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Digital light processing (DLP) 3D printing of atomoxetine hydrochloride tablets using photoreactive suspensions

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2020
Digital_Light_Processing_pub_2020.pdf (4.855Mb)
Authors
Krkobabić, Mirjana
Medarević, Đorđe
Pešić, Nikola
Vasiljević, Dragana
Ivković, Branka
Ibrić, Svetlana
Article (Published version)
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Abstract
Three-dimensional (3D) printing technologies are based on successive material printing layer-by-layer and are considered suitable for the production of dosage forms customized for a patient’s needs. In this study, tablets of atomoxetine hydrochloride (ATH) have been successfully fabricated by a digital light processing (DLP) 3D printing technology. Initial materials were photoreactive suspensions, composed of poly(ethylene glycol) diacrylate 700 (PEGDA 700), poly(ethylene glycol) 400 (PEG 400), photoinitiator and suspended ATH. The amount of ATH was varied from 10.00 to 25.00% (w/w), and a range of doses from 12.21 to 40.07 mg has been achieved, indicating the possibility of personalized therapy. The rheological characteristics of all photoreactive suspensions were appropriate for the printing process, while the amount of the suspended particles in the photoreactive suspensions had an impact on the 3D printing process, as well as on mechanical and biopharmaceutical characteristics of t...ablets. Only the formulation with the highest content of ATH had significantly different tensile strength compared to other formulations. All tablets showed sustained drug release during at least the 8h. ATH crystals were observed with polarized light microscopy of photoreactive suspensions and the cross-sections of the tablets, while no interactions between ATH and polymers were detected by FT-IR spectroscopy.

Keywords:
Photopolymerization / Sustained release / Three-dimensional (3D) printing / Digital light processing (DLP) / Personalized therapy / Photoreactive suspensions
Source:
Pharmaceutics, 2020, 12, 9, 1-17
Publisher:
  • MDPI AG
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/pharmaceutics12090833

ISSN: 1999-4923

WoS: 000586089800001

Scopus: 2-s2.0-85092435862
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URI
https://farfar.pharmacy.bg.ac.rs/handle/123456789/3710
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  • Radovi istraživača / Researchers’ publications
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Pharmacy

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