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https://www.readbyqxmd.com/read/28335372/graphene-oxide-bionanocomposite-coatings-with-high-oxygen-barrier-properties
#1
Ilke Uysal Unalan, Derya Boyacı, Masoud Ghaani, Silvia Trabattoni, Stefano Farris
In this work, we present the development of bionanocomposite coatings on poly(ethylene terephthalate) (PET) with outstanding oxygen barrier properties. Pullulan and graphene oxide (GO) were used as main polymer phase and nanobuilding block (NBB), respectively. The oxygen barrier performance was investigated at different filler volume fractions (ϕ) and as a function of different relative humidity (RH) values. Noticeably, the impermeable nature of GO was reflected under dry conditions, in which an oxygen transmission rate (OTR, mL·m(-2)·24 h(-1)) value below the detection limit of the instrument (0...
December 21, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28335310/effect-of-continuous-multi-walled-carbon-nanotubes-on-thermal-and-mechanical-properties-of-flexible-composite-film
#2
Ji Eun Cha, Seong Yun Kim, Seung Hee Lee
To investigate the effect of continuous multi-walled carbon nanotubes (MWCNTs) on the thermal and mechanical properties of composites, we propose a fabrication method for a buckypaper-filled flexible composite film prepared by a two-step process involving buckypaper fabrication using vacuum filtration of MWCNTs, and composite film fabrication using the dipping method. The thermal conductivity and tensile strength of the composite film filled with the buckypaper exhibited improved results, respectively 76% and 275% greater than those of the individual MWCNT-filled composite film...
October 12, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28335270/review-of-recent-developments-on-using-an-off-lattice-monte-carlo-approach-to-predict-the-effective-thermal-conductivity-of-composite-systems-with-complex-structures
#3
REVIEW
Feng Gong, Hai M Duong, Dimitrios V Papavassiliou
Here, we present a review of recent developments for an off-lattice Monte Carlo approach used to investigate the thermal transport properties of multiphase composites with complex structure. The thermal energy was quantified by a large number of randomly moving thermal walkers. Different modes of heat conduction were modeled in appropriate ways. The diffusive heat conduction in the polymer matrix was modeled with random Brownian motion of thermal walkers within the polymer, and the ballistic heat transfer within the carbon nanotubes (CNTs) was modeled by assigning infinite speed of thermal walkers in the CNTs...
July 30, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28335044/semi-automated-de-identification-of-german-content-sensitive-reports-for-big-data-analytics
#4
Hannes Seuss, Peter Dankerl, Matthias Ihle, Andrea Grandjean, Rebecca Hammon, Nicola Kaestle, Peter A Fasching, Christian Maier, Jan Christoph, Martin Sedlmayr, Alexander Cavallaro, Matthias Hammon
Purpose Projects involving collaborations between different institutions require data security via selective de-identification of words or phrases. A semi-automated de-identification tool was developed and evaluated on different types of medical reports natively and after adapting the algorithm to the text structure. Materials and Methods A semi-automated de-identification tool was developed and evaluated for its sensitivity and specificity in detecting sensitive content in written reports. Data from 4671 pathology reports (4105 + 566 in two different formats), 2804 medical reports, 1008 operation reports, and 6223 radiology reports of 1167 patients suffering from breast cancer were de-identified...
March 23, 2017: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
https://www.readbyqxmd.com/read/28333431/ultrahigh-self-sensing-performance-of-geopolymer-nanocomposites-via-unique-interface-engineering
#5
Shuguang Bi, Ming Liu, Jingjing Shen, Xiao Matthew Hu, Liying Zhang
Monitoring and assessment of the health of a civil structural material are the critical requirements to ensure its safety and durability. In this work, a coating strategy on carbon nanotubes (CNTs) was employed for the dispersion of CNTs in geopolymer matrix. The geopolymer nanocomposites prepared exhibited ultrahigh self-sensing performance based on the unique behaviors of SiO2 coating on CNTs in the geopolymer matrix. The SiO2 layer on CNTs was partially or fully removed during the fabrication process to restore the conductive nature of CNTs, facilitating the dispersion of CNTs and forming well-connected 3D electrical conductive networks...
March 23, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28333326/new-high-dose-pulsed-hyaluronidase-protocol-for-hyaluronic-acid-filler-vascular-adverse-events
#6
Claudio DeLorenzi
The purpose of this article is to update the changes to the author's protocols used to manage acute filler related vascular events from those previously published in this journal. For lack of a better term, this new protocol has been called the High Dose Pulsed Hyaluronidase (HDPH) protocol for vascular embolic events with hyaluronic acid (HA) fillers. The initial protocol used involved many different modalities of treatment. The current protocol is exceedingly simple and involves solely the use of hyaluronidase in repeated high doses...
March 17, 2017: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/28333176/efficacy-of-retrobulbar-hyaluronidase-injection-for-vision-loss-resulting-from-hyaluronic-acid-filler-embolization
#7
Guo-Zhang Zhu, Zhong-Sheng Sun, Wen-Xiong Liao, Bing Cai, Chun-Lin Chen, Hui-Hui Zheng, Li Zeng, Sheng-Kang Luo
Background: Vision loss is a rare but serious complication of facial hyaluronic acid (HA) filler injection, for which there is no proven rescue therapy. Retrobulbar hyaluronidase injection is advocated by many plastic surgeons as an emergency treatment, but has not been carefully assessed for its efficacy. Objectives: To evaluate the efficacy of retrobulbar hyaluronidase injection as a rescue treatment for vision loss caused by HA filler embolization. Methods: Patients with vision loss caused by HA filler embolization were treated with retrobulbar hyaluronidase injection...
January 20, 2017: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/28333175/left-right-pain-asymmetry-with-injectable-cosmetic-treatments-for-the-face
#8
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/28332636/significantly-enhanced-energy-storage-density-by-modulating-the-aspect-ratio-of-batio3-nanofibers
#9
Dou Zhang, Xuefan Zhou, James Roscow, Kechao Zhou, Lu Wang, Hang Luo, Chris R Bowen
There is a growing need for high energy density capacitors in modern electric power supplies. The creation of nanocomposite systems based on one-dimensional nanofibers has shown great potential in achieving a high energy density since they can optimize the energy density by exploiting both the high permittivity of ceramic fillers and the high breakdown strength of the polymer matrix. In this paper, BaTiO3 nanofibers (NFs) with different aspect ratio were synthesized by a two-step hydrothermal method and the permittivity and energy storage of the P(VDF-HFP) nanocomposites were investigated...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28332593/injections-through-skin-colonized-with-staphylococcus-aureus-biofilm-introduce-contamination-despite-standard-antimicrobial-preparation-procedures
#10
Yi Wang, Valery Leng, Viraj Patel, K Scott Phillips
While surgical site preparation has been extensively studied, there is little information about resistance of skin microbiota in the biofilm form to antimicrobial decontamination, and there are no quantitative models to study how biofilm might be transferred into sterile tissue/implant materials during injections for joint spine and tendon, aspiration biopsies and dermal fillers (DF). In this work, we develop two in vitro models to simulate the process of skin preparation and DF injection using pig skin and SimSkin (silicone) materials, respectively...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28330515/not-committing-has-its-advantages-facilitating-children-s-comprehension-of-object-filler-gap-dependencies-is-one-of-them
#11
Anamaria Bentea, Stephanie Durrleman
Two studies assess French-speaking children's comprehension of object filler-gap dependencies, with the goal of investigating whether the degree of specificity/set-restriction of the fronted object or the intervening subject modulates comprehension. We tease apart the predictions of various accounts attributing children's difficulties to (i) similarities between the object and the intervening subject (Gordon et al., 2001, 2004), particularly when both constituents share a structural +NP feature (Friedmann et al...
March 23, 2017: Journal of Child Language
https://www.readbyqxmd.com/read/28329542/silicone-granulomas-with-ulcers
#12
Lisa R Rothman, Randie H Kim, Shane A Meehan, Alisa Femia
We present a 42-year-old transgender womanwith woody induration over her buttocks andlower extremities as well as persistent ulcers of thebuttocks. The lesions developed ten years prior to herpresentation and approximately five years after shereceived illegal silicone injections to her buttocks.Histopathologic examination was consistent witha silicone granuloma. Silicone granuloma is a notan uncommon side effect of silicone injections andmore often occurs when the filler is administeredby non-physician practitioners, as is the case in thispatient...
December 15, 2016: Dermatology Online Journal
https://www.readbyqxmd.com/read/28329506/n%C3%A3-dulos-subcut%C3%A3-neos-faciales-de-3-meses-de-evoluci%C3%A3-n
#13
Antonio Martinez-Lopez, Israel Pérez-Lopez, Daniel Sánchez-Cano, Ricardo Ruiz-Villaverde
Siliconomas are subcutaneous nodules that usuallyappear as a consequence of the migration of freesilicon implanted in other locations. They are morefrequent in women with abnormal breast implants,such as poly implant prostheses (PIP), but they may alsoappear after illegal injection of free silicone. We reporta 57-year-old woman who attended our Dermatologyclinic complaining of relapsing facial panniculitis ofunknown origin. After a thorough work-up, thesenodules were determined to be the consequence ofdermal filler made with fluid silicone, which had beeninjected 20 years prior...
February 15, 2017: Dermatology Online Journal
https://www.readbyqxmd.com/read/28328707/the-sterility-of-partially-used-hyaluronic-acid-fillers-after-long-storage
#14
Mohammed Al-Haddab, Amr Abduljabbar, Ali Al-Somaily
BACKGROUND: Hyaluronic acid (HA) gel fillers represent most soft tissue augmentation procedures currently used, because they have lower rates of complications compared with other materials. Many patients do not consume an entire syringe of filler but may require a retouch or intermittent augmentation after some time. The remaining material is commonly stored in a specific environment for reuse by the same patient. OBJECTIVE: There are an insufficient number of recommendations concerning the safety of storing and reusing dermal fillers in the literature because of the paucity of studies...
March 21, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28328289/prospective-3d-analysis-of-facial-soft-tissue-augmentation-with-calcium-hydroxylapatite
#15
Filip Simunovic, Stefan Schlager, Michaela Montanari, Niklas Iblher
BACKGROUND: Facial rejuvenation is an expanding field with an increasing number of treatment modalities. Several non-autologous filler materials are available for soft tissue augmentation. Calcium hydroxylapatite (CaOH) is aimed at increasing collagen neosynthesis and thereby producing long term augmentation effects. Despite a multitude of observational reports, the field is suffering from lack of quantitative morphometic evaluation methods. OBJECTIVE: The objective of this proof-of-principle study was to investigate whether the effects of facial tissue augmentation with CaOH (Radiesse™) can be quantified and followed up using 3D surface scanning...
March 22, 2017: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
https://www.readbyqxmd.com/read/28326750/measuring-hope-standardization-of-the-czech-version-of-the-adult-dispositional-hope-scale-in-healthy-adults
#16
(no author information available yet)
OBJECTIVES: Hope is an important factor that influences mental state of individuals and efficacy of systematic and supportive psychotherapy. The goal of the study was to translate the Adult Dispositional Hope Scale (ADHS) to Czech, evaluate its psychometric properties and create norms to interpret the scale scores. METHODS: The scale consists of twelve items. Four items assess the ability of pathway thinking, four items measure agency, and the remaining four items are fillers that are not interpreted...
January 22, 2017: Neuro Endocrinology Letters
https://www.readbyqxmd.com/read/28325761/the-aryl-hydrocarbon-receptor-governs-epithelial-cell-invasion-during-oropharyngeal-candidiasis
#17
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/28325309/pectin-based-composite-film-effect-of-corn-husk-fiber-concentration-on-their-properties
#18
Dana C Bernhardt, Carolina D Pérez, Eliana N Fissore, Maria D De'Nobili, Ana M Rojas
Considering the polysaccharide composition and 32% of crystallinity of the water insoluble fiber extracted from corn husk (CHF) agricultural residue, its filler performance as water vapor permeability (WVP) and mechanical modifier in edible films based on commercial low methoxyl pectin (LMP) was evaluated (0, 1, 3, 5, 8% concentrations). The 53-μm-CHF carried phenolics and carotenes, and composites showed antioxidant capacity. Homogeneous films with a continuous LMP matrix were obtained. The 5%-CHF composite showed the highest surface contact angle (44°) and tensile strength, without change in elongation, while WVP was decreased in the 3-8% CHF-LMP-films...
May 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28324170/microscopic-and-ultrastructural-evidences-in-human-skin-following-calcium-hydroxylapatite-filler-treatment
#19
Nicola Zerbinati, Edoardo D'Este, Pier Camillo Parodi, Alberto Calligaro
This study uses light and electron microscopes to gain a better knowledge of the interactions of calcium hydroxylapatite filler with the connective tissue of the skin and the modifications of the human deep dermis, after 2 months of treatment. Some morphological evidences of this observational study of filler treated tissue support-specific mechanism involved in the structural modifications of both filler microspherules and cells of the connective tissue. They demonstrate the absence of any immunological reaction and show that the used filler is modified very slowly over time by the action of cells of the connective tissue closely related to the filler without any activity of phagocytosis...
March 21, 2017: Archives of Dermatological Research
https://www.readbyqxmd.com/read/28323708/fenestrated-screws-augmented-with-pmma-increase-the-pullout-strength-of-sacral-pedicle-screws
#20
Matthew Colman, Jonathan Pond, Kent Bachus, Brandon D Lawrence, William R Spiker, Darrel S Brodke
STUDY DESIGN: Biomechanics. OBJECTIVE: The objective of this study was to compare the fixation in osteoporotic specimens of a bicortical sacral pedicle screw to the following constructs: a unicortical solid screw augmented with polymethylmethacrylate (PMMA) (TRACT), a unicortical fenestrated screw augmented with PMMA (FEN), and a bicortical screw/sacral alar screw combination (PED/ALA). SUMMARY OF BACKGROUND DATA: Rigid posterior sacral fixation of osteoporotic spines is problematic due to poor bone quality...
April 2017: Clinical Spine Surgery
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