Xolography for 3D Printing in Microgravity DOI
Niklas F. König,

Marcus Reuter,

Manfred Reuß

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 13, 2024

Abstract Xolography is a volumetric 3D printing technique utilizing intersecting light beams within volume of photopolymer for spatially controlled photopolymerization. Unlike layer‐based methods, creates structures continuously closed vat, eliminating the prevalent need support and allowing full geometrical freedom at high speeds. The working principle does not rely on gravity, making an outstanding technology additive manufacturing under microgravity conditions as illustrated in set experiments during parabolic flight campaign. environment obviates rheology control resins, enabling use low‐viscosity formulations (e.g., 11 mPa s) while maintaining fast precise acrylic polymer resins hydrogels. Xolography's speed reliability facilitate rapid iterations print task between Earth's gravity conditions. This capability positions ideal tool material research space, offering significant cost efficiency advantages over traditional methods.

Language: Английский

Volumetric Additive Manufacturing of SiOC by Xolography DOI
Kai Huang, Giorgia Franchin, Paolo Colombo

et al.

Small, Journal Year: 2024, Volume and Issue: 20(37)

Published: May 10, 2024

Additive manufacturing (AM) of ceramics has significantly contributed to advancements in ceramic fabrication, solving some the difficulties conventional processing and providing additional possibilities for structure function components. However, defects induced by layer-by-layer approach on which traditional AM techniques are based still constitute a challenge address. This study presents volumetric SiOC from preceramic polymer using xolography, linear process that allows avoid staircase effect typical other vat photopolymerization techniques. Besides optimizing trade-off between content transmittance, pore generator is introduced create transient channels gas release before decomposition organic constituents moieties, resulting crack-free solid structures even at low yield. Formulation optimization alleviated sinking printed parts during printing prevented shape distortion. Complex porous with smooth surface sharp features fabricated under optimized parameters. work provides new method µm/mm scale high quality large geometry variety an efficient way, opening possibility applications fields such as micromechanical systems microelectronic

Language: Английский

Citations

4
Xolography for Biomedical Applications: Dual‐Color Light‐Sheet Printing of Hydrogels With Local Control Over Shape and Stiffness DOI Creative Commons

Lena Stoecker,

Gerardo Cedillo‐Servín, Niklas F. König

et al.

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 27, 2025

Abstract Current challenges in tissue engineering include creation of extracellular environments that support and interact with cells using biochemical, mechanical, structural cues. Spatial control over these cues is currently limited due to a lack suitable fabrication techniques. This study introduces Xolography, an emerging dual‐color light‐sheet volumetric printing technology, achieve mechanical features for hydrogel‐based photoresins at micro‐ macroscale while within minutes. A water‐soluble photoswitch photoinitiator system library naturally‐derived, synthetic, thermoresponsive hydrogels Xolography are proposed. Centimeter‐scale, 3D constructs positive 20 µm negative ≈100 fabricated properties (compressive moduli 0.2 kPa–6.5 MPa). Notably, switching from binary grayscaled light projection enables spatial stiffness (0.2–16 kPa). As proof concept, leveraged introduce reversible anisotropic shape changes beyond isometric shrinkage. viable cell aggregates finally demonstrated, laying the foundation cell‐laden dynamic, cell‐instructive tunable fast one‐step process. Overall, innovations unlock unique possibilities across multiple biomedical applications.

Language: Английский

Citations

0
The road ahead in materials and technologies for volumetric 3D printing DOI
Paulina Núñez Bernal,

Sammy Florczak,

Sebastian Inacker

et al.

Nature Reviews Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 18, 2025

Language: Английский

Citations

0
Linear volumetric additive manufacturing of zirconia from a transparent photopolymerizable ceramic slurry via Xolography DOI Creative Commons
Johanna C. Sänger, Niklas F. König, Anna De Marzi

et al.

Open Ceramics, Journal Year: 2024, Volume and Issue: 19, P. 100655 - 100655

Published: Aug. 10, 2024

Advanced ceramics printed with photon-based additive manufacturing deals anisotropic mechanical properties from the layer-by-layer manufacturing. Motivated by success in using highly filled transparent slurries containing nanoparticles for powder-based two-photon-polymerization (2PP) advanced ceramic printing, this works approach is transfer to Xolography, a volumetric technology based on linear two-photon excitation and without recoating steps. This paper reports results of preliminary investigation optimizing photocurable slurry requirements Xolography terms transparency, over significantly larger mean free path, compared 2PP. A feedstock 70 % weight fraction particles (∼30 vol%) exhibiting an exceptionally high degree transparency relevant wavelength range 400–800 nm was prepared 5 zirconia nanoparticles. The attributed near-monomodal particle size distribution used.

Language: Английский

Citations

3
Trends in Photopolymerization 3D Printing for Advanced Drug Delivery Applications DOI Creative Commons
Yu Hu, Zhi Luo, Yinyin Bao

et al.

Biomacromolecules, Journal Year: 2024, Volume and Issue: 26(1), P. 85 - 117

Published: Dec. 3, 2024

Since its invention in the 1980s, photopolymerization-based 3D printing has attracted significant attention for capability to fabricate complex microstructures with high precision, by leveraging light patterning initiate polymerization and cross-linking liquid resin materials. Such precision makes it particularly suitable biomedical applications, particular, advanced customized drug delivery systems. This review summarizes latest advancements photopolymerization technology development of biocompatible and/or biodegradable materials that have been used or shown potential field delivery. The loading methods release characteristics systems are summarized. Importantly, recent trends applications based on printing, including oral formulations, microneedles, implantable devices, microrobots recently emerging systems, analyzed. In end, challenges opportunities discussed.

Language: Английский

Citations

3
Xolography for 3D Printing in Microgravity DOI
Niklas F. König,

Marcus Reuter,

Manfred Reuß

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 13, 2024

Abstract Xolography is a volumetric 3D printing technique utilizing intersecting light beams within volume of photopolymer for spatially controlled photopolymerization. Unlike layer‐based methods, creates structures continuously closed vat, eliminating the prevalent need support and allowing full geometrical freedom at high speeds. The working principle does not rely on gravity, making an outstanding technology additive manufacturing under microgravity conditions as illustrated in set experiments during parabolic flight campaign. environment obviates rheology control resins, enabling use low‐viscosity formulations (e.g., 11 mPa s) while maintaining fast precise acrylic polymer resins hydrogels. Xolography's speed reliability facilitate rapid iterations print task between Earth's gravity conditions. This capability positions ideal tool material research space, offering significant cost efficiency advantages over traditional methods.

Language: Английский

Citations

2