| 학회 |
한국공업화학회 |
| 학술대회 |
2018년 가을 (10/31 ~ 11/02, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 |
22권 2호 |
| 발표분야 |
콜로이드.계면화학_포스터 |
| 제목 |
Programmed Suspension Rheology of Nanofluids Using DNA-Patchy Biocellulose Nanofibrils |
| 초록 |
We propose a new suspension rheology approach to program the rheological properties of Nanofluids, in which DNA-patchy biocellulose nanofibrils exhibit non-specific interactions between fibers, thus enabling the shear-dependent reversible sol-gel transition. For this, two complementary DNAs were grafted onto biocelluloses that were treated with 1-ethyl-3-(3-dimethyl aminopropyl) carbodiimide and N-hydroxysuccinimide to form amide bonds. When the DNA bases pair up, hybridization causes physical cross-linking of biocelluloses, which was programmable depending on the degree of interaction between DNAs on the biocellulose. Finally, we showed that the DNA-modified biocellulose nanofluids having a stable gel network exhibit reversible sol-gel transition in response to the applied shear force. |
| 저자 |
Min Jeong Seo, Hakyeong Yang, Song-Ee choi, Jin Woong Kim
|
| 소속 |
Hanyang Univ. |
| 키워드 |
DNA; biocelluloses; sol-gel transition; complementary base pairing
|
| E-Mail |
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