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https://www.readbyqxmd.com/read/29218662/laparoscopic-removal-of-retroperitoneal-tumor-with-maneuver-of-hanging-inferior-vena-cava
#1
Sungho Kim, Ho-Seong Han, YoungRok Choi, Yoo-Seok Yoon, Jai Young Cho
BACKGROUND: Laparoscopic resection of retroperitoneal mass is challenging because of its location close to major vessels and a limited range of laparoscopic instruments [1-3]. We report a case of a huge retroperitoneal paraganglioma that was successfully excised laparoscopically using maneuver of hanging IVC METHOD: A 67-year-old female had abdominal mass detected during routine check-up. She had no symptoms associated mass. Hematologic, biochemical investigations, and hormone tests reveal normal results...
December 7, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/29201621/thermal-release-transfer-printing-for-stretchable-conformal-bioelectronics
#2
Zhuocheng Yan, Taisong Pan, Miaomiao Xue, Changyong Chen, Yan Cui, Guang Yao, Long Huang, Feiyi Liao, Wei Jing, Hulin Zhang, Min Gao, Daqing Guo, Yang Xia, Yuan Lin
Soft neural electrode arrays that are mechanically matched between neural tissues and electrodes offer valuable opportunities for the development of disease diagnose and brain computer interface systems. Here, a thermal release transfer printing method for fabrication of stretchable bioelectronics, such as soft neural electrode arrays, is presented. Due to the large, switchable and irreversible change in adhesion strength of thermal release tape, a low-cost, easy-to-operate, and temperature-controlled transfer printing process can be achieved...
November 2017: Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
https://www.readbyqxmd.com/read/29179286/-decolorization-of-skin-and-hair-derived-melanin-by-three-ligninolytic-enzymes
#3
F Miao, T C Lei, M Y Su, W J Yi, S Jiang, S Z Xu
Objective: To compare the decolorization efficiency of lignin peroxidase (LiP), manganese peroxidase (MnP) and laccase on eumelanin and pheomelanin, and to investigate the effect of topical administration of LiP solution on hyperpigmented guinea pigs skin induced by 308 nm excimer light. Methods: Pheomelanin-enriched specimens were prepared from human hair and cutaneous melanoma tissue using alkaline lysis method.Synthetic eumelanin was purchased from a commercial supplier.The same amount (0.02%) of melanin was incubated with the equal enzyme activity (0...
November 21, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29177102/assessment-of-r18-cog1410-and-app96-110-in-excitotoxicity-and-traumatic-brain-injury
#4
Li Shan Chiu, Ryan S Anderton, Jane L Cross, Vince W Clark, Adam B Edwards, Neville W Knuckey, Bruno P Meloni
Cationic arginine-rich and poly-arginine peptides (referred to as CARPs) have potent neuroprotective properties in in vitro excitotoxicity and in vivo models of stroke. Traumatic brain injury (TBI) shares many pathophysiological processes as stroke, including excitotoxicity. Therefore, we evaluated our lead peptide, poly-arginine R18, with the COG1410 and APP96-110 peptides, which have neuroprotective actions following TBI. In an in vitro cortical neuronal glutamic acid excitotoxicity injury model, R18 was highly neuroprotective and reduced neuronal calcium influx, while COG1410 and APP96-110 displayed modest neuroprotection and were less effective at reducing calcium influx...
2017: Translational Neuroscience
https://www.readbyqxmd.com/read/29166258/application-of-a-skin-adhesive-to-maintain-seal-in-negative-pressure-wound-therapy-demonstration-of-a-new-technique
#5
Murad Karadsheh, Josh Nelson, Benjamin Rechner, Richard Wilcox
Optimal wound healing with negative pressure wound therapy (NPWT) relies on a properly sealed vacuum system. Anatomically difficult wounds impair the adhesive dressing, which results in air leaks that disrupt the integrity of the NPWT system and hinder wound healing. OBJECTIVE: The authors demonstrate a new technique using a cyanoacrylate-based tissue adhesive to maintain an airtight, durable seal in NPWT. MATERIALS AND METHODS: A 52-year-old woman with a degloving injury to the right thigh extending into the groin, resulting in massive necrosis, presented to the emergency department...
November 2017: Wounds: a Compendium of Clinical Research and Practice
https://www.readbyqxmd.com/read/29136790/paper-based-amperometric-sensor-for-determination-of-acetylcholinesterase-using-screen-printed-graphene-electrode
#6
Yosita Panraksa, Weena Siangproh, Thitikan Khampieng, Orawon Chailapakul, Amara Apilux
A simple paper-based sensor with electrochemical detection was first developed for rapid, selective, and sensitive determination of acetylcholinesterase (AChE). The screen-printed graphene electrode was used as working electrode providing sensitivity for the sensor. The amperometric detection of AChE is based on the determination of thiocholine (TCh) produced from hydrolysis of acetylthiocholine chloride (ATCh) by AChE. To detect TCh, the ATCh immobilized sheet was stacked onto the detection sheet using double adhesive tape, then samples of AChE were dropped on the back side of an ATCh immobilized sheet with only 1min of incubation time...
February 1, 2018: Talanta
https://www.readbyqxmd.com/read/29115817/low-cost-chemical-responsive-adhesive-sensing-chips
#7
Weirui Tan, Liyuan Zhang, Wei Shen
Chemical-responsive adhesive sensing chip is a new low-cost analytical platform, which uses adhesive tape loaded with indicator reagents to detect or quantify the target analytes by directly sticking the tape to the samples of interest. The chemical-responsive adhesive sensing chips can be used with paper to analyse aqueous samples; they can also be used to detect and quantify solid, particulate and powder analytes. The colorimetric indicators become immediately visible as the contact between the functionalized adhesives and target samples was made...
November 8, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29102833/touch-dna-sampling-with-scenesafe-fast%C3%A2-minitapes
#8
Britta Stoop, Priscille Merciani Defaux, Silvia Utz, Martin Zieger
To achieve optimal results in the forensic analysis of trace DNA, choosing the right collection technique is crucial. Three common approaches are currently well-established for DNA retrieval from items of clothing, notably cutting, swabbing and tape-lifting. The latter two are non-destructive and therefore preferable on items of value. Even though the most recently established technique of DNA retrieval by adhesive tapes is widely used since quite some years now, little information has been published so far on how well it performs compared to other methods...
October 27, 2017: Legal Medicine
https://www.readbyqxmd.com/read/29057998/a-super-stretchable-and-sensitive-strain-sensor-based-on-a-carbon-nanocoil-network-fabricated-by-a-simple-peeling-off-approach
#9
Chenghao Deng, Lujun Pan, Dongmei Zhang, Chengwei Li, Habib Nasir
Despite the tremendous progress in wearable and smart strain sensors, it is still a challenge to develop a highly sensitive, stretchable, and low-cost sensor. Herein, a super stretchable and sensitive strain sensor fabricated by a simple peeling-off approach is reported. The strain sensor is prepared by peeling off a thin as-grown carbon nanocoil (CNC) film from a substrate using a stretchable polydimethylsiloxane (PDMS) film or a flexible adhesive tape. Herein, we took advantage of the spring-like morphology and the original network of the CNCs...
November 2, 2017: Nanoscale
https://www.readbyqxmd.com/read/29031237/novel-methodology-for-determining-the-effect-of-adsorbates-on-human-enamel-acid-dissolution
#10
N Pechlivani, D A Devine, P D Marsh, A Mighell, S J Brookes
OBJECTIVE: The effect of various interventions on enamel demineralisation can be determined by chemically measuring mineral ions dissolved by the attacking acid. Results are usually expressed as mineral loss per surface area of enamel exposed. Acid resistant varnish or adhesive tape are typically used to delineate an area of enamel. However, enamel surface curvature, rugosity and porosity reduce the reliability of simple area measurements made at the macro scale. Our aim was to develop a simple method for investigating the effect of adsorbates on enamel demineralisation that does not rely on knowing the area of enamel exposed...
October 3, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/29021505/skin-permeability-of-tulobuterol-in-two-transdermal-formulations-and-their-followability
#11
Yuichi Takizawa, Takeshi Goto, Shuji Sato, Naoya Ohmori, Kenji Mori, Yayoi Shimada, Kuei Chen, Takamitsu Miyagi, Fumio Fukai
Various generic transdermal formulations of tulobuterol containing rubber and acrylate base polymers are commercially available in Japan. However, none of the formulations have been compared directly with respect to the skin permeability of tulobuterol and to their follow ability. Tulobuterol Tape Sawai of rubber base and Tulobuterol Tape NP of acrylate base were used to conduct the in vitro 24-hour skin permeability test of tulobuterol at receiver solution temperatures of 32°C, 37°C, and 40°C. Furthermore, the followability of these tapes were examined by measuring the depth of the pores that were formed in their adhesive layer...
October 11, 2017: Drug Discoveries & Therapeutics
https://www.readbyqxmd.com/read/28994817/a-simple-robust-and-high-throughput-single-molecule-flow-stretching-assay-implementation-for-studying-transport-of-molecules-along-dna
#12
Kan Xiong, Paul C Blainey
We describe a simple, robust and high throughput single molecule flow-stretching assay for studying 1D diffusion of molecules along DNA. In this assay, glass coverslips are functionalized in a one-step reaction with silane-PEG-biotin. Flow cells are constructed by sandwiching an adhesive tape with pre-cut channels between a functionalized coverslip and a PDMS slab containing inlet and outlet holes. Multiple channels are integrated into one flow cell and the flow of reagents into each channel can be fully automated, which significantly increases the assay throughput and reduces hands-on time per assay...
October 1, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28989680/a-general-and-facile-chemical-avenue-for-the-controlled-and-extreme-regulation-of-water-wettability-in-air-and-oil-wettability-under-water
#13
Dibyangana Parbat, Sana Gaffar, Adil Majeed Rather, Aditi Gupta, Uttam Manna
The controlled modulation of both oil (under water) and water (in air) wettability is an emerging approach to develop several functional materials for various prospective applications including oil/water separation, anti-corrosive coatings, underwater robotics, protein crystallization, drug delivery, open microfluidics, water harvesting etc. Here, we report a 'reactive' and covalently cross-linked coating through a facile and robust Michael addition reaction, which is suitable for the controlled and extreme regulation of both water and oil wettability in air and under water respectively...
September 1, 2017: Chemical Science
https://www.readbyqxmd.com/read/28978332/central-venous-access-device-securement-and-dressing-effectiveness-for-peripherally-inserted-central-catheters-in-adult-acute-hospital-patients-cascade-a-pilot-randomised-controlled-trial
#14
Raymond J Chan, Sarah Northfield, Emily Larsen, Gabor Mihala, Amanda Ullman, Peter Hancock, Nicole Marsh, Nicole Gavin, David Wyld, Anthony Allworth, Emily Russell, Md Abu Choudhury, Julie Flynn, Claire M Rickard
BACKGROUND: Peripherally inserted central catheters (PICCs) are commonly used for delivering intravenous therapy. PICC failure is unacceptably high (up to 40%) due to mechanical, infectious and thrombotic complications. Poor securement potentiates all complication types. This randomised controlled trial (RCT) aimed to examine the feasibility of a large RCT of four dressing and securement methods to prevent PICC failure. METHODS: This single-centre pilot RCT included 124 admitted medical/surgical/cancer patients aged ≥ 16 years with a PICC...
October 4, 2017: Trials
https://www.readbyqxmd.com/read/28964774/delayed-2-h-post-stroke-administration-of-r18-and-na-1-tat-nr2b9c-peptides-after-permanent-and-or-transient-middle-cerebral-artery-occlusion-in-the-rat
#15
Diego Milani, Jane L Cross, Ryan S Anderton, David J Blacker, Neville W Knuckey, Bruno P Meloni
Following positive results with the poly-arginine peptide R18 when administered intravenously 30 or 60min after permanent and/or transient middle cerebral artery occlusion (MCAO; 90min) in the rat, we examined the effectiveness of the peptide when administered 2h after MCAO. R18 was administered intravenously (1000nmol/kg via jugular vein) after permanent MCAO or a transient 3-h MCAO or when administered intra-arterially (100nmol/kg via internal carotid artery) immediately after reperfusion following a transient 2-h MCAO...
September 28, 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/28956148/rna-dna-co-analysis-from-bloodstains-on-aged-polyvinyl-alcohol-gloves-prepared-for-securing-evidence-from-the-hands-of-victims-of-fatal-gunshot-injuries
#16
Melanie Grabmüller, Cornelius Courts, Burkhard Madea, Tim Eichhorst, Christian Schyma
In contrast to cumulative techniques (e.g., tape-lift) for qualitative gunshot residues (GSR) analysis, topographic methods are commonly applied to preserve the integrity of evidence from a shooter's or victim's hand in cases of gun-related crimes. Topographic sampling techniques employing adhesive foils, latex, or the polyvinyl alcohol (PVAL) method enable unambiguous sampling of biological and non-biological trace material while preserving its spatial distribution and relation to each other. The PVAL method in particular allows for a topographically veridic and quantitative conservation of traces of GSR and biological stains that are embedded in the PVAL glove, because it completely removes these traces from the hand...
September 27, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28937702/revisiting-the-generalized-scaling-law-for-adhesion-role-of-compliance-and-extension-to-progressive-failure
#17
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...
October 25, 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
#18
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
#19
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...
October 4, 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
#20
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
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