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https://www.readbyqxmd.com/read/28432417/exploring-the-possibility-of-a-retrograde-embolism-pathway-from-the-facial-artery-to-the-ophthalmic-artery-system-in-vivo
#1
Hui Zheng, Lihong Qiu, Zonghui Liu, Yingjun Su, Xinyuan Pan, Sha Liu, Chenggang Yi
BACKGROUND: Blindness caused by soft tissue fillers is an extremely low-probability event, but it results in great concern because of its devastating consequences. Currently, the mechanism of an embolism is usually considered to be an accidental injection of fillers into the blood vessels of the face, such as a facial artery, and then retrograding into the ophthalmic artery system, which causes retinal ischemic necrosis. In addition, previous studies have shown that there are anastomoses between facial arteries and branches of the ophthalmic artery in cadavers...
April 21, 2017: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/28424498/efficacy-and-safety-of-a-newly-developed-polylactic-acid-microsphere-as-an-injectable-bulking-agent-for-penile-augmentation-18-months-follow-up
#2
D Y Yang, K Ko, S H Lee, D G Moon, J W Kim, W K Lee
Polylactic acid (PLA) fillers are widely used for cosmetic volume augmentation. But, no study has evaluated the use of PLA filler in penile augmentation (PA No. 4). We evaluated the efficacy and safety of a newly developed PLA filler for PA during a 18-month follow-up period. A total of 23 healthy adult men were prospectively enrolled between June and November 2012. Penile girth was measured at proximal-, mid- and distal-shaft at baseline, 3, 6, 12 and 18 months following injection. Subjects' satisfaction was assessed with visual analogue scale (VAS)...
April 20, 2017: International Journal of Impotence Research
https://www.readbyqxmd.com/read/28401212/filler-flocculation-in-polymers-a-simplified-model-derived-from-thermodynamics-and-game-theory
#3
K W Stöckelhuber, S Wießner, A Das, G Heinrich
The performance of elastomeric materials, i.e. in car tires, is substantially determined by the used reinforcing filler system. In particular, the flocculation tendency of filler particles to form clusters and even network-like structures significantly determines the mechanical properties of these elastomer materials and enhances especially their energy dissipation under periodic mechanical deformations. In a simplified thermodynamic model, inspired by a segregation model from game theory, we describe fundamental mechanisms of filler structure formation...
April 12, 2017: Soft Matter
https://www.readbyqxmd.com/read/28397055/study-on-multi-density-contrast-agent-fillers-of-duct-casting-based-on-ct-three-dimensional-reconstruction
#4
Hai-Long Huang, Jin-Jun Chen, Yu Wang, Xiao-Yu Chen, Da-Cong Gong
The three-dimensional visualization model of human body duct is based on virtual anatomical structure reconstruction with duct angiography, which realizes virtual model transferred from two-dimensional, planar and static images into three-dimensional, stereoscopic and dynamic ones repectively. In recent years, the multi-duct segmentation and division of the same specimen (or organ) is the focus of attention shared by surgeons and clinical anatomists. On the basis of 4.22 g/cm(3) body bone density, this study has screened out metal oxide contract agent with different density for infusion and modeling, as well as compared and analyzed the effects of three-dimensional image of CT virtual bronchoscopy (CTVB), three-dimensional image of CT maximum intensity projection and three-dimensional model...
April 2017: Journal of Huazhong University of Science and Technology. Medical Sciences
https://www.readbyqxmd.com/read/28389905/fibrin-glue-as-a-stabilization-strategy-in-peripheral-nerve-repair-when-using-porous-nerve-guidance-conduits
#5
Divya Bhatnagar, Jared S Bushman, N Sanjeeva Murthy, Antonio Merolli, Hilton M Kaplan, Joachim Kohn
Porous conduits provide a protected pathway for nerve regeneration, while still allowing exchange of nutrients and wastes. However, pore sizes >30 µm may permit fibrous tissue infiltration into the conduit, which may impede axonal regeneration. Coating the conduit with Fibrin Glue (FG) is one option for controlling the conduit's porosity. FG is extensively used in clinical peripheral nerve repair, as a tissue sealant, filler and drug-delivery matrix. Here, we compared the performance of FG to an alternative, hyaluronic acid (HA) as a coating for porous conduits, using uncoated porous conduits and reverse autografts as control groups...
May 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/28388080/solid-state-lithium-sulfur-batteries-operated-at-37-%C3%A2-c-with-composites-of-nanostructured-li7la3zr2o12-carbon-foam-and-polymer
#6
Xinyong Tao, Yayuan Liu, Wei Liu, Guangmin Zhou, Jie Zhao, Dingchang Lin, Chenxi Zu, Ouwei Sheng, Wenkui Zhang, Hyun-Wook Lee, Yi Cui
An all solid-state lithium-ion battery with high energy density and high safety is a promising solution for a next-generation energy storage system. High interface resistance of the electrodes and poor ion conductivity of solid-state electrolytes are two main challenges for solid-state batteries, which require operation at elevated temperatures of 60-90 °C. Herein, we report the facile synthesis of Al(3+)/Nb(5+) codoped cubic Li7La3Zr2O12 (LLZO) nanoparticles and LLZO nanoparticle-decorated porous carbon foam (LLZO@C) by the one-step Pechini sol-gel method...
April 12, 2017: Nano Letters
https://www.readbyqxmd.com/read/28383064/potential-application-of-an-aspergillus-strain-in-a-pilot-biofilter-for-benzene-biodegradation
#7
Da Sun, Kun Zhang, Chuanren Duan, Wei Wu, Daiyong Deng, Donghong Yu, M Babar Shahzad, Dake Xu, Ju Tang, Li Luo, Jia Chen, Jinxuan Wang, Yidan Chen, Xiang Xie, Guixue Wang
A biofilter with fungus was developed for efficient degradation of benzene, which can overcome the potential risk of leakage commonly found in such services. Results indicated that the optimum parameter values were temperature 40 °C, pH 6, and 500 mg L(-1) of the initial benzene concentration. Besides, the empty bed residence time and inlet load range of biofilter were set to 20 s and 21.23-169.84 g m(-3) h(-1) respectively. Under these conditions, this biofilter can obtain the maximum removal efficiency of more than 90%, the eliminating capacity could be up to 151...
April 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28376362/incorporation-of-plla-micro-fillers-for-mechanical-reinforcement-of-calcium-phosphate-cement
#8
Antonio G B Castro, Alessandro Polini, Zohal Azami, Sander C G Leeuwenburgh, John A Jansen, Fang Yang, Jeroen J J P van den Beucken
Calcium phosphate cements (CPCs) are biocompatible, resorbable, injectable and osteoconductive. Those properties render such materials suitable for applications where bone repair and regeneration is required However, their brittle nature limits their application only to non-load-bearing applications. The incorporation of long polymeric fibers can improve the mechanical properties of CPCs, but aggregation is a major problem. Instead, short polymeric fillers can be easily dispersed in the cement matrix, but their reinforcing effect has not been studied yet...
March 28, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28375971/corrective-hyaluronic-acid-fillers-and-combination-cosmetic-treatments-for-facial-cutaneous-defects-due-to-autoimmune-connective-tissue-diseases-a-retrospective-review
#9
Marisa G Ponzo, Alastair Carruthers, Shannon Humphrey
No abstract text is available yet for this article.
April 3, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28368010/synthesis-of-zn-ii-doped-magnetite-leaf-like-nanorings-for-efficient-electromagnetic-wave-absorption
#10
Shuang Yang, Jian-Tang Jiang, Cheng-Yan Xu, Yang Wang, Yan-Yan Xu, Lei Cao, Liang Zhen
We report the thermal annealing-induced formation of ring-like structure of Zn(II)-doped magnetite from iron alkoxide leaf-like nanoplate precusor. The phase, structure and morphology of magnetite nanorings were comprehensively characterized by powder X-ray diffraction, X-ray photoelectron spectroscopy, atomic force microscope, scanning electron microscope, and transmission electron microscope. The obtained Zn(II)-doped magnetite nanorings are of 13-20 nm in edge width, 70-110 nm in short axis length and 100-150 nm in long axis length...
April 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28333175/left-right-pain-asymmetry-with-injectable-cosmetic-treatments-for-the-face
#11
Jacobus Johannes Fouché, Jani Adriaan Jochem Van Loghem, Job Thuis, Linda Marije De Heer, Martijn G H van Oijen
Background: Pain is processed and experienced differently on the left (L) and right (R) sides of the body; however, L/R pain asymmetry with cosmetic treatments of the face has not been evaluated. Objectives: The authors compared patient ratings of L/R facial pain during and immediately after injectable cosmetic treatments. Methods: In this cross-sectional multicenter pragmatic study, pain levels were evaluated for 302 patients who underwent facial treatments with botulinum toxin (BTX) and/or impermanent soft-tissue filler (STF)...
January 27, 2017: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/28325761/the-aryl-hydrocarbon-receptor-governs-epithelial-cell-invasion-during-oropharyngeal-candidiasis
#12
Norma V Solis, Marc Swidergall, Vincent M Bruno, Sarah L Gaffen, Scott G Filler
Oropharyngeal candidiasis (OPC), caused predominantly by Candida albicans, is a prevalent infection in patients with advanced AIDS, defects in Th17 immunity, and head and neck cancer. A characteristic feature of OPC is fungal invasion of the oral epithelial cells. One mechanism by which C. albicans hyphae can invade oral epithelial cells is by expressing the Als3 and Ssa1 invasins that interact with the epidermal growth factor receptor (EGFR) on epithelial cells and stimulate endocytosis of the organism. However, the signaling pathways that function downstream of EGFR and mediate C...
March 21, 2017: MBio
https://www.readbyqxmd.com/read/28318960/lab-scale-pyrolysis-of-the-automotive-shredder-residue-light-fraction-and-characterization-of-tar-and-solid-products
#13
Manuela Anzano, Elena Collina, Elsa Piccinelli, Marina Lasagni
The general aim of this study is the recovery of Automotive Shredder Residue (ASR). The ASR light fraction, or car fluff, that was collected at an Italian shredding plant was pyrolysed at various temperatures (500-800°C) in a lab-scale reactor. The condensable gases (tar) and solid residue yields increased with decreasing temperature, and these products were characterized to suggest a potential use to reclaim them. The higher heating value (HHV) of tar was 34-37MJ/kg, which is comparable with those of fossil fuels...
March 16, 2017: Waste Management
https://www.readbyqxmd.com/read/28290658/nanostructured-carbon-nitride-polymer-reinforced-electrolyte-to-enable-dendrite-suppressed-lithium-metal-batteries
#14
Jiulin Hu, Jing Tian, Chilin Li
Lithium metal batteries (LMBs) containing S, O2, and fluoride cathodes are attracting increasing attention owing to their much higher energy density than that of Li-ion batteries. However, current limitation for the progress of LMBs mainly comes from the uncontrolled formation and growth of Li dendrites at the anode side. In order to suppress dendrite growth, exploring novel nanostructured electrolyte of high modulus without degradation of Li-electrolyte interface appears to be a potential solution. Here we propose a lightweight polymer-reinforced electrolyte based on graphitic carbon nitride (g-C3N4) mesoporous microspheres as electrolyte filler [bis(trifluoromethanesulfonimide) lithium salt/di(ethylene glycol) dimethyl ether mixed with g-C3N4, denoted as LiTFSI-DGM-C3N4] for the first time...
March 24, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28278109/identification-and-production-of-bioflocculants-by-enterobacter-sp-and-bacillus-sp-and-their-characterization-studies
#15
L Muthulakshmi, H Nellaiah, T Kathiresan, N Rajini, Fenila Christopher
In this work, two bioflocculants, namely, EB-EPS and B1-EPS were derived from Enterobacter sp. and Bacillus sp., respectively and analyzed with regard to their production and characterization. About 0.9 g and 0.16 g of purified EB and B1 were obtained from I L of fermentation broth. Chemical analysis showed the contents of purified EB and B1 mainly as 88.7% and 92.8% (w/w) of carbohydrate, and 11.3% and 21.8% (w/w) protein, respectively. Fourier-transform infrared (FTIR) spectrometry analysis revealed the presence of hydroxyl, amide and carboxyl groups in the identified bioflocculant...
February 16, 2017: Preparative Biochemistry & Biotechnology
https://www.readbyqxmd.com/read/28267314/isolation-of-aramid-nanofibers-for-high-strength-and-toughness-polymer-nanocomposites
#16
Jiajun Lin, Sun Hwi Bang, Mohammad H Malakooti, Henry A Sodano
The development of nanoscale reinforcements that can be used to improve the mechanical properties of a polymer remains a challenge due to the long-standing difficulties with exfoliation and dispersion of existing materials. The dissimilar chemical nature of common nanofillers (e.g., carbon nanotubes, graphene) and polymeric matrix materials is the main reason for imperfect filler dispersion and, consequently, low mechanical performance of their composites relative to theoretical predictions. Here, aramid nanofibers that are intrinsically dispersible in many polymers are prepared from commercial aramid fibers (Kevlar) and isolated through a simple, scalable, and low-cost controlled dissolution method...
March 29, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28244724/the-role-of-field-electron-emission-in-polypropylene-aluminum-nanodielectrics-under-high-electric-fields
#17
Guoqiang Zhang, Yue Li, Saide Tang, Rhett D Thompson, Lei Zhu
Polymer/metallic particle nanocomposites or nanodielectrics can exhibit colossal dielectric constants with a relatively low dissipation factor under low electric fields and thus seem to be promising for high-energy density dielectric capacitors. To study this possibility, this work focused on the dielectric performance and loss mechanisms in polypropylene (PP)/aluminum nanoparticle (nAl NP) composites under high electric fields. Phosphonic acid-terminated poly(ethylene-co-1-butene) was grafted to the Al2O3 surface layer on the nAl NPs in order to achieve reasonable dispersion in the PP matrix...
March 22, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28212979/degradation-of-optical-and-surface-properties-of-resin-based-composites-with-distinct-nanoparticle-sizes-but-equivalent-surface-area
#18
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 25, 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/28205372/zein-based-composites-in-biomedical-applications
#19
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
#20
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 2017: PLoS Pathogens
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