화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2009년 봄 (04/09 ~ 04/10, 대전컨벤션센터)
권호 34권 1호
발표분야 기능성 고분자
제목 Layer-by-Layer Assembled Polyelectrolyte Platforms for Cell-Based Cancer Diagnostic Assays
초록 To date, the mechanical properties of LbL assembled polyelectrolyte thin films have received much attention for their useful applications such as membranes, sensors, and many other devices. In present study, we demonstrate that the different deposition methods of LbL assembly (i.e., spin vs. conventional dip method) has also effect on the film growth and mechanical properties of polyelectrolyte multilayer thin films based on the different assembly mechanism. Multilayer films based upon strong or weak electrostatic association between poly(allylamine hydrochloride) (PAH) and poly(acrylic acid) (PAA) have been prepared with various pH combinations using the dip and spin-assisted LbL methods and the Young’s modulus of dip- and spin-assisted LbL assembled PAH/PAA multilayer films is obtained by nanoindentation using a liquid atomic force microscope. We also investigate the effect of different modulus of polymer films in wet condition on various cell attachment and proliferation.
저자 서진화1, 김래현2, 장영선1, 이효진1, 전종호1, 남좌민1, 차국헌1
소속 1서울대, 2한국과학기술(연)
키워드 Layer-by-Layer deposition; polyelectrolyte; mechanical property
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