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Related Experiment Video

Updated: May 20, 2026

SNARE-mediated Fusion of Single Proteoliposomes with Tethered Supported Bilayers in a Microfluidic Flow Cell Monitored by Polarized TIRF Microscopy

SNARE-mediated Fusion of Single Proteoliposomes with Tethered Supported Bilayers in a Microfluidic Flow Cell Monitored by Polarized TIRF Microscopy

Published on: August 24, 2016

Lipid bilayer membrane-triggered presynaptic vesicle assembly.

Gopakumar Gopalakrishnan¹, Peter Thostrup, Isabelle Rouiller

¹Department of Chemistry, McGill University, 801 Sherbrooke Street West, H3A 2K6 Montreal, Canada.

ACS Chemical Neuroscience

|July 11, 2012

Summary

Engineered neural networks require functional synapses. Researchers used spherical supported bilayer lipid membranes (SS-BLMs) as a novel substrate to demonstrate presynaptic vesicle accumulation, advancing artificial synapse development.

Keywords:

Lipid membranes neurodegenerative diseases neurons regenerative medicine supported bilayers synapse

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Area of Science:

Neuroscience
Biomaterials Science
Bioengineering

Background:

Developing in vitro neural networks necessitates the formation of functional synapses on artificial substrates.
Spherical supported bilayer lipid membranes (SS-BLMs) offer a promising novel platform for creating artificial synaptic junctions.

Purpose of the Study:

To investigate the potential of SS-BLMs as a substrate for demonstrating presynaptic vesicle accumulation.
To explore the interactions between neurons and SS-BLMs in the context of in vitro synaptogenesis.

Main Methods:

Characterization of SS-BLMs using confocal fluorescence microscopy, cryo-transmission electron microscopy (cryo-TEM), and fluorescence recovery after photobleaching (FRAP).
Observation of presynaptic vesicle formation at neuron-SS-BLM contacts via immunocytochemistry and confocal fluorescence microscopy.

Main Results:

Demonstrated presynaptic vesicle accumulation at in vitro synaptic junctions formed on SS-BLMs.
Identified potential roles for lipid phases, alongside chemical and electrostatic interactions, in neuron-SS-BLM interactions.

Conclusions:

SS-BLMs serve as a viable substrate for artificial synapse formation, showing presynaptic vesicle accumulation.
The biocompatibility and tunable nature of lipid bilayers make SS-BLMs a valuable tool for neuroengineering and in vivo synaptogenesis research.