Economidou, Sophia, Pissinato Pere, Cristiane, Okereke, Michael ORCID: https://orcid.org/0000-0002-2104-012X and Douroumis, Dionysios ORCID: https://orcid.org/0000-0002-3782-0091 (2021) Optimisation of design and manufacturing parameters of 3D printed solid microneedles for improved strength, sharpness, and drug delivery. Micromachines, 12 (2). ISSN 2072-666X (doi:10.3390/mi12020117)

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Abstract

3D printing has emerged as a powerful manufacturing technology and has attracted significant attention for the fabrication of microneedle (MN)-mediated transdermal systems. In this work, we describe an optimisation strategy for 3D-printed MNs, ranging from the design to the drug delivery stage. The key relationships between design and manufacturing parameters and quality and performance are systematically explored. The printing and post-printing set parameters were found to influence quality and material mechanical properties, respectively. It was demonstrated that the MN geometry affected piercing behaviour, fracture, and coating morphology. The delivery of insulin in porcine skin by inkjet-coated MNs was shown to be influenced by MN design.

Item Type:	Article
Uncontrolled Keywords:	microneedles; 3D printing; stereolithography; optimisation; inkjet coating
Subjects:	Q Science > Q Science (General)
Faculty / School / Research Centre / Research Group:	Faculty of Engineering & Science Faculty of Engineering & Science > Centre for Innovation and Process Engineering in Research (CIPER) Faculty of Engineering & Science > School of Science (SCI)
Last Modified:	04 May 2022 08:07
URI:	http://gala.gre.ac.uk/id/eprint/36006

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