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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.1c01044
|2 doi
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|a eng
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|a Satake, Hiroto
|e verfasserin
|4 aut
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|a Cell Adhesion Characteristics on Tantalum Pentoxide Gate Insulator for Cultured-Cell-Gate Field-Effect Transistor
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|c 2021
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 28.06.2021
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|a Date Revised 28.06.2021
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Understanding the interaction between living cells and a tantalum pentoxide (Ta2O5) gate electrode is important for controlling cell adhesion and functions when developing a cultured-cell-gate field-effect transistor biosensor. In this study, we evaluate the cell adhesion characteristics of the Ta2O5 membrane without or with a polydopamine (pDA) coating for chondrocytes, which is expected as a treatment for improving biocompatibility. As a result, the native and pDA-modified Ta2O5 membranes are shown to have the appropriate surface tension (35-40 dyn/cm) for the adhesion of chondrocytes owing to the contribution of surface tension to not only the nonspecific adsorption of serum proteins as the scaffold of chondrocytes but also the maintenance of the conformation of serum proteins. In particular, the serum proteins adhere more efficiently to the native Ta2O5 membrane than to the pDA-modified ones owing to the relatively smaller surface tension of the native Ta2O5 membrane; as a result, the proliferation and production of extracellular matrix (ECM) proteins such as collagen and proteoglycans by chondrocytes are clearly enhanced on the native Ta2O5 membrane. Thus, the native Ta2O5 membrane shows superior performance for the chondrocyte culture on it compared with the pDA-modified ones
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|a Journal Article
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|a Oxides
|2 NLM
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|a Tantalum
|2 NLM
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|a 6424HBN274
|2 NLM
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|a tantalum oxide
|2 NLM
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|a OEZ64Z53M4
|2 NLM
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| 700 |
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|a Sakata, Toshiya
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 37(2021), 24 vom: 22. Juni, Seite 7548-7555
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:37
|g year:2021
|g number:24
|g day:22
|g month:06
|g pages:7548-7555
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|u http://dx.doi.org/10.1021/acs.langmuir.1c01044
|3 Volltext
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