Magnetic nanoparticles embedded with graphene quantum dots and multiwalled carbon nanotubes as a sensing platform for electrochemical detection of progesterone

Carbon-based quantum particles: an electroanalytical and biomedical perspective

“…185 The combination of a high conductive carbon nanostructure like MWCNTs with GQDs and Fe3O4 NPs resulted in the formation of a three dimensioned porous GQDs/Fe3O4/MWCNT nanohybrid, 186 exhiting a higher electrocatalytic activity towards progesterone with a LOD of 2.18 nM and a sensitivity of 16.84 μA μM −1 . 187 In the same year, Arvand et al fabricated a graphene quantum dots and poly (sulfosalicylic acid) co-modified electrode for the simultaneous detection of estradiol and progesterone, with LOD of 0.23 nM and 0.31 nM, respectively. 188…”

Electrochemical Sensor Based on Carbon Nanotubes Decorated with ZnFe2O4 Nanoparticles Incorporated Carbon Paste Electrode for Determination of Metoclopramide and Indomethacin

“…Hence different methods including sol‐gel and co‐precipitation methods have been used to prepare the spinel ferrites. These materials have been also applied to improve the electrochemical, optical and magnetic properties of graphene oxide, graphene quantum dots, and other carbon‐based materials …”

Efficient removal of Malachite Green from aqueous solution by adsorption on carbon nanotubes modified with ZnFe2O4 nanoparticles

“…), are of the most popular magnetic materials in analytical chemistry and can improve electrochemical, optical and magnetic properties of carbon based nanomaterials, such as carbon nanotubes (CNTs), 16 graphene oxide 17 and graphene quantum dots. 18 Zinc ferrite nanoparticle (ZnFe 2 O 4 NP), as one of the spinel ferrite compounds; have attracted increasing interest because of their good biocompatibility, low toxicity, electrical properties, easy synthesis and high adsorption ability. 19 In order to effectively utilize the advantages of both ferrite nanoparticles and carbon nanotubes, various kinds of modified CNTs have been synthesized by decorating CNTs with nanoparticles, such as CoFe 2 O 4 , 20 NiFe 2 O 4 21 and MnFe 2 O 4 .…”