Langmuir-blodgett patterning of phospholipid microstripes: Effect of the second component

Xiaodong Chen; Nan Lu; Hui Zhang; Michael Hirtz; Lixin Wu; Harald Fuchs; Lifeng Chi

doi:10.1021/jp0602530

Langmuir-blodgett patterning of phospholipid microstripes: Effect of the second component

Xiaodong Chen, Nan Lu, Hui Zhang, Michael Hirtz, Lixin Wu, Harald Fuchs, Lifeng Chi^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

43 Citations (Scopus)

Abstract

We systematically describe the striped pattern formation of the mixed monolayers of 1,2-di(2,4-octadecadienoyl)-sn-glycero-3-phosphocholine (DOEPC) and L-α-dipalmitoylphosphatidylcholine (DPPC) from the liquid expanded (LE) phase onto a mica surface by Langmuir-Blodgett (LB) transfer. The addition of the second component, DOEPC, strongly affects the formation of DPPC stripe patterns. When the molar ratio of DPPC and DOEPC is 1:0.1, the horizontal stripes dominate, while in the case of pure DPPC monolayer, there are three kinds of patterns: horizontal stripes, grids, and vertical stripes. The width and periodicity of stripes formed from the mixed monolayers are ca. 4-5 times smaller than those formed from pure DPPC patterns at the same transfer conditions, while the widths of channels are similar. A phase shift of substrate-mediated microphase separation in the two-component system during LB trapsfer is considered to be the mechanism for the influence of the second component on the formation of DPPC stripe patterns.

Original language	English
Pages (from-to)	8039-8046
Number of pages	8
Journal	Journal of Physical Chemistry B
Volume	110
Issue number	15
DOIs	https://doi.org/10.1021/jp0602530
Publication status	Published - Apr 20 2006
Externally published	Yes

ASJC Scopus Subject Areas

Physical and Theoretical Chemistry
Surfaces, Coatings and Films
Materials Chemistry

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title = "Langmuir-blodgett patterning of phospholipid microstripes: Effect of the second component",

abstract = "We systematically describe the striped pattern formation of the mixed monolayers of 1,2-di(2,4-octadecadienoyl)-sn-glycero-3-phosphocholine (DOEPC) and L-α-dipalmitoylphosphatidylcholine (DPPC) from the liquid expanded (LE) phase onto a mica surface by Langmuir-Blodgett (LB) transfer. The addition of the second component, DOEPC, strongly affects the formation of DPPC stripe patterns. When the molar ratio of DPPC and DOEPC is 1:0.1, the horizontal stripes dominate, while in the case of pure DPPC monolayer, there are three kinds of patterns: horizontal stripes, grids, and vertical stripes. The width and periodicity of stripes formed from the mixed monolayers are ca. 4-5 times smaller than those formed from pure DPPC patterns at the same transfer conditions, while the widths of channels are similar. A phase shift of substrate-mediated microphase separation in the two-component system during LB trapsfer is considered to be the mechanism for the influence of the second component on the formation of DPPC stripe patterns.",

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T1 - Langmuir-blodgett patterning of phospholipid microstripes

T2 - Effect of the second component

AU - Chen, Xiaodong

AU - Lu, Nan

AU - Zhang, Hui

AU - Hirtz, Michael

AU - Wu, Lixin

AU - Fuchs, Harald

AU - Chi, Lifeng

PY - 2006/4/20

Y1 - 2006/4/20

N2 - We systematically describe the striped pattern formation of the mixed monolayers of 1,2-di(2,4-octadecadienoyl)-sn-glycero-3-phosphocholine (DOEPC) and L-α-dipalmitoylphosphatidylcholine (DPPC) from the liquid expanded (LE) phase onto a mica surface by Langmuir-Blodgett (LB) transfer. The addition of the second component, DOEPC, strongly affects the formation of DPPC stripe patterns. When the molar ratio of DPPC and DOEPC is 1:0.1, the horizontal stripes dominate, while in the case of pure DPPC monolayer, there are three kinds of patterns: horizontal stripes, grids, and vertical stripes. The width and periodicity of stripes formed from the mixed monolayers are ca. 4-5 times smaller than those formed from pure DPPC patterns at the same transfer conditions, while the widths of channels are similar. A phase shift of substrate-mediated microphase separation in the two-component system during LB trapsfer is considered to be the mechanism for the influence of the second component on the formation of DPPC stripe patterns.

AB - We systematically describe the striped pattern formation of the mixed monolayers of 1,2-di(2,4-octadecadienoyl)-sn-glycero-3-phosphocholine (DOEPC) and L-α-dipalmitoylphosphatidylcholine (DPPC) from the liquid expanded (LE) phase onto a mica surface by Langmuir-Blodgett (LB) transfer. The addition of the second component, DOEPC, strongly affects the formation of DPPC stripe patterns. When the molar ratio of DPPC and DOEPC is 1:0.1, the horizontal stripes dominate, while in the case of pure DPPC monolayer, there are three kinds of patterns: horizontal stripes, grids, and vertical stripes. The width and periodicity of stripes formed from the mixed monolayers are ca. 4-5 times smaller than those formed from pure DPPC patterns at the same transfer conditions, while the widths of channels are similar. A phase shift of substrate-mediated microphase separation in the two-component system during LB trapsfer is considered to be the mechanism for the influence of the second component on the formation of DPPC stripe patterns.

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Langmuir-blodgett patterning of phospholipid microstripes: Effect of the second component

Abstract

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