keyword
https://read.qxmd.com/read/38518116/highly-stretchable-self-healing-and-sensitive-e-skins-at-78-%C3%A2-c-for-polar-exploration
#21
JOURNAL ARTICLE
Kai Yang, Qingsi Li, Shu Tian, Jiancheng Wang, Guangming Lu, Hongshuang Guo, Sijia Xu, Lei Zhang, Jing Yang
Ultralow temperature-tolerant electronic skins (e-skins) can endow polar robots with tactile feedback for exploring in extremely cold polar environments. However, it remains a challenge to develop e-skins that enable sensitive touch sensation and self-healing at ultralow temperatures. Herein, we describe the development of a sensitive robotic hand e-skin that can stretch, self-heal, and sense at temperatures as low as -78 °C. The elastomeric substrate of this e-skin is based on poly(dimethylsiloxane) supramolecular polymers and multistrength dynamic H-bonds, in particular with quadruple H-bonding motifs (UPy)...
March 22, 2024: Journal of the American Chemical Society
https://read.qxmd.com/read/38517766/simulation-guided-development-of-advanced-pid-control-algorithm-for-skin-cooling-in-radiofrequency-lipolysis
#22
JOURNAL ARTICLE
Binyu Wang, Lianru Zang, Yingxi Lu, Mengying Zhan, Tingting Sun, Yu Zhou, Chengli Song
BACKGROUND: The clinical outcomes of bipolar radiofrequency (RF) lipolysis, a prevalent non-invasive fat reduction procedure, hinge on the delicate balance between effective lipolysis and patient safety, with skin overheating and subsequent tissue damage as primary concerns. OBJECTIVE: This study aimed to investigate a novel bipolar radiofrequency lipolysis technique, safeguarding the skin through an innovative PID temperature control algorithm. METHODS: Utilizing COMSOL Multiphysics simulation software, a two-dimensional fat and skin tissue model was established, simulating various PID temperature control schemes...
February 21, 2024: Bio-medical Materials and Engineering
https://read.qxmd.com/read/38516144/the-clinical-characteristics-and-risk-factors-for-necrotizing-soft-tissue-infection-in-children
#23
JOURNAL ARTICLE
Jing Liu, Jigang Chen, Yanni Wang, Hongyan Qi, Jing Yu
IMPORTANCE: Necrotizing soft tissue infection (NSTI) is a serious infectious disease. However, the early clinical manifestations and indicators of NSTI in children are still unclear. OBJECTIVE: The purpose of this study was to analyze the clinical characteristics and risk factors of NSTI in pediatric patients. METHODS: A total of 127 children with skin and soft tissue infection (SSTI) were treated at our hospital and divided into two groups: the NSTI group and the non-NSTI group, based on their discharge diagnosis from January 2011 to December 2022...
March 2024: Pediatric Investigation
https://read.qxmd.com/read/38515684/smartphone-based-thermography-in-flap-surgery-a-systematic-review-and-meta-analysis-of-perforator-identification
#24
JOURNAL ARTICLE
Loïc Van Dieren, Haïzam Oubari, Louise Callens, Yanis Berkane, Tom Quisenaerts, François Saget, Wiebren Tjalma, Gunther Steenackers, Curtis L Cetrulo, Alexandre G Lellouch, Filip Thiessen Ef
BACKGROUND: Thermography can be used in pre-operative planning of free perforator flap surgeries. Thermography assesses skin temperature by measuring the quantity of infrared radiation observed. In this meta-analysis, authors assess the sensitivity of smartphone-based thermal imaging (SBTI) in the detection of perforators and analyze the difference between static and dynamic imaging. MATERIALS AND METHODS: Authors followed the PRISMA guidelines for systematic reviews and meta-analyses...
March 30, 2024: Heliyon
https://read.qxmd.com/read/38514626/flexible-temperature-pressure-dual-sensor-based-on-3d-spiral-thermoelectric-bi-2-te-3-films
#25
JOURNAL ARTICLE
Hailong Yu, Zhenqing Hu, Juan He, Yijun Ran, Yang Zhao, Zhi Yu, Kaiping Tai
Dual-parameter pressure-temperature sensors are widely employed in personal health monitoring and robots to detect external signals. Herein, we develop a flexible composite dual-parameter pressure-temperature sensor based on three-dimensional (3D) spiral thermoelectric Bi2 Te3 films. The film has a (000l) texture and good flexibility, exhibiting a maximum Seebeck coefficient of -181 μV K-1 and piezoresistance gauge factor of approximately -9.2. The device demonstrates a record-high temperature-sensing performance with a high sensing sensitivity (-426...
March 21, 2024: Nature Communications
https://read.qxmd.com/read/38512776/diagnostic-accuracy-of-thermal-hydration-and-heart-rate-assessments-in-discriminating-positive-acute-kidney-injury-risk-following-physical-work-in-the-heat
#26
JOURNAL ARTICLE
Christopher L Chapman, Blair D Johnson, David P Hostler, Zachary J Schlader
Occupational heat stress increases the risk of acute kidney injury (AKI). This study presents a secondary analysis to generate novel hypotheses for future studies by investigating the diagnostic accuracy of thermal, hydration, and heart rate assessments in discriminating positive AKI risk following physical work in the heat in unacclimatized individuals. Unacclimatized participants ( n  = 13, 3 women, age: ∼23 years) completed four trials involving 2 h of exercise in a 39...
March 21, 2024: Journal of Occupational and Environmental Hygiene
https://read.qxmd.com/read/38509715/physiological-and-perceptual-responses-to-temperature-step-changes-between-cold-and-hot-environments
#27
JOURNAL ARTICLE
Qianqian Huang, Jian Li, Jun Li
Objectives. This study explores the effects of temperature steps on thermal responses to understand abrupt temperature shifts faced by heat-exposed workers during winter. Methods. Three temperature step changes with three phases (S20: 20-40-20 °C, S30: 10-40-10 °C, S40: 0-40-0 °C) were conducted. Phase 1 took 30 min, phase 2 took 60 min and phase 3 took 40 min. Eleven participants remained sedentary throughout the experiment, and physiological responses, thermal perception and self-reported health symptoms were recorded...
March 20, 2024: International Journal of Occupational Safety and Ergonomics: JOSE
https://read.qxmd.com/read/38508548/smart-janus-cotton-fabrics-prepared-via-mist-polymerization-for-moisture-and-thermal-management
#28
JOURNAL ARTICLE
Qingbo Xu, Xinyu Wang, Yong Wang, Yanyan Zhang
The construction of Janus structures on cotton fabrics can endow the fabrics with dynamic multifunctional properties. However, because of the large pores between fabric fibers, the formation of Janus structures by grafting different functional coatings on the double surfaces of cotton fabrics via dipping technology is difficult. To construct Janus structures on cotton fabrics, mist polymerization and "grafting-through" polymerization technologies were used to graft polylauryl methacrylate and a heat-shrinkable thermosensitive antibacterial polymer on the inside and outside surfaces of the cotton fabric, respectively...
March 18, 2024: International Journal of Biological Macromolecules
https://read.qxmd.com/read/38507934/exposure-to-ambient-temperature-and-heat-index-in-relation-to-dna-methylation-age-a-population-based-study-in-taiwan
#29
JOURNAL ARTICLE
Kuan-Chih Chiu, Ming-Shun Hsieh, Yen-Tsung Huang, Chen-Yu Liu
BACKGROUND: Climate change caused an increase in ambient temperature in the past decades. Exposure to high ambient temperature could result in biological aging, but relevant studies in a warm environment were lacking. We aimed to study the exposure effects of ambient temperature and heat index (HI) in relation to age acceleration in Taiwan, a subtropical island in Asia. METHODS: The study included 2,084 participants from Taiwan Biobank. Daily temperature and relative humidity data were collected from weather monitoring stations...
March 17, 2024: Environment International
https://read.qxmd.com/read/38504414/gastrointestinal-manifestations-seen-in-pediatric-patients-diagnosed-with-small-fiber-neuropathy
#30
JOURNAL ARTICLE
Shruti Nabar, Jenelle Fernandez, Vikram Prakash, Shaista Safder
OBJECTIVES: Small fiber neuropathy (SFN) affects the fibers involved in cutaneous and visceral pain and temperature sensation and are a crucial part of the autonomic nervous system. Autonomic dysfunction secondary to SFN and autoimmune receptor antibodies is being increasingly recognized, and gastrointestinal (GI) manifestations include constipation, early satiety, nausea, vomiting, and diarrhea. Enteric nervous system involvement may be a possible explanation of abnormal GI motility patterns seen in these patients...
March 2024: Journal of Pediatric Gastroenterology and Nutrition
https://read.qxmd.com/read/38503653/observation-of-non-hermitian-skin-effect-in-thermal-diffusion
#31
JOURNAL ARTICLE
Yun-Kai Liu, Pei-Chao Cao, Minghong Qi, Qiang-Kai-Lai Huang, Feng Gao, Yu-Gui Peng, Ying Li, Xue-Feng Zhu
The paradigm shift of Hermitian systems into the non-Hermitian regime profoundly modifies inherent property of the topological systems, leading to various unprecedented effects such as the non-Hermitian skin effect (NHSE). In the past decade, the NHSE has been demonstrated in quantum, optical and acoustic systems. Beside those wave systems, the NHSE in diffusive systems has not yet been observed, despite recent abundant advances in the study of topological thermal diffusion. In this work, we design a thermal diffusion lattice based on a modified Su-Schrieffer-Heeger model and demonstrate the diffusive NHSE...
March 2, 2024: Science Bulletin
https://read.qxmd.com/read/38502968/calcium-salt-enhanced-fiber-membrane-with-high-infrared-emission-and-hydrophilicity-for-efficient-passive-cooling
#32
JOURNAL ARTICLE
Yanshan Ju, Peng Yang, Jiajun He, Shaochun Tang
Radiative cooling fabrics have gained significant attention for their ability to enhance comfort without consuming extra energy. Nevertheless, sweat accumulation on the skin and diminishing cooling efficiency usually exist in the reported polymer cooling membranes. Herein, we report a universal method to obtain a calcium (Ca)-salt-enhanced fiber membrane with high infrared emission and hydrophilicity for efficient passive cooling and flame retardancy. The modification by Ca salts (including CaSiO3 , CaSO3 , and CaHPO4 ) with strong infrared emission results in an improvement in hygrothermal management ability, especially for moisture absorption and perspiration regulation in hot and humid environments...
March 19, 2024: ACS Applied Materials & Interfaces
https://read.qxmd.com/read/38502943/comparison-of-cryotherapy-performed-with-ice-or-gel-and-superficial-skin-cooling-of-older-women-a-randomized-crossover-clinical-trial
#33
JOURNAL ARTICLE
Kharine Dos Santos Maria Fachin, Daniela de Estéfani, Kelly Mônica Marinho E Lima, Daniela Pacheco Dos Santos Haupenthal, Alessandro Haupenthal
BACKGROUND AND PURPOSE: Cryotherapy is an affordable and popular treatment of soft tissue injuries, which can reduce inflammation and pain. Studies have specifically addressed young adults and athletes, and these findings have been extended to older adults in clinical practice. Aging is associated with changes in the skin, including collagen degradation, decreased fat layer thickness, and reduced blood flow, which can alter the skin response to stress. Because of age-related changes, there are concerns about the direct use of ice on the skin of older individuals...
March 19, 2024: Journal of Geriatric Physical Therapy
https://read.qxmd.com/read/38502324/evaluation-of-pulse-oximeter-at-the-nasal-septum-during-general-anesthesia-comparison-with-finger-oximeter
#34
JOURNAL ARTICLE
Yena Oh, Duk Kyung Kim, Dae Kyun Ryu, Ji Won Choi
PURPOSE: Though the finger is generally recommended for pulse oxygen saturation (SpO2 ) monitoring site, its reliability may be compromised in conditions of poor peripheral perfusion. Therefore, we compared the performance of nasal septum SpO2 monitoring with finger SpO2 monitoring relative to simultaneous arterial oxygen saturation (SaO2 ) monitoring in generally anesthetized patients. METHODS: In 23 adult patients, comparisons of SpO2 measured at the nasal septum and finger with simultaneous SaO2 were made at four time points during the 90 min study period...
March 19, 2024: Journal of Anesthesia
https://read.qxmd.com/read/38500350/variations-of-skin-thermal-diffusivity-on-different-skin-regions
#35
JOURNAL ARTICLE
Dardan Bajrami, Asier Zubiaga, Timon Renggli, Christoph Kirsch, Fabrizio Spano, Daniel Fehr, Patrick von Schulthess, Alisa Lindhorst-Peters, Stephanie Huber, Elisabeth Roider, René M Rossi, Alexander A Navarini, Mathias Bonmarin
BACKGROUND AND OBJECTIVE: Skin thermal diffusivity plays a crucial role in various applications, including laser therapy and cryogenic skin cooling.This study investigates the correlation between skin thermal diffusivity and two important skin parameters, melanin content and erythema, in a cohort of 102 participants. METHODS: An in-house developed device based on transient temperature measurement was used to assess thermal diffusivity at different body locations...
March 2024: Skin Research and Technology
https://read.qxmd.com/read/38498268/tree-based-machine-learning-to-identify-predictors-of-psoriasis-incidence-at-the-neighborhood-level-a-populational-study-from-quebec-canada
#36
JOURNAL ARTICLE
Anastasiya Muntyanu, Raymond Milan, Mohammed Kaouache, Julien Ringuet, Wayne Gulliver, Irina Pivneva, Jimmy Royer, Max Leroux, Kathleen Chen, Qiuyan Yu, Ivan V Litvinov, Christopher E M Griffiths, Darren M Ashcroft, Elham Rahme, Elena Netchiporouk
BACKGROUND: Psoriasis is a major global health burden affecting ~ 60 million people worldwide. Existing studies on psoriasis focused on individual-level health behaviors (e.g. diet, alcohol consumption, smoking, exercise) and characteristics as drivers of psoriasis risk. However, it is increasingly recognized that health behavior arises in the context of larger social, cultural, economic and environmental determinants of health. We aimed to identify the top risk factors that significantly impact the incidence of psoriasis at the neighborhood level using populational data from the province of Quebec (Canada) and advanced tree-based machine learning (ML) techniques...
March 18, 2024: American Journal of Clinical Dermatology
https://read.qxmd.com/read/38497418/evaluation-of-thermal-shock-therapy-for-reducing-pain-during-intense-pulsed-light-therapy-an-intrapatient-randomized-controlled-study
#37
JOURNAL ARTICLE
Yuanwen Zhang, Chuncheng Lu, Zhihui Yao, Yongxin Chen, Shilan Luo
BACKGROUND: Intense pulsed light (IPL) is used for the treatment and improvement of various skin issues. However, patients often experience local skin burning and pain after IPL treatment. Cooling and analgesic measures are indispensable. AIMS: To investigate the clinical effect of thermal shock therapy on pain relief and reduction of adverse reactions during IPL therapy. PATIENTS/METHODS: A total of 60 female patients with facial photoaging who received IPL therapy were enrolled in the study...
March 18, 2024: Journal of Cosmetic Dermatology
https://read.qxmd.com/read/38495973/mxene-cellulose-composite-cloth-for-integrated-functions-if-cloth-in-personal-heating-and-steam-generation
#38
JOURNAL ARTICLE
Jian Chang, Bo Pang, Hao Zhang, Kanglei Pang, Miao Zhang, Jiayin Yuan
UNLABELLED: Given the abundant solar light available on our planet, it is promising to develop an advanced fabric capable of simultaneously providing personal thermal management and facilitating clean water production in an energy-efficient manner. In this study, we present the fabrication of a photothermally active, biodegradable composite cloth composed of titanium carbide MXene and cellulose, achieved through an electrospinning method. This composite cloth exhibits favorable attributes, including chemical stability, mechanical performance, structural flexibility, and wettability...
2024: Adv Fiber Mater
https://read.qxmd.com/read/38492696/antibacterial-conductive-polyacrylamide-quaternary-ammonium-chitosan-hydrogel-for-electromagnetic-interference-shielding-and-strain-sensing
#39
JOURNAL ARTICLE
Tingting Zhao, Jianyu Zhou, Wanting Wu, Kunpeng Qian, Yan Zhu, Miao Miao, Xin Feng
The utilization of biomass-based conductive polymer hydrogels in wearable electronics holds great promise for advancing performance and sustainability. An interpenetrating network of polyacrylamide/2-hydroxypropyltrimethyl ammonium chloride chitosan (PAM/HACC) was firstly obtained through thermal-initiation polymerization of AM monomers in the presence of HACC. The positively charged groups on HACC provide strong electrostatic interactions and hydrogen bonding with the PAM polymer chains, leading to improved mechanical strength and stability of the hydrogel network...
March 14, 2024: International Journal of Biological Macromolecules
https://read.qxmd.com/read/38490737/new-carbon-materials-for-multifunctional-soft-electronics
#40
REVIEW
Jie Xue, Dan Liu, Da Li, Tianzeng Hong, Chuanbing Li, Zifu Zhu, Yuxuan Sun, Xiaobo Gao, Lei Guo, Xi Shen, Pengcheng Ma, Qingbin Zheng
Soft electronics are garnering significant attention due to their wide-ranging applications in artificial skin, health monitoring, human-machine interaction, artificial intelligence and the Internet of Things. Various soft physical sensors such as mechanical sensors, temperature sensors, and humidity sensors are the fundamental building blocks for soft electronics. While the fast growth and widespread utilization of electronic devices have elevated the life quality, the consequential electromagnetic interference (EMI) and radiation pose potential threats to device precision and human health...
March 15, 2024: Advanced Materials
keyword
keyword
91612
2
3
Fetch more papers »
Fetching more papers... Fetching...
Remove bar
Read by QxMD icon Read
×

Save your favorite articles in one place with a free QxMD account.

×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"

We want to hear from doctors like you!

Take a second to answer a survey question.