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  4. A method for determination and simulation of permeability and diffusion in a 3D tissue model in a membrane insert system for multi-well plates
 
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A method for determination and simulation of permeability and diffusion in a 3D tissue model in a membrane insert system for multi-well plates

Citation Link: https://doi.org/10.15480/882.2157
Publikationstyp
Journal Article
Date Issued
2018-02-02
Sprache
English
Author(s)
Hsu, Hao-Hsiang  
Kracht, John-Kevin  
Harder, Laura Elisabeth  
Rudnik, Kerstin  
Lindner, Gerd  
Schimek, Katharina  
Marx, Uwe  
Pörtner, Ralf 
Institut
Bioprozess- und Biosystemtechnik V-1  
TORE-DOI
10.15480/882.2157
TORE-URI
http://hdl.handle.net/11420/2243
Journal
JoVE  
Issue
132
Article Number
e56412
Citation
Journal of Visualized Experiments 132: e56412 (2018)
Publisher DOI
10.3791/56412
Scopus ID
2-s2.0-85049259090
Publisher
[S.l.]
In vitro cultivated skin models have become increasingly relevant for pharmaceutical and cosmetic applications, and are also used in drug
development as well as substance testing. These models are mostly cultivated in membrane-insert systems, their permeability toward different substances being an essential factor. Typically, applied methods for determination of these parameters usually require large sample sizes (e.g., Franz diffusion cell) or laborious equipment (e.g., fluorescence recovery after photobleaching (FRAP)). This study presents a method for determining permeability coefficients directly in membrane-insert systems with diameter sizes of 4.26 mm and 12.2 mm (cultivation area). The method was validated with agarose and collagen gels as well as a collagen cell model representing skin models. The permeation processes of substances with different molecular sizes and permeation through different cell models (consisting of collagen gel, fibroblast, and HaCaT) were accurately described.
Moreover, to support the above experimental method, a simulation was established. The simulation fits the experimental data well for substances with small molecular size, up to 14 x 10-10 m Stokes radius (4,000 MW), and is therefore a promising tool to describe the system. Furthermore, the simulation can considerably reduce experimental efforts and is robust enough to be extended or adapted to more complex setups.
Subjects
Bioengineering
Issue 132
Skin model
permeability
diffusion
membrane insert system
simulation
fluorescein isothiocyanate-dextran
fluorescein sodium salt
DDC Class
570: Biowissenschaften, Biologie
620: Ingenieurwissenschaften
Funding(s)
Entwicklung und mikrofluidische Charakterisierung eines dynamisch kultivierten Vollhautmodells  
Lizenz
https://creativecommons.org/licenses/by-nc-nd/3.0/
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