TY - JOUR

T1 - Iron oxide - poly(m-anthranilic acid)-poly(ϵ-caprolactone) electrospun composite nanofibers

T2 - fabrication and properties

AU - Huner, Keziban

AU - Sarac, Baran

AU - Yüce, Eray

AU - Rezvan, Amir

AU - Micusik, Matej

AU - Omastova, Maria

AU - Eckert, Jürgen

AU - Sarac, A. Sezai

N1 - Publisher Copyright: © 2023 The Royal Society of Chemistry.

PY - 2022/12/2

Y1 - 2022/12/2

N2 - The inclusion of iron and carboxylic acid-functionalized polyaniline into polymeric polycaprolactone structures is expected to enhance the electron-donating ability which in turn increases the compound conductivity and may induce reversible redox chemistry, allowing them to be used in electrochemical immunosensors. Iron oxide-containing poly(m-anthranilic acid) (P3ANA)–polycaprolactone (PCL) composite nanofibers were electrospun and investigated by structural, morphological, chemical composition, and electrochemical analyses. The findings confirm that blending polymers of different characteristics and ratios improves morphologic homogeneity and electrical (impedimetric) properties. Frequency-dependent electrochemical investigation using electrochemical impedance spectroscopy shows remarkable changes in the percentage of polymer contents, particularly when Fe2O3 and Fe3O4 are present. The modifications in the chemical state of the samples confirmed by the C–O and C[double bond, length as m-dash]O peaks are analyzed by means of X-ray photoelectron spectroscopy. Hence, this study presents a new composite structure, iron (in two forms) P3ANA/PCL composite nanofibers, and the assessment of their intrinsic properties enabling the discovery of possible application fields in biomedical and sensor applications.

AB - The inclusion of iron and carboxylic acid-functionalized polyaniline into polymeric polycaprolactone structures is expected to enhance the electron-donating ability which in turn increases the compound conductivity and may induce reversible redox chemistry, allowing them to be used in electrochemical immunosensors. Iron oxide-containing poly(m-anthranilic acid) (P3ANA)–polycaprolactone (PCL) composite nanofibers were electrospun and investigated by structural, morphological, chemical composition, and electrochemical analyses. The findings confirm that blending polymers of different characteristics and ratios improves morphologic homogeneity and electrical (impedimetric) properties. Frequency-dependent electrochemical investigation using electrochemical impedance spectroscopy shows remarkable changes in the percentage of polymer contents, particularly when Fe2O3 and Fe3O4 are present. The modifications in the chemical state of the samples confirmed by the C–O and C[double bond, length as m-dash]O peaks are analyzed by means of X-ray photoelectron spectroscopy. Hence, this study presents a new composite structure, iron (in two forms) P3ANA/PCL composite nanofibers, and the assessment of their intrinsic properties enabling the discovery of possible application fields in biomedical and sensor applications.

UR - http://www.scopus.com/inward/record.url?scp=85143859251&partnerID=8YFLogxK

U2 - 10.1039/d2me00181k

DO - 10.1039/d2me00181k

M3 - Article

AN - SCOPUS:85143859251

VL - 8.2023

SP - 394

EP - 406

JO - Molecular Systems Design and Engineering

JF - Molecular Systems Design and Engineering

SN - 2058-9689

IS - 3

ER -