keyword
MENU ▼
Read by QxMD icon Read
search

Foam

keyword
https://www.readbyqxmd.com/read/28732337/critical-review-of-soil-contamination-by-polybrominated-diphenyl-ethers-pbdes-and-novel-brominated-flame-retardants-nbfrs-concentrations-sources-and-congener-profiles
#1
REVIEW
Thomas J McGrath, Andrew S Ball, Bradley O Clarke
Polybrominated diphenyl ethers (PBDEs) have been used in a broad array of polymeric materials such as plastics, foams, resins and adhesives to inhibit the spread of fires since the 1970s. The widespread environmental contamination and well documented toxic effects of PBDEs have led to bans and voluntary withdrawals in many jurisdictions. Replacement novel brominated flame retardants (NBFRs) have, however, exhibited many of the same toxic characteristics as PBDEs and appear to share similar environmental fate...
July 18, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28731319/few-layered-mo-1-x-wxs2-hollow-nanospheres-on-ni3s2-nanorods-heterostructure-as-robust-electrocatalysts-for-overall-water-splitting
#2
Meiyong Zheng, Jing Du, Baopu Hou, Cai-Ling Xu
Owing to the unique optical, electronic and catalytic properties, MoS2 have received increasing interests in electrochemical water splitting. Herein, few-layered Mo(1-x)WxS2 hollow nanospheres modified Ni3S2 heterostructures are prepared through a facile hydrothermal method to further enhance the electro-catalytic performance of MoS2. The doping of W element optimizes the electronic structure of MoS2@Ni3S2, thus improves the conductivity and charge transfer ability of MoS2@Ni3S2. In addition, benefiting from the few-layered hollow structure of Mo(1-x)WxS2, the strong electronic interactions between Mo(1-x)WxS2 and Ni3S2, and the hierarchical structure of 1D nanorods and 3D Ni foam, massive active sites and fast ion and charge transportion are obtained...
July 21, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28731224/extremely-low-density-and-super-compressible-graphene-cellular-materials
#3
Ling Qiu, Bing Huang, Zijun He, Yuanyuan Wang, Zhiming Tian, Jefferson Zhe Liu, Kun Wang, Jingchao Song, Thomas R Gengenbach, Dan Li
Development of extremely low density graphene elastomer (GE) holds the potential to enable new properties that traditional cellular materials cannot offer, which are promising for a range of emerging applications, ranging from flexible electronics to multifunctional scaffolds. However, existing graphene foams with extremely low density are generally found to have very poor mechanical resilience. It is scientifically intriguing but remains unresolved whether and how the density limit of this class of cellular materials can be further pushed down while their mechanical resilience is being retained...
July 21, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28731092/a-ni-p-nico-ldh-core-shell-nanorod-decorated-nickel-foam-with-enhanced-areal-specific-capacitance-for-high-performance-supercapacitors
#4
Jiale Xing, Jing Du, Xuan Zhang, Yubo Shao, Ting Zhang, Cailing Xu
Recently, transition metal-based nanomaterials have played a key role in the applications of supercapacitors. In this study, nickel phosphide (Ni-P) was simply combined with NiCo LDH via facile phosphorization of Ni foam and subsequent electrodeposition to form core-shell nanorod arrays on the Ni foam; the Ni-P@NiCo LDH was then directly used for a pseudocapacitive electrode. Owing to the splendid synergistic effect between Ni-P and NiCo LDH nanosheets as well as the hierarchical structure of 1D nanorods, 2D nanosheets, and 3D Ni foam, the hybrid electrode exhibited significantly enhanced electrochemical performances...
July 21, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28730803/3d-graphene-foam-filled-elastomer-composites-with-high-thermal-and-mechanical-properties
#5
Haoming Fang, Yunhong Zhao, Yafei Zhang, Yanjuan Ren, Shulin Bai
In order to meet the increasing demands for effective heat management of electronic devices, graphene based polymeric composite is considered to be one of the candidate materials due to the ultrahigh thermal conductivity of graphene. However, poor graphene dispersion, low quality of exfoliated graphene and strong phonon scattering at graphene/matrix interface restrict the heat dissipation ability of graphene filled composites. Here, a facile and versatile approach to bond graphene foam (GF) with polydimethylsiloxane (PDMS) is proposed and the corresponding composite with considerable improvement of thermal conductivity and insulativity is fabricated...
July 21, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28729885/cd36-overexpression-a-possible-etiopathogenic-mechanism-of-atherosclerosis-in-patients-with-prediabetes-and-diabetes
#6
M D Lopez-Carmona, M C Plaza-Seron, A Vargas-Candela, F J Tinahones, R Gomez-Huelgas, M R Bernal-Lopez
RATIONALE: CD36 is a scavenger receptor located on monocytes which is involved in foam cell transformation. AIM: To evaluate CD36 expression under different glycemic states in both healthy subjects and in atherosclerotic patients. SUBJECTS AND METHODS: In order to evaluate the possible effects of hyperglycemia on CD36 expression in healthy subjects, an in vitro experiment was carried out using monocyte in three different conditions: extreme hyperglycemia (HG), euglycemia (EG) and in the absence of glucose...
2017: Diabetology & Metabolic Syndrome
https://www.readbyqxmd.com/read/28729613/effects-of-sintering-temperature-on-crystallization-and-fabrication-of-porous-bioactive-glass-scaffolds-for-bone-regeneration
#7
E P Erasmus, O T Johnson, I Sigalas, J Massera
In this work the sintering ability of borosilicate (S53B50), borophosphate (P40B10) and phosphate (Sr) bioactive glasses was investigated. The glass powders were crushed and sintered in air at a heating rate of 10 °C/min for 2 hours at sintering temperatures between 480 °C-600 °C. The aim was to define the optimum sintering temperature prior to glass crystallization. The density of the samples was found to decrease when the temperature was increased up to 580 °C; probably due to the inhibition of the viscous flow of the particles during sintering thereby reducing the densification of the material...
July 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28726899/enhanced-interfacial-activity-of-multi-arm-poly-ethylene-oxide-star-polymers-relative-to-linear-poly-ethylene-oxide-at-fluid-interfaces
#8
Yun-Ru Huang, Melissa Lamson, Krzysztof Matyjaszewski, Robert D Tilton
Interfacial tension reduction, dynamic dilatational elasticity and extent of adsorption were investigated for linear poly(ethylene oxide) (PEO) chains of varying molecular weight and for PEO star polymers with an average of 64 arms per star at air/water, xylene/water, and cyclohexane/water interfaces. Adsorption on planar interfaces was monitored by ellipsometry, while interfacial tension and dilatational elasticity were measured separately by pendant drop tensiometry. Previously reported to be efficient emulsifiers, PEO stars are shown here to also be more effective foaming agents than linear PEO...
July 20, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28726225/the-principle-and-effect-of-transfer-agent-for-the-removal-of-pce-during-in-situ-chemical-oxidation
#9
Yunsong Liu, Jiajun Chen, Qingwei Wang, Lanxiang Shi, Yandan Shi
Viscosity remedial technology, which uses a water-soluble polymer mixed with remedial fluids, has been introduced in recent years to improve the removal efficacy of perchloroethylene/tetrachloroethylene (PCE) by improving oxidant coverage (i.e. sweep efficiency). Xanthan gum and hydrolysed polyacrylamide (HPAM) are relatively stable with time and temperature and possess salt and oxidation resistance, indicating that they may be good flooding agents (the former is better than the latter in this work). In this work, we quantified the polymer directly improved oxidation of PCE during transport by using a two-dimensional flow tank...
July 19, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28724444/adaptation-effects-in-static-postural-control-by-providing-simultaneous-visual-feedback-of-center-of-pressure-and-center-of-gravity
#10
Kenta Takeda, Hiroki Mani, Naoya Hasegawa, Yuki Sato, Shintaro Tanaka, Hiroshi Maejima, Tadayoshi Asaka
BACKGROUND: The benefit of visual feedback of the center of pressure (COP) on quiet standing is still debatable. This study aimed to investigate the adaptation effects of visual feedback training using both the COP and center of gravity (COG) during quiet standing. METHODS: Thirty-four healthy young adults were divided into three groups randomly (COP + COG, COP, and control groups). A force plate was used to calculate the coordinates of the COP in the anteroposterior (COPAP) and mediolateral (COPML) directions...
July 19, 2017: Journal of Physiological Anthropology
https://www.readbyqxmd.com/read/28723729/wnt-signaling-in-cardiovascular-disease-opportunities-and-challenges
#11
Austin Gay, Dwight A Towler
PURPOSE OF REVIEW: Cardiometabolic diseases increasingly afflict our aging, dysmetabolic population. Complex signals regulating low-density lipoprotein receptor-related protein (LRP) and frizzled protein family members - the plasma membrane receptors for the cadre of Wnt polypeptide morphogens - contribute to the control of cardiovascular homeostasis. RECENT FINDINGS: Both canonical (β-catenin-dependent) and noncanonical (β-catenin-independent) Wnt signaling programs control vascular smooth muscle (VSM) cell phenotypic modulation in cardiometabolic disease...
July 18, 2017: Current Opinion in Lipidology
https://www.readbyqxmd.com/read/28723386/foam-adsorption-as-an-ex-situ-capture-step-for-surfactants-produced-by-fermentation
#12
Iva Anic, Arijit Nath, Pedro Franco, Rolf Wichmann
In this report, a method for a simultaneous production and separation of a microbially synthesized rhamnolipid biosurfactant is presented. During the aerobic cultivation of flagella-free Pseudomonas putida EM383 in a 3.1L stirred tank reactor on glucose as a sole carbon source, rhamnolipids are produced and excreted into the fermentation liquid. Here, a strategy for biosurfactant capture from rhamnolipid enriched fermentation foam using hydrophobic-hydrophobic interaction was investigated. Five adsorbents were tested independently for the application of this capture technique and the best performing adsorbent was tested in a fermentation process...
July 16, 2017: Journal of Biotechnology
https://www.readbyqxmd.com/read/28722350/multidimensional-anodized-titanium-foam-photoelectrode-for-efficient-utilization-of-photons-in-mesoscopic-solar-cells
#13
Jin Soo Kang, Hyelim Choi, Jin Kim, Hyeji Park, Jae-Yup Kim, Jung-Woo Choi, Seung-Ho Yu, Kyung Jae Lee, Yun Sik Kang, Sun Ha Park, Yong-Hun Cho, Jun-Ho Yum, David C Dunand, Heeman Choe, Yung-Eun Sung
Mesoscopic solar cells based on nanostructured oxide semiconductors are considered as a promising candidates to replace conventional photovoltaics employing costly materials. However, their overall performances are below the sufficient level required for practical usages. Herein, this study proposes an anodized Ti foam (ATF) with multidimensional and hierarchical architecture as a highly efficient photoelectrode for the generation of a large photocurrent. ATF photoelectrodes prepared by electrochemical anodization of freeze-cast Ti foams have three favorable characteristics: (i) large surface area for enhanced light harvesting, (ii) 1D semiconductor structure for facilitated charge collection, and (iii) 3D highly conductive metallic current collector that enables exclusion of transparent conducting oxide substrate...
July 19, 2017: Small
https://www.readbyqxmd.com/read/28722045/3d-free-standing-hierarchical-cuco2o4-nanowire-cathodes-for-rechargeable-lithium-oxygen-batteries
#14
Wang Sun, Yan Wang, Haitao Wu, Zhenhua Wang, David Rooney, Kening Sun
A carbon and binder-free cathode for use in Li-O2 cells which is based on free-standing CuCo2O4 nanowires supported on a nickel foam was synthesized by an efficient hydrothermal method. The resulting hierarchical porous and umbrella structures of the hybrid CuCo2O4@Ni foam cathodes present an excellent rate capability and cycle performance.
July 19, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28721297/potential-application-of-bacillus-subtilis-spb1-lipopeptides-in-toothpaste-formulation
#15
Mouna Bouassida, Nada Fourati, Fatma Krichen, Raida Zouari, Semia Ellouz-Chaabouni, Dhouha Ghribi
Toothpaste is a gel dentifrice used with a toothbrush as an accessory to clean, keep and promote oral hygiene. The literature review suggests that there are many different formulations of toothpastes and that each of their individual components present specific functions. The concentration of the toothpaste ingredients must be appropriately chosen taking into account the purposes of the toothpaste. Biosurfactants are considered as suitable molecules for application in many formulations such as in toothpaste one...
July 2017: Journal of Advanced Research
https://www.readbyqxmd.com/read/28720107/reversible-bacterial-immobilization-based-on-the-salt-dependent-adhesion-of-the-bacterionanofiber-protein-ataa
#16
Shogo Yoshimoto, Yuki Ohara, Hajime Nakatani, Katsutoshi Hori
BACKGROUND: Immobilization of microbial cells is an important strategy for the efficient use of whole-cell catalysts because it simplifies product separation, enables the cell concentration to be increased, stabilizes enzymatic activity, and permits repeated or continuous biocatalyst use. However, conventional immobilization methods have practical limitations, such as limited mass transfer in the inner part of a gel, gel fragility, cell leakage from the support matrix, and adverse effects on cell viability and catalytic activity...
July 18, 2017: Microbial Cell Factories
https://www.readbyqxmd.com/read/28717784/incorporating-foam-into-medical-student-and-resident-education
#17
Karalynn Otterness
No abstract text is available yet for this article.
June 2017: Clinical and Experimental Emergency Medicine
https://www.readbyqxmd.com/read/28717165/fabricating-fast-triggered-electro-active-shape-memory-graphite-silver-nanowires-epoxy-resin-composite-from-polymer-template
#18
Jie Zhou, Hua Li, Ran Tian, Roberto Dugnani, Huiyuan Lu, Yujie Chen, Yiping Guo, Huanan Duan, Hezhou Liu
In recent years shape-memory polymers have been under intense investigation due to their unique mechanical, thermal, and electrical properties that could potentially make them extremely valuable in numerous engineering applications. In this manuscript, we report a polymer-template-assisted assembly manufacturing strategy used to fabricate graphite/silver nanowires/epoxy resin (PGSE) composite. In the proposed method, the porous polymer foams work as the skeleton by forming three-dimensional graphite structure, whereas the silver nanowires act as the continuous conductive network...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28714854/evaluation-of-bone-formation-in-calcium-phosphate-scaffolds-with-%C3%A2%C2%B5ct-method-validation-using-sem
#19
Susanne Lewin, Albert Barba, Cecilia Persson, Jordi Franch Serracanta, Maria Pau Ginebra, Caroline Öhman
There is a plethora of Calcium phosphate (CaP) scaffolds used as synthetic substitutes to bone grafts. The scaffold performance is often evaluated from the quantity of bone formed within or in direct contact with the scaffold. Micro computed tomography (µCT) allows three-dimensional evaluation of bone formation inside scaffolds. However, the almost identical x-ray attenuation of CaP and bone obtrude the separation of these phases in µCT images. Commonly, segmentation of bone in µCT images is based on gray scale intensity, with manually determined global thresholds...
July 17, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/28714664/iron-doped-nickel-phosphide-nanosheet-arrays-an-efficient-bifunctional-electrocatalyst-for-water-splitting
#20
Pengyan Wang, Zonghua Pu, Yanhui Li, Lin Wu, Zhengkai Tu, Min Jiang, Zongkui Kou, Ibrahim Saana Amiinu, Shichun Mu
Exploring efficient and earth-abundant electrocatalysts for water splitting is crucial for various renewable energy technologies. In this work, iron (Fe)-doped nickel phosphide (Ni2P) nanosheet arrays supported on nickel foam (Ni1.85Fe0.15P NSAs/NF) are fabricated through a facile hydrothermal method followed by phosphorization. The electrochemical analysis demonstrates that the Ni1.85Fe0.15P NSAs/NF electrode possesses high electrocatalytic activity for water splitting. In 1.0 M KOH, the Ni1.85Fe0.15P NSAs/NF electrode only needs overpotentials of 106 mV at 10 mA cm-2 and 270 mV at 20 mA cm-2 to drive hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), respectively...
July 17, 2017: ACS Applied Materials & Interfaces
keyword
keyword
5587
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

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"