keyword
MENU ▼
Read by QxMD icon Read
search

Filler G

keyword
https://www.readbyqxmd.com/read/28212979/degradation-of-optical-and-surface-properties-of-resin-based-composites-with-distinct-nanoparticle-sizes-but-equivalent-surface-area
#1
Vinícius Esteves Salgado, Larissa Maria Cavalcante, Rafael R Moraes, Harry B Davis, Jack L Ferracane, Luis Felipe Schneider
OBJECTIVE: To determine the optical and surface properties of model resin-based composites made with distinct nanoparticle sizes but equalized surface area, among them, before and after ageing. METHODS: Model resin-based composites based on BisGMA/TEGDMA (50:50mol%) were loaded with three different fumed silica filler content (7nm/examethyldisilazane, 12nm/octylsilane, and 16nm/dimethylchlorosilane), but with equivalent surface area (BET method). The optical and surface properties of the disk-shaped specimens were measured in 24h after photoactivation (baseline) and repeated after water storage (90days at 37°C), and after abrasion (20,000 cycles of brushing)...
February 14, 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/28205372/zein-based-composites-in-biomedical-applications
#2
Merve Demir, Laura Ramos-Rivera, Raquel Silva, Showan N Nazhat, Aldo R Boccaccini
Considerable research efforts have been devoted to zein based biomaterials for tissue engineering and other biomedical applications over the past decade. The attention given to zein based polymers is primarily attributed to their biocompatibility and biodegradability. However, due to the relatively low mechanical properties of these polymers, numerous inorganic compounds (e.g, hydroxyapatite, calcium phosphate, bioactive glasses, natural clays) have been considered in combination with zein to create composite materials in an attempt to enhance zein mechanical properties...
February 16, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28192532/role-of-arf-gtpases-in-fungal-morphogenesis-and-virulence
#3
Hayet Labbaoui, Stéphanie Bogliolo, Vikram Ghugtyal, Norma V Solis, Scott G Filler, Robert A Arkowitz, Martine Bassilana
Virulence of the human fungal pathogen Candida albicans depends on the switch from budding to filamentous growth, which requires sustained membrane traffic and polarized growth. In many organisms, small GTPases of the Arf (ADP-ribosylation factor) family regulate membrane/protein trafficking, yet little is known about their role in fungal filamentous growth. To investigate these GTPases in C. albicans, we generated loss of function mutants in all 3 Arf proteins, Arf1-Arf3, and 2 Arf-like proteins, Arl1 and Arl3...
February 13, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28174007/comparative-analysis-of-the-mechanical-properties-of-fiber-and-stainless-steel-multistranded-wires-used-for-lingual-fixed-retention
#4
O Annousaki, S Zinelis, G Eliades, T Eliades
OBJECTIVE: To evaluate the effect of different resins used for the co-polymerization of EverStick fiber-reinforced fixed orthodontic retainer on its mechanical properties and to compare the mechanical properties of these configurations to commonly used multistrand wires. MATERIALS AND METHODS: Ten 0.0175-in. WildCat (WC175), ten 0.0215-in. WildCat (WC215) three-strand twisted wires and thirty EverStick fibers were tested in this study. The EverStcik fibers were equally shared in three groups (n=10)...
February 4, 2017: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/28165349/a-prospective-open-label-observational-postmarket-study-evaluating-vyc-17-5l-for-the-correction-of-moderate-to-severe-nasolabial-folds-over-12-months
#5
Gerhard Sattler, Wolfgang G Philipp-Dormston, Helga Van Den Elzen, Cornelius Van Der Walt, Myooran Nathan, Julia Kolodziejczyk, Graeme Kerson, Benjeev Dhillon
BACKGROUND: VYC-17.5L (17.5 mg/mL hyaluronic acid, 0.3% lidocaine) is a dermal filler intended for deep dermis injection for the treatment of skin depressions. OBJECTIVE: To evaluate 12-month effectiveness and safety of VYC-17.5L for the treatment of moderate/severe nasolabial folds (NLFs). METHODS: Subjects ≥18 years old with moderate/severe NLFs were recruited (N = 70). Injected volume was aimed at achieving optimum correction; top-up treatment was given at 2 weeks if needed...
February 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28157728/safety-and-effectiveness-of-vyc-15l-a-hyaluronic-acid-filler-for-lip-and-perioral-enhancement-one-year-results-from-a-randomized-controlled-study
#6
Roy G Geronemus, David E Bank, Bhushan Hardas, Ava Shamban, Barry M Weichman, Diane K Murphy
BACKGROUND: VYC-15L (Juvéderm Volbella XC) is a nonanimal crosslinked hyaluronic acid (HA) gel with lidocaine. OBJECTIVE: To evaluate the safety and effectiveness of VYC-15L for lip and perioral enhancement versus a nonanimal stabilized HA with lidocaine (Restylane-L; NASHA). METHODS: This prospective multicenter study randomized 225 adults with minimal, mild, or moderate lip fullness on the validated 5-point Allergan Lip Fullness Scale (LFS) to treatment with VYC-15L or NASHA; optional touch-up was administered 30 days later...
February 1, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28121071/colloidal-gold-nanoclusters-spiked-silica-fillers-in-mixed-matrix-coatings-simultaneous-detection-and-inhibition-of-healthcare-associated-infections
#7
Shahad K Alsaiari, Mohammed A Hammami, Jonas G Croissant, Haneen W Omar, Pradeep Neelakanda, Tahir Yapici, Klaus-Viktor Peinemann, Niveen M Khashab
Healthcare-associated infections (HAIs) are the infections that patients get while receiving medical treatment in a medical facility with bacterial HAIs being the most common. Silver and gold nanoparticles (NPs) have been successfully employed as antibacterial motifs; however, NPs leaching in addition to poor dispersion and overall reproducibility are major hurdles to further product development. In this study, the authors design and fabricate a smart antibacterial mixed-matrix membrane coating comprising colloidal lysozyme-templated gold nanoclusters as nanofillers in poly(ethylene oxide)/poly(butylene terephthalate) amphiphilic polymer matrix...
January 25, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28107466/thermal-conductivity-performance-of-polypropylene-composites-filled-with-polydopamine-functionalized-hexagonal-boron-nitride
#8
Lin Chen, Hong-Fei Xu, Shao-Jian He, Yi-Hang Du, Nan-Jie Yu, Xiao-Ze Du, Jun Lin, Sergei Nazarenko
Mussel-inspired approach was attempted to non-covalently functionalize the surfaces of boron nitride (BN) with self-polymerized dopamine coatings in order to reduce the interfacial thermal barrier and enhance the thermal conductivity of BN-containing composites. Compared to the polypropylene (PP) composites filled with pristine BN at the same filler content, thermal conductivity was much higher for those filled with both functionalized BN (f-BN) and maleic anhydride grafted PP (PP-g-ma) due to the improved filler dispersion and better interfacial filler-matrix compatibility, which facilitated the development of more thermal paths...
2017: PloS One
https://www.readbyqxmd.com/read/28101535/the-case-for-adopting-the-species-complex-nomenclature-for-the-etiologic-agents-of-cryptococcosis
#9
Kyung J Kwon-Chung, John E Bennett, Brian L Wickes, Wieland Meyer, Christina A Cuomo, Kurt R Wollenburg, Tihana A Bicanic, Elizabeth Castañeda, Yun C Chang, Jianghan Chen, Massimo Cogliati, Françoise Dromer, David Ellis, Scott G Filler, Matthew C Fisher, Thomas S Harrison, Steven M Holland, Shigeru Kohno, James W Kronstad, Marcia Lazera, Stuart M Levitz, Michail S Lionakis, Robin C May, Popchai Ngamskulrongroj, Peter G Pappas, John R Perfect, Volker Rickerts, Tania C Sorrell, Thomas J Walsh, Peter R Williamson, Jianping Xu, Adrian M Zelazny, Arturo Casadevall
Cryptococcosis is a potentially lethal disease of humans/animals caused by Cryptococcus neoformans and Cryptococcus gattii. Distinction between the two species is based on phenotypic and genotypic characteristics. Recently, it was proposed that C. neoformans be divided into two species and C. gattii into five species based on a phylogenetic analysis of 115 isolates. While this proposal adds to the knowledge about the genetic diversity and population structure of cryptococcosis agents, the published genotypes of 2,606 strains have already revealed more genetic diversity than is encompassed by seven species...
January 2017: MSphere
https://www.readbyqxmd.com/read/28081240/oropharyngeal-candidiasis-fungal-invasion-and-epithelial-cell-responses
#10
Marc Swidergall, Scott G Filler
No abstract text is available yet for this article.
January 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28033645/the-facial-adipose-tissue-a-revision
#11
Ilja Kruglikov, Oscar Trujillo, Quick Kristen, Kerelos Isac, Julia Zorko, Maria Fam, Kasie Okonkwo, Asima Mian, Hyunh Thanh, Konstantin Koban, Anthony P Sclafani, Hanno Steinke, Sebastian Cotofana
Recent advantages in the anatomical understanding of the face have turned the focus toward the subcutaneous and deep facial fat compartments. During facial aging, these fat-filled compartments undergo substantial changes along with other structures in the face. Soft tissue filler and fat grafting are valid methods to fight the signs of facial aging, but little is known about their precise effect on the facial fat. This narrative review summarizes the current knowledge about the facial fat compartments in terms of anatomical location, histologic appearance, immune-histochemical characteristics, cellular interactions, and therapeutic options...
December 2016: Facial Plastic Surgery: FPS
https://www.readbyqxmd.com/read/28029106/differences-between-graphene-and-graphene-oxide-in-gelatin-based-systems-for-transient-biodegradable-energy-storage-applications
#12
G Landi, A Sorrentino, S Iannace, H C Neitzert
A comparison between graphene flakes and graphene oxide as filler in gelatin based systems for low-cost transient biodegradable energy storage applications has been carried out. The two bio-composites have been prepared and characterized by rheological measurements, cyclic voltammetry measurements, chronopotentiometry measurements and impedance spectroscopy. Differences in dielectric and mechanical properties have been correlated to the different structural organizations determinate by the hydrophobic/hydrophilic character of the used filler...
February 3, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28001416/tobacco-specific-nitrosamines-in-the-tobacco-and-mainstream-smoke-of-u-s-commercial-cigarettes
#13
Selvin H Edwards, Lana M Rossiter, Kenneth M Taylor, Matthew R Holman, Liqin Zhang, Yan S Ding, Clifford H Watson
Tobacco-specific nitrosamines (TSNAs) are N-nitroso-derivatives of pyridine-alkaloids (e.g., nicotine) present in tobacco and cigarette smoke. Two TSNAs, N'-nitrosonornicotine (NNN) and 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK), are included on the Food and Drug Administration's list of harmful and potentially harmful constituents (HPHCs) in tobacco products and tobacco. The amounts of four TSNAs (NNK, NNN, N-nitrosoanabasine (NAB), and N'-nitrosoanatabine (NAT)) in the tobacco and mainstream smoke from 50 U...
February 20, 2017: Chemical Research in Toxicology
https://www.readbyqxmd.com/read/28001352/high-flux-graphene-oxide-membranes-intercalated-by-metal-organic-framework-with-highly-selective-separation-of-aqueous-organic-solution
#14
Yunpan Ying, Dahuan Liu, Weixin Zhang, Jing Ma, Hongliang Huang, Qingyuan Yang, Chongli Zhong
Graphene oxide (GO) membranes assembled by single-atom thick GO nanosheets have displayed huge potential application both in gas and liquid separation processes due to its facile and large-scale preparation resulting from various functional groups, such as hydroxyl, carboxyl, and epoxide groups. Taking advantage of these characters, GO membranes intercalated by superhydrophilic metal-organic frameworks (MOFs) as strengthening separation fillers were prepared on modified polyacrylonitrile (PAN) support by a novel pressure-assisted self-assembly (PASA) filtration technique instead of traditional vacuum filtration method for the first time...
January 18, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/27987956/chemical-treatment-and-characterization-of-soybean-straw-and-soybean-protein-isolate-straw-composite-films
#15
Milena Martelli-Tosi, Odílio B G Assis, Natália C Silva, Bruno S Esposto, Maria Alice Martins, Delia R Tapia-Blácido
This work investigated changes in the chemical composition and structure of soybean straw (SS) treated with alkali (NaOH 5% and 17.5%) and bleached with hydrogen peroxide (H2O2) or sodium hypochlorite (NaOCl). Removal of the amorphous constituents increased the degree of crystallinity and the content of cellulose fibers particularly after reaction with high concentrations of alkali. Treatment with NaOH 17.5% contributed to the allomorph transition from cellulose I to II regardless of the bleaching agent, but H2O2 as bleaching agent promoted more effective delignification...
February 10, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/27923704/il-17-receptor-signaling-in-oral-epithelial-cells-is-critical-for-protection-against-oropharyngeal-candidiasis
#16
Heather R Conti, Vincent M Bruno, Erin E Childs, Sean Daugherty, Joseph P Hunter, Bemnet G Mengesha, Danielle L Saevig, Matthew R Hendricks, Bianca M Coleman, Lucas Brane, Norma Solis, J Agustin Cruz, Akash H Verma, Abhishek V Garg, Amy G Hise, Jonathan P Richardson, Julian R Naglik, Scott G Filler, Jay K Kolls, Satrajit Sinha, Sarah L Gaffen
Signaling through the IL-17 receptor (IL-17R) is required to prevent oropharyngeal candidiasis (OPC) in mice and humans. However, the IL-17-responsive cell type(s) that mediate protection are unknown. Using radiation chimeras, we were able to rule out a requirement for IL-17RA in the hematopoietic compartment. We saw remarkable concordance of IL-17-controlled gene expression in C. albicans-infected human oral epithelial cells (OECs) and in tongue tissue from mice with OPC. To interrogate the role of the IL-17R in OECs, we generated mice with conditional deletion of IL-17RA in superficial oral and esophageal epithelial cells (Il17ra(ΔK13))...
November 9, 2016: Cell Host & Microbe
https://www.readbyqxmd.com/read/27923700/continuous-monitoring-of-api-content-api-distribution-and-crushing-strength-after-tableting-via-near-infrared-chemical-imaging
#17
P R Wahl, I Pucher, O Scheibelhofer, M Kerschhaggl, S Sacher, J G Khinast
Near-infrared chemical imaging (NIR-CI) with high-speed cameras based on the push-broom acquisition principle is a rapidly-evolving and can be used for a variety of purposes, from classification (and sorting) of products to mapping spatial distribution of materials. The present study examined if NIR-CI is suitable for tablet manufacturing. To that end, the tablets were introduced into the CI system via a flat belt conveyor. A formulation, which consisted of 4wt.%-6wt.% caffeine, 5wt.% crospovidone as a disintegrant, 88wt...
December 5, 2016: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/27909354/the-comprehension-of-sentences-with-unaccusative-verbs-in-aphasia-a-test-of-the-intervener-hypothesis
#18
Natalie Sullivan, Matthew Walenski, Tracy Love, Lewis P Shapiro
BACKGROUND: It is well accepted that individuals with agrammatic Broca's aphasia have difficulty comprehending some sentences with filler-gap dependencies. While investigations of these difficulties have been conducted with several different sentence types (e.g., object relatives, Wh-questions), we explore sentences containing unaccusative verbs, which arguably have a single noun phrase (NP) that is base-generated in object position but then is displaced to surface subject position. Unaccusative verbs provide an ideal test case for a particular hypothesis about the comprehension disorder-the Intervener Hypothesis-that posits that the difficulty individuals with agrammatic Broca's aphasia have comprehending sentences containing filler-gap dependencies results from similarity-based interference caused by the presence of an intervening NP between the two elements of a syntactic chain...
2017: Aphasiology
https://www.readbyqxmd.com/read/27906442/the-role-of-fillers-in-aesthetic-medicine-medico-legal-aspects
#19
E Marinelli, G Montanari Vergallo, G Reale, A di Luca, I Catarinozzi, S Napoletano, S Zaami
In recent years there has been an exponential increase of fillers use in aesthetic medicine. The popularity of this anti-wrinkle product is based on their capacity to offer significant improvement in the aesthetic field, particularly to skin rejuvenating processes with non-invasive and less expensive techniques, if compared to the surgical methods (i.e. surgical lifting). The great number of fillers on the market is composed of a large heterogenic number of biomaterials. The aim of this review was to provide an overview and a classification of the filling materials that are most commonly used...
November 2016: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/27892592/mechanical-properties-and-current-carrying-capacity-of-al-reinforced-with-graphene-bn-nanoribbons-a-computational-study
#20
D G Kvashnin, M Ghorbani-Asl, D V Shtansky, D Golberg, A V Krasheninnikov, P B Sorokin
Record high values of Young's modulus and tensile strength of graphene and BN nanoribbons as well as their chemically active edges make them promising candidates for serving as fillers in metal-based composite materials. Herein, using ab initio and analytical potential calculations we carry out a systematic study of the mechanical properties of nanocomposites constructed by reinforcing an Al matrix with BN and graphene nanoribbons. We consider a simple case of uniform distribution of nanoribbons in an Al matrix under the assumption that such configuration will lead to the maximum enhancement of mechanical characteristics...
December 8, 2016: Nanoscale
keyword
keyword
95007
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"