Article
Chemistry, Analytical
Erik M. Werner, Benjamin X. Lam, Elliot E. Hui
Summary: Microfluidic droplet generation often requires a stabilization period of a few minutes until the droplet volume reaches monodisperse production. This initial period may lead to material loss, which is problematic when preparing droplets from limited samples. We propose a fully integrated device that utilizes on-chip pneumatic logic for controlling phase-optimized peristaltic pumping, resulting in rapid and stable droplet generation.
Review
Biochemical Research Methods
Killian C. O'Connell, James P. Landers
Summary: Centrifugal microfluidics is a powerful technology that can be applied to various fields for fundamental research and practical applications. The integration of simple interfaces and automation of complex workflows are still crucial for realizing the full potential of this technology. Membranes offer cost-effective and versatile materials that can enhance the advantages of microdevices. This review explores the importance of these two technologies, their benefits when combined, and provides recommendations for their further development.
Article
Nanoscience & Nanotechnology
Alberto Martin-Perez, Daniel Ramos
Summary: Microfluidics is a versatile technique for analyzing flowing particles and measuring the mechanical properties of biological cells using hydrodynamic forces. However, there is currently no available method for directly measuring and tracking these hydrodynamic forces. This study introduces a novel approach using suspended microchannel resonators (SMRs) to directly measure the hydrodynamic force on flowing particles by analyzing the induced resonance changes. The sensitivity of this measurement depends on the device used, so the geometry and materials of the SMRs were considered to improve the dependence on SMR resonance frequency.
MICROSYSTEMS & NANOENGINEERING
(2023)
Article
Nanoscience & Nanotechnology
Dandara Velasco Anez, Celine Hadji, Enric Santanach-Carreras, Elise Lorenceau, Cyril Picard
Summary: In the emerging field of deformable microfluidics, a new geometry is proposed to control the height and angle of a channel. The study focuses on addressing micro-nanoconfinement problems such as clogging, transport selectivity, and flow rectification using fluorescence microscopy and light absorption to probe the channel shape. The maximal PDMS displacement is demonstrated to be predictable through numerical simulations and simple analytical relations from elasticity continuum mechanics.
MICROFLUIDICS AND NANOFLUIDICS
(2021)
Article
Chemistry, Analytical
Donatas Pelenis, Gailius Vanagas, Dovydas Barauskas, Mindaugas Dzikaras, Marius Mikolajunas, Darius Virzonis
Summary: The effect of microchannel height on acoustic streaming velocity and CMUT cell damping was investigated. Both simulated and measured data show local minima and maxima of acoustic streaming efficiency associated with the wavelength of the bulk acoustic wave excited. Microchannel heights that are not multiples of half the wavelength are more favorable for higher acoustic streaming effectiveness. At optimum conditions, an acoustic streaming velocity of over 2 mm/s in a 1.8 mm-high microchannel was achieved.
Article
Chemistry, Multidisciplinary
Kento Yamagishi, Terry Ching, Nicole Chian, Martin Tan, Wenshen Zhou, Shao Ying Huang, Michinao Hashimoto
Summary: This study presents a method for fabricating microfluidic electronics with 3D interconnected networks using DIW-based 3D printing. The integration of electronic elements and injection of liquid metal enables the creation of flexible and stretchable liquid metal antenna coils in support-free microchannels.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Engineering, Environmental
Li Dai, Minjie Shan, Jianping Li, Jianqi Chen, Wenjie Lv, Pengbo Fu, Hongpeng Ma, Hualin Wang
Summary: This study investigated the synergistic separation of particulate pollutants and organic pollutants in carbon black wastewater using deep bed filtration. The results showed high separation efficiencies and a reduction in organic pollutants, meeting China's sewage discharge standards.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2022)
Article
Biochemistry & Molecular Biology
Tarik Eljaddi, Corinne Cabassud
Summary: This study compares the structural properties, permeability, wettability, and wetting of photothermal membranes prepared with different materials, and finds that MoS2 and carbon black-based photothermal membranes exhibit better characteristics.
Article
Thermodynamics
Tiancheng Ouyang, Xiaomin Shi, Xiaoyi Hu, Wenjun Liu, Xinru Tan
Summary: In this study, a two-dimensional model of a dual-electrolyte self-pumping microfluidic fuel cell with Pd-coated carbon cloth electrodes is created using multidisciplinary theory. Multiple physical fields are coupled to investigate the internal operating mechanism of the fuel cell. The accuracy of the numerical model is verified by comparing the simulation results with experimental data.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Chemistry, Analytical
Reverson Fernandes Quero, Brenda Maria de Castro Costa, Jose Alberto Fracassi da Silva, Dosil Pereira de Jesus
Summary: In this study, the FDM 3D printing method was utilized for the first time to fabricate a microchip capillary electrophoresis (MCE) with integrated electrodes for capacitively coupled contactless conductivity detection. By optimizing the printing parameters, a device with optimized electrode distance and excitation signal frequency was successfully fabricated, achieving efficient separation and detection of a mixture.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Physical
Zhenfei Liu, Dingding Ye, Xun Zhu, Shaolong Wang, Rong Chen, Yang Yang, Qiang Liao
Summary: This study introduces a self-pumping membraneless microfluidic fuel cell utilizing carbon cloth electrodes and Na2SO4-imbibed polyacrylamide gel as the ion-transport medium. The flow of fuel and oxidant is driven by capillary force without the need for external pumps, achieving a peak power density of 8.9 mW cm(-2).
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Multidisciplinary
Juhee Ko, Faheem Khan, Youngsuk Nam, Bong Jae Lee, Jungchul Lee
Summary: This paper introduces a heater-integrated fluidic resonator (HFRs) that enables fast, quantitative, alignment-free, and wide-range temperature modulation and simultaneously offers resistive thermometry and resonant densitometry. The HFR opens up a new avenue for nanoscale thermal analysis and processing.
Review
Chemistry, Physical
Ziwen Yuan, Yanxi Yu, Xiao Sui, Yuanyuan Yao, Yuan Chen
Summary: Carbon composite membranes show great potential for addressing the challenges in thermal-driven membrane processes, such as MD and PV. Recent research has focused on developing these membranes and enhancing their performance and stability, creating antifouling properties, and resolving the trade-off between permeability and selectivity. Further studies have also explored new MD processes enabled by carbon materials, highlighting the promising future research directions in this field.
Article
Automation & Control Systems
Heba Mansour, Emad A. Soliman, Ahmed M. Fath El-Bab, Ahmed L. Abdel-Mawgood
Summary: This study investigated the feasibility of using laser ablation to fabricate epoxy resin-based microfluidic chips. The chemical and thermal properties of the epoxy resin were characterized, and migration tests were performed. The results showed that CO2 laser microfabrication is a quick and cost-effective method for producing high-quality microchannels.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Chemistry, Analytical
Yi-Cheng Tsai, Cheng-Sheng Lin, Chang-Ni Lin, Keng-Fu Hsu, Gwo-Bin Lee
Summary: The study established an integrated microfluidic system for screening specific and sensitive aptamers in clinical tissue sections, which can be used as biosensing probes for cancer detection.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)