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https://www.readbyqxmd.com/read/28546909/porous-ionic-membrane-based-flexible-humidity-sensor-and-its-multifunctional-applications
#1
Tie Li, Lianhui Li, Hongwei Sun, Yan Xu, Xuewen Wang, Hui Luo, Zheng Liu, Ting Zhang
A highly flexible porous ionic membrane (PIM) is fabricated from a polyvinyl alcohol/KOH polymer gel electrolyte, showing well-defined 3D porous structure. The conductance of the PIM changes more than 70 times as the relative humidity (RH) increases from 10.89% to 81.75% with fast and reversible response at room temperature. In addition, the PIM-based sensor is insensitive to temperature (0-95 °C) and pressure (0-6.8 kPa) change, which indicates that it can be used as highly selective flexible humidity sensor...
May 2017: Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
https://www.readbyqxmd.com/read/28541225/stability-of-enzymatic-biosensors-for-wearable-applications
#2
Apurva Sonawane, Pandiaraj Manickam, Shekhar Bhansali
Technological evolution in wearable sensors is accounting for major growth and transformation in multitude of industries ranging from healthcare to computing & informatics to communication and biomedical sciences. The major driver for this transformation is the new-found ability to continuously monitor and analyze the patients' physiology in patients' natural setting. Numerous wearable sensors are already on the market and are summarized. Most of the current technologies have focused on electro-physiological, electro-mechanical or acoustic measurements...
May 19, 2017: IEEE Reviews in Biomedical Engineering
https://www.readbyqxmd.com/read/28540957/a-skin-integrated-transparent-and-stretchable-strain-sensor-with-interactive-color-changing-electrochromic-displays
#3
Heun Park, Dong Sik Kim, Soo Yeong Hong, Chulmin Kim, Jun Yeong Yun, Seung Yun Oh, Sang Woo Jin, Yu Ra Jeong, Gyu Tae Kim, Jeong Sook Ha
In this study, we report on the development of a stretchable, transparent, and skin-attachable strain sensor integrated with a flexible electrochromic device as a human skin-inspired interactive color-changing system. The strain sensor consists of a spin-coated conductive nanocomposite film of poly(vinyl alcohol)/multi-walled carbon nanotube/poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) on a polydimethylsiloxane substrate. The sensor exhibits excellent performance of high sensitivity, high durability, fast response, and high transparency...
May 25, 2017: Nanoscale
https://www.readbyqxmd.com/read/28539086/exploring-the-effectiveness-of-smart-technologies-in-the-management-of-type-2-diabetes-mellitus
#4
Andrea Coda, Dean Sculley, Derek Santos, Xavier Girones, Shamasunder Acharya
The global epidemic of diabetes, with increasing prevalence of type 2 diabetes (T2D), is placing a huge burden on health care management and financial systems. Unless new strategic solutions are developed, the increasing prevalence of T2D will result in a significant rise in morbidity, health care costs, and complications associated with diabetes. The introduction of smart devices in diabetes management may provide meaningful improvements in clinical outcomes, patient engagement, as well as potential cost reductions for the health care system...
May 1, 2017: Journal of Diabetes Science and Technology
https://www.readbyqxmd.com/read/28536089/smart-devices-for-older-adults-managing-chronic-disease-a-scoping-review
#5
REVIEW
Ben Yb Kim, Joon Lee
BACKGROUND: The emergence of smartphones and tablets featuring vastly advancing functionalities (eg, sensors, computing power, interactivity) has transformed the way mHealth interventions support chronic disease management for older adults. Baby boomers have begun to widely adopt smart devices and have expressed their desire to incorporate technologies into their chronic care. Although smart devices are actively used in research, little is known about the extent, characteristics, and range of smart device-based interventions...
May 23, 2017: JMIR MHealth and UHealth
https://www.readbyqxmd.com/read/28531125/characterizing-dynamic-walking-patterns-and-detecting-falls-with-wearable-sensors-using-gaussian-process-methods
#6
Taehwan Kim, Jeongho Park, Seongman Heo, Keehoon Sung, Jooyoung Park
By incorporating a growing number of sensors and adopting machine learning technologies, wearable devices have recently become a prominent health care application domain. Among the related research topics in this field, one of the most important issues is detecting falls while walking. Since such falls may lead to serious injuries, automatically and promptly detecting them during daily use of smartphones and/or smart watches is a particular need. In this paper, we investigate the use of Gaussian process (GP) methods for characterizing dynamic walking patterns and detecting falls while walking with built-in wearable sensors in smartphones and/or smartwatches...
May 20, 2017: Sensors
https://www.readbyqxmd.com/read/28530204/in-bed-vital-signs-monitoring-system-based-on-unobtrusive-magnetic-induction-method-with-a-concentric-planar-gradiometer
#7
Hadiseh Mahdavi, Javier Rosell-Ferrer
SIGNIFICANCE: Unobtrusive vital signs monitoring is of major importance for various medical areas such as detection and treatment of sleep disorders, monitoring neonates and burned victims, home health care and smart home applications and wearables among others. Such applications call for monitoring methods in which the patient's natural state is less interfered with. An ideal device would be non-invasive, minimally restrictive, robust enough to compensate movements of the patients, and would operate without relying on the patient's full cooperation...
June 2017: Physiological Measurement
https://www.readbyqxmd.com/read/28530149/a-technology-roadmap-of-smart-biosensors-from-conventional-glucose-monitoring-systems
#8
Pravin Shende, Pratiksha Sahu, Ram Gaud
The objective of this review article is to focus on technology roadmap of smart biosensors from a conventional glucose monitoring system. The estimation of glucose with commercially available devices involves analysis of blood samples that are obtained by pricking finger or extracting blood from the forearm. Since pain and discomfort are associated with invasive methods, the non-invasive measurement techniques have been investigated. The non-invasive methods show advantages like non-exposure to sharp objects such as needles and syringes, due to which there is an increase in testing frequency, improved control of glucose concentration and absence of pain and biohazard materials...
June 2017: Therapeutic Delivery
https://www.readbyqxmd.com/read/28527834/perceptions-of-seniors-with-heart-failure-regarding-autonomous-zero-effort-monitoring-of-physiological-parameters-in-the-smart-home-environment
#9
Sherry L Grace, Golnoush Taherzadeh, Isaac Sung Jae Chang, Jennifer Boger, Amaya Arcelus, Susanna Mak, Caroline Chessex, Alex Mihailidis
BACKGROUND: Technological advances are leading to the ability to autonomously monitor patient's health status in their own homes, to enable aging-in-place. OBJECTIVES: To understand the perceptions of seniors with heart failure (HF) regarding smart-home systems to monitor their physiological parameters. METHODS: In this qualitative study, HF outpatients were invited to a smart-home lab, where they completed a sequence of activities, during which the capacity of 5 autonomous sensing modalities was compared to gold standard measures...
May 17, 2017: Heart & Lung: the Journal of Critical Care
https://www.readbyqxmd.com/read/28524547/performance-of-a-new-generation-continuous-autotransfusion-device-including-fat-removal-and-consequences-for-quality-controls
#10
T F Seyfried, M Gruber, D Bitzinger, M T Pawlik, A Breu, B M Graf, E Hansen
BACKGROUND AND OBJECTIVES: Cell salvage plays a key role in blood conservation. To maintain high performance, quality management is recommended. Accordingly, a new-generation autotransfusion device was tested for its performance and compared with its predecessor. Two different calculations of quality parameters were applied. MATERIALS AND METHODS: In an experimental study, the continuous autotransfusion devices CATSmart and Continuous Autotransfusion System (C.A...
May 19, 2017: Transfusion Medicine
https://www.readbyqxmd.com/read/28520481/on-the-origins-of-the-electronic-cigarette-british-american-tobacco-s-project-ariel-1962-1967
#11
Stephan Risi
Electronic cigarettes are advertised as the latest technological gadget-the smoking equivalent of smart phones. I challenge this sense of novelty by tracing their history to the 1960s, when researchers at British American Tobacco first recognized that smokers' brains were dependent on nicotine. This discovery enabled British American Tobacco to develop a novel kind of smoking device under the codename "Ariel" between 1962 and 1967. Whereas filters were meant to eliminate specific harmful constituents of tobacco smoke, Project Ariel tried to reduce smoking to its alkaloid essence: nicotine...
May 18, 2017: American Journal of Public Health
https://www.readbyqxmd.com/read/28516899/all-dielectric-resonant-cavity-enabled-metals-with-broadband-optical-transparency
#12
Zhengqi Liu, Houjiao Zhang, Xiaoshan Liu, Pingping Pan, Yi Liu, Li Tang, Guiqiang Liu
Metal films with broadband optical transparency are desirable in many optoelectronic devices, such as displays, smart windows, light-emitting diodes and infrared detectors. As bare metal is opaque to light, this issue of transparency attracts great scientific interest. In this work, we proposed and demonstrated a feasible and universal approach for achieving broadband optical transparent (BOT) metals by utilizing all-dielectric resonant cavities. Resonant dielectrics provide optical cavity modes and couple strongly with the surface plasmons of the metal film, and therefore produce a broadband near-unity optical transparent window...
May 18, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28516178/a-multi-walled-carbon-nanotube-zinc-oxide-nanofiber-based-flexible-chemiresistive-biosensor-for-malaria-biomarker-detection
#13
Brince Paul K, Asisa Kumar Panigrahi, Vikrant Singh, Shiv Govind Singh
We report the fabrication of a flexible, lightweight and disposable multi walled carbon nanotube (MWCNT)-zinc oxide (ZnO) nanofiber based chemiresistive biosensor for label free detection of the malaria biomarker, histidine rich protein II (HRP2). The sensing platform is formed by depositing nanofibers in between the source and drain electrodes patterned on a thin, flexible polyethylene terephthalate (PET) substrate. MWCNT-ZnO nanofibers are synthesized via the electrospinning technique followed by a calcination process...
May 18, 2017: Analyst
https://www.readbyqxmd.com/read/28513212/an-optical-fiber-based-smart-textile-smart-socks-to-manage-biomechanical-risk-factors-associated-with-diabetic-foot-amputation
#14
Bijan Najafi, Hooman Mohseni, Gurtej S Grewal, Talal K Talal, Robert A Menzies, David G Armstrong
OBJECTIVE: This study aimed to validate a smart-textile based on fiber-optics for simultaneous measurement of plantar temperature, pressure, and joint angles in patients with diabetic peripheral neuropathy (DPN). METHODS: After in-vitro validation in the laboratory, 33 eligible subjects with DPN were recruited (age: 58 ± 8 years, BMI: 31.5 ± 8 kg/m(2)) for assessing plantar pressure and temperature during habitual gait-speed in a clinical-setting. All participants were asked to walk at their habitual speed while wearing a pair of sensorized socks made from highly flexible fiber optics (SmartSox)...
May 1, 2017: Journal of Diabetes Science and Technology
https://www.readbyqxmd.com/read/28511689/harnessing-interactive-technologies-to-improve-health-outcomes-in-juvenile-idiopathic-arthritis
#15
REVIEW
Andrea Coda, Dean Sculley, Derek Santos, Xavier Girones, Lucie Brosseau, Derek R Smith, Joshua Burns, Keith Rome, Jane Munro, Davinder Singh-Grewal
BACKGROUND: Children and adolescents with Juvenile Idiopathic Arthritis (JIA) typically have reduced physical activity level and impaired aerobic and anaerobic exercise capacity when compared to their non-JIA counterparts. Low intensity exercise regimens appear to be safe in children with JIA and may results in improvements in overall physical function. Poor adherence to paediatric rheumatology treatment may lead to negative clinical outcomes and possibly increased disease activity. This includes symptoms such as pain, fatigue, quality of life, longer term outcomes including joint damage, as well as increase of healthcare associated costs...
May 16, 2017: Pediatric Rheumatology Online Journal
https://www.readbyqxmd.com/read/28509691/development-of-glucose-responsive-smart-insulin-systems
#16
Nischay K Rege, Nelson F B Phillips, Michael A Weiss
PURPOSE OF REVIEW: The complexity of modern insulin-based therapy for type I and type II diabetes mellitus and the risks associated with excursions in blood-glucose concentration (hyperglycemia and hypoglycemia) have motivated the development of 'smart insulin' technologies (glucose-responsive insulin, GRI). Such analogs or delivery systems are entities that provide insulin activity proportional to the glycemic state of the patient without external monitoring by the patient or healthcare provider...
May 15, 2017: Current Opinion in Endocrinology, Diabetes, and Obesity
https://www.readbyqxmd.com/read/28508991/digital-stethoscopes-compared-to-standard-auscultation-for-detecting-abnormal-paediatric-breath-sounds
#17
Ajay C Kevat, Anaath Kalirajah, Robert Roseby
Our study aimed to objectively describe the audiological characteristics of wheeze and crackles in children by using digital stethoscope (DS) auscultation, as well as assess concordance between standard auscultation and two different DS devices in their ability to detect pathological breath sounds. Twenty children were auscultated by a paediatric consultant doctor and digitally recorded using the Littman™ 3200 Digital Electronic Stethoscope and a Clinicloud™ DS with smart device. Using spectrographic analysis, we found those with clinically described wheeze had prominent periodic waveform segments spanning expiration for a period of 0...
May 16, 2017: European Journal of Pediatrics
https://www.readbyqxmd.com/read/28508810/timed-up-and-go-device-for-unsupervised-functional-assessment-of-elderly-patients
#18
Andreas Ziegl, Robert Modre-Osprian, Alberto Sánchez, Markus Falgenhauer, Peter Kastner, Günter Schreier
Functional evaluation of elderly patients is one key component in a comprehensive Geriatric Assessment. The increased workload and high costs associated to close and continuous monitoring in clinical settings may be counterbalanced by the application of ICT-supported remote follow-up. Although clinical parameters and questionnaires can be supported with smartphones and smart gadgets, physical performance trials pose a challenge for community-based approaches with difficulties arising from setting up trials, the lack of guidance and supervision...
2017: Studies in Health Technology and Informatics
https://www.readbyqxmd.com/read/28503917/a-smart-cooling-recovery-flexible-zinc-battery-with-thermoreversible-hydrogel-electrolyte
#19
Jingwen Zhao, Keval K Sonigara, Jiajia Li, Jian Zhang, Bingbing Chen, Jianjun Zhang, Saurabh S Soni, Xinhong Zhou, Guanglei Cui, Liquan Chen
Flexible batteries are essential for wearable electronic devices. To meet practical application, it is needed to be mechanically robust and stable. However, strong or multiple bending may sever the interfacial contact between electrode and electrolyte, causing capacity fading or even battery failure. Herein we present a new "cooling-recovery" concept for flexible batteries, which involves a temperature-sensitive sol-gel transition behavior of the thermoreversible polymer hydrogel electrolyte. Once batteries suffered from strong mechanical stresses, a simple cooling process can refresh the electrode-electrolyte interface...
May 14, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28503062/contraction-sensing-with-smart-braid-mckibben-muscles
#20
Wyatt Felt, Khai Yi Chin, C David Remy
The inherent compliance of soft fluidic actuators makes them attractive for use in wearable devices and soft robotics. Their flexible nature permits them to be used without traditional rotational or prismatic joints. Without these joints, however, measuring the motion of the actuators is challenging. Actuator-level sensors could improve the performance of continuum robots and robots with compliant or multi-degree-of-freedom joints. We make the reinforcing braid of a pneumatic artificial muscle (PAM or McKibben muscle) "smart" by weaving it from conductive, insulated wires...
June 2016: IEEE/ASME Transactions on Mechatronics
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