Fabrication of Graphene/Molybdenum Disulfide Composites and Their Usage as Actuators for Electrochemical Sensors and Biosensors

Abstract

From the rediscovery of graphene in 2004, the interest in layered graphene analogs has been exponentially growing through various fields of science. Due to their unique properties, novel two-dimensional family of materials and especially transition metal dichalcogenides are promising for development of advanced materials of unprecedented functions. Progress in 2D materials synthesis paved the way for the studies on their hybridization with other materials to create functional composites, whose electronic, physical or chemical properties can be engineered for special applications. In this review we focused on recent progress in graphene-based and MoS2 hybrid nanostructures. We summarized and discussed various fabrication approaches and mentioned different 2D and 3D structures of composite materials with emphasis on their advances for electroanalytical chemistry. The major part of this review provides a comprehensive overview of the application of graphene-based materials and MoS2 composites in the fields of electrochemical sensors and biosensors.

Recent Advances of Nanomaterials-Based Molecularly Imprinted Electrochemical Sensors

“…Transition metal dichalcogenides (TMDs) are known as graphene analogues, which are made by stacking transition metal and sulfur sheets through van der Waals forces [ 72 ]. Molybdenum disulfide (MoS 2 ) is a typical example.…”

The Microbiome Meets Nanotechnology: Opportunities and Challenges in Developing New Diagnostic Devices

“…[91,[105][106][107] More recently, researchers have been working on exploiting the high electron mobility and capacity of 2D nanomaterials such as reduced graphene oxide and molybdenum disulfide to enhance electrodes' conductivity and analytical performance. [108,109] Since its discovery in 2004, [110] graphene has attracted considerable attention owing to its remarkable properties, including high carrier mobility and capacity, an ultrathin form factor, an ambipolar field effect, and highly tunable conductance. [111,112] Graphene has been extensively explored in the development of high sensitivity biosensors based on FETs (gFETs), by using the resistivity variation in the gFETs due to the binding of the target molecule to the bioreceptor on its surface.…”

Binary MoS2 nanostructures as nanocarriers for amplification in multiplexed electrochemical immunosensing: simultaneous determination of B cell activation factor and proliferation-induced signal immunity-related cytokines

“…Electrochemical biosensors prepared with sheets [ 10 , 11 ], nanoparticles [ 12 ], or MoS 2 quantum dots [ 13 ] have been reported. Furthermore, the poor intrinsic conductivity of MoS 2 has been improved by preparation of hybrids or composites with carbon nanomaterials to enhance the electron transfer reaction at the interface [ 14 ]. Various electrochemical biosensors involving hybrids of MoS 2 and graphene oxide (GO) [ 15 , 16 ] or carbon nanotubes (CNTs) [ 17 ] have been reported.…”