Nano-FTIR spectroscopy of surface confluent polydopamine films - What is the role of deposition time and substrate material?
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F24%3A00582316" target="_blank" >RIV/61389013:_____/24:00582316 - isvavai.cz</a>
Alternative codes found
RIV/60461373:22340/24:43928121
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0927776524000274?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0927776524000274?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.colsurfb.2024.113769" target="_blank" >10.1016/j.colsurfb.2024.113769</a>
Alternative languages
Result language
angličtina
Original language name
Nano-FTIR spectroscopy of surface confluent polydopamine films - What is the role of deposition time and substrate material?
Original language description
Polydopamine (PDA) is a widely used anchoring layer for multiple purposes. While simple to prepare, PDA is characterized by high chemical and topological diversity, which can limit its versatility. Unraveling the formation mechanism and physicochemical properties of continuous confluent layer and adherent nanoparticles on the nanoscale is crucial to further extend the prospective applications of PDA. Utilizing nano-FTIR spectroscopy, we investigate layers of PDA on three different substrates (silicon/silicon dioxide, nitrogen-doped titanium oxide, and gold substrates) at varying times of deposition (ToD). We observed a good correlation between the nano-FTIR and macroscopic FTIR spectra that reflected the changes in the relative abundance of PDA and polymerization intermediates as ToD increased. To gain analytical power, we utilized the principal component analysis (PCA) and extracted additional information from the resulting loadings spectral curves and data distribution in the score plots. We revealed a higher variability of the spectra of ultrathin surface confluent layers compared to the adherent nanoparticles. While the spectra of nanoparticles showed no apparent dependency on either ToD or the substrate material, the spectra of layers were highly affected by the increasing ToD and exhibited a rise in the absorption of PDA. Concomitantly, the spectra of layers grouped according to the substrate material at the lowest ToD point to the fact that the substrate material affects the PDA's initial physicochemical structure. The observed separation gradually diminished with the increasing ToD as the PDA physicochemical structure became less influenced by the substrate material.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10404 - Polymer science
Result continuities
Project
<a href="/en/project/GA20-08679S" target="_blank" >GA20-08679S: Study of the initial self-assembly processes during the formation of biomimetic anchor layers</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Colloids and Surfaces B-Biointerfaces
ISSN
0927-7765
e-ISSN
1873-4367
Volume of the periodical
235
Issue of the periodical within the volume
March
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
10
Pages from-to
113769
UT code for WoS article
001176544500001
EID of the result in the Scopus database
2-s2.0-85184044379