| 학회 |
한국공업화학회 |
| 학술대회 |
2021년 가을 (11/03 ~ 11/05, 대구 엑스코(EXCO)) |
| 권호 |
25권 2호 |
| 발표분야 |
학생우수논문발표(박사과정) |
| 제목 |
Saturnia japonica Cocoon: A Robust Protective Shielding via Outstanding Cohesive Property of Sericin |
| 초록 |
The cocoon of wild silkworm Saturnia japonica (SJ) exhibits a distinctive morphology compared to the Bombyx mori (BM) cocoon such as, tanned color, macroporous and open-ended structure. Herein, we measured the mechanical strength of SJ and BM cocoon, then the SJ cocoon performs outstanding mechanical property. Hence, we extracted a SJ sericin which is a hardening component of cocoon and measured the interaction forces between sericin nanofilms using a surface forces apparatus (SFA) in aqueous solution with various pHs. The measured cohesion energy between SJ sericin was ~150% higher than that of BM sericin with gradual increases regarding a higher pH and contact time. The pH dependent cohesive force indicates a possibility upon the increase in number of binding sites due to the sericin rearrangement and/or conformation change. Beyond our current grasp the SJ sericin possess a superior cohesive property, and suggest it could be used for eco-friendly biomaterials or adhesive binders. |
| 저자 |
이진훈1, 이정준1, 김형빈2, 임찬웅1, 황동수2, 이동욱1
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| 소속 |
1울산과학기술원, 2포항공과대 |
| 키워드 |
Sericin; Cocoon; Bombyx mori; Saturnia japonica; Surface Forces Apparatus; Cohesion
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| E-Mail |
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