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Tailoring Atomoxetine Release Rate from DLP 3D-Printed Tablets Using Artificial Neural Networks: Influence of Tablet Thickness and Drug Loading

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2020
Tailoring_Atomoxetine_Release_pub_2020.pdf (9.148Mb)
Authors
Stanojević, Gordana
Medarević, Đorđe
Adamov, Ivana
Pešić, Nikola
Kovačević, Jovana
Ibrić, Svetlana
Article (Published version)
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Abstract
Various three-dimensional printing (3DP) technologies have been investigated so far in relation to their potential to produce customizable medicines and medical devices. The aim of this study was to examine the possibility of tailoring drug release rates from immediate to prolonged release by varying the tablet thickness and the drug loading, as well as to develop artificial neural network (ANN) predictive models for atomoxetine (ATH) release rate from DLP 3D-printed tablets. Photoreactive mixtures were comprised of poly(ethylene glycol) diacrylate (PEGDA) and poly(ethylene glycol) 400 in a constant ratio of 3:1, water, photoinitiator and ATH as a model drug whose content was varied from 5% to 20% (w/w). Designed 3D models of cylindrical shape tablets were of constant diameter, but different thickness. A series of tablets with doses ranging from 2.06 mg to 37.48 mg, exhibiting immediate- and modified-release profiles were successfully fabricated, confirming the potential of this techno...logy in manufacturing dosage forms on demand, with the possibility to adjust the dose and release behavior by varying drug loading and dimensions of tablets. DSC (differential scanning calorimetry), XRPD (X-ray powder diffraction) and microscopic analysis showed that ATH remained in a crystalline form in tablets, while FTIR spectroscopy confirmed that no interactions occurred between ATH and polymers.

Keywords:
additive manufacturing / digital light processing (DLP) / neural networks / optimization / personalized therapy / release rate / three-dimensional (3D) printing
Source:
Molecules (Basel, Switzerland), 2020, 26, 1
Publisher:
  • MDPI
Projects:
  • Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200161 (University of Belgrade, Faculty of Pharmacy) (RS-200161)

DOI: 10.3390/molecules26010111

ISSN: 1420-3049

WoS: 000606262700001

Scopus: 2-s2.0-85099242524
[ Google Scholar ]
URI
https://farfar.pharmacy.bg.ac.rs/handle/123456789/3771
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  • Radovi istraživača / Researchers’ publications
Institution
Pharmacy

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