Ultrasensitive electrochemical immunoassay for CEA through host–guest interaction of β-cyclodextrin functionalized graphene and Cu@Ag core–shell nanoparticles with adamantine-modified antibody

Recent advances for cyclodextrin-based materials in electrochemical sensing

“…For another report, a modular labeling strategy was presented for electrochemical immunoassay via supramolecular host-guest interaction between β-CD and ADA [68]. Similar to reference [56], β-CD molecules were not used directly for analyte recognition but as linkers to immobilize antibody herein. Comparing to the covalent chemistry for immobilizing antibodies, the introduced host-guest interaction method is more simple without an additional catalyst, and the small-molecule (ADA) label not only made the binding more efficient but also increased the amount labeled on antibodies for further binding of the signal tag by the host-guest interaction.…”

“…The β-CD/RG nanohybrids prepared by the wet chemistry were also used to construct electrochemical immunoassay for carcino-embryonicantigen (CEA) ( Figure 5) [56]. Herein, the β-CD/RG was not used directly for analyte recognition, and it was used as linkers to immobilize Compared with planar graphene, three-dimensional (3D) structure graphene possesses a much higher surface-area-to-volume ratio.…”

Controllable preparation of hierarchically core–shell structure NiO/C microspheres for non-enzymatic glucose sensor

“…While core-shelled materials present different physical and chemical properties due to the unique morphology and structure [15][16][17]. Inspired by these previous works, we conduct controllable synthesis of hierarchically structured single-, double-, triple-and quadri-shelled NiO/C microspheres via layer-by-layer selfassembly way.…”

Synthesis and electrocatalytic effect of Ag@Pt core–shell nanoparticles supported on reduced graphene oxide for sensitive and simple label-free electrochemical aptasensor

“…Since bimetallic core-shell nanoparticles show interesting catalytic, optical, electronic and magnetic properties than not only from the bulk metals, but also from the corresponding monometallic particles, recently, they have received significant attention (Boomi et al, 2013;Gao et al, 2015;Li et al, 2014;Liu et al, 2014;G. Wang et al, 2010).…”