Biological characterization of the modified poly(dimethylsiloxane) surfaces based on cell attachment and toxicity assays
PBN-AR
Instytucja
Narodowy Instytut Leków
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Główny język publikacji
en
Czasopismo
BIOMICROFLUIDICS (35pkt w roku publikacji)
ISSN
1932-1058
EISSN
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Rok publikacji
2018
Numer zeszytu
Strony od-do
32767-
Numer tomu
12
Liczba arkuszy
Open access
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Język
en
Treść
Poly(dimethylsiloxane) (PDMS) is a material applicable for tissue and biomedical engineering, especially based on microfluidic devices. PDMS is a material used in studies aimed at understanding cell behavior and analyzing the cell adhesion mechanism. In this work, biological characterization of the modified PDMS surfaces based on cell attachment and toxicity assays was performed. We studied Balb 3T3/c, HMEC-1, and HT-29 cell adhesion on poly(dimethylsiloxane) surfaces modified by different proteins, with and without pre-activation with plasma oxygen and UV irradiation. Additionally, we studied how changing of a base and a curing agent ratios influence cell proliferation. We observed that cell type has a high impact on cell adhesion, proliferation, as well as viability after drug exposure. It was tested that the carcinoma cells do not require a highly specific microenvironment for their proliferation. Cytotoxicity assays with celecoxib and oxaliplatin on the modified PDMS surfaces showed that normal cells, cultured on the modified PDMS, are more sensitive to drugs than cancer cells. Cell adhesion was also tested in the microfluidic systems made of the modified PDMS layers. Thanks to that, we studied how the surface area to volume ratio influences cell behavior. The results presented in this manuscript could be helpful for creation of proper culture conditions during in vitro tests as well as to understand cell response in different states of disease depending on drug exposure.
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a74aff169d88dbbf50f21b2ae9f7fbdd
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