Fuming method for micropatterning structures on Langmuir-Blodgett films.
Fuming method for micropatterning structures on Langmuir-Blodgett films.
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Langmuir-Blodgett 薄膜上微图案结构的烟熏方法。
DOI：
10.1021/la804104k
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
Dunn,RobertC
中科院分区：
文献类型：
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作者：
Erickson,ElizabethS;Livanec,PhilipW;Frisz,JessicaF;Dunn,RobertC
使用Langmuir-Blodgett（LB）技术将1-α-二棕榈酰磷脂酰胆碱（DPPC）的脂质单层用于图案化底物。脂质单分子层沉积在新鲜裂开的云母表面或玻璃毛细管的条件下，导致不同的模式，在电影。支持的单层暴露于2-氰基丙烯酸乙酯烟雾导致优先聚合的图案化单层的更多水合区域。该方法使得表面能够被微图案化，其中横向特征由下面的LB膜中存在的结构控制，并且垂直特征尺寸由发烟过程的长度控制。原子力显微镜（AFM）的测量证实，在LB膜的原始结构被保存后，发烟和横向和垂直的特征尺寸可以控制从纳米到微米。因此，这种方法提供了一种快速和通用的方法，用于在各种基板上对平坦和弯曲表面进行微图案化。
Lipid monolayers ofl-α-dipalmitoylphosphatidylcholine (DPPC) are used to pattern substrates using the Langmuir−Blodgett (LB) technique. Lipid monolayers are deposited onto freshly cleaved mica surfaces or glass capillaries under conditions that lead to distinct patterns in the film. Exposure of the supported monolayer to ethyl 2-cyanoacrylate fumes leads to preferential polymerization in the more hydrated regions of the patterned monolayer. This method enables surfaces to be micropatterned where the lateral features are controlled by the structure present in the underlying LB film, and the vertical feature size is controlled by the length of the fuming process. Atomic force microscopy (AFM) measurements confirm that the original structure in the LB film is preserved following fuming and that the lateral and vertical feature sizes can be controlled from nanometers to micrometers. This method, therefore, provides a rapid and versatile approach for micropatterning both flat and curved surfaces on a variety of substrates.