Flexibly actuated pneumatic extrusion with in-situ monitoring for direct ink writing of heterogeneous and pressure-vulnerable materials
Abstract This study presents a novel piston-driven pneumatic extrusion system for direct ink writing (DIW), featuring flexible actuation and real-time monitoring of extrusion pressure. The design integrates the benefits of both pressure and feedrate control, achieving consistent linewidth while safe...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-08-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-025-15164-9 |
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| author | Chaiwuth Sithiwichankit Setthibhak Suthithanakom Kantawatchr Chaiprabha Kai Melde Ratchatin Chancharoen |
| author_facet | Chaiwuth Sithiwichankit Setthibhak Suthithanakom Kantawatchr Chaiprabha Kai Melde Ratchatin Chancharoen |
| author_sort | Chaiwuth Sithiwichankit |
| collection | DOAJ |
| description | Abstract This study presents a novel piston-driven pneumatic extrusion system for direct ink writing (DIW), featuring flexible actuation and real-time monitoring of extrusion pressure. The design integrates the benefits of both pressure and feedrate control, achieving consistent linewidth while safeguarding pressure-sensitive materials such as cell-laden hydrogels. The system comprises a lightweight pneumatic syringe on the printhead and a stationary actuation unit, allowing efficient decoupling of motion and extrusion. Experiments demonstrate stable gelatin extrusion with a mean linewidth of 4.32 mm and a minimal increase ratio of 0.012 over printing distance. These findings show promise for advancing DIW with emerging soft materials, particularly in bioprinting and sustainable manufacturing. |
| format | Article |
| id | doaj-art-dca320231ac142f0b0b46db2fbc80d0b |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-dca320231ac142f0b0b46db2fbc80d0b2025-08-24T11:18:52ZengNature PortfolioScientific Reports2045-23222025-08-0115111610.1038/s41598-025-15164-9Flexibly actuated pneumatic extrusion with in-situ monitoring for direct ink writing of heterogeneous and pressure-vulnerable materialsChaiwuth Sithiwichankit0Setthibhak Suthithanakom1Kantawatchr Chaiprabha2Kai Melde3Ratchatin Chancharoen4Department of Mechanical Engineering, Faculty of Engineering, Chulalongkorn UniversityInstitute for Molecular Systems Engineering and Advanced Materials, Heidelberg UniversityDepartment of Mechanical Engineering, Faculty of Engineering, Chulalongkorn UniversityInstitute for Molecular Systems Engineering and Advanced Materials, Heidelberg UniversityDepartment of Mechanical Engineering, Faculty of Engineering, Chulalongkorn UniversityAbstract This study presents a novel piston-driven pneumatic extrusion system for direct ink writing (DIW), featuring flexible actuation and real-time monitoring of extrusion pressure. The design integrates the benefits of both pressure and feedrate control, achieving consistent linewidth while safeguarding pressure-sensitive materials such as cell-laden hydrogels. The system comprises a lightweight pneumatic syringe on the printhead and a stationary actuation unit, allowing efficient decoupling of motion and extrusion. Experiments demonstrate stable gelatin extrusion with a mean linewidth of 4.32 mm and a minimal increase ratio of 0.012 over printing distance. These findings show promise for advancing DIW with emerging soft materials, particularly in bioprinting and sustainable manufacturing.https://doi.org/10.1038/s41598-025-15164-9Direct ink writingMaterial extrusionBioprintingFlexible actuationIn-situ monitoring |
| spellingShingle | Chaiwuth Sithiwichankit Setthibhak Suthithanakom Kantawatchr Chaiprabha Kai Melde Ratchatin Chancharoen Flexibly actuated pneumatic extrusion with in-situ monitoring for direct ink writing of heterogeneous and pressure-vulnerable materials Scientific Reports Direct ink writing Material extrusion Bioprinting Flexible actuation In-situ monitoring |
| title | Flexibly actuated pneumatic extrusion with in-situ monitoring for direct ink writing of heterogeneous and pressure-vulnerable materials |
| title_full | Flexibly actuated pneumatic extrusion with in-situ monitoring for direct ink writing of heterogeneous and pressure-vulnerable materials |
| title_fullStr | Flexibly actuated pneumatic extrusion with in-situ monitoring for direct ink writing of heterogeneous and pressure-vulnerable materials |
| title_full_unstemmed | Flexibly actuated pneumatic extrusion with in-situ monitoring for direct ink writing of heterogeneous and pressure-vulnerable materials |
| title_short | Flexibly actuated pneumatic extrusion with in-situ monitoring for direct ink writing of heterogeneous and pressure-vulnerable materials |
| title_sort | flexibly actuated pneumatic extrusion with in situ monitoring for direct ink writing of heterogeneous and pressure vulnerable materials |
| topic | Direct ink writing Material extrusion Bioprinting Flexible actuation In-situ monitoring |
| url | https://doi.org/10.1038/s41598-025-15164-9 |
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