Particle Dispersion Separation
Particle Dispersion Separation - Related Videos
10:37
Procedure to Evaluate the Efficiency of Flocculants for the Removal of Dispersed Particles from Plant Extracts
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Cited by 6 •
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The design-of-experiments procedure presented here allows the evaluation of different flocculants in terms of their ability to aggregate dispersed particles in plant extracts, thus reducing turbidity and the costs of downstream processing.
10:31
Diffuse Reflectance Infrared Spectroscopic Identification of Dispersant/Particle Bonding Mechanisms in Functional Inks
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Cited by 11 •
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Formulation of stable, functional inks is critical to expanding the applications of additive manufacturing. In turn, knowledge of the mechanisms of dispersant/particle bonding is required for effective ink formulation. Diffuse Reflectance Fourier Transform Infrared Spectroscopy (DRIFTS) is presented as a simple, inexpensive way to gain insight into these mechanisms.
09:35
Dispersion of Nanomaterials in Aqueous Media: Towards Protocol Optimization
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Cited by 71 •
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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.
11:32
A Microfluidic Platform for Precision Small-volume Sample Processing and Its Use to Size Separate Biological Particles with an Acoustic Microdevice
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Cited by 9 •
2015
This protocol describes a system architecture for performing automated small volume (0.15–1.5 ml) particle separations using a microfluidic device, and discusses methods to optimize acoustofluidic device performance and operation.
00:54
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...
FAQs
Separation performance depends on how the applied force interacts with particle properties. Gravity and centrifugal acceleration promote particle movement associated with settling, whereas pressure-driven flow pushes the fluid through a medium. A filter or other medium can also use selective interactions to retain particles. Choosing the driving force helps match the method to the suspension and the desired separated fraction.
These properties determine how particles respond when a dispersed system experiences an applied force or encounters a separation medium. Differences in size or density can produce different movement during settling or acceleration, while surface properties and mobility influence selective interactions and passage through a medium. Greater contrast among particles can therefore support more effective isolation or characterization.
Particle concentration, solvent conditions, and aggregation affect how reproducibly particles move or remain retained during separation. Aggregation changes the particulate state being processed, while concentration and solvent conditions influence the behavior of the dispersion. Controlling these variables helps prevent inconsistent settling, passage, or retention and improves the efficiency and reproducibility of chemical sample preparation.
Filtration uses a filter or medium to determine which particles pass through or remain retained. Sedimentation relies on gravity-driven movement, while centrifugation applies centrifugal acceleration to produce separation. These approaches differ in their driving forces and retention mechanisms, so the choice depends on the particle properties, fluid conditions, and whether the goal is purification, particulate characterization, or sample preparation.
First, assess the suspended particles, fluid, and relevant differences in size, density, surface properties, or mobility. Next, select a suitable force or separation medium, while controlling particle concentration, solvent conditions, and aggregation. Apply the chosen separation process, then distinguish the settled, passed, or retained material according to the intended purification or analytical use.
Centrifugation is suitable when centrifugal acceleration can produce useful differences in particle movement within a suspension. It provides an alternative to relying only on gravity and can be selected when the separation objective involves isolating particulate material or preparing a sample for analysis. Its effectiveness still depends on particle properties and controlled dispersion conditions.
The methods can purify suspensions, isolate particulate material, characterize particulate components, and prepare samples for subsequent analysis. Separation outcomes may include material that settles, passes through a medium, or remains retained. By controlling concentration, solvent conditions, and aggregation, chemists can improve the consistency of these outcomes in laboratory and industrial processes.