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Does glucose affect our vision? A preliminary study using smart glasses

Does glucose affect our vision? A preliminary study using sm...

2023 IEEE EMBS Special Topic conference on Data Science and Engineering in Healthcare, Medicine and Biology, IEEECONF 2023

作者： Piaseczna, Natalia Doniec, Rafal Sieciński, Szymon Grzegorzek, Marcin Tkacz, Ewaryst Silesian University of Technology Faculty of Biomedical Engineering Department of Biosensors and Processing of Biomedical Signals Roosevelta 40 Zabrze41-800 Poland University of Lübeck Institute of Medical Informatics Ratzeburger Allee 160 Lübeck23562 Germany Fraunhofer Imte Mönkhofer Weg 239a Lübeck23562 Germany

ISBN: (纸本)9798350383386

In this study, we investigate the relationship between blood glucose levels and visual acuity during simulated driving using smart glasses and machine learning. We found compelling correlations between blood glucose levels and visual performance, with a classification accuracy of 98.70%. These results highlight the importance of blood glucose regulation for road safety and human well-being, and the potential of wearable sensor technology to advance our understanding of physiological influences on human performance. © 2023 IEEE.

关键词： Wearable sensors

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sensor Probes and Phantoms for Advanced Transcranial Magnetic Stimulation System Developments 12

Sensor Probes and Phantoms for Advanced Transcranial Magneti...

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conference on smart biomedical and physiological sensor technology xiI

作者： Meng, Qinglei Patel, Prashil Trivedi, Sudhir Du, xiaoming Hong, Elliot Choa, Fow-Sen Univ Maryland Baltimore Cty Dept Comp Sci & Elect Engn Baltimore MD 21228 USA Brimrose Corp Hunt Valley Loveton Ctr Sparks MD 21152 USA Univ Maryland Sch Med Dept Psychiat MPRCUMB Baltimore MD 21201 USA Maryland Psychiat Res Ctr Baltimore MD 21228 USA

ISBN: (纸本)9781628416039

Transcranial magnetic stimulation (TMS) has become one of the most widely used noninvasive method for brain tissue stimulation and has been used as a treatment tool for various neurological and psychiatric disorders including migraine, stroke, Parkinson's disease, dystonia, tinnitus and depression. In the process of developing advanced TMS deep brain stimulation tools, we need first to develop field measurement devices like sensory probes and brain phantoms, which can be used to calibrate the TMS systems. Currently there are commercially available DC magnetic or electric filed measurement sensors, but there is no instrument to measure transient fields. In our study, we used a commercial figure-8 shaped TMS coil to generate transient magnetic field and followed induced field and current. The coil was driven by power amplified signal from a pulse generator with tunable pulse rate, amplitude, and duration. In order to obtain a 3D plot of induced vector electric field, many types of probes were designed to detect single component of electric-field vectors along x, y and z axis in the space around TMS coil. We found that resistor probes has an optimized signal-to-noise ratio (SNR) near 3k ohm but it signal output is too weak compared with other techniques. We also found that inductor probes can have very high output for Curl E measurement, but it is not the E-field distribution we are interested in. Probes with electrical wire wrapped around iron coil can directly measure induced E-field with high sensitivity, which matched computer simulation results.

关键词： TMS induced electric field sensing

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Development of a depolarized Raman spectrometer for potential surface-enhanced Raman optical activity (SEROA) measurements

Development of a depolarized Raman spectrometer for potentia...

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conference on smart biomedical and physiological sensor technology VIII

作者： Li, Honggang BioTools Inc Jupiter FL 33458 USA

ISBN: (纸本)9780819485991

Raman optical activity (ROA) spectroscopy is a chiral sensitive vibrational spectroscopic technique that measures the difference of molecular responses to either left or right circularly polarized photon radiation. As a structural sensitive probe, ROA has great potential applications in fabricating bio-molecular sensors due to its capability of capturing small changes in molecular structure. However, ROA is a weak effect on the order of 10(-3) or 10(-4) smaller than its parent spontaneous Raman. Extension of ROA to widely sensing applications can be accelerated by combining it with surface plasmon resonance effect, surface-enhanced Raman spectroscopy (SERS), allowing for trace chemical detections. However, it has been shown to be very challenging to combine SERS with ROA to obtain a reliable surface-enhanced Raman optical activity measurement by several independent ROA research groups. This is because of the complexity of interaction of chiral molecules with metal surfaces. In addition, another main factor for the difficulty is the lack of a depolarized ROA spectrometer which can remove effectively huge polarized Raman bands, generally the major sources of artifacts in ROA. In this paper, we will discuss the development of a depolarized Raman spectrometer. This newly developed depolarized Raman instrument is based on the BioTools' ChiralRAMAN-2X scattered circular polarization (SCP) ROA spectrometer and has been modified into a dual circular polarization ROA spectrometer with the introducing circularity conversion in the incident radiation path. Combing the simultaneous detection of left and right circularly polarized scattering photons, newly developed Raman instrument are capable of modulate both incident and scattered light simultaneously resulting dual circular polarization (DCP) ROA measurements from depolarized parent Raman scattering. The performance of the Raman spectrometer has been initially evaluated with standard sample of small molecules for the proof-o

关键词： ROA DCP SERS SEROA depolarized sensor

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Non-Contact Vital Sign Monitoring With a Metamaterial Surface

Non-Contact Vital Sign Monitoring With a Metamaterial Surfac...

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IEEE MTT-S International Microwave biomedical conference (IMBioC)

作者： Nguyen, Dat T. Zeng, Qihang Tian, xi Ho, John S. Natl Univ Singapore NUS Grad Sch Integrat Sci & Engn Program Singapore Singapore Natl Univ Singapore Dept Elect & Comp Engn Singapore Singapore Natl Univ Singapore SIA NUS Digital Aviat Corp Lab Singapore Singapore

ISBN: (纸本)9781665423397

Vital sign monitoring is important for determining the health status and well-being of an individual. Despite their high level of accuracy, clinical sensing methods for vital signs, such as heart or respiration signals, often require direct skin contact and the use of wires, making them restrictive and inconvenient. In contrast, alternative sensing approaches using wireless means can be comfortable for users and are suitable for long-term, continuous health monitoring scenarios. Recent advances in physiological sensing using Doppler radars present great potential for non-contact vital sign monitoring, but face many challenges due to background clutter and large body motions. In this work, we develop an integrated system for non-contact vital sign monitoring based on microwave metamaterials and software-defined Doppler radar. Our sensor is thin, flexible, and able to monitor health through clothing. We demonstrate our system's capability in respiration and cardiac sensing through experiments on a healthy volunteer and validate its cardiac sensing accuracy against electrocardiography as the gold standard. Validation results show a Pearson's correlation coefficient r approximate to 0.9 and Bland-Altman agreement limits of +/- 37.1 ms between our sensor's and the gold standard's estimation of heart beat-to-beat intervals.

关键词： biological radar physiological sensing spoof surface plasmons vital sign monitoring

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A Novel Symmetric Key Compact to Reliable Connection between sensor Nodes Using Exploitable Features of ECG

A Novel Symmetric Key Compact to Reliable Connection between...

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2022 International conference on Innovative Computing, Intelligent Communication and smart Electrical Systems, ICSES 2022

作者： Riya, K.S. Sudhakar, J. Ravichandran, M. Tamilselvi, M. Sajiv, G. Vel Tech Multi Tech Dr Rangerajan Dr Sakunthala Engineering College Department of Computer Science and Engineering Chennai India Chennai Institute of Technology Kundrathur Department of Biomedical Engineering Chennai600069 India K. Ramakrishnan College of Engineering Department of Mechanical Engineering Trichy621 112 India T.S.Srinivasan Centre for Polytechnic College and Advanced Training Department of Mechatronics Engineering Vanagaram Chennai600 095 India SIMATS Saveetha School of Engineering Department of ECE Chennai602105 India

ISBN: (数字)9781665474139

ISBN: (纸本)9781665474139

Wireless sensor networks (WSNs) have evolved to serve a diverse multitude of uses, including field of health and social systems, as a result of advancements in the technology. In sensing devices, a wireless body area network (WBAN) is a particularly unique network technology that is meant to operate continuously to connect smart equipment and equipment implanted both in and out of person that are used for lengthy healthcare monitoring within even outside a medical environment. A WBAN is a network of sensor nodes that are implanted in and/or fastened on the individual body for the purpose of tracking the individual's physiological features. Although the growth of WBAN technology has the potential to considerably assist medical healthcare systems, the collection and transmission of private physiological data in such an open setting poses severe security and privacy issues. Throughout this research, we offer a unique key-agreement mechanism for securing communications between sensor nodes of wireless body area networks (WBANs). In order to communicate, the suggested technique relies on the measurement and verification of shared physiological properties at both the transmitter and receiver sensors. In contrast to current protocols, the suggested protocol allows communicating sensors to leverage their prior session pre-knowledge for encrypted communication during a certain length of time, as opposed to existing protocols. Thus, the time necessary for creating the shared key will be reduced. In addition, extracted characteristics will not be repeated in the medium, preventing listening attacks while keeping the unpredictability of the key. The experimental outcomes show the efficacy of the suggested key agreement existing protocols of both the image retrieval and the key establishment phases, with an efficiency of 99.50 percent and an error rate of 0.005 percent in both the image retrieval and based consensus phases. When compared to current key agreement methods, the sug

关键词： sensor nodes

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smart Healthcare: Cloud-Enabled Body sensor Networks 14

Smart Healthcare: Cloud-Enabled Body Sensor Networks

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14th Annual IEEE International conference on Wearable and Implantable Body sensor Networks (BSN)

作者： Yu, Ruoxi Mak, Tony W. C. Zhang, Ruikai Wong, Sunny H. Zheng, Yali Lau, James Y. W. Poon, Carmen C. Y. Chinese Univ Hong Kong Dept Surg Shatin Hong Kong Peoples R China Chinese Univ Hong Kong State Key Lab Digest Dis Inst Digest Dis Dept Med & TherapeutLi Ka Slung Inst Hlth Sci Hong Kong Hong Kong Peoples R China

ISBN: (纸本)9781509062447

Body sensors are now commonly used as ingestible, wearable and implantable devices for clinical diagnosis and continuous physiological monitoring. Nevertheless, they usually have limited resources. Recent advancements in technologies provide a possible solution to mitigate the resource limitation of these devices by connecting them with mobile devices and cloud services. To evaluate the feasibility of the cloud-enabled body sensor networks, this paper presents simulation results on testing the feasibility of 24-hour operating time and concurrent user support for the cloud-enabled applications.

关键词： Cloud computing biomedical monitoring Mobile handsets Monitoring Body sensor networks Wearable sensors

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Design of a Multi-sensor Wearable physiological Parameters Monitoring System Using Machine Learning Algorithm

Design of a Multi-Sensor Wearable Physiological Parameters M...

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2024 International conference on smart Electronics and Communication Systems, ISENSE 2024

作者： Prabakaran, Aarthy Rufus, Elizabeth School of Electronics Engineering Vellore Institute of Technology Vellore India

ISBN: (纸本)9798331528126

An aging population and changing lifestyles have led to an increase in health problems, necessitating a robust and scalable medical system. A healthy society can be fostered by implementing a comprehensive health tracking system that enables early disease detection and continuous remote healthcare monitoring. This can be achieved by employing a wearable healthcare monitoring system, that can assist the medical sector in reducing hospitalizations and facilitating early diagnosis. To address this need, a Wearable physiological Monitoring System (W-PMS) is proposed in this study. A prototype has been developed with the capability to record electrocardiography (ECG), photoplethysmography (PPG), and body temperature, and calculate crucial vital parameters such as heart rate, saturation of peripheral oxygen (SpO2) level, and blood pressure (BP). The W-PMS comprises three sensor modules integrated with a microcontroller to collect the physiological data. The acquired physiological data are processed by the microcontroller to calculate certain parameters such as heart rate and SpO2 level. The acquired data are pushed to the cloud to estimate the BP through an indigenous Android application. The data transmission between the microcontroller and the application occurs via Bluetooth communication. The final results are visualized on a mobile device, enabling users to track their health status. In conclusion, wearable devices incorporating biomedical sensors have the potential to remotely monitor an individual's health condition. © 2024 IEEE.

关键词： Blood pressure

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Biochemical microsensors on the basis of metabolically sensitive hydrogels

Biochemical microsensors on the basis of metabolically sensi...

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conference on Electroactive Polymer Actuators and Devices (EAPAD) 2011

作者： Guenther, Margarita Gerlach, Gerald Wallmersperger, Thomas Solzbacher, Florian Magda, Jules J. Lin, Genyao Tathireddy, Prashant Orthner, Michael P. Tech Univ Dresden Solid State Elect Lab IFE Helmholtzstr 10 D-01069 Dresden Germany Tech Univ Dresden Inst Solid Mech IFKM D-01062 Dresden Germany Univ Utah Dept Elect & Comp Engn Salt Lake City UT 84112 USA Univ Utah Dept Mat Sci & Engn Salt Lake City UT 84112 USA

ISBN: (纸本)9780894185380

With the rapid development of micro systems technology and microelectronics, smart electronic systems are emerging for the continuous surveillance of relevant parameters in the body and even for closed-loop systems with a sensor feedback to drug release systems. With respect to diabetes management, there is a critical societal need for a sensor that can be used to continuously measure a patient's blood glucose concentration twenty four hours a day on a long-term basis. In this work, thin films of "stimuli-responsive" or "smart" hydrogels were combined with microfabricated piezoresistive pressure transducers to obtain "chemomechanical sensors" that can serve as selective and versatile wireless biomedical sensors. The sensitivity of hydrogels with regard to the concentration of glucose in solutions with physiological pH, ionic strength and temperature was investigated in vitro. The response of the glucose-sensitive hydrogel was studied at different regimes of the glucose concentration change and at different temperatures. sensor response time and accuracy with which a sensor can track gradual changes in glucose was estimated.

关键词： piezoresistive sensor biochemical sensor polyelectrolyte hydrogel glucose-sensitive pH-sensitive swelling behavior biomedical applications

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Development of a smart Home-Based Package for Unobtrusive physiological Monitoring 40

Development of a Smart Home-Based Package for Unobtrusive Ph...

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40th Annual International conference of the IEEE-Engineering-in-Medicine-and-Biology-Society (EMBC)

作者： Armanfard, Narges Komeili, Majid Mihailidis, Alex Univ Toronto Univ Hlth Network Toronto ON Canada

ISBN: (纸本)9781538636466

Home-based programs have been shown to be effective in improving health conditions, patient self-management, quality of life, and health outcomes. However, there is mixed-evidence on the effectiveness of these programs due to limitations in the intervention tools that are used, primarily the burden that is placed on the user, especially among seniors. In this paper we developed a novel home-based package that measures critically important physiological information such that neither active compliance or interaction from the user is required. To this end, we embedded passive sensors (including load cells, electrodes, pulse sensor and color sensors) into common household items such as tiling, furniture and wall. The smart package measures subject's electrocardiogram (ECG), photoplethysmogram (PPG), ballistocardiogram (BCG), electromyogram (EMG) and imaging photoplethysmogram (IPPG). In contrast to the previous studies, the proposed package measures all the physiological information unobtrusively, simultaneously and in a synchronized manner such that all the data samples corresponding to different intervals of a specific cardiovascular cycle can be identified. Such information can be analyzed by a clinician or be used for a higher level information extraction such as beat-to-beat blood pressure estimation. In addition, the proposed package is the first and only home-based technology that can simultaneously and unobtrusively capture both mechanical and electrical characteristics of user's heart activities. This results in a more accurate home-based vital parameters monitoring.

关键词： Intelligent sensors Electrodes Foot biomedical monitoring Electrocardiography Electromyography

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Editorial Special Issue on sensors for Noninvasive physiological Monitoring

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IEEE sensorS JOURNAL 2012年第3期12卷 413-415页

作者： Lay-Ekuakille, Aime Davis, Cristina Kanoun, Olfa Li, Zhihong Trabacca, Antonio Univ Salento Dept Innovat Engn I-73100 Lecce Italy Univ Calif Davis Dept Mech & Aeronaut Engn Davis CA 95616 USA Tech Univ Chemnitz D-09126 Chemnitz Germany Peking Univ Microelect Inst Microelect Beijing 100871 Peoples R China Sci Inst IRCCS E Medea Unit Neurorehabil I-23842 Bosisio Parini Lecco Italy

The need for noninvasive physiological monitoring has been a goal for some time, but there were many technical limitations in the past that limited development of this new category of tools. Some of these limitations have now been solved and addressed thanks to new discoveries and advances in the fields of measurement technology, material science, micro/nanotechnologies, electronics, signal processing, diagnosis approaches, and image processing capabilities – just to name a few. The aforementioned advances allow us to noninvasively monitor many physiological parameters and to develop new devices and instrumentation to examine the function of many diverse physiological systems, namely, heart, brain, foetus, body motion, kidney, blood, breathing, lungs, skin, eyes – again, naming only a few applications. This Special Issue has shown the interest of international scientific community working on the topic, and we received manuscript submissions on almost every topic of noninvasive sensing, including: technology infrastructure, software issues, sensors and sensing systems. Wireless sensor networks are particularly interesting, and there is an urgent and growing need for this technology in the area of health monitoring and medical telemetry. This has been greatly facilitated by advances in the biological sensor research area. Health monitoring for both routine and critical life-threatening purposes may both be equally of interest, and there are still remaining technical constraints that should be studied in more depth, including: lowering overall power consumption, increased security measures for critical data, adaptability to various network configurations, increased data throughput, and message latency. Seeing the index of works that were selected for final publication, most of subtopics of the call for papers have been covered by very high quality contributions.

关键词： Special issues and sections Noninvasive treatment biomedical monitoring Physiology

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