TY  - GEN
A1  - Kaindl, Thomas
Y1  - 2011///
UR  - https://archiv.ub.uni-heidelberg.de/volltextserver/11593/
KW  - biomembrane 
KW  -  lipids 
KW  -  pattern formation 
KW  -  X-ray scattering 
KW  -  cell adhesion
N2  - Highly uniform and strongly correlated domains of synthetic, fluorinated lipids were incorporated into solid supported lipid membranes. The systematic characterization of variable fluorinated lipid domains revealed a significant dependence of the equilibrium radius of domains on the length of fluorocarbon chains. This can be quantitatively explained within the theoretical framework of an equivalent dipole model. An analysis of the mono?dispersive domains with narrow size distributions and the precise determination of molecular structure parameters with grazing?incidence X-ray diffraction measurements enabled treatment of the inter?domain correlations as two?dimensional colloidal crystallization and calculation of the potential of mean force. Furthermore, the head groups of fluorinated lipids can be modified with alpha ?D?mannose and the specific ligand for an apoptosis receptor (CD95L). Both biofunctional molecules attached to the membranes showed specific interactions with target cells, revealing a significant influence of the lateral confinement of domains on the dynamic spreading of macrophages and cancer cell apoptosis. The obtained results demonstrate that synthetically designed lipid anchors can be used as building blocks to create biofunctional micro-/nano- domains for the quantitative regulation of the static and dynamic behavior of cells.
AV  - public
ID  - heidok11593
TI  - Control of Specific Cell Response with Strongly Correlated Functional Domains Embedded in Supported Membranes
ER  -