Physicochemical properties of sustainable caped ZnO-Dendrimer nanocomposite with aqueous DMSO interfaces from 298.15–313.15 K

Abstract

FRSA (free radical scavenging activity) of antioxidant polyphenols (APP) capped ZnO NPs is tuned with TTDMM (trimesoyl tridimethyl malonate) interfaces in aq.DMSO by modulating undesired effect of DMSO. Such action occurs on interlocuting hydrophobic and hydrophobic interactions of –CH3 groups (DMSO) with 6 terminal –CH3 groups of TTDMM tweezer respectively. The studies are supported with physiochemical contour of APP capped ZnO (c-ZnO) and c-ZnO NPs loaded TTDMM nanocomposites (cZTNCs) dispersed in aqueous (aq.) and aq.DMSO respectively to form nanocolloids. Intermolecular interactions for dispersion and stability have been explored via density (ρ), sound velocity (u), isentropic compressibility (Ks), acoustic impedance (Z), thermal expansion coefficient (β), surface tension (γ), viscosity (η), friccohesity (σ), light velocity (C) and refractive index (μri) from (298.15 to 313.15) K. The values of these structural parameters infer the impacts of APP and TTDMM on surface reengineering of nanocolloids via philicphobic domain, London dispersive forces (LDF), van der Waals forces (VWF), and hydrogen bond (HB). Besides this, the nanocolloids are not getting destructured but monodispersed and were analyzed through the said physiochemical parameters. FTIR stretching frequencies (SF) of nanocolloids have synchronized their intermolecular interactions with the surrounding medium. The unaltered surface plasmon resonance (SPR) peak for cZTNC nanocolloids inferred stability via UV/Vis spectra. The moderate negative values for Gibbs energy (ΔG), enthalpy (ΔH),entropy (ΔS), and positive activation energy (Ea) with least Ks have inferred thermodynamically and kinetically (TAK) stable cZTNC nanocolloids as the void spaces of TTDMM tweezer entrap c-ZnO NPs to a specific orientation.