MANAKHOV, Anton, David NEČAS, Jan ČECHAL, David PAVLIŇÁK, Marek ELIÁŠ a Lenka ZAJÍČKOVÁ. Deposition of stable amine coating onto polycaprolactone nanofibers by low pressure cyclopropylamine plasma polymerization. Thin Solid Films. Lausanne: Elsevier science, 2015, roč. 581, APR, s. 7-13. ISSN 0040-6090. doi:10.1016/j.tsf.2014.09.015.
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Základní údaje
Originální název Deposition of stable amine coating onto polycaprolactone nanofibers by low pressure cyclopropylamine plasma polymerization
Autoři MANAKHOV, Anton (643 Rusko, domácí), David NEČAS (203 Česká republika, domácí), Jan ČECHAL (203 Česká republika), David PAVLIŇÁK (203 Česká republika, domácí), Marek ELIÁŠ (203 Česká republika, domácí) a Lenka ZAJÍČKOVÁ (203 Česká republika, garant, domácí).
Vydání Thin Solid Films, Lausanne, Elsevier science, 2015, 0040-6090.
Další údaje
Originální jazyk angličtina
Typ výsledku Článek v odborném periodiku
Obor 10305 Fluids and plasma physics
Stát vydavatele Švýcarsko
Utajení není předmětem státního či obchodního tajemství
WWW URL
Impakt faktor Impact factor: 1.761
Kód RIV RIV/00216224:14740/15:00087132
Organizační jednotka Středoevropský technologický institut
Doi http://dx.doi.org/10.1016/j.tsf.2014.09.015
UT WoS 000352223900003
Klíčová slova anglicky Polycaprolactone; Nanofibers; Cyclopropylamine; Plasma polymerization; Water stability; X-ray photoelectron spectroscopy
Štítky podil, rivok
Příznaky Mezinárodní význam, Recenzováno
Změnil Změnila: Olga Křížová, učo 56639. Změněno: 31. 3. 2016 10:44.
Anotace
Amine-rich films are of high interest for the bio-applications including drug delivery and tissue engineering thanks to their high reactivity allowing the formation of the covalent linkages between biomolecules and a surface. However, the bio-applications of amine-rich films require their good stability in water which is often achieved at large expenses of the amine concentration. Recently, non-toxic cyclopropylamine (CPA) has been applied for the plasma polymerization of films bearing high NHx environment combined with the moderate thickness loss (20%) afterwater immersion for 48 h. In thiswork, the amine-rich film with the NHx concentration over 7 at.% was deposited on Si substrates and polycaprolactone nanofiber meshes by using CPA plasma polymerization (pulsed mode) in a vertically oriented stainless steel reactor. The substrates were placed at the radio frequency electrode and the ion bombardment caused by direct-current self-bias was suppressed by using high pressure of 50 Pa. Analysis of samples by scanning electron microscopy did not reveal any cracks in the deposited layer formed during a sample immersion inwater. Fourier transform infrared (FTIR) spectroscopy and X-ray photoelectron spectroscopy (XPS) confirmed a slight oxidation of amine groups in water but the film still contained 5 at.% of NHx (according to the N1s XPS fitting) after the immersion. The rapid oxidation of amine groups was observed during the aging experiment carried out in air at room temperature because FTIR revealed an increase of amide peaks that increased progressivelywith aging time. However, this oxidationwas significantly reduced if the plasma polymer was stored at -20 degrees C. Since the films exhibit high amine concentration and very good water stability they have great potential for applications as biocompatible functional coatings. (C) 2014 Elsevier B.V. All rights reserved.
Návaznosti
ED1.1.00/02.0068, projekt VaVNázev: CEITEC - central european institute of technology
ED2.1.00/03.0086, projekt VaVNázev: Regionální VaV centrum pro nízkonákladové plazmové a nanotechnologické povrchové úpravy
286154, interní kód MUNázev: SYLICA - Synergies of Life and Material Sciences to Create a New Future (Akronym: SYLICA)
Investor: Evropská unie, SYLICA - Synergies of Life and Material Sciences to Create a New Future, Kapacity
3SGA5652, interní kód MUNázev: Bioactive Nanofibers Prepared by Electrospinning and Plasma Technologies (Akronym: BioFibPlas)
Investor: Jihomoravský kraj, Bioactive Nanofibers Prepared by Electrospinning and Plasma Technologies, Granty pro zahraniční vědce
VytisknoutZobrazeno: 16. 5. 2022 13:24