Rotating Disk Reactor
Rotating Disk Reactor - Related Videos
08:08
The Use of Drip Flow and Rotating Disk Reactors for Staphylococcus aureus Biofilm Analysis
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Cited by 37 •
2010
Protocols for utilizing open system flow biofilms with drip flow reactors and rotating disk reactors are presented in detail.
11:00
Liquid Phase Reactor: Sucrose Inversion
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2023
Source: Kerry M. Dooley and Michael G. Benton, Department of Chemical Engineering, Louisiana State University, Baton Rouge, LA Both batch and continuous flow reactors are used in catalytic reactions. Packed beds, which use solid catalysts and a continuous flow, are the most common configuration. In the absence of an extensive recycle stream, such packed bed reactors are typically modeled as "plug flow". The other most common continuous reactor is a stirred tank, which is assumed to be perfectly...
12:12
On the Preparation and Testing of Fuel Cell Catalysts Using the Thin Film Rotating Disk Electrode Method
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Cited by 47 •
2018
Preparing and testing Pt/C fuel cell catalysts is subject to continuous discussion in the scientific community with respect to reproducibility and best practice. With the presented work, we intend to present a step-by-step tutorial to make and test Pt/C catalysts, which can serve as benchmark for novel catalyst systems.
05:56
Operation of High-pressure Reactor Vessels
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2023
Robert M Rioux, Pennsylvania State University, University Park, PA The use of gases in a synthetic chemistry laboratory is essential for carrying out a variety of highly facile and atom economical transformations. Reactions such as hydrogenation, oxidation, and amination require the use of gases like hydrogen, oxygen, and ammonia. Due to the poor solubility of these gases in typical reactant solutions, high pressures are necessary to achieve a meaningful reaction rate. Not only are these gases...
08:56
Catalytic Reactor: Hydrogenation of Ethylene
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2023
Source: Kerry M. Dooley and Michael G. Benton, Department of Chemical Engineering, Louisiana State University, Baton Rouge, LA The hydrogenation of ethylene (C2H4) to ethane (C2H6) has often been studied as a model reduction reaction in characterizing new metal catalysts.1-2 While supported nickel is not the most active metal catalyst for this reaction, it is active enough that reaction can take place at < 200°C. The reaction typically involves adsorbed, dissociated hydrogen (H2) reacting...
FAQs
Rotation changes the fluid environment at the disk in two linked ways: it generates shear forces and continually renews the liquid boundary layer, the thin region adjacent to the surface. These effects regulate how microorganisms encounter and remain on the disk, while also influencing growth and biofilm formation. Adjusting operating conditions therefore lets investigators examine mechanical and flow-dependent infection-related phenotypes.
Shear is important because attached microbes experience mechanical stress rather than a static liquid environment. Boundary-layer renewal also changes surface exposure and mass transfer, meaning transport between the liquid and disk can be studied under controlled flow conditions. Comparing different rotational conditions helps determine whether altered attachment, growth, or biofilm formation reflects fluid mechanics rather than uncontrolled variation.
Rotating Disk Reactor experiments are especially useful when reproducibility matters. The defined disk geometry and operating conditions provide a consistent basis for comparing microbial behavior across experiments, including surface attachment and biofilm development. This controlled setup can reveal how changes in flow or mechanical stress affect infection-related phenotypes, while reducing ambiguity caused by poorly defined exposure conditions.
Researchers can vary rotation-related operating conditions and use the reactor’s controlled geometry to alter fluid movement, surface exposure, mass transfer, and mechanical stress. The resulting setup supports deliberate comparisons of microbial attachment, growth, and biofilm formation under different flow environments. Because no single fixed protocol is specified, exact settings should be selected according to the experimental question.
These reactors can support antimicrobial treatment studies by exposing surface-associated pathogens to defined flow and mechanical conditions while treatment effects are examined. Researchers can compare how an intervention influences attachment, growth, or biofilm formation in a controlled surface environment. That design is useful when treatment performance may depend on the physical stresses and mass-transfer conditions present during infection.
In infection research, the system can help build models that represent pathogens attached to surfaces rather than only freely suspended microbes. Its controlled geometry and operating conditions are relevant to medical-device infection models and chronic disease studies, where persistent surface association and biofilm formation are important outcomes. The platform also enables comparisons of how flow conditions shape these infection-related behaviors.