keyword
MENU ▼
Read by QxMD icon Read
search

Filler G

keyword
https://www.readbyqxmd.com/read/28737792/ferromagnetic-resonance-of-nicofe2o4-nanoparticles-and-microwave-absorption-properties-of-flexible-nicofe2o4-carbon-black-poly-vinyl-alcohol-composites
#1
Gopal Datt, Chetan Kotabage, A C Abhyankar
The effect of cationic disorder and particle morphology on the ferromagnetic resonance (FMR) of NiCoFe2O4 nanoparticles (NPs) and the electromagnetic shielding effectiveness of flexible composites (wherein the nanoparticles are used as fillers) has been presented. Upon annealing at 1000 °C, spherical, ∼25 nm, single crystalline (as-prepared) NPs are transformed into octahedral, ∼200 nm, polycrystalline (annealed) NPs and change the cationic distribution significantly. The effect of shape, size and cationic distribution on the resonance properties has been discussed using the randomly-oriented anisotropic-axis model...
July 24, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28736287/novel-approach-for-selective-reduction-of-nnn-in-cigarette-tobacco-filler-and-mainstream-smoke
#2
M Lusso, I Gunduz, A Kondylis, G Jaccard, L Ruffieux, F Gadani, K Lion, A Adams, W Morris, T Danielson, U Warek, J Strickland
Research conducted during past decades to reduce the level of the tobacco specific nitrosamine N-nitrosonornicotine (NNN) and its precursor nornicotine in tobacco yielded identification of three tobacco genes encoding for cytochrome P450 nicotine demethylases converting nicotine to nornicotine. We carried out trials to investigate the effect of using tobaccos containing three non-functional nicotine demethylase genes on the selective reduction of NNN in cigarette tobacco filler and mainstream smoke. Our results indicate that the presence of non-functional alleles of the three genes reduces the level of nornicotine and NNN in Burley tobacco by 70% compared to the level observed in currently available low converter (LC) Burley tobacco varieties...
July 20, 2017: Regulatory Toxicology and Pharmacology: RTP
https://www.readbyqxmd.com/read/28723068/biomimetic-hybridization-of-kevlar-into-silk-fibroin-nanofibrous-strategy-for-improved-mechanic-properties-of-flexible-composites-and-filtration-membranes
#3
Lili Lv, Xiangsheng Han, Lu Zong, Mingjie Li, Jun You, Xiaochen Wu, Chaoxu Li
Silk, one of the strongest natural biopolymers, was hybridized with Kevlar, one of the strongest synthetic polymers, through a biomimetic nanofibrous strategy. Regenerated silk materials have outstanding properties in transparency, biocompatibility, biodegradability and sustainability, and promised the applications as diverse as in pharmaceutics, electronics, photonic devices and membranes. To compete with super mechanic properties of their natural counterpart, regenerated silk materials have been hybridized with inorganic fillers such as graphene and carbon nanotubes, but frequently losing essential mechanic flexibility...
July 19, 2017: ACS Nano
https://www.readbyqxmd.com/read/28718482/molecular-insight-into-the-mullins-effect-irreversible-disentanglement-of-polymer-chains-revealed-by-molecular-dynamics-simulations
#4
Chi Ma, Tuo Ji, Christopher G Robertson, R Rajeshbabu, Jiahua Zhu, Yalin Dong
The debate regarding the possible molecular origins of the Mullins effect has been ongoing since its discovery. Molecular dynamics (MD) simulations were carried out to elucidate the underlying mechanism of the Mullins effect. For the first time, the key characteristics associated with the Mullins effect, including (a) the majority of stress softening occurring in the first stretch, (b) continuous softening with stress increase, (c) a permanent set, and (d) recovery with heat treatment, are captured by molecular modeling...
July 18, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28708378/synthesis-of-highly-conductive-uniformly-silver-coated-carbon-nanofibers-by-electroless-deposition
#5
Xavier Cauchy, Jolanta Ewa Klemberg-Sapieha, Daniel Therriault
Noble metal coated carbon-based nanoparticles when used as electrically conductive fillers have the potential to provide excellent conductivity without the high weight and cost normally associated with metals such as silver and gold. To this effect, many attempts were made to deposit uniform layers of metals on core nanoparticles with an emphasis on silver for its high conductivity. The results so far were disheartening with the metal morphology being better described as a decoration than a coating with small effects on the electrical conductivity of the bulk particles...
July 14, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28702976/a-new-hyaluronic-acid-polymer-in-the-augmentation-and-restoration-of-labia-majora
#6
N Zerbinati, R G Haddad, A Bader, R Rauso, E D'Este, G Cipolla, A Calligaro, P Gonzalez, S Salvatore, D Serafin
Aesthetic surgery of female external genitalia has gained increasing popularity over the past decade, with reduction of the labia minora (labiaplasty) being the procedure most commonly requested and performed. Female external genitalia lose elasticity and volume with age, but few studies describe the techniques for labia majora augmentation. Currently, very few studies have investigated the effectiveness and safety of labia majora augmentation with hyaluronic acid (HA) injection. This study aims to evaluate the effectiveness and safety of labia majora augmentation with hyaluronic acid filler injection...
July 13, 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28696704/polymer-rich-composite-electrolytes-for-all-solid-state-li-s-cells
#7
Xabier Judez, Heng Zhang, Chunmei Li, Gebrekidan Gebresilassie Eshetu, Yan Zhang, José Antonio González-Marcos, Michel Armand, Lide Mercedez Rodriguez-Martinez
Polymer-rich composite electrolytes with lithium bis(fluorosulfonyl)imide/poly(ethylene oxide) (LiFSI/PEO) containing either Li-ion conducting glass ceramic (LICGC) or inorganic Al2O3 fillers are investigated in all solid-state Li-S cells. In the presence of the fillers, the ionic conductivity of the composite polymer electrolytes (CPEs) does not increase compared to the plain LiFSI/PEO electrolyte at various tested temperatures. The CPE with Al2O3 fillers improves the stability of Li/electrolyte interphase, while the Li-S cell with LICGC-based CPE delivers high sulfur utilization of 1111 mAh g-1 and areal capacity of 1...
July 11, 2017: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/28696564/microstructure-design-of-lightweight-flexible-and-high-electromagnetic-shielding-porous-multiwalled-carbon-nanotube-polymer-composites
#8
Zhihui Zeng, Hao Jin, Mingji Chen, Weiwei Li, Licheng Zhou, Xiao Xue, Zhong Zhang
Multiwalled carbon nanotube/polymer composites with aligned and isotropic micropores are constructed by a facile ice-templated freeze-drying method in a wide density range, with controllable types and contents of the nanoscale building blocks, in order to tune the shielding performance together with the considerable mechanical and electrical properties. Under the mutual promotion of the frame and porous structure, the lightweight high-performance shielding is achieved: a 2.3 mm thick sample can reach 46.7 and 21...
July 11, 2017: Small
https://www.readbyqxmd.com/read/28688321/in-vitro-degradation-of-a-3d-porous-pennisetum-purpureum-pla-biocomposite-scaffold
#9
R Revati, M S Abdul Majid, M J M Ridzuan, K S Basaruddin, M N Rahman Y, E M Cheng, A G Gibson
The in vitro degradation and mechanical properties of a 3D porous Pennisetum purpureum (PP)/polylactic acid (PLA)-based scaffold were investigated. In this study, composite scaffolds with PP to PLA ratios of 0%, 10%, 20%, and 30% were immersed in a PBS solution at 37°C for 40 days. Compression tests were conducted to evaluate the compressive strength and modulus of the scaffolds, according to ASTM F451-95. The compression strength of the scaffolds was found to increase from 1.94 to 9.32MPa, while the compressive modulus increased from 1...
June 27, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28652241/prophylactic-treatment-with-vt-1161-protects-immunosuppressed-mice-from-rhizopus-arrhizus-var-arrhizus-infection
#10
Teclegiorgis Gebremariam, Sondus Alkhazraji, Lin Lin, Nathan P Wiederhold, Edward P Garvey, William J Hoekstra, Robert J Schotzinger, Thomas F Patterson, Scott G Filler, Ashraf S Ibrahim
We compared prophylactic or continuous therapy of the investigational drug VT-1161 to posaconazole in treating murine mucormycosis due to Rhizopus arrhizus var. arrhizus In the prophylaxis studies, only VT-1161 resulted in improved survival and lowered tissue fungal burden of immunosuppressed infected mice. In the continuous therapy, VT-1161 outperformed posaconazole in prolonging mice survival time despite their comparable effect in lowering tissue fungal burden. These results support the further development of VT-1161 against mucormycosis...
June 26, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28645662/development-of-a-3d-printable-maxillofacial-silicone-part-ii-optimization-of-moderator-and-thixotropic-agent
#11
Swati K Jindal, Martyn Sherriff, Mark G Waters, James E Smay, Trevor J Coward
STATEMENT OF PROBLEM: Conventionally, maxillofacial prostheses are fabricated by hand carving the missing anatomic defect in wax and creating a mold into which pigmented silicone elastomer is placed. Digital technologies such as computer numerical control milling and 3-dimensional (3D) printing have been used to prepare molds, directly or indirectly, into which a biocompatible pigmented silicone elastomer can be placed. PURPOSE: The purpose of this in vitro study was to develop a silicone elastomer that could be 3D printed directly without a mold to create facial or body prostheses by varying its composition...
June 20, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28634301/microbial-glycoside-hydrolases-as-antibiofilm-agents-with-cross-kingdom-activity
#12
Brendan D Snarr, Perrin Baker, Natalie C Bamford, Yukiko Sato, Hong Liu, Mélanie Lehoux, Fabrice N Gravelat, Hanna Ostapska, Shane R Baistrocchi, Robert P Cerone, Elan E Filler, Matthew R Parsek, Scott G Filler, P Lynne Howell, Donald C Sheppard
Galactosaminogalactan and Pel are cationic heteropolysaccharides produced by the opportunistic pathogens Aspergillus fumigatus and Pseudomonas aeruginosa, respectively. These exopolysaccharides both contain 1,4-linked N-acetyl-d-galactosamine and play an important role in biofilm formation by these organisms. Proteins containing glycoside hydrolase domains have recently been identified within the biosynthetic pathway of each exopolysaccharide. Recombinant hydrolase domains from these proteins (Sph3h from A...
July 3, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28612940/unsupported-pt-ni-aerogels-with-enhanced-high-current-performance-and-durability-in-fuel-cell-cathodes
#13
Sebastian Henning, Hiroshi Ishikawa, Laura Kühn, Juan Herranz, Elisabeth Müller, Alexander Eychmüller, Thomas J Schmidt
Highly active and durable oxygen reduction catalysts are needed to reduce the costs and enhance the service life of polymer electrolyte fuel cells (PEFCs). This can be accomplished by alloying Pt with a transition metal (e.g. Ni) and by eliminating the corrodible, carbon based catalyst support - however, materials combining both approaches have seldom been implemented in PEFC cathodes. In this work, an unsupported Pt-Ni alloy nanochain ensemble (aerogel) demonstrates high current PEFC performance commensurate with that of a carbon supported benchmark (Pt/C) following optimization of the aerogel's catalyst layer (CL) structure...
June 14, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28585452/how-scenes-containing-visual-errors-affect-speech-fluency-in-young-and-older-adults
#14
Lori E James, Brittany N Chambers, Chelsea L Placzek
We compared young and older adults' speech during an error detection task, with some pictures containing visual errors and anomalies and other pictures error-free. We analyzed three disfluency types: mid-phrase speech fillers (e.g., It's a little, um, girl), repetitions (e.g., He's trying to catch the- the birds), and repairs (e.g., She- you can see her legs). Older adults produced more mid-phrase fillers than young adults only when describing pictures containing errors. These often reflect word retrieval problems and represent clear disruptions to fluency, so this interaction indicates that the need to form and maintain representations of novel information can specifically compromise older adults' speech fluency...
June 6, 2017: Neuropsychology, Development, and Cognition. Section B, Aging, Neuropsychology and Cognition
https://www.readbyqxmd.com/read/28571274/reinforcement-of-aluminum-oxide-filler-on-the-flexural-strength-of-different-types-of-denture-base-resins-an-in-vitro-study
#15
Rohit I Dhole, G Srivatsa, Rohit Shetty, Dayanand Huddar, Banashree Sankeshwari, Swapnil Chopade
INTRODUCTION: Acrylic resins have been used extensively for the fabrication of denture bases because of their aesthetic qualities, ease of manipulation and repairability. Flexural fatigue of the denture base has been shown to be a factor in the clinical failure of polymethyl methacrylate resin dentures. Also, the fracture can result from impact, fatigue or degradation of the base material. Hence, there is a need to increase the strength of denture base resins. AIM: To evaluate the effect of reinforcing alumina oxide filler on the flexural strength of different acrylic resins...
April 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28558470/flexible-ultrathin-and-high-efficiency-electromagnetic-shielding-properties-of-poly-vinylidene-fluoride-carbon-composite-films
#16
Biao Zhao, Chongxiang Zhao, Ruosong Li, S Mahdi Hamidinejad, Chul B Park
In this study, we fabricated conductive poly(vinylidene fluoride) (PVDF)/carbon composites simply by dispersing multiwalled carbon nanotubes (MWCNTs) and graphene nanoplatelets into a PVDF solution. The electrical conductivity and the electromagnetic interference (EMI) shielding of the PVDF/carbon composites were increased by increasing the conductive carbon filler amounts. Moreover, we also found that the EMI shielding properties of the PVDF/CNT/graphene composites were higher than those of PVDF/CNT and PVDF/graphene composites...
June 21, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28553050/successful-treatment-of-multiple-angiomyolipomas-with-sirolimus-in-a-child
#17
K Pabedinskas, M Kobrzynski, G Filler
Tuberous sclerosis complex frequently results in the formation of renal angiomyolipomas (AMLs). Sirolimus (SIR) or everolimus can be used to treat large AMLs, although this treatment has rarely been described in children, particularly for multiple renal AMLs. A 15-year-old girl presented with bilateral severe chronic flank pain coinciding with increased renal size and hundreds of renal AMLs. We opted to treat her with SIR over the course of 3.5 years. Following her treatment, her renal size had substantially decreased and the AMLs had shrunk...
May 2017: Indian Journal of Nephrology
https://www.readbyqxmd.com/read/28542917/characterizing-the-performance-of-pipe-bombs
#18
Jimmie C Oxley, James L Smith, Evan T Bernier, Fredrick Sandstrom, Gregory G Weiss, Gunther W Recht, David Schatzer
Pipe bombs of steel or PVC fragment in reproducible patterns when similarly configured. The power of the explosion correlates with number, mass, and size of the fragments recovered, where a large number of small, low-mass fragments indicate a high-power event and vice versa. In discussing performance, describing pipe fragmentation pattern by fragment weight distribution mapping (FWDM) or fragment surface area distribution mapping (FSADM) was useful. When fillers detonated, detonation velocities of ~4.4 mm/μs were measured...
May 24, 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/28535357/effects-of-composites-containing-bioactive-glasses-on-demineralized-dentin
#19
A Tezvergil-Mutluay, R Seseogullari-Dirihan, V P Feitosa, G Cama, D S Brauer, S Sauro
The aim of this study was to evaluate the degradation of completely demineralized dentin specimens in contact with a filler-free or 2 ion-releasing resins containing micrometer-sized particles of Bioglass 45S5 (BAG) or fluoride-containing phosphate-rich bioactive glass (BAG-F). Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM) were also used to evaluate the remineralization induced by the experimental ion-releasing resin-based materials. Dentin beams were totally demineralized in H3PO4 (10%) and placed in direct contact with a filler-free (RESIN) or 2 experimental ion-releasing resins (BAG or BAG-F) and immersed in artificial saliva (AS) up to 30 d...
August 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28522161/effect-of-blue-and-violet-light-on-polymerization-shrinkage-vectors-of-a-cq-tpo-containing-composite
#20
Camila S Sampaio, Pablo J Atria, Frederick A Rueggeberg, Satoshi Yamaguchi, Marcelo Giannini, Paulo G Coelho, Ronaldo Hirata, Regina M Puppin-Rontani
OBJECTIVE: To evaluate the effect of light-curing wavelengths on composite filler particle displacement, and thus to visualize localized polymerization shrinkage in a resin-based composite (RBC) containing camphorquinone (CQ) and Lucirin TPO (TPO). METHODS: Three light-curing units (LCUs) were used to light-cure a RBC containing CQ and TPO: a violet-only, a blue-only, and a dual-wavelength, conventional (Polywave(®), emitting violet and blue wavelengths simultaneously)...
July 2017: Dental Materials: Official Publication of the Academy of Dental Materials
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"