Many Tribology Group publications are Open Access thanks to funding from the EPSRC.

Citation

BibTex format

@article{Jamal:2020:10.1109/TBME.2020.3024117,
author = {Jamal, A and Mongelli, M and Vidotto, M and Madekurozwa, M and Bernardini, A and Overby, D and De, Momi E and Rodriguez, y Baena F and Sherwood, J and Dini, D},
doi = {10.1109/TBME.2020.3024117},
journal = {IEEE Transactions on Biomedical Engineering},
title = {Infusion mechanisms in brain white matter and its dependence of microstructure: An experimental study of hydraulic permeability},
url = {http://dx.doi.org/10.1109/TBME.2020.3024117},
year = {2020}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - Objective: Hydraulic permeability is a topic of deep interest in biological materials because of its important role in a range of drug delivery-based therapies. The strong dependence of permeability on the geometry and topology of pore structure and the lack of detailed knowledge of these parameters in the case of brain tissue makes the study more challenging. Although theoretical models have been developed for hydraulic permeability, there is limited consensus on the validity of existing experimental evidence to complement these models. In the present study, we measure the permeability of white matter (WM) of fresh ovine brain tissue considering the localised heterogeneities in the medium using an infusion based experimental set up, iPerfusion. We measure the flow across different parts of the WM in response to applied pressures for a sample of specific dimensions and calculate the permeability from directly measured parameters. Furthermore, we directly probe the effect of anisotropy of the tissue on permeability by considering the directionality of tissue on the obtained values. Additionally, we investigate whether WM hydraulic permeability changes with post-mortem time. To our knowledge, this is the first report of experimental measurements of the localised WM permeability, showing the effect of axon directionality on permeability. This work provides a significant contribution to the successful development of intra-tumoural infusion-based technologies, such as convection-enhanced delivery (CED), which are based on the delivery of drugs directly by injection under positive pressure into the brain.
AU - Jamal,A
AU - Mongelli,M
AU - Vidotto,M
AU - Madekurozwa,M
AU - Bernardini,A
AU - Overby,D
AU - De,Momi E
AU - Rodriguez,y Baena F
AU - Sherwood,J
AU - Dini,D
DO - 10.1109/TBME.2020.3024117
PY - 2020///
SN - 0018-9294
TI - Infusion mechanisms in brain white matter and its dependence of microstructure: An experimental study of hydraulic permeability
T2 - IEEE Transactions on Biomedical Engineering
UR - http://dx.doi.org/10.1109/TBME.2020.3024117
UR - http://hdl.handle.net/10044/1/82316
ER -