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https://www.readbyqxmd.com/read/29162855/three-dimensional-honeycomb-patterned-fibrinogen-based-nanofibers-induce-substantial-osteogenic-response-of-mesenchymal-stem-cells
#1
Salima Nedjari, Firas Awaja, George Altankov
Stem cells therapy offers a viable alternative for treatment of bone disorders to the conventional bone grafting. However clinical therapies are still hindered by the insufficient knowledge on the conditions that maximize stem cells differentiation. Hereby, we introduce a novel 3D honeycomb architecture scaffold that strongly support osteogenic differentiation of human adipose derived mesenchymal stem cells (ADMSCs). The scaffold is based on electrospun hybrid nanofibers consisting of poly (L-lactide ε-caprolactone) and fibrinogen (PLCL/FBG)...
November 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29160378/honeycombing
#2
Edson Marchiori, Bruno Hochhegger, Gláucia Zanetti
No abstract text is available yet for this article.
September 2017: Jornal Brasileiro de Pneumologia: Publicaça̋o Oficial da Sociedade Brasileira de Pneumologia e Tisilogia
https://www.readbyqxmd.com/read/29157913/evaluation-of-optimum-conditions-for-achyranthes-bidentata-polysaccharides-encapsulated-in-cubosomes-and-immunological-activity-in-vitro
#3
Ning Ou, Yaqing Sun, Shuzhen Zhou, Pengfei Gu, Zhengguang Liu, Ruonan Bo, Yuanlaing Hu, Jiaguo Liu, Deyun Wang
Cubosomes, as biocompatible carriers in drug delivery systems, consist of curved bicontinuous lipid bilayers. With a honeycombed structure divided into two internal aqueous channels, cubosomes could be used for many bioactive ingredients. Achyranthes bidentata polysaccharides (ABPs) are isolated from the roots of Achyranthes bidentata, used in Chinese herbal medicine, and present a noticeable effect as an immunomodulator. This study investigates the optimal preparation of combined cubosome-ABP (Cub-ABP) nanoparticles using response surface methodology and explores their characteristics and stability...
November 17, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29156881/mesoscale-graphene-like-honeycomb-mono-and-multi-layers-constructed-via-self-assembly-of-co-clusters
#4
Xue-Sen Hou, Guo-Long Zhu, Li-Jun Ren, Zihan Huang, Rui-Bin Zhang, Goran Ungar, Li-Tang Yan, Wei Wang
Honeycomb structure endows graphene with extraordinary properties. But could a honeycomb monolayer superlattice also be gen-erated via self-assembly of colloids or nanoparticles? Here we report the construction of mono- and multilayer molecular films with honeycomb structure that can be regarded as self-assembled artificial graphene (SAAG). We construct fan-shaped molecular building blocks by covalently connecting two kinds of clusters, one polyoxometalate (POM) and four polyhedral oligomeric silsesquioxanes (POSS)...
November 21, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/29152568/moir%C3%A3-excitons-from-programmable-quantum-emitter-arrays-to-spin-orbit-coupled-artificial-lattices
#5
Hongyi Yu, Gui-Bin Liu, Jianju Tang, Xiaodong Xu, Wang Yao
Highly uniform and ordered nanodot arrays are crucial for high-performance quantum optoelectronics, including new semiconductor lasers and single-photon emitters, and for synthesizing artificial lattices of interacting quasiparticles toward quantum information processing and simulation of many-body physics. Van der Waals heterostructures of two-dimensional semiconductors are naturally endowed with an ordered nanoscale landscape, that is, the moiré pattern that laterally modulates electronic and topographic structures...
November 2017: Science Advances
https://www.readbyqxmd.com/read/29148728/neutral-luminescent-metal-organic-frameworks-structural-diversification-photophysical-properties-and-sensing-applications
#6
Gouri Chakraborty, Sanjay K Mandal
Utilizing flexible bis(tridentate)polypyridyl ligands, the two new luminescent 2D metal organic frameworks {Zn2(tpbn)(2,6-NDC)2}n (1) and {[Zn2(tphn)(2,6-NDC)2]·4H2O}n (2), where tpbn = N,N',N″,N‴-tetrakis(2-pyridylmethyl)-1,4-diaminobutane, tphn = N,N',N″,N‴-tetrakis(2-pyridylmethyl)-1,6-diaminohexane, and 2,6-H2NDC = 2,6-naphthalenedicarboxylic acid, have been isolated in good yields under solvothermal conditions. Their solid-state molecular structures have been determined by single-crystal X-ray diffractometry...
November 17, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/29146916/deposition-of-topological-silicene-germanene-and-stanene-on-graphene-covered-sic-substrates
#7
Filipe Matusalem, Daniel S Koda, Friedhelm Bechstedt, Marcelo Marques, Lara K Teles
Growth of X-enes, such as silicene, germanene and stanene, requires passivated substrates to ensure the survival of their exotic properties. Using first-principles methods, we study as-grown graphene on polar SiC surfaces as suitable substrates. Trilayer combinations with coincidence lattices with large hexagonal unit cells allow for strain-free group-IV monolayers. In contrast to the Si-terminated SiC surface, van der Waals-bonded honeycomb X-ene/graphene bilayers on top of the C-terminated SiC substrate are stable...
November 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29145134/comparative-analyses-of-catalytic-degradation-of-pcdd-fs-in-the-laboratory-vs-industrial-conditions
#8
Ming-Xiu Zhan, Jian-Ying Fu, Long-Jie Ji, Ivan Deviatkin, Sheng-Yong Lu
This study investigates the efficiencies and mechanisms of the catalytic degradation of polychlorinated dibenzo-p-dioxins and furans (PCDD/Fs) first, in simulated laboratory conditions and then, in a commercial municipal solid waste incineration (MSWI) plant. Five commercially available V2O5-WO3/TiO2 (VWTi) catalysts were tested. The degradation efficiency of PCDD/Fs in the simulated flue gas ranged 22.8-91.7% and was generally higher than that in the MSWI flue gas of 8.0-85.4%. The degradation efficiency of PCDD/Fs in the real flue gas of the MSWI plant was largely hindered by the complex composition of the flue gas, which could not be completely reproduced in the simulated laboratory conditions...
October 24, 2017: Chemosphere
https://www.readbyqxmd.com/read/29145019/ordered-cylindrical-micropatterned-petri-dishes-used-as-scaffolds-for-cell-growth
#9
Van-Tien Bui, Le Thi Thuy, Joon Sig Choi, Ho-Suk Choi
Three-dimensional (3D) culture dish patterned with a microwell structure demonstrates a great application potential in biotechnology. This study reports on the easy fabrication of an ordered customizable honeycomb microwell array on the surface of polymer substrates including the commercial Petri dish to create a biological platform for cell culture. The fabrication method is based on a very simple solvent dip-coating technique and the methanol accumulation-induced phase separation in which a binary mixture of chloroform and methanol is used to induce a ternary solution and to guarantee the formation of the ordered pore array on the substrate...
November 10, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/29143072/the-extent-of-ground-glass-attenuation-is-a-risk-factor-of-chemotherapy-related-exacerbation-of-interstitial-lung-disease-in-patients-with-non-small-cell-lung-cancer
#10
Takeshi Masuda, Chihiro Hirano, Yasushi Horimasu, Taku Nakashima, Shintarou Miyamoto, Hiroshi Iwamoto, Shinichiro Ohshimo, Kazunori Fujitaka, Hironobu Hamada, Noboru Hattori
OBJECTIVES: Chemotherapy-related acute exacerbation (AE) of interstitial lung disease (ILD) is observed in certain patients with non-small cell lung cancer (NSCLC) who have ILD. Although the prognosis of AE-ILD is extremely poor, there are no established risk factors for its occurrence. Therefore, we retrospectively investigated whether high-resolution computed tomography (HRCT) findings could identify risk factors for AE-ILD. MATERIALS AND METHODS: Between January 2005 and December 2016, 35 patients with NSCLC who received chemotherapy at Hiroshima University Hospital and were diagnosed with ILD on HRCT were enrolled...
November 15, 2017: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/29141422/coverage-dependent-molecular-assembly-of-anthraquinone-on-au-111
#11
Andrew S DeLoach, Brad R Conrad, T L Einstein, Daniel B Dougherty
A scanning tunneling microscopy study of anthraquinone (AQ) on the Au(111) surface shows that the molecules self-assemble into several structures depending on the local surface coverage. At high coverages, a close-packed saturated monolayer is observed, while at low coverages, mobile surface molecules coexist with stable chiral hexamer clusters. At intermediate coverages, a disordered 2D porous network interlinking close-packed islands is observed in contrast to the giant honeycomb networks observed for the same molecule on Cu(111)...
November 14, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/29140119/ct-features-of-the-usual-interstitial-pneumonia-pattern-differentiating-connective-tissue-disease-associated-interstitial-lung-disease-from-idiopathic-pulmonary-fibrosis
#12
Jonathan H Chung, Christian W Cox, Steven M Montner, Ayodeji Adegunsoye, Justin M Oldham, Aliya N Husain, Rekha Vij, Imre Noth, David A Lynch, Mary E Strek
OBJECTIVE: A substantial proportion of cases of usual interstitial pneumonia (UIP) are due to connective tissue disease (CTD)-associated interstitial lung disease (ILD). The purpose of this study was to determine whether specific CT findings can help differentiate a UIP pattern of CTD-ILD from a UIP pattern of idiopathic pulmonary fibrosis (IPF) and whether these signs are associated with survival. MATERIALS AND METHODS: Adults visiting an ILD clinic from 2006 to 2015 enrolled in a research registry with a multidisciplinary diagnosis of CTD-ILD or IPF and a UIP pattern at high-resolution CT were included in the study...
November 15, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29139545/the-effect-of-ice-crystals-formations-on-the-flesh-quality-of-frozen-horse-mackerel-trachurus-japonicus
#13
Yao Wang, Riho Miyazaki, Shinobu Saitou, Katsuya Hirasaka, Satoshi Takeshita, Katsuyasu Tachibana, Shigeto Taniyama
It is known that the formation of ice crystals has a negative impact on the flesh quality of frozen meat. This study focuses on how the formation of ice crystals in the dorsal ordinary muscle affects the flesh quality of frozen horse mackerel (Trachurus japonicus). Freeze-thawed muscle specimens (F-TMS) of horse mackerel were first stored at -24°C and then thawed. The K-value, expressible water, breaking strength of unfrozen muscle specimens (UMS) and F-TMS, and histological structure (light microscope: LM, scanning electron microscope: SEM) of UMS, frozen muscle specimens (FMS) and F-TMS were investigated...
November 15, 2017: Journal of Texture Studies
https://www.readbyqxmd.com/read/29136304/reversible-polymerization-of-adamantane-type-p4n10-10-anions-to-honeycomb-type-p2n5-5-layers-under-high-pressure
#14
Eva-Maria Bertschler, Robin Niklaus, Wolfgang Schnick
The high-pressure polymorph Li5P2N5 of Li10P4N10 (= "2 Li5P2N5") was synthesized by high-pressure/high-temperature reaction of LiPN2 and Li7PN4 or beta-Li10P4N10 at 9 GPa, using the Li3N self-flux method in a Walker-type multianvil assembly. Li5P2N5 is the first lithium nitridophosphate with a layered structure and is made up of corner sharing PN4 tetrahedra forming a corrugated honeycomb-type layer of linked sechser-rings in chair conformation. The arrangement of the P atoms is analogous to that of black phosphorus...
November 14, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/29134702/editable-supercapacitors-with-customizable-stretchability-based-on-mechanically-strengthened-ultralong-mno2-nanowire-composite
#15
Zhisheng Lv, Yifei Luo, Yuxin Tang, Jiaqi Wei, Zhiqiang Zhu, Xinran Zhou, Wenlong Li, Yi Zeng, Wei Zhang, Yanyan Zhang, Dianpeng Qi, Shaowu Pan, Xian Jun Loh, Xiaodong Chen
Although some progress has been made on stretchable supercapacitors, traditional stretchable supercapacitors fabricated by predesigning structured electrodes for device assembling still lack the device-level editability and programmability. To adapt to wearable electronics with arbitrary configurations, it is highly desirable to develop editable supercapacitors that can be directly transferred into desirable shapes and stretchability. In this work, editable supercapacitors for customizable shapes and stretchability using electrodes based on mechanically strengthened ultralong MnO2 nanowire composites are developed...
November 14, 2017: Advanced Materials
https://www.readbyqxmd.com/read/29134066/the-electric-honeycomb-an-investigation-of-the-rose-window-instability
#16
Muhammad Shaheer Niazi
The Rose window instability is a little-explored electrohydrodynamic instability that manifests when a layer of low-conducting oil is placed in an electric field generated by corona discharge in a point-to-plane configuration. Above a critical voltage, the instability starts as a single dimple in the oil layer right below the point electrode and subsequently evolves into a characteristic pattern of polygonal cells. In this study, we experimentally explore governing parameters that guide the instability and document geometric attributes of the characteristic cellular pattern...
October 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/29127320/crystalline-soda-can-metamaterial-exhibiting-graphene-like-dispersion-at-subwavelength-scale
#17
Simon Yves, Fabrice Lemoult, Mathias Fink, Geoffroy Lerosey
Graphene, a honeycomb lattice of carbon atoms ruled by tight-binding interaction, exhibits extraordinary electronic properties due to the presence of Dirac cones within its band structure. These intriguing singularities have naturally motivated the discovery of their classical analogues. In this work, we present a general and direct procedure to reproduce the peculiar physics of graphene within a very simple acoustic metamaterial: a double lattice of soda cans resonating at two different frequencies. The first triangular sub-lattice generates a bandgap at low frequency, which induces a tight-binding coupling between the resonant defects of the second honeycomb one, hence allowing us to obtain a graphene-like band structure...
November 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29125174/self-assembly-of-cubic-colloidal-particles-at-fluid-fluid-interfaces-by-hexapolar-capillary-interactions
#18
Giuseppe Soligno, Marjolein Dijkstra, René van Roij
Colloidal particles adsorbed at fluid-fluid interfaces can self-assemble, thanks to capillary interactions, into 2D ordered structures. Recently, it has been predicted by theoretical and numerical calculations [G. Soligno et al., Phys. Rev. Lett., 2016, 116, 258001] that cubes with smooth edges adsorbed at a flat fluid-fluid interface generate hexapolar capillary deformations that cause the particles to self-assemble into honeycomb and hexagonal lattices, at equilibrium and for Young's contact angle π/2. Here we extend these results...
November 10, 2017: Soft Matter
https://www.readbyqxmd.com/read/29124967/inhibitory-effect-of-biofilm-forming-lactobacillus-kunkeei-strains-against-virulent-pseudomonas-aeruginosa-in-vitro-and-in-honeycomb-moth-galleria-mellonella-infection-model
#19
P Berríos, J A Fuentes, D Salas, A Carreño, P Aldea, F Fernández, A N Trombert
Biofilms correspond to complex communities of microorganisms embedded in an extracellular polymeric matrix. Biofilm lifestyle predominates in Pseudomonas aeruginosa, an opportunistic Gram negative pathogen responsible for a wide spectrum of infections in humans, plants and animals. In this context, anti-biofilm can be considered a key strategy to control P. aeruginosa infections, thereby more research in the field is required. On the other hand, Lactobacillus species have been described as beneficial due to their anti-biofilm properties and their consequent effect against a wide spectrum of pathogens...
November 10, 2017: Beneficial Microbes
https://www.readbyqxmd.com/read/29119168/nanowire-sensors-monitor-bacterial-growth-kinetics-and-response-to-antibiotics
#20
B Ibarlucea, T Rim, C K Baek, J A G M de Visser, L Baraban, G Cuniberti
Miniaturized and cost-efficient methods aiming at high throughput analysis of microbes are of great importance for the surveillance and control of infectious diseases and the related issue of antimicrobial resistance. Here we demonstrate a miniature nanosensor based on a honeycomb-patterned silicon nanowire field effect transistor (FET) capable of detection of bacterial growth and antibiotic response in microbiologically relevant nutrient media. We determine the growth kinetics and metabolic state of Escherichia coli cells in undiluted media via the quantification of changes in the source-drain current caused by varying pH values...
November 9, 2017: Lab on a Chip
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