Antioxidant-rich brilliant polymeric nanocomposites for quick and efficient non-enzymatic hydrogen peroxide sensor.

Autor: Hashem MS; Polymers and Pigments Department, National Research Centre Dokki P.O. Box 12622 Giza Egypt ms.hashem@nrc.sci.eg., Magar HS; Applied Organic Chemistry Department, National Research Centre Dokki P.O. Box 12622 Giza Egypt., Fahim AM; Department of Green Chemistry, National Research Centre Dokki P.O. Box 12622 Giza Egypt., Sobh RA; Polymers and Pigments Department, National Research Centre Dokki P.O. Box 12622 Giza Egypt ms.hashem@nrc.sci.eg.
Jazyk: angličtina
Zdroj: RSC advances [RSC Adv] 2024 Apr 23; Vol. 14 (19), pp. 13142-13156. Date of Electronic Publication: 2024 Apr 23 (Print Publication: 2024).
DOI: 10.1039/d4ra01768d
Abstrakt: In our current research, a new type of functional nanocomposites known as poly(methyl methacrylate/ N , N -dimethyl aminoethylmethacrylate/( E )-2-cyano- N -cyclohexyl-3 (dimethylamino) acrylamide) [poly(MMA/DMAEMA/CHAA)] has been developed. These nanocomposites were created using microemulsion polymerization in conjunction with synthesized titanium dioxide (TiO 2 ), and vanadium pentoxide (V 2 O 5 ) nanoparticles. To understand the physio-chemical characteristics of the poly(MMA/DMAEMA/CHAA) and the metal oxide nanoparticles (MOs) integrated within them, various analytical techniques were employed. These techniques included Fourier-transform infrared spectroscopy (FT-IR), proton nuclear magnetic resonance ( 1 H NMR), X-ray diffraction analysis (XRD), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), transmission electron microscopy (TEM), and electrical approaches such as cyclic voltammetry (CV) and electrical impedance spectra (EIS). Based on the TEM results, nanospheres with a well-defined structure were developed for both the pure polymer and its composite with sizes ranging from 45 to 75 nm. All the TiO 2 and V 2 O 5 -based nanocomposites showed significantly enhanced electrical attributes, with capacitance values surpassing those of the poly(MMA/DMAEMA/CHAA) nanosphere assemblies by a considerable margin. As a result, both direct electron transfer and direct hydrogen peroxide identification were evaluated for the nanocomposites. The amperometry results demonstrated a lower detection limit of 0.0085 μM and a rapid linear sensitivity in the range of 1 to 800 μM. The greatly improved electrolytic qualities of these nanocomposites make them suitable for various applications in fields such as battery storage, sensors, and biosensors.
Competing Interests: The authors declare that none of the work reported in this study has been influenced by any known financial or personal relationships.
(This journal is © The Royal Society of Chemistry.)
Databáze: MEDLINE
Externí odkaz: