DC Field | Value | Language |
---|---|---|
dc.contributor.author | LEE, YUNJI | - |
dc.contributor.author | PARK, JU AN | - |
dc.contributor.author | KANG, DAYOON | - |
dc.contributor.author | JUNG, SUNGJUNE | - |
dc.date.accessioned | 2021-06-01T11:54:05Z | - |
dc.date.available | 2021-06-01T11:54:05Z | - |
dc.date.created | 2020-03-31 | - |
dc.date.issued | 2019-09-19 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/106397 | - |
dc.description.abstract | Drop-on-demand inkjet printing, one of the most effective tools for tissue fabrication, allows high resolution printing by positioning very small droplets of liquid in a picolitre (10-12 L) level. However, a limited range of polymer concentration is printable as this technique cannot print an ink with viscosity of above 20 mPa·s. Here, we report a simple method to control the viscosity of high-concentration gelatin mathacryloyl(GelMA) bioinks by exposing ultrasound sonication to print with an inkjet-print nozzle. We prepared GelMA inks with varying concentration from 5 to 10 and 15 % (w/v). Those inks were exposed to ultrasound sonication with different duration from 0 to 48 min to lower their viscosity which were measured with a rotational rheometer. By increasing the sonication time, the viscosity of GelMA inks decreased with the shortened chain length of peptide polymer. The 10% GelMA which was initially unjettable with an 80 μm-sized inkjet nozzle turns out to be jettable owing to the reduction of viscosity by ultrasound sonication. The 5% GelMA inks were jettable and 15% GelMA inks were not jettable regardless ultrasound exposure. We believe that this method enables us to expand inkjet-ink range and control ink physical properties easily. | - |
dc.language | Korean | - |
dc.publisher | 한국생체재료학회 | - |
dc.relation.isPartOf | 2019년 한국생체재료학회 추계 학술대회 및 총회 | - |
dc.relation.isPartOf | 발표논문집 제 23권 3호 | - |
dc.title | Control of viscosity of gelatin methacryloyl bioink by ultrasound sonication for inkjet bioprinting | - |
dc.type | Conference | - |
dc.type.rims | CONF | - |
dc.identifier.bibliographicCitation | 2019년 한국생체재료학회 추계 학술대회 및 총회 | - |
dc.citation.conferenceDate | 2019-09-19 | - |
dc.citation.conferencePlace | KO | - |
dc.citation.conferencePlace | 판교 차바이오컴플렉스 | - |
dc.citation.title | 2019년 한국생체재료학회 추계 학술대회 및 총회 | - |
dc.contributor.affiliatedAuthor | LEE, YUNJI | - |
dc.contributor.affiliatedAuthor | PARK, JU AN | - |
dc.contributor.affiliatedAuthor | KANG, DAYOON | - |
dc.contributor.affiliatedAuthor | JUNG, SUNGJUNE | - |
dc.description.journalClass | 2 | - |
dc.description.journalClass | 2 | - |
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