Imperial College London

DrJanetWong

Faculty of EngineeringDepartment of Mechanical Engineering

Senior Lecturer
 
 
 
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Contact

 

+44 (0)20 7594 8991j.wong

 
 
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Location

 

671City and Guilds BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Guo:2017:10.3390/polym9070275,
author = {Guo, YY and di, Mare L and Li, RKY and Wong, JSS},
doi = {10.3390/polym9070275},
journal = {Polymers},
title = {Structure of Amphiphilic Terpolymer Raspberry Vesicles},
url = {http://dx.doi.org/10.3390/polym9070275},
volume = {9},
year = {2017}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - Terpolymer raspberry vesicles contain domains of different chemical affinities. They are potential candidates as multi-compartment cargo carriers. Their efficacy depends on their stability and load capacity. Using a model star terpolymer system in an aqueous solution, a dissipative particle dynamic (DPD) simulation is employed to investigate how equilibrium aggregate structures are affected by polymer concentration and pairwise interaction energy in a solution. It is shown that a critical mass of polymer is necessary for vesicle formation. The free energy of the equilibrium aggregates are calculated and the results show that the transition from micelles to vesicles is governed by the interactions between the longest solvophobic block and the solvent. In addition, the ability of vesicles to encapsulate solvent is assessed. It is found that reducing the interaction energy favours solvent encapsulation, although solvent molecules can permeate through the vesicle’s shell when repulsive interactions among monomers are low. Thus, one can optimize the loading capacity and the release rate of the vesicles by turning pairwise interaction energies of the polymer and the solvent. The ability to predict and control these aspects of the vesicles is an essential step towards designing vesicles for specific purposes.
AU - Guo,YY
AU - di,Mare L
AU - Li,RKY
AU - Wong,JSS
DO - 10.3390/polym9070275
PY - 2017///
SN - 2073-4360
TI - Structure of Amphiphilic Terpolymer Raspberry Vesicles
T2 - Polymers
UR - http://dx.doi.org/10.3390/polym9070275
UR - http://hdl.handle.net/10044/1/50077
VL - 9
ER -