期刊
NANO LETTERS
卷 15, 期 1, 页码 649-655出版社
AMER CHEMICAL SOC
DOI: 10.1021/nl504158h
关键词
DNA origami; lipid membrane; fluorescence correlation spectroscopy; translational diffusion; rotational diffusion; isotropic-nematic transition
类别
资金
- Deutsche Forschungsgemeinschaft Transregio 83 Grant [TRR83]
- European Research Council [261224]
- Deutsche Forschungsgemeinschaft via the Research Group [FOR 877]
- European Research Council (ERC) [261224] Funding Source: European Research Council (ERC)
We introduce a simple experimental system to study dynamics of needle-like nanoobjects in two dimensions (2D) as a function of their surface density close to the isotropicnematic transition. Using fluorescence correlation spectroscopy, we find that translational and rotational diffusion of rigid DNA origami nanoneedles bound to freestanding lipid membranes is strongly suppressed upon an increase in the surface particle density. Our experimental observations show a good agreement with results of Monte Carlo simulations of Brownian hard needles in 2D.
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