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Laser Structuring of Soft Materials: Laser-Induced Forward Transfer and Two-Photon Polymerization

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Advances in the Application of Lasers in Materials Science

Abstract

This chapter discusses recent progress in 2D and 3D printing technologies, in particular laser-induced forward transfer and two-photon polymerization (TPP) . We explore their potential for applications in micro-electronics, protein microarrays , sensors and biosensors, and tissue engineering. An overview of the factors that affect patterning, miniaturization and functionality is presented. A special focus is placed on laser direct writing via TPP for the fabrication of 3D vertical microtubes acting as microreservoirs for an osteogenic drug.

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Acknowledgements

This work was supported by the Romanian National Program 4N/2016, the Paul Scherrer Institut (Switzerland), and grants of the Romanian National Authority for Scientific Research and Innovation, CNCS—UEFISCDI, project number PN-II-RU-TE-2014-4-2311 (Flex-SENS), PNII-PT-PCCA-2013-4-1992 (SOLE), PN-II-RU-TE-2014-4-2534 and PN-III-P2-2.1-PED-2016-1715 (HERMESH). A part of this work (two photon polymerization experiments) was carried out in the CETAL laser facility, supported by the National Program PN 16 47—LAPLAS IV.

The authors would like to thank Dr. Catalin Luculescu for the SEM analysis, Catalin Stelian Tuta for the drug release measurements by HPLC, and Dr. Marian Zamfirescu from CETAL-INFLPR for assistance with the software design of the microstructures.

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The authors declare no competing interests.

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Stokker-Cheregi, F., Palla-Papavlu, A., Paun, I.A., Lippert, T., Dinescu, M. (2018). Laser Structuring of Soft Materials: Laser-Induced Forward Transfer and Two-Photon Polymerization. In: Ossi, P. (eds) Advances in the Application of Lasers in Materials Science. Springer Series in Materials Science, vol 274. Springer, Cham. https://doi.org/10.1007/978-3-319-96845-2_9

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