Oil Droplets
Oil Droplets - Related Videos
13:19
Enhanced Oil Recovery using a Combination of Biosurfactants
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Cited by 3 •
2022
We illustrate the methods involved in screening and identification of the biosurfactant producing microbes. Methods for chromatographic characterization and chemical identification of the biosurfactants, determining the industrial applicability of the biosurfactant in enhancing residual oil recovery are also presented.
07:43
Plasmid Stability Analysis with Open-Source Droplet Microfluidics
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2024
An accessible, open-source microfluidic workflow is presented for the parallelized analysis of plasmid retention in bacteria. By employing fluorescence microscopy to quantify plasmid presence in single-cell microcolonies within gel microdroplets, this method provides a precise, accessible, and scalable alternative to traditional plate counting.
08:39
Quantification of Circular RNAs Using Digital Droplet PCR
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Cited by 8 •
2022
This protocol describes the detailed method of digital droplet PCR (dd-PCR) for precise quantification of circular RNA (circRNA) levels in cells using divergent primers.
14:16
Fluorescence detection methods for microfluidic droplet platforms
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Cited by 20 •
2011
Droplet-based microfluidic platforms are promising candidates for high throughput experimentation since they are able to generate picoliter, self-compartmentalized vessels inexpensively at kHz rates. Through integration with fast, sensitive and high resolution fluorescence spectroscopic methods, the large amounts of information generated within these systems can be efficiently extracted, harnessed and utilized.
10:52
Reconstitution of Basic Mitotic Spindles in Spherical Emulsion Droplets
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Cited by 19 •
2016
The assembly and positioning of the mitotic spindle depend on the combined forces generated by microtubule dynamics, motor proteins and cross-linkers. Here we present our recently developed methods in which the geometrical confinement of spherical emulsion droplets is used for the bottom-up reconstitution of basic mitotic spindles.
FAQs
Smaller droplets form when shear, mixing, or controlled breakup supplies enough deformation to overcome the oil’s cohesive forces. Increasing the disruptive action can therefore change the resulting droplet size, while interfacial tension resists that breakup and favors a more compact interface. Controlling this balance helps engineers tune dispersed-phase dimensions for emulsions and droplet-based microfluidic systems.
Interfacial tension acts at the oil–water boundary and resists changes in droplet shape and area. Fluid flow must provide sufficient stress to deform or divide the droplet, so the competition between flow and interfacial forces influences breakup behavior. Engineers use this relationship to understand droplet formation and to design multiphase devices with more predictable dispersed-fluid behavior.
Surfactants adsorb at the oil–water interface and reduce coalescence, the joining of separate droplets into a larger one. By limiting this merging process, they can help preserve a dispersed droplet population after formation. Their interfacial action is especially relevant when engineers need more stable emulsions or consistent droplet transport during processing and operation.
Viscosity and flow conditions influence how readily droplets deform, move, and respond to applied mixing or shear. These variables can alter transport and the outcome of droplet breakup, even when the fluids and interfaces remain the same. Evaluating them together helps engineers optimize multiphase flow systems and avoid designs that produce poorly controlled droplet behavior.
Engineers commonly examine droplet size distributions and interfacial behavior to assess whether a system is performing as intended. A size distribution shows how consistently the process produces droplets, while interfacial measurements help indicate how droplets may deform or remain dispersed. These observations support process optimization, comparison of operating conditions, and design of more stable fluid systems.
Oil droplets support several engineering applications, including emulsion processing, droplet-based microfluidics, lubrication, separation, and thermal or chemical systems. The relevant design goal differs by application: engineers may prioritize stability, transport, controlled breakup, or interfacial behavior. Understanding droplet size and response to flow allows multiphase devices and fluid processes to be tailored to their intended performance.