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https://www.readbyqxmd.com/read/28937702/revisiting-the-generalized-scaling-law-for-adhesion-role-of-compliance-and-extension-to-progressive-failure
#1
Ahmad R Mojdehi, Douglas P Holmes, David A Dillard
A generalized scaling law, based on the classical fracture mechanics approach, is developed to predict the bond strength of adhesive systems. The proposed scaling relationship depends on the rate of change of debond area with compliance, rather than the ratio of area to compliance. This distinction can have a profound impact on the expected bond strength of systems, particularly when the failure mechanism changes or the compliance of the load train increases. Based on the classical fracture mechanics approach for rate-independent materials, the load train compliance should not affect the force capacity of the adhesive system, whereas when the area to compliance ratio is used as the scaling parameter, it directly influences the bond strength, making it necessary to distinguish compliance contributions...
September 22, 2017: Soft Matter
https://www.readbyqxmd.com/read/28936962/-evaluation-of-the-effect-of-a-new-fixation-tape-for-tracheal-catheter-in-intensive-care-patients
#2
Limin Chen, Ruihong Liu, Biyu Shen, Lingling Wang, Zhiming Cui, Guanhua Xu
OBJECTIVE: To evaluate the effect of a new type of fixation tape for tracheal catheter in intensive care patients. METHODS: A purposive sampling study was conducted. Ninety patients experienced oral tracheal intubation for mechanical ventilation, and admitted to respiratory intensive care unit (ICU) of the Second Affiliated Hospital of Nantong University from November 2015 to February 2017 were enrolled. All the patients were randomly (random number) divided into the control group and the observation group with 45 patients in each group...
September 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28929736/substrate-versatile-approach-to-robust-antireflective-and-superhydrophobic-coatings-with-excellent-self-cleaning-property-in-varied-environments
#3
Tingting Ren, Junhui He
Robust antireflective and superhydrophobic coatings are highly desired in wide applications, such as optical devices, solar cell panels, architectural and automotive glasses, lab-on chip systems, and windows for electronic devices. Meanwhile, simple, low-cost, and substrate-versatile fabrication is also essential toward real applications of such coatings. Herein, we developed a substrate-versatile strategy to fabricate robust antireflective and superhydrophobic coatings with excellent self-cleaning property in varied environments, including air and oil and after oil contamination...
September 20, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28906449/facile-preparation-of-a-robust-and-durable-superhydrophobic-coating-using-biodegradable-lignin-coated-cellulose-nanocrystal-particles
#4
Jingda Huang, Siqun Wang, Shaoyi Lyu
It is a challenge for a superhydrophobic coating to overcome the poor robustness and the rough surface structure that is usually built using inorganic particles that are difficult to degrade. In this study, a robust superhydrophobic coating is facilely prepared by using commercial biodegradable lignin-coated cellulose nanocrystal (L-CNC) particles after hydrophobic modification to build rough surface structures, and by choosing two different adhesives (double-sided tape and quick-setting epoxy) to support adhesion between the L-CNC particles and the substrates...
September 14, 2017: Materials
https://www.readbyqxmd.com/read/28906346/time-course-of-changes-in-corticospinal-excitability-after-short-term-forearm-hand-immobilization
#5
Tetsuya Karita, Akihiro Matsuura, Yoshihiro Kondo, Kohta Tomimura, Nao Nakada, Futoshi Mori
The short-term joint immobilization induces a decrease of corticospinal excitability; however, detailed time course of the immobilization-induced central nervous system changes and their extent have not yet been clarified. To evaluate the time course of changes in corticospinal excitability during forearm/hand immobilization for 24 h and investigate the effect on muscle strength, adhesive casting tape was used to immobilize the nondominant forearm/hand. The amplitude of the motor-evoked potential of the flexor pollicis brevis muscle induced by transcranial magnetic stimulation was measured during immobilization and after cast removal...
September 12, 2017: Neuroreport
https://www.readbyqxmd.com/read/28886808/assessing-skin-cancer-using-epidermal-genetic-information-retrieved-by-adhesive-patch-skin-surface-sampling
#6
REVIEW
Nayoung Lee, Alon Scope, Harold Rabinovitz
The detection of melanoma can be challenging. Many patients have clinically equivocal lesions in cosmetically sensitive areas or have multiple suspicious lesions. Epidermal genetic information retrieval is a noninvasive diagnostic method involving the application of adhesive tape onto the skin's surface to recover genomic material from the epidermis. This genomic material can then be used in assays to determine gene expression profiles. Studies have shown the potential of this technology to aid clinicians in differentiating between melanomas and nevi...
October 2017: Dermatologic Clinics
https://www.readbyqxmd.com/read/28884851/-bottom-up-in-situ-proteomic-differentiation-of-human-and-non-human-haemoglobins-for-forensic-purposes-by-maldi-tof-ms-ms
#7
K P Kirkbride, S Kamanna, J Henry, N Voelcker, A Linacre
RATIONALE: The detection and identification of human blood on crime-related items are of particular relevance to many investigations because shed blood can provide evidence of violent contact between individuals. However, for any detection and identification technique, specificity is a critical performance characteristic to assess; that is, whether the technique has the capability to differentiate between human blood (which usually is of relevance to a criminal investigation) and non-human blood (which usually would not be associated with a crime but may be detected incidentally)...
September 8, 2017: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/28821279/genetic-deletion-of-mglu2-metabotropic-glutamate-receptors-improves-the-short-term-outcome-of-cerebral-transient-focal-ischemia
#8
Federica Mastroiacovo, Slavianka Moyanova, Milena Cannella, Anderson Gaglione, Remy Verhaeghe, Giovanna Bozza, Michele Madonna, Marta Motolese, Anna Traficante, Barbara Riozzi, Valeria Bruno, Giuseppe Battaglia, David Lodge, Ferdinando Nicoletti
We have recently shown that pharmacological blockade of mGlu2 metabotropic glutamate receptors protects vulnerable neurons in the 4-vessel occlusion model of transient global ischemia, whereas receptor activation amplifies neuronal death. This raised the possibility that endogenous activation of mGlu2 receptors contributes to the pathophysiology of ischemic neuronal damage. Here, we examined this possibility using two models of transient focal ischemia: (i) the monofilament model of middle cerebral artery occlusion (MCAO) in mice, and (ii) the model based on intracerebral infusion of endothelin-1 (Et-1) in rats...
August 18, 2017: Molecular Brain
https://www.readbyqxmd.com/read/28803411/electro-chemical-deposition-of-nano-hydroxyapatite-zinc-coating-on-titanium-metal-substrate
#9
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
#10
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
#11
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
#12
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
#13
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
#14
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
#15
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
#16
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
#17
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...
September 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
#18
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
#19
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
#20
Gaurav Sindwani, Aditi Suri, Ruchi Verma
No abstract text is available yet for this article.
May 2017: Indian Journal of Anaesthesia
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