Controlled functionalization of flexible graphene fibers for the simultaneous determination of ascorbic acid, dopamine and uric acid

Development of Miniaturized Electrochemiluminescence Instrument using Multi‐pixel Photon Counter as the Optical Detector

“…Since we used the bare electrode as the working electrode for the detection, its sensitivity is limited to mM range. We envision that the sensitivity and linear range can be greatly improved if the sensing electrodes were modified with some active materials such as carbon or metal-based nanomaterials [36,37].…”

A glassy carbon electrode modified with γ-Ce2S3-decorated CNT nanocomposites for uric acid sensor development: a real sample analysis

“…1(d), matched JCPDS # 50-0851 for the g-Ce 2 S 3 orthorhombic phase. 23 Peaks at 25.8 and 42.7 indicate the presence of CNT. [43][44][45][46][47] The more intense (211) peak at 23.2 implies that the (211) plane of the orthorhombic structure is slanted towards the experimental system.…”

“…[12][13][14][15] Liu et al proposed a CNT composite-based sensor for electrically conductive strain sensing, conductive thermoplastic polyurethane-graphene nanocomposite-based organic vapor sensing, and a strain sensor based on conductive thermoplastic elastomer-graphene nanocomposites. [16][17][18] Several redox mediators such as pristine graphene, 1 gold nanocluster, 3 Au-Pt bimetallic nanoclusters decorated on graphene oxide, 19 mesoporous nickel oxide, 3 polypyrrole lms doped with ferrocyanide ions onto an iron substrate, 20 reduced graphene oxide/zinc sulde nanocomposite, 21 calixarene-modied glassy carbon electrode, 22 exible graphene bers, 23 poly(glyoxal-bis(2hydroxyanil))-fabricated GCE, 24 CeO 2 nanoparticle-fabricated glassy carbon paste electrode, 25 iron nanoparticle-fabricated MWCNT enriched carbon paste electrode, 26 carbon nanohorns/ poly(glycine)-modied glassy carbon electrode 27 etc. have been developed to date for the modication of the electrode in UA detection; however, all these attempts are either time consuming, require sophisticated instruments or are not cost-effective for routine analysis.…”

Graphene Oxide Modified Electrodes for Dopamine Sensing

“…Owing to its unique electronic, mechanical, and thermal properties, graphene has been intensively employed as modification materials on the surface of different electrodes. Up to now, many modified electrodes supported by graphene oxide, such as graphene-metal oxide nanocomposite, GOcarbon dot composite, GO-bimetallic nanoclusters, layer-bylayer assembled multilayer films of GO/metal nanoparticles, GO/polymer nanosheets, and GO/hybrid polymer composite [64][65][66][67][68][69][70][71][72][73][74], have been successfully prepared for the electrochemical detection of dopamine and have shown their unique properties. Even so, the development of novel graphene combined with AuNPs nanocomposite for the electrochemical determination of dopamine remains interesting and challenging.…”