A label-free impedimetric immunosensor for zearalenone based on CS-CNT-Pd nanocomposite modified screen-printed disposable electrodes

Antibody-Conjugated Electrospun Nanofibers for Electrochemical Detection of Methamphetamine

“…To enhance the surface properties of biomolecule-covered surfaces, beneficial immobilization matrices are crucial in the design of sensing interfaces. 4,5 To fabricate immunosensors with high-quality sensing platforms, various materials such as natural 6 and synthetic polymers 7 and nanostructures such as gold nanoparticles, 8 quantum dots, 9 and carbon nanotubes 10 have been used as a support matrix for the immobilization of antibodies. Also, electrospun nanofibers (ENs) in immunosensor design have been attracting great attention nowadays because of their unique properties.…”

“…Novel materials and fabrication techniques provide the development of immunosensors with better performance characteristics. To enhance the surface properties of biomolecule-covered surfaces, beneficial immobilization matrices are crucial in the design of sensing interfaces. , To fabricate immunosensors with high-quality sensing platforms, various materials such as natural and synthetic polymers and nanostructures such as gold nanoparticles, quantum dots, and carbon nanotubes have been used as a support matrix for the immobilization of antibodies. Also, electrospun nanofibers (ENs) in immunosensor design have been attracting great attention nowadays because of their unique properties. , ENs may create a porous membrane structure with a high surface-to-volume ratio, which increases performance in a variety of applications. , The nanofiber structure, characteristics, and morphology are required for a variety of applications .…”

Conducting dyes as electro-active monomers and polymers for detecting analytes in biological and environmental samples

“…On the other side, disposable electrodes can be incorporated into electrochemical sensors for low-cost and rapid analysis of target analytes [ 30 ]. For example, disposable screen-printed electrodes have recently been incorporated into voltammetric [ 31 ], EIS [ 32 ], and amperometric [ 33 ] sensors for detecting analytes. Previously, conductive dyes were immobilized on screen-printed electrodes for the purpose of the enhancement of the electrochemical detection [ 34 ].…”

Nanoparticles in Electrochemical Immunosensors – A Concept and Perspective

“…Core-shell Au@AgNPs have been employed to promote a decrease in R ct working electrode and the bioreceptor optimal immobilization at the same time for the realization of a faradaic-impedimetric immunosensor detecting iron homeostasis biomarker hepcidin. [229] The same approach was adopted by using PdNPs-CNTs composites, [230] AuNPs@PEDOT [231] and AuNPs@MNPs [232] for detecting zearalenone (ZEN) in corn samples, SARS-CoV-2 antibodies in human serum and calreticulin (CRT) breast cancer biomarker respectively. Laser-induced one-step synthesis of Au, Ag, and PtNPs have been optimized by You and co-workers [233] and the three MeNPs were compared in impedimetric performance towards the redox couple K 3 Fe(CN) 6 /K 4 Fe(CN) 6 .…”