Laser-Induced Forward Transfer with Optical Stamp of a Protein-Immobilized Calcium Phosphate Film Prepared by Biomimetic Process to a Human Dentin
Open Access
- 10 November 2020
- journal article
- research article
- Published by MDPI AG in Applied Sciences
- Vol. 10 (22), 7984
- https://doi.org/10.3390/app10227984
Abstract
The rapid and area-specific printing of calcium phosphate with superior biocompatibility and osteoconductivity is a useful technique for the surface functionalization of biomedical devices. We recently demonstrated the laser-induced forward transfer (LIFT) of a brittle calcium phosphate film onto a soft and shock-absorbing polydimethylsiloxane (PDMS) substrate. In this work, a new LIFT using an optically transparent PDMS-coated stamp, which we hereafter call LIFT with optical stamp (LIFTOP), was introduced to achieve the transfer of brittle films to harder substrates. Cell adhesion protein fibronectin-immobilized calcium phosphate films (Fn-CaP) were prepared on the optical stamp through a biomimetic process. Then, the irradiation of a single laser pulse transferred the Fn-CaP film from the optical stamp onto relatively hard substrates, polyethylene terephthalate and human dentin. As a result of this LIFTOP process, Fn-CaP microchips with a shape corresponding to the laser beam spot were printed on the substrates. Cross-sectional observation of the interface between the Fn-CaP microchip and the dentin substrate revealed good attachment between them without obvious gaps for the most part.This publication has 32 references indexed in Scilit:
- Nanodot array deposition via single shot laser interference pattern using laser-induced forward transferInternational Journal of Extreme Manufacturing, 2020
- Printing of complex free-standing microstructures via laser-induced forward transfer (LIFT) of pure metal thin filmsAdditive Manufacturing, 2018
- Supersonic laser-induced jetting of aluminum micro-dropletsApplied Physics Letters, 2015
- Laser-induced forward transfer of silver nanopaste for microwave interconnectsApplied Surface Science, 2015
- On-Demand Deposition of Functional Oxide Microdots by Double-Pulse Laser-Induced Dot TransferJournal of Laser Micro/Nanoengineering, 2014
- On-Demand Patterning of Indium Tin Oxide Microdots by Laser-Induced Dot TransferApplied Physics Express, 2013
- Generation of transparent conductive electrodes by laser consolidation of LIFT printed ITO nanoparticle layersApplied Physics A, 2013
- Nano- and Microdot Array Formation of FeSi2by Nanosecond Excimer Laser-Induced Forward TransferApplied Physics Express, 2008
- Nanodroplets deposited in microarrays by femtosecond Ti:sapphire laser-induced forward transferApplied Physics Letters, 2006
- Metal deposition from a supported metal film using an excimer laserJournal of Applied Physics, 1986