PubMed Journals Articles About "Wearable Cooling Heating Patch Could Serve Personal Thermostat" RSS

04:37 EDT 17th June 2019 | BioPortfolio

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Showing "Wearable Cooling Heating Patch Could Serve Personal Thermostat" PubMed Articles 1–25 of 4,600+

A wearable polyethylene/polyamide composite fabric for passive human body cooling.

Personal cooling technologies (PCTs) locally control the temperature of an individual instead of a whole building and are thus energy saving. However, most PCTs still consume energy and are heavy in weight, restricting their application among ordinary beings. To achieve personal thermal comfort and no energy consumption on hot summer days, we designed a bilayer structure fabric with high thermal comfort by increasing the dissipation of human thermal radiation and reducing solar energy absorption simultaneou...

Clinical feasibility of a wearable, conformable sensor patch to monitor motor symptoms in Parkinson's disease.

Clinical assessment of motor symptoms in Parkinson's disease (PD) is subjective and may not reflect patient real-world experience. This two-part pilot study evaluated the accuracy of the NIMBLE wearable biosensor patch (containing an accelerometer and electromyography sensor) to record body movements in clinic and home environments versus clinical measurement of motor symptoms.

An integrated smart heating control system based on sandwich-structural textiles.

Integrated fabrics with smart heating control system (HCS) are attracted in warming and thermotherapy for human healthcare management. Metal nanofibers (NFs) networks with high flexibility, conductivity and gas permeability are ideal functional materials for wearable electronics. Herein, a novel sandwich-structural (Ag NFs/fabrics/Pt NFs) textile for HCS is constructed, where Ag NF network film was functioned as a wearable heater and Pt NF network arrays were functioned as wearable temperature sensors. Cond...

Thermal induced deflection of a porcelain-zirconia bilayer: Influence of cooling rate.

To determine the thermal expansion of a porcelain (VM9) and tetragonal zirconia (Y-TZP) as well as the deflection upon re-heating and cooling of a bilayer fabricated from these two materials after slow and rapid cooling during initial fabrication.

Cavity Cooling of a Levitated Nanosphere by Coherent Scattering.

We report three-dimensional (3D) cooling of a levitated nanoparticle inside an optical cavity. The cooling mechanism is provided by cavity-enhanced coherent scattering off an optical tweezer. The observed 3D dynamics and cooling rates are as theoretically expected from the presence of both linear and quadratic terms in the interaction between the particle motion and the cavity field. By achieving nanometer-level control over the particle location we optimize the position-dependent coupling and demonstrate a...

A Low Power Cardiovascular Healthcare System with Cross-layer Optimization from Sensing Patch to Cloud Platform.

Nowadays, cardiovascular disease is still one of the primary diseases that limit humans' lifespan. To address this challenge, this work reports an Internet of Medical Things (IoMT)-based cardiovascular healthcare system with cross-layer optimization from sensing patch to cloud platform. A wearable ECG patch with a customized System-on-Chip (SoC) has been designed, featuring miniaturized footprint, low power consumption, and embedded signal processing capability. Meanwhile the patch holds effective connectiv...

Owning Ethical Innovation: Claims about Commercial Wearable Brain Technologies.

The wearable neurotechnology market targets consumers with promises of cognitive benefit and personal wellness. Scientific evidence is essential to substantiate claims about utility, safety, and efficacy and for informed choice and public trust.

Support for antibiotic prophylaxis during targeted temperature management: heating up or cooling down?

Heating methods generate different amounts of persistent free radicals from unsaturated fatty acids.

Three unsaturated fatty acids (UFAs), namely linolenic acid, linoleic acid and oleic acid, were selected to investigate the generation of persistent free radicals during heating and reheating by stove or microwave. Stove-heating and -reheating generated significant EPR signals, and quickly dissipated during cooling. When the stove-heated samples were reheated by microwave, the EPR signals were further enhanced and lasted for over 2 h. FTIR characterization showed the breaking of CC and CO bonds and LF-NMR...

Stretchable and Highly Sensitive Braided Composite Yarn@Polydopamine@Polypyrrole for Wearable Applications.

Flexible wearable devices for various applications have attracted research attention in recent years. To date, it is still a big challenge to fabricate strain sensors with a large workable strain range while maintaining their high sensitivity. Herein, we report the fabrication of highly sensitive wearable strain sensors from braided composite yarns (BYs) by in-situ polymerization of polypyrrole (PPy) on the surface of yarns after polydopamine templating (BYs-PDA). The electromechanical performance and strai...

Personal exposure to PM-bound organic species from domestic solid fuel combustion in rural Guanzhong Basin, China: Characteristics and health implication.

Domestic solid fuels combustion produces a mass of fine particulate matter (PM). PM-bound organics, including polycyclic aromatic hydrocarbons (PAHs), oxygenated-PAHs (OPAHs), phthalate esters (PAEs) and hopanes, were quantified in indoor, outdoor and personal exposure samples collected in rural Guanzhong Basin, China. The average concentration of total quantified PAHs in personal exposure samples was 310 ± 443 ng m, 1.5 times of those of indoor (211 ± 120 ng m) and outdoor (189 ± 115...

In vivo temperature-sensitive drug release system trigged by cooling using low-melting-point microcrystalline wax.

Temperature-sensitive formulations are attractive controlled-release formulations, which release an incorporated drug by changes in body temperature induced by external temperature stimulation. Recently, it has been reported that wax matrix (WM) particles composed of a low-melting-point microcrystalline wax (MCW) released only a small amount of the drug at 37 °C, whereas faster drug release occurred at 25 °C. In this study, temperature-sensitive formulations composed of low-melting-point MCW that rele...

Colloidal properties of protein complexes formed in β-casein concentrate solutions as influenced by heating and cooling in the presence of different solutes.

Monomeric bovine β-casein self-associates into micelles under appropriate conditions of protein concentration, serum composition and temperature. The present study investigated self-association characteristics of a β-casein concentrate (BCC) prepared from milk at pilot-scale using membrane filtration. The BCC had a casein:whey protein ratio of 77:23, with ∼95% of casein consisting of β-casein, and the remainder being mostly κ-CN. BCC was reconstituted to 1.2% protein (a typical level in infant formula...

Materials and Designs for Wearable Photodetectors.

Photodetectors (PDs), as an indispensable component in electronics, are highly desired to be flexible to meet the trend of next-generation wearable electronics. Unfortunately, no in-depth reviews on the design strategies, material exploration, and potential applications of wearable photodetectors are found in literature to date. Thus, this progress report first summarizes the fundamental design principles of turning "hard" photodetectors "soft," including 2D (polymer and paper substrate-based devices) and 1...

Practical Torso Cooling During Soccer-Specific Exercise in the Heat.

Precooling and midevent cooling of the torso using cooling vests can improve exercise performance in the heat with or without physiological changes; however, the effects of such cooling during intermittent exercise in the heat are unknown.

28 days follow up of patch-test reactions to p-phenylenediamine and p-phenylenediamine dihydrochloride: a multicenter study on behalf of EECDRG.

It is discussed if routinely patch testing p-phenylenediamine (PPD) 1.0 % petrolatum is safe due to the risk of patch test sensitization. Late appearing patch test reactions may reflect patch test sensitization, but may also be due to a low degree of pre-existing sensitization.

Heating-induced Contraction in Airways Smooth Muscle: A Possible Causative Factor of Exercise-Induced Bronchoconstriction.

Asthmatic patients often suffer from bronchoconstriction or asthma following breathing hot air or exposure to exercise due to raises the core body temperature. However, the direct effect of heating airways has not been studied yet. The aim of this study is to investigate the effect of heating on tracheal and bronchiolar smooth muscles. Isolated ovine tracheal strips and bronchiolar segments preparations were suspended in organ baths containing Krebs' solution for isometric tension recording. Tissues respons...

On optimal and near-optimal shapes of external shading of windows in apartment buildings.

We studied previously optimal shape of external shading of windows in a cellular office with an outer edge modeled by a non-uniform rational basis spline (NURBS) curve whose control points were placed uniformly around western fin, overhang and eastern fin of the window, and whose depths were allowed to vary independently. We observed there that for each climate considered in the study there exists a shading shape close to the optimal one, but with a substantially simpler structure of control points for the ...

Fully Stretchable Capillary Microfluidics-integrated Nanoporous Gold Electrochemical Sensor for Wearable Continuous Glucose Monitoring.

Biosensor systems for wearable continuous monitoring are desired to be developed into conformal patch platforms. However, developing such patches is very challenging owing to the difficulty of imparting materials and components with both high stretchability and high performance. Herein we report a fully stretchable microfluidics-integrated glucose sensor patch comprised of an omnidirectionally stretchable nanoporous gold (NPG) electrochemical biosensor and a stretchable passive microfluidic device. A highly...

Radiative cooling of cationic carbon clusters, C, N = 8, 10, 13-16.

The radiative cooling of highly excited carbon cluster cations of sizes N = 8, 10, 13-16 has been studied in an electrostatic storage ring. The cooling rate constants vary with cluster size from a maximum at N = 8 of 2.6 × 104 s-1 and a minimum at N = 13 of 4.4 × 103 s-1. The high rates indicate that photon emission takes place from electronically excited ions, providing a strong stabilizing cooling of the molecules.

Non-invasive Flexible and Stretchable Wearable Sensors with Nano-based Enhancement for Chronic Disease Care.

Advances have been made in flexible and stretchable electronics, functional nanomaterials, and micro/nano manufacturing in recent years. These advances have accelerated the development of wearable sensors. Wearable sensors with excellent flexibility, stretchability, durability and sensitivity, shows attractive application prospects in the next generation of personal devices for chronic dis-ease care. Flexible and stretchable wearable sensors play an important role in endowing chronic disease care systems wi...

Evaluation of the fentanyl patch-for-patch program in Ontario, Canada.

Rising use of prescription opioids is a major public health concern associated with increased risk of mortality worldwide. Fentanyl, a synthetic opioid available in patch form, is particularly concerning given its high potency. To curb the misuse and diversion of fentanyl patches, a Patch-for-Patch (P4P) program was implemented in some counties in Ontario between 2012 and 2015. The program requires that patients prescribed fentanyl must return used patches to the pharmacy before receiving more patches.

Testing a revised inlet for the personal dust monitor.

A person-wearable dust monitor that provides nearly real-time, mass-based readings of respirable dust was developed for use in underground coal mines. This personal dust monitor (PDM) combined dust sampling instrumentation with a cap lamp (and battery) into one belt-wearable unit, with the air inlet mounted on the cap lamp. However, obsolescence of belt-carried cap lamp and batteries in coal mining ensued and led end users to request that the cap lamp and battery be removed from the PDM. Removal of these co...

Successful Management of Severe Exertional Heat Stroke with Endovascular Cooling After Failure of Standard Cooling Measures.

Exertional heat stroke (EHS) is a potentially life-threatening emergency requiring rapid reduction in core body temperature. Methods of cooling include cold water immersion, ice packs, cold water lavage, and chilled saline, among others. We report a case of EHS successfully cooled using an endovascular cooling device after traditional cooling methods failed to reduce core body temperature.

A comparative study on the environmental impact of greenhouses: A probabilistic approach.

The aim of this study is to investigate the most important drivers of environmental impacts and identify the influence of parameters on the uncertainty of the environmental impacts in various climate zones and future climate scenarios. We couple a combined greenhouse energy demand-yield simulation tool with a life cycle assessment to identify the drivers for greenhouse energy, water and CO demand as well as yield production. Environmental impacts are evaluated using the methods of IPPC for assessing climate...

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