Ultrathin Self-Powered Heavy-Metal-Free Cu–In–Se Quantum Dot Photodetectors for Wearable Health Monitoring DOI

Shi Li,

Jae Hong Jang,

Wook‐Jin Chung

et al.

ACS Nano, Journal Year: 2023, Volume and Issue: 17(20), P. 20013 - 20023

Published: Oct. 3, 2023

Mechanically deformable photodetectors (PDs) are key device components for wearable health monitoring systems based on photoplethysmography (PPG). Achieving high detectivity, fast response time, and an ultrathin form factor in the PD is highly needed next-generation PPG systems. Self-powered operation without a bulky power-supply unit also beneficial point-of-care application. Here, we propose self-powered PDs using heavy-metal-free Cu-In-Se quantum dots (QDs), which enable high-performance Although light-absorbing QD layer extremely thin (∼40 nm), developed exhibits excellent performance (specific detectivity: 2.10 × 1012 Jones, linear dynamic range: 102 dB, spectral 250-1050 nm at zero bias), comparable to that of conventional rigid QD-PDs employing thick Pb-chalcogenide layers. This attributed material strategies─materials include QDs, MoS2-nanosheet-blended poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) hole transport layer, ZnO nanoparticle electron Ag ITO electrodes, (∼120 except electrodes) mechanical deformability. These allow successful application system real-time monitoring, expanding their potential field mobile bioelectronics.

Language: Английский

Artificial Intelligence Meets Flexible Sensors: Emerging Smart Flexible Sensing Systems Driven by Machine Learning and Artificial Synapses DOI Creative Commons

Tianming Sun,

Bin Feng, Jinpeng Huo

et al.

Nano-Micro Letters, Journal Year: 2023, Volume and Issue: 16(1)

Published: Nov. 13, 2023

The recent wave of the artificial intelligence (AI) revolution has aroused unprecedented interest in intelligentialize human society. As an essential component that bridges physical world and digital signals, flexible sensors are evolving from a single sensing element to smarter system, which is capable highly efficient acquisition, analysis, even perception vast, multifaceted data. While challenging manual perspective, development intelligent been remarkably facilitated owing rapid advances brain-inspired AI innovations both algorithm (machine learning) framework (artificial synapses) level. This review presents progress emerging AI-driven, systems. basic concept machine learning synapses introduced. new enabling features induced by fusion comprehensively reviewed, significantly applications such as sensory systems, soft/humanoid robotics, activity monitoring. two most profound twenty-first century, deep incorporation technology holds tremendous potential for creating beings.

Language: Английский

Citations

109
Bioinspired MXene‐Based Piezoresistive Sensor with Two‐stage Enhancement for Motion Capture DOI
Shenglong Wang, Weili Deng, Tao Yang

et al.

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(18)

Published: Feb. 9, 2023

Abstract Structured piezoresistive membranes are compelling building blocks for wearable bioelectronics. However, the poor structural compressibility of conventional microstructures leads to rapid saturation detection range and low sensitivity devices, limiting their commercial applications. Herein, a bioinspired MXene‐based device is reported, which can effectively boost while broadening response by architecting intermittent villus‐like microstructures. Benefitting from two‐stage amplification effect this architecture, developed bioelectronics exhibit high 461 kPa −1 broad pressure up 311 kPa, about 20 5 times higher than that homogeneous microstructures, respectively. Cooperating with deep‐learning algorithm, designed capture complex human movements precisely identify motion recognition accuracy 99%. Evidently, architecture biomimetic strategy may pave promising avenue overcome limitation in bioelectronics, provide general way promote its large‐scale

Language: Английский

Citations

101
Machine learning-augmented surface-enhanced spectroscopy toward next-generation molecular diagnostics DOI Creative Commons
Hong Zhou, Liangge Xu, Zhihao Ren

et al.

Nanoscale Advances, Journal Year: 2022, Volume and Issue: 5(3), P. 538 - 570

Published: Nov. 7, 2022

This review summarizes the integration of machine learning with surface-enhanced Raman scattering and infrared absorption in terms concepts, processes, applications, provides an outlook on future development this technology.

Language: Английский

Citations

73
Mechanochromic Optical/Electrical Skin for Ultrasensitive Dual-Signal Sensing DOI
Heng Zhang, Haomin Chen,

Jeng‐Hun Lee

et al.

ACS Nano, Journal Year: 2023, Volume and Issue: 17(6), P. 5921 - 5934

Published: March 15, 2023

Following earlier research efforts dedicated to the realization of multifunctional sensing, recent developments artificial skins endeavor go beyond human sensory functions by integrating interactive visualization strain and pressure stimuli. Inspired microcracked structure spider slit organs mechanochromic mechanism chameleons, this work aims design a flexible optical/electrical skin (OE-skin) capable responding complex stimuli with feedback human-readable structural colors. The OE-skin consists an ionic electrode combined elastomer dielectric layer, chromotropic layer containing photonic crystals conductive carbon nanotube/MXene layer. electrode/dielectric layers function as capacitive sensor. ferroferric oxide–carbon magnetic arrays embedded in gelatin/polyacrylamide stretchable hydrogel film perceive bright color switching outputs full visible spectrum. underlying is devoted ultrasensitive sensing gauge factor 191.8. multilayered delivers ultrafast, accurate response for detection limit 75 Pa long-term stability 5000 cycles, while visualizing deformations form high-resolution spatial These findings offer deep insights into rational OE-skins devices.

Language: Английский

Citations

72
Intrinsic Self-Healing Chemistry for Next-Generation Flexible Energy Storage Devices DOI Creative Commons
Xin Wan,

Tiansheng Mu,

Geping Yin

et al.

Nano-Micro Letters, Journal Year: 2023, Volume and Issue: 15(1)

Published: April 10, 2023

The booming wearable/portable electronic devices industry has stimulated the progress of supporting flexible energy storage devices. Excellent performance not only requires component units each device to maintain original under external forces, but also demands overall be in response fields. However, inevitably occur mechanical damages (extrusion, impact, vibration)/electrical (overcharge, over-discharge, short circuit) during long-term complex deformation conditions, causing serious degradation and safety risks. Inspired by healing phenomenon nature, endowing with self-healing capability become a promising strategy effectively improve durability functionality Herein, this review systematically summarizes latest intrinsic chemistry for Firstly, main mechanism is introduced. Then, research situation electrodes, electrolytes, artificial interface layers integrated based on advanced characterization technology reviewed. Finally, current challenges perspective are provided. We believe critical will contribute development field.

Language: Английский

Citations

52
Ultra-Broad Linear Range and Sensitive Flexible Piezoresistive Sensor Using Reversed Lattice Structure for Wearable Electronics DOI
Joohyung Bang, Byungkwon Chun, Jaeyoung Lim

et al.

ACS Applied Materials & Interfaces, Journal Year: 2023, Volume and Issue: 15(28), P. 34120 - 34131

Published: July 11, 2023

Flexible pressure sensors have attracted significant attention owing to their broad applicability in wearable electronics and human-machine interfaces. However, it is still challenging simultaneously achieve a sensing range high linearity. Here, we present reversed lattice structure (RLS) piezoresistive sensor obtained through layer-level engineered additive infill via conventional fused deposition modeling three-dimensional (3D) printing. The optimized RLS attained (0.03-1630 kPa) with linearity (coefficient of determination, R2 = 0.998) sensitivity (1.26 kPa-1) due the structurally enhanced compressibility spontaneous transition dominant mechanism sensor. It also exhibited great mechanical/electrical durability rapid response/recovery time (170/70 ms). This remarkable performance enables detection various human motions over spectrum, from pulse walking. Finally, electronic glove was developed analyze distribution situations, thereby demonstrating its multipurpose electronics.

Language: Английский

Citations

44
Recent Advances in In-Memory Computing: Exploring Memristor and Memtransistor Arrays with 2D Materials DOI Creative Commons
Hangbo Zhou, Sifan Li, Kah‐Wee Ang

et al.

Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 16(1)

Published: Feb. 19, 2024

The conventional computing architecture faces substantial challenges, including high latency and energy consumption between memory processing units. In response, in-memory has emerged as a promising alternative architecture, enabling operations within arrays to overcome these limitations. Memristive devices have gained significant attention key components for due their high-density arrays, rapid response times, ability emulate biological synapses. Among devices, two-dimensional (2D) material-based memristor memtransistor particularly candidates next-generation computing, thanks exceptional performance driven by the unique properties of 2D materials, such layered structures, mechanical flexibility, capability form heterojunctions. This review delves into state-of-the-art research on memristive encompassing critical aspects material selection, device metrics, array potential applications. Furthermore, it provides comprehensive overview current challenges limitations associated with along solutions. primary objective this is serve milestone in realizing utilizing materials bridge gap from single-device characterization array-level system-level implementations neuromorphic leveraging devices.

Language: Английский

Citations

34
Multi-Level Pyramidal Microstructure-Based Pressure Sensors with High Sensitivity and Wide Linear Range for Healthcare Monitoring DOI
Tongge An, Yongjun Zhang,

Jiahong Wen

et al.

ACS Sensors, Journal Year: 2024, Volume and Issue: 9(2), P. 726 - 735

Published: Jan. 24, 2024

Flexible pressure sensors have garnered significant attention in the field of wearable healthcare due to their scalability and shape variability. However, a crucial challenge practical application for various scenarios is striking balance between sensitivity sensing range. This limitation arises from reduced compressibility microstructures on surface pressure-sensitive materials under high pressure, resulting progressive saturation sensor's response leading restricted nonlinear In this study, we present novel approach utilizing multi-level pyramidal flexible achieve both (8775 kPa–1) linear (R2 = 0.997) over wide range (up 1000 kPa). The effectiveness proposed design stems compensatory behavior lower microstructures, which counteracts declining associated with gradual hardening higher microstructures. Furthermore, sensor demonstrates fast time 11.6 ms relaxation 3.8 can reliably detect pressures as low 30.2 Pa. Our findings highlight applicability diverse human body health detection tasks, ranging weak pulses finger flexion plantar distribution. Notably, eliminates need replacing varying ranges, thereby enhancing utility.

Language: Английский

Citations

33
Challenges and Advances of Hydrogel-Based Wearable Electrochemical Biosensors for Real-Time Monitoring of Biofluids: From Lab to Market. A Review DOI
Hossein Chenani, Mohsen Saeidi, MahsaSadat Adel Rastkhiz

et al.

Analytical Chemistry, Journal Year: 2024, Volume and Issue: 96(20), P. 8160 - 8183

Published: Feb. 20, 2024

ADVERTISEMENT RETURN TO ISSUEPREVReviewNEXTChallenges and Advances of Hydrogel-Based Wearable Electrochemical Biosensors for Real-Time Monitoring Biofluids: From Lab to Market. A ReviewHossein ChenaniHossein ChenaniDepartment Materials Science Engineering, Sharif University Technology, 14588 89694 Tehran, IranMore by Hossein ChenaniView Biographyhttps://orcid.org/0009-0009-6924-6491, Mohsen Saeidi*Mohsen SaeidiDepartment Iran*Tel: +98-21-6616 5262; Fax: +98-21-6600 5717; Email: [email protected]More SaeidiView Biographyhttps://orcid.org/0000-0001-5430-3339, MahsaSadat Adel RastkhizMahsaSadat RastkhizDepartment RastkhizView Biographyhttps://orcid.org/0009-0002-6628-6868, Nafiseh BolghanabadiNafiseh BolghanabadiDepartment BolghanabadiView Biographyhttps://orcid.org/0009-0004-1151-2201, Amir AghaiiAmir AghaiiDepartment AghaiiView Biographyhttps://orcid.org/0009-0006-2561-9119, Mina OroujiMina OroujiDepartment OroujiView Biographyhttps://orcid.org/0009-0007-6375-6437, HatamieAmir HatamieDepartment Chemistry Molecular Biology, Gothenburg, Sweden; Department Chemistry, Institute Advanced Studies in Basic Sciences (IASBS), Prof. Sobouti Boulevard, PO Box 45195-1159, Zanjan 45137-66731, HatamieView Biographyhttps://orcid.org/0000-0002-7085-893X, Abdolreza Simchi*Abdolreza SimchiDepartment IranCenter Bioscience Convergence Tehran 14588-89694, 5226; SimchiView Biographyhttps://orcid.org/0000-0002-9111-2977Cite this: Anal. Chem. 2024, 96, 20, 8160–8183Publication Date (Web):February 2024Publication History Received2 September 2023Accepted1 February 2024Revised24 January 2024Published online20 inissue 21 May 2024https://pubs.acs.org/doi/10.1021/acs.analchem.3c03942https://doi.org/10.1021/acs.analchem.3c03942review-articleACS PublicationsCopyright © 2024 American Chemical SocietyRequest reuse permissionsArticle Views1518Altmetric-Citations1LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum full text article downloads since November 2008 (both PDF HTML) across all institutions individuals. These metrics regularly updated reflect usage leading up last few days.Citations number other articles citing this article, calculated Crossref daily. Find more information about citation counts.The Altmetric Attention Score is a quantitative measure attention that research has received online. Clicking on donut icon will load page at altmetric.com with additional details score social media presence given article. how calculated. Share Add toView InAdd Full Text ReferenceAdd Description ExportRISCitationCitation abstractCitation referencesMore Options onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose SUBJECTS:Biotechnology,Carbohydrates,Electrodes,Hydrogels,Sensors Get e-Alerts

Language: Английский

Citations

29
New Carbon Materials for Multifunctional Soft Electronics DOI
Jie Xue, Dan Liú,

Da Li

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: March 16, 2024

Soft electronics are garnering significant attention due to their wide-ranging applications in artificial skin, health monitoring, human-machine interaction, intelligence, and the Internet of Things. Various soft physical sensors such as mechanical sensors, temperature humidity fundamental building blocks for electronics. While fast growth widespread utilization electronic devices have elevated life quality, consequential electromagnetic interference (EMI) radiation pose potential threats device precision human health. Another substantial concern pertains overheating issues that occur during prolonged operation. Therefore, design multifunctional exhibiting excellent capabilities sensing, EMI shielding, thermal management is paramount importance. Because prominent advantages chemical stability, electrical conductivity, easy functionalization, new carbon materials including nanotubes, graphene its derivatives, graphdiyne, sustainable natural-biomass-derived particularly promising candidates This review summarizes latest advancements based on across a range performance aspects, mainly focusing structure or composite design, fabrication method signals management. Furthermore, integration strategies corresponding intriguing highlighted. Finally, this presents prospects aimed at overcoming current barriers advancing development state-of-the-art

Language: Английский

Citations

28