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101 0 _aeng
135 _adrcn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aLow-temperature argon and ammonia plasma treatment of poly-3-hydroxybutyrate films: Surface topography and chemistry changes affect fibroblast cells in vitro
_fR. A. Surmenev [et al.]
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: 38 tit.]
330 _aPoly-3-hydroxybutyrate (PHB) films were plasma-treated using pure NH3, pure Ar or mixtures of the two different proportions (20%, 30%, 40%, 50%, 70% NH3 in Ar). Surface chemistry and surface topography changes of PHB films were observed after plasma processing in all plasma regimes. The XPS results confirmed the absence of chemical modification in the case of pure Ar plasma treatment. Nitrogen-containing groups (e.g., NCO) were detected on the surfaces of P3HB films treated with NH3-containing plasma. The surfaces of the untreated P3HB films were hydrophobic, and plasma treatment turned the surfaces hydrophilic, irrespective of the treatment. A significant decrease in the contact angle and an increase in the free surface energy were observed. An insignificant surface ageing effect was observed when P3HB samples were exposed to air for 10 days. In NIH 3T3 mice fibroblast cells, cell adhesion was significantly improved after plasma treatment in an Ar atmosphere, which is likely related to the fact that there was a surface ξ potential of 88.6 mV at neutral pH, causing a cleavage of the polymer chains and an increase in surface roughness.
333 _aРежим доступа: по договору с организацией-держателем ресурса
461 _tEuropean Polymer Journal
463 _tVol. 112
_v[P. 137-145]
_d2019
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _aplasma treatment
610 1 _adielectric barrier discharge
610 1 _asurface etching
610 1 _awetting behaviour
610 1 _aбарьерные разряды
610 1 _aклеточная адгезия
701 1 _aSurmenev
_bR. A.
_cphysicist
_cAssociate Professor of Tomsk Polytechnic University, Senior researcher, Candidate of physical and mathematical sciences
_f1982-
_gRoman Anatolievich
_2stltpush
_3(RuTPU)RU\TPU\pers\31885
701 1 _aChernozem
_bR. V.
_cphysicist
_claboratory assistant of Tomsk Polytechnic University
_f1992-
_gRoman Viktorovich
_2stltpush
_3(RuTPU)RU\TPU\pers\36450
701 1 _aSyromotina
_bD.
_gDina
701 1 _aOer
_bK.
_gKristian
701 1 _aBaumbach
_bT.
_gTilo
701 1 _aKrauze
_bB.
_gBarbel
701 1 _aBoyandin
_bA. N.
_gAnatoly Nikolaevich
701 1 _aDvoynina
_bL. M.
_gLyublyana Mikhaylovna
701 1 _aVolova
_bT. G.
_gTatjyana Grigorjevna
701 1 _aSurmeneva
_bM. A.
_cspecialist in the field of material science
_cengineer-researcher of Tomsk Polytechnic University, Associate Scientist
_f1984-
_gMaria Alexandrovna
_2stltpush
_3(RuTPU)RU\TPU\pers\31894
712 0 2 _aНациональный исследовательский Томский политехнический университет
_bИсследовательская школа химических и биомедицинских технологий
_bНаучно-исследовательский центр "Физическое материаловедение и композитные материалы"
_h8209
_2stltpush
_3(RuTPU)RU\TPU\col\24957
801 2 _aRU
_b63413507
_c20190222
_gRCR
856 4 _uhttps://doi.org/10.1016/j.eurpolymj.2018.12.040
942 _cCF