Smith G. (2015) Podium presentation at 7th International Conference ISLFD; 2015 July 06-10; Barcelona, Spain.pdf (4.07 MB)
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Process Analytical Technology and the Question of Scale. 7th International Conference ISLFD; 2015 July 06-10; Barcelona, Spain

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posted on 30.04.2020 by Geoff Smith
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Smith, G. (2015) Process Analytical Technology and the Question of Scale. Podium presentation at 7th ISLFD International Conference; 2015 July 06-10; Barcelona, Spain

Outline of the presentation
1. Highlight from the CDER PAT guidance document (2004)
2. Brief overview of scale lengths in terms of pharmaceutical freeze-drying (from the molecular and the mesoscopic to the macroscopic)
3. Features and limitations of existing PAT
4. An overview of through-vial impedance spectroscopy (TVIS)
5. TVIS Applications & Challenges:
Ice formation
Phase behaviour (TEU and TG
Annealing & structural relaxation
Various scales (freeze-drier heterogeneity, ice front shape)
6. TVIS Future developments

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