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Myoglobin interactions with polystyrene surfaces of different hydrophobicity
Eindhoven University of Technology, Netherlands; Dutch Polymer Institute, Netherlands.ORCID-id: 0000-0001-9337-2249
Eindhoven University of Technology, Netherlands.
Eindhoven University of Technology, Netherlands.
2014 (Engelska)Ingår i: Macromolecular Theory and Simulations, ISSN 1022-1344, E-ISSN 1521-3919, Vol. 23, nr 2, s. 63-75Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

The atomistic molecular-dynamics simulations of the initial stage of myoglobin adsorption on amorphous polystyrene surfaces with varying hydrophobicity are presented. The polystyrene surfaces as non-oxidized (hydrophobic) and oxidized (hydrophilic) films, both in united-atoms and dummy-hydrogen atoms representations are modeled. The protein is placed initially at different distances and orientations from the polymer. We monitor the interactions between the protein and the polystyrene surface for the same polystyrene surface in contact with the protein in different initial orientations and for one initial orientation of the protein in contact with different polystyrene surfaces. By comparing the stability and the number of myoglobin-polystyrene atomic contacts and the interaction energies, it is found that the initial contact of the protein with the hydrophobic polystyrene surfaces is stronger than with the hydrophilic ones. The orientations of the myoglobin in which the more rigid protein parts face the polymer exhibit stronger initial contact with the polymeric surface. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Ort, förlag, år, upplaga, sidor
Wiley-Blackwell, 2014. Vol. 23, nr 2, s. 63-75
Nyckelord [en]
molecular-dynamics simulation; polystyrene film; protein-polymer interactions
Nationell ämneskategori
Polymerteknologi Polymerkemi
Forskningsämne
Fysik
Identifikatorer
URN: urn:nbn:se:kau:diva-63831DOI: 10.1002/mats.201300133ISI: 000332004600001Scopus ID: 2-s2.0-84894597934OAI: oai:DiVA.org:kau-63831DiVA, id: diva2:1142936
Tillgänglig från: 2017-09-20 Skapad: 2017-09-20 Senast uppdaterad: 2019-05-27Bibliografiskt granskad

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