Ti₃C₂T_x MXene as Electrocatalyst for Designing Robust Glucose Biosensors

Abstract

Figure 10. a) Proposed mechanism for synthesis of Ag, Au and Pd NPs hybridized with Ti 3 C 2 T x MXene composites, b) UV-vis. spectroscopy analysis, c-f) FESEM images of MXene, Ag@MXene, Au@MXene, and Pd@MXene hybrid nanosheets, respectively. Reproduce with permission. [120]

Versatile MXenes as electrochemical sensors for heavy metal ions and phenolic moiety-containing industrial chemicals: recent development and prospects

“…To circumvent these constraints, researchers have attempted the synthesis of MXene nanocomposites, including carbonaceous materials, conducting polymers, MOFs, MOs, TMDCs, and others. 127 This process also amplifies the MXene sensing performance as it is inferred from the literature that atoms or molecules with different structures selectively interact with the surface of MXenes through electrostatic attractions or physical adsorption. 123 Nanoparticles of various morphologies are termed secondary nanoparticles that can be bonded to the MXene flaky surface, resulting in a mixed-dimensional heterostructure.…”

2D MXene‐Based Biosensing: A Review

“…[196] ✓ Dependent on the application. [197] Dynamic response range/Linear range ✓ The concentration range which corresponds to the maximum and minimum usable readout by an analytical signal that can be quantified by the sensing device. [198] ✓ Available surface area [199] ✓ Surface modification [200] ✓ Analyte-material interactions [187] Reproducibility ✓ Analytical device able to generate the same output signal when sample is tested more than one time in the same testing protocols.…”

“…Owing to the excellent absorption capability, MXenes are considered ideal light-to-heat conversion interfaces and photonelectron mediators to develop MXene-based optically active sensors that transduce bio-entities to the optical signal. [99,197] In general, Electrochemiluminescence and fluorescent sensors give great sensitivity and lower detection limits [376,377] while, surface plasmon resonance (SPR) and surface-enhanced Raman scattering (SERS) are potential techniques with less LOD. [378,379] Meanwhile, calorimetric sensors are semiquantitative or quantitative with moderate LODs.…”

Advances in MXene-Based Electrochemical (Bio)Sensors for Neurotransmitter Detection

“…MXene has unique characteristics including large specific surface area, abundant surface functional groups, high electrical conductivity, good stretchability and biocompatibility [ 27 , 28 , 29 ], making it an ideal candidate for constructing electrochemical (bio)sensors. The applications of MXene-based electrochemical (bio)sensors in the detection of drugs, environmental pollutants, and disease biomarkers have been summarized [ 30 , 31 , 32 , 33 , 34 , 35 ]. The applications of MXene-based electrochemical (bio)sensors in neurotransmitter detection have been increasingly reported since 2018, but a systematic summary is lacking so far.…”