Investigating the design of macromolecular-based inks for two-photon 3D laser printing

Two-photon 3D laser printing (2PLP) is one of the most versatile methods for additive manufacturing of micro- to nano-scale objects with arbitrary geometries and fine features. With advancing technological capability and accessibility, the demand for new and versatile inks is increasing, with a tren...

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Hauptverfasser: Catt, Samantha (VerfasserIn) , Vázquez-Martel, Clara (VerfasserIn) , Blasco, Eva (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 10 December 2024
In: Molecular systems design & engineering
Year: 2024, Pages: 1-8
ISSN:2058-9689
DOI:10.1039/D4ME00160E
Online-Zugang:Verlag, kostenfrei, Volltext: https://doi.org/10.1039/D4ME00160E
Verlag, kostenfrei, Volltext: https://pubs.rsc.org/en/content/articlelanding/2025/me/d4me00160e
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Verfasserangaben:Samantha O. Catt, Clara Vazquez-Martel and Eva Blasco

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520 |a Two-photon 3D laser printing (2PLP) is one of the most versatile methods for additive manufacturing of micro- to nano-scale objects with arbitrary geometries and fine features. With advancing technological capability and accessibility, the demand for new and versatile inks is increasing, with a trend toward printing functional or responsive structures. One approach for ink design is the use of a macromolecular ink consisting of a ‘pre-polymer’ functionalized with photocrosslinkable groups to enable printability. However, so far the synthesis of pre-polymer inks for 2PLP often relies on an arbitrary choice rather than systematic design. Additionally, current structure-property relationship studies are limited to commercial or small molecule-based inks. Herein, three macromolecular inks with varied compositions, molecular weights, and glass transition temperatures are synthesized and formulated into inks for 2PLP. 3D microstructures are fabricated and characterized in-depth with scanning electron microscopy as well as infrared spectroscopy and nanoindentation to enable the determination of structure-processability-property relationships. Overall, it is clearly demonstrated that the macromolecular design plays a role in the printability and mechanical properties of the obtained materials. 
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