Earticle

초록

영어

The chemistry of mussel adhesion has commanded the focus of much recent research activity on wet adhesion. By comparison, the equally critical adhesive processing by marine organisms has been little examined. Using a mussel-inspired coacervate formed by mixing a recombinant mussel adhesive protein (fp-151-RGD) with hyaluronic acid (HA), we have examined the nanostructure, viscosity, friction, and interfacial energy of fluid-fluid phase-separated coacervates using the surface forces apparatus and microscopic techniques. At mixing ratios of fp-151-RGD:HA resulting in marginal coacervation, the coacervates showed shear-thickening viscosity and no structure by cryo-transmission electron microscopy (cryo-TEM). However, at the mixing ratio producing maximum coacervation, the coacervate showed shear-thinning viscosity and a transition to a bicontinuous phase by cryo-TEM. The shear-thinning viscosity, high friction coefficient (>1.2), and low interfacial energy (<1mJ/m2) observed at the optimal mixing ratio for coacervation are promising delivery, spreading and adhesion properties for future wet adhesive and coating technologies.

키워드

저자

• Dong Yeop OH [ POSTECH Ocean Science and Technology Institute (POSTI), Pohang Univerisity of Science and Technology, Pohang, 790-784. ]
• Hongbo ZENG [ Department of Chemical and Materials Engineering, University of Alberta Edmonton, Alberta, T6G 2V4, Canada. ]
• J. Herbert WAITE [ Marine Science Institute, University of California, Santa Barbara, California 93106. ]
• Dong Soo HWANG [ POSTECH Ocean Science and Technology Institute (POSTI), Pohang Univerisity of Science and Technology, Pohang, 790-784. ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국생물공학회 학술대회

• 간기

  반년간

• 수록기간

  1985~2013

• 십진분류

  KDC 476 DDC 576