Technology Roadmap for Flexible Sensors

ACS Nano, Journal Year: 2023, Volume and Issue: 17(6), P. 5211 - 5295

Published: March 9, 2023

Humans rely increasingly on sensors to address grand challenges and improve quality of life in the era digitalization big data. For ubiquitous sensing, flexible are developed overcome limitations conventional rigid counterparts. Despite rapid advancement bench-side research over last decade, market adoption remains limited. To ease expedite their deployment, here, we identify bottlenecks hindering maturation propose promising solutions. We first analyze achieving satisfactory sensing performance for real-world applications then summarize issues compatible sensor-biology interfaces, followed by brief discussions powering connecting sensor networks. Issues en route commercialization sustainable growth sector also analyzed, highlighting environmental concerns emphasizing nontechnical such as business, regulatory, ethical considerations. Additionally, look at future intelligent sensors. In proposing a comprehensive roadmap, hope steer efforts towards common goals guide coordinated development strategies from disparate communities. Through collaborative efforts, scientific breakthroughs can be made sooner capitalized betterment humanity.

Language: Английский

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2D Materials towards sensing technology: From fundamentals to applications

Sensing and Bio-Sensing Research, Journal Year: 2022, Volume and Issue: 38, P. 100540 - 100540

Published: Oct. 25, 2022

Language: Английский

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Controllable Preparation of 2D V₂O₅ Peroxidase‐Mimetic Nanozyme to Develop Portable Paper‐Based Analytical Device for Intelligent Pesticide Assay

Small, Journal Year: 2023, Volume and Issue: 19(14)

Published: Jan. 1, 2023

Abstract Given severe harmfulness of pesticides, unique characteristics peroxidase‐mimetic nanozymes, and favorable prospects paper‐based analytical devices (PADs), it is highly desirable to construct a nanozyme‐based PAD for intelligent analysis pesticide without enzyme/aptamer/antibody interference O 2 . Herein, 2D nanosheet‐like V 5 (2D‐VONz) with exclusive activity controllably prepared under the optimal reactants concentration reaction temperature. Experimental characterizations demonstrate that 2D‐VONz exhibits high affinity catalytic rate, oxidation dependent on •OH yielded from decomposition H catalyzed by 2D‐VONz, performance relevant π–π stacking force‐controlled surface zeta potential changed substrates, giving comprehensive understand inherent mechanism. Interestingly, inhibited glyphosate (Gly), then exploited develop PAD, which, Gly declines prevent catalyzing 3,3′,5,5′‐tetramethylbenzidine, contributing rapid, naked‐eye, portable using smartphone. The current strategy preparing nanozyme, investigating mechanism, developing achieving direct sensing will set up new avenues improve performance, strengthen practicability, broaden application scope nanozymes.

Language: Английский

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A 2D-0D-2D Sandwich Heterostructure toward High-Performance Room-Temperature Gas Sensing

ACS Nano, Journal Year: 2024, Volume and Issue: 18(4), P. 3669 - 3680

Published: Jan. 19, 2024

The construction of two-dimensional (2D) van der Waals (vdW) heterostructures over black phosphorus (BP) has been attracting significant attention to better utilize its inherent properties. sandwich zero-dimensional (0D) noble metals within BP-based vdW can provide efficient catalytic channels, modulating their surface redox potentials and therefore inducing versatile functionalities. Herein, we realize a 2D WS2-Au-BP heterostructure, in which Au nanoparticles are connected between BP WS2 via ionic bonds. ultralow conduction band minimum position, the reduced adsorption energies O2, increased dissociation barrier energy O2– into 2O contribute greatly improving long-term stability air. formation reduce potential target gas molecules, thus enhancing absorption charge transfer. Taking paramagnetic NO2 molecules as representative, stable response magnitude 2.11 100 ppb is achieved for 80 days, far larger than initial responses most materials. A practical sensing system also developed demonstrate real-world implementation. This work provides promising demonstration 0D metal heterostructure simultaneously room-temperature reversible sensing.

Language: Английский

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Twisted van der Waals Quantum Materials: Fundamentals, Tunability, and Applications

Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(4), P. 1992 - 2079

Published: Feb. 9, 2024

Twisted van der Waals (vdW) quantum materials have emerged as a rapidly developing field of two-dimensional (2D) semiconductors. These establish new central research area and provide promising platform for studying phenomena investigating the engineering novel optoelectronic properties such single photon emission, nonlinear optical response, magnon physics, topological superconductivity. captivating electronic result from, can be tailored by, interlayer coupling using moiré patterns formed by vertically stacking atomic layers with controlled angle misorientation or lattice mismatch. Their outstanding high degree tunability position them compelling building blocks both compact quantum-enabled devices classical optoelectronics. This paper offers comprehensive review recent advancements in understanding manipulation twisted structures presents survey state-of-the-art on superlattices, encompassing interdisciplinary interests. It delves into fundamental theories, synthesis fabrication, visualization techniques, wide range physical exhibited these structures, focus their potential practical device integration applications ranging from information to biosensors, including optoelectronics modulators, light emitting diodes, lasers, photodetectors. highlights unique ability superlattices connect multiple disciplines, covering chemistry, electronics, optics, photonics, magnetism, physics. provides valuable resource researchers interested shedding characteristics transformative various fields.

Language: Английский

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Covalently Functionalized MXenes for Highly Sensitive Humidity Sensors

Small Methods, Journal Year: 2023, Volume and Issue: 7(8)

Published: Feb. 19, 2023

Transition metal carbides and nitrides (MXenes) are an emerging class of 2D materials, which attracting ever-growing attention due to their remarkable physicochemical properties. The presence various surface functional groups on MXenes' surface, e.g., F, O, OH, Cl, opens the possibility tune properties through chemical functionalization approaches. However, only a few methods have been explored for covalent MXenes include diazonium salt grafting silylation reactions. Here, unprecedented two-step Ti3 C2 Tx is reported, where (3-aminopropyl)triethoxysilane covalently tethered serves as anchoring unit subsequent attachment organic bromides via formation CN bonds. Thin films functionalized with linear chains possessing increased hydrophilicity employed fabrication chemiresistive humidity sensors. devices exhibit broad operation range (0-100% relative humidity), high sensitivity (0.777 or 3.035), fast response/recovery time (0.24/0.40 s ΔH-1 , respectively), selectivity water in saturated vapors compounds. Importantly, our -based sensors display largest operating beyond state art MXenes-based Such outstanding performance makes suitable real-time monitoring applications.

Language: Английский

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Dielectrics for Two-Dimensional Transition-Metal Dichalcogenide Applications

ACS Nano, Journal Year: 2023, Volume and Issue: 17(11), P. 9870 - 9905

Published: May 31, 2023

Despite over a decade of intense research efforts, the full potential two-dimensional transition-metal dichalcogenides continues to be limited by major challenges. The lack compatible and scalable dielectric materials integration techniques restrict device performances their commercial applications. Conventional for bulk semiconductors are difficult adapt atomically thin materials. This review provides brief introduction into various common emerging synthesis discusses applicability 2D transition metal dichalcogenides. Dielectric applications is reviewed in subsequent sections including nanoelectronics, optoelectronics, flexible electronics, valleytronics, biosensing, quantum information processing, sensing. For each application, we introduce basic working principles, discuss specific requirements, current progress, present key challenges, offer insights future prospects opportunities.

Language: Английский

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Detection of DMF and NH₃ at Room Temperature Using a Sensor Based on a MoS₂/Single-Walled Carbon Nanotube Composite

ACS Applied Nano Materials, Journal Year: 2023, Volume and Issue: 6(12), P. 10698 - 10712

Published: June 13, 2023

Two-dimensional molybdenum disulfide (MoS2) with high surface area and layered structure has received substantial attention for its potential use in detecting volatile organic compounds (VOCs) trace gases good relative response selectivity at room temperature. However, two of the long-standing challenges to broader MoS2 are poor recovery kinetics susceptibility oxidation a humid environment. To address these issues, we present chemiresistive sensor based on MoS2/SWCNTs composite as sensing material dual detection N,N-dimethylformamide (DMF) ammonia (NH3) supports SWCNTs by providing superhydrophobic imparting environmental stability along an increased specific area. The composite-based 4 wt % enabled DMF NH3 down 0.1 1 ppm, respectively, under ambient conditions. Upon exposure 5 ppm (response ≈15%), this exhibited p-type conduction times 160 140 s, whereas, ≈25%, n-type), were 126 35 respectively. Moreover, against various oxidizing reducing agents well repeatability, long-term stability, fast reversibility varied gas atmospheres. We attribute enhanced performance formation numerous p–n interfaces synergy between nanomaterials. This improves charge transport leads faster response. experimental work was supplemented machine learning-based principal component analysis (PCA) model, which us identify key dependent variables confirm sensor's selectivity. These results provide platform developing next-generation sensors diverse gas-sensing applications.

Language: Английский

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Engineering and optimization of the SPR device ZnO/Ag/WO3/Ni/2D-Nanomaterials highly sensitive for biomedical processing and detection

Optical Materials, Journal Year: 2024, Volume and Issue: 149, P. 115019 - 115019

Published: Feb. 5, 2024

Language: Английский

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Trends in chemical sensors for non-invasive breath analysis

TrAC Trends in Analytical Chemistry, Journal Year: 2024, Volume and Issue: 177, P. 117792 - 117792

Published: May 25, 2024

The advancements of chemical sensors over the past 50 years have significantly expanded diversity available making them more affordable, portable, sensitive, and partially chemically selective. Despite these advancements, capability used in breath analysis has remained limited due to challenges that persist this field. This encompasses fluctuations humidity, temperature, oxygen concentration within all pose can affect sensor output. review article aims introduce compare techniques current arrays for analysis. A brief overview discrete employed research, at both commercial research levels, is discussed. Furthermore, trends data described. Finally, a detailed outlook recent diagnostic results from studies implementing last 5 outlined.

Language: Английский

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