Sensors and Actuators A-physical最新文献_第10页

Highly sensitive and dual-selective gas sensing using WS2 nanosheets for NO2 and NH3 detection at low temperature 利用WS2纳米片在低温下进行NO2和NH3的高灵敏度和双选择性气敏检测

IF 4.9 3区工程技术

Sensors and Actuators A-physical Pub Date : 2026-03-01 Epub Date: 2026-01-07 DOI: 10.1016/j.sna.2026.117464

Ho Huu Hau , Nguyen Viet Nhat , Luong Thi Theu , Phung Thi Viet Bac , Dinh Van An , Pham Van Thang , Hoang Si Hong , Nguyen Xuan Thai , Nguyen Duc Chien , Nguyen Van Duy , Nguyen Duc Hoa , Chu Manh Hung

{"title":"Highly sensitive and dual-selective gas sensing using WS2 nanosheets for NO2 and NH3 detection at low temperature","authors":"Ho Huu Hau , Nguyen Viet Nhat , Luong Thi Theu , Phung Thi Viet Bac , Dinh Van An , Pham Van Thang , Hoang Si Hong , Nguyen Xuan Thai , Nguyen Duc Chien , Nguyen Van Duy , Nguyen Duc Hoa , Chu Manh Hung","doi":"10.1016/j.sna.2026.117464","DOIUrl":"10.1016/j.sna.2026.117464","url":null,"abstract":"<div><div>For the first time, we report a dual-functional gas sensor based on highly sensitive WS<sub>2</sub> nanosheets. The WS<sub>2</sub> nanosheets were synthesized through a simple and environmentally friendly liquid-phase exfoliation (LPE) process using a water–ethanol solvent. The exfoliated nanosheets were 2–3 layers thick and exhibited p-type semiconducting behavior. The fabricated sensor showed excellent selectivity toward NO<sub>2</sub> at room temperature (RT, 25 °C) and NH<sub>3</sub> at 50 °C, with high responses of about 10 and 12–5 ppm NO<sub>2</sub> and 500 ppm NH<sub>3</sub>, respectively. In addition, the sensor demonstrated outstanding short- and long-term stability, along with ultra-low detection limits of 4.7 ppb for NO<sub>2</sub> and 253.4 ppb for NH<sub>3</sub>. These features are crucial for practical device applications. Density functional theory (DFT) calculations further revealed strong adsorption energy, charge transfer, and electronic structure modulation of WS<sub>2</sub> upon exposure to NO<sub>2</sub> and NH<sub>3</sub>. Overall, these findings demonstrate that few-layer WS<sub>2</sub> nanosheets are highly promising for developing low-power, dual-selective, and scalable gas sensors for low-temperature applications.</div></div>","PeriodicalId":21689,"journal":{"name":"Sensors and Actuators A-physical","volume":"399 ","pages":"Article 117464"},"PeriodicalIF":4.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145926190","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

1T1M neuromorphic infrared perception based on PbS-QDs decorated IGZO TFT and NbOx Mott Memristor with event-driven property 基于事件驱动特性的pbsqds修饰IGZO TFT和NbOx Mott忆阻器的1T1M神经形态红外感知

IF 4.9 3区工程技术

Sensors and Actuators A-physical Pub Date : 2026-03-01 Epub Date: 2025-12-09 DOI: 10.1016/j.sna.2025.117378

Yubin Yuan , Shujing Zhao , Qiang Wu , Zifan Li , Chuanyu Han , Xin Li , Long Hu , Mingchao Yang , Weihua Liu , Li Geng

{"title":"1T1M neuromorphic infrared perception based on PbS-QDs decorated IGZO TFT and NbOx Mott Memristor with event-driven property","authors":"Yubin Yuan , Shujing Zhao , Qiang Wu , Zifan Li , Chuanyu Han , Xin Li , Long Hu , Mingchao Yang , Weihua Liu , Li Geng","doi":"10.1016/j.sna.2025.117378","DOIUrl":"10.1016/j.sna.2025.117378","url":null,"abstract":"<div><div>Biological perception systems are renowned for their ability to process environmental stimuli with remarkable energy efficiency, primarily through spike-based communication and event-driven mechanisms. Inspired by these, in this paper, we propose an infrared artificial neuromorphic perception neuron (IR-ANPN) designed to detect infrared (IR) light, enabling sensory perception beyond the visible spectrum. The IR-ANPN is designed based on a one-transistor-one-memristor (1T1M) architecture, which consists of a PbS quantum dots-decorated Indium Gallium Zinc Oxide (IGZO) thin film transistor (PbS-QDs/IGZO TFT) and an NbO<sub>x</sub> Mott memristor. The PbS-QDs/IGZO TFT is responsible for detecting infrared light stimuli, while the NbO<sub>x</sub> Mott memristor converts these stimuli into neuromorphic spikes. The IR-ANPN can operate in an event-driven mode, which means it transmits spikes only when exposed to IR light, ensuring energy efficiency by remaining dormant in the absence of relevant stimuli. The paper also showcases the potential of the IR-ANPN by constructing a neuromorphic infrared detection array. Combined with a spiking neural network (SNN), the system achieves 92 % recognition accuracy on the MNIST dataset by encoding pixel intensity as spiking frequency. The IR-ANPN architecture enhances sensory capabilities through a neuromorphic approach, enabling the detection of non-visible wavelengths with remarkable energy efficiency and laying the foundation for future intelligent sensing technologies.</div></div>","PeriodicalId":21689,"journal":{"name":"Sensors and Actuators A-physical","volume":"399 ","pages":"Article 117378"},"PeriodicalIF":4.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145712271","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on the response mechanism and performance of packaged TENG sensors under multimodal dynamic loads 封装式TENG传感器在多模态动载荷作用下的响应机理及性能研究

IF 4.9 3区工程技术

Sensors and Actuators A-physical Pub Date : 2026-03-01 Epub Date: 2025-12-25 DOI: 10.1016/j.sna.2025.117431

Jiayi Su , Cunao Feng , Yuxia Wang, Yu Guo, Xinyue Zhang, Kai Chen, Xiaowei Li, Dekun Zhang

{"title":"Study on the response mechanism and performance of packaged TENG sensors under multimodal dynamic loads","authors":"Jiayi Su , Cunao Feng , Yuxia Wang, Yu Guo, Xinyue Zhang, Kai Chen, Xiaowei Li, Dekun Zhang","doi":"10.1016/j.sna.2025.117431","DOIUrl":"10.1016/j.sna.2025.117431","url":null,"abstract":"<div><div>Traditional TENG (Triboelectric Nanogenerator) research has primarily focused on static loads, limiting their applicability of multimodal composite dynamic loads in practical operating conditions. Therefore, this study centers on the performance and response mechanisms of encapsulated TENGs under multimodal dynamic loads, optimizing TENG structure and performance by using Fe₃O₄-doped MWCNTs-PDMS as the friction layer and encapsulation material. The fabricated TENG demonstrates outstanding performance under both static and dynamic loads, with its output voltage exhibiting a strong linear relationship with both frequency and load. A linear fit accuracy (R²) of up to 98.18 % was achieved under specific conditions. The study indicates that the displacement of the encapsulated TENG correlates well with voltage, with normal signal transmission, and exhibits excellent environmental adaptability, sensitivity, and durability, offering broad application prospects in industrial monitoring and intelligent systems. The TENG device developed in this study shows great potential as a core sensing unit for predictive maintenance systems in engineering applications involving vibrational environments. It is expected to advance fields such as intelligent monitoring and human-machine interaction toward higher sensitivity and broader detection ranges.</div></div>","PeriodicalId":21689,"journal":{"name":"Sensors and Actuators A-physical","volume":"399 ","pages":"Article 117431"},"PeriodicalIF":4.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145841237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Single band ratiometric luminescence thermometry based on Eu3+-doped KY3F10 and RbY2F7 nanoparticles 基于Eu3+掺杂KY3F10和RbY2F7纳米颗粒的单波段比例发光测温

IF 4.9 3区工程技术

Sensors and Actuators A-physical Pub Date : 2026-03-01 Epub Date: 2025-12-22 DOI: 10.1016/j.sna.2025.117417

Mikhail A. Kurochkin , Kirill S. Prichisly , Nikita A. Bogachev , Andrey S. Mereshchenko , Ilya E. Kolesnikov

{"title":"Single band ratiometric luminescence thermometry based on Eu3+-doped KY3F10 and RbY2F7 nanoparticles","authors":"Mikhail A. Kurochkin , Kirill S. Prichisly , Nikita A. Bogachev , Andrey S. Mereshchenko , Ilya E. Kolesnikov","doi":"10.1016/j.sna.2025.117417","DOIUrl":"10.1016/j.sna.2025.117417","url":null,"abstract":"<div><div>Luminescence thermometry has been widely recognized as one of the most promising techniques for remote temperature sensing, particularly in scenarios where traditional contact methods are impractical. Currently, many scientific groups are searching for novel materials and approaches to improve the performance of the proposed luminescence thermometers. Here, Eu<sup>3+</sup>-doped fluoride nanoparticles, namely KY<sub>3</sub>F<sub>10</sub> and RbY<sub>2</sub>F<sub>7</sub>, have been successfully used for temperature sensing based on the single band ratiometric method. The chosen approach can be realized with simpler equipment compared to the widely spread standard ratiometric method based on two emission lines, which is crucial for real application. The results obtained show that both Eu<sup>3+</sup>-doped sensors provide a reliable temperature sensing over a wide thermal range of 298–873 K. The best relative thermal sensitivity was found to be 1.48 % K<sup>−1</sup>@298 K (KY<sub>3</sub>F<sub>10</sub>:Eu<sup>3+</sup>), while the temperature resolution was 1.27 K (RbY<sub>2</sub>F<sub>7</sub>:Eu<sup>3+</sup>).</div></div>","PeriodicalId":21689,"journal":{"name":"Sensors and Actuators A-physical","volume":"399 ","pages":"Article 117417"},"PeriodicalIF":4.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145841294","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Characterization of the superposition of mixed signals of polymetallic particles 多金属粒子混合信号叠加的表征

IF 4.9 3区工程技术

Sensors and Actuators A-physical Pub Date : 2026-03-01 Epub Date: 2026-01-13 DOI: 10.1016/j.sna.2026.117474

Chenyong Wang, Zhongyang Cai, Chenzhao Bai, Shukui Hu, Xiangming Kan, Xurui Zhang, Riwei Wang, Hongpeng Zhang

{"title":"Characterization of the superposition of mixed signals of polymetallic particles","authors":"Chenyong Wang, Zhongyang Cai, Chenzhao Bai, Shukui Hu, Xiangming Kan, Xurui Zhang, Riwei Wang, Hongpeng Zhang","doi":"10.1016/j.sna.2026.117474","DOIUrl":"10.1016/j.sna.2026.117474","url":null,"abstract":"<div><div>When the abrasive particles gather in the oil and pass through the sensor, the mixed abrasive particles will cause false alarms and missed alarms of the monitoring equipment. To enhance the precision of detecting abrasive particles, an analysis was conducted on the impact of various mixtures of iron and copper particles on the detection signal. The results show that the magnetization coupling between ferromagnetic particles and eddy current coupling between non-ferromagnetic particles significantly affect the detection signal. The closer the particle aggregation shape is to the spherical shape, the more significant the eddy current effect is and the weaker the magnetic induction strength is. The study proposes a multi-metal particle differentiation and identification method based on the amplitude of the inductive-resistive signal, which can accurately differentiate 75 % of the particle combinations, and the remaining 25 % can be differentiated by the change rule of the signal curve, providing theoretical and experimental support for improving the accuracy of multi-metal particle detection in oil fluids.</div></div>","PeriodicalId":21689,"journal":{"name":"Sensors and Actuators A-physical","volume":"399 ","pages":"Article 117474"},"PeriodicalIF":4.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145977858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design and characterization of locally-reinforced-kirigami electrostatic actuators 局部增强基利伽米静电致动器的设计与表征

IF 4.9 3区工程技术

Sensors and Actuators A-physical Pub Date : 2026-03-01 Epub Date: 2025-12-23 DOI: 10.1016/j.sna.2025.117424

Chuang Wu, Xing Gao, Chongjing Cao

{"title":"Design and characterization of locally-reinforced-kirigami electrostatic actuators","authors":"Chuang Wu, Xing Gao, Chongjing Cao","doi":"10.1016/j.sna.2025.117424","DOIUrl":"10.1016/j.sna.2025.117424","url":null,"abstract":"<div><div>Electrostatic (ES) actuators utilize voltage-induced ES forces to exert large-stroke motions or strong anchors. However, existing ES actuators often suffer from a low peel strength, which may cause undesired delamination of the electrostatically adhered layers during actuation under even mild perturbations, potentially leading to catastrophic damage to the actuators. Based on the widely adopted liquid-amplified ES actuators, this paper introduces a novel locally-reinforced-kirigami electrode design to greatly enhance the peel strengths of the locally-reinforced-kirigami electrostatic (LRK-ES) actuators by up to 30-fold. By utilizing a simplified peeling model, we reveal that the ES force enhanced wet adhesion mechanism, or the Stefan adhesion force in specific, is the primary contributor to the greatly improved peel strength of the proposed actuators. To showcase the potential applications of the LRK-ES actuators, two distinct operating modes are developed and compared against their conventional counterparts. An LRK-ES actuated soft gripper is also demonstrated in this work to exhibit a maximum gripping force 20-fold larger than its counterpart driven by the conventional ES actuators. The novel electrode design and key findings reported in this paper may offer guidelines for designing high-performance and robust electrostatically driven soft robotic systems.</div></div>","PeriodicalId":21689,"journal":{"name":"Sensors and Actuators A-physical","volume":"399 ","pages":"Article 117424"},"PeriodicalIF":4.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145884829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Stencil-patterned AuNPs@PMMA spherical-cavity substrates for ultrasensitive SERS detection 用于超灵敏SERS检测的模板图案AuNPs@PMMA球腔衬底

IF 4.9 3区工程技术

Sensors and Actuators A-physical Pub Date : 2026-03-01 Epub Date: 2025-12-09 DOI: 10.1016/j.sna.2025.117384

Jun Dong , Xinyue Li , Shaolong Tu , Qingyan Han , Chengyun Zhang , Kaili Ren , Tuo Li , Wei Gao , Jianxia Qi

{"title":"Stencil-patterned AuNPs@PMMA spherical-cavity substrates for ultrasensitive SERS detection","authors":"Jun Dong , Xinyue Li , Shaolong Tu , Qingyan Han , Chengyun Zhang , Kaili Ren , Tuo Li , Wei Gao , Jianxia Qi","doi":"10.1016/j.sna.2025.117384","DOIUrl":"10.1016/j.sna.2025.117384","url":null,"abstract":"<div><div>Surface-enhanced Raman scattering (SERS) was extensively employed in the domains of target analysis and detection owing to its benefits of high sensitivity and nondestructive detection. In this study, polystyrene (PS) microspheres served as templates. PS microspheres were systematically assembled on silicon wafer surfaces using air-liquid interfacial self-assembly. Subsequently, a PMMA-anisole solution was spin-coated to fill the interstices of the microspheres. Following the removal of the templates using cyclohexane ultrasonication method, gold nanoparticles were deposited onto the substrates utilizing the three-phase self-assembly procedure to construct the AuNPs@PMMA sphere-cavity array substrate. When the PMMA-anisole solution concentration was 1 %, the spinning speed was 5500 r/min, and the annealing temperature was 120 °C, the most regular nanostructure of the spherical cavity substrate was achieved. The Raman activity of the fabricated substrates was investigated with the selection of Rhodamine (R6G), Crystal Violet (CV) and Aspartame (APM) as target molecules. The experimental results indicated that AuNPs@PMMA sphere-cavity array substrate exhibiting high sensitivity, excellent uniformity, and stability, and the detection limits for R6G and CV were 10<sup>−11</sup> M and 10<sup>−10</sup> M, respectively. In addition, the substrate achieved a low detection limit of 0.0313 g/L for aspartame (APM), demonstrating the potential application of the substrate in food safety testing.</div></div>","PeriodicalId":21689,"journal":{"name":"Sensors and Actuators A-physical","volume":"399 ","pages":"Article 117384"},"PeriodicalIF":4.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145791581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design and analysis of micro-scale ultrasonic transducers with active-backing structures 微尺度主动背衬结构超声换能器的设计与分析

IF 4.9 3区工程技术

Sensors and Actuators A-physical Pub Date : 2026-03-01 Epub Date: 2025-12-08 DOI: 10.1016/j.sna.2025.117373

Huanying Kan , Changquan Li , Bin Ju , Xiao Zheng , Wenjie Xue , Chao Tian , Weiwei Shao , Siliang Lu , Yongbin Liu

{"title":"Design and analysis of micro-scale ultrasonic transducers with active-backing structures","authors":"Huanying Kan , Changquan Li , Bin Ju , Xiao Zheng , Wenjie Xue , Chao Tian , Weiwei Shao , Siliang Lu , Yongbin Liu","doi":"10.1016/j.sna.2025.117373","DOIUrl":"10.1016/j.sna.2025.117373","url":null,"abstract":"<div><div>In interventional ultrasound surgery, an ultrasound transducer is delivered to the target area through a slight guide needle to display internal structures in real time. Therefore, minimizing dimensions of the transducer without compromising imaging quality holds substantial research value. To address this challenge, we proposed an active-backing ultrasonic transducer (ABUT) in which the conventional backing layer is replaced by an active backing structure, enabling substantial size reduction. A theory of vibration displacement compensation and a corresponding mathematical model were then proposed to analyze the working principle of ABUT. Subsequently, parameters of the ABUT were optimized. Simulation results showed that, the difference in acoustic pressure levels between the front and rear of the ABUT can reach 12 dB. The acoustic attenuation effect outperformed that of a conventional backing layer. Finally, the acoustic emission and attenuation performance of ABUT were verified through experiments. The experimental results showed that, the acoustic pressure attenuation value per unit thickness of active-backing layer was four times greater than that of conventional backing layer. This result demonstrated that the 0.4-mm-thick active-backing layer exhibits superior acoustic attenuation compared to the 1-mm-thick conventional backing layer, ultimately enabling a 35 % reduction in the thickness of transducer.</div></div>","PeriodicalId":21689,"journal":{"name":"Sensors and Actuators A-physical","volume":"399 ","pages":"Article 117373"},"PeriodicalIF":4.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145712215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A tactile sensing capsule endoscope employing force sensing cantilevers for tumor diagnosis in the GI tract 采用力传感悬臂梁的触觉传感胶囊内窥镜用于胃肠道肿瘤诊断

IF 4.9 3区工程技术

Sensors and Actuators A-physical Pub Date : 2026-03-01 Epub Date: 2025-12-18 DOI: 10.1016/j.sna.2025.117391

Furkan Peker , Ö. Gökalp Akcan , Dila Atak , Ibrahim H. Ozata , Derya S. Uymaz , Emre Balik , Müjdat Zeybel , Hamdi Torun , Onur Ferhanoğlu

{"title":"A tactile sensing capsule endoscope employing force sensing cantilevers for tumor diagnosis in the GI tract","authors":"Furkan Peker , Ö. Gökalp Akcan , Dila Atak , Ibrahim H. Ozata , Derya S. Uymaz , Emre Balik , Müjdat Zeybel , Hamdi Torun , Onur Ferhanoğlu","doi":"10.1016/j.sna.2025.117391","DOIUrl":"10.1016/j.sna.2025.117391","url":null,"abstract":"<div><div>The correlation between tissue elasticity and histopathological diagnosis has brought attention to the development of biomedical devices for <em>in-vivo</em> measurement of tissue biomechanical properties. Towards this aim, we have developed a tactile sensing capsule endoscope to measure tissue Young’s modulus, in situ. Inspired by force microscopy, the capsule comprises four cantilevers that probe the walls of the GI tract using a single miniaturized actuator. The force exerted on the cantilever tip by the tissue is measured using the piezoelectric layer integrated on the cantilevers. The tactile-based modulus sensing capsule was initially tested on <em>ex-vivo</em> animal tissue, followed by healthy and cancerous human specimens. The results clearly delineate the differences in mechanical properties, with a Young’s modulus of 11.3 <span><math><mo>±</mo></math></span> 2.3 kPa for healthy and 26.8 <span><math><mo>±</mo></math></span> 4.6 kPa for cancerous tissue. Overall, in the realm of tactile-based modulus sensing of tissues, our technology uniquely combines localized, quantitative Young’s modulus measurements with the capability to perform multiple measurements throughout the GI tract wall in a single procedure. Moreover, the developed sensor has a compact form factor, in accordance with the capsule dimensions, and simple manufacturing steps using stereolithography. With further improvements, the developed medical device can be utilized as a non-invasive diagnostic tool in the clinic.</div></div>","PeriodicalId":21689,"journal":{"name":"Sensors and Actuators A-physical","volume":"399 ","pages":"Article 117391"},"PeriodicalIF":4.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145841343","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A flexible modular neural interface for investigating functional connectivity between deep brain structures and the cerebral cortex 一个灵活的模块化神经接口，用于研究脑深部结构和大脑皮层之间的功能连接

IF 4.9 3区工程技术

Sensors and Actuators A-physical Pub Date : 2026-03-01 Epub Date: 2026-01-08 DOI: 10.1016/j.sna.2026.117470

Sehwan Park , Seungjun Lee , Haeyun Lee , Minseok Kim , Jimin Lee , Namsun Chou , Hyogeun Shin

{"title":"A flexible modular neural interface for investigating functional connectivity between deep brain structures and the cerebral cortex","authors":"Sehwan Park , Seungjun Lee , Haeyun Lee , Minseok Kim , Jimin Lee , Namsun Chou , Hyogeun Shin","doi":"10.1016/j.sna.2026.117470","DOIUrl":"10.1016/j.sna.2026.117470","url":null,"abstract":"<div><div>Understanding the connectivity between deep brain structures and the cerebral cortex is crucial for unraveling complex brain functions. However, existing neural interfaces are mostly limited to studying connections within either deep brain regions or the cortex. Herein, we present a flexible modular neural interface in which multiple modules comprising a flexible neural probe, an optical fiber, and a micro-needle for drug delivery can be integrated. This enables precise stimulation of various deep brain regions and simultaneous cortical signal measurements in response to various stimuli. The system enables the flexible positioning of modules at different depths, thereby supporting EEG signal recording and providing versatile targeting and modulation of neural circuits. The interface facilitates detailed investigations into functional connectivity by enabling localized stimulation while capturing neural activity from both deep brain structures and cortical areas. The results of validation experiments indicate that the system effectively induced epileptic-like signals in the cortex of anesthetized mice through deep brain stimulation and enabled measurement thereof. In addition, localized intracerebral drug delivery produces clear modulation of cortical EEG signals, demonstrating effective multimodal integration under physiological conditions. This adaptable modular design offers significant potential for expanding research into neural mechanisms and probing interactions between deep brain structures and the cortex with high precision.</div></div>","PeriodicalId":21689,"journal":{"name":"Sensors and Actuators A-physical","volume":"399 ","pages":"Article 117470"},"PeriodicalIF":4.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145977908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0