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Influence of the type and concentration of oxidant on the photoacoustic response of polypyrrole nanoparticles for potential bioimaging applications

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F23%3A00564678" target="_blank" >RIV/61389013:_____/23:00564678 - isvavai.cz</a>

  • Result on the web

    <a href="https://www.sciencedirect.com/science/article/pii/S0379677922002120?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0379677922002120?via%3Dihub</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.synthmet.2022.117218" target="_blank" >10.1016/j.synthmet.2022.117218</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Influence of the type and concentration of oxidant on the photoacoustic response of polypyrrole nanoparticles for potential bioimaging applications

  • Original language description

    The photoacoustic response of polypyrrole particles was studied in relation to the type and amount of oxidant used for their synthesis by photoacoustic spectroscopy. At the same time, a detailed study of the molecular structure of these particles was performed using infrared and Raman spectroscopy. It was found that the particles prepared using superstoichiometric amounts of the oxidizer, nPy:nOxi = 1:3, in the case of FeCl3 and stochiometric nPy:nOxi = 1:1, in the case of (NH4)2S2O8 - showed the best photoacoustic output. At ratios nPy:nOxi oxidants equal to or less than 1:2 in the case of FeCl3, oligomers and polypyrrole with a longer kinetic chain length might be formed, whereas the higher oxidant content no longer affects the quality of the product. In the case of oxidation by (NH4)2S2O8, amounts of oxidant higher than 1:2 led to the formation of over-oxidized products. Although nanoparticles prepared at the stoichiometric ratios of both oxidizing agents were equivalent in terms of the molecular structure determined by the IR and Raman spectra, the particles prepared by (NH4)2S2O8 show a slightly stronger PA signal.

  • 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

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2023

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    Synthetic Metals

  • ISSN

    0379-6779

  • e-ISSN

    0379-6779

  • Volume of the periodical

    292

  • Issue of the periodical within the volume

    January-February

  • Country of publishing house

    CH - SWITZERLAND

  • Number of pages

    9

  • Pages from-to

    117218

  • UT code for WoS article

    000891386100002

  • EID of the result in the Scopus database

    2-s2.0-85141912525