Preparation of smart surfaces based on PNaSS@PEDOT microspheres: testing of E. coli detection
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F22%3A00556325" target="_blank" >RIV/61389013:_____/22:00556325 - isvavai.cz</a>
Result on the web
<a href="https://www.mdpi.com/1424-8220/22/7/2784" target="_blank" >https://www.mdpi.com/1424-8220/22/7/2784</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/s22072784" target="_blank" >10.3390/s22072784</a>
Alternative languages
Result language
angličtina
Original language name
Preparation of smart surfaces based on PNaSS@PEDOT microspheres: testing of E. coli detection
Original language description
The main task of the research is to acquire fundamental knowledge about the effect of polymer structure on the physicochemical properties of films. A novel meta-material that can be used in manufacturing sensor layers was developed as a model. At the first stage, poly(sodium 4-styrenesulfonate) (PNaSS) cross-linked microspheres are synthesized (which are based on strong polyelectrolytes containing sulfo groups in each monomer unit), and at the second stage, PNaSS@PEDOT microspheres are formed. The poly(3,4-ethylenedioxythiophene) (PEDOT) shell was obtained by the acid-assisted self-polymerization of the monomer. This process is biologically safe and thus suitable for biomedical applications. The suitability of electrochemical impedance spectroscopy for E. coli detection was tested. It was revealed that the attached bacterial wall was destroyed upon application of constant oxidation potential (higher than 0.5 V), which makes the PNaSS@PEDOT microsphere particles promising materials for the development of antifouling coatings. Furthermore, under open-circuit conditions, the walls of E. coli bacteria were not destroyed, which opens up the possibility of employing such meta-materials as sensor films. Scanning electron microscopy, X-ray photoelectron spectroscopy, water contact angle, and wide-angle X-ray diffraction methods were applied in order to characterize the PNaSS@PEDOT films.
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
<a href="/en/project/NU20-06-00424" target="_blank" >NU20-06-00424: Implantable sensors for early detection of infection and bacterial colonization</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Sensors
ISSN
1424-8220
e-ISSN
1424-8220
Volume of the periodical
22
Issue of the periodical within the volume
7
Country of publishing house
CH - SWITZERLAND
Number of pages
15
Pages from-to
2784
UT code for WoS article
000781308900001
EID of the result in the Scopus database
2-s2.0-85127548197