1 Ocak 2018 Dergi makalesi Açık Erişim

Kirbay, Fatma Ozturk; Yalcinkaya, Esra Evrim; Atik, Gozde; Evren, Gizem; Unal, Betul; Demirkol, Dilek Odaci; Timur, Suna

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    <subfield code="a">Biofunctionalization of PAMAM-montmorillonite decorated poly (epsilon-caprolactone)-chitosan electrospun nanofibers for cell adhesion and electrochemical cytosensing</subfield>
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    <subfield code="a">The construction and biofunctionalization of the poly (C-caprolactone) (PCL)-chitosan (CHIT) nanofibrous mats, which included Polyamidoamine (PAMAM) dendrimer modified montmorillonite (Mt), for the cell adhesion and electrochemical cytosensing were accomplished in this report. After the intercalation of the PAMAM generation zero dendrimer into the Mt, PAMAM-Mt decorated PCL-CHIT electrospun nanofibers were formed. The addition of PAMAM caused the decrease of contact angle of PCL-CHIT nanofibers. The covalent immobilization of a tripeptide namely Arginylglycylaspartate (RGD) on both the PCL-CHIT/Mt and PCL-CHIT/PAMAM-Mt surface was carried out. U87-MG and HaCaT (negative control) cell lines were incubated on the PCL-CHIT/Mt/RGD and PCL-CHIT/PAMAM-Mt/RGD. The proliferation studies and imaging of the cells were carried out on these fibers. Finally, electrochemical measurements were performed after each modification step by differential pulse/cyclic voltammetry and electrochemical impedance spectroscopy. U87-MG cells were grown better than HaCaT cells on the PCL-CHIT/PAMAM-Mt/RGD surfaces. To the best of our knowledge, there is no study that developed electrochemical cytosensor using electrospun nanofibers as a cell adhesion platform.</subfield>
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    <subfield code="u">Ege Univ, Fac Sci, Chem Dept, TR-35100 Izmir, Turkey</subfield>
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    <subfield code="a">10.1016/j.bios.2018.03.017</subfield>
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