| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Diaz, Ana
Paul Scherrer Institute
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (20/20 displayed)
- 2024Phase-separated polymer blends for controlled drug delivery by tuning morphologycitations
- 20234D nanoimaging of early age cement hydrationcitations
- 20233D-Imaging of synapses in neuronal tissues with synchrotron X-ray ptychographycitations
- 2023In situ compression of micropillars under coherent X-ray diffraction: a case study of experimental and data-analysis constraintscitations
- 2023Simple Synthesis of Monodisperse Ultrasmall Au Icosahedral Nanoparticlescitations
- 2022Near-infrared analysis of nanofibrillated cellulose aerogel manufacturingcitations
- 2022Near-infrared analysis of nanofibrillated cellulose aerogel manufacturingcitations
- 2022Evolution of Hierarchically Porous Nickel Alumina Catalysts Studied by X‐Ray Ptychographycitations
- 2022Temperature-dependent dynamic plasticity of micro-scale fused silicacitations
- 2021Quantitative analysis of cementitious materials by X-ray ptychographic nanotomography
- 2020Comparison of small‐angle neutron and X‐ray scattering for studying cortical bone nanostructurecitations
- 2019Quantitative disentanglement of nanocrystalline phases in cement pastes by synchrotron ptychographic X-ray tomographycitations
- 2018Photonic materials for high-temperature applications: synthesis and characterization by X-ray ptychographic tomography
- 2017Anisotropy development during HDPE necking studied at the microscale with in situ continuous 1D SAXS scanscitations
- 2016Novel micro-reactor flow cell for investigation of model catalysts using in situ grazing-incidence X-ray scatteringcitations
- 2016Influence of gas atmospheres and ceria on the stability of nanoporous gold studied by environmental electron microscopy and in situ ptychography
- 2016Influence of gas atmospheres and ceria on the stability of nanoporous gold studied by environmental electron microscopy and in situ ptychographycitations
- 2014Scanning X-ray strain microscopy of inhomogeneously strained Ge micro-bridgescitations
- 2013Density mapping of hardened cement paste using ptychographic X-ray computed tomographycitations
- 2012Preparation and characterization of ellipsoidal-shaped thermosensitive microgel colloids with tailored aspect ratioscitations
Places of action
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article
Near-infrared analysis of nanofibrillated cellulose aerogel manufacturing
Abstract
Biomaterial aerogel fabrication by freeze-drying must be further improved to reduce the costs of lengthy freeze-drying cycles and to avoid the formation of spongy cryogels and collapse of the aerogel structures. Residual water content is a critical quality attribute of the freeze-dried product, which can be monitored in-line with near-infrared (NIR) spectroscopy. Predictive models of NIR have not been previously applied for biomaterials and the models were mostly focused on the prediction of only one formulation at a time. We recorded NIR spectra of different nanofibrillated cellulose (NFC) hydrogel formulations during the secondary drying and set up a partial least square regression model to predict their residual water contents. The model can be generalized to measure residual water of formulations with different NFC concentrations and the excipients, and the NFC fiber concentrations and excipients can be separated with the principal component analysis. Our results provide valuable information about the freeze-drying of biomaterials and aerogel fabrication, and how NIR spectroscopy can be utilized in the optimization of residual water content.