Fast 3D printing of fine, continuous, and soft fibers via embedded solvent exchange

Abstract Nature uses fibrous structures for sensing and structural functions as observed in hairs, whiskers, stereocilia, spider silks, and hagfish slime thread skeins. Here, we demonstrate multi-nozzle printing of 3D hair arrays having freeform trajectories at a very high rate, with fiber diameters...

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Main Authors: Wonsik Eom, Mohammad Tanver Hossain, Vidush Parasramka, Jeongmin Kim, Ryan W. Y. Siu, Kate A. Sanders, Dakota Piorkowski, Andrew Lowe, Hyun Gi Koh, Michael F. L. De Volder, Douglas S. Fudge, Randy H. Ewoldt, Sameh H. Tawfick
Format: Article
Language:English
Published: Nature Portfolio 2025-01-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-025-55972-1
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author Wonsik Eom
Mohammad Tanver Hossain
Vidush Parasramka
Jeongmin Kim
Ryan W. Y. Siu
Kate A. Sanders
Dakota Piorkowski
Andrew Lowe
Hyun Gi Koh
Michael F. L. De Volder
Douglas S. Fudge
Randy H. Ewoldt
Sameh H. Tawfick
author_facet Wonsik Eom
Mohammad Tanver Hossain
Vidush Parasramka
Jeongmin Kim
Ryan W. Y. Siu
Kate A. Sanders
Dakota Piorkowski
Andrew Lowe
Hyun Gi Koh
Michael F. L. De Volder
Douglas S. Fudge
Randy H. Ewoldt
Sameh H. Tawfick
author_sort Wonsik Eom
collection DOAJ
description Abstract Nature uses fibrous structures for sensing and structural functions as observed in hairs, whiskers, stereocilia, spider silks, and hagfish slime thread skeins. Here, we demonstrate multi-nozzle printing of 3D hair arrays having freeform trajectories at a very high rate, with fiber diameters as fine as 1.5 µm, continuous lengths reaching tens of centimeters, and a wide range of materials with elastic moduli from 5 MPa to 3500 MPa. This is achieved via 3D printing by rapid solvent exchange in high yield stress micro granular gel, leading to radial solidification of the extruded polymer filament at a rate of 2.33 μm/s. This process extrudes filaments at 5 mm/s, which is 500,000 times faster than meniscus printing owing to the rapid solidification which prevents capillarity-induced fiber breakage. This study demonstrates the potential of 3D printing by rapid solvent exchange as a fast and scalable process for replicating natural fibrous structures for use in biomimetic functions.
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issn 2041-1723
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publishDate 2025-01-01
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spelling doaj-art-2e3e8ddbbb684cd8b0d4f7def69ec0982025-01-26T12:40:24ZengNature PortfolioNature Communications2041-17232025-01-0116111510.1038/s41467-025-55972-1Fast 3D printing of fine, continuous, and soft fibers via embedded solvent exchangeWonsik Eom0Mohammad Tanver Hossain1Vidush Parasramka2Jeongmin Kim3Ryan W. Y. Siu4Kate A. Sanders5Dakota Piorkowski6Andrew Lowe7Hyun Gi Koh8Michael F. L. De Volder9Douglas S. Fudge10Randy H. Ewoldt11Sameh H. Tawfick12Department of Fiber Convergence Material Engineering, Dankook UniversityDepartment of Mechanical Science and Engineering, The Grainger College of Engineering, University of Illinois Urbana-ChampaignDepartment of Mechanical Science and Engineering, The Grainger College of Engineering, University of Illinois Urbana-ChampaignDepartment of Mechanical Science and Engineering, The Grainger College of Engineering, University of Illinois Urbana-ChampaignDepartment of Mechanical Science and Engineering, The Grainger College of Engineering, University of Illinois Urbana-ChampaignDepartment of Engineering, University of CambridgeSchmid College of Science and Technology, Chapman UniversitySchmid College of Science and Technology, Chapman UniversityDepartment of Biological and Chemical Engineering, Hongik UniversityDepartment of Engineering, University of CambridgeSchmid College of Science and Technology, Chapman UniversityDepartment of Mechanical Science and Engineering, The Grainger College of Engineering, University of Illinois Urbana-ChampaignDepartment of Mechanical Science and Engineering, The Grainger College of Engineering, University of Illinois Urbana-ChampaignAbstract Nature uses fibrous structures for sensing and structural functions as observed in hairs, whiskers, stereocilia, spider silks, and hagfish slime thread skeins. Here, we demonstrate multi-nozzle printing of 3D hair arrays having freeform trajectories at a very high rate, with fiber diameters as fine as 1.5 µm, continuous lengths reaching tens of centimeters, and a wide range of materials with elastic moduli from 5 MPa to 3500 MPa. This is achieved via 3D printing by rapid solvent exchange in high yield stress micro granular gel, leading to radial solidification of the extruded polymer filament at a rate of 2.33 μm/s. This process extrudes filaments at 5 mm/s, which is 500,000 times faster than meniscus printing owing to the rapid solidification which prevents capillarity-induced fiber breakage. This study demonstrates the potential of 3D printing by rapid solvent exchange as a fast and scalable process for replicating natural fibrous structures for use in biomimetic functions.https://doi.org/10.1038/s41467-025-55972-1
spellingShingle Wonsik Eom
Mohammad Tanver Hossain
Vidush Parasramka
Jeongmin Kim
Ryan W. Y. Siu
Kate A. Sanders
Dakota Piorkowski
Andrew Lowe
Hyun Gi Koh
Michael F. L. De Volder
Douglas S. Fudge
Randy H. Ewoldt
Sameh H. Tawfick
Fast 3D printing of fine, continuous, and soft fibers via embedded solvent exchange
Nature Communications
title Fast 3D printing of fine, continuous, and soft fibers via embedded solvent exchange
title_full Fast 3D printing of fine, continuous, and soft fibers via embedded solvent exchange
title_fullStr Fast 3D printing of fine, continuous, and soft fibers via embedded solvent exchange
title_full_unstemmed Fast 3D printing of fine, continuous, and soft fibers via embedded solvent exchange
title_short Fast 3D printing of fine, continuous, and soft fibers via embedded solvent exchange
title_sort fast 3d printing of fine continuous and soft fibers via embedded solvent exchange
url https://doi.org/10.1038/s41467-025-55972-1
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