Related Experiment Video
Updated: Jun 16, 2026
10:34
Ligand Nano-cluster Arrays in a Supported Lipid Bilayer
Published on: April 23, 2017
Selective tethering of ligands and proteins to a microfluidically patterned electroactive fluid lipid bilayer array
Debjit Dutta1, Abigail Pulsipher, Muhammad N Yousaf
1Department of Chemistry and the Carolina Center for Genome Science, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, USA.
Langmuir : the ACS Journal of Surfaces and Colloids
|February 6, 2010
Summary
Researchers developed a new method to pattern and present ligands on fluid lipid bilayers using microfluidic lithography and electrochemistry. This technique allows for quantitative analysis of protein binding to biomembranes.
Area of Science:
- Biochemistry
- Materials Science
- Surface Chemistry
Background:
- Supported fluid lipid bilayers are crucial for studying biomembrane interactions.
- Controlled patterning and presentation of ligands on these bilayers remain challenging.
Purpose of the Study:
- To develop a quantitative methodology for patterning and presenting ligands from fluid lipid bilayers.
- To enable precise control over ligand immobilization for biomolecular interaction studies.
Main Methods:
- Integration of microfluidic lithography (microFL) with an electroactive, chemoselective interfacial reaction.
- Utilizing hydroquinone-tethered alkane (H(2)Q) for electrochemical activation and oxyamine-functionalized (RONH(2)) ligand conjugation.
- Characterization using electrochemistry, fluorescence microscopy, ellipsometry, and fluorescence recovery after photobleaching (FRAP).
Main Results:
- Successful immobilization of various ligands and concanavalin A protein in lipid microarrays.
- Demonstration of electrochemically monitored and quantified ligand binding via oxime formation.
- Confirmation of fluid lipid bilayers using FRAP.
Conclusions:
- The developed strategy offers a synergistic approach for patterning and presenting diverse ligands or biomolecules on bilayer surfaces.
- This method facilitates the evaluation of enzyme or protein binding to biomembranes with quantitative electrochemical readout.
