TY - JOUR
T1 - Ptychographic X-ray computed tomography of porous membranes with nanoscale resolution
AU - Gorecki, Radoslaw
AU - Polo, Carla Cristina
AU - Kalile, Tiago Araujo
AU - Miqueles, Eduardo X. S.
AU - Tonin, Yuri R.
AU - Upadhyaya, Lakshmeesha
AU - Meneau, Florian
AU - Nunes, Suzana Pereira
N1 - KAUST Repository Item: Exported on 2023-09-05
Acknowledged KAUST grant number(s): OSR-2019-CRG8-4040.2
Acknowledgements: The authors acknowledge King Abdullah University of Science and Technology (KAUST) and thank for the funding of the project 3D Image of porous polymeric membranes by in situ advanced methods, award number OSR-2019-CRG8-4040.2. The authors also thank the Brazilian Synchrotron Light Laboratory (LNLS) for the provision of the beamtime for experiment number 20221482. The authors also thank KAUST Imaging Core Lab, particularly Dr. Valentina Musteata for discussions in the starting phase of this work.
PY - 2023/9/2
Y1 - 2023/9/2
N2 - New visualization methods can be utilized to resolve structures at resolutions that were previously unachievable. 3D images of porous materials with high resolution have been so far obtained using transmission electron tomography or focused ion beam coupled with scanning electron microscopy. For these methods, ultra-vacuum is required, and only a small volume of the sample is visualized. Here, we demonstrate the application of ptychographic X-ray computed tomography for the visualization of soft matter with a resolution of 26 nm over large fields of view. Thanks to the high-penetration depth of the X-ray beam, we visualize the 3D complex porous structure of polyetherimide hollow fibers in a non-destructive manner and obtain quantitative information about pore size distribution and pore network interconnectivity across the whole membrane wall. The non-destructive nature of this method, coupled with its ability to image samples without requiring modification or a high vacuum environment, makes it valuable in the fields of porous- and nano-material sciences enabling imaging under different environmental conditions.
AB - New visualization methods can be utilized to resolve structures at resolutions that were previously unachievable. 3D images of porous materials with high resolution have been so far obtained using transmission electron tomography or focused ion beam coupled with scanning electron microscopy. For these methods, ultra-vacuum is required, and only a small volume of the sample is visualized. Here, we demonstrate the application of ptychographic X-ray computed tomography for the visualization of soft matter with a resolution of 26 nm over large fields of view. Thanks to the high-penetration depth of the X-ray beam, we visualize the 3D complex porous structure of polyetherimide hollow fibers in a non-destructive manner and obtain quantitative information about pore size distribution and pore network interconnectivity across the whole membrane wall. The non-destructive nature of this method, coupled with its ability to image samples without requiring modification or a high vacuum environment, makes it valuable in the fields of porous- and nano-material sciences enabling imaging under different environmental conditions.
UR - http://hdl.handle.net/10754/694079
UR - https://www.nature.com/articles/s43246-023-00396-x
U2 - 10.1038/s43246-023-00396-x
DO - 10.1038/s43246-023-00396-x
M3 - Article
SN - 2662-4443
VL - 4
JO - Communications Materials
JF - Communications Materials
IS - 1
ER -