Imperial College London

Professor Molly Stevens FREng

Faculty of EngineeringDepartment of Materials

Prof of Biomedical Materials&Regenerative Medicine



+44 (0)20 7594 6804m.stevens




208Royal School of MinesSouth Kensington Campus






BibTex format

author = {Amdursky, N and Wang, X and Meredith, P and Riley, DJ and Payne, DJ and Bradley, D and Stevens, MM},
doi = {10.1002/adma.201700810},
journal = {Advanced Materials},
title = {Electron Hopping Across Hemin-Doped Serum Albumin Mats on Centimetre-Length Scales},
url = {},
volume = {29},
year = {2017}

RIS format (EndNote, RefMan)

AB - Exploring long-range electron transport across protein assemblies is a central interest in both the fundamental research of biological processes and the emerging field of bioelectronics. This work examines the use of serum-albumin-based freestanding mats as macroscopic electron mediators in bioelectronic devices. In particular, this study focuses on how doping the protein mat with hemin improves charge-transport. It is demonstrated that doping can increase conductivity 40-fold via electron hopping between adjacent hemin molecules, resulting in the highest measured conductance for a protein-based material yet reported, and transport over centimeter length scales. The use of distance-dependent AC impedance and DC current–voltage measurements allows the contribution from electron hopping between adjacent hemin molecules to be isolated. Because the hemin-doped serum albumin mats have both biocompatibility and fabrication simplicity, they should be applicable to a range of bioelectronic devices of varying sizes, configurations, and applications.
AU - Amdursky,N
AU - Wang,X
AU - Meredith,P
AU - Riley,DJ
AU - Payne,DJ
AU - Bradley,D
AU - Stevens,MM
DO - 10.1002/adma.201700810
PY - 2017///
SN - 1521-4095
TI - Electron Hopping Across Hemin-Doped Serum Albumin Mats on Centimetre-Length Scales
T2 - Advanced Materials
UR -
UR -
VL - 29
ER -