keyword
MENU ▼
Read by QxMD icon Read
search

Foam

keyword
https://www.readbyqxmd.com/read/29031155/the-effect-of-nanoparticle-aggregation-on-surfactant-foam-stability
#1
Zuhair A AlYousef, Mohammed A Almobarky, David S Schechter
The combination of nanoparticles (NPs) and surfactant may offer a novel technique of generating stronger foams for gas mobility control. This study evaluates the potential of silica NPs to enhance the foam stability of three nonionic surfactants. Results showed that the concentration of surfactant and NPs is a crucial parameter for foam stability and that there is certain concentrations for strong foam generation. A balance in concentration between the nonionic surfactants and the NPs can enhance the foam stability as a result of forming flocs in solutions...
September 20, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/29031092/one-step-synthesis-of-silicon-carbide-foams-supported-hierarchical-porous-sludge-derived-activated-carbon-as-efficient-odor-gas-adsorbent
#2
Jingling Yang, Wenjun Xu, Chun He, Yajing Huang, Zaili Zhang, Yunchen Wang, Lingling Hu, Dehua Xia, Dong Shu
Hierarchical porous sludge-derived activated carbon coated on macroporous silicon carbide (SiC) foams substrate has been facilely fabricated via a simple one-step strategy by utilizing sludge as carbon source, and jointly using zinc chloride and hexadecanol as pore forming agents. The sludge-derived carbon has been confirmed to be hierarchical macro-meso-microporous structure based on detailed characterization by scanning electron microscopy (SEM), X-ray diffraction (XRD), Raman spectra and nitrogen adsorption-desorption measurement...
October 2, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/29029357/a-pilot-retrospective-study-to-evaluate-two-multi-layer-foam-dressings-for-the-management-of-moderately-exudative-pressure-injuries
#3
Kevin Woo, Jennifer Kasaboski
Prevention and treatment of pressure injuries (PI) is a standard benchmark for quality of care, performance, risk reduction, and patient safety. Foam dressings are designed to wick away a large volume of exudate with minimal lateral movement to prevent periwound skin maceration; this renders foam dressings a popular choice for the treatment of chronic wounds with high to moderate amounts of exudate. In addition, multi-layer foam dressings may have added benefits to alleviate pressure and minimize shear as the dressing materials slide against each other...
October 12, 2017: Surgical Technology International
https://www.readbyqxmd.com/read/29028623/constraints-specific-influences-of-vision-touch-and-surface-compliance-in-postural-dynamics
#4
I-Chieh Lee, Matheus M Pacheco, Karl M Newell
Studies that have manipulated vision and touch in posture usually emphasize the prescriptive closed-loop function of the information to reduce the amount of postural motion. In contrast, we examine here the hypothesis that the standard sensory manipulations to maintain quiet stance also change in specific ways the constraints on the task goal and the emergent movement organization. Twelve participants were instructed to maintain quiet postural stance under three sensory factors: surface compliance (foam/no foam), visual information (open/closed eyes) and tactile information (finger touch/no finger touch)...
September 18, 2017: Gait & Posture
https://www.readbyqxmd.com/read/29027724/adsorbed-eutectic-gain-structures-on-a-neoprene-foam-for-stretchable-mri-coils
#5
Matija Varga, Andreas Mehmann, Josip Marjanovic, Jonas Reber, Christian Vogt, Klaas Paul Pruessmann, Gerhard Tröster
Stretchable conductors based on eutectic gallium-indium (eGaIn) alloy are patterned on a polychloroprene substrate (neoprene foam) using stencil printing. By tuning the amount of eGaIn on the neoprene substrate, different strain-sensitivity of electrical resistance is achieved. Conductors with a layer of eGaIn, which adsorbs to the walls of 60-100 µm wide neoprene cells, change their electrical resistance for 5% at 100% strain. When the amount of eGaIn is increased, the cells are filled with eGaIn and the strain-sensitivity of the electrical resistance rises to 300% at 100% strain...
October 13, 2017: Advanced Materials
https://www.readbyqxmd.com/read/29027564/correction-to-complete-mucosal-healing-of-distal-lesions-induced-by-twice-daily-budesonide-2-mg-foam-promoted-clinical-remission-of-mild-to-moderate-ulcerative-colitis-with-distal-active-inflammation-double-blind-randomized-study
#6
Makoto Naganuma, Nobuo Aoyama, Tomohiro Tada, Kiyonori Kobayashi, Fumihito Hirai, Kenji Watanabe, Mamoru Watanabe, Toshifumi Hibi
In Fig. 2(c) of this article, the length of the "95% CI difference bars" under the items labelled "Left-sided and Pancolitis" and "Left-sided" under the heading "Disease type" was corrected. The correct figure is shown in the following page.
October 13, 2017: Journal of Gastroenterology
https://www.readbyqxmd.com/read/29027029/3-hz-postural-tremor-in-multiple-system-atrophy-cerebellar-type-msa-c-a-static-posturography-study
#7
Xiaodi Li, Yuzhou Wang, Zhanhang Wang, Yan Xu, Wenhua Zheng
The objective of the study is to evaluate postural dysfunction of multiple system atrophy-parkinsonian type (MSA-P) and cerebellar type (MSA-C) by static posturography exam. A total of 29 MSA-P patients, 40 MSA-C patients, and 23 healthy controls (HC) were recruited and engaged in a sensory organization test (SOT). The amplitude of the postural sway was measured and transformed into energy value by Fourier analyzer. SOT scores, frequency of falls and typical 3-Hz postural tremors during the four stance tasks, and energy value in three different frequency bands were recorded and compared...
October 12, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/29026133/morphology-and-mechanics-of-fungal-mycelium
#8
M R Islam, G Tudryn, R Bucinell, L Schadler, R C Picu
We study a unique biomaterial developed from fungal mycelium, the vegetative part and the root structure of fungi. Mycelium has a filamentous network structure with mechanics largely controlled by filament elasticity and branching, and network density. We report the morphological and mechanical characterization of mycelium through an integrated experimental and computational approach. The monotonic mechanical behavior of the mycelium is non-linear both in tension and compression. The material exhibits considerable strain hardening before rupture under tension, it mimics the open cell foam behavior under compression and exhibits hysteresis and the Mullins effect when subjected to cyclic loading...
October 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29025641/polyurethane-foam-nano-hydroxyapatite-composite-as-a-suitable-scaffold-for-bone-tissue-regeneration
#9
M Meskinfam, S Bertoldi, N Albanese, A Cerri, M C Tanzi, R Imani, N Baheiraei, M Farokhi, S Farè
In bone tissue regeneration, the use of biomineralized scaffolds to create the 3D porous structure needed for well-fitting with defect size and appropriate cell interactions, is a promising alternative to autologous and heterologous bone grafts. Biomineralized polyurethane (PU) foams are here investigated as scaffold for bone tissue regeneration. Biomineralization of the foams was carried out by activation of PU surface by a two steps procedure performed for different times (1 to 4 weeks). Scaffolds were investigated for morphological, chemico-physical and mechanical properties, as well as for in vitro interaction with rat Bone Marrow Mesenchymal Stem Cells (BMSCs)...
January 1, 2018: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/29025348/safety-assessment-of-diethanolamine-and-its-salts-as-used-in-cosmetics
#10
Monice M Fiume, Bart Heldreth, Wilma F Bergfeld, Donald V Belsito, Ronald A Hill, Curtis D Klaassen, Daniel C Liebler, James G Marks, Ronald C Shank, Thomas J Slaga, Paul W Snyder, F Alan Andersen
The Cosmetic Ingredient Review (CIR) Expert Panel assessed the safety of diethanolamine and its salts as used in cosmetics. Diethanolamine functions as a pH adjuster; the 16 salts included in this rereview reportedly function as surfactants, emulsifying agents, viscosity increasing agents, hair or skin conditioning agents, foam boosters, or antistatic agents. The Panel reviewed available animal and clinical data, as well as information from previous CIR reports. Since data were not available for each individual ingredient, and since the salts dissociate freely in water, the Panel extrapolated from previous reports to support safety...
September 2017: International Journal of Toxicology
https://www.readbyqxmd.com/read/29025198/foam-dressings-for-treating-pressure-ulcers
#11
REVIEW
Rachel M Walker, Brigid M Gillespie, Lukman Thalib, Niall S Higgins, Jennifer A Whitty
BACKGROUND: Pressure ulcers, also known as pressure injuries and bed sores, are localised areas of injury to the skin or underlying tissues, or both. Dressings made from a variety of materials, including foam, are used to treat pressure ulcers. An evidence-based overview of dressings for pressure ulcers is needed to enable informed decision-making on dressing use. This review is part of a suite of Cochrane Reviews investigating the use of dressings in the treatment of pressure ulcers...
October 12, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29024413/deep-tissue-loads-in-the-seated-buttocks-on-an-off-loading-wheelchair-cushion-versus-air-cell-based-and-foam-cushions-finite-element-studies
#12
Lea Peko Cohen, Amit Gefen
For wheelchair users, a common injury is a sitting-acquired pressure ulcer (PU) which typically onsets near the interface between the ischial tuberosity (IT) and the overlying soft tissues. The risk of developing PUs can be reduced considerably if an adequate cushion is placed on the wheelchair in order to protect tissues from PUs by minimising interface mechanical loads between the body and cushion and also, exposure to internal soft tissue loads. In this work, we studied the biomechanical performances of an off-loading (OL) cushion with limited adjustability, in comparison to a standard foam cushion and a fully adjustable air-cell-based (ACB) cushion...
September 6, 2017: International Wound Journal
https://www.readbyqxmd.com/read/29024376/evaluation-of-collagen-foam-poly-l-lactic-acid-nanofiber-mesh-and-decellularized-matrices-for-corneal-regeneration
#13
Bahar Aslan, Selcan Guler, Atakan Tevlek, Halil Murat Aydin
Corneal tissue engineering efforts to obtain corneal tissue matrices through various types of materials for the replacement of damaged tissues. In this study, three different corneal constructs were prepared and evaluated in terms of morphological, optical, and biological characteristics. Type-I collagen was used to obtain collagen foam scaffolds through dehydrothermal crosslinking, while poly(l-lactic acid) (PLLA) was used to produce both random and aligned oriented electrospun corneal constructs. Bovine corneas were decellularized as third matrix...
October 12, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/29024285/effect-of-a-high-cholesterol-diet-on-lipoprotein-metabolism-and-xanthoma-formation-in-rabbits
#14
Hao Hu, Yak Gao, Jing Tang, Yaozh Zhao, Hui Wang, Hua Jiang
BACKGROUND: Xanthelasma is the most common type of cutaneous xanthoma and often occurs on the eyelids. Xanthoma has been reported to be highly correlated with abnormal lipoprotein metabolism. AIMS: In this study, we wanted to investigate the effects of a high-cholesterol diet on xanthoma formation and lipoprotein metabolism in rabbits. METHODS: In animals fed with high-cholesterol diet, deteced plasma lipid [ie, total cholesterol (TC), triglycerides (TG), and low-density lipoprotein cholesterol (L-DLC)] levels and pathology of xanthoma...
October 11, 2017: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/29023997/trans-acting-oligodeoxythymidine-phosphorothioate-triester-reagents-for-transient-transfection-optimized-and-facilitated-by-a-high-throughput-microbioreactor-system
#15
Chih-Jung Hsu, Harsh V Jain, Abasha Williams, Julie Wang, Scott C Lute, Serge L Beaucage, Kurt A Brorson
A rapid and cost-effective transient transfection method for mammalian cells is essential for screening biopharmaceuticals in early stages of development. A library of 25 amphipathic trans-acting oligodeoxythymidine phosphorothioate triester (dTtaPS) transfection reagents, carrying positively charged and lipophilic groups, has been constructed for this purpose. High-throughput screening of the library, using an imaging cytometer and an automated microbioreactor system, has led to the identification of dTtaPS(10+) as a potent transfection reagent...
October 10, 2017: Biotechnology and Applied Biochemistry
https://www.readbyqxmd.com/read/29023576/overexpression-of-tissue-nonspecific-alkaline-phosphatase-tnap-in-endothelial-cells-accelerates-coronary-artery-disease-in-a-mouse-model-of-familial-hypercholesterolemia
#16
Filippo Romanelli, AnthonyMarco Corbo, Maryam Salehi, Manisha C Yadav, Soha Salman, David Petrosian, Omid J Rashidbaigi, Jesse Chait, Jes Kuruvilla, Maria Plummer, Ilian Radichev, Kenneth B Margulies, A Martin Gerdes, Anthony B Pinkerton, José Luis Millán, Alexei Y Savinov, Olga V Savinova
OBJECTIVE: Overexpression of tissue-nonspecific alkaline phosphatase (TNAP) in endothelium leads to arterial calcification in mice. The purpose of this study was to examine the effect of elevated endothelial TNAP on coronary atherosclerosis. In addition, we aimed to examine endogenous TNAP activity in human myocardium. APPROACH AND RESULTS: A vascular pattern of TNAP activity was observed in human non-failing, ischemic, and idiopathic dilated hearts (5 per group); no differences were noted between groups in this study...
2017: PloS One
https://www.readbyqxmd.com/read/29019582/ultrasound-guided-foam-sclerotherapy-for-severe-chronic-venous-insufficiency
#17
Guilherme Camargo Gonçalves de-Abreu, Otacílio de Camargo, Márcia Fayad Marcondes de-Abreu, José Luís Braga de-Aquino
Chronic venous insufficiency is characterized by cutaneous alterations caused by venous hypertension; in severe forms, it progresses to lower limb ulcers. Lower limb varicose veins are the main cause of chronic venous insufficiency, and the classic treatment includes surgery and compressive therapy. Minimally invasive alternative treatments for varicose veins include new techniques such as venous thermal ablation using laser or radiofrequency. The use of different methods depends on clinical and anatomical factors...
September 2017: Revista do Colégio Brasileiro de Cirurgiões
https://www.readbyqxmd.com/read/29017604/il-17-differentiated-macrophages-secrete-pro-inflammatory-cytokines-in-response-to-oxidized-low-density-lipoprotein
#18
María de la Paz Sánchez-Martínez, Francisco Blanco-Favela, Mónica Daniela Mora-Ruiz, Adriana Karina Chávez-Rueda, Mariela Bernabe-García, Luis Chávez-Sánchez
BACKGROUND: Cytokines and macrophages play a central role in the development of atherosclerosis. Interleukin (IL)-17 is a pro-inflammatory cytokine with differential effects on innate immune cells. We investigated the effects of IL-17 on macrophage differentiation and foam cell formation and activation in response to oxidized low-density lipoprotein (oxLDL). METHODS: Human monocytes were treated with IL-17 to induce macrophage differentiation. As controls, human monocytes were differentiated into M1 macrophages (M1) or M2 macrophages (M2)...
October 10, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/29017559/salidroside-protects-against-foam-cell-formation-and-apoptosis-possibly-via-the-mapk-and-akt-signaling-pathways
#19
Jing Ni, Yuanmin Li, Weiming Li, Rong Guo
BACKGROUND: Foam cell formation and apoptosis are closely associated with atherosclerosis pathogenesis. We determined the effect of salidroside on oxidized low-density lipoprotein (ox-LDL)-induced foam cell formation and apoptosis in THP1 human acute monocytic leukemia cells and investigated the associated molecular mechanisms. METHODS: THP1-derived macrophages were incubated with salidroside for 5 h and then exposed to ox-LDL for 24 h to induce foam cell formation...
October 10, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/29017121/efficient-degradation-of-tetrabromobisphenol-a-via-electrochemical-sequential-reduction-oxidation-degradation-efficiency-intermediates-and-pathway
#20
Yanping Hou, Zhenbo Peng, Li Wang, Zebin Yu, Lirong Huang, Lingfang Sun, Jun Huang
Tetrabromobisphenol A (TBBPA), a toxic persistent pollutant, should be effectively removed from the environment. In this study, an electrochemical sequential reduction-oxidation system was proposed by controlling reaction atmosphere with Pd-Fe nanoparticles modified Ni foam (Pd-Fe/Ni) electrode as cathode for TBBPA degradation. To obtain an efficient Pd-Fe/Ni electrode for TBBPA degradation, various factors, like Pd loading, Fe(2+) adding amounts, were examined. The Pd-Fe/Ni electrode exhibited higher TBBPA conversion and debromination than the counterparts, due to the synergism of Fe(0) and electrochemical reduction...
October 4, 2017: Journal of Hazardous Materials
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"