2021 21st International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers)最新文献_第10页

Characterization of Smart Hydrogel-Based Ultrasound Resonators for Implantable Sensing Applications 用于植入式传感应用的智能水凝胶超声谐振器的表征

2021 21st International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers) Pub Date : 2021-06-20 DOI: 10.1109/Transducers50396.2021.9495729

Navid Farhoudi, P. Kairy, J. Magda, F. Solzbacher, C. Reiche

{"title":"Characterization of Smart Hydrogel-Based Ultrasound Resonators for Implantable Sensing Applications","authors":"Navid Farhoudi, P. Kairy, J. Magda, F. Solzbacher, C. Reiche","doi":"10.1109/Transducers50396.2021.9495729","DOIUrl":"https://doi.org/10.1109/Transducers50396.2021.9495729","url":null,"abstract":"Many biomedical sensing concepts for continuous monitoring of analytes rely on implanting electronic components inside the body to operate, which raises issues about long-term biocompatibility. In recent reports, an implantable sensing modality was reported in which ultrasound absorption in smart hydrogel resonators at a particular probing frequency is used to track the changes in ionic strength and glucose concentration of an analyte solution. This sensing concept allows the implanted component to be free from electronics, with corresponding possible advantages with respect to biocompatibility and lifetime of the device. However, an unsuitable probing frequency can undermine the received signal's quality from the implants or even entirely cause a signal loss. Here we present our work on creating an ultrasound characterization system and using it to determine optimum probing frequencies for the hydrogel resonator structures within a given frequency window. Furthermore, we demonstrate that the signal amplitude depends on the probing frequency's location relative to the frequency response peaks at a fixed dynamic range for swelling of smart hydrogels.","PeriodicalId":6814,"journal":{"name":"2021 21st International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers)","volume":"47 1","pages":"839-842"},"PeriodicalIF":0.0,"publicationDate":"2021-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87018235","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Single-Chip Integration of CMOS Compatible Mems Temperature/Humidity and Highly Sensitive Flow Sensors for Human Thermal Comfort Sensing Application CMOS兼容Mems温度/湿度和高灵敏度流量传感器的单芯片集成，用于人体热舒适传感应用

2021 21st International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers) Pub Date : 2021-06-20 DOI: 10.1109/Transducers50396.2021.9495565

Izhar, Wei-Qing Xu, Hadi Tavakkoli, Jose Cabot, Xu Zhao, Mingzheng Duan, Yi-Kuen Lee

{"title":"Single-Chip Integration of CMOS Compatible Mems Temperature/Humidity and Highly Sensitive Flow Sensors for Human Thermal Comfort Sensing Application","authors":"Izhar, Wei-Qing Xu, Hadi Tavakkoli, Jose Cabot, Xu Zhao, Mingzheng Duan, Yi-Kuen Lee","doi":"10.1109/Transducers50396.2021.9495565","DOIUrl":"https://doi.org/10.1109/Transducers50396.2021.9495565","url":null,"abstract":"In this work, we report a single-chip integration of CMOS compatible MEMS temperature, humidity, and highly sensitive flow sensor for the application of human thermal comfort (HTC) sensing. The present multi-sensors chip (MSC) comes up with a couple of merits. Firstly, it utilizes a low-cost 3-mask fabrication process to fabricate temperature, humidity, and flow sensors on a single chip with a proper packaging layer (parylene C) that acts as both packaging (for temperature & flow sensors) and a humidity sensing layer. Secondly, a fully released thermoresistive calorimetric flow (TCF) sensor with dual pairs of detectors is fabricated to achieve high sensitivity. The fabricated (flow, humidity, and temperature) sensors were characterized under different air velocities, humidity, and temperature levels, respectively. The measurement results indicated a maximum sensitivity of 312 mV/ms−1 for the developed TCF sensor with dual detectors design which is almost doubled compared to conventional single pair of detectors design. Furthermore, the humidity sensor achieved an average sensitivity of 7.83 fF/%RH, whereas the temperature sensor shows a resistance change of $5.78Omega/^{circ}mathrm{C}$ and TCR of $1.43 times 10^{-3}/^{circ} mathrm{C}$. The experimental results indicated that our MSC is promising for the HTC sensing application for smart buildings in the era of Internet of Things (IoT).","PeriodicalId":6814,"journal":{"name":"2021 21st International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers)","volume":"42 1","pages":"1219-1222"},"PeriodicalIF":0.0,"publicationDate":"2021-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87208656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Corrosion Monitoring Of Sacrificial Anodes Based On Contour Plot Analysis Of Electro-Mechanical Impedance Spectra 基于机电阻抗谱等值线图分析的牺牲阳极腐蚀监测

2021 21st International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers) Pub Date : 2021-06-20 DOI: 10.1109/Transducers50396.2021.9495493

Jeslin Thalapil, Durgesh U. Tamhane, Sauvik Banerjee, S. Tallur

引用次数: 0

A Vacuum-Driven Microfluidic Array for Multi-Step Sample Digitalization 用于多步样品数字化的真空驱动微流控阵列

2021 21st International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers) Pub Date : 2021-06-20 DOI: 10.1109/Transducers50396.2021.9495676

Jiumei Hu, Liben Chen, Pengfei Zhang, K. Hsieh, Hui Li, Tza-Huei Wang

引用次数: 0

Intersecting Book Inspired High-Power-Density Electret/Triboelectric Multilayered Power Generator with Flexible Interdigital Electrodes 具有柔性数字间电极的高功率密度驻极体/摩擦电多层发电机

2021 21st International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers) Pub Date : 2021-06-20 DOI: 10.1109/Transducers50396.2021.9495628

Hao Huang, Zhe Zhao, K. Tao, Jin Wu, Bowen Ji, W. Yuan, Honglong Chang

{"title":"Intersecting Book Inspired High-Power-Density Electret/Triboelectric Multilayered Power Generator with Flexible Interdigital Electrodes","authors":"Hao Huang, Zhe Zhao, K. Tao, Jin Wu, Bowen Ji, W. Yuan, Honglong Chang","doi":"10.1109/Transducers50396.2021.9495628","DOIUrl":"https://doi.org/10.1109/Transducers50396.2021.9495628","url":null,"abstract":"Inspired by the classic friction phenomenon in life, a multi-layer interdigital Electret/Triboelectric Multilayered Power Generator (ET-MPG) that imitates the friction of book pages is designed. Its production is based on a flexible substrate and has special properties that other rigid devices do not have. For example, a very small positive pressure can increase its output performance by 80%, and the final peak power density can reach 0.18W/m2. Through exploration experiments, it is known that the number of output peaks of the interdigital electrode has a corresponding relationship with the number of figures, and the output performance can be multiplied. When the sliding rate is 1m/s, the highest peak voltage reaches 30 V, the average output power of a single layer reaches 10 µW, and the power density can reach 54 mW/m2 in the preliminary results. In addition, by exploring the influencing factors of the friction between the intersecting books, we can understand the large amount of energy contained in this multi-layer flexible structure. The peak energy density of a single page reaches 2.3 J/m2. In addition, the electret generator not only has a high-performance output, but also because it uses all flexible materials, its wearing comfort is unmatched by other rigid devices. This is of great significance to the energy supply of wearable devices and the energy collection on the surface of the human body.","PeriodicalId":6814,"journal":{"name":"2021 21st International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers)","volume":"7 1","pages":"936-939"},"PeriodicalIF":0.0,"publicationDate":"2021-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87945736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Microfluidic Device Platform Reconstructing Lung Pattern for Cancer Immunotherapy Applications 一种用于肿瘤免疫治疗的肺形态重建微流控装置平台

2021 21st International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers) Pub Date : 2021-06-20 DOI: 10.1109/Transducers50396.2021.9495673

Yu-Chen Chen, Han-Jung Liao, Jean-An Chich, Pin-Tzu Lai, Yi-Ying Liang, Kang-Yun Lee, Wei-Lun Sun, S. Ho, Yu-Shiuan Wang, Wan-Chen Huang, Wei-Chiao Chang, Sung-Yang Wei, Cheng-Hsien Liu

{"title":"A Microfluidic Device Platform Reconstructing Lung Pattern for Cancer Immunotherapy Applications","authors":"Yu-Chen Chen, Han-Jung Liao, Jean-An Chich, Pin-Tzu Lai, Yi-Ying Liang, Kang-Yun Lee, Wei-Lun Sun, S. Ho, Yu-Shiuan Wang, Wan-Chen Huang, Wei-Chiao Chang, Sung-Yang Wei, Cheng-Hsien Liu","doi":"10.1109/Transducers50396.2021.9495673","DOIUrl":"https://doi.org/10.1109/Transducers50396.2021.9495673","url":null,"abstract":"Cancer is one of the leading causes of death globally. To simulate a similar environment of human tissue is the difficulty in cancer research. The development of 3D culture model is used to imitate the environment to provide a potential research strategy. Matrigel is the most commonly used material for 3D culture models. However, it is derived from murine tumors, unsuitable for clinical applications. In this study, the methacrylated gelatin (GelMA) was blended with type I collagen as a biomaterial in our microfluidic device. We further optimized the device design; it can perform entirely experimental functions without requiring complicated parts such as pumps and valves. On this microfluidic platform, the biocompatible hydrogel and cells could be patterned via liquid dielectrophoresis (LDEP) and dielectrophoretic force (DEP). The experimental results demonstrated that the human lung cancer cells were patterned via both DEP/LDEP and light-curing hydrogel with low cell mortality. The patterned cells' mortality rate is less than 5% after 24 hr of cultivation. Our results suggest the potential of this device for future clinical cancer study applications. Furthermore, we also expect to achieve bionic tumors and explore the interaction between 3D cell models and drugs.","PeriodicalId":6814,"journal":{"name":"2021 21st International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers)","volume":"169 1","pages":"479-482"},"PeriodicalIF":0.0,"publicationDate":"2021-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85077854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Compact Acoustic Particle Velocity Gradient Sensor Based on MEMS Hot-Wire Sensor Chips 基于MEMS热线传感器芯片的小型声粒子速度梯度传感器

2021 21st International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers) Pub Date : 2021-06-20 DOI: 10.1109/Transducers50396.2021.9495574

Lingmeng Yang, Zhezheng Zhu, Wenhan Chang, Fanrui Meng, Chengchen Gao, Y. Hao, Zhenchuan Yang

引用次数: 2

All-Polymer Soft-X-Ray-Charged Piezoelectret for Push-Button Energy Harvester 用于按钮能量收集器的全聚合物软x射线充电压电体

2021 21st International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers) Pub Date : 2021-06-20 DOI: 10.1109/Transducers50396.2021.9495733

Jia Lu, Yuji Suzuki

引用次数: 0

First Jumps of a Silicon Microrobot with an Energy Storing Substrate Spring 带有储能衬底弹簧的硅微型机器人的初跳

2021 21st International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers) Pub Date : 2021-06-20 DOI: 10.1109/Transducers50396.2021.9495685

Craig B. Schindler, Hani C. Gomez, K. Pister

引用次数: 0

Particle Size Determination in Impedance Flow Cytometry Using Measured Opacity 采用测量不透明度的阻抗流式细胞术测定颗粒大小

2021 21st International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers) Pub Date : 2021-06-20 DOI: 10.1109/Transducers50396.2021.9495740

Douwe S de Bruijn, K. F. Jorissen, W. Olthuis, A. van den Berg

引用次数: 1