Fabrication of electrochemical theophylline sensor based on manganese oxide nanoparticles/ionic liquid/chitosan nanocomposite modified glassy carbon electrode

Manganese oxide nanoflakes/multi-walled carbon nanotubes/chitosan nanocomposite modified glassy carbon electrode as a novel electrochemical sensor for chromium (III) detection

“…Metal oxide nanostructures, such as CoOx, NiOx, Fe 3 O 4 , IrOx are attractive candidate materials for electrode modification and electrochemical sensing platforms [31][32][33][34][35][36]. Manganese oxide (MnOx) nanostructures are one of the most attractive candidates as electrode material due to their low cost, environmental friendliness, nontoxic, natural abundance, relatively high energy density and high activity in alkaline media [37], so,they have been extensively utilized to construct chemical sensors or biosensors [38]. On the other hand, carbon nanotubes (CNTs) are considered as an important group of nanomaterials with attractive electronic, chemical and mechanical properties [39], so the compatibility and electrochemical applications of CNTs to immobilize a variety of species have been reported [40].…”

Simultaneous determination of morphine and codeine using Pt nanoparticles supported on porous silicon flour modified ionic liquid carbon paste electrode

“…Moreover, one of the main drawbacks of the carbon electrodes is their contamination by the products of electrochemical reactions and the components of solutions and atmosphere (fouling effects). The ability of IL to promote electron-transfer reactions and to offer resistance to surface fouling in CILE has been documented in connection with important biomolecules [18][19][20][21].…”

Selective electrochemical sensor for theophylline based on an electrode modified with imprinted sol–gel film immobilized on carbon nanoparticle layer

“…However, electrochemical methods have a main drawback of TP determination with common electrode materials (e.g., glassy carbon, metals) since its oxidation occurs at high positive potential, thus overlapping with the discharge of the electrolytic solution. To deal with this problem, the electrodes are modified with several materials such as carbon nanotubes, graphene oxide and manganese oxide nanoparticles [12][13][14][15][16].…”