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In-Situ High Resolution Dynamic X-ray Microtomographic Imaging of Olive Oil Removal in Kitchen Sponges by Squeezing
Abhishek Shastry1,2, Paolo E Palacio-Mancheno3, Karl Braeckman4
1Radiation Physics Research Group, Department of Physics and Astronomy, Ghent University, Proeftuinstraat 86/N12, B-9000 Gent, Belgium. Abhishek.Shastry@UGent.be.
Materials (Basel, Switzerland)
|August 22, 2018
Summary
High-resolution 4D X-ray tomography (4D-μCT) visualized fatty liquid removal from sponges. Brominated vegetable oil enhanced contrast, enabling nearly 99% cleaning efficiency assessment.
Area of Science:
- Materials Science
- Chemical Engineering
- Imaging Technology
Background:
- Polyurethane kitchen sponges absorb and retain fatty liquids.
- Effective cleaning is crucial to prevent bacterial growth.
- Non-invasive methods are needed to study cleaning dynamics.
Purpose of the Study:
- To apply 4D X-ray tomography (4D-μCT) for visualizing fat removal from sponges.
- To evaluate the effectiveness of detergents in cleaning contrasted fatty liquids.
- To establish a method for quantifying cleaning efficiency in porous materials.
Main Methods:
- Utilized high-resolution 4D-μCT for in-situ dynamic imaging.
- Employed brominated vegetable oil as a fat-sensitive X-ray contrast agent.
- Developed a laboratory loading device for simulating rinsing and squeezing within the μCT system.
Main Results:
- Demonstrated time-dependent imaging of fatty liquid removal from polyurethane sponges.
- Identified brominated vegetable oil as a superior contrast agent over magnetite powder.
- Quantified nearly 99% cleaning efficiency for contrasted olive oil using detergents.
Conclusions:
- 4D-μCT with contrast agents provides realistic mimicry of cleaning processes.
- This technique allows for accurate evaluation of detergent effectiveness in porous media.
- The method aids in assessing cleaning efficacy to minimize bacterial proliferation.
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