Review—Electrochemical Sensors and Biosensors Modified with Binary Nanocomposite for Food Safety

Abstract

Binary nanocomposite has become an excellent modification material for sensors and biosensors, which is superior to single nanomaterial. Multiple electrochemical sensors with four types of binary nanocomposites and biosensors with four biological elements were presented in the application of food safety. Different sensors for the detection of the same food analyte were contrasted. The synergistic effects and interactions of nanocomposites, and analytical performance of modified (bio)sensors are elaborated. The future perspectives for binary nanocomposites used on food (bio)sensors are discussed.

Investigation of kinetics and adsorption isotherm for fluoride removal from aqueous solutions using mesoporous cerium–aluminum binary oxide nanomaterials

“…This behavior could be attributed to the synergistic relationship between cerium and aluminum oxides to form the specic structure of the adsorbent, which is favorable for uoride adsorption. [70][71][72] Such a trend has also been shown by other researchers. [73][74][75][76][77] Thus, Ce-Al (1 : 6) was selected for further experiments as it showed maximum adsorption capacity for uoride.…”

Application of biosynthesized metal nanoparticles in electrochemical sensors

“…In electrochemical sensors design, in order to enhance the effective electrode surface and to increase the sensitivity, various nanomaterials such as carbon nanoparticles, metal/metal oxide nanoparticles, nanosized alloys and binary nanocomposites are used for the functionalization of electrode surface as a direct active layer. [83][84][85] As a result, modified electrodes have extremely high catalytic efficiency due to the reduced overpotentials and faster electron transfer kinetics.…”

Electrochemical Sensors for Determination of Bromate in Water and Food Samples—Review

“…Consequently, metal and metal oxide nanoparticles have succeeded in functionalizing other materials. The nanocomposites formed in the process have been put to a wide range of practical uses because a composite combines the attributes of its components [53]. This combination often results in the formation of materials with improved biocompatibility, surface area, conductivity and electrocatalytic activity, which culminate in better electron transfer kinetics compared to that of individual materials [54].…”