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In-situ high resolution dynamic X-ray microtomographic imaging of olive oil removal in kitchen sponges by squeezing and rinsing

(2018) MATERIALS. 11(8).
Author
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Project
BIOCLEAN (BIOfilm management and CLEANing by leveraging fundamental understanding of biological, chemical and physical combined approaches)
Abstract
Recent advances in high resolution X-ray tomography (mu CT) technology have enabled in-situ dynamic mu CT imaging (4D-mu CT) of time-dependent processes inside 3D structures, non-destructively and non-invasively. This paper illustrates the application of 4D-mu CT for visualizing the removal of fatty liquids from kitchen sponges made of polyurethane after rinsing (absorption), squeezing (desorption) and cleaning (adding detergents). For the first time, time-dependent imaging of this type of system was established with sufficiently large contrast gradient between water (with/without detergent) and olive oil (model fat) by the application of suitable fat-sensitive X-ray contrast agents. Thus, contrasted olive oil filled sponges were rinsed and squeezed in a unique laboratory loading device with a fluid flow channel designed to fit inside a rotating gantry-based X-ray mu CT system. Results suggest the use of brominated vegetable oil as a preferred contrast agent over magnetite powder for enhancing the attenuation coefficient of olive oil in a multi fluid filled kitchen sponge. The contrast agent (brominated vegetable oil) and olive oil were mixed and subsequently added on to the sponge. There was no disintegration seen in the mixture of contrast agent and olive oil during the cleaning process by detergents. The application of contrast agents also helped in accurately tracking the movement and volume changes of soils in compressed open cell structures. With the in house-built cleaning device, it was quantified that almost 99% of cleaning was possible for contrasted olive oil (brominated vegetable oil with olive oil) dispersed in the sponge. This novel approach allowed for realistic mimicking of the cleaning process and provided closer evaluation of the effectiveness of cleaning by detergents to minimize bacterial growth.
Keywords
X-ray mu CT, in-situ experiments, flow cell, CONTRAST AGENTS, COMPUTED-TOMOGRAPHY, MICRO-CT, RELATIVE PERMEABILITY, ELECTRON-MICROSCOPY, PORE-SCALE, VISUALIZATION, QUANTIFICATION, NANOPARTICLES, FOAMS

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Citation

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Chicago
Shastry, Abhishek, Paolo Palacio-Mancheno, Karl Braeckman, Sander Vanheule, Iván Josipovic, Frederic Van Assche, Eric Robles, Veerle Cnudde, Luc Van Hoorebeke, and Matthieu Boone. 2018. “In-situ High Resolution Dynamic X-ray Microtomographic Imaging of Olive Oil Removal in Kitchen Sponges by Squeezing and Rinsing.” Materials 11 (8).
APA
Shastry, A., Palacio-Mancheno, P., Braeckman, K., Vanheule, S., Josipovic, I., Van Assche, F., Robles, E., et al. (2018). In-situ high resolution dynamic X-ray microtomographic imaging of olive oil removal in kitchen sponges by squeezing and rinsing. MATERIALS, 11(8).
Vancouver
1.
Shastry A, Palacio-Mancheno P, Braeckman K, Vanheule S, Josipovic I, Van Assche F, et al. In-situ high resolution dynamic X-ray microtomographic imaging of olive oil removal in kitchen sponges by squeezing and rinsing. MATERIALS. 2018;11(8).
MLA
Shastry, Abhishek, Paolo Palacio-Mancheno, Karl Braeckman, et al. “In-situ High Resolution Dynamic X-ray Microtomographic Imaging of Olive Oil Removal in Kitchen Sponges by Squeezing and Rinsing.” MATERIALS 11.8 (2018): n. pag. Print.
@article{8571465,
  abstract     = {Recent advances in high resolution X-ray tomography (mu CT) technology have enabled in-situ dynamic mu CT imaging (4D-mu CT) of time-dependent processes inside 3D structures, non-destructively and non-invasively. This paper illustrates the application of 4D-mu CT for visualizing the removal of fatty liquids from kitchen sponges made of polyurethane after rinsing (absorption), squeezing (desorption) and cleaning (adding detergents). For the first time, time-dependent imaging of this type of system was established with sufficiently large contrast gradient between water (with/without detergent) and olive oil (model fat) by the application of suitable fat-sensitive X-ray contrast agents. Thus, contrasted olive oil filled sponges were rinsed and squeezed in a unique laboratory loading device with a fluid flow channel designed to fit inside a rotating gantry-based X-ray mu CT system. Results suggest the use of brominated vegetable oil as a preferred contrast agent over magnetite powder for enhancing the attenuation coefficient of olive oil in a multi fluid filled kitchen sponge. The contrast agent (brominated vegetable oil) and olive oil were mixed and subsequently added on to the sponge. There was no disintegration seen in the mixture of contrast agent and olive oil during the cleaning process by detergents. The application of contrast agents also helped in accurately tracking the movement and volume changes of soils in compressed open cell structures. With the in house-built cleaning device, it was quantified that almost 99\% of cleaning was possible for contrasted olive oil (brominated vegetable oil with olive oil) dispersed in the sponge. This novel approach allowed for realistic mimicking of the cleaning process and provided closer evaluation of the effectiveness of cleaning by detergents to minimize bacterial growth.},
  articleno    = {1482},
  author       = {Shastry, Abhishek and Palacio-Mancheno, Paolo and Braeckman, Karl and Vanheule, Sander and Josipovic, Iv{\'a}n and Van Assche, Frederic and Robles, Eric and Cnudde, Veerle and Van Hoorebeke, Luc and Boone, Matthieu},
  issn         = {1996-1944},
  journal      = {MATERIALS},
  language     = {eng},
  number       = {8},
  pages        = {15},
  title        = {In-situ high resolution dynamic X-ray microtomographic imaging of olive oil removal in kitchen sponges by squeezing and rinsing},
  url          = {http://dx.doi.org/10.3390/ma11081482},
  volume       = {11},
  year         = {2018},
}

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