Electrochemical and radical properties of core-shell structure PDA@SiO2

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F24%3A00578203" target="_blank" >RIV/61389013:_____/24:00578203 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S037967792300214X?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S037967792300214X?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.synthmet.2023.117492" target="_blank" >10.1016/j.synthmet.2023.117492</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Electrochemical and radical properties of core-shell structure PDA@SiO2

Popis výsledku v původním jazyce

Radical and electrochemical properties of core-shell polydopamine structures (PDA@SiO2) were studied. We have successfully covered large silica nanoparticles (ca. 960 nm) with a thin layer of polydopamine. The radical’s concentration present in PDA is 1.32 × 10 to 15spin/mg and after synthesis in PDA@SiO2 system it is 8.4×10 to 13spin/mg. The core-shell structure maintained its radical scavenging properties due to a thin layer of PDA covering silica. Cyclic voltammetry (CV) shows a reduction of peak-to-peak potential separation and an increase of anodic and cathodic current with an increase in the scan rate. Electrochemical impedance spectroscopy shows the electrical connection between PDA and SiO2. PDA@SiO2 core-shell system is electrochemically nondegradable showing a quasi-reversible electrochemical response, which makes it a promising candidate for sensor applications.

Název v anglickém jazyce

Electrochemical and radical properties of core-shell structure PDA@SiO2

Popis výsledku anglicky

Radical and electrochemical properties of core-shell polydopamine structures (PDA@SiO2) were studied. We have successfully covered large silica nanoparticles (ca. 960 nm) with a thin layer of polydopamine. The radical’s concentration present in PDA is 1.32 × 10 to 15spin/mg and after synthesis in PDA@SiO2 system it is 8.4×10 to 13spin/mg. The core-shell structure maintained its radical scavenging properties due to a thin layer of PDA covering silica. Cyclic voltammetry (CV) shows a reduction of peak-to-peak potential separation and an increase of anodic and cathodic current with an increase in the scan rate. Electrochemical impedance spectroscopy shows the electrical connection between PDA and SiO2. PDA@SiO2 core-shell system is electrochemically nondegradable showing a quasi-reversible electrochemical response, which makes it a promising candidate for sensor applications.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10404 - Polymer science

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Synthetic Metals

ISSN

0379-6779

e-ISSN

0379-6779

Svazek periodika

301

Číslo periodika v rámci svazku

January-February

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

6

Strana od-do

117492

Kód UT WoS článku

001164744700001

EID výsledku v databázi Scopus

2-s2.0-85181740034