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https://www.readbyqxmd.com/read/28446682/smartphone-controlled-optogenetically-engineered-cells-enable-semiautomatic-glucose-homeostasis-in-diabetic-mice
#1
REVIEW
Jiawei Shao, Shuai Xue, Guiling Yu, Yuanhuan Yu, Xueping Yang, Yu Bai, Sucheng Zhu, Linfeng Yang, Jianli Yin, Yidan Wang, Shuyong Liao, Sanwei Guo, Mingqi Xie, Martin Fussenegger, Haifeng Ye
With the increasingly dominant role of smartphones in our lives, mobile health care systems integrating advanced point-of-care technologies to manage chronic diseases are gaining attention. Using a multidisciplinary design principle coupling electrical engineering, software development, and synthetic biology, we have engineered a technological infrastructure enabling the smartphone-assisted semiautomatic treatment of diabetes in mice. A custom-designed home server SmartController was programmed to process wireless signals, enabling a smartphone to regulate hormone production by optically engineered cells implanted in diabetic mice via a far-red light (FRL)-responsive optogenetic interface...
April 26, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28445421/an-improved-ble-indoor-localization-with-kalman-based-fusion-an-experimental-study
#2
Jenny Röbesaat, Peilin Zhang, Mohamed Abdelaal, Oliver Theel
Indoor positioning has grasped great attention in recent years. A number of efforts have been exerted to achieve high positioning accuracy. However, there exists no technology that proves its efficacy in various situations. In this paper, we propose a novel positioning method based on fusing trilateration and dead reckoning. We employ Kalman filtering as a position fusion algorithm. Moreover, we adopt an Android device with Bluetooth Low Energy modules as the communication platform to avoid excessive energy consumption and to improve the stability of the received signal strength...
April 26, 2017: Sensors
https://www.readbyqxmd.com/read/28432532/a-portable-battery-powered-microfluidic-impedance-cytometer-with-smartphone-readout-towards-personal-health-monitoring
#3
Niloy Talukder, Abbas Furniturewalla, Tuan Le, Matthew Chan, Shreyas Hirday, Xinnan Cao, Pengfei Xie, Zhongtian Lin, Azam Gholizadeh, Steve Orbine, Mehdi Javanmard
We present a portable system for personalized blood cell counting consisting of a microfluidic impedance cytometer and portable analog readout electronics, feeding into an analog-to-digital converter (ADC), and being transmitted via Bluetooth to a user-accessible mobile application. We fabricated a microfluidic impedance cytometer with a novel portable analog readout. The novel design of the analog readout, which consists of a lock-in-amplifier followed by a high-pass filter stage for subtraction of drift and DC offset, and a post-subtraction high gain stage, enables detection of particles and cells as small as 1 μm in diameter, despite using a low-end 8-bit ADC...
June 2017: Biomedical Microdevices
https://www.readbyqxmd.com/read/28422664/diaper-embedded-urinary-tract-infection-monitoring-sensor-module-powered-by-urine-activated-batteries
#4
Weeseong Seo, Wuyang Yu, Tianlin Tan, Babak Ziaie, Byunghoo Jung
Urinary tract infection (UTI) is one of the most common infections in humans. UTI is easily treatable using antibiotics if identified in early stage. However, without early identification and treatment, UTI can be a major source of serious complications in geriatric patients, in particular, those suffering from neurodegenerative diseases. Also, for infants who have difficulty in describing their symptoms, UTI may lead to serious development of the disease making early identification of UTI crucial. In this paper, we present a diaper-embedded, wireless, self-powered, and autonomous UTI monitoring sensor module that allows an early detection of UTI with minimal effort...
April 14, 2017: IEEE Transactions on Biomedical Circuits and Systems
https://www.readbyqxmd.com/read/28422068/a-low-cost-bluetooth-low-energy-transceiver-for-wireless-sensor-network-applications-with-a-front-end-receiver-matching-network-reusing-power-amplifier-load-inductor
#5
Zhen Liang, Bin Li, Mo Huang, Yanqi Zheng, Hui Ye, Ken Xu, Fangming Deng
In this work, a low cost Bluetooth Low Energy (BLE) transceiver for wireless sensor network (WSN) applications, with a receiver (RX)-matching network-reusing power amplifier (PA) load inductor, is presented. In order to decrease the die area, only two inductors were used in this work. Besides the one used in the voltage control oscillator (VCO), the PA load inductor was reused as the RX impedance matching component in the front-end. Proper controls have been applied to achieve high transmitter (TX) input impedance when the transceiver is in the receiving mode, and vice versa...
April 19, 2017: Sensors
https://www.readbyqxmd.com/read/28420132/a-smart-voltage-and-current-monitoring-system-for-three-phase-inverters-using-an-android-smartphone-application
#6
Mohannad Jabbar Mnati, Alex Van den Bossche, Raad Farhood Chisab
In this paper, a new smart voltage and current monitoring system (SVCMS) technique is proposed. It monitors a three phase electrical system using an Arduino platform as a microcontroller to read the voltage and current from sensors and then wirelessly send the measured data to monitor the results using a new Android application. The integrated SVCMS design uses an Arduino Nano V3.0 as the microcontroller to measure the results from three voltage and three current sensors and then send this data, after calculation, to the Android smartphone device of an end user using Bluetooth HC-05...
April 15, 2017: Sensors
https://www.readbyqxmd.com/read/28414721/a-novel-smart-navigation-system-for-intramedullary-nailing-in-orthopedic-surgery
#7
Jaesuk Choi, Jihun Kim, Jae Youn Hwang, Minkyu Je, Jun-Young Kim, Shin-Yoon Kim
This paper proposes a novel smart surgical navigation system for intramedullary nailing in orthopedic surgery. Using a handle-integrated laser guidance module, the system can target a drill insertion point onto skin, indicating an accurate target position to perpendicularly access an invisible distal hole. The proposed handle-integration-based fixation of the laser guidance module precisely defines the relative position of the module with respect to the distal hole. Consequently, unlike conventional systems, the proposed system can indicate the target insertion point without any help from bulky and costly external position-tracking equipment that is usually required for compensating disturbances generated by external impacts...
2017: PloS One
https://www.readbyqxmd.com/read/28412662/a-wireless-point-of-care-testing-system-for-the-detection-of-neuron-specific-enolase-with-microfluidic-paper-based-analytical-devices
#8
Yan Fan, Juntao Liu, Yang Wang, Jinping Luo, Huiren Xu, Shengwei Xu, Xinxia Cai
Neuron-specific enolase (NSE) had clinical significance on diagnosis, staging, monitoring effect and judging prognosis of small cell lung cancer. Thus, there had a growing demand for the on-site testing of NSE. Here, a wireless point-of-care testing (POCT) system with electrochemical measurement for NSE detection was developed and verified. The wireless POCT system consisted of microfluidic paper-based analytical devices (μPADs), electrochemical detector and Android's smartphone. Differential pulse voltammetry (DPV) measurement was adopted by means of electrochemical detector which including a potentiostat and current-to-voltage converter...
April 12, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28394268/fusing-bluetooth-beacon-data-with-wi-fi-radiomaps-for-improved-indoor-localization
#9
Loizos Kanaris, Akis Kokkinis, Antonio Liotta, Stavros Stavrou
Indoor user localization and tracking are instrumental to a broad range of services and applications in the Internet of Things (IoT) and particularly in Body Sensor Networks (BSN) and Ambient Assisted Living (AAL) scenarios. Due to the widespread availability of IEEE 802.11, many localization platforms have been proposed, based on the Wi-Fi Received Signal Strength (RSS) indicator, using algorithms such as K-Nearest Neighbour (KNN), Maximum A Posteriori (MAP) and Minimum Mean Square Error (MMSE). In this paper, we introduce a hybrid method that combines the simplicity (and low cost) of Bluetooth Low Energy (BLE) and the popular 802...
April 10, 2017: Sensors
https://www.readbyqxmd.com/read/28387724/analysis-and-tools-for-improved-management-of-connectionless-and-connection-oriented-ble-devices-coexistence
#10
Antonio Del Campo, Lorenzo Cintioni, Susanna Spinsante, Ennio Gambi
With the introduction of low-power wireless technologies, like Bluetooth Low Energy (BLE), new applications are approaching the home automation, healthcare, fitness, automotive and consumer electronics markets. BLE devices are designed to maximize the battery life, i.e., to run for long time on a single coin-cell battery. In typical application scenarios of home automation and Ambient Assisted Living (AAL), the sensors that monitor relatively unpredictable and rare events should coexist with other sensors that continuously communicate health or environmental parameter measurements...
April 7, 2017: Sensors
https://www.readbyqxmd.com/read/28368341/security-enhancement-of-wireless-sensor-networks-using-signal-intervals
#11
Jaegeun Moon, Im Y Jung, Jaesoo Yoo
Various wireless technologies, such as RF, Bluetooth, and Zigbee, have been applied to sensor communications. However, the applications of Bluetooth-based wireless sensor networks (WSN) have a security issue. In one pairing process during Bluetooth communication, which is known as simple secure pairing (SSP), the devices are required to specify I/O capability or user interference to prevent man-in-the-middle (MITM) attacks. This study proposes an enhanced SSP in which a nonce to be transferred is converted to a corresponding signal interval...
April 2, 2017: Sensors
https://www.readbyqxmd.com/read/28359171/a-novel-pen-based-bluetooth-enabled-insulin-delivery-system-with-insulin-dose-tracking-and-advice
#12
REVIEW
Timothy S Bailey, Jenine Y Stone
Diabetes is growing in prevalence internationally. As more individuals require insulin as part of their treatment, technology evolves to optimize delivery, improve adherence, and reduce dosing errors. Insulin pens outperform vial and syringe in simplicity, dosing accuracy, and user preference. Bolus advisors improve dosing confidence and treatment adherence. The InPen System offers a novel approach to treatment via a wireless pen that syncs to a mobile application featuring a bolus advisor, enabling convenient insulin dose tracking and more accurate bolus advice among other features...
May 2017: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/28355147/glimpse-google-glass-interface-for-sensory-feedback-in-myoelectric-hand-prostheses
#13
Marko Markovic, Hemanth Karnal, Bernhard Graimann, Dario Farina, Strahinja Dosen
OBJECTIVE: Providing sensory feedback to the user of the prosthesis is an important challenge. The common approach is to use tactile stimulation, which is easy to implement but requires training and has limited information bandwidth. In this study, we propose an alternative approach based on augmented reality. APPROACH: We have developed the GLIMPSE, a Google Glass application which connects to the prosthesis via a Bluetooth interface and renders the prosthesis states (EMG signals, aperture, force and contact) using augmented reality (see-through display) and sound (bone conduction transducer)...
March 29, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28341615/design-and-usability-of-a-heart-failure-mhealth-system-a-pilot-study
#14
Nagla Alnosayan, Samir Chatterjee, Ala Alluhaidan, Edward Lee, Linda Houston Feenstra
BACKGROUND: Despite the advances in mobile health (mHealth) systems, little is known about patients' and providers' experiences using a new mHealth system design. OBJECTIVE: This study aimed to understand challenges and provide design considerations for a personalized mHealth system that could effectively support heart failure (HF) patients after they transition into the home environment. METHODS: Following exploratory interviews with nurses and preventive care physicians, an mHealth system was developed...
March 24, 2017: JMIR Human Factors
https://www.readbyqxmd.com/read/28335385/patient-posture-monitoring-system-based-on-flexible-sensors
#15
Youngsu Cha, Kihyuk Nam, Doik Kim
Monitoring patients using vision cameras can cause privacy intrusion problems. In this paper, we propose a patient position monitoring system based on a patient cloth with unobtrusive sensors. We use flexible sensors based on polyvinylidene fluoride, which is a flexible piezoelectric material. Theflexiblesensorsareinsertedintopartsclosetothekneeandhipoftheloosepatientcloth. We measure electrical signals from the sensors caused by the piezoelectric effect when the knee and hip in the cloth are bent. The measured sensor outputs are transferred to a computer via Bluetooth...
March 13, 2017: Sensors
https://www.readbyqxmd.com/read/28330829/does-telehealth-monitoring-identify-exacerbations-of-chronic-obstructive-pulmonary-disease-and-reduce-hospitalisations-an-analysis-of-system-data
#16
Melissa Kargiannakis, Deborah A Fitzsimmons, Claire L Bentley, Gail A Mountain
BACKGROUND: The increasing prevalence and associated cost of treating chronic obstructive pulmonary disease (COPD) is unsustainable. Health care organizations are focusing on ways to support self-management and prevent hospital admissions, including telehealth-monitoring services capturing physiological and health status data. This paper reports on data captured during a pilot randomized controlled trial of telehealth-supported care within a community-based service for patients discharged from hospital following an exacerbation of their COPD...
March 22, 2017: JMIR Medical Informatics
https://www.readbyqxmd.com/read/28319042/smartphone-application-for-mechanical-quality-assurance-of-medical-linear-accelerator
#17
Hwiyoung Kim, Hyunseok Lee, Jong In Park, Chang Heon Choi, So-Yeon Park, Hee Jung Kim, Young Suk Kim, Sung-Joon Ye
Mechanical quality assurance (QA) of medical linear accelerators consists of time consuming and human-error prone procedures. We developed a smartphone-application system for mechanical QA. The system consists of two smartphones; one attached to the gantry to obtain real-time information on mechanical parameters of medical linear accelerator, and the other to display the real-time information by bluetoothing the former. Motion sensors embedded in the smartphone were used to measure gantry and collimator rotations...
March 20, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28303432/network-coded-cooperative-communication-in-a-real-time-wireless-hospital-sensor-network
#18
R Prakash, A Balaji Ganesh, Somu Sivabalan
The paper presents a network coded cooperative communication (NC-CC) enabled wireless hospital sensor network architecture for monitoring health as well as postural activities of a patient. A wearable device, referred as a smartband is interfaced with pulse rate, body temperature sensors and an accelerometer along with wireless protocol services, such as Bluetooth and Radio-Frequency transceiver and Wi-Fi. The energy efficiency of wearable device is improved by embedding a linear acceleration based transmission duty cycling algorithm (NC-DRDC)...
May 2017: Journal of Medical Systems
https://www.readbyqxmd.com/read/28298889/cortical-sensitivity-to-guitar-note-patterns-eeg-entrainment-to-repetition-and-key
#19
David A Bridwell, Emily Leslie, Dakarai Q McCoy, Sergey M Plis, Vince D Calhoun
Music is ubiquitous throughout recent human culture, and many individual's have an innate ability to appreciate and understand music. Our appreciation of music likely emerges from the brain's ability to process a series of repeated complex acoustic patterns. In order to understand these processes further, cortical responses were measured to a series of guitar notes presented with a musical pattern or without a pattern. ERP responses to individual notes were measured using a 24 electrode Bluetooth mobile EEG system (Smarting mBrainTrain) while 13 healthy non-musicians listened to structured (i...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28286464/characterization-of-impulse-radio-intrabody-communication-system-for-wireless-body-area-networks
#20
Zibo Cai, MirHojjat Seyedi, Weiwei Zhang, Francois Rivet, Daniel T H Lai
Intrabody communication (IBC) is a promising data communication technique for body area networks. This short-distance communication approach uses human body tissue as the medium of signal propagation. IBC is defined as one of the physical layers for the new IEEE 802.15.6 or wireless body area network (WBAN) standard, which can provide a suitable data rate for real-time physiological data communication while consuming lower power compared to that of radio-frequency protocols such as Bluetooth. In this paper, impulse radio (IR) IBC (IR-IBC) is examined using a field-programmable gate array (FPGA) implementation of an IBC system...
2017: Journal of Medical and Biological Engineering
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