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Yuan-Bo Tong, Zheng-Fang Tian, Hai-Bao Duan, Zhong-Peng Zhu, Wei He, Tian-Yu Hong, Gui Yu, Yu-Jian He, Jing-Kui Yang
Multifunctional materials that exhibit different physical properties in a single phase have potential for use in multifunctional devices. Herein, we reported an organic-inorganic hybrid compound [(18-crown-6)K][Fe(1)Cl(1)4]0.5[Fe(2)Cl(2)4]0.5 (1) by incorporating KCl and FeCl3 into the 18-crown-6 molecular which acts as a host of the six O atoms affording lone-pair electrons to anchor the guest potassium cation, and [FeCl4]- as a counter ion for charge balance to construct a complex salt. This salt exhibited a one-step reversible structural transformation to give two separate high and low temperature phases at 373 K, which was confirmed by systematic characterizations including differential scanning calorimetry (DSC) measurements, variable-temperature structural analyses, and dielectric, impedance, variable-temperature magnetic susceptibility measurements...
January 22, 2018: Chemistry, An Asian Journal
Linghui Yu, Luyuan Paul Wang, Hanbin Liao, Jingxian Wang, Zhenxing Feng, Ovadia Lev, Joachim S C Loo, Moulay Tahar Sougrati, Zhichuan J Xu
Development of efficient, affordable, and sustainable energy storage technologies has become an area of interest due to the worsening environmental issues and rising technological dependence on Li-ion batteries. Na-ion batteries (NIBs) have been receiving intensive research efforts during the last few years. Owing to their potentially low cost and relatively high energy density, NIBs are promising energy storage devices, especially for stationary applications. A fundamental understanding of electrode properties during electrochemical reactions is important for the development of low cost, high-energy density, and long shelf life NIBs...
January 22, 2018: Small
Tomas Homola, Jan Pospišil, Richard Krumpolec, Pavel Souček, Petr Dzik, Martin Weiter, Mirko Černák
This contribution presents a low-temperature method for dry hydrogen plasma reduction of inkjet-printed flexible graphene oxide (GO) electrodes, an approach compatible with processes envisaged for the manufacture of flexible electronics. The processing of GO to reduced graphene oxide (rGO) was performed in 1-64 seconds, and sp2/sp2+sp3 carbon concentration increased from approx. 20% to 90%. Since the plasma reduction was associated with an etching effect, the optimal reduction time occurred between 8 and 16 seconds...
January 22, 2018: ChemSusChem
Shir Reen Chia, Kit Wayne Chew, Pau Loke Show, Yee Jiun Yap, Hwai Chyuan Ong, Tau Chuan Ling, Jo-Shu Chang
Microalgae are considered promising feedstock for the production of biofuels and other bioactive compounds, yet there are still challenges on commercial applications of microalgae-based products. This review focuses on the economic analysis, environmental impact and industrial potential of biofuels production from microalgae. The cost of biofuels production remains higher compared to conventional fuel sources. However, integration of biorefinery pathways with biofuels production for the recovery of value-added products (such as antioxidants, natural dyes, cosmetics, nutritional supplements, polyunsaturated fatty acids and so forth) could substantially reduce the production costs...
January 22, 2018: Biotechnology Journal
John M Wood, Jerry P Weir
The single radial immunodiffusion assay has been the accepted method for determining the potency of inactivated influenza vaccines since 1978. The world-wide adoption of this assay for vaccine standardisation was facilitated through collaborative studies that demonstrated a high level of reproducibility and its applicability to the different types of influenza vaccine being produced at that time. Clinical evidence indicated the relevance of SRID as a potency assay. Unique features of the SRID assay are likely responsible for its longevity even as newer technologies for vaccine characterization have been developed and refined...
January 21, 2018: Influenza and Other Respiratory Viruses
Li-Qiong Shen, Xiao-Ying Zang, Ji-Yan Cong
BACKGROUND: Personal digital assistants, technology with various functions, have been applied in international clinical practice. Great benefits in reducing medical errors and enhancing the efficiency of clinical work have been achieved, but little research has investigated nurses' satisfaction with the use of personal digital assistants. AIM: To investigate nurses' satisfaction with use of personal digital assistants, and to explore the predictors of this. DESIGN: This is a cross-sectional descriptive study...
January 21, 2018: International Journal of Nursing Practice
Shengyu Jin, Yixiu Wang, Maithilee Motlag, Shengjie Gao, Jin Xu, Qiong Nian, Wenzhuo Wu, Gary J Cheng
Ongoing efforts in triboelectric nanogenerators (TENGs) focus on enhancing power generation, but obstacles concerning the economical and cost-effective production of TENGs continue to prevail. Micro-/nanostructure engineering of polymer surfaces has been dominantly utilized for boosting the contact triboelectrification, with deposited metal electrodes for collecting the scavenged energy. Nevertheless, this state-of-the-art approach is limited by the vague potential for producing 3D hierarchical surface structures with conformable coverage of high-quality metal...
January 22, 2018: Advanced Materials
D Kerr, C Axelrod, C Hoppe, D C Klonoff
The ability of an individual living with diabetes to have human-to-human contact with their healthcare provider is not keeping pace with the number of people developing diabetes. From a futurist perspective, however, this dichotomy of diabetes care represents an opportunity for digital healthcare. The focus of technological innovation is unlikely to be the replacement of the multidisciplinary diabetes team but rather the provision of meaningful individual and family support between clinic visits and, on a larger scale, the facilitation of population health management for diabetes...
January 22, 2018: Diabetic Medicine: a Journal of the British Diabetic Association
P Prahalad, M Tanenbaum, K Hood, D M Maahs
With the evolution of diabetes technology, those living with Type 1 diabetes are given a wider arsenal of tools with which to achieve glycaemic control and improve patient-reported outcomes. Furthermore, the use of these technologies may help reduce the risk of acute complications, such as severe hypoglycaemia and diabetic ketoacidosis, as well as long-term macro- and microvascular complications. In addition, diabetes technology can have a beneficial impact on psychosocial health by reducing the burden of diabetes...
January 22, 2018: Diabetic Medicine: a Journal of the British Diabetic Association
Jared Jagdeo, Evan Austin, Andrew Mamalis, Christopher Wong, Derek Ho, Daniel Siegel
OBJECTIVE: In dermatology, patient and physician adoption of light-emitting diode (LED) medical technology continues to grow as research indicates that LEDs may be used to treat skin conditions. The goal of this systematic review is to critically analyze published randomized controlled trials (RCTs) and provide evidence-based recommendations on the therapeutic uses of LEDs in dermatology based on published efficacy and safety data. METHODS: A systematic review of the published literature on the use of LED treatments for skin conditions was performed on September 13th 2017...
January 22, 2018: Lasers in Surgery and Medicine
Caitlin Axford, Annette V Joosten, Courtenay Harris
BACKGROUND/AIM: Children are reported to spend less time engaged in outdoor activity and object-related play than in the past. The increased use and mobility of technology, and the ease of use of tablet devices are some of the factors that have contributed to these changes. Concern has been raised that the use of such screen and surface devices in very young children is reducing their fine motor skill development. We examined the effectiveness of iPad applications that required specific motor skills designed to improve fine motor skills...
January 21, 2018: Australian Occupational Therapy Journal
Xinyu Liao, Jiao Li, Aliyu Idris Muhammad, Yuanjie Suo, Shiguo Chen, Xingqian Ye, Donghong Liu, Tian Ding
Atmospheric cold plasma (ACP) is a promising non-thermal technology in food industry. In this study, a dielectric barrier discharge (DBD)-ACP exhibited strong bactericidal effect on Escherichia coli in apple juice. Under a 30 to 50 W input power, less than 40 s treatment time was required for DBD-ACP to result in 3.98 to 4.34 log CFU/mL reduction of E. coli in apple juice. The inactivation behavior of ACP on E. coli was well described by the Weibull model. During the treatment, the cell membrane of E. coli was damaged severely by active species produced by plasma, such as hydrogen peroxide, ozone and nitrate...
January 22, 2018: Journal of Food Science
Xiao-Ting Xuan, Yan Cui, Xu-Dong Lin, Jing-Feng Yu, Xiao-Jun Liao, Jian-Gang Ling, Hai-Tao Shang
The effects of high hydrostatic pressure (HHP) treatments (200, 300, and 400 MPa for 1, 3, 5 and 10 min) on the shelling efficacy (the rate of shelling, the rate of integrity and yield of razor clam meat) and the physicochemical (drip loss, water-holding capacity, pH, conductivity, lipid oxidation, Ca2+ -ATPase activity, myofibrillar protein content), microbiological (total viable counts) and microstructural properties of fresh razor clam (Sinonovacula constricta) were investigated. HHP treatments significantly (P < 0...
January 22, 2018: Journal of Food Science
Michael D Jenkinson, Damiano Giuseppe Barone, Andrew Bryant, Luke Vale, Helen Bulbeck, Theresa A Lawrie, Michael G Hart, Colin Watts
BACKGROUND: Extent of resection is considered to be a prognostic factor in neuro-oncology. Intraoperative imaging technologies are designed to help achieve this goal. It is not clear whether any of these sometimes very expensive tools (or their combination) should be recommended as standard care for people with brain tumours. We set out to determine if intraoperative imaging technology offers any advantage in terms of extent of resection over standard surgery and if any one technology was more effective than another...
January 22, 2018: Cochrane Database of Systematic Reviews
Yang Li, Wei Zhou, Juncai Dong, Yun Luo, Pengfei An, Juan Liu, Xin Wu, Guilan Xu, Huabin Zhang, Jian Zhang
Interface modification is an effective and promising route for developing functional electrocatalysts. However, researchers have not created a reliable method to optimize the interfaces of components existing in electrocatalysts, although it is very crucial for the technological development of high-performance electrodes. Here, we develop a strategy aiming at the in situ anchorage of Co9S8 nanoparticles into a nitrogen (N), sulfur (S) co-implanted three-dimensional carbon matrix (Co9S8@NSCM) as a highly active and durable nonprecious metal electrocatalyst for the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) in alkaline medium...
January 22, 2018: Nanoscale
Yushen Liu, Yaojun Dong, Jie Zhang, H L Yu, Jinfu Feng, Xifeng Yang
Zigzag silicene nanoribbons (ZSiNRs) in the ferromagnetic edge ordering have a metallic behavior which limits their applications in spintronics. Here a robustly half-metallic property is achieved by the boron (B) substitution doping at the edge of ZSiNRs. When the impurity atom is replaced by the aluminum (Al) atom, the doped ZSiNRs possess a spin semiconducting property. Its band gap is suppressed with the increase of ribbon's width, and a pure thermal spin current is achieved by modulating ribbon's width...
January 22, 2018: Nanotechnology
Jing Zhao, Chunshan Quan, Liming Jin, Ming Chen
Autoinducer-2 (AI-2) is a major signal molecule in bacterial quorum sensing (QS) besides N-acyl homoserine lactones (AHLs or AI-1). AI-2 mediated QS pathways have been proved to regulate gene expression and physiological behaviors of bacteria in either intraspecies or interspecies communication. Recent reviews have mainly summarized AI-2 structures, AI-2 mediated QS pathways and the role of AI-2 in gene regulation, etc. In this article, we present a comprehensive review of AI-2 production, detection and applications...
January 16, 2018: Journal of Biotechnology
J Hardy, T C Veinot, X Yan, V J Berrocal, P Clarke, R Goodspeed, I N Gomez, D Romero, V G V Vydiswaran
Research regarding place and health has undergone a revolution due to the availability of consumer-focused location-tracking devices that reveal fine-grained details of human mobility. Such research requires that participants accept such devices enough to use them in their daily lives. There is a need for a theoretically grounded understanding of acceptance of different location-tracking technology options, and its research implications. Guided by an extended Unified Theory of Acceptance and Use of Technology (UTAUT), we conducted a 28-day field study comparing 21 chronically ill people's acceptance of two leading, consumer-focused location-tracking technologies deployed for research purposes: 1) a location-enabled smartphone, and 2) a GPS watch/activity tracker...
January 17, 2018: Journal of Biomedical Informatics
Ching-Heáng Lin, Hsin-I Chou, Ueng-Cheng Yang
OBJECTIVE: Using standards is not only useful for data interchange during the process of a clinical trial, but also useful for analyzing data in a review process. Any step, which speeds up approval of new drugs, may benefit patients. As a result, adopting standards for regulatory submission becomes mandatory in some countries. However, preparing standard-compliant documents, such as annotated case report form (aCRF), needs a great deal of knowledge and experience. The process is complex and labor-intensive...
January 18, 2018: Journal of Biomedical Informatics
Mohsen Shariati
In this paper the field-effect transistor DNA biosensor for detecting hepatitis B virus (HBV) based on indium tin oxide nanowires (ITO NWs) in label free approach has been fabricated. Because of ITO nanowires intensive conductance and functional modified surface, the probe immobilization and target hybridization were increased strongly. The high resolution transmission electron microscopy (HRTEM) measurement showed that ITO nanowires were crystalline and less than 50nm in diameter. The single-stranded hepatitis B virus DNA (SS-DNA) was immobilized as probe on the Au-modified nanowires...
January 11, 2018: Biosensors & Bioelectronics
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