Biobased Antimicrobial Coatings: Layer-by-Layer Assemblies Based on Natural Polyphenols
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F26%3A0197376" target="_blank" >RIV/00216305:26310/26:0197376 - isvavai.cz</a>
Result on the web
<a href="https://pubs.acs.org/doi/10.1021/acsapm.4c03681" target="_blank" >https://pubs.acs.org/doi/10.1021/acsapm.4c03681</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acsapm.4c03681" target="_blank" >10.1021/acsapm.4c03681</a>
Alternative languages
Result language
angličtina
Original language name
Biobased Antimicrobial Coatings: Layer-by-Layer Assemblies Based on Natural Polyphenols
Original language description
Natural polyphenols possess inherent defensive properties against pathogens. This study investigated the radical scavenging and antimicrobial activity of biobased polyphenol nanoparticles (PNPs) derived from grape seeds. Scanning electron micrographs and dynamic light scattering confirmed the synthesized nanoparticles’ spherical shape, showing an average hydrodynamic radius of 93.9 ± 4.0 nm. The PNPs exhibited radical scavenging activity at about 433 mg Trolox per gram and a microbial inhibitory effect against Micrococcus luteus and Escherichia coli. The negatively charged PNPs were used to prepare thin multilayer films combined with positively charged polyelectrolytes such as poly(allylamine hydrochloride), poly-l-lysine, poly(diallyldimethylammonium chloride), or polyethylenimine. The viscoelastic properties of polyelectrolyte/PNP films were monitored using a quartz crystal microbalance with dissipation. The PNPs showed the best interface compatibility with poly-l-lysine (PLL), enabling the preparation of mechanically stable thin multilayer films. The antioxidant activity of PLL/PNP films was 72 ± 6 μg Trolox per cm2 at pH 10. The PLL/PNP films displayed antimicrobial activity against M. luteus and E. coli, with growth inhibition of 50.7 ± 0.6% and 12.1 ± 0.6%, respectively. The prepared biobased PLL/PNP Layer-by-Layer assemblies can potentially prevent biofilm formation on a large spectrum of materials.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10404 - Polymer science
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
ACS Applied Polymer Materials
ISSN
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e-ISSN
2637-6105
Volume of the periodical
7
Issue of the periodical within the volume
6
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
3601-3610
UT code for WoS article
001445707500001
EID of the result in the Scopus database
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