Dispersed Phase

The dispersed phase is the component of a heterogeneous mixture that exists as discrete particles, droplets, or bubbles distributed throughout a continuous phase, a distinction important for understanding biological materials and processes. Its behavior depends on factors such as particle size, interfacial tension, Brownian motion, and the presence of stabilizing molecules that limit aggregation or coalescence. In biology, dispersed phases occur in emulsions, suspensions, colloids, and biomolecular formulations, influencing properties such as stability, transport, viscosity, and delivery. Characterizing this phase helps researchers interpret cellular environments and design diagnostic, pharmaceutical, and tissue-engineering materials.

Dispersed Phase - Related Videos

Education

JoVE Core - Biology

Distribution and Dispersion

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2026

Ecology is the study of how organisms interact with their environment and with one another. An important aspect of ecology is understanding where species are found and how individuals are distributed within those areas. The geographic range of a species refers to the total area where its members are located, while dispersion describes the pattern of spacing of individuals within that range.Geographic Range and Dispersion PatternsWithin a species’ geographic range, individuals may be distributed...

Research

JoVE Journal - Engineering
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Adapting Taylor Dispersion to Measure the Dispersion Coefficient of Electrolyte Solutions via an Accessible Microfluidic Setup

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2025

Here, we present a protocol to adapt the Taylor dispersion experiment to the microscale using microchannels fabricated in-house with a desktop craft cutter. The experimental platform can be used to compute the diffusion coefficient of single-species passive tracers and to visualize multispecies ion interaction and separation.

Detection of Biofilm Disassembly Through a Dispersion Assay

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2025

The video showcases a biofilm dispersion assay using a multi-well plate. Buffer and glucose treatment disassemble the biofilm, releasing bacteria, while bile salts induce stress, retaining bacteria in the protective extracellular polymeric substance. Higher dispersion with buffer and glucose confirms successful biofilm disassembly, estimated by colony forming units measurement.

Research

JoVE Journal - Environment
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Dispersion of Nanomaterials in Aqueous Media: Towards Protocol Optimization

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Cited by 71 •

2017

Here, we present a step-wise protocol for the dispersion of nanomaterials in aqueous media with real-time characterization to identify the optimal sonication conditions, intensity, and duration for improved stability and uniformity of nanoparticle dispersions without impacting the sample integrity.

Phase Transitions: Sublimation and Deposition

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2020

Some solids can transition directly into the gaseous state, bypassing the liquid state, via a process known as sublimation. At room temperature and standard pressure, a piece of dry ice (solid CO2) sublimes, appearing to gradually disappear without ever forming any liquid. Snow and ice sublimate at temperatures below the melting point of water, a slow process that may be accelerated by winds and the reduced atmospheric pressures at high altitudes. When solid iodine is warmed, the solid sublimes...

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