MXene wearables: properties, fabrication strategies, sensing mechanism and applications

Abstract

The current pandemic has forced the healthcare system into a transformation where the patients are required to be continuously monitored without the need for hospitalization. The advances in wearable sensors...

2D MXene‐Based Biosensing: A Review

“…for the fabrication of multifunctional devices for biosensing and many other applications. [132][133][134][135] In addition, MXene flakes size can be changed by ultrasonication and the layered structure of the MXene can be expanded via intercalation of organic molecules (Figure 2B), [136] thus weakening the interlayer interactions as discussed in the previous part. The delaminated Ti 3 C 2 T X is also able to produce single or few-layer flakes and these flakes have high zeta potential (−39.5 to −6 meV) unlike graphene which allows the fabrication of free-standing MXene electrodes for various applications.…”

“…for the fabrication of multifunctional devices for biosensing and many other applications. [ 132–135 ]…”

Flexible/wearable resistive gas sensors based on 2D materials

“…24 According to the requirements of the intended application, wearable sensors can be worn directly on the human skin or sewn into clothing or accessories. 25,26 The wearable gas sensors have high flexibility, high strength, and small size. 27 The wearable gas sensors are classified as ''on-body,'' ''in-clothing,'' or ''accessory'' type sensors.…”

Two-dimensional Ti3C2Tx MXene nanosheets for CO2 electroreduction in aqueous electrolytes

“…In the last decade, new families of two-dimensional materials, namely, metal carbides, nitrides, and carbonitrides (MXenes), discovered by Gogotsi et al, have aroused much attention. The applications of MXenes are extensively explored in the field of supercapacitors, 13 batteries, 14 electrochemical sensors, 15 and water splitting 16 applications due to their excellent electronic conductivity, inherent surface functional groups, and tunable interlayer spacing. 17,18 MXenes (M n+1 X n T x , where M is the transition element, X is carbon or nitrogen, and T x is the surface functional group such as -O, -F and -OH) are obtained by selective etching of A elements (A represents group 13 and 14 elements) from their parent MAX phases which have a general formula of M n+1 AX n .…”