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https://www.readbyqxmd.com/read/28803411/electro-chemical-deposition-of-nano-hydroxyapatite-zinc-coating-on-titanium-metal-substrate
#1
N A El-Wassefy, F M Reicha, N S Aref
BACKGROUND: Titanium is an inert metal that does not induce osteogenesis and has no antibacterial properties; it is proposed that hydroxyapatite coating can enhance its bioactivity, while zinc can contribute to antibacterial properties and improve osseointegration. AIMS: A nano-sized hydroxyapatite-zinc coating was deposited on commercially pure titanium using an electro-chemical process, in order to increase its surface roughness and enhance adhesion properties...
August 13, 2017: International Journal of Implant Dentistry
https://www.readbyqxmd.com/read/28773006/a-novel-electro-thermal-laminated-ceramic-with-carbon-based-layer
#2
Yi Ji, Bin Huang, Pinggen Rao
A novel electro-thermal laminated ceramic composed of ceramic tile, carbon-based layer, dielectric layer, and foaming ceramic layer was designed and prepared by tape casting. The surface temperature achieved at an applied voltage of 10 V by the laminated ceramics was 40.3 °C when the thickness of carbon-based suspension was 1.0 mm and the adhesive strength between ceramic tile and carbon-based layer was 1.02 ± 0.06 MPa. In addition, the thermal aging results at 100 °C up to 192 h confirmed the high thermal stability and reliability of the electro-thermal laminated ceramics...
June 12, 2017: Materials
https://www.readbyqxmd.com/read/28768499/simultaneous-primary-invasive-cutaneous-aspergillosis-in-two-preterm-twins-case-report-and-review-of-the-literature
#3
Floriane Gallais, Julie Denis, Olfa Koobar, Laurence Dillenseger, Dominique Astruc, Raoul Herbrecht, Ermanno Candolfi, Valérie Letscher-Bru, Marcela Sabou
BACKGROUND: Primary invasive cutaneous aspergillosis is a rare fungal infection that occurs mostly in immunocompromised patients. Newborns of very low birth weight present a high risk for this type of infection due to an immaturity of the cutaneous barrier and of the immune system. CASE PRESENTATION: We describe here a case of simultaneous invasive cutaneous aspergillosis in two preterm twins. Two male preterm bichorionic biamniotic twins (A & B) were born at a general hospital by spontaneous normal delivery at 24 weeks and 6 days of gestation...
August 2, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28755445/squantification-of-free-fatty-acids-in-human-stratum-corneum-using-tandem-mass-spectrometry-and-surrogate-analyte-approach
#4
Irena Dapic, Renata Kobetic, Lidija Brkljacic, Sanja Kezic, Ivone Jakasa
The free fatty acids (FFAs) are one of the major components of the lipids in the stratum corneum (SC), the uppermost layer of the skin. Relative composition of FFAs has been proposed as a biomarker of the skin barrier status in patients with atopic dermatitis (AD). Here, we developed LC-ESI-MS/MS method for simultaneous quantification of a range of FFAs with long and very-long chain length in the SC collected by an adhesive tape (D-Squame). Method based on derivatization with 2-bromo-1-methylpyridinium iodide (BMP) and 3-carbinol-1-methylpyridinium iodide (CMP) allowed highly sensitive detection and quantification of FFAs using multiple reaction monitoring (MRM)...
July 29, 2017: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/28745436/comparison-of-four-different-fuller-s-earth-formulations-in-skin-decontamination
#5
Annick Roul, Cong-Anh-Khanh Le, Marie-Paule Gustin, Emmanuel Clavaud, Bernard Verrier, Fabrice Pirot, Françoise Falson
Industrial accidents, wars and terrorist threats are potential sources of skin contamination by highly toxic chemical warfare agents and manufacturing compounds. We have compared the time-dependent adsorption capacity and decontamination efficiency of fuller's earth (FE) for four different formulations for the molecular tracer, 4-cyanophenol (4-CP), in vitro and ex vivo using water decontamination as standard. The adsorption capacity of FE was assessed in vitro for 4-CP aqueous solutions whereas decontamination efficiency was investigated ex vivo by tracking porcine skin 4-CP content using attenuated total reflectance Fourier transform infrared spectroscopy...
July 26, 2017: Journal of Applied Toxicology: JAT
https://www.readbyqxmd.com/read/28710659/comparison-of-the-effect-of-skin-preparation-pads-on-transepidermal-water-loss-in-ex-vivo-human-skin
#6
Hanan Osman-Ponchet, Alexandre Gaborit, Magali Kouidhi, Sandrine Anglars, Jeanne Marceau-Suissa, Orla Duffy-Roger, Jean-Michel Linget, Claire E Wilson
INTRODUCTION: Pre-treatment of the skin to remove scales and crusts prior to photodynamic therapy (PDT) is essential to enhance the uptake of topically applied methyl aminolevulinate (MAL) and to improve treatment efficacy. This study compared the effect of two different skin preparation pads on skin integrity in ex vivo human skin. METHODS: Ex vivo human skin samples from three donors were pre-treated in triplicates with PREPSTER™ (PR) skin preparation pad (6, 8, and 10 passages) or Ambu Unilect™ (A-UN) skin preparation pad (6, 8, and 10 passages)...
July 14, 2017: Dermatology and Therapy
https://www.readbyqxmd.com/read/28696363/candle-soot-coating-for-latent-fingermark-enhancement-on-various-surfaces
#7
Qianhui Wei, Yu Zhu, Shouliang Liu, Yongjie Gao, Xiaolong Li, Mi Shi, Xueji Zhang, Meiqin Zhang
We demonstrate a facile method termed candle soot coating (CSC) for fast developing latent fingermarks (LFMs) on various kinds of surfaces (glass, ceramic, metal, paper and adhesive tape). The CSC method can be considered as simple, fast, and low-cost as well as providing high contrast for LFM visualization in potential forensic applications.
July 11, 2017: Sensors
https://www.readbyqxmd.com/read/28693956/mechanistic-insights-of-the-enhancement-effect-of-sorbitan-monooleate-on-olanzapine-transdermal-patch-both-in-release-and-percutaneous-absorption-processes
#8
Ning Li, Peng Quan, XiaoCao Wan, Chao Liu, Xiaochang Liu, Liang Fang
In this paper, based on the optimized formulation of olanzapine (OLN) transdermal patch, the role of sorbitan monooleate (SP) in OLN release and percutaneous absorption processes was probed in vitro and in vivo. Rheological test, DSC, FT-IR and molecular modeling were conducted to elucidate the effect of SP on the release process of OLN from transdermal patch. Additionally, the action of SP on the percutaneous absorption process was probed using tape stripping transdermal experiment, confocal laser scanning microscopy (CLSM), ATR-FTIR and molecular docking...
July 8, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28691240/superdurable-coating-fabricated-from-a-double-sided-tape-with-long-term-zero-bacterial-adhesion
#9
Wei Wang, Yang Lu, Hui Zhu, Zhiqiang Cao
There is no coating technology currently available to prevent the notorious biofilm formation issue. Here, a potential solution to fully address this tough issue is reported by developing a super-antifouling coating. The use of zwitterionic hydrogel (a double-sided tape) and commercial superglue is combined and a durable and ultrarobust antifouling zwitterionic (DURA-Z) coating is created that can be easily and universally applied on common substrates. Commercial superglue mostly for binding hydrophobic materials is used to strongly immobilize the superhydrophilic DURA-Z coating through interpenetration...
July 10, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28661985/a-novel-approach-to-sealing-the-denuded-dermis-of-the-abdominal-wall-with-a-negative-pressure-wound-device-after-a-decompressive-laparotomy
#10
John Davis, Daniel M Caruso, Kevin N Foster, Marc R Matthews
The open abdomen is a well-known technique that is applied in a wide variety of clinical situations, including treatment of abdominal compartment syndrome, damage control laparotomy, and severe intraabdominal sepsis. Disease states such as Stevens-Johnson Syndrome/Toxic Epidermal Necrolysis or extensive deep partial and/or full-thickness torso burns involving the abdomen often result in a complete epidermal and partial dermal loss. When ABThera Open Abdomen Negative Pressure Wound Therapy is attempted in these patients, the exposed subcutaneous tissue rarely allows for an adequate seal between the adhesive barrier and the denuded skin...
June 28, 2017: Journal of Burn Care & Research: Official Publication of the American Burn Association
https://www.readbyqxmd.com/read/28660973/exfoliation-of-two-dimensional-polymer-single-crystals-into-thin-sheets-and-investigations-of-their-surface-structure-by-high-resolution-atomic-force-microscopy
#11
Hannes Beyer, Max J Kory, Gregor Hofer, Andreas Stemmer, A Dieter Schlüter
The acid-assisted wet-chemical and the adhesive-tape induced micromechanical exfoliation of differently sized single crystals of a 2D polymer (approx. 20 μm and 100 μm) is shown to result in thin sheet stacks. Tuning of the thickness is achieved via duration and frequency of the exfoliation, respectively. A color code is established that correlates interference colors of sheet stacks on SiO2(300 nm)/Si as observed under an optical microscope with their thicknesses measured by atomic force microscopy. This facilitates reliable monitoring of the exfoliation and quick identification of sheet stacks of a desired thickness...
July 13, 2017: Nanoscale
https://www.readbyqxmd.com/read/28584362/facial-skin-injury-caused-by-acrylate-based-adhesive-tapes-in-a-post-menopausal-patient-a-preventable-cause
#12
Gaurav Sindwani, Aditi Suri, Ruchi Verma
No abstract text is available yet for this article.
May 2017: Indian Journal of Anaesthesia
https://www.readbyqxmd.com/read/28537617/buoyancy-increase-and-drag-reduction-through-a-simple-superhydrophobic-coating
#13
Gi Byoung Hwang, Adnan Patir, Kristopher Page, Yao Lu, Elaine Allan, Ivan P Parkin
A superhydrophobic paint was fabricated using 1H,1H,2H,2H-perfluorooctyltriethoxysilane (PFOTES), TiO2 nanoparticles and ethanol. The paint has potential for aquatic application of a superhydrophobic coating as it induces increased buoyancy and drag reduction. Buoyance testing showed that the reduction of surface energy by superhydrophobic coating made it feasible that glass, a high density material, was supported by the surface tension of water. In a miniature boat sailing test, it was shown that the low energy surface treatment decreased the adhesion of water molecules to the surface of the boat resulting in a reduction of the drag force...
June 8, 2017: Nanoscale
https://www.readbyqxmd.com/read/28533633/photolithography-free-laser-patterned-hf-acid-resistant-chromium-polyimide-mask-for-rapid-fabrication-of-microfluidic-systems-in-glass
#14
Konstantin O Zamuruyev, Yuriy Zrodnikov, Cristina E Davis
Excellent chemical and physical properties of glass, over a range of operating conditions, make it a preferred material for chemical detection systems in analytical chemistry, biology, and the environmental sciences. However, it is often compromised with SU8, PDMS, or Parylene materials due to the sophisticated mask preparation requirements for wet etching of glass. Here, we report our efforts toward developing a photolithography-free laser-patterned hydrofluoric acid-resistant chromium-polyimide tape mask for rapid prototyping of microfluidic systems in glass...
January 2017: Journal of Micromechanics and Microengineering: Structures, Devices, and Systems
https://www.readbyqxmd.com/read/28527732/descriptive-study-of-the-frequency-of-medical-adhesive-related-skin-injuries-in-a-vascular-clinic
#15
Catherine R Ratliff
A medical adhesive can be defined as a product used to secure a device (ie, tape, dressing, catheter, electrode, and ostomy pouch) to the skin. Skin injury related to medical adhesive usage occurs across all care settings with medical adhesive-related skin injuries (MARSIs) playing a significant role with patient safety. The purpose of this descriptive prospective study was to assess all adult patients with wounds seen in the vascular clinic for MARSI by the CWOCN NP over a 3-month time period. One hundred twenty patients comprising a total of 207 visits were seen by the CWOCN NP over the 3-month time frame...
June 2017: Journal of Vascular Nursing: Official Publication of the Society for Peripheral Vascular Nursing
https://www.readbyqxmd.com/read/28525773/acetone-facilitated-dna-sampling-from-electrical-tapes-improves-dna-recovery-and-enables-latent-fingerprints-development
#16
Ilan Feine, Moshe Shpitzen, Boris Geller, Eran Salmon, Tsach Peleg, Jonathan Roth, Ron Gafny
Electrical tapes (ETs) are a common component of improvised explosive devices (IEDs) used by terrorists or criminal organizations and represent a valuable forensic resource for DNA and latent fingerprints recovery. However, DNA recovery rates are typically low and usually below the minimal amount required for amplification. In addition, most DNA extraction methods are destructive and do not allow further latent fingerprints development. In the present study a cell culture based touch DNA model was used to demonstrate a two-step acetone-water DNA recovery protocol from ETs...
May 8, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28508286/sample-preparation-of-corn-seed-tissue-to-prevent-analyte-relocations-for-mass-spectrometry-imaging
#17
Shin Hye Kim, Jeongkwon Kim, Young Jin Lee, Tae Geol Lee, Sohee Yoon
Corn seed tissue sections were prepared by the tape support method using an adhesive tape, and mass spectrometry imaging (MSI) was performed. The effect of heat generated during sample preparation was investigated by time-of-flight secondary mass spectrometry (TOF-SIMS) imaging of corn seed tissue prepared by the tape support and the thaw-mounted methods. Unlike thaw-mounted sample preparation, the tape support method does not cause imaging distortion because of the absence of heat, which can cause migration of the analytes on the sample...
August 2017: Journal of the American Society for Mass Spectrometry
https://www.readbyqxmd.com/read/28501746/a-label-free-nanostructured-plasmonic-biosensor-based-on-blu-ray-discs-with-integrated-microfluidics-for-sensitive-biodetection
#18
Gerardo A López-Muñoz, M-Carmen Estevez, E Cristina Peláez-Gutierrez, Antoni Homs-Corbera, M Carmen García-Hernandez, J Ignacio Imbaud, Laura M Lechuga
Nanostructure-based plasmonic biosensors have quickly positioned themselves as interesting candidates for the design of portable optical biosensor platforms considering the potential benefits they can offer in integration, miniaturization, multiplexing, and real-time label-free detection. We have developed a simple integrated nanoplasmonic sensor taking advantage of the periodic nanostructured array of commercial Blu-ray discs. Sensors with two gold film thicknesses (50 and 100nm) were fabricated and optically characterized by varying the oblique-angle of the incident light in optical reflectance measurements...
May 10, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28454628/accessible-biometrics-a-frustrated-total-internal-reflection-approach-to-imaging-fingerprints
#19
Nathan D Smith, James S Sharp
Fingerprints are widely used as a means of identifying persons of interest because of the highly individual nature of the spatial distribution and types of features (or minuta) found on the surface of a finger. This individuality has led to their wide application in the comparison of fingerprints found at crime scenes with those taken from known offenders and suspects in custody. However, despite recent advances in machine vision technology and image processing techniques, fingerprint evidence is still widely being collected using outdated practices involving ink and paper - a process that can be both time consuming and expensive...
May 2017: Science & Justice: Journal of the Forensic Science Society
https://www.readbyqxmd.com/read/28452830/first-aid-treatment-for-friction-blisters-walking-into-the-right-direction
#20
Lando Janssen, Neeltje A E Allard, Dominique S M Ten Haaf, Cees P P van Romburgh, Thijs M H Eijsvogels, Maria T E Hopman
OBJECTIVE: Blisters are common foot injuries during and after prolonged walking. However, the best treatment remains unclear. The aim of the study was to compare the effect of 2 different friction blister treatment regimens, wide area fixation dressing versus adhesive tape. DESIGN: A prospective observational cohort study. SETTING: The 2015 Nijmegen Four Days Marches in the Netherlands. PARTICIPANTS: A total of 2907 participants (45 ± 16 years, 52% men) were included and received 4131 blister treatments...
April 27, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
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