Unraveling the influence of substrate on the growth rate, morphology and covalent structure of surface adherent polydopamine films

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F21%3A43922468" target="_blank" >RIV/60461373:22340/21:43922468 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61389013:_____/21:00543098

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0927776521003416?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0927776521003416?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.colsurfb.2021.111897" target="_blank" >10.1016/j.colsurfb.2021.111897</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Unraveling the influence of substrate on the growth rate, morphology and covalent structure of surface adherent polydopamine films

Popis výsledku v původním jazyce

Polydopamine (PDA), also known as synthetic melanin, is widely used as a biomimetic anchoring layer for the modification of various solid substrates. PDA is utilized for a wide range of biomedical, sensing and tribological applications, even though the polymer&apos;s precise covalent structure has not been completely revealed yet. Even more, it is not evident to which extent the chemical nature of the substrate, on which the layer is formed, influences and predetermines the covalent structure of resulting PDA. In this contribution, we have studied the growth of PDA using various surface-sensitive techniques such as spectroscopic ellipsometry, atomic force microscopy and X-ray photoelectron spectroscopy. We supplemented grazing angle attenuated total reflection FTIR spectroscopy with multivariate statistical analysis to further gain analytical power. We have particularly focused on the effects of polymerization time and substrate on the PDA structure. We found notable differences in the chemical composition of PDA formed on gold and on surfaces terminated with oxides/reactive hydroxides such as silicon and N-dopped-TiO2 in the early stages of the layer formation. At the later stages of layer formation, a merely unified chemical structure was observed independently on the type of substrate. © 2021 Elsevier B.V.

Název v anglickém jazyce

Unraveling the influence of substrate on the growth rate, morphology and covalent structure of surface adherent polydopamine films

Popis výsledku anglicky

Polydopamine (PDA), also known as synthetic melanin, is widely used as a biomimetic anchoring layer for the modification of various solid substrates. PDA is utilized for a wide range of biomedical, sensing and tribological applications, even though the polymer&apos;s precise covalent structure has not been completely revealed yet. Even more, it is not evident to which extent the chemical nature of the substrate, on which the layer is formed, influences and predetermines the covalent structure of resulting PDA. In this contribution, we have studied the growth of PDA using various surface-sensitive techniques such as spectroscopic ellipsometry, atomic force microscopy and X-ray photoelectron spectroscopy. We supplemented grazing angle attenuated total reflection FTIR spectroscopy with multivariate statistical analysis to further gain analytical power. We have particularly focused on the effects of polymerization time and substrate on the PDA structure. We found notable differences in the chemical composition of PDA formed on gold and on surfaces terminated with oxides/reactive hydroxides such as silicon and N-dopped-TiO2 in the early stages of the layer formation. At the later stages of layer formation, a merely unified chemical structure was observed independently on the type of substrate. © 2021 Elsevier B.V.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

21001 - Nano-materials (production and properties)

Projekt

<a href="/cs/project/GA20-08679S" target="_blank" >GA20-08679S: Studium počáteční self-assembly fáze tvorby biomimetických kotvících vrstev</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Colloids and Surfaces B: Biointerfaces

ISSN

0927-7765

e-ISSN

—

Svazek periodika

205

Číslo periodika v rámci svazku

září

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

111897

Kód UT WoS článku

000704341300003

EID výsledku v databázi Scopus

2-s2.0-85108075136