6533b7d9fe1ef96bd126c44f

RESEARCH PRODUCT

Dependence of the Optical Constant Parameters of p-Toluene Sulfonic Acid-Doped Polyaniline and Its Composites on Dispersion Solvents

Nur Alia Sheh OmarKhe Cheng SeongYap Wing FenAmir Reza SadrolhosseiniJohn Ojur DennisA. Y. AhmedFahad UsmanFabrice MeriaudeauRidwan Tobi AyinlaBashir Abubakar AbdulkadirAbdelmoneim SuliemanWan Mohd Ebtisyam Mustaqim Mohd DaniyalNissren Tamam

subject

Materials scienceoptical constant parametersPharmaceutical Science02 engineering and technologyDielectricSulfonic acid01 natural sciencesOptical conductivityArticleAnalytical Chemistrylcsh:QD241-441chemistry.chemical_compoundlcsh:Organic chemistry0103 physical sciencesDrug DiscoveryPolyanilineDispersion (optics)Physical and Theoretical ChemistryComposite materialPenetration depth010302 applied physicschemistry.chemical_classificationAniline CompoundsOrganic ChemistryBenzenesulfonatesreduced graphene-oxide021001 nanoscience & nanotechnologyPyrrolidinonesSolventchemistryp-toluene sulfonic acid-doped polyanilineChemistry (miscellaneous)Molecular Medicinechitosan0210 nano-technologyRefractive indexsurface plasmon resonance (SPR)

description

The optical constants of Para-Toluene sulfonic acid-doped polyaniline (PANI), PANIchitosan composites, PANI-reduced graphene-oxide composites and a ternary composite comprising of PANI, chitosan and reduced graphene-oxide dispersed in diluted p-toluene sulfonic acid (PTSA) solution and N-Methyl-2-Pyrrolidone (NMP) solvent have been evaluated and compared. The optical constant values were extracted from the absorbance spectra of thin layers of the respective samples. The potential utilization of the materials as the active sensing materials of surface plasmon resonance biosensors has also been assessed in terms of the estimated value of the penetration depth through a dielectric medium. The results show a reasonable dependence of the optical constant parameters on the solvent type. Higher real part refractive index (n) and real part complex dielectric permittivity (&epsilon

yearjournalcountryeditionlanguage
2020-09-25Molecules
10.3390/molecules25194414http://europepmc.org/articles/PMC7582740