. Channel size effects, concentration effects and electric field effects upon EOF velocity in nanochannels are investigated systematically. The decrease of EOF velocity due to overlapping of electric double layers (EDLs) is demonstrated by experiments. The experimental results are in good agreement with the numerical simulation results. Electrokinetic (EK) motion of single nanoparticles in single PDMS nanochannels is investigated by particle tracing method systematically. Effects of ionic concentration of the electrolyte media, applied electric field, and particle-to-channel size ratio on particle velocity are studied. The velocity of nanoparticles inside the single nanochannels is suppressed by the confined nanospace due to interactions between EDLs. Lastly, by using the nanochannel-based nanofluidic chips, two applications are developed to detect nanoparticles, cations as well as DNA molecules by the RPS technique. A mathematic model for single-gate differential RPS detection systems is developed to evaluate the RPS signals; working parameters involved in particle detection by using the nanochannel-based differential RPS chips are studied experimentally. The signal-to-noise ratio (SNR) of the PDMS nanochannel-based differential RPS systems is also explored by experiments. To enhance the resolution of the nanochannel-based RPS devices, carbon nanotubes (CNTs) are integrated into differential RPS nanofluidic chips to work as the sensing gates. Novel methods to isolate and cut individual CNTs for CNT-based nanofluidic devices are also created. The CNT-channel-based differential RPS chips are used to detect single cations and individual ssDNA molecules. Distinguishing of 15-nt ssDNAs and 30-nt ssDNAs with high resolution has been achieved. This thesis provides the nanofluidic research community with a comprehensive working procedure for fabricating cost-effective PDMS-based nanofluidic chips. The fundamental studies in this thesis expand our understanding of electrokinetic transport phenomena at the nanoscale, and the differential RPS detection systems developed on the nanochannel-based nanofluidic chips open a new avenue to nanoparticle detection as well as molecule sensing.
Book Synopsis Electrokinetic Transport Phenomena in Nanochannels and Applications of Nanochannel-based Devices in Nanoparticle Detection and Molecule Sensing by : Ran Peng
Download or read book Electrokinetic Transport Phenomena in Nanochannels and Applications of Nanochannel-based Devices in Nanoparticle Detection and Molecule Sensing written by Ran Peng and published by . This book was released on 2018 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanofluidics investigates transport phenomena, manipulation, and control of fluids and nano-sized objects in fluidic channels with an at least one-dimensional size smaller than 100 nm. At the nanoscale, fluids and objects exhibit lots of unique physical and mechanical behaviors which cannot be observed in micron-sized or macro-sized structures, especially for electrokinetically driven cases. Electrokinetic transport phenomena in nanochannels offer promising possibilities for new applications of nanofluidic systems, such as drug delivery, DNA sequencing, and biosensing. However, the current widely-used nanofabrication technologies are complicated, time-consuming and expensive. Fundamental research of electrokinetic transport phenomena at the nanoscale has been focused on analytical and numerical models, and very limited experimental studies have been conducted. Resistive pulse sensing (RPS) technology has been integrated with nanofluidics and applied in nanoparticle characterization; however, traditional nano-orifice-based RPS detection systems are not suitable for practical applications due to their bulky size, low sensitivity, and high cost. This thesis studies electrokinetic transport phenomena in polydimethylsiloxane (PDMS) nanochannels, as well as applications of nanochannel-based nanofluidic devices in nanoparticle detection and molecule sensing. At the beginning of this thesis, a cost-effective, productive and simple method for fabricating disposable PDMS nanofluidic devices by the solvent-induced cracking method and nanoimprint technique is developed. The channel size is controlled by the working parameters of the solvent-induced cracking method while the quantity and locations of these nanocracks are determined by artificial defects. A detailed guideline for making PDMS nanofluidic chips with single nanochannels or multiple nanochannels of controllable channel size and spacing is provided. Nanochannels of 20 nm in depth can be obtained easily by using this method. Two fundamental research projects are conducted on single-nanochannel-based nanofluidic chips to investigate electrokinetically driven fluids and particles in nanochannels. Electroosmotic flow (EOF) in single nanochannels is measured by the current slope method. Channel size effects, concentration effects and electric field effects upon EOF velocity in nanochannels are investigated systematically. The decrease of EOF velocity due to overlapping of electric double layers (EDLs) is demonstrated by experiments. The experimental results are in good agreement with the numerical simulation results. Electrokinetic (EK) motion of single nanoparticles in single PDMS nanochannels is investigated by particle tracing method systematically. Effects of ionic concentration of the electrolyte media, applied electric field, and particle-to-channel size ratio on particle velocity are studied. The velocity of nanoparticles inside the single nanochannels is suppressed by the confined nanospace due to interactions between EDLs. Lastly, by using the nanochannel-based nanofluidic chips, two applications are developed to detect nanoparticles, cations as well as DNA molecules by the RPS technique. A mathematic model for single-gate differential RPS detection systems is developed to evaluate the RPS signals; working parameters involved in particle detection by using the nanochannel-based differential RPS chips are studied experimentally. The signal-to-noise ratio (SNR) of the PDMS nanochannel-based differential RPS systems is also explored by experiments. To enhance the resolution of the nanochannel-based RPS devices, carbon nanotubes (CNTs) are integrated into differential RPS nanofluidic chips to work as the sensing gates. Novel methods to isolate and cut individual CNTs for CNT-based nanofluidic devices are also created. The CNT-channel-based differential RPS chips are used to detect single cations and individual ssDNA molecules. Distinguishing of 15-nt ssDNAs and 30-nt ssDNAs with high resolution has been achieved. This thesis provides the nanofluidic research community with a comprehensive working procedure for fabricating cost-effective PDMS-based nanofluidic chips. The fundamental studies in this thesis expand our understanding of electrokinetic transport phenomena at the nanoscale, and the differential RPS detection systems developed on the nanochannel-based nanofluidic chips open a new avenue to nanoparticle detection as well as molecule sensing.
