ACS Sensors最新文献_第8页

Heterojunction Engineering of POMOF and ZnO: A Promising Strategy to Boost Triethylamine Gas-Sensing Performance for Fish Freshness Evaluation POMOF和ZnO的异质结工程：提高三乙胺气敏性能用于鱼类新鲜度评估的有希望的策略

IF 8.9 1区化学

ACS Sensors Pub Date : 2026-09-30 DOI: 10.1021/acssensors.6c03021

Meng Mei,Yi Zheng,Kaixin Cheng,Bo Yao,Liao Wang,Juan Wu,Xinxin Xing,Yude Wang

{"title":"Heterojunction Engineering of POMOF and ZnO: A Promising Strategy to Boost Triethylamine Gas-Sensing Performance for Fish Freshness Evaluation","authors":"Meng Mei,Yi Zheng,Kaixin Cheng,Bo Yao,Liao Wang,Juan Wu,Xinxin Xing,Yude Wang","doi":"10.1021/acssensors.6c03021","DOIUrl":"https://doi.org/10.1021/acssensors.6c03021","url":null,"abstract":"Abstract Triethylamine (TEA) serves as a key indicator of fish spoilage, and its accurate detection is essential for assessing fish freshness. However, existing TEA gas sensors often suffer from low sensitivity, sluggish response/recovery kinetics, and high operating temperatures. To address these limitations, this study, for the first time, integrates polyoxometalate-based metal–organic frameworks (POMOF) with ZnO via heterojunction engineering to construct a POMOF-ZnO heterojunction gas sensor. At an operating temperature of 140 °C, the sensor exhibits outstanding performance toward 10 ppm TEA, including a high response value (64.54), fast response/recovery times (49/108 s), excellent selectivity, and good long-term stability over 32 days. Material characterization reveals that the heterojunction formed between POMOF and ZnO significantly increases the number of active sites on the material surface. Furthermore, combining density functional theory (DFT) calculations, current–voltage (I–V) measurements, and in-situ Fourier transform infrared (FTIR) analysis, the underlying gas-sensing mechanism is systematically and comprehensively discussed. The practical applicability of the sensor is demonstrated by its successful detection of TEA released from crucian carp during room-temperature storage, highlighting its potential for rapid assessment of fish freshness. This work presents a novel approach for designing high-performance gas sensors based on POMOF-ZnO heterojunctions for fish freshness evaluation.","PeriodicalId":24,"journal":{"name":"ACS Sensors","volume":"42 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2026-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149092674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Aptamer-Functionalized Copolymer Films for Label-Free Capacitive Detection of Dopamine. 用于无标记电容检测多巴胺的适配体功能化共聚物薄膜。

IF 10.9 1区化学

ACS Sensors Pub Date : 2026-09-29 DOI: 10.1021/acssensors.6c02234

Yunyoung Choi, Soonjong Roh, Chae Hwan Cho, Tae Jin Mun, Jin Yoo, Hyejeong Seong

{"title":"Aptamer-Functionalized Copolymer Films for Label-Free Capacitive Detection of Dopamine.","authors":"Yunyoung Choi, Soonjong Roh, Chae Hwan Cho, Tae Jin Mun, Jin Yoo, Hyejeong Seong","doi":"10.1021/acssensors.6c02234","DOIUrl":"https://doi.org/10.1021/acssensors.6c02234","url":null,"abstract":"Dopamine (DA) plays a central role in regulating neural function, and its reliable detection is essential for both fundamental neuroscience research and bioanalytical applications. Capacitive biosensors combined with aptamer recognition offer a label-free sensing strategy; however, constructing reproducible and well-defined aptamer-functionalized interfaces remains a significant challenge. Here, we report a vapor-phase approach for engineering aptamer-based capacitive DA sensors using a poly(2-hydroxyethyl methacrylate-co-pentafluorophenyl methacrylate) (p(HEMA-co-PFMA)) copolymer film deposited by photo-initiated chemical vapor deposition (piCVD). The solvent-free deposition process enables the conformal and site-selective formation of nanoscale polymer films with precisely controlled chemical compositions. Pentafluorophenyl (PFP) ester moieties provide reactive sites for covalent conjugation of amine-modified DA aptamers, while the HEMA component tunes surface wettability and interfacial ionic behavior. The optimized pH1P4 copolymer film (HEMA:PFMA = 1:4) exhibited superior conjugation efficiency, and the resulting biofunctional electrodes achieved a limit of detection of 0.23 µM with excellent selectivity against structurally similar interferents. This vapor-phase interface engineering strategy offers a generalizable framework for constructing aptamer-functionalized capacitive biosensors applicable to diverse small-molecule targets and electrode configurations.","PeriodicalId":24,"journal":{"name":"ACS Sensors","volume":" ","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149079027","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Molecular Recognition and Charge Transport in Integrated Covalent Organic Frameworks-Carbon Nanotube Hybrids for Selective Gas Sensing. 用于选择性气体传感的集成共价有机骨架-碳纳米管杂化物中的分子识别和电荷输运。

IF 10.9 1区化学

ACS Sensors Pub Date : 2026-09-29 DOI: 10.1021/acssensors.6c01655

Jun Miao, Saidkhodzha Nematulloev, Zhuo Chen, Yuming Jin, Maha A Nour, Dana Alsulaiman, Ali H Alshehri, Khaled Nabil Salama

{"title":"Molecular Recognition and Charge Transport in Integrated Covalent Organic Frameworks-Carbon Nanotube Hybrids for Selective Gas Sensing.","authors":"Jun Miao, Saidkhodzha Nematulloev, Zhuo Chen, Yuming Jin, Maha A Nour, Dana Alsulaiman, Ali H Alshehri, Khaled Nabil Salama","doi":"10.1021/acssensors.6c01655","DOIUrl":"https://doi.org/10.1021/acssensors.6c01655","url":null,"abstract":"Translating molecular recognition in porous frameworks into stable electronic signals remains a central challenge for framework-based electronic materials. Herein, we establish a covalent design strategy that co-engineers molecular recognition and charge transport within a single framework-conductor architecture by stepwise integrating selective adsorption in the porous COF with efficient charge transport through the CNT scaffold, thereby enabling direct electronic transduction of host-guest interactions without external conductive additives or post-processing. The COF-CNT sensor detects CO2 rapidly and reversibly at room temperature (response/recovery: ∼36 s/∼58 s), remains stable under humid and mixed-gas conditions typical of petroleum environments, shows a linear chemiresistive response from 300-3000 ppm CO2, and is selective against CH4, C2H6, C3H8, and H2S. Density functional theory calculations indicate significantly stronger adsorption of CO2 (-0.71 eV) than the interfering gases, together with a calculated electron transfer of 0.12 e from the CNT to the adsorbate in the modeled CO2 adsorption configuration. Combined with the experimentally observed resistance decrease, these results are consistent with electron withdrawal from the hole-dominated transport behavior commonly observed in air-exposed CNT networks, which would increase the hole-carrier concentration and contribute to electronic transduction. This work defines a general construction-based paradigm for framework electronics, in which adsorption selectivity and electronic functionality are covalently codesigned.","PeriodicalId":24,"journal":{"name":"ACS Sensors","volume":" ","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149072850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Lysine-Assisted Oxygen-Vacancy Engineering of In2O3/TiO2 Nanotube Heterostructures for Room-Temperature Triethylamine Sensing. 赖氨酸辅助In2O3/TiO2纳米管异质结构的氧空位工程用于室温三乙胺传感。

IF 10.9 1区化学

ACS Sensors Pub Date : 2026-09-28 DOI: 10.1021/acssensors.6c02166

Yahui Cai, Yang Du, Yue Zhang, Wenwen Zhang, Pei Song, Yan-Yan Song, Zhida Gao

{"title":"Lysine-Assisted Oxygen-Vacancy Engineering of In2O3/TiO2 Nanotube Heterostructures for Room-Temperature Triethylamine Sensing.","authors":"Yahui Cai, Yang Du, Yue Zhang, Wenwen Zhang, Pei Song, Yan-Yan Song, Zhida Gao","doi":"10.1021/acssensors.6c02166","DOIUrl":"https://doi.org/10.1021/acssensors.6c02166","url":null,"abstract":"Triethylamine (TEA), a representative volatile amine generated during seafood spoilage, is an important indicator for freshness evaluation and food-safety monitoring. However, most chemiresistive TEA sensors still rely on elevated operating temperatures, which limits their practical use in on-site analysis. Here, a room-temperature TEA sensing strategy is reported based on lysine-assisted defect engineering of an In2O3/TiO2 heterostructure grown on TiO2 nanotube arrays. By introducing lysine during the growth of an indium metal-organic framework precursor, the thermal conversion behavior of the precursor is modified, facilitating the formation of oxygen-vacancy (OV)-rich In2O3 while preserving the nanotube architecture. The resulting OV-In2O3/TiO2 heterostructure combines defect-activated surface chemistry with heterointerface-induced band bending and depletion-layer modulation, thereby promoting TEA adsorption/activation and accelerating interfacial charge transfer at room temperature. The resulting sensor shows a response of 2.23 toward 10 ppm TEA, fast response/recovery times of 27/50 s, and a detection limit of 37 ppb, together with good selectivity, reproducibility, and stability. A flexible TiO2NTs/Ti-based device further enables real-time monitoring of turbot spoilage, demonstrating its potential for nondestructive seafood freshness evaluation.","PeriodicalId":24,"journal":{"name":"ACS Sensors","volume":" ","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149068633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Composition-Tuned Pt-Based Nanobranch Films for Selective, Room-Temperature Gas Detection (1 ppb-100 ppm). 用于选择性室温气体检测（1 ppb-100 ppm）的成分调谐pt基纳米分支薄膜。

IF 10.9 1区化学

ACS Sensors Pub Date : 2026-09-28 DOI: 10.1021/acssensors.6c02042

Maryam Barzegar, Trieu Nguyen, Juergen Jung, Gugang Chen, Shutang Chen

{"title":"Composition-Tuned Pt-Based Nanobranch Films for Selective, Room-Temperature Gas Detection (1 ppb-100 ppm).","authors":"Maryam Barzegar, Trieu Nguyen, Juergen Jung, Gugang Chen, Shutang Chen","doi":"10.1021/acssensors.6c02042","DOIUrl":"https://doi.org/10.1021/acssensors.6c02042","url":null,"abstract":"Chemiresistive gas sensors are broadly cross-sensitive, limiting quantitative use in complex mixtures. We address this challenge through materials-and-array co-design: a 480-node library of composition-tuned, dendritic Pt-based nanoparticles (Pt, Pt-Ni, Pt-Ag, Pt-Pd, Pt-Cu, and Pt-Au) was challenged with twelve medically and environmentally relevant gases at 25 °C-namely isoprene, methanol, ethanol, acetone, ammonia, formaldehyde, NO, CO, CO2, H2, CH4, and C3H8-across 1 ppb to 100 ppm. Distinct composition-dependent response fingerprints emerged: Pt-Ni produced the largest formaldehyde response observed here (approximately 2.1% at 100 ppm), whereas Pt-Pd showed the strongest preference for NO (approximately 2.9% at 50 ppm). The films formed homogeneous, percolated networks that delivered reproducible signals, with device-to-device RSD < 4.2% across 480 sensors and >90% response retention over one month at room temperature. These results establish a practical route to heater-free gas sensing through bimetallic composition and array-level response profiling, while identifying humidity validation and multivariate classification as important next steps toward practical breath and environmental applications.","PeriodicalId":24,"journal":{"name":"ACS Sensors","volume":" ","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149072813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thermally Stable Hydrogel Optical Fibers Enable Soft Plasmonic Interfaces for Wearable and Implantable Monitoring. 热稳定的水凝胶光纤为可穿戴和植入式监测提供软等离子体接口。

IF 10.9 1区化学

ACS Sensors Pub Date : 2026-09-28 DOI: 10.1021/acssensors.6c02927

Chunbiao Liu, Zhihai Liu, Yu Zhang, He Zhang, Jiaxing Gao, Mengyao Zhang, Wei Jin, Tongshuo Zhang, Xuhao Ji, Wenxuan Gu, Libo Yuan, Lei Gao

{"title":"Thermally Stable Hydrogel Optical Fibers Enable Soft Plasmonic Interfaces for Wearable and Implantable Monitoring.","authors":"Chunbiao Liu, Zhihai Liu, Yu Zhang, He Zhang, Jiaxing Gao, Mengyao Zhang, Wei Jin, Tongshuo Zhang, Xuhao Ji, Wenxuan Gu, Libo Yuan, Lei Gao","doi":"10.1021/acssensors.6c02927","DOIUrl":"https://doi.org/10.1021/acssensors.6c02927","url":null,"abstract":"Hydrogel optical fibers (HOFs) offer soft, transparent, and biocompatible fiber platforms for biointegrated photonics, yet their practical use in wearable and implantable sensing is limited by thermally induced dehydration, shrinkage, refractive index drift, and optical loss. Here, we report a thermally stable HOF that couples hydrogen bond reinforcement with water-state regulation to stabilize both the hydrogel matrix and the fiber photonic interface. Polyacrylamide-based hydrogel fibers are fabricated by drawing-spinning, followed by thermal treatment, during which drawing-induced chain orientation, free-water evaporation, and glycerol-mediated hydrogen bonding generate dense hydrogen-bonded nanoclusters and a stable bound water. The resulting fibers exhibit smooth cylindrical morphology, a step-index-like refractive index profile, low optical attenuation of 0.136 ± 0.004 dB/cm, high flexibility, and stable light guiding from -10 to 80 °C. Benefiting from the thermally stable and metallizable hydrogel surface, a nanoscale gold film is integrated onto the fiber to construct a soft HOF surface plasmon resonance interface. The HOFs enable wearable skin temperature warning and implantable in vivo body temperature monitoring in mice. This work establishes a material-interface-device strategy for thermally robust hydrogel fiber photonics and expands HOFs from passive soft waveguides toward active plasmonic sensing platforms for wearable and implantable physiological monitoring.","PeriodicalId":24,"journal":{"name":"ACS Sensors","volume":" ","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149072794","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Functionalized WS2 Electronic Nose for Volatile Organic Compound Mixture Recognition via Chemically Informed Transformer Learning. 基于化学信息变压器学习的WS2功能化电子鼻挥发性有机化合物混合物识别

IF 10.9 1区化学

ACS Sensors Pub Date : 2026-09-28 DOI: 10.1021/acssensors.6c02768

Snehraj Gaur, Sagnik Jana, Santanu Chaudhury, Ritu Gupta

{"title":"Functionalized WS2 Electronic Nose for Volatile Organic Compound Mixture Recognition via Chemically Informed Transformer Learning.","authors":"Snehraj Gaur, Sagnik Jana, Santanu Chaudhury, Ritu Gupta","doi":"10.1021/acssensors.6c02768","DOIUrl":"https://doi.org/10.1021/acssensors.6c02768","url":null,"abstract":"Accurate detection and discrimination of volatile organic compounds (VOCs) in complex environments using chemiresistive sensors remains a major challenge, mainly due to overlapping responses (cross-sensitivity) and environmental interferences. In this study, we have developed a sensor array based on defect-engineered, tungsten disulfide (WS2) nanosheets chemically functionalized with organic ligands for the detection of oxygenated VOCs. Each sensor of the array exhibits a distinct response to methanol, propanol, butanone, and formaldehyde, based on surface group-molecular interaction strength. The best performance was obtained with WS2-T for propanol, with a sensitivity of 8.8% ppm-1, a detection limit of 99.8 ppt (lowest experimentally verified limit of 5 ppb), and rapid response/recovery times of 81.5 and 58 s at 40% RH and 25 °C. The classification of individual VOCs, binary mixtures, and varying humidity was performed using supervised machine learning models. Beyond controlled analytes, a chemically informed transformer-based deep learning model (motivated by Vision Video Transformer-CIVVT) incorporating molecular fingerprints and functional group embeddings was used for direct spatiotemporal analysis of sensor signals for accurately identifying fruit odors (banana, apple, kiwi, guava, and tomato), highlighting the capability of the e-nose system for real-world applications. The demonstrated capability for fruit odor recognition and ripeness monitoring establishes its potential for next-generation food-quality monitoring to improve storage strategies.","PeriodicalId":24,"journal":{"name":"ACS Sensors","volume":" ","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149072840","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

BRET-Based Mitochondrial Subcompartment Localization Biosensors Reveal the Impact of Pesticides and Food Additives on Mitochondrial Protein Localization. 基于bret的线粒体亚室定位生物传感器揭示农药和食品添加剂对线粒体蛋白定位的影响

IF 10.9 1区化学

ACS Sensors Pub Date : 2026-09-27 DOI: 10.1021/acssensors.6c01115

Abdulrasheed O Abdulrahman, Mathias Lescuyer, Rami El Zein, Rim Debbiche, Erika Cecon, Julie Dam, Bernard Masri, Ralf Jockers

{"title":"BRET-Based Mitochondrial Subcompartment Localization Biosensors Reveal the Impact of Pesticides and Food Additives on Mitochondrial Protein Localization.","authors":"Abdulrasheed O Abdulrahman, Mathias Lescuyer, Rami El Zein, Rim Debbiche, Erika Cecon, Julie Dam, Bernard Masri, Ralf Jockers","doi":"10.1021/acssensors.6c01115","DOIUrl":"https://doi.org/10.1021/acssensors.6c01115","url":null,"abstract":"The last decade has witnessed a marked increase in interest in mitochondria, whose dysfunction leads to the development of multiple diseases. Mitochondria are unique as they are highly compartmentalized organelles that are composed of two closely apposed membranes. Here, we developed a series of bioluminescence resonance energy transfer (BRET)-based localization sensors that accurately report the localization and orientation of mitochondrial proteins (TOM20, TOM22, VDAC1, MICU1, ATP5F1C, OTC, and SIRT3) within their respective mitochondrial compartments. These biosensors also dynamically detect stressor-induced translocation of cytosolic proteins, such as Drp1 and BAX, to mitochondria. Screening of a series of endocrine disruptors with our BRET sensors uncovered deleterious effects of paraquat, di-tert-butyl-4-methylphenol, and 4-hydroxynonenal on mitochondrial protein localization. Altogether, the localization sensors provide noninvasive tools to monitor mitochondrial protein localization in a time-resolved manner, with nanometer-scale resolution, in intact cells exposed to diverse cellular stressors.","PeriodicalId":24,"journal":{"name":"ACS Sensors","volume":" ","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149068662","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Phase-Programmed Charge Routing Governs Kinetic and Thermodynamic Molecular Selectivity for Chemiresistive Sensors 相程序电荷路径控制化学电阻传感器的动力学和热力学分子选择性

IF 8.9 1区化学

ACS Sensors Pub Date : 2026-09-26 DOI: 10.1021/acssensors.6c03122

Sukhwinder Singh,Wansik Oum,Shen Yuxiang,Ka Yoon Shin,Ryo Toyoshima,Ken Uchida,Sang Sub Kim,Hyoun Woo Kim

{"title":"Phase-Programmed Charge Routing Governs Kinetic and Thermodynamic Molecular Selectivity for Chemiresistive Sensors","authors":"Sukhwinder Singh,Wansik Oum,Shen Yuxiang,Ka Yoon Shin,Ryo Toyoshima,Ken Uchida,Sang Sub Kim,Hyoun Woo Kim","doi":"10.1021/acssensors.6c03122","DOIUrl":"https://doi.org/10.1021/acssensors.6c03122","url":null,"abstract":"Abstract Controlling molecular selectivity in chemiresistive gas sensors remains a fundamental challenge, particularly for chemically analogous analytes that generate indistinguishable electronic responses. Here, we demonstrate that polymorph-engineered MoS2/SnO2 heterointerfaces establish a programmable molecular recognition platform for selective volatile amine detection. By tuning the 1T/2H phase distribution within MoS2/SnO2 nanorod heterostructures, distinct sensing pathways emerge for chemically similar molecules. Specifically, 1T-enriched heterostructures preferentially detect ammonia (NH3), whereas 2H-dominated architectures selectively respond to triethylamine (TEA). Neural Network Potential Molecular Dynamics (NNP-MD) simulations reveal that this selectivity originates from phase-dependent charge routing at the heterointerface, which governs the coupling between molecular rotational dynamics, surface reaction kinetics, and adsorption thermodynamics. Spectroscopic and gas-phase analyses indicate that 1T-rich interfaces promote kinetically driven catalytic activation of NH3, generating reactive intermediates that transiently oxidize Mo centers. In contrast, 2H-dominated interfaces favor thermodynamically stabilized dipole-mediated adsorption of TEA, producing a distinct electronic response with minimal surface oxidation. The optimized sensors achieve sub–parts-per-billion detection limits (0.5 ppb for NH3 and 0.6 ppb for TEA) and maintain stable operation under high humidity. Practical applicability is demonstrated through real-time monitoring of volatile amine emissions during pomfret fish spoilage under ambient storage. This work introduces a new paradigm in phase-engineered heterointerfaces as a generalizable materials-design strategy for programming intrinsic kinetic and thermodynamic selectivity for next-generation chemical sensors.","PeriodicalId":24,"journal":{"name":"ACS Sensors","volume":"9 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2026-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149049854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fingerprint-Mimetic Fibrous Glove via Shear-Induced Alignment and Dynamic Compensation for Multimodal Tactile Sensing 基于剪切诱导对准和动态补偿的多模态触觉感应仿指纹纤维手套

IF 8.9 1区化学

ACS Sensors Pub Date : 2026-09-26 DOI: 10.1021/acssensors.6c02671

Zhixuan Liu,Yujun Xu,Jiayan Song,Zhefei Li,Miao Su,Han Li

{"title":"Fingerprint-Mimetic Fibrous Glove via Shear-Induced Alignment and Dynamic Compensation for Multimodal Tactile Sensing","authors":"Zhixuan Liu,Yujun Xu,Jiayan Song,Zhefei Li,Miao Su,Han Li","doi":"10.1021/acssensors.6c02671","DOIUrl":"https://doi.org/10.1021/acssensors.6c02671","url":null,"abstract":"Abstract Flexible devices are key for human–machine interaction in smart homes and virtual reality. However, existing wearable devices are limited by single-mode sensing, irreversible conductive network damage under deformation, and a lack of tactile enhancement, hindering high sensitivity and multimodal perception. Herein, inspired by the arc-shaped topology of human fingerprints, we propose a fiber-based multimodal tactile smart glove (silver/ionic liquid/TPU glove, named SIT Glove). Using Jeffery orbit dynamics, shear flow during wet-spinning aligned silver nanoflakes (AgNFs) axially, while an ionic liquid served as a dynamic conductive compensation medium, yielding SIT fibers with an “electronic network + ionic polarization” synergy. The fibers exhibit excellent strain, pressure, and temperature sensing properties: conductivity 1.66 × 104 S/m, elongation at break 387.96%, gauge factor 9826.244 (80–100% strain), pressure sensitivity 4.4340 kPa–1 (50–60 kPa), and TCR –0.0453 °C–1 (30–40 °C). Meanwhile, embroidering SIT fibers onto glove fingertips in fingerprint patterns created an 18-channel tactile array. Furthermore, with machine learning for gesture recognition and deep learning (1D-CNN) for fabric classification, the glove achieved 93.98% accuracy for 6 gestures and 86.84% for 4 fabrics and demonstrated body temperature monitoring, hot/cold sensing, virtual game interaction, and fan control. This work offers a bioinspired paradigm for wearable devices with high sensitivity, a wide response range, and multifunctional integration.","PeriodicalId":24,"journal":{"name":"ACS Sensors","volume":"32 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2026-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149049856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0