4.7 Article

Effect of pressure-driven flow on electroosmotic flow and electrokinetic mass transport in microchannels

相关参考文献

注意:仅列出部分参考文献,下载原文获取全部文献信息。
Article Engineering, Environmental

Numerical studies on the hydraulic and mixing performances of fluid flow around a cylinder in microchannel with vertical flexible flag

Dalei Jing et al.

Summary: The study investigates the effects of periodic flow behind a cylinder on the oscillation of a flexible flag, revealing the mixing and pressure drop characteristics of CCFF with different heights and deformabilities under various Reynolds numbers. Mixing in CCFF is mainly influenced by molecular diffusion at low to moderate Re-d, while vortex shedding from the vibrating flag enhances mixing at high Re-d. Compared to SC, CCFF has higher pressure drop but only shows superior mixing efficiency at high Re-d or with increased flag height. Moreover, CCFF demonstrates lower pressure drop and higher mixing efficiency than CCRF at large Re-d, with a maximum decrease in pressure drop of 61.09% and a maximum increase in mixing efficiency of 11.46%.

CHEMICAL ENGINEERING JOURNAL (2022)

Article Thermodynamics

Finding the optimal design of a Cantor fractal-based AC electric micromixer with film heating sheet by a three-objective optimization approach

Honglin Lv et al.

Summary: This paper presents a three-objective optimization process for an AC electrothermal micromixer based on the fractal principle. By using Latin Hypercube Sampling, response surface function method, and Multi-objective genetic algorithm, the Pareto optimal surface is obtained. The mixing index and mixing energy cost are significantly improved, and a micromixer with better overall performance can be chosen.

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER (2022)

Article Chemistry, Analytical

Multiplexed miRNA Quantitation Using Injectionless Microfluidic Thermal Gel Electrophoresis

Mario A. Cornejo et al.

Summary: This report presents a simple and rapid method for directly quantifying multiple miRNAs using microfluidic thermal gel electrophoresis (TGE). The method utilizes fluorescent probes and an innovative microfluidic device to achieve accurate miRNA measurement, and it has been validated with cell extracts. This technique has the potential for automation and can be valuable for clinical and pharmaceutical analyses.

ANALYTICAL CHEMISTRY (2022)

Article Thermodynamics

Voltage-induced concentration enhancement of analyte solutes in microfluidic chips

Shuai Yuan et al.

Summary: Microfluidic-based enrichment techniques have been extensively studied to enhance the sensitivity of detection by increasing the concentration of analytes. In this study, a numerical model is developed to investigate the complex analyte focusing process in a microfluidic electrophoresis chip. The results show that factors such as electrode location and the number of mass transfer channels are crucial for improving the enrichment performance. After considering the Joule heating effect, the final microchip achieves significant concentration enrichment. Moreover, the method is successfully applied to the experimental enrichment of Rhodamine B and cadmium (II) ions.

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER (2022)

Article Chemistry, Analytical

On-Chip Preconcentration Microchip Capillary Electrophoresis Based CE-PRM-LIVE for High-Throughput Selectivity Profiling of Deubiquitinase Inhibitors

He Zhu et al.

Summary: Researchers have conducted rapid activity-based protein profiling of DUB inhibitors using a novel microchip technology and mass spectrometer. The study demonstrates improved proteome coverage of complex samples and accurate quantification of labeled samples.

ANALYTICAL CHEMISTRY (2022)

Article Thermodynamics

Numerical and experimental investigation of mixing enhancement in the passive planar mixer with bent baffles

Shuai Yuan et al.

Summary: This study proposes a passive planar micromixer with narrow gaps and obstacles arranged in mixing units, which utilizes micro-jets and bent baffles to split and recombine streams and promote vortex formation for improving mixing efficiency. By conducting a comprehensive geometrical study and analyzing various parameters, it is found that reducing gap width, increasing gap length, using staggered Z-shaped baffles, and employing octagonal mixing units can enhance mixing efficiency. A novel micromixer with close to 0.8 mixing performance at Re = 0.5 and a short distance of 2800 μm is proposed, fabricated, and tested.

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER (2022)

Article Engineering, Environmental

Acoustofluidic bubble-driven micromixers for the rational engineering of multifunctional ZnO nanoarray

Yonghai Zhang et al.

Summary: This paper introduces a robust acoustofluidic bubble-driven micromixer for the controllable synthesis of functional nano-array inside a glass capillary, which exhibits efficient photodegradation and metal ion enrichment. The morphology, density, and size of the nano-array can be precisely adjusted by reactant type, seeding phase, and reaction time. The ZnO nanorod array shows superior degradation efficiency and Cu2+ enrichment performance.

CHEMICAL ENGINEERING JOURNAL (2022)

Article Chemistry, Analytical

A cost-effective serpentine micromixer utilizing ellipse curve

Xin Wang et al.

Summary: The serpentine micromixer with ellipse curve design shows improved mixing performance and reduced pressure drop compared to traditional zigzag and square-wave designs. By utilizing Dean vortices induced by the continuous change in flow direction through ellipse curves, this novel micromixer is more cost-effective for rapid mixing in complex microfluidic systems.

ANALYTICA CHIMICA ACTA (2021)

Article Thermodynamics

A comprehensive geometrical study on an induced-charge electrokinetic micromixer equipped with electrically conductive plates

Morteza Nazari et al.

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER (2020)

Article Chemistry, Analytical

Probe-lengthening amplification-assisted microchip electrophoresis for ultrasensitive bacteria screening

Feifei Luo et al.

SENSORS AND ACTUATORS B-CHEMICAL (2020)

Review Chemistry, Analytical

A decade of microchip electrophoresis for clinical diagnostics - A review of 2008-2017

Alain Wuethrich et al.

ANALYTICA CHIMICA ACTA (2019)

Article Biochemical Research Methods

Chemiluminescence noncompetitive immunoassay based on microchip electrophoresis for the determination of p-subunit of human chorionic gonadotropin

Shuting Li et al.

JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES (2017)

Article Engineering, Chemical

Shear dispersion in combined pressure-driven and electro-osmotic flows in a channel with porous walls

Morteza Dejam et al.

CHEMICAL ENGINEERING SCIENCE (2015)

Article Chemistry, Analytical

Separation of Ions in Nanofluidic Channels with Combined Pressure-Driven and Electro-Osmotic Flow

Dirk Gillespie et al.

ANALYTICAL CHEMISTRY (2013)

Article Biochemical Research Methods

Competitive immunoassay of progesterone by microchip electrophoresis with chemiluminescence detection

Fanggui Ye et al.

JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES (2013)

Article Engineering, Environmental

Mixing enhancement by simple periodic geometric features in microchannels

Yuqiang Fang et al.

CHEMICAL ENGINEERING JOURNAL (2012)

Article Thermodynamics

Characteristics of combined electroosmotic flow and pressure-driven flow in microchannels with complex-wavy surfaces

Ching-Chang Cho et al.

INTERNATIONAL JOURNAL OF THERMAL SCIENCES (2012)

Article Thermodynamics

Concentration enhancement of sample solutes in a sudden expansion microchannel with Joule heating

Zhengwei Ge et al.

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER (2010)

Article Mechanics

Dynamics of field-amplified sample stacking

R Bharadwaj et al.

JOURNAL OF FLUID MECHANICS (2005)

Article Chemistry, Analytical

Capillary electrophoresis microchip coupled with on-line chemiluminescence detection

RG Su et al.

ANALYTICA CHIMICA ACTA (2004)

Article Thermodynamics

Joule heating effect on electroosmotic flow and mass species transport in a microcapillary

GY Tang et al.

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER (2004)