Imperial College London

Dr Nick Brooks

Faculty of Natural SciencesDepartment of Chemistry

Senior Lecturer
 
 
 
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Contact

 

+44 (0)20 7594 2677n.brooks Website

 
 
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Location

 

207JMolecular Sciences Research HubWhite City Campus

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Summary

 

Publications

Citation

BibTex format

@article{Barlow:2017:10.1063/1.4979045,
author = {Barlow, NE and Smpokou, E and Friddin, MS and Macey, R and Gould, I and Turnbull, C and Flemming, AJ and Brooks, NJ and Ces, O and Barter, LMC},
doi = {10.1063/1.4979045},
journal = {Biomicrofluidics},
title = {Engineering plant membranes using droplet interface bilayers},
url = {http://dx.doi.org/10.1063/1.4979045},
volume = {11},
year = {2017}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - Droplet interface bilayers (DIBs) have become widely recognised as a robust platform for constructing model membranes and are emerging as a key technology for the bottom-up assembly of synthetic cell-like and tissue-like structures. DIBs are formed when lipid-monolayer coated water droplets are brought together inside a well of oil, which is excluded from the interface as the DIB forms. The unique features of the system, compared to traditional approaches (e.g., supported lipid bilayers, black lipid membranes, and liposomes), is the ability to engineer multi-layered bilayer networks by connecting multiple droplets together in 3D, and the capability to impart bilayer asymmetry freely within these droplet architectures by supplying droplets with different lipids. Yet despite these achievements, one potential limitation of the technology is that DIBs formed from biologically relevant components have not been well studied. This could limit the reach of the platform to biological systems where bilayer composition and asymmetry are understood to play a key role. Herein, we address this issue by reporting the assembly of asymmetric DIBs designed to replicate the plasma membrane compositions of three different plant species; Arabidopsis thaliana, tobacco, and oats, by engineering vesicles with different amounts of plant phospholipids, sterols and cerebrosides for the first time. We show that vesicles made from our plant lipid formulations are stable and can be used to assemble asymmetric plant DIBs. We verify this using a bilayer permeation assay, from which we extract values for absolute effective bilayer permeation and bilayer stability. Our results confirm that stable DIBs can be assembled from our plant membrane mimics and could lead to new approaches for assembling model systems to study membrane translocation and to screen new agrochemicals in plants.
AU - Barlow,NE
AU - Smpokou,E
AU - Friddin,MS
AU - Macey,R
AU - Gould,I
AU - Turnbull,C
AU - Flemming,AJ
AU - Brooks,NJ
AU - Ces,O
AU - Barter,LMC
DO - 10.1063/1.4979045
PY - 2017///
SN - 1932-1058
TI - Engineering plant membranes using droplet interface bilayers
T2 - Biomicrofluidics
UR - http://dx.doi.org/10.1063/1.4979045
UR - http://hdl.handle.net/10044/1/45562
VL - 11
ER -