Microdroplet Chips
Microdroplet Chips - Related Videos
03:20
Real-Time Monitoring of Bacterial Growth Using a Microfluidic Microdroplet Culture System
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2025
Source: Jian, X. et. al., Automated Microbial Cultivation and Adaptive Evolution using Microbial Microdroplet Culture System (MMC). J. Vis. Exp. (2022)This video demonstrates the use of a microfluidic droplet-based platform for real-time monitoring of bacterial growth. By generating uniform droplets containing bacterial suspensions and guiding them through a detection pathway, the system enables continuous optical measurement of cell density to construct a growth curve.
03:42
Adaptive Evolution of Bacteria Using a Microbial Microdroplet Culture System
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2025
Source: Jian, X., et al., Automated Microbial Cultivation and Adaptive Evolution using Microbial Microdroplet Culture System (MMC). J. Vis. Exp. (2022).This video demonstrates the use of a microbial microdroplet culture system to drive adaptive evolution of bacteria toward methanol tolerance. By mixing engineered bacterial cultures with a high-methanol stress medium and segmenting them into microdroplets, the system selects for mutants that exhibit improved growth under methanol stress. Through...
08:20
Capillary-based Centrifugal Microfluidic Device for Size-controllable Formation of Monodisperse Microdroplets
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Cited by 9 •
2016
Here, we demonstrate a simple production method for size-controllable, monodisperse, water-in-oil (W/O) microdroplets using a capillary-based centrifugal microfluidic device. This method requires only a small sample volume and enables high-yield production. We expect this method will be useful for rapid biochemical and cellular analyses.
07:50
Chip-Based Digital PCR to Detect Rare Transcript Variants Using a Nanofluidic Chip
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2025
This video demonstrates chip-based digital PCR — a variation of the digital PCR technique that is useful in detecting rare transcript variants. The PCR reaction is partitioned into the chambers of a nanofluidic chip, each of which acts as an independent reaction. The detection of fluorescence signals from the chambers with amplified targets confirms the presence of rare transcript variants in the sample.
01:35
Organ-on-Chip Models
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2026
Introduction to Organ-on-Chip Models Organ-on-chip models are advanced microphysiological systems that recreate key structural and functional features of human organs in a controlled laboratory setting. These devices integrate living human cells within microfluidic channels, allowing researchers to simulate tissue–tissue interfaces, fluid flow, and mechanical forces that are essential for normal organ function. Unlike traditional cell cultures, which often lack these dynamic physiological cues,...
FAQs
Droplet formation depends on how immiscible fluids move through the chip and encounter the channel geometry. These factors determine when one fluid becomes segmented within the other and help regulate droplet size, spacing, and composition. Controlling these parameters gives researchers more consistent reaction compartments and supports reproducible chemical experiments across many droplets.
The interface between immiscible fluids provides a controlled boundary that influences mass transfer between phases. Because each droplet has a small, defined volume and substantial interfacial area, reactants can mix and exchange more efficiently within the compartment. This supports rapid chemical processing and helps researchers examine how interfacial conditions affect reactions, assays, and material formation.
Droplet composition, residence time, and interfacial area are key variables that researchers can regulate. Composition determines which reactants or samples are present, residence time controls how long they remain under reaction conditions, and interfacial area affects transfer between phases. Coordinating these properties allows chemical processes to be studied or optimized with improved control and reproducibility.
Separating reactions into isolated droplets limits contact between neighboring samples and reduces cross-contamination. Each compartment can maintain its own chemical composition while moving through the same microfluidic network. This arrangement is especially valuable when many conditions are tested in parallel, because individual reactions remain more distinct and require only small quantities of material.
A typical workflow introduces immiscible fluids into microfluidic channels, uses flow conditions and channel geometry to segment one phase into droplets, and then transports those compartments through the device. Researchers regulate droplet composition, residence time, and interfacial conditions during passage. The resulting droplets can serve as controlled environments for reactions, analysis, or formation of chemical materials.
These chips are useful when researchers need to evaluate many chemical conditions while conserving samples. Isolated droplets can provide separate reaction environments for high-throughput screening, with controlled composition and residence time across experiments. The approach can also improve reproducibility, making it suitable for comparing reaction behavior and identifying conditions for chemical synthesis or analysis.
Microdroplet-chip experiments can support analytical assays, particle and material formation, and investigations of reaction kinetics. Controlled droplet environments allow researchers to examine how chemical behavior changes with residence time, composition, and interfacial area. In chemistry, these measurements help connect reaction conditions with observed products, analytical responses, or rates while limiting sample consumption.