Digital light processing-based 3D printing of polytetrafluoroethylene solid microneedle arrays
This study evaluated the structural and skin penetration properties of solid microneedle arrays made by digital light processing-based 3D printing of polytetrafluoroethylene. Confocal laser scanning microscopy and scanning electron microscopy revealed that the microneedles exhibited uniform heights. Raman spectroscopy, X-ray photoelectron spectroscopy, nanoindentation, and contact angle results indicated that the composition, carbon–fluorine bonding, reduced elastic modulus, and contact angle values of the 3D-printed polytetrafluoroethylene corresponded with those of bulk polytetrafluoroethylene, respectively. Methyl blue was used to evaluate the human skin penetration functionality of the microneedle array. Our results indicate that digital light processing is appropriate for manufacturing polytetrafluoroethylene medical devices. Graphical abstract: [Figure not available: see fulltext.].
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- 5104 Condensed matter physics
- 4016 Materials engineering
- 0912 Materials Engineering
Citation
Published In
DOI
EISSN
ISSN
Publication Date
Volume
Issue
Start / End Page
Related Subject Headings
- 5104 Condensed matter physics
- 4016 Materials engineering
- 0912 Materials Engineering