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https://www.readbyqxmd.com/read/28532077/preparation-of-robust-braid-reinforced-poly-vinyl-chloride-ultrafiltration-hollow-fiber-membrane-with-antifouling-surface-and-application-to-filtration-of-activated-sludge-solution
#1
Zhuang Zhou, Saeid Rajabzadeh, Lifeng Fang, Taro Miyoshi, Yuriko Kakihana, Hideto Matsuyama
Braid-reinforced hollow fiber membranes with high mechanical properties and considerable antifouling surface were prepared by blending poly(vinyl chloride) (PVC) with poly(vinyl chloride-co-poly(ethylene glycol) methyl ether methacrylate) (poly(VC-co-PEGMA)) copolymer via non-solvent induced phase separation (NIPS). The tensile strength of the braid-reinforced PVC hollow fiber membranes were significantly larger than those of previously reported various types of PVC hollow fiber membranes. The high interfacial bonding strength indicated the good compatibility between the coating materials and the surface of polyethylene terephthalate (PET)-braid...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28532070/ribose-mediated-crosslinking-of-collagen-hydroxyapatite-hybrid-scaffolds-for-bone-tissue-regeneration-using-biomimetic-strategies
#2
Gopal Shankar Krishnakumar, Natalia Gostynska, Elisabetta Campodoni, Massimiliano Dapporto, Monica Montesi, Silvia Panseri, Anna Tampieri, Elizaveta Kon, Maurilio Marcacci, Simone Sprio, Monica Sandri
This study explores for the first time the application of ribose as a highly biocompatible agent for the crosslinking of hybrid mineralized constructs, obtained by bio-inspired mineralization of self-assembling Type I collagen matrix with magnesium-doped-hydroxyapatite nanophase, towards a biomimetic mineralized 3D scaffolds (MgHA/Coll) with excellent compositional and structural mimicry of bone tissue. To this aim, two different crosslinking mechanisms in terms of pre-ribose glycation (before freeze drying) and post-ribose glycation (after freeze drying) were investigated...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28532011/molecularly-imprinted-polymer-for-human-viral-pathogen-detection
#3
REVIEW
Aijaz Ahmad Malik, Chanin Nantasenamat, Theeraphon Piacham
Molecular imprinting has become an attractive synthetic approach for the fabrication of novel functional polymers with pre-designed molecular target selectivity. Such molecularly imprinted polymers (MIPs) have been applied in wide range of areas such as chemical and biological sensors, solid phase extraction and drug assays owing to their inherent robustness, reusability and reproducibility. Furthermore, MIPs can also be used as tools for studies concerning antibody/receptor binding site mimicry as well as being used as antibody substitutes for biomedical applications...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28531977/antibiofilm-effect-of-supramolecularly-templated-mesoporous-silica-coatings
#4
Magdalena Pezzoni, Paolo N Catalano, Ramón A Pizarro, Martín F Desimone, Galo J A A Soler-Illia, Martín G Bellino, Cristina S Costa
Bacteria attached to solid surfaces and encased in a self-synthesized matrix, so-called biofilms, are highly difficult to eradicate and present negative impact on industry and human health. The ability of supramolecularly templated mesoporous silica coatings to inhibit biofilm formation in Pseudomonas aeruginosa is shown here. Assays employing submerged and air-liquid interface biofilms demonstrated that mesoporous coatings with tuned pore size significantly reduce the number of attached bacteria and matrix production...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28531550/barriers-and-facilitators-in-providing-oral-care-to-nursing-home-residents-from-the-perspective-of-care-aides-a-systematic-review-and-meta-analysis
#5
REVIEW
Matthias Hoben, Alix Clarke, Kha Tu Huynh, Nadia Kobagi, Angelle Kent, Huimin Hu, Raissa A C Pereira, Tianyuan Xiong, Kexin Yu, Hongjin Xiang, Minn N Yoon
BACKGROUND: Oral health of nursing home residents is generally poor, with severe consequences for residents' general health and quality of life and for the health care system. Care aides in nursing homes provide up to 80% of direct care (including oral care) to residents, but providing oral care is often challenging. Interventions to improve oral care must tailor to identified barriers and facilitators to be effective. This review identifies and synthesizes the evidence on barriers and facilitators care aides perceive in providing oral care to nursing home residents...
May 11, 2017: International Journal of Nursing Studies
https://www.readbyqxmd.com/read/28531355/flexible-multiferroic-bulk-heterojunction-with-giant-magnetoelectric-coupling-via-the-van-der-waals-epitaxy
#6
Ying-Hao Chu, Tahta Amrillah, Yugandhar Bitla, Kwangwoo Shin, Tiannan Yang, Ying-Hui Hsieh, Yu-You Chiou, Heng-Jui Liu, Thi Hien Do, Dong Su, Yi-Chun Chen, Shien-Uang Jen, Long-Qing Chen, Kee Hoon Kim, Jenh-Yih Juang
Magnetoelectric nanocomposites have been a topic of intense research due to their profound potential in the applications of electronic devices based on the spintronic technology. Nevertheless, in spite of significant progress made in the growth of high-quality nanocomposite thin films, the substrate clamping effect still remains as a major hurdle in realizing the ultimate magnetoelectric coupling. To overcome this obstacle, an alternative strategy of fabricating self-assembled ferroelectric-ferrimagnetic bulk heterojunction on flexible muscovite via the van der Waals epitaxy is adopted...
May 22, 2017: ACS Nano
https://www.readbyqxmd.com/read/28531345/plastic-and-human-health-a-micro-issue
#7
Stephanie L Wright, Frank J Kelly
Microplastics are a pollutant of environmental concern. Their presence in food destined for human consumption and in air samples has been reported. Thus, microplastic exposure via diet or inhalation could occur, the human health effects of which are unknown. The current review article draws upon cross-disciplinary scientific literature to discuss and evaluate the potential human health impacts of microplastics and outlines urgent areas for future research. Key literature up to September 2016 relating to bioaccumulation, particle toxicity, and chemical and microbial contaminants were critically examined...
May 22, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28531286/is-foetal-hyperexposure-to-androgens-a-cause-of-pcos
#8
Panagiota Filippou, Roy Homburg
BACKGROUND: Polycystic ovary syndrome (PCOS) is the most common endocrinopathy affecting reproductive-aged women. The pathophysiology of this syndrome is still not completely understood but recent evidence suggests that the intra-uterine environment may be a key factor in the pathogenesis of PCOS, in particular, hyperexposure of the foetus to androgens. High concentrations of maternal serum testosterone during pregnancy have been shown to influence behaviour during childhood, the prevalence of autism disorders and anti-Mullerian hormone (AMH) concentrations in adolescence...
May 20, 2017: Human Reproduction Update
https://www.readbyqxmd.com/read/28531195/livestock-metabolomics-and-the-livestock-metabolome-a-systematic-review
#9
Seyed Ali Goldansaz, An Chi Guo, Tanvir Sajed, Michael A Steele, Graham S Plastow, David S Wishart
Metabolomics uses advanced analytical chemistry techniques to comprehensively measure large numbers of small molecule metabolites in cells, tissues and biofluids. The ability to rapidly detect and quantify hundreds or even thousands of metabolites within a single sample is helping scientists paint a far more complete picture of system-wide metabolism and biology. Metabolomics is also allowing researchers to focus on measuring the end-products of complex, hard-to-decipher genetic, epigenetic and environmental interactions...
2017: PloS One
https://www.readbyqxmd.com/read/28531187/multi-scale-computational-study-of-the-mechanical-regulation-of-cell-mitotic-rounding-in-epithelia
#10
Ali Nematbakhsh, Wenzhao Sun, Pavel A Brodskiy, Aboutaleb Amiri, Cody Narciso, Zhiliang Xu, Jeremiah J Zartman, Mark Alber
Mitotic rounding during cell division is critical for preventing daughter cells from inheriting an abnormal number of chromosomes, a condition that occurs frequently in cancer cells. Cells must significantly expand their apical area and transition from a polygonal to circular apical shape to achieve robust mitotic rounding in epithelial tissues, which is where most cancers initiate. However, how cells mechanically regulate robust mitotic rounding within packed tissues is unknown. Here, we analyze mitotic rounding using a newly developed multi-scale subcellular element computational model that is calibrated using experimental data...
May 22, 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28531155/developing-health-related-indicators-of-climate-change-australian-stakeholder-perspectives
#11
Maryam Navi, Alana Hansen, Monika Nitschke, Scott Hanson-Easey, Dino Pisaniello
Climate-related health indicators are potentially useful for tracking and predicting the adverse public health effects of climate change, identifying vulnerable populations, and monitoring interventions. However, there is a need to understand stakeholders' perspectives on the identification, development, and utility of such indicators. A qualitative approach was used, comprising semi-structured interviews with key informants and service providers from government and non-government stakeholder organizations in South Australia...
May 22, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28531151/an-ensemble-spatiotemporal-model-for-predicting-pm2-5-concentrations
#12
Lianfa Li, Jiehao Zhang, Wenyang Qiu, Jinfeng Wang, Ying Fang
Although fine particulate matter with a diameter of <2.5 μm (PM2.5) has a greater negative impact on human health than particulate matter with a diameter of <10 μm (PM10), measurements of PM2.5 have only recently been performed, and the spatial coverage of these measurements is limited. Comprehensively assessing PM2.5 pollution levels and the cumulative health effects is difficult because PM2.5 monitoring data for prior time periods and certain regions are not available. In this paper, we propose a promising approach for robustly predicting PM2...
May 22, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28531135/aekf-slam-a-new-algorithm-for-robotic-underwater-navigation
#13
Xin Yuan, José-Fernán Martínez-Ortega, José Antonio Sánchez Fernández, Martina Eckert
In this work, we focus on key topics related to underwater Simultaneous Localization and Mapping (SLAM) applications. Moreover, a detailed review of major studies in the literature and our proposed solutions for addressing the problem are presented. The main goal of this paper is the enhancement of the accuracy and robustness of the SLAM-based navigation problem for underwater robotics with low computational costs. Therefore, we present a new method called AEKF-SLAM that employs an Augmented Extended Kalman Filter (AEKF)-based SLAM algorithm...
May 21, 2017: Sensors
https://www.readbyqxmd.com/read/28531131/the-role-of-interleukin-18-oxidative-stress-and-metabolic-syndrome-in-alzheimer-s-disease
#14
REVIEW
Johanna O Ojala, Elina M Sutinen
The role of interleukins (ILs) and oxidative stress (OS) in precipitating neurodegenerative diseases including sporadic Alzheimer's disease (AD), requires further clarification. In addition to neuropathological hallmarks-extracellular neuritic amyloid-β (Aβ) plaques, neurofibrillary tangles (NFT) containing hyperphosphorylated tau and neuronal loss-chronic inflammation, as well as oxidative and excitotoxic damage, are present in the AD brain. The pathological sequelae and the interaction of these events during the course of AD need further investigation...
May 21, 2017: Journal of Clinical Medicine
https://www.readbyqxmd.com/read/28531101/phrog-a-multimodal-feature-for-place-recognition
#15
Fabien Bonardi, Samia Ainouz, Rémi Boutteau, Yohan Dupuis, Xavier Savatier, Pascal Vasseur
Long-term place recognition in outdoor environments remains a challenge due to high appearance changes in the environment. The problem becomes even more difficult when the matching between two scenes has to be made with information coming from different visual sources, particularly with different spectral ranges. For instance, an infrared camera is helpful for night vision in combination with a visible camera. In this paper, we emphasize our work on testing usual feature point extractors under both constraints: repeatability across spectral ranges and long-term appearance...
May 20, 2017: Sensors
https://www.readbyqxmd.com/read/28531091/ab-initio-studies-of-coherent-spin-transport-in-fe-hbn-graphene-van-der-waals-multilayers
#16
Aniekan Ukpong
This paper presents the results of ab initio studies of the electronic spin manipulation, inversion, filtering and transport using a ferromagnetic multilayer heterostructure. Spin-polarized electronic structure calculations are performed based on van der Waals density functional theory to give unique insights to the generation, manipulation and transport of coherent spin conductance. By using an exact theory of the self-consistent ground state of the Fe-hBN/graphene multilayer as a model of the magnetic tunnel junction, this paper unravels the hidden asymmetries in the spin-resolved charge densities...
May 22, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/28530740/extraction-behaviour-and-mechanism-of-pt-iv-and-pd-ii-by-liquid-liquid-extraction-with-an-ionic-liquid-hbbim-br
#17
Wenhui Liu, Qi Wang, Yan Zheng, Shubin Wang, Yan Yan, Yanzhao Yang
In this study, a method of one-step separation and recycling of high purity Pd(ii) and Pt(iv) using an ionic liquid, 1-butyl-3-benzimidazolium bromate ([HBBIm]Br), was investigated. The effects of [HBBIm]Br concentration, initial metal concentration, and loading capacity of [HBBIm]Br were examined in detail. It was observed that [HBBIm]Br was a very effective extractant for selectively extracting Pd(ii) and precipitating Pt(iv). Through selectively extracting Pd(ii) and precipitating Pt(iv), each metal with high purity was separately obtained from mixed Pd(ii) and Pt(iv) multi-metal solution...
May 22, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28530665/molecular-engineering-of-chiral-colloidal-liquid-crystals-using-dna-origami
#18
Mahsa Siavashpouri, Christian H Wachauf, Mark J Zakhary, Florian Praetorius, Hendrik Dietz, Zvonimir Dogic
Establishing precise control over the shape and the interactions of the microscopic building blocks is essential for design of macroscopic soft materials with novel structural, optical and mechanical properties. Here, we demonstrate robust assembly of DNA origami filaments into cholesteric liquid crystals, one-dimensional supramolecular twisted ribbons and two-dimensional colloidal membranes. The exquisite control afforded by the DNA origami technology establishes a quantitative relationship between the microscopic filament structure and the macroscopic cholesteric pitch...
May 22, 2017: Nature Materials
https://www.readbyqxmd.com/read/28530559/meat-species-identification-by-two-direct-triplex-real-time-pcr-assays-using-low-resolution-melting
#19
Phuvadol Thanakiatkrai, Thitika Kitpipit
We developed and validated the first direct multiplex real-time PCR assay with melt curve analysis for the identification of different types of meat. The assay detects six commonly eaten meat species and provides the following benefits: ease of use, shortened analysis time, and decreased analysis cost. Species-specific primers were designed from cytochrome b, cytochrome oxidase I, and 16S rRNA genes to generate PCR products with specific melting peaks that differentiate pork, beef, horsemeat, duck meat, ostrich meat, and chicken...
October 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28530548/critical-role-of-rig-i-and-mda5-in-early-and-late-stages-of-tulane-virus-infection
#20
Preeti Chhabra, Priya Ranjan, Theresa Cromeans, Suryaprakash Sambhara, Jan Vinjé
Human noroviruses are a major cause of acute gastroenteritis worldwide, but the lack of a robust cell culture system or small animal model have hampered a better understanding of innate immunity against these viruses. Tulane virus (TV) is the prototype virus of a tentative new genus, Recovirus, in the family Caliciviridae. Its epidemiology and biological properties most closely resemble human norovirus. The host innate immune response to RNA virus infection primarily involves pathogen-sensing toll-like receptors (TLRs) TLR3 and TLR7 and retinoic acid-inducible gene I-like receptor RIG-I and melanoma differentiation associated gene 5 (MDA5)...
May 22, 2017: Journal of General Virology
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