An open-source handheld extruder loaded with pore-forming bioink for in situ wound dressing
The increasing demand in rapid wound dressing and healing has promoted the development of intraoperative strategies, such as intraoperative bioprinting, which allows deposition of bioinks directly at the injury sites to conform to their specific shapes and structures. Although successes have been ac...
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| Format: | Article |
| Language: | English |
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Elsevier
2020-09-01
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| Series: | Materials Today Bio |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S259000642030034X |
| _version_ | 1818727726378385408 |
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| author | G. Ying J. Manríquez D. Wu J. Zhang N. Jiang S. Maharjan D.H. Hernández Medina Y.S. Zhang |
| author_facet | G. Ying J. Manríquez D. Wu J. Zhang N. Jiang S. Maharjan D.H. Hernández Medina Y.S. Zhang |
| author_sort | G. Ying |
| collection | DOAJ |
| description | The increasing demand in rapid wound dressing and healing has promoted the development of intraoperative strategies, such as intraoperative bioprinting, which allows deposition of bioinks directly at the injury sites to conform to their specific shapes and structures. Although successes have been achieved to varying degrees, either the instrumentation remains complex and high-cost or the bioink is insufficient for desired cellular activities. Here, we report the development of a cost-effective, open-source handheld bioprinter featuring an ergonomic design, which was entirely portable powered by a battery pack. We further integrated an aqueous two-phase emulsion bioink based on gelatin methacryloyl with the handheld system, enabling convenient shape-controlled in situ bioprinting. The unique pore-forming property of the emulsion bioink facilitated liquid and oxygen transport as well as cellular proliferation and spreading, with an additional ability of good elasticity to withstand repeated mechanical compressions. These advantages of our pore-forming bioink-loaded handheld bioprinter are believed to pave a new avenue for effective wound dressing potentially in a personalized manner down the future. |
| first_indexed | 2024-12-17T22:18:41Z |
| format | Article |
| id | doaj.art-047dc2de7ca24906b18849c03a4ff4f2 |
| institution | Directory Open Access Journal |
| issn | 2590-0064 |
| language | English |
| last_indexed | 2024-12-17T22:18:41Z |
| publishDate | 2020-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials Today Bio |
| spelling | doaj.art-047dc2de7ca24906b18849c03a4ff4f22022-12-21T21:30:32ZengElsevierMaterials Today Bio2590-00642020-09-018100074An open-source handheld extruder loaded with pore-forming bioink for in situ wound dressingG. Ying0J. Manríquez1D. Wu2J. Zhang3N. Jiang4S. Maharjan5D.H. Hernández Medina6Y.S. Zhang7Division of Engineering of Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USADivision of Engineering of Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USADivision of Engineering of Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USADivision of Engineering of Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USASchool of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USADivision of Engineering of Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USADivision of Engineering of Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USADivision of Engineering of Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA; Corresponding author.The increasing demand in rapid wound dressing and healing has promoted the development of intraoperative strategies, such as intraoperative bioprinting, which allows deposition of bioinks directly at the injury sites to conform to their specific shapes and structures. Although successes have been achieved to varying degrees, either the instrumentation remains complex and high-cost or the bioink is insufficient for desired cellular activities. Here, we report the development of a cost-effective, open-source handheld bioprinter featuring an ergonomic design, which was entirely portable powered by a battery pack. We further integrated an aqueous two-phase emulsion bioink based on gelatin methacryloyl with the handheld system, enabling convenient shape-controlled in situ bioprinting. The unique pore-forming property of the emulsion bioink facilitated liquid and oxygen transport as well as cellular proliferation and spreading, with an additional ability of good elasticity to withstand repeated mechanical compressions. These advantages of our pore-forming bioink-loaded handheld bioprinter are believed to pave a new avenue for effective wound dressing potentially in a personalized manner down the future.http://www.sciencedirect.com/science/article/pii/S259000642030034XGelatin methacryloyl (GelMA)Polyethylene oxide (PEO)PorousBioprintingIntraoperativeMinimally invasive |
| spellingShingle | G. Ying J. Manríquez D. Wu J. Zhang N. Jiang S. Maharjan D.H. Hernández Medina Y.S. Zhang An open-source handheld extruder loaded with pore-forming bioink for in situ wound dressing Materials Today Bio Gelatin methacryloyl (GelMA) Polyethylene oxide (PEO) Porous Bioprinting Intraoperative Minimally invasive |
| title | An open-source handheld extruder loaded with pore-forming bioink for in situ wound dressing |
| title_full | An open-source handheld extruder loaded with pore-forming bioink for in situ wound dressing |
| title_fullStr | An open-source handheld extruder loaded with pore-forming bioink for in situ wound dressing |
| title_full_unstemmed | An open-source handheld extruder loaded with pore-forming bioink for in situ wound dressing |
| title_short | An open-source handheld extruder loaded with pore-forming bioink for in situ wound dressing |
| title_sort | open source handheld extruder loaded with pore forming bioink for in situ wound dressing |
| topic | Gelatin methacryloyl (GelMA) Polyethylene oxide (PEO) Porous Bioprinting Intraoperative Minimally invasive |
| url | http://www.sciencedirect.com/science/article/pii/S259000642030034X |
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