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Updated: Jun 30, 2025

Coherent anti-Stokes Raman Scattering CARS Microscopy Visualizes Pharmaceutical Tablets During Dissolution
Published on: July 4, 2014
Machine vision-based non-destructive dissolution prediction of meloxicam-containing tablets.
Lilla Alexandra Mészáros1, Lajos Madarász1, Szabina Kádár1
1Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, H-1111 Budapest, Műegyetem rakpart 3, Hungary.
This study developed a UV/VIS imaging system to predict tablet dissolution non-destructively. The machine vision approach accurately forecasts dissolution profiles and API content, supporting pharmaceutical quality control.
Area of Science:
- Pharmaceutical Technology
- Analytical Chemistry
- Image Analysis
Background:
- Machine vision systems are crucial for pharmaceutical solid dosage form quality assessment.
- These systems support continuous manufacturing, process analytical technology (PAT), quality-by-design (QbD), and real-time release testing (RTRT).
Purpose of the Study:
- To develop a digital UV/VIS imaging system for predicting the in vitro dissolution of meloxicam tablets.
- To non-destructively predict critical process parameters affecting dissolution using multivariate analysis of UV/VIS images.
Main Methods:
- Utilized UV/VIS imaging to capture tablet data.
- Applied multivariate analysis and artificial neural networks (ANNs) for dissolution profile prediction.
- Employed partial least squares (PLS) models based on UV/VIS image color components to predict API content.
Main Results:
- Achieved a prediction error (RMSE) of less than 5% for dissolution profile points.
- Predicted alterations in API content with a relative error of less than 10%.
- Demonstrated that API content directly impacts maximum concentrations observed during dissolution.
Conclusions:
- Presents a novel, non-destructive PAT solution for real-time tablet dissolution testing.
- Highlights the potential of UV/VIS imaging and machine learning for pharmaceutical quality assurance.
- Enables enhanced process understanding and control in tablet manufacturing.
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