2021
DOI: 10.3390/ma14092187
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Characterization of Open-Cell Sponges via Magnetic Resonance and X-ray Tomography

Abstract: The applications of polymeric sponges are varied, ranging from cleaning and filtration to medical applications. The specific properties of polymeric foams, such as pore size and connectivity, are dependent on their constituent materials and production methods. Nuclear magnetic resonance imaging (MRI) and X-ray micro-computed tomography (µCT) offer complementary information about the structure and properties of porous media. In this study, we employed MRI, in combination with µCT, to characterize the structure … Show more

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“…Therefore, solids have typically lower MR T 2 relaxation times compared to liquids. Additionally, MR T 2 relaxation time is also sensitive to chemical exchange and internal magnetic field gradients [41], in the presence of interfaces between materials of different magnetic susceptibilities, which is measured by MR T 2 * [39]. In the case of MRI, measured T 2 relaxation times can be sensitive to diffusion, to an extent dependent on the experimental imaging parameters.…”
Section: Discussionmentioning
confidence: 99%
“…Therefore, solids have typically lower MR T 2 relaxation times compared to liquids. Additionally, MR T 2 relaxation time is also sensitive to chemical exchange and internal magnetic field gradients [41], in the presence of interfaces between materials of different magnetic susceptibilities, which is measured by MR T 2 * [39]. In the case of MRI, measured T 2 relaxation times can be sensitive to diffusion, to an extent dependent on the experimental imaging parameters.…”
Section: Discussionmentioning
confidence: 99%