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https://www.readbyqxmd.com/read/28107466/thermal-conductivity-performance-of-polypropylene-composites-filled-with-polydopamine-functionalized-hexagonal-boron-nitride
#1
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/28102016/mechanical-and-barrier-properties-of-maize-starch-gelatin-composite-film-effects-of-amylose-content
#2
Kun Wang, Wenhang Wang, Ran Ye, Jingdong Xiao, Yaowei Liu, Junsheng Ding, Shaojing Zhang, Anjun Liu
BACKGROUND: In order to obtain new reinforcing bio-fillers to improve the physicochemical properties of gelatin based film, three types of maize starches: waxy maize starch (Ap), normal starch (Ns), and high amylose starch (Al), were incorporated into the gelatin films, and their properties were investigated, focusing on the impact of amylose content. RESULTS: The thickness, opacity and roughness of gelatin films increased depending upon amylose content along with the concentration of starch...
January 19, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28101535/the-case-for-adopting-the-species-complex-nomenclature-for-the-etiologic-agents-of-cryptococcosis
#3
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/28100087/a-uhf-rfid-positioning-system-for-use-in-warehouse-navigation-by-employees-with-cognitive-disability
#4
Eric J M Gunther, Levin J Sliker, Cathy Bodine
Unemployment among the almost 5 million working-age adults with cognitive disabilities in the USA is a costly problem in both tax dollars and quality of life. Job coaching is an effective tool to overcome this, but the cost of job coaching services sums with every new employee or change of employment roles. There is a need for a cost-effective, automated alternative to job coaching that incurs a one-time cost and can be reused for multiple employees or roles. An effective automated job coach must be aware of its location and the location of destinations within the job site...
January 18, 2017: Disability and Rehabilitation. Assistive Technology
https://www.readbyqxmd.com/read/28099202/early-changes-in-facial-profile-following-structured-filler-rhinoplasty-an-anthropometric-analysis-using-a-3-dimensional-imaging-system
#5
Nark Kyoung Rho, Je Young Park, Choon Shik Youn, Soo-Keun Lee, Hei Sung Kim
BACKGROUND: Quantitative measurements are important for objective evaluation of postprocedural outcomes. Three-dimensional (3D) imaging is known as an objective, accurate, and reliable system for quantifying the soft tissue dimensions of the face. OBJECTIVE: To compare the preprocedural and acute postprocedural nasofrontal, nasofacial, nasolabial, and nasomental angles, early changes in the height and length of the nose, and nasal volume using a 3D surface imaging with a light-emitting diode...
January 17, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28097862/dynamic-self-stiffening-and-structural-evolutions-of-polyacrylonitrile-carbon-nanotube-nanocomposites
#6
Yinhui Li, Pucha Zhou, Feng An, Yaodong Liu, Chunxiang Lu
The self-stiffening under external dynamic strain has been observed for some artificial materials, especially for nanocomposites. However, few systematic studies have been carried out on their structural evolutions and the effect of the types of nano-fillers was unclear. In this study, we used a semi-crystalline polymer, polyacrylonitrile (PAN), and various types of carbon nanomaterials including C60, carbon nanotube (CNT) and graphene oxide (GO). An external uniaxial dynamic strain at small amplitude of 0...
January 18, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28096117/commentary-on-an-anatomical-analysis-of-the-supratrochlear-artery-considerations-in-facial-filler-injections-and-preventing-vision-loss
#7
Ramin Fathi, Brian Biesman, Joel L Cohen
No abstract text is available yet for this article.
February 2017: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/28095983/application-of-close-packed-structures-in-dental-resin-composites
#8
Ruili Wang, Eric Habib, X X Zhu
OBJECTIVE: The inorganic filler particles in dental resin composites serve to improve their mechanical properties and reduce polymerization shrinkage during their use. Efforts have been made in academia and industry to increase the filler particle content, but, few studies examine the theoretical basis for the maximum particle loading. METHODS: This work evaluates the packing of spherical particles in a close-packed state for highly loaded composites. RESULTS: Calculations show that for low dispersity particles, the maximum amount of particles is 74...
January 14, 2017: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/28095576/facial-contouring-with-fillers-neuromodulators-and-lipolysis-to-achieve-a-natural-look-in-patients-with-facial-fullness
#9
Chytra Anand
BACKGROUND: The desire for and use of nonsurgical injectable esthetic facial treatments is on a rise in Asia. Recent advances, including more versatile facial fillers, refined injection techniques, and adoption of a global facial approach, have in turn contributed to improved patient outcomes and increased patient satisfaction. The sought after nonsurgical treatments include the use of botulinum toxin, con- touring of the face with soft tissue fillers, and thinning of the face with injection lipolysis...
December 1, 2016: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28095575/review-of-periorbital-and-upper-face-pertinent-anatomy-aging-injection-techniques-prevention-and-management-of-complications-of-facial-fillers
#10
Julie Woodward
This paper aims to review articles related to facial fillers in the periorbital area, forehead, and temple. Anatomy, anatomical changes with aging, techniques of rejuvenation and facial harmonization with fillers are reviewed. Topics for complication prevention and management including knowledge of danger zones, timing of hyaluronidase injections, aspiration, definition a small aliquot, and thoughts about particle size are discussed. J Drugs Dermatol. 2016;15(12):1524-1531.
December 1, 2016: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28094912/strong-strain-sensing-performance-of-natural-rubber-nanocomposites
#11
Tamil Selvan Natarajan, Eshwaran Subramani Bhagavatheswaran, Klaus Werner Stöckelhuber, Sven Wiessner, Petra Potschke, Gert Heinrich, Amit Das
A detail study concerning the strain (tensile) dependent electrical conductivity of elastomeric composites is reported in this present paper. Multiwall carbon nanotubes (CNT), conducting carbon black (CB) and their combinations were considered as conducting filler in crosslinked natural rubber matrix. The loadings of the fillers were considered from 3 to 11 phr (filler concentration close to their percolation threshold). Without hindering the elastic nature of the composite (reversible stretchability up to several 100 %), the change of relative resistance, ∆R/R (∆R is the change in the resistance with respect to strain and R is the initial resistance of the sample) of the CB filled composites was found to be as much as ~1300 at around 120 % elongation...
January 17, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28094023/monodisperse-silica-filled-composite-restoratives-mechanical-and-light-transmission-properties
#12
Eric Habib, Ruili Wang, X X Zhu
OBJECTIVES: The aim of this study was to formulate resin-based composites using spherical silica particulate fillers with graded size (75, 150, 350, 500, and 1000nm), and to evaluate the influence of their size and loading on the mechanical and light transmission properties of the resulting material. METHODS: A series of five spherical silica fillers were synthesized, and then formulated with BisGMA/TEGDMA or UDMA/TEGDMA resins. These were then tested for maximum filler loading, flexural strength and modulus, as well as transparency and depth of cure...
January 13, 2017: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/28093364/fabrication-of-nanofibrous-electrospun-scaffolds-from-a-heterogeneous-library-of-co-and-self-assembling-peptides
#13
Mahboubeh Maleki, Antonino Natalello, Raffaele Pugliese, Fabrizio Gelain
: Self-assembling (SAPs) and co-assembling peptides (CAPs) are driving increasing enthusiasm as synthetic but biologically inspired biomaterials amenable of easy functionalization for regenerative medicine. On the other hand, electrospinning (ES) is a versatile technique useful for tailoring the nanostructures of various biomaterials into scaffolds resembling the extracellular matrices found in organs and tissues. The synergistic merging of these two approaches is a long-awaited advance in nanomedicine that has not been deeply documented so far...
January 13, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28088693/reinforcement-of-a-pmma-resin-for-interim-fixed-prostheses-with-silica-nanoparticles
#14
Marianthi Topouzi, Eleana Kontonasaki, Dimitrios Bikiaris, Lambrini Papadopoulou, Konstantinos M Paraskevopoulos, Petros Koidis
PURPOSE: Fractures in long span provisional/interim restorations are a common complication. Adequate fracture toughness is necessary to resist occlusal forces and crack propagation, so these restorations should be constructed with materials of improved mechanical properties. The aim of this study was to investigate the possible reinforcement of neat silica nanoparticles and trietoxyvinylsilane-modified silica nanoparticles in a PMMA resin for fixed interim restorations. MATERIALS AND METHODS: Composite PMMA-Silica nanoparticles powders were mixed with PMMA liquid and compact bar shaped specimens were fabricated according to the British standard BS EN ISO 127337:2005...
January 9, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28088453/improving-the-translation-of-novel-biomarkers-to-clinical-practice-the-story-of-cystatin-c-implementation-in-canada-a-professional-practice-column
#15
Ola Z Ismail, Vipin Bhayana, Michael Kadour, Nathalie Lepage, Manjula Gowrishankar, Guido Filler
No abstract text is available yet for this article.
January 11, 2017: Clinical Biochemistry
https://www.readbyqxmd.com/read/28081240/oropharyngeal-candidiasis-fungal-invasion-and-epithelial-cell-responses
#16
Marc Swidergall, Scott G Filler
No abstract text is available yet for this article.
January 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28080021/an-ionic-liquid-as-interface-linker-for-tuning-piezoresistive-sensitivity-and-toughness-in-poly-vinylidene-fluoride-carbon-nanotube-composites
#17
Kai Ke, Petra Potschke, Shanglin Gao, Brigitte Voit
Conductive polymer nanocomposites (CPNCs) have emerged as potential alternatives for metallic foil sensors and semiconductor strain gauges. The simultaneous achievement of high piezoresistive sensitivity and large strain ranges for CPNCs currently presents a great challenge, possibly extending the applications of CPNCs with self-diagnosis capabilities to many structural health monitoring (SHM) systems. Here, we report a facile strategy for fabricating highly piezoresistive and tough poly (vinylidene fluoride) (PVDF) based CPNCs by tuning the interactions between the polymer matrix and multi-walled carbon nanotubes (CNT) using an ionic liquid (IL) as an interface linker/modifier...
January 12, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28078336/design-of-latex-layered-double-hydroxide-composites-by-tuning-the-aggregation-in-suspensions
#18
Marko Pavlovic, Paul Rouster, Elodie Bourgeat-Lami, Vanessa Prevot, Istvan Szilagyi
Colloidal stability of polymeric latex particles was studied in the presence of oppositely charged layered double hydroxide (LDH) platelets of different interlayer anions. Adsorption of the LDH particles led to charge neutralization and to overcharging of the latex at appropriate concentrations. Mixing stable colloidal suspensions of individual particles results in rapid aggregation once the LDH adsorption neutralizes the negative charges of the polymer spheres, while stable suspensions were observed at high and low LDH doses...
January 12, 2017: Soft Matter
https://www.readbyqxmd.com/read/28070263/evaluating-the-microshear-bond-strength-and-microleakage-of-flowable-composites-containing-zinc-oxide-nano-particles
#19
Koorosh Teymoornezhad, Homayoun Alaghehmand, Ghazaleh Daryakenari, Soraya Khafri, Mitra Tabari
INTRODUCTION: Preventive resin restorations (PRR) are the conservative choice for the most common carious lesions in children. Thus, new age flowable resin composites with higher filler content are readily used. The aim of this study was to evaluate the microshear bond strength and microleakage of two flowable resin composites containing different percentages of nano zinc oxide (NZnO) particles, which have proven to have antimicrobial properties. METHODS: This experimental in-vitro study was carried out in the Dental Material Research Center of Babol University of Medical Sciences in 2015...
November 2016: Electronic Physician
https://www.readbyqxmd.com/read/28069316/-hyaluronic-acid-rheology-basics-and-clinical-applications-in-facial-rejuvenation
#20
R Billon, B Hersant, J P Meningaud
Hyaluronic acid (HA) is the most widely used dermal filler to treat facial volume deficits and winkles specially for facial rejuvenation. Depending on various areas of the face, filler is exposed to two different forces (shear deformation and compression/stretching forces) resulting from intrinsec and external mechanical stress. The purpose of this technical note is to explain how rheology, which is the study of the flow and deformation of matter under strains, can be used in our clinical practice of facial volumization with fillers...
January 6, 2017: Annales de Chirurgie Plastique et Esthétique
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