Abstract A miniaturized potentiometric saxitoxin sensor on graphene nanosheets with incorporated lipid films and Anti‐STX, the natural receptor, immobilized stabilized is described in present paper. An adequate selectivity for detection over a wide range of toxin concentrations, fast response time ca. 5–20 min, limit 1 nM have been achieved. The proposed easy to construct exhibits good reproducibility, reusability, selectivity, long shelf life high sensitivity 60 mV/decade concentration....

We performed a comparative analysis of the sensitivity aptamer-based biosensors for detection mycotoxin aflatoxin M1 (AFM1) depending on method immobilization DNA aptamers and detection. Label-free electrochemical impedance spectroscopy (EIS) differential pulse voltammetry (DPV) ferrocene labeled neutravidin layers were used this purpose. Amino-modified have been immobilized at surface polyamidoamine dendrimers (PAMAM) fourth generation (G4) or biotin-modified layer chemisorbed gold surface....

Abstract The present work describes a miniaturized potentiometric cholera toxin sensor on graphene nanosheets with incorporated lipid films. Ganglioside GM1, the natural receptor, immobilized stabilized films, provided adequate selectivity for detection over wide range of concentrations, fast response time ca. 5 min, and limit 1 nM. proposed is easy to construct exhibits good reproducibility, reusability, selectivity, long shelf life high sensitivity 60 mV/decade concentration. method was...

Abstract The present work describes a miniaturized potentiometric naphthalene acetic acid (NAA) sensor on graphene nanosheets with incorporated lipid films. Auxin‐binding protein 1 receptor immobilized the stabilized films provided adequate selectivity for detection over wide range of hormone concentrations, fast response time ca. 5 min, and limit 10 nM. proposed is easy to construct exhibits good reproducibility, reusability, selectivity, long shelf life high sensitivity 56 mV/decade...

Graphene is one of the new materials which has shown a large impact on electronic industry due to its versatile properties, such as high specific surface area, electrical conductivity, chemical stability, and spectrum electrochemical properties. The graphene material-based provided flexible devices are inexpensive, simple low power-consuming sensor tools, therefore opening an outstanding door in field portable devices. All these attractive advantages give platform for development generation...

Proteinaceous moieties are critical elements in most detection systems, including biosensing platforms. Their potential is undoubtedly vast, yet many issues regarding their full exploitation remain unsolved. On the other hand, biosensor formats with higher marketability probabilities enzyme nature and electrochemical concept. To no surprise, alternative materials for hosting catalysis within an electrode casing have received much attention lately to demonstrate a catalysis-coated device....

The exploitation of lipid membranes in biosensors has provided the ability to reconstitute a considerable part their functionality detect trace food toxicants and environmental pollutants. Nanotechnology enabled sensor miniaturization extended range biological moieties that could be immobilized within bilayer device. This chapter reviews recent progress biosensor technologies based on suitable for applications quality monitoring. Numerous biosensing are presented, putting emphasis novel...

Research and development in the biosensors for medical applications remain a focused area benefiting industry, society knowledge production alike. The framework established is conducive to innovation rapid assimilation of technological change. At advent nanotechnology, various biosensor classes have been benefited different ways, scales rates. This paper studies nanotechnology-driven shifting system towards new concepts broadening, depth extent, its science base. scientific domain...

An electrochemical aptasensor for the detection of tetracycline (TET) is prepared based on a methylene blue (MB)-tagged DNA aptamer, with sequence 5′-MB-CCC CCG GCA GGC CAC TTG GGTTGG TCC TGC GCG-thiol-3′. The aptamer chemisorbed gold electrode and differential pulse voltammetry (DPV) utilized detection. In particular, upon binding TET purpose-designed there an increase in current intensity, as result increased proximity MB molecule to surface. sensor tested using aqueous samples spiked...

This review provides information and details about the fabrication of biosensors composed lipid membranes that can be used to rapidly detect toxic compounds in food, environmental pollutants, analytes clinical interest. Biosensors based on polymeric have been a wide range these analytes, offering several advantages including fast response times, high sensitivity selectivity, portability for field applications, small size. A description construction devices their applications rapid detection...