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https://www.readbyqxmd.com/read/29470408/flexible-stretchable-sensors-for-wearable-health-monitoring-sensing-mechanisms-materials-fabrication-strategies-and-features
#1
REVIEW
Yan Liu, Hai Wang, Wei Zhao, Min Zhang, Hongbo Qin, Yongqiang Xie
Wearable health monitoring systems have gained considerable interest in recent years owing to their tremendous promise for personal portable health watching and remote medical practices. The sensors with excellent flexibility and stretchability are crucial components that can provide health monitoring systems with the capability of continuously tracking physiological signals of human body without conspicuous uncomfortableness and invasiveness. The signals acquired by these sensors, such as body motion, heart rate, breath, skin temperature and metabolism parameter, are closely associated with personal health conditions...
February 22, 2018: Sensors
https://www.readbyqxmd.com/read/29470390/preparation-of-fish-skin-gelatin-based-nanofibers-incorporating-cinnamaldehyde-by-solution-blow-spinning
#2
Fei Liu, Furkan Türker Saricaoglu, Roberto J Avena-Bustillos, David F Bridges, Gary R Takeoka, Vivian C H Wu, Bor-Sen Chiou, Delilah F Wood, Tara H McHugh, Fang Zhong
Cinnamaldehyde, a natural preservative that can non-specifically deactivate foodborne pathogens, was successfully incorporated into fish skin gelatin (FSG) solutions and blow spun into uniform nanofibers. The effects of cinnamaldehyde ratios (5-30%, w / w FSG) on physicochemical properties of fiber-forming emulsions (FFEs) and their nanofibers were investigated. Higher ratios resulted in higher values in particle size and viscosity of FFEs, as well as higher values in diameter of nanofibers. Loss of cinnamaldehyde was observed during solution blow spinning (SBS) process and cinnamaldehyde was mainly located on the surface of resultant nanofibers...
February 22, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29469164/heart-rate-variability-affected-by-radiofrequency-electromagnetic-field-in-adolescent-students
#3
Jakub Misek, Igor Belyaev, Viera Jakusova, Ingrid Tonhajzerova, Jan Barabas, Jan Jakus
This study examines the possible effect of radiofrequency (RF) electromagnetic fields (EMF) on the autonomic nervous system (ANS). The effect of RF EMF on ANS activity was studied by measuring heart rate variability (HRV) during ortho-clinostatic test (i.e., transition from lying to standing and back) in 46 healthy grammar school students. A 1788 MHz pulsed wave with intensity of 54 ± 1.6 V/m was applied intermittently for 18 min in each trial. Maximum specific absorption rate (SAR10 ) value was determined to 0...
February 22, 2018: Bioelectromagnetics
https://www.readbyqxmd.com/read/29463144/hypothermia-detection-in-low-birth-weight-neonates-using-a-novel-bracelet-device
#4
Vasanthan Tanigasalam, B Vishnu Bhat, B Adhisivam, Bharathi Balachander, Harichandra Kumar
OBJECTIVE: To assess the diagnostic accuracy of a novel hypothermia monitoring and alert bracelet device (BEMPU Bracelet) in low birth weight (LBW) neonates weighing less than 2000 grams. DESIGN: This was a controlled prospective study. SETTING: This study was done in the step-down nursery of a tertiary level newborn unit of a major teaching hospital in India. METHODS: Eligible cases fulfilling inclusion criteria were given BEMPU Bracelets for a period of 24 hours...
February 20, 2018: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29461870/randomized-double-blind-crossover-study-of-the-adhesiveness-of-two-formulations-of-rotigotine-transdermal-patch-in-patients-with-parkinson-s-disease
#5
Jan-Peer Elshoff, Lars Bauer, Nadine Goldammer, Marga Oortgiesen, Hanna Pesch, Lars Timmermann
OBJECTIVE: In patch-based transdermal drug delivery, adhesiveness is critical for safe and effective treatment, especially in Parkinson's disease (PD) where excessive sweating is common. This study compared the adhesiveness of two transdermal patch formulations of rotigotine (improved room temperature-stable [PR2.3.1/Treatment A] and intermediate cold storage product [PR2.1.1/Treatment B]), using the largest patch size (40 cm2 ). METHODS: PD0018 (NCT02230904) was a multicenter, randomized, double-blind, crossover study...
February 20, 2018: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/29461130/treatment-of-facial-telangiectasia-with-narrow-band-intense-pulsed-light-in-chinese-patients
#6
Huihui Gan, Baishuang Yue, Yan Wang, Zhong Lu
OBJECTIVE: To evaluate the efficacy and safety of narrow-band intense pulsed light (DPL) in treating facial telangiectasia. METHOD: Thirty patients with facial telangiectasia underwent five sessions of treatment with DPL (500 nm~600 nm) at 4-week interval. The erythema index (EI), temperature, transepidermal water loss (TEWL), and lightness of the skin (L) were measured before each treatment session and at each follow-up. RESULT: Thirty cases completed treatment and follow-ups...
February 20, 2018: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
https://www.readbyqxmd.com/read/29459837/effects-of-relaxing-and-arousing-music-during-imagery-training-on-dart-throwing-performance-physiological-arousal-indices-and-competitive-state-anxiety
#7
Garry Kuan, Tony Morris, Yee Cheng Kueh, Peter C Terry
Music that is carefully selected to match the requirements of activities and the characteristics of individuals has been shown to produce significant impacts on performance enhancement (Priest et al., 2004). There is also evidence that music can enhance imagery (Grocke and Wigram, 2007), although few studies have investigated the effects of music on imagery in the context of sport skills. In the present study, the effects of relaxing and arousing music during imagery on dart-throwing performance, physiological arousal indices, and competitive state anxiety, were investigated among 63 novice dart throwers...
2018: Frontiers in Psychology
https://www.readbyqxmd.com/read/29454952/probing-the-interaction-of-the-phytochemical-6-gingerol-from-the-spice-ginger-with-dna
#8
Poovvathingal Haris, Varughese Mary, Chellappanpillai Sudarsanakumar
6-Gingerol [5-hydroxy-1-(4-hydroxy-3-methoxyphenyl) decan-3-one], the bio-active ingredient of the popular Indian spice ginger (Zingiber officinale Roscoe), is well-known for its pharmacological and physiological actions. The potent antioxidant, antiemetic, antiulcer, antimicrobial, analgesic, hypoglycemic, antihypertensive, antihyperlipidemic, immunostimulant, anti-inflammatory, cardiotonic, and cancer prevention activities of 6-Gingerol has been investigated and explored. 6-Gingerol is a good candidate for the treatment of various cancers including prostrate, pancreatic, breast, skin, gastrointestinal, pulmonary, and renal cancer...
February 15, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29450933/face-cooling-reveals-a-relative-inability-to-increase-cardiac-parasympathetic-activation-during-passive-heat-stress
#9
Zachary J Schlader, Morgan C O'Leary, James R Sackett, Blair D Johnson
We tested the hypothesis that passive heat stress attenuates the increase in cardiac parasympathetic stimulation, vascular resistance, and blood pressure evoked by face cooling. During normothermia and when intestinal temperature was elevated by 1.0 ± 0.2°C, eleven healthy young adults underwent 3 min of face cooling. Face cooling was accomplished by placing a 2.5 L bag of ice water (0 ± 0°C) over the cheeks, eyes, and forehead. Primary variables included forehead skin temperature, mean arterial pressure, and systemic, forearm and cutaneous vascular resistances...
February 15, 2018: Experimental Physiology
https://www.readbyqxmd.com/read/29448500/morphological-feature-of-pluronic-f127-and-its-application-in-burn-treatment
#10
Tran Huu Dung, Le Thu Huong, Hoon Yoo
The morphological features of pluronic F127 at various concentrations were investigated and 20% aqueous pluronic F127 solution was chosen for the preparation of biomembrane. The pluronic solution was mixed with appropriate concentration of excipients such as PVA, Povidon S630, PG, Nipagin, Neomycin and Panthenol. The prepared pluronic F127 was thermosensitive, a liquid phase at low temperatures (≤10 °C) but converting into gel at temperatures above 20 °C, and formed stable biomembrane at 37 °C. The neomycin impregnated pluronic membrane suppressed the bacterial growth on agar plate by the sustained release of neomycin...
February 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29447045/a-four-channel-electrical-impedance-spectroscopy-module-for-cortisol-biosensing-in-sweat-based-wearable-applications
#11
Devangsingh Sankhala, Sriram Muthukumar, Shalini Prasad
A four-channel electrochemical impedance spectroscopy (EIS) analyzer module has been demonstrated on flexible chemi-impedance sensors fabricated with gold electrodes for wearable applications. The module can perform time division multiplexed (TDM) impedance measurements on four sensors at 1 kHz. In this work, we characterize the system for the detection of cortisol in an ultralow volume (1-3 µL) of perspired human sweat, sensor performance, and effects during continuous cortisol dosing and with pH and temperature variations expected on the surface of the skin that would be representative of use conditions as seen by a wearable device...
February 1, 2018: SLAS Technology
https://www.readbyqxmd.com/read/29442950/flexible-and-compressible-temperature-sensors-based-on-hierarchically-buckled-carbon-nanotube-rubber-bi-sheath-core-fibers
#12
Kunkun Wu, Zhongsheng Liu, Haibao Lin, Run Wang, Qu Yin, Wei Lv, Jian Su, Ningyi Yuan, Jianhua Qiu, Jianning Ding, Raquel Ovalle-Robles, Kanzan Inoue, Zunfeng Liu
Flexible and compressible temperature sensors are highly desired for artificial skin and epidermal electronics. Here we demonstrated a flexible and compressible resistive temperature sensor using hierarchically buckled carbon nanotube/rubber bi-sheath-core structure (a buckled carbon nanotube outer sheath and a buckled rubber inner sheath wrapped around a rubber fiber core). When heated, lateral contacts of the adjacent buckles increase, resulting in electrical resistance decrease and serving as highly sensitive temperature sensors...
April 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29441614/characterization-of-oily-mature-skin-by-biophysical-and-skin-imaging-techniques
#13
M O de Melo, P M B G Maia Campos
BACKGROUND: The skin is a complex biological system and may suffer change according to the environmental factors, as higher temperatures can increase sebum excretion, presenting oiliness and acne. These alterations can persist during the aging and provoke more changes in aged skin. In this study we evaluated the mature oily skin characteristics using biophysical and skin imaging techniques. MATERIAL AND METHODS: Sixty healthy female subjects, aged between 39 and 55 years old were recruited and separated into 2 groups according to their skin type: normal/dry and oily skin...
February 13, 2018: Skin Research and Technology
https://www.readbyqxmd.com/read/29441024/skin-temperature-measurement-using-contact-thermometry-a-systematic-review-of-setup-variables-and-their-effects-on-measured-values
#14
REVIEW
Braid A MacRae, Simon Annaheim, Christina M Spengler, René M Rossi
Background: Skin temperature ( T skin ) is commonly measured using T skin sensors affixed directly to the skin surface, although the influence of setup variables on the measured outcome requires clarification. Objectives: The two distinct objectives of this systematic review were (1) to examine measurements from contact T skin sensors considering equilibrium temperature and temperature disturbance, sensor attachments, pressure, environmental temperature, and sensor type, and (2) to characterise the contact T skin sensors used, conditions of use, and subsequent reporting in studies investigating sports, exercise, and other physical activity...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29439856/the-optimal-age-for-epicutaneous-sensitization-following-tape-stripping-in-balb-c-mice
#15
Masato Tamari, Keisuke Orimo, Kenichiro Motomura, Ken Arae, Akio Matsuda, Susumu Nakae, Hirohisa Saito, Hideaki Morita, Kenji Matsumoto
BACKGROUND: Direct contact of food proteins with eczematous lesions is thought to be the main cause of epicutaneous sensitization. To further investigate the development and pathogenesis of food allergy in vivo, a good mouse model of epicutaneous sensitization is needed. However, a fundamental problem in that regard is that the optimal age for epicutaneous sensitization of mice is unknown. In this study, we attempted to elucidate that optimal age. METHODS: Dorsal skin of wild-type BALB/c female mice (1, 3, 8 and 24 weeks old) was shaved, depilated and tape-stripped...
February 10, 2018: Allergology International: Official Journal of the Japanese Society of Allergology
https://www.readbyqxmd.com/read/29438568/haemodynamic-assessment-and-support-in-sepsis-and-septic-shock-in-resource-limited-settings
#16
David Misango, Rajyabardhan Pattnaik, Tim Baker, Martin W Dünser, Arjen M Dondorp, Marcus J Schultz
Background: Recommendations for haemodynamic assessment and support in sepsis and septic shock in resource-limited settings are largely lacking. Methods: A task force of six international experts in critical care medicine, all of them members of the Global Intensive Care Working Group of the European Society of Intensive Care Medicine and with extensive bedside experience in resource-limited intensive care units, reviewed the literature and provided recommendations regarding haemodynamic assessment and support, keeping aspects of efficacy and effectiveness, availability and feasibility and affordability and safety in mind...
February 9, 2018: Transactions of the Royal Society of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29436214/three-dimensional-graphene-structure-for-healable-flexible-electronics-based-on-diels-alder-chemistry
#17
Jinhui Li, Qiang Liu, Derek Ho, Songfang Zhao, Shuwen Wu, Lei Ling, Fei Han, Xinxiu Wu, Guoping Zhang, Rong Sun, Ching-Ping Wong
Wearable electronics with excellent stretchability and sensitivity have emerged as a very promising field with wide applications such as e-skin and human motion detection. Although three-dimensional (3D) graphene structures (GS) have been reported for high performance strain sensors, challenges still remain such as the high cost of GS preparation, low stretchability, as well as the lack of ability to heal itself. In this paper, we reported a novel self-healing flexible electronic with 3D GS based on Diels-Alder (DA) chemistry...
February 13, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29434728/chitosan-temperature-sensitive-gel-loaded-with-drug-microspheres-has-excellent-effectiveness-biocompatibility-and-safety-as-an-ophthalmic-drug-delivery-system
#18
Xiaoying Kong, Wenhua Xu, Cuiping Zhang, Wei Kong
In the present study, a temperature-sensitive gel composed of chitosan, carboxymethyl chitosan and glycerophosphate was prepared and loaded with chitosan microspheres encapsulating levofloxacin. The bioavailability of levofloxacin and the safety of this novel opthalmic drug delivery formulation were evaluated. Levofloxacin chitosan microspheres were prepared using the ionic gelation method, and the particle size and entrapment rate were determined. The morphology of the microspheres was observed by scanning electron microscopy...
February 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29433764/cold-intolerance-after-nerve-injury
#19
Christine B Novak
Cold intolerance after nerve injury can be severe and has been associated with high levels of pain and disability. This article provides an overview of the assessment and nonoperative management of cold-induced symptoms after peripheral nerve injury. A comprehensive evaluation should include both objective measures such as skin temperatures and subjective tools to assess the patient's perspective and impact of the symptoms. Management of the patient with cold intolerance remains challenging and should include adaptive strategies, warming interventions, and desensitization conditioning programs to minimize cold-induced pain and hyperresponses...
February 9, 2018: Journal of Hand Therapy: Official Journal of the American Society of Hand Therapists
https://www.readbyqxmd.com/read/29433116/-mr-guided-focused-ultrasound
#20
Hideki Mochizuki, Noriaki Hattori
Since the middle of the 20th century and in order to treat neurological diseases, clinicians have proposed the use of ultrasound, instead of skin incision or trepanation, when performing intracranial thermocoagulation. However, focusing ultrasound intracranially with high precision was technically difficult until recent technological developments. Specifically, advancements in ultrasound phased-array transducers have eliminated the need for a craniotomy, and progress in magnetic resonance (MR) imaging has allowed the real-time measurement of intracranial temperature...
February 2018: Brain and Nerve, Shinkei Kenkyū No Shinpo
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