High-Performance Flexible Electrochemical Heavy Metal Sensor Based on Layer-by-Layer Assembly of Ti3C2Tx/MWNTs Nanocomposites for Noninvasive Detection of Copper and Zinc Ions in Human Biofluids

Xue, Hui; Sharifuzzaman, Md.; Sharma, Sudeep; Xing, Xuan; Zhang, Shi-Peng; Ko, Seok Gyu; Yoon, Sung Wook; Park, Jae Yeong

doi:10.1021/acsami.0c12239

Cited by 78 publications

(38 citation statements)

References 47 publications

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“…Their output signals can be fed back to the users either directly through circuits or by wireless communication. Various electrochemical sensing mechanisms, such as potentiometry [60,61], chronoamperometry [46,62], voltammetry [63,64], and electrochemical impedance spectroscopy [65,66], are substantially leveraged toward specific application scenarios where they all have their unique advantages.…”

Section: Electrochemical Sensingmentioning

confidence: 99%

Emerging wearable flexible sensors for sweat analysis

et al. 2021

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Sweat, as a biofluid with the potential for noninvasive collection, provides profound insights into human health conditions, because it contains various chemicals and information to be utilized for the monitoring of well-being, stress levels, exercise, and nutrition. Recently, wearable sweat sensors have been developed as a promising substitute to conventional laboratory sweat detection methods. Such sensors are promising to realize low-cost, real-time, in situ sweat measurements, and provide great opportunities for health status evaluation analysis based on personalized big data. This review first presents an overview of wearable sweat sensors from the perspective of basic components, including materials and structures for specific sensing applications and modalities. Current strategies and specific methods of the fabrication of wearable power management are also summarized. Finally, current challenges and future directions of wearable sweat sensors are discussed.

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Section: Electrochemical Sensingmentioning

confidence: 99%

Emerging wearable flexible sensors for sweat analysis

et al. 2021

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“…Figure adapted from ref. [ 84 ] ( g ) Cyclic Voltammogram of Ni-C4SH/Au mesh as working electrodes in the glucose of different concentrations at a scan rate of 50 mV s − 1 Figure adapted from ref [ 85 ] ( h ) LSV curves at 5 mV/s of Ni-Co oxide nanoplate Figure adapted from ref. [ 86 ] ( i ) Simultaneous measurements with increasing concentration of equimolar Dopamine and Uric Acid from 1 nM to 1000 μM, respectively (Figure adapted from ref [ 87 ]) …”

Section: Salient Applications Of 2d Materialsmentioning

confidence: 99%

2D materials: increscent quantum flatland with immense potential for applications

et al. 2022

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Quantum flatland i.e., the family of two dimensional (2D) quantum materials has become increscent and has already encompassed elemental atomic sheets (Xenes), 2D transition metal dichalcogenides (TMDCs), 2D metal nitrides/carbides/carbonitrides (MXenes), 2D metal oxides, 2D metal phosphides, 2D metal halides, 2D mixed oxides, etc. and still new members are being explored. Owing to the occurrence of various structural phases of each 2D material and each exhibiting a unique electronic structure; bestows distinct physical and chemical properties. In the early years, world record electronic mobility and fractional quantum Hall effect of graphene attracted attention. Thanks to excellent electronic mobility, and extreme sensitivity of their electronic structures towards the adjacent environment, 2D materials have been employed as various ultrafast precision sensors such as gas/fire/light/strain sensors and in trace-level molecular detectors and disease diagnosis. 2D materials, their doped versions, and their hetero layers and hybrids have been successfully employed in electronic/photonic/optoelectronic/spintronic and straintronic chips. In recent times, quantum behavior such as the existence of a superconducting phase in moiré hetero layers, the feasibility of hyperbolic photonic metamaterials, mechanical metamaterials with negative Poisson ratio, and potential usage in second/third harmonic generation and electromagnetic shields, etc. have raised the expectations further. High surface area, excellent young’s moduli, and anchoring/coupling capability bolster hopes for their usage as nanofillers in polymers, glass, and soft metals. Even though lab-scale demonstrations have been showcased, large-scale applications such as solar cells, LEDs, flat panel displays, hybrid energy storage, catalysis (including water splitting and CO2 reduction), etc. will catch up. While new members of the flatland family will be invented, new methods of large-scale synthesis of defect-free crystals will be explored and novel applications will emerge, it is expected. Achieving a high level of in-plane doping in 2D materials without adding defects is a challenge to work on. Development of understanding of inter-layer coupling and its effects on electron injection/excited state electron transfer at the 2D-2D interfaces will lead to future generation heterolayer devices and sensors.

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“…Besides, Hui, X. et al. [24b] fabricated a flexible electrochemical sensor based on a gold electrode modified with Ti 3 C 2 MXene and multiwalled carbon nanotubes (MWCNTs) for the detection of copper (Cu) and zinc (Zn) ions (Figure 17). The MWCNTs were incorporated as the anti‐pile layers and spacers to mitigate the aggregation problem between the Ti 3 C 2 layers and to expose more surface area and active sites of Ti 3 C 2 layers.…”

Section: Application Of Mxene In Electrochemical Sensorsmentioning

confidence: 99%

Application of MXene in Electrochemical Sensors: A Review

Sun

et al. 2021

Electroanalysis

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Electroanalysis has obtained considerable progress over the past few years, especially in the field of electrochemical sensors. Broadly speaking, electrochemical sensors include not only conventional electrochemical biosensors or non‐biosensors, but also emerging electrochemiluminescence (ECL) sensors and photoelectrochemical (PEC) sensors which are both combined with optical methods. In addition, various electrochemical sensing devices have been developed for practical purposes, such as multiplexed simultaneous detection of disease‐related biomarkers and non‐invasive body fluid monitoring. For the further performance improvement of electrochemical sensors, material is crucial. Recent years, a kind of two‐dimensional (2D) nanomaterial MXene containing transition metal carbides, nitrides and carbonitrides, with unique structural, mechanical, electronic, optical, and thermal properties, have attracted a lot of attention form analytical chemists, and widely applied in electrochemical sensors. Here, we reviewed electrochemical sensors based on MXene from Nov. 2014 (when the first work about electrochemical sensor based on MXene published) to Mar. 2021, dividing them into different types as electrochemical biosensors, electrochemical non‐biosensors, electrochemiluminescence sensors, photoelectrochemical sensors and flexible sensors. We believe this review will be of help to those who want to design or develop electrochemical sensors based on MXene, hoping new inspirations could be sparked.

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High-Performance Flexible Electrochemical Heavy Metal Sensor Based on Layer-by-Layer Assembly of Ti₃C₂T_x/MWNTs Nanocomposites for Noninvasive Detection of Copper and Zinc Ions in Human Biofluids

Cited by 78 publications

References 47 publications

Emerging wearable flexible sensors for sweat analysis

Emerging wearable flexible sensors for sweat analysis

2D materials: increscent quantum flatland with immense potential for applications

Application of MXene in Electrochemical Sensors: A Review

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