Imperial College London

DrRylieGreen

Faculty of EngineeringDepartment of Bioengineering

Reader in Polymer Bioelectronics
 
 
 
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Contact

 

+44 (0)20 7594 0943rylie.green

 
 
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Location

 

2.06Bessemer BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Hassarati:2014:10.1002/polb.23465,
author = {Hassarati, RT and Goding, JA and Baek, S and Patton, AJ and Poole-Warren, LA and Green, RA},
doi = {10.1002/polb.23465},
journal = {Journal of Polymer Science, Part B: Polymer Physics},
pages = {666--675},
title = {Stiffness quantification of conductive polymers for bioelectrodes},
url = {http://dx.doi.org/10.1002/polb.23465},
volume = {52},
year = {2014}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - Conductive polymer (CP) coatings can improve the performance of metallic bioelectrodes in implantable devices, a benefit which is partially attributed to the "softer" material interface. However, due to the nature of CP fabrication on metallic substrates, accurate quantification of mechanical properties has been difficult to achieve. This study demonstrates that peak-force quantitative nanomechanical mapping (PF-QNM) is a robust technique for determining the modulus of CP coatings. The effect of dopant size, chemistry, and film hydration on the mechanical properties of poly(3,4-ethylene dioxythiophene) (PEDOT) is also examined. Analysis of PEDOT doped with poly(styrene sulfonate) produced across five different thicknesses confirms the utility of PF-QNM in yielding quantitative, repeatable moduli in both the dry and hydrated state. By doping PEDOT with paratoluene sulfonate and perchlorate (ClO 4 ) it is shown that the hydrophilicity and the size of the dopant are both critical factors influencing CP mechanical properties in the hydrated environment. © 2014 Wiley Periodicals, Inc.
AU - Hassarati,RT
AU - Goding,JA
AU - Baek,S
AU - Patton,AJ
AU - Poole-Warren,LA
AU - Green,RA
DO - 10.1002/polb.23465
EP - 675
PY - 2014///
SN - 1099-0488
SP - 666
TI - Stiffness quantification of conductive polymers for bioelectrodes
T2 - Journal of Polymer Science, Part B: Polymer Physics
UR - http://dx.doi.org/10.1002/polb.23465
VL - 52
ER -