Emergence of MXene–Polymer Hybrid Nanocomposites as High‐Performance Next‐Generation Chemiresistors for Efficient Air Quality Monitoring

Abstract

Air contamination is one of the foremost concerns of environmentalists worldwide, which has elevated global public health concerns for monitoring air contaminants and implementing appropriate safety policies. These facts have generated nascent global demand for exploring sustainable and translational strategies required to engineer affordable, intelligent, and miniaturized sensors because commercially available sensors lack lower detection limits, room temperature operation, and poor selectivity. The state-of-the-art sensors are concerned with architecting advanced nanomaterials to achieve desired sensing performance. Recent studies demonstrate that neither pristine metal carbides/nitrides (MXenes) nor polymers (P) can address these practical challenges. However, synergistic combinations of various precursors as hybrid-nanocomposites (MXP-HNCs) have emerged as superior sensing materials to develop next-generation intelligent environmental, industrial, and biomedical sensors. The expected outcomes could be manipulative due to optimizing physicochemical and morphological attributes like tunable interlayer-distance, optimum porosity, enlarged effective surface area, rich surface functionalities, mechanical flexibility, and tunable conductivity. This review intends to detail a comprehensive summary of the advancements in state-of-the-art MXP-HNCs chemiresistors. Moreover, the underlying sensing phenomenon, chemiresistor architecture, and their monitoring performance are highlighted. Besides, an overview of challenges, potential solutions, and prospects of MXP-HNCs as next-generation intelligent field-deployable sensors with the integration of IoT and AI are outlined.

Artificial Intelligence (AI) and Internet of Medical Things (IoMT) Assisted Biomedical Systems for Intelligent Healthcare

“…Direct and rapid blood-glucose measurement is crucial for managing diabetes mellitus in a personalized manner. The physicochemical properties of Mxene help in enhancing the sensitivity of the sensing devices for biomedical, environmental, and food analytics applications [ 65 ]. Creating hybrid nanocomposite materials by combining a 2D Mxene with 1D nanostructures for enhancing the adhesion stability on the transducer surface for long-term monitoring has also been attempted [ 66 ].…”

Flow Injection Analysis-Based Electrochemiluminescence: An Overview of Experimental Design and Its Biosensing Applications

“…Even though, there have been plethora electrochemical-based methods developed for detection of immune assays, 99 DNA analysis, 100 drugs, 101 pesticides, [102][103][104][105] biomolecules, [106][107][108] air contaminants, 109,110 and heavy metal ions. 101 Among those, the FIA-ECL based method is highly sensitive towards various sensor applications due to its low back ground noise, flow of analyte avoids ECS Sensors Plus, 2022 1 031604 the byproducts accumulation on electrode surface, low cost, and easy to operate.…”

MXene-modified molecularly imprinted polymers as an artificial bio-recognition platform for efficient electrochemical sensing: progress and perspectives

“…74,75 Specifically, Ti 3 C 2 T x has been widely used in practical applications due to its mechanical strength and catalytic properties. 76 Several applications based on MXenes have been reported including supercapacitors, energy storage, environmental, air quality monitoring, 77 and biological sensors 78 due to their unique structural, electrical, and biological characteristics. 79 Sensors like electrochemical, fieldeffect transistors, gas, etc.…”