1
|
Wang Y, Zheng L, Li G. Self-propulsion of a droplet induced by combined diffusiophoresis and Marangoni effects. Electrophoresis 2024. [PMID: 38528332 DOI: 10.1002/elps.202400005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 02/22/2024] [Accepted: 03/12/2024] [Indexed: 03/27/2024]
Abstract
Chemically active droplets display complex self-propulsion behavior in homogeneous surfactant solutions, often influenced by the interplay between diffusiophoresis and Marangoni effects. Previous studies have primarily considered these effects separately or assumed axisymmetric motion. To understand the full hydrodynamics, we investigate the motion of a two-dimensional active droplet under their combined influences using weakly nonlinear analysis and numerical simulations. The impact of two key factors, the Péclet number (P e $Pe$ ) and the mobility ratio between diffusiophoretic and Marangoni effects ( m $m$ ), on droplet motion is explored. We establish a phase diagram in theP e - m $Pe-m$ space, categorizing the boundaries between four types of droplet states: stationary, steady motion, periodic/quasi-periodic motion, and chaotic motion. We find that the mobility ratio does not affect the criticalP e $Pe$ for the onset of self-propulsion, but it significantly influences the stability of high-wavenumber modes as well as the droplet's velocity and trajectory. Scaling analysis reveals that in the highP e $Pe$ regime, the Marangoni and diffusiophoresis effects lead to distinct velocity scaling laws:U ∼ P e - 1 / 2 $U\sim Pe^{-1/2}$ andU ∼ P e - 1 / 3 $U\sim Pe^{-1/3}$ , respectively. When these effects are combined, the velocity scaling depends on the sign of the mobility ratio. In cases with a positive mobility ratio, the Marangoni effect dominates the scaling, whereas the negative diffusiophoretic effect leads to an increased thickness of the concentration boundary layer and a flattened scaling of the droplet velocity.
Collapse
Affiliation(s)
- Yuhang Wang
- School of Ocean and Civil Engineering, Shanghai Jiaotong University, Shanghai, China
| | - Longtao Zheng
- School of Ocean and Civil Engineering, Shanghai Jiaotong University, Shanghai, China
| | - Gaojin Li
- School of Ocean and Civil Engineering, Shanghai Jiaotong University, Shanghai, China
| |
Collapse
|
2
|
Wang J, Zhang M, Liu W, Kong M, Zhan M, Wu X, Wu H, Feng Z, Xu X. Method for Measuring the Three-Dimensional Morphology of Near-Wall Bubbles and Droplets Based on LED Digital Holography. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:2039-2049. [PMID: 38239095 DOI: 10.1021/acs.langmuir.3c02680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2024]
Abstract
Digital holography, recognized for its noncontact nature and high precision in three-dimensional imaging, is effectively employed to measure the morphology of bubbles and droplets. However, in terms of near-wall bubbles and droplets, such as confined bubbles in microfluidic chips, the measurement of the interface morphology of bubbles near the glass surface has not yet been resolved due to the coherent noise resulting from glass surface reflections in microfluidic chips. Accordingly, an off-axis digital holography system was devised by using Linnik interferometry. Measuring the confined bubble interface near the wall within a microfluidic chip and droplet evaporation on solid surfaces was studied. Partially coherent LED sources and reference light modulation techniques were employed in the optical setup to mitigate the coherent noise. Dual exposure and weighted least-squares unwrapping algorithms were introduced to correct phase distortions, enhancing image quality. Imaging two confined CO2 bubbles was done near the wall in silicon oil within a porous microfluidic chip, and contact angles of 4.7 and 4.5° were measured. Additionally, the measurement of the three-dimensional morphology of vertically evaporating deionized water droplets on a glass surface was done, due to which calculation of contact angles at various orientations was possible. This work offers a feasible new method for measuring the 3D interface morphology of bubbles and droplets, particularly in microfluidic visualization, addressing current measurement gaps.
Collapse
Affiliation(s)
- Jinqing Wang
- The Institute for Energy Engineering, China Jiliang University, Hangzhou 310018, P. R. China
| | - Muan Zhang
- The Institute for Energy Engineering, China Jiliang University, Hangzhou 310018, P. R. China
| | - Wei Liu
- The Institute for Energy Engineering, China Jiliang University, Hangzhou 310018, P. R. China
| | - Ming Kong
- The Institute for Energy Engineering, China Jiliang University, Hangzhou 310018, P. R. China
| | - Mingxiu Zhan
- The Institute for Energy Engineering, China Jiliang University, Hangzhou 310018, P. R. China
| | - Xuhui Wu
- The Institute for Energy Engineering, China Jiliang University, Hangzhou 310018, P. R. China
| | - Hao Wu
- The Institute for Energy Engineering, China Jiliang University, Hangzhou 310018, P. R. China
| | - Zhi Feng
- The Institute for Energy Engineering, China Jiliang University, Hangzhou 310018, P. R. China
| | - Xu Xu
- The Institute for Energy Engineering, China Jiliang University, Hangzhou 310018, P. R. China
| |
Collapse
|
3
|
Aljabali AAA, Obeid MA, Mishra V, El-Tanani M, Tambuwala MM. Customizable Microfluidic Devices: Progress, Constraints, and Future Advances. Curr Drug Deliv 2024; 21:1285-1299. [PMID: 39034714 DOI: 10.2174/0115672018264064231017113813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 08/13/2023] [Accepted: 08/31/2023] [Indexed: 07/23/2024]
Abstract
The field of microfluidics encompasses the study of fluid behavior within micro-channels and the development of miniature systems featuring internal compartments or passageways tailored for fluid control and manipulation. Microfluidic devices capitalize on the unique chemical and physical properties exhibited by fluids at the microscopic scale. In contrast to their larger counterparts, microfluidic systems offer a multitude of advantages. Their implementation facilitates the investigation and utilization of reduced sample, solvent, and reagent volumes, thus yielding decreased operational expenses. Owing to their compact dimensions, these devices allow for the concurrent execution of multiple procedures, leading to expedited experimental timelines. Over the past two decades, microfluidics has undergone remarkable advancements, evolving into a multifaceted discipline. Subfields such as organ-on-a-chip and paper-based microfluidics have matured into distinct fields of study. Nonetheless, while scientific progress within the microfluidics realm has been notable, its translation into autonomous end-user applications remains a frontier to be fully explored. This paper sets forth the central objective of scrutinizing the present research paradigm, prevailing limitations, and potential prospects of customizable microfluidic devices. Our inquiry revolves around the latest strides achieved, prevailing constraints, and conceivable trajectories for adaptable microfluidic technologies. We meticulously delineate existing iterations of microfluidic systems, elucidate their operational principles, deliberate upon encountered limitations, and provide a visionary outlook toward the future trajectory of microfluidic advancements. In summation, this work endeavors to shed light on the current state of microfluidic systems, underscore their operative intricacies, address incumbent challenges, and unveil promising pathways that chart the course toward the next frontier of microfluidic innovation.
Collapse
Affiliation(s)
- Alaa A A Aljabali
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Yarmouk University, Irbid 21163, Jordan
| | - Mohammad A Obeid
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Yarmouk University, Irbid 21163, Jordan
| | - Vijay Mishra
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, 144411, Punjab, India
| | - Mohamed El-Tanani
- Pharmacological and Diagnostic Research Center, Faculty of Pharmacy, Al-Ahliyya Amman University, Amman 19328, Jordan
| | - Murtaza M Tambuwala
- Lincoln Medical School, University of Lincoln, Brayford Pool Campus, Lincoln LN6 7TS, England, UK
| |
Collapse
|
4
|
Trossbach M, de Lucas Sanz M, Seashore-Ludlow B, Joensson HN. A Portable, Negative-Pressure Actuated, Dynamically Tunable Microfluidic Droplet Generator. MICROMACHINES 2022; 13:1823. [PMID: 36363843 PMCID: PMC9697964 DOI: 10.3390/mi13111823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 10/12/2022] [Accepted: 10/21/2022] [Indexed: 06/16/2023]
Abstract
Droplet microfluidics utilize a monodisperse water-in-oil emulsion, with an expanding toolbox offering a wide variety of operations on a range of droplet sizes at high throughput. However, translation of these capabilities into applications for non-expert laboratories to fully harness the inherent potential of microscale manipulations is woefully trailing behind. One major obstacle is that droplet microfluidic setups often rely on custom fabricated devices, costly liquid actuators, and are not easily set up and operated by non-specialists. This impedes wider adoption of droplet technologies in, e.g., the life sciences. Here, we demonstrate an easy-to-use minimal droplet production setup with a small footprint, built exclusively from inexpensive commercially sourced parts, powered and controlled by a laptop. We characterize the components of the system and demonstrate production of droplets ranging in volume from 3 to 21 nL in a single microfluidic device. Furthermore, we describe the dynamic tuning of droplet composition. Finally, we demonstrate the production of droplet-templated cell spheroids from primary cells, where the mobility and simplicity of the setup enables its use within a biosafety cabinet. Taken together, we believe this minimal droplet setup is ideal to drive broad adoption of droplet microfluidics technology.
Collapse
Affiliation(s)
- Martin Trossbach
- KTH Royal Institute of Technology & Science for Life Laboratory, 17165 Solna, Sweden
| | - Marta de Lucas Sanz
- KTH Royal Institute of Technology & Science for Life Laboratory, 17165 Solna, Sweden
| | | | - Haakan N. Joensson
- KTH Royal Institute of Technology & Science for Life Laboratory, 17165 Solna, Sweden
| |
Collapse
|
5
|
Research on the Centrifugal Driving of a Water-in-Oil Droplet in a Microfluidic Chip with Spiral Microchannel. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12094362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Combining the advantages of droplet-based microfluidics and centrifugal driving, a method for centrifugally driving W/O droplets with spiral microchannel is proposed in this paper. A physical model of droplet flow was established to study the flow characteristics of the W/O droplet in the spiral microchannel driven by centrifugal force, and kinematic analysis was performed based on the rigid body assumption. Then, the theoretical formula of droplet flow rate was obtained. The theoretical value was compared with the actual value measured in the experiments. The result shows that the trend of the theoretical value is consistent with the measured value, and the theoretical value is slightly larger than the experimentally measured value caused by deformation. Moreover, it is found that the mode of centrifugal driving with spiral microchannel has better flow stability than the traditional centrifugal driving structure. A larger regulation speed range can be achieved by adjusting the motor speed without using expensive equipment or precise instruments. This study can provide a basis and theoretical reference for the development of droplet-based centrifugal microfluidic chips.
Collapse
|
6
|
Zhai C, Hu C, Li S, Ma Y, Zhang Y, Guo T, Li H, Hu X. The formation principle of micro-droplets induced by using optical tweezers. NANOSCALE ADVANCES 2021; 3:279-286. [PMID: 36131882 PMCID: PMC9416808 DOI: 10.1039/d0na00705f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 11/15/2020] [Indexed: 06/15/2023]
Abstract
Utilizing droplets as micro-tools has become a valuable method in biology and chemistry. In previous work, we have demonstrated a novel droplet generation-manipulation method in a conventional optical tweezer system. Here, a further study of the droplet composition and its formation principle is performed. First, it is proved through Raman spectra that the principal component of the droplets is HPO4 2- solution. Considering that the generated droplet size is at the μm level, we have adopted a variety of methods in experiments to reduce external interference. Second, using a confocal microscopic video camera, the growth process of the droplet is completely recorded in a common glass-based chamber. The finite element simulations help us to further understand that the droplet generation process using optical tweezers can be divided into two stages: "capture" caused by optical force field and "aggregation" induced by a photothermal phenomenon and thermal acceleration. Through these studies, the nature of the optical tweezer-generated droplets is revealed. As a general principle for the droplet generation, this method will provide inspiration and prospects in the fields of microfluidics and biophysics-chemistry.
Collapse
Affiliation(s)
- Cong Zhai
- State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University Tianjin 300072 China
- Nanchang Institute for Microtechnology of Tianjin University Tianjin 300072 China
| | - Chunguang Hu
- State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University Tianjin 300072 China
- Nanchang Institute for Microtechnology of Tianjin University Tianjin 300072 China
| | - Shuai Li
- State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University Tianjin 300072 China
- Nanchang Institute for Microtechnology of Tianjin University Tianjin 300072 China
| | - Yanhua Ma
- State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University Tianjin 300072 China
- Nanchang Institute for Microtechnology of Tianjin University Tianjin 300072 China
| | - Yajing Zhang
- State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University Tianjin 300072 China
- Nanchang Institute for Microtechnology of Tianjin University Tianjin 300072 China
| | - Tong Guo
- State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University Tianjin 300072 China
- Nanchang Institute for Microtechnology of Tianjin University Tianjin 300072 China
| | - Hongbin Li
- State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University Tianjin 300072 China
- Department of Chemistry, University of British Columbia 2036 Main Mall Vancouver BC V6T 1Z1 Canada
| | - Xiaotang Hu
- State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University Tianjin 300072 China
- Nanchang Institute for Microtechnology of Tianjin University Tianjin 300072 China
| |
Collapse
|
7
|
Droplet length and generation rate investigation inside microfluidic devices by means of CFD simulations and experiments. Chem Eng Res Des 2020. [DOI: 10.1016/j.cherd.2020.07.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
8
|
LIAN JY, ZHENG SX, XU ZB, RUAN XD. Study on Co-flow Effect on Janus Droplet Generation Based on Step Emulsification. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2020. [DOI: 10.1016/s1872-2040(19)61210-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
9
|
Kim D, Echelmeier A, Cruz Villarreal J, Gandhi S, Quintana S, Egatz-Gomez A, Ros A. Electric Triggering for Enhanced Control of Droplet Generation. Anal Chem 2019; 91:9792-9799. [PMID: 31260621 DOI: 10.1021/acs.analchem.9b01449] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Serial femtosecond crystallography (SFX) is a powerful technique that uses X-ray free-electron lasers (XFEL) to determine structures of biomolecular complexes. Specifically, it benefits the study of atomic resolution structures of large membrane protein complexes and time-resolved reactions with crystallography. One major drawback of SFX studies with XFELs is the consumption of large amounts of a protein crystal sample to collect a complete X-ray diffraction data set for high-resolution crystal structures. This increases the time and resources required for sample preparation and experimentation. The intrinsic pulsed nature of all current X-ray sources is a major reason why such large amounts of sample are required. Any crystal sample that is delivered in the path of the X-ray beam during its "off-time" is wasted. To address this large sample consumption issue, we developed a 3D printed microfluidic system with integrated metal electrodes for water-in-oil droplet generation to dynamically create and manipulate aqueous droplets. We demonstrate on-demand droplet generation using DC potentials and the ability to tune the frequency of droplet generation through the application of AC potentials. More importantly, to assist with the synchronization of droplets and XFEL pulses, we show that the device can induce a phase shift in the base droplet generation frequency. This novel approach to droplet generation has the potential to reduce sample waste by more than 95% for SFX experiments with XFELs performed with liquid jets and can operate under low- and high-pressure liquid injection systems.
Collapse
Affiliation(s)
- Daihyun Kim
- School of Molecular Sciences , Arizona State University , Tempe , Arizona 85287 , United States.,Center for Applied Structural Discovery, The Biodesign Institute , Arizona State University , Tempe , Arizona 85281 , United States
| | - Austin Echelmeier
- School of Molecular Sciences , Arizona State University , Tempe , Arizona 85287 , United States.,Center for Applied Structural Discovery, The Biodesign Institute , Arizona State University , Tempe , Arizona 85281 , United States
| | - Jorvani Cruz Villarreal
- School of Molecular Sciences , Arizona State University , Tempe , Arizona 85287 , United States.,Center for Applied Structural Discovery, The Biodesign Institute , Arizona State University , Tempe , Arizona 85281 , United States
| | - Sahir Gandhi
- School of Molecular Sciences , Arizona State University , Tempe , Arizona 85287 , United States.,Center for Applied Structural Discovery, The Biodesign Institute , Arizona State University , Tempe , Arizona 85281 , United States
| | - Sebastian Quintana
- School of Molecular Sciences , Arizona State University , Tempe , Arizona 85287 , United States.,Center for Applied Structural Discovery, The Biodesign Institute , Arizona State University , Tempe , Arizona 85281 , United States
| | - Ana Egatz-Gomez
- School of Molecular Sciences , Arizona State University , Tempe , Arizona 85287 , United States.,Center for Applied Structural Discovery, The Biodesign Institute , Arizona State University , Tempe , Arizona 85281 , United States
| | - Alexandra Ros
- School of Molecular Sciences , Arizona State University , Tempe , Arizona 85287 , United States.,Center for Applied Structural Discovery, The Biodesign Institute , Arizona State University , Tempe , Arizona 85281 , United States
| |
Collapse
|
10
|
WEI YY, SUN ZQ, REN HH, LI L. Advances in Microdroplet Generation Methods. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2019. [DOI: 10.1016/s1872-2040(19)61162-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|
11
|
Damiati S, Kompella UB, Damiati SA, Kodzius R. Microfluidic Devices for Drug Delivery Systems and Drug Screening. Genes (Basel) 2018; 9:E103. [PMID: 29462948 PMCID: PMC5852599 DOI: 10.3390/genes9020103] [Citation(s) in RCA: 188] [Impact Index Per Article: 31.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2017] [Revised: 02/10/2018] [Accepted: 02/12/2018] [Indexed: 12/20/2022] Open
Abstract
Microfluidic devices present unique advantages for the development of efficient drug carrier particles, cell-free protein synthesis systems, and rapid techniques for direct drug screening. Compared to bulk methods, by efficiently controlling the geometries of the fabricated chip and the flow rates of multiphase fluids, microfluidic technology enables the generation of highly stable, uniform, monodispersed particles with higher encapsulation efficiency. Since the existing preclinical models are inefficient drug screens for predicting clinical outcomes, microfluidic platforms might offer a more rapid and cost-effective alternative. Compared to 2D cell culture systems and in vivo animal models, microfluidic 3D platforms mimic the in vivo cell systems in a simple, inexpensive manner, which allows high throughput and multiplexed drug screening at the cell, organ, and whole-body levels. In this review, the generation of appropriate drug or gene carriers including different particle types using different configurations of microfluidic devices is highlighted. Additionally, this paper discusses the emergence of fabricated microfluidic cell-free protein synthesis systems for potential use at point of care as well as cell-, organ-, and human-on-a-chip models as smart, sensitive, and reproducible platforms, allowing the investigation of the effects of drugs under conditions imitating the biological system.
Collapse
Affiliation(s)
- Samar Damiati
- Department of Biochemistry, Faculty of Science, King Abdulaziz University (KAU), Jeddah 21589, Saudi Arabia.
| | - Uday B Kompella
- Department of Pharmaceutical Sciences, Ophthalmology, and Bioengineering, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA.
| | - Safa A Damiati
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University (KAU), Jeddah 21589, Saudi Arabia.
| | - Rimantas Kodzius
- Mathematics and Natural Sciences Department, The American University of Iraq, Sulaimani, Sulaymaniyah 46001, Iraq.
- Materials Genome Institute, Shanghai University, Shanghai 200444, China.
- Faculty of Medicine, Ludwig Maximilian University of Munich (LMU), 80539 Munich, Germany.
- Faculty of Medicine, Technical University of Munich (TUM), 81675 Munich, Germany.
| |
Collapse
|
12
|
Ding L, Zong S, Dang L, Wang Z, Wei H. Effects of inorganic additives on polymorphs of glycine in microdroplets. CrystEngComm 2018. [DOI: 10.1039/c7ce01942d] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Sodium chloride plays an important role in the selectivity of glycine polymorphs and results in an increased nucleation percentage in microdroplets.
Collapse
Affiliation(s)
- Li Ding
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- P.R. China
| | - Shanghong Zong
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- P.R. China
| | - Leping Dang
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- P.R. China
| | - Zhanzhong Wang
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- P.R. China
| | - Hongyuan Wei
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- P.R. China
| |
Collapse
|
13
|
Sesen M, Alan T, Neild A. Droplet control technologies for microfluidic high throughput screening (μHTS). LAB ON A CHIP 2017. [PMID: 28631799 DOI: 10.1039/c7lc00005g] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
The transition from micro well plate and robotics based high throughput screening (HTS) to chip based screening has already started. This transition promises reduced droplet volumes thereby decreasing the amount of fluids used in these studies. Moreover, it significantly boosts throughput allowing screening to keep pace with the overwhelming number of molecular targets being discovered. In this review, we analyse state-of-the-art droplet control technologies that exhibit potential to be used in this new generation of screening devices. Since these systems are enclosed and usually planar, even some of the straightforward methods used in traditional HTS such as pipetting and reading can prove challenging to replicate in microfluidic high throughput screening (μHTS). We critically review the technologies developed for this purpose in depth, describing the underlying physics and discussing the future outlooks.
Collapse
Affiliation(s)
- Muhsincan Sesen
- Department of Mechanical and Aerospace Engineering, Monash University, Clayton, VIC 3800, Australia.
| | | | | |
Collapse
|
14
|
DING X, MU Y. Research and Application Progress of Digital Nucleic Acid Amplification Detection Techniques. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2016. [DOI: 10.1016/s1872-2040(16)60918-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
|
15
|
Chong ZZ, Tan SH, Gañán-Calvo AM, Tor SB, Loh NH, Nguyen NT. Active droplet generation in microfluidics. LAB ON A CHIP 2016; 16:35-58. [PMID: 26555381 DOI: 10.1039/c5lc01012h] [Citation(s) in RCA: 121] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
The reliable generation of micron-sized droplets is an important process for various applications in droplet-based microfluidics. The generated droplets work as a self-contained reaction platform in droplet-based lab-on-a-chip systems. With the maturity of this platform technology, sophisticated and delicate control of the droplet generation process is needed to address increasingly complex applications. This review presents the state of the art of active droplet generation concepts, which are categorized according to the nature of the induced energy. At the liquid/liquid interface, an energy imbalance leads to instability and droplet breakup.
Collapse
Affiliation(s)
- Zhuang Zhi Chong
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Say Hwa Tan
- Queensland Micro- and Nanotechnology Centre, Griffith University, 170 Kessels Road QLD 4111, Brisbane, Australia.
| | - Alfonso M Gañán-Calvo
- Depto. de Ingeniería Aeroespacial y Mecánica de Fluidos, Universidad de Sevilla, E-41092 Sevilla, Spain.
| | - Shu Beng Tor
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Ngiap Hiang Loh
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Nam-Trung Nguyen
- Queensland Micro- and Nanotechnology Centre, Griffith University, 170 Kessels Road QLD 4111, Brisbane, Australia.
| |
Collapse
|
16
|
SHEN F, LI Y, LIU ZM, CAO RT, WANG GR. Advances in Micro-Droplets Coalescence Using Microfluidics. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2015. [DOI: 10.1016/s1872-2040(15)60886-6] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
17
|
|
18
|
Abstract
Droplet microfluidics may soon change the paradigm of performing chemical analyses and related instrumentation.
Collapse
Affiliation(s)
- Evgenia Yu Basova
- Masaryk University
- CEITEC, Central European Institute Technology
- Brno
- Czech Republic
| | - Frantisek Foret
- Masaryk University
- CEITEC, Central European Institute Technology
- Brno
- Czech Republic
- Institute of Analytical Chemistry of the Academy of Sciences of the Czech Republic
| |
Collapse
|
19
|
XU Z, LI YK, WANG JY, LIU C, LIU JS, CHEN L, WANG LD. A Novel Method for Fabrication of Micro-Nanofluidic Devices and Its Application in Trace Enrichment. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2014. [DOI: 10.1016/s1872-2040(13)60707-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
20
|
ZHENG Y, HOU LY, ZHU L, WANG HC, HE JQ, ZHANG WY. Micro-reagent Dispensing Method Based on Pulse Driving & Controlling of Micro-fluids Technology and Application Research. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2014. [DOI: 10.1016/s1872-2040(13)60703-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
|