Advanced Sensor Research最新文献_第10页

Development of pH-Sensitive Film for Detection of Implant Infection via Ultrasound Luminescent Chemical Imaging 开发 pH 值敏感薄膜，通过超声发光化学成像检测种植体感染

Advanced Sensor Research Pub Date : 2024-02-23 DOI: 10.1002/adsr.202300182

Gretchen B. Schober, Unaiza Uzair, Morgan Reel, Vigjna Abbaraju, Herbert Behlow, Apparao M. Rao, Sriparna Bhattacharya, Jeffrey N. Anker

{"title":"Development of pH-Sensitive Film for Detection of Implant Infection via Ultrasound Luminescent Chemical Imaging","authors":"Gretchen B. Schober, Unaiza Uzair, Morgan Reel, Vigjna Abbaraju, Herbert Behlow, Apparao M. Rao, Sriparna Bhattacharya, Jeffrey N. Anker","doi":"10.1002/adsr.202300182","DOIUrl":"10.1002/adsr.202300182","url":null,"abstract":"A new hybrid ultrasound luminescent chemical imaging technique is described along with a pH sensor to image chemical concentrations at the surface of implanted medical devices. The purpose is to detect and study local biochemistry during infection. The sensor comprises a mechanoluminescent film (SrAl2O4:Eu, Dy microphosphors embedded in a biocompatible polymer film) and a pH indicator dye. A focused ultrasound beam generates green luminescence at the ultrasound focal point. By pulsing the ultrasound ON and OFF, the modulated luminescence can be distinguished from persistent luminescence, for high spatial resolution imaging. A red fluorescent dye and the pH indicator dye bromothymol blue are added to the coating to modulate the red-light transmittance via pH dependent absorbance. Acidosis is observed as an increase in red luminescence intensity in spectroscopy and imaging. The films are sensitive to biologically relevant changes in pH (6.0–8.0) and can be imaged through optically scattering media to mimic tissue. The images have a knife edge spatial resolution of ≈3 mm through optically scattering phantoms, limited by the focused ultrasound spot size. This novel technique may permit the elucidation of implant infection at the implant surface and can be further developed for the measurement of other relevant chemical species in the future.","PeriodicalId":100037,"journal":{"name":"Advanced Sensor Research","volume":"3 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adsr.202300182","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140437787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Low-Cost and Do-It-Yourself Pressure Sensor Enable Human Motion Detection and Human–Machine Interface Applications 低成本、可自行操作的压力传感器实现了人体运动检测和人机界面应用

Advanced Sensor Research Pub Date : 2024-02-22 DOI: 10.1002/adsr.202300162

Mari Heikkinen, Fevzihan Basarir, Kim Miikki, Yazan Al Haj, Mithila Mohan, Jaana Vapaavuori

引用次数: 0

Recent Progress on Barium Titanate-Based Ferroelectrics for Sensor Applications 用于传感器应用的钛酸钡基铁电材料最新进展

Advanced Sensor Research Pub Date : 2024-02-22 DOI: 10.1002/adsr.202300168

Caozhuang Deng, Yi Zhang, Dan Yang, Haizhong Zhang, Minmin Zhu

引用次数: 0

Light-Up Sensing Citrate Using a Capture-Selected DNA Aptamer 利用捕获选择的 DNA 短链簇发光传感柠檬酸盐

Advanced Sensor Research Pub Date : 2024-02-22 DOI: 10.1002/adsr.202300167

Lide Gu, Yao Zhang, Deli Wang, Juewen Liu

引用次数: 0

Organohydrogel-Based Soft SEMG Electrodes for Algorithm-Assisted Gesture Recognition 用于算法辅助手势识别的有机水凝胶软 SEMG 电极

Advanced Sensor Research Pub Date : 2024-02-22 DOI: 10.1002/adsr.202300164

Yixin Xu, Lianjun Deng, Yuyao Lu, Jianhuan Zhang, Zhouyi Xu, Kaichen Xu, Chentao Zhang

{"title":"Organohydrogel-Based Soft SEMG Electrodes for Algorithm-Assisted Gesture Recognition","authors":"Yixin Xu, Lianjun Deng, Yuyao Lu, Jianhuan Zhang, Zhouyi Xu, Kaichen Xu, Chentao Zhang","doi":"10.1002/adsr.202300164","DOIUrl":"10.1002/adsr.202300164","url":null,"abstract":"Epidermal electronics that can monitor physiological signals such as surface electromyogram (sEMG) signals attract widespread attentions in personalized healthcare, human–machine interfaces (HMI) and virtual/augmented reality (AR/VR). However, conventional electromyographic electrodes suffer from skin discomfort, susceptibility to motion artifact interference, and short service lifetime. Here, an organohydrogel-based sEMG electrode endows with high conductivity, low modulus and long-term stability is developed by doping partially reduced graphene oxide (pRGO) into highly cross-linked organohydrogel network. The as-fabricated polyacrylamide/sodium alginate/tannic acid/partially reduced graphene oxide (PAM/SA/TA/pRGO) organohydrogel possesses farewell conductivity (4.22 S m−1) while preserving tissue-like compliance (Young's modulus ≈32 KPa), excellent stretchability (≈600%), high adhesion as well as superior anti-drying properties. In addition, a stretchable sEMG electrode for long-term reliable service is fabricated via immobilizing the organohydrogel electrodes onto a flexible very high bond (VHB) substrate. As a result, the integrated electrodes show high signal-to-noise ratio (SNR) (35.15 db) comparable to that of the commercial electrodes. Furthermore, with assistance of deep learning, the proposed sEMG electrodes obtain high identification accuracy of 97.11% in distinguishing sophisticated gestures. This system can be further exploited for real-time tele-operations and offers broad prospects in human–machine immersive interactive application.","PeriodicalId":100037,"journal":{"name":"Advanced Sensor Research","volume":"3 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adsr.202300164","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140440707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Stretchable and Tough Conductive Elastic Film for Multifunctional Flexible Strain Gauges 用于多功能柔性应变计的可拉伸强韧导电弹性薄膜

Advanced Sensor Research Pub Date : 2024-02-22 DOI: 10.1002/adsr.202300208

Qirui Wu, Anbang Chen, Yujia Chen, Jiayu Zhang, Songjiu Han, Jianren Huang, Xiaoxiang Yang, Lunhui Guan

{"title":"A Stretchable and Tough Conductive Elastic Film for Multifunctional Flexible Strain Gauges","authors":"Qirui Wu, Anbang Chen, Yujia Chen, Jiayu Zhang, Songjiu Han, Jianren Huang, Xiaoxiang Yang, Lunhui Guan","doi":"10.1002/adsr.202300208","DOIUrl":"10.1002/adsr.202300208","url":null,"abstract":"As an important branch of modern science and technology, flexible sensor combines the functions of traditional sensors with the characteristics of flexible materials to meet the needs of modern electronic devices for lightweight, flexible and wearable characteristics. However, flexible sensors are faced with problems such as poor stability and weak anti-interference ability in extreme environments. Here, a strategy of combining thermoplastic polyurethane and conductive carbon black is adopted to obtain conductive elastic film with good conductivity and excellent mechanical properties (TPU@CB film). TPU@CB film exhibits very good mechanical strength (8 MPa). When TPU@CB film is assembled into a sensor, it exhibits wide detection range (600%), low detection limit (0.05%) and short response time (15 ms). Notably, the TPU@CB film demonstrates clear detection capabilities for both ECG and EMG signals of the human body when utilized as an electrode patch. Thanks to lithography, TPU@CB film is machined into strain gauge shape. TPU@CB strain gauge achieves a high signal-to-noise ratio and can detect a wide range of frequency vibrations from 0 to 900 Hz, as well as accurately detect the speed of the motor. This provides a feasible way to promote the development of flexible electronics.","PeriodicalId":100037,"journal":{"name":"Advanced Sensor Research","volume":"3 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adsr.202300208","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140441492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An Optical Neuromorphic Sensor with High Uniformity and High Linearity for Indoor Visible Light Localization 用于室内可见光定位的高均匀性和高线性度光学神经形态传感器

Advanced Sensor Research Pub Date : 2024-02-18 DOI: 10.1002/adsr.202300197

Shuai Zhong, Jiachao Zhou, Fangwen Yu, Mingkun Xu, Yishu Zhang, Bin Yu, Rong Zhao

{"title":"An Optical Neuromorphic Sensor with High Uniformity and High Linearity for Indoor Visible Light Localization","authors":"Shuai Zhong, Jiachao Zhou, Fangwen Yu, Mingkun Xu, Yishu Zhang, Bin Yu, Rong Zhao","doi":"10.1002/adsr.202300197","DOIUrl":"10.1002/adsr.202300197","url":null,"abstract":"The visible light localization system holds great promise as a highly accurate indoor positioning method. However, it still suffers deficiencies including high latency and power consumption, and large area cost. To address these issues, a high energy efficient spiking localization system inspired by the biological spatial representation system is presented. This system utilizes an optical neuromorphic sensor, consisting of a compact NbOx-based threshold switching memristor and a photoresistor. The key lies in the system's ability to convert analog light information into electrical spikes, resembling the behavior of sensory neurons, which enables the encoding of light illuminance through spiking frequency. Consequently, the system achieves high uniformity, high linearity (≈10%), and high sensitivity (≈1.1 kHz Lux−1 and ≈72.7 kHz cm−1 for light illuminance and distance detection, respectively), indicating its potential suitability for visible light localizations. By leveraging a spiking neural network classifier, the system successfully distinguishes locations with different illuminances. After 150 epochs, it achieves an accuracy of 97%, showcasing the feasibility of using the spiking localization system in real-world applications. The approach of spike-based light positioning is a leap forward toward the development of future compact, highly energy-efficient visible light localization systems.","PeriodicalId":100037,"journal":{"name":"Advanced Sensor Research","volume":"3 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adsr.202300197","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140452731","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Highly Flexible and Sensitive Pressure Sensor: Fabrication of Porous PDMS/Graphene Composite via Laser Thermoforming 高柔性、高灵敏度压力传感器：通过激光热成型制造多孔 PDMS/石墨烯复合材料

Advanced Sensor Research Pub Date : 2024-02-17 DOI: 10.1002/adsr.202300165

Dingyi Guo, Xiao Lei, Haobing Chen, Longju Yi, Yunfan Li, Yilin Zhao, Feng Liu, Gary J. Cheng

{"title":"Highly Flexible and Sensitive Pressure Sensor: Fabrication of Porous PDMS/Graphene Composite via Laser Thermoforming","authors":"Dingyi Guo, Xiao Lei, Haobing Chen, Longju Yi, Yunfan Li, Yilin Zhao, Feng Liu, Gary J. Cheng","doi":"10.1002/adsr.202300165","DOIUrl":"10.1002/adsr.202300165","url":null,"abstract":"Flexible pressure sensors employing porous polymer materials are renowned for their superior sensing capabilities, attributed to the inherently low stiffness of porous polymers. The practical utilization of such sensors hinges on the development of a straightforward, cost-effective, and patternable method for preparing porous polymer materials. In this research, a novel laser thermoforming process is introduced to craft a porous Polydimethylsiloxane (PDMS) film, leveraging carbon black (CB) as an endothermic agent and glucose as a porogen. The resulting porous PDMS film serves as the foundation for a remarkably sensitive flexible piezoresistive sensor. Owing to the inherent flexibility endowed by the porous structure, the porous PDMS-based pressure sensor achieves a remarkable sensitivity of 109.4 kPa−1 within 0–200 Pa, an effective measurement span of 0–100 kPa, rapid response and recovery times of 79 and 55 ms, and impressive stability over 5000 cycles. The sensor's utility extends to applications such as human pulse monitoring, Morse coding, and robot claw sensing, underscoring its promise in the realm of flexible electronics. In summary, the laser thermoforming process realizes the one-step, economical, and patternable preparation of porous polymer materials, and introduces a novel avenue for the realization of high-performance flexible sensors based on thermally cured porous polymers.","PeriodicalId":100037,"journal":{"name":"Advanced Sensor Research","volume":"3 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adsr.202300165","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139959652","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Incorporating Nanoparticles in Porous Foam Templating for Enhanced Sensitivity of Capacitive Pressure Sensors 在多孔泡沫模板中加入纳米颗粒以提高电容式压力传感器的灵敏度

Advanced Sensor Research Pub Date : 2024-02-14 DOI: 10.1002/adsr.202300149

Lekshmi A. Kurup, Joshua N. Arthur, Cameron M. Cole, Sinduja Suresh, Jana Timm, Roland Marschall, Soniya D. Yambem

{"title":"Incorporating Nanoparticles in Porous Foam Templating for Enhanced Sensitivity of Capacitive Pressure Sensors","authors":"Lekshmi A. Kurup, Joshua N. Arthur, Cameron M. Cole, Sinduja Suresh, Jana Timm, Roland Marschall, Soniya D. Yambem","doi":"10.1002/adsr.202300149","DOIUrl":"https://doi.org/10.1002/adsr.202300149","url":null,"abstract":"Capacitive pressure sensors based on porous foams have been demonstrated for various biomedical applications (0–10 kPa). Many different methods for fabricating porous foams have been reported. In this work, for the first time, the incorporation of silica nanoparticles are reported into the templating process of porous foams fabricated through a combination of particle and emulsion templating, in order to enhance the formation of smaller microstructures in polydimethylsiloxane foams. The foams are coated with graphene, and pressure sensors developed using these foams showed increased sensitivity, up to 4.08 kPa−1. The incorporation of nanoparticles also improves the linearity of the sensitivity, giving a linear sensitivity for the pressure sensors over a pressure range of 0–6 kPa. Further, these pressure sensors have a low limit of detection of ≈13 Pa. These results indicate that incorporation of suitable nanoparticles in the templating of foams is a promising strategy for developing foam-based pressure sensors with high and linear sensitivity.","PeriodicalId":100037,"journal":{"name":"Advanced Sensor Research","volume":"3 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adsr.202300149","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140895267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recent Advances in Stretchable and Permeable Electrodes for Epidermal Electronics 用于表皮电子设备的可拉伸和可渗透电极的最新进展

Advanced Sensor Research Pub Date : 2024-02-13 DOI: 10.1002/adsr.202300195

Yanyan Li, Yuping Sun, Qianying Lu, Yanqing Lu, Desheng Kong

{"title":"Recent Advances in Stretchable and Permeable Electrodes for Epidermal Electronics","authors":"Yanyan Li, Yuping Sun, Qianying Lu, Yanqing Lu, Desheng Kong","doi":"10.1002/adsr.202300195","DOIUrl":"10.1002/adsr.202300195","url":null,"abstract":"Epidermal electronics is an emerging wearable platform that involves attaching deformable forms of devices to the skin. Epidermal electrodes represent a vital component of this technology, as they provide a direct electronic interface with the skin for sensing and stimulation. However, most of the current electrodes are built on non-permeable elastomer substrates, which can limit their long-term, continuous operations in a non-invasive manner. Fortunately, recent advancements in conductive materials and fabrication techniques have enabled high-performance epidermal electrodes that are comfortable to wear. In order to track the latest progress, this review article first introduces the designs of permeable structures and the preparation of conductive electrodes. The subsequent discussion elaborates on effective strategies to achieve desirable properties, such as high conductivity, stretchability, skin adhesion, and biocompatibility. The emerging applications of permeable epidermal electrodes are also summarized. Finally, this review concludes with the current challenges and future directions of breathable epidermal electrodes.","PeriodicalId":100037,"journal":{"name":"Advanced Sensor Research","volume":"3 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adsr.202300195","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139841497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0