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https://www.readbyqxmd.com/read/29786905/quasi-3d-structured-interfaces-by-polymer-brushes
#1
REVIEW
Edmondo M Benetti
The fabrication of polymer brushes via surface-initiated controlled radical polymerizations has progressively developed beyond a simple surface functionalization technique, enabling the design of complex polymer interfaces with a quasi-3D molecular organization. The modulation of polymer brush structure has led to an extremely broad tuning potential for technologically relevant interfacial, physicochemical properties, allowing one to precisely tune swelling, nanomechanical, and nanotribological characteristics of polymer films...
May 22, 2018: Macromolecular Rapid Communications
https://www.readbyqxmd.com/read/29786575/spatial-organization-of-the-excretory-ducts-and-sections-of-microcirculatory-blood-flow-of-the-labial-salivary-glands-in-older-adults
#2
Volodymyr H Hryn, Tamara F Deineha, Аndrij V Piliuhin, Anna V Lavrenko, Dmytro O Lavrenko
OBJECTIVE: Introduction: Salivary glands have a significant impact on the state of the homeostasis of the human body, oral cavity in particular, sensitively responding to pathological processes. The reactivity of the salivary glands in response to pathological processes that are organically linked to morphology and functions of the organ's structures, and particularly the excretory ducts of the glands and their microcirculatory blood flow, is one of the problems which have not been solved to date...
2018: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29786431/ultrasonic-assisted-spin-coating-improved-junction-by-enhanced-permeation-of-coating-material-within-nanostructures
#3
Jong-Won Yun, Farman Ullah, Se-Jeong Jang, Do Hui Kim, Tri Khoa Nguyen, Ki Yeon Ryu, Shinuk Cho, Joon I Jang, Dooyong Lee, Sungkyun Park, Yong Soo Kim
Over the last decades, the spin coating (SC) technique has been widely used to prepare thin films of various materials in liquid phase on arbitrary substrates. The technique simply relies on centrifugal force to spread a coating solution radially outwards over the substrate. This mechanism works fairly well for solutions with low surface tension to form thin films of reasonable junctions on smooth substrates. Here, we present a modified SC technique, namely ultrasonic-assisted spin-coating (UASC), to form thin films of coating solution having high surface tension on rough substrates with excellent junctions...
May 22, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29785990/continuous-intraoperative-optical-coherence-tomography-guided-shield-ulcer-debridement-with-tuck-in-multilayered-amniotic-membrane-transplantation
#4
Namrata Sharma, Deepali Singhal, Prafulla Kumar Maharana, Rahul Jain, Pranita Sahay, Jeewan S Titiyal
Purpose: The aim of this study is to describe a modified surgical technique of continuous intraoperative optical coherence tomography (iOCT)-guided shield ulcer debridement with tuck-in multilayered Amniotic membrane transplantation (ML AMT) in vernal keratoconjunctivitis (VKC) with shield ulcer with plaque. Methods: Seven eyes of seven patients presenting with VKC with shield ulcer with plaque were enrolled in this prospective case series and planned for shield ulcer debridement with ML AMT...
June 2018: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29785611/correction-to-top-down-bottom-up-and-sideways-the-multilayered-complexities-of-multi-level-actors-shaping-forest-governance-and-redd-arrangements-in-madre-de-dios-peru
#5
Dawn Rodriguez-Ward, Anne M Larson, Harold Gordillo Ruesta
The article Top-down, bottom-up and sideways: the multilayered complexities of multi-level actors shaping forest governance and REDD+ arrangements in Madre de Dios, Peru, written by Dawn Rodriguez-Ward, Anne M. Larson, Harold Gordillo Ruesta, was originally published electronically on the publisher's internet portal (currently SpringerLink) on 3 January 2018 without open access. With the author(s)' decision to opt for Open Choice the copyright of the article changed on (25 April 2018) to
May 21, 2018: Environmental Management
https://www.readbyqxmd.com/read/29783167/removing-escherichia-coli-from-water-using-zinc-oxide-coated-zeolite
#6
Lingling Wang, Wenlin Wu, Xiaolan Xie, Hongbin Chen, Jianming Lin, Dionysios D Dionysiou
The removal of Escherichia coli (E. coli) from water by zinc oxide-coated zeolite (ZOCZ) and ZOCZ's antibacterial properties were examined in laboratory experiments using plate counting method and tests of cell apoptosis. Batch experiments showed that ZOCZ has a maximum removal capacity for E. coli of about 4.34 × 106  CFU g-1  at 25 °C. Element mappings confirm that zinc ions accumulate in the E. coli cells causing cell death. Pseudo-second-order kinetics and Freundlich isotherms were found to best describe the removal of E...
May 11, 2018: Water Research
https://www.readbyqxmd.com/read/29780958/resorbable-and-running-suture-for-stable-fixation-of-amniotic-membrane-multilayers-a-useful-modification-in-deep-or-perforating-sterile-corneal-ulcers
#7
Constantin E Uhlig, Viktoria C Müller
Purpose: To present a modified technique for secure tightening and fixing of multilayer amniotic membranes in deep or perforating corneal ulcers. Observations: The modified procedure for application and fixation of multilayer amniotic membranes is retrospectively described step by step, and the results of three patients treated with this technique were retrospectively analysed and presented.The modification consists basically in fixing the inlays with one mini-overlay that is sutured intracorneally with resorbable and running Vicryl 10...
June 2018: American Journal of Ophthalmology Case Reports
https://www.readbyqxmd.com/read/29779605/games-as-tools-to-address-conservation-conflicts
#8
REVIEW
Steve M Redpath, Aidan Keane, Henrik Andrén, Zachary Baynham-Herd, Nils Bunnefeld, A Bradley Duthie, Jens Frank, Claude A Garcia, Johan Månsson, Lovisa Nilsson, Chris R J Pollard, O Sarobidy Rakotonarivo, Carl F Salk, Henry Travers
Conservation conflicts represent complex multilayered problems that are challenging to study. We explore the utility of theoretical, experimental, and constructivist approaches to games to help to understand and manage these challenges. We show how these approaches can help to develop theory, understand patterns in conflict, and highlight potentially effective management solutions. The choice of approach should be guided by the research question and by whether the focus is on testing hypotheses, predicting behaviour, or engaging stakeholders...
June 2018: Trends in Ecology & Evolution
https://www.readbyqxmd.com/read/29779380/pt-decorated-composition-tunable-pd-fe-pd-c-core-shell-nanoparticles-with-enhanced-electrocatalytic-activity-towards-the-oxygen-reduction-reaction
#9
Yin Xiong, Yao Yang, Francis J DiSalvo, Héctor D Abruña
Design of electrocatalysts with both a high-Pt-utilization efficiency and enhanced electrochemical activity is still the key challenge in the development of proton exchange membrane fuel cells. In the present work, Pd-Fe/C bimetallic nanoparticles (NPs) with an optimal Fe composition and decorated with Pt are introduced as promising catalysts towards the oxygen reduction reaction. These bimetallic nanoparticles have a Pd-Fe@Pd core-shell structure with a surface Pt decoration as established through the use of electron energy loss spectroscopy (EELS) and energy-dispersive X-ray (EDX) spectroscopy...
May 21, 2018: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/29778764/a-method-to-optimize-the-shield-compact-and-lightweight-combining-the-structure-with-components-together-by-genetic-algorithm-and-mcnp-code
#10
Yao Cai, Huasi Hu, Ziheng Pan, Guang Hu, Tao Zhang
To optimize the shield for neutrons and gamma rays compact and lightweight, a method combining the structure and components together was established employing genetic algorithms and MCNP code. As a typical case, the fission energy spectrum of 235 U which mixed neutrons and gamma rays was adopted in this study. Six types of materials were presented and optimized by the method. Spherical geometry was adopted in the optimization after checking the geometry effect. Simulations have made to verify the reliability of the optimization method and the efficiency of the optimized materials...
May 17, 2018: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/29778142/behaviors-and-kinetics-of-toluene-adsorption-desorption-on-activated-carbons-with-varying-pore-structure
#11
Xi Yang, Honghong Yi, Xiaolong Tang, Shunzheng Zhao, Zhongyu Yang, Yueqiang Ma, Tiecheng Feng, Xiaoxu Cui
This work was undertaken to investigate the behaviors and kinetics of toluene adsorption and desorption on activated carbons with varying pore structure. Five kinds of activated carbon from different raw materials were selected. Adsorption isotherms and breakthrough curves for toluene were measured. Langmuir and Freundlich equations were fitted to the equilibrium data, and the Freundlich equation was more suitable for simulating toluene adsorption. The process consisted of monolayer, multilayer and partial active site adsorption types...
May 2018: Journal of Environmental Sciences (China)
https://www.readbyqxmd.com/read/29778057/dynamic-study-of-cr-vi-removal-performance-and-mechanism-from-water-using-multilayer-material-coated-nanoscale-zerovalent-iron
#12
Bin Wu, Dinghua Peng, Siyu Hou, Bicong Tang, Can Wang, Heng Xu
In this study, the dynamic Cr(VI) removal process from water by the synthesized multilayer material coated nanoscale zerovalent iron (SBC-nZVI) was systematically discussed at different treatment conditions. The results showed that initial pH, contact time, Cr(VI) concentration and the dosage of SBC-nZVI were important parameters that influenced the Cr(VI) removal efficiency. The major Cr(VI) removal occurred within 60 min and gradually tend to equilibrium with consistent treatment. The removal efficiency was highly depended on pH values and the adsorption kinetics agreed well with the pseduo-second-order model (PSO)...
May 16, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29777920/modeling-and-manova-studies-on-toxicity-and-endocrine-potential-of-packaging-materials-exposed-to-different-extraction-schemes
#13
Natalia Szczepańska, Błażej Kudłak, Stefan Tsakovski, Galina Yotova, Miroslava Nedyalkova, Vasil Simeonov, Anna Dołęga, Jacek Namieśnik
The stability of the linings of packaging that is in contact with the goods stored has been of major concern during decades of the development of packaging materials. In this work, an attempt was undertaken to assess the applicability of using two bioassays (Microtox® and XenoScreen YES/YAS) in estimating the stability of packaging (cans, caps, multilayer material) and the impact of their degradation on the toxicity of some simulated media. The assessment of the impact of packaging storage conditions (temperature, disinfection, preservation, extracting and washing solvents) was planned and performed with i) regression modeling of the experimental effects on the ecotoxicity readings, ii) ANOVA and MANOVA estimation of the experimental conditions as significant factors affecting the toxicity results and iii) FTIR analysis of the packages...
May 16, 2018: Environmental Research
https://www.readbyqxmd.com/read/29776185/master-stability-functions-reveal-diffusion-driven-pattern-formation-in-networks
#14
Andreas Brechtel, Philipp Gramlich, Daniel Ritterskamp, Barbara Drossel, Thilo Gross
We study diffusion-driven pattern formation in networks of networks, a class of multilayer systems, where different layers have the same topology, but different internal dynamics. Agents are assumed to disperse within a layer by undergoing random walks, while they can be created or destroyed by reactions between or within a layer. We show that the stability of homogeneous steady states can be analyzed with a master stability function approach that reveals a deep analogy between pattern formation in networks and pattern formation in continuous space...
March 2018: Physical Review. E
https://www.readbyqxmd.com/read/29775930/synthesis-photophysical-and-electrochemical-properties-of-a-blue-emitter-with-binaphthalene-and-carbazole-units
#15
Lixia Guo, Xiaoju Wang, Liheng Feng
A blue emitter, 3,3'-(2,2'-dimethoxy-[1,1'-binaphthalene]-6,6'-diyl)bis(9-benzyl-9H-carbazole), was synthesized by Suzuki coupling reaction. The photophysical properties of the emitter in solution were firstly investigated by UV-Vis absorption and fluorescence emission techniques. The results indicate that the emitter has excellent optical and electron transfer properties. The maximum absorption and emission peaks of the emitter are 302 nm and 406 nm with 67.4% fluorescence quantum yield in chloroform, respectively...
May 10, 2018: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/29774618/direct-laser-writing-of-graphene-made-from-chemical-vapor-deposition-for-flexible-integratable-micro-supercapacitors-with-ultrahigh-power-output
#16
Jianglin Ye, Huabing Tan, Shuilin Wu, Kun Ni, Fei Pan, Jie Liu, Zhuchen Tao, Yan Qu, Hengxing Ji, Patrice Simon, Yanwu Zhu
High-performance yet flexible micro-supercapacitors (MSCs) hold great promise as miniaturized power sources for increasing demand of integrated electronic devices. Herein, this study demonstrates a scalable fabrication of multilayered graphene-based MSCs (MG-MSCs), by direct laser writing (DLW) of stacked graphene films made from industry-scale chemical vapor deposition (CVD). Combining the dry transfer of multilayered CVD graphene films, DLW allows a highly efficient fabrication of large-areal MSCs with exceptional flexibility, diverse planar geometry, and capability of customer-designed integration...
May 17, 2018: Advanced Materials
https://www.readbyqxmd.com/read/29773839/layer-by-layer-sirna-poly-l-lysine-multilayers-on-polydopamine-coated-surface-for-efficient-cell-adhesion-and-gene-silencing
#17
Cheol Am Hong, Ho Yeon Son, Yoon Sung Nam
For tissue engineering applications, small interfering RNA (siRNA) is an attractive agent for controlling cellular functions and differentiation. Although polyionic condensation of nucleic acids with polycations has been widely used for gene delivery, siRNA is not strongly associated with cationic carriers due to its low charge density and rigid molecular structures. The use of an excess amount of cationic carriers is often used for siRNA condensation, though they can induce severe cytotoxicity. Here we introduce the self-assembly of siRNA with mild polyelectrolytes into multilayers for efficient gene silencing during cell proliferation...
May 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29771489/3d-cds-au-butterfly-wing-scales-with-hierarchical-rib-structures-for-plasmon-enhanced-photocatalytic-hydrogen-production
#18
Jing Fang, Jiajun Gu, Qinglei Liu, Wang Zhang, Huilan Su, Di Zhang
Localized surface plasmon resonance (LSPR) of plasmonic metals (e.g. Au) can help semiconductors improve their photocatalytic hydrogen (H2) production performance. However, artificial synthesis of hierarchical plasmonic structures down to nanoscales is usually difficult. Here, we adopt butterfly wing scales from Morpho didius to fabricate three dimensional (3D) CdS/Au butterfly wing scales for plasmonic photocatalysis. The as-prepared materials well inherit the pristine hierarchical bio-structures. The 3D CdS/Au butterfly wing scales exhibit high H2 production rate (221...
May 17, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29770514/influence-of-heat-treatment-on-loading-of-polymeric-multilayer-microcapsules-with-rhodamine-b
#19
Alexey V Ermakov, Olga A Inozemtseva, Dmitry A Gorin, Gleb B Sukhorukov, Sergei Belyakov, Maria N Antipina
Layer-by-layer assembled polymeric multilayer capsules (PMC) of micrometer sizes are permeable for molecules below 1 KDa; therefore, the efficacy of such capsules in the delivery of low molecular weight water soluble bioactive compounds and drugs is frequently challenged. Thermally induced contraction of hollow PMC is explored here to enhance their loading efficacy with model compound, fluorescent rhodamine B (RhB). Four bilayered capsules obtained of poly(diallyldimethylammonium chloride)/polystyrene sulfonate ([PDADMAC/PSS]4 ) or poly-l-arginine/dextran sulfate ([PARG/DS]4 ) on sacrificial CaCO3 spherical microparticles are postloaded with RhB at ambient or elevated temperatures...
May 16, 2018: Macromolecular Rapid Communications
https://www.readbyqxmd.com/read/29769759/a-p2p-botnet-detection-scheme-based-on-decision-tree-and-adaptive-multilayer-neural-networks
#20
Mohammad Alauthaman, Nauman Aslam, Li Zhang, Rafe Alasem, M A Hossain
In recent years, Botnets have been adopted as a popular method to carry and spread many malicious codes on the Internet. These malicious codes pave the way to execute many fraudulent activities including spam mail, distributed denial-of-service attacks and click fraud. While many Botnets are set up using centralized communication architecture, the peer-to-peer (P2P) Botnets can adopt a decentralized architecture using an overlay network for exchanging command and control data making their detection even more difficult...
2018: Neural Computing & Applications
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