Graphene and Perovskite-Based Nanocomposite for Both Electrochemical and Gas Sensor Applications: An Overview

Abstract

Perovskite and graphene-based nanocomposites have attracted much attention and been proven as promising candidates for both gas (H2S and NH3) and electrochemical (H2O2, CH3OH and glucose) sensor applications. In this review, the development of portable sensor devices on the sensitivity, selectivity, cost effectiveness, and electrode stability of chemical and electrochemical applications is summarized. The authors are mainly focused on the common analytes in gas sensors such as hydrogen sulfide, ammonia, and electrochemical sensors including non-enzymatic glucose, hydrazine, dopamine, and hydrogen peroxide. Finally, the article also addressed the stability of composite performance and outlined recent strategies for future sensor perspectives.

Electrospun porous La–Sr–Co–Ni–O nanofibers for highly sensitive non-enzymatic glucose detection

“…8, although the sensitivity for those molecules is lower than that for glucose, these molecules also show linear response by the nonenzymatic biosensor. Similar behavior has also been reported for other metal oxide-based nonenzymatic glucose biosensors 27,28,38,[45][46][47][48][49] . Like most available glucose biosensors, glucose monitor interference by the coexisting biomolecules should be considered in real sample measurements 50 .…”

“…Perovskite oxide non-enzymatic glucose biosensors have shown great advantages, such as high sensitivity, high surface area, porosity, low cost, and flexibility. In particular, non-enzymatic glucose biosensors are stable to environmental change as no enzymes are used 22,26,[32][33][34][35][36][37][38][39][40] . Herein, lanthanum, strontium, nickel and cobalt perovskite nanofibers, a composition that has not been reported previously, were synthesized by using electrospinning method and characterized by various techniques, such as X-ray Diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and transmission electron microscopy (TEM).…”

“…In particular, non-enzymatic glucose biosensors are stable to environmental change as no enzymes are used. 22,26,32–40…”

Reduced Graphene Oxide and Polyaniline Nanofibers Nanocomposite for the Development of an Amperometric Glucose Biosensor

“…In addition, higher electrical conductivity leads to hydrophobic properties of the rGO surface. Since the structural stability, immobilization efficiency, and substrate binding affinity of glucose oxidase (GOx) depend on the hydrophobicity of the substrate [ 13 ], the employment of rGO nanocomposites is a key factor for the maintenance of immobilized GOx activity, keeping the positive effect of rGO on the biosensor analytical signal [ 14 , 15 ].…”

Sensitive Electrochemical Detection of Bioactive Molecules (Hydrogen Peroxide, Glucose, Dopamine) with Perovskites-Based Sensors

“…Several recent review papers were devoted to the sensory applications of perovskite based on their electrical and of optical properties [11][12][13][14][15][16][17]. This review paper is based on an exhaustive list of perovskite-based electrochemical sensors for the enzyme-free detection of hydrogen peroxide, glucose, and DA.…”