MicroPIV methodology using model systems for flow studies in heterogeneous biopolymer gel microstructures
Artikel i vetenskaplig tidskrift, 2013
A methodology for studying flow in heterogeneous soft microstructures has been developed. The methodology includes: (1) model fractal or random heterogeneous microstructures fabricated in PDMS and characterised using CLSM; (2) μPIV measurements; (3) Lattice–Boltzmann simulations of flow. It has been found that the flow behaviour in these model materials is highly dependent on pore size as well as on the connectivity and occurrence of dead ends. The experimental flow results show good agreement with predictions from the Lattice–Boltzmann modelling. These simulations were performed in geometries constructed from 3D CLSM images of the actual PDMS structures. Given these results, mass transport behaviour may be predicted for even more complex structures, like gels or composite material in, e.g., food or biomaterials. This is a step in the direction towards predictive science with regards to tailoring soft biomaterials for specific mass transport properties.
Biomaterial
Micro-PIV
Microstructure
μPIV
Flow simulation
PDMS
CLSM
Model material
Microfluidics
Mass transport
Författare
Kristin Sott
SuMo Biomaterials
Chalmers, Kemi- och bioteknik, Kemisk apparatteknik
Tobias Gebäck
SuMo Biomaterials
Göteborgs universitet
Chalmers, Matematiska vetenskaper, Matematik
Maria Pihl
SuMo Biomaterials
Chalmers, Kemi- och bioteknik, Teknisk ytkemi
Niklas Lorén
SIK – Institutet för Livsmedel och Bioteknik AB
Anne-Marie Hermansson
Chalmers, Kemi- och bioteknik, Livsvetenskaper
SuMo Biomaterials
Alexey Geynts
Chalmers, Matematiska vetenskaper, Matematik
Göteborgs universitet
Anders Rasmuson
Chalmers, Kemi- och bioteknik, Kemisk apparatteknik
Journal of Colloid and Interface Science
0021-9797 (ISSN) 1095-7103 (eISSN)
Vol. 398 15 May 2013 262-269Styrkeområden
Nanovetenskap och nanoteknik
Materialvetenskap
Ämneskategorier
Beräkningsmatematik
Polymerteknologi
Textil-, gummi- och polymermaterial
Strömningsmekanik och akustik
DOI
10.1016/j.jcis.2013.02.022