Applications of Graphene-Based Materials in Sensors: A Review

Abstract

With the research and the development of graphene-based materials, new sensors based on graphene compound materials are of great significance to scientific research and the consumer market. However, in the past ten years, due to the requirements of sensor accuracy, reliability, and durability, the development of new graphene sensors still faces many challenges in the future. Due to the special structure of graphene, the obtained characteristics can meet the requirements of high-performance sensors. Therefore, graphene materials have been applied in many innovative sensor materials in recent years. This paper introduces the important role and specific examples of sensors based on graphene and its base materials in biomedicine, photoelectrochemistry, flexible pressure, and other fields in recent years, and it puts forward the difficulties encountered in the application of graphene materials in sensors. Finally, the development direction of graphene sensors has been prospected. For the past two years of the COVID-19 epidemic, the detection of the virus sensor has been investigated. These new graphene sensors can complete signal detection based on accuracy and reliability, which provides a reference for researchers to select and manufacture sensor materials.

Noble Metal‐Decorated Nanostructured Zinc Oxide: Strategies to Advance Chemiresistive Hydrogen Gas Sensing

“…Extensive studies on rGO-functionalized metal oxide gas sensors showed superior performances over pristine metal oxide gas sensors. [61][62][63][64][65] However, a successful H 2 gas sensor system should be able to work at a low temperature (preferably at RT or near it), be highly sensitive and selective at a low level of H 2 gas, fast, and have a long lifetime. In this context, a comparative performance of rGO-functionalized metal oxide sensors have been tabulated below.…”

Surface Analysis of Graphene and Graphite

“…Large-area, continuous, transparent, and highly conductive graphene, which can be produced by chemical vapor deposition (CVD) method, is used as an anode in photovoltaic devices with a power conversion efficiency of up to 1.71% [6]. The large specific surface area, flexibility, and high electrical conductivity of graphene make it an ideal material for sensors [7]. In particular, the graphene sensor for COVID-19 detection can detect viruses faster and more accurate [7].…”

“…The large specific surface area, flexibility, and high electrical conductivity of graphene make it an ideal material for sensors [7]. In particular, the graphene sensor for COVID-19 detection can detect viruses faster and more accurate [7]. For example, a graphene-based field-effect transistor biosensing device was created to detect spike protein on COVID-19 with a limit of detection of 1 fg mL −1 [8].…”

Electrochemiluminescence detection of Escherichia coli O157:H7 based on mesoporous Ca-doped MgAl2O3–G–SiO2 biosensor

“…9 Therefore, graphene is an ideal carbon nanomaterial due to its unique properties. 10 Because graphene has very high carrier mobility, the lack of a bandgap results in inferior transistor characteristics. Meanwhile, SiO 2 -based nanocomposites with excellent conductivity, catalytic activity, and biocompatibility have been shown to provide an extremely hydrophilic surface for biomolecule adhesion.…”