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Making tablets for delivery of poorly soluble drugs using photoinitiated 3D inkjet printing

Clark, Elizabeth A.; Alexander, Morgan R.; Irvine, Derek J.; Roberts, Clive J.; Wallace, Martin J.; Yoo, Jae; Wildman, Ricky D.


Elizabeth A. Clark

Professor of Materials Chemistry

Martin J. Wallace

Jae Yoo

Professor of Multiphase Flow and Mechanics


© 2019 In this study, we investigate the viability of three-dimensional (3D) inkjet printing with UV curing to produce solid dosage forms containing a known poorly soluble drug, carvedilol. The formulation consists of 10 wt% carvedilol, Irgacure 2959, and a photocurable N-vinyl-2-pyrrolidone (NVP) and poly(ethylene glycol) diacrylate matrix, with the intention of forming an amorphous solid solution for release of carvedilol. Characterization of the printed tablets showed that the drug is an amorphous state and indicated hydrogen bonding interactions between the drug and cross-linked matrix. Several simple geometries (ring, mesh, cylinder, thin film) were printed, and the surface area to volume ratio of the prints was estimated. Over 80% carvedilol release was observed for all printed tablet geometries within ten hours. The release behaviour of carvedilol was fastest for the thin films, followed by the ring and mesh geometries, and slowest in the cylindrical forms. More rapid release was correlated to an increased surface area to volume ratio. This is the first study to implement 3D UV inkjet to make solid dispersion tablets suitable for poorly soluble drugs. Results also demonstrate that high drug-loaded tablets with a variety of release profiles can successfully be accessed with the same UV-curable inkjet formulation by varying the tablet geometry.


Yoo, J., Clark, E. A., Wallace, M. J., Irvine, D. J., Alexander, M. R., Roberts, C. J., & Wildman, R. D. (2020). Making tablets for delivery of poorly soluble drugs using photoinitiated 3D inkjet printing. International Journal of Pharmaceutics, 578,

Journal Article Type Article
Acceptance Date Oct 15, 2019
Online Publication Date Nov 9, 2019
Publication Date Mar 30, 2020
Deposit Date Dec 4, 2019
Publicly Available Date Nov 10, 2020
Journal International Journal of Pharmaceutics
Print ISSN 0378-5173
Electronic ISSN 1873-3476
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 578
Article Number 118805
Keywords Pharmaceutical Science
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