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https://www.readbyqxmd.com/read/28435349/proposal-of-a-new-estimation-method-of-colonization-rate-of-arbuscular-mycorrhizal-fungi-in-the-roots-of-chengiopanax-sciadophylloides
#1
Seitaro Deguchi, Yosuke Matsuda, Chisato Takenaka, Yuki Sugiura, Hajime Ozawa, Yoshimune Ogata
This study proposed a rapid method to quantify the colonization rate of arbuscular mycorrhizal fungi (AMF) in plant roots. The method involved the use of an image analysis software (WinRHIZO Pro). The colonization rate is defined as the ratio of the fungal body to the plant root area in a micrograph. Three seedlings of Chengiopanax sciadophylloides, a woody species that accumulates radiocesium, were collected from a secondary forest in the Yamakiya district of Kawamata, Fukushima Prefecture during May-September 2014...
March 2017: Mycobiology
https://www.readbyqxmd.com/read/28433886/controlled-release-of-metformin-from-chitosan-based-nanocomposite-films-containing-mesoporous-mcm-41-nanoparticles-as-novel-drug-delivery-systems
#2
Zahra Shariatinia, Zahra Zahraee
Biocompatible nanocomposite films based on blended chitosan and poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol) (BP) polymers containing metformin (MET) drug and MCM-41 or MCM-41-APS (APS=aminopropylsilane) nanoparticles (NPs) were designed and fabricated in order to prepare novel drug delivery systems which are useful for controlled drug release purposes. The total pore volume and mesopore volume of MCM-41 were measured equal to 1.08 and 1.05 cm(3)/g but those of MCM-41-APS were 0...
April 13, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28433227/nonsurgical-therapies-for-basal-cell-carcinoma-a-review
#3
S Ariza, S Espinosa, M Naranjo
Basal cell carcinoma (BCC) is the most prevalent malignant tumor in humans and the local destruction of tissue that can result from excision has a significant impact on well-being. Treating BCC is costly for health care systems given the high incidence of this tumor, especially in older patients. Standard treatment involves either resection with histologic assessment of margins or Mohs micrographic surgery. Surgery is sometimes contraindicated, however, due to the presence of significant comorbidity or high cosmetic expectations...
April 19, 2017: Actas Dermo-sifiliográficas
https://www.readbyqxmd.com/read/28432325/chemical-and-electrochemical-synthesis-of-platinum-black
#4
S E Stanca, F Hänschke, A Ihring, G Zieger, J Dellith, E Kessler, H-G Meyer
We present electrochemical and chemical synthesis of platinum black at room temperature in aqueous and non-aqueous media. X-ray analysis established the purity and crystalline nature. The electron micrographs indicate that the nanostructures consist of platinum crystals that interconnect to form porous assemblies. Additionally, the electron micrographs of the platinum black thin layer, which was electrochemically deposited on different metallic and semiconductive substrates (aluminium, platinum, silver, gold, tin-cooper alloy, indium-tin-oxide, stainless steel, and copper), indicate that the substrate influences its porous features but not its absorbance characteristics...
April 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28416866/rheology-and-microstructure-of-kefiran-and-whey-protein-mixed-gels
#5
Hosayn Kazazi, Faramarz Khodaiyan, Karamatollah Rezaei, Malihe Pishvaei, Mohammad Amin Mohammadifar, Sohrab Moieni
The effect of kefiran on cold-set gelation of whey protein isolate (WPI) at 25 °C was studied using rheological measurements and environmental scanning electron microscopy (ESEM). The gelation of samples was induced by the addition of glucono-δ-lactone to the dispersions. WPI concentration was maintained at 8% (w/v) and the concentration of kefiran varied from 0 to 0.08% (w/v). According to rheological measurements, the addition of kefiran into WPI dispersions resulted in a significant increase in the gel strength, the yield stress, and the shear stress values at the flowing point...
April 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28415508/magneto-elastic-biosensors-influence-of-different-thiols-on-pathogen-capture-efficiency
#6
Márcia Dalla Pozza, André L Possan, Mariana Roesch-Ely, Frank P Missell
Magneto-elastic biosensors have mass sensitivity to biological species, offering reliability and reproducibility in the detection of pathogens such as Escherichia coli. In this work, amorphous ribbons of Metglas 2826MB3 were coated with layers of Cr and Au by DC magnetron sputtering and cut to 5mm×1mm. The influence of different thiols on captured pathogens was studied. The compounds cystamine (CYS), cysteamine (CYSTE) and mercaptopropionic acid (MPA) were deposited on Au-covered surfaces, followed by antibodies...
June 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28415443/3-month-parenteral-plga-microsphere-formulations-of-risperidone-fabrication-characterization-and-neuropharmacological-assessments
#7
Sundeep Chaurasia, Kuchukuntla Mounika, Vasudha Bakshi, Vure Prasad
The study aims at formulation and characterization of three months parenteral risperidone loaded polymeric microspheres (p-RLPMs) as a sustained delivery system and established their in vitro and in vivo assessments. The p-RLPMs formulations were prepared by solvent extraction and diffusion method. The optimized p-RLPMs (batch RPLGA-1) formulation demonstrated favorable different physicochemical properties such as mean particle size (104±5.34μm), percent porosity (44.56±3.11%) and percent drug loading (38...
June 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28415400/antibacterial-and-cytocompatible-nanotextured-ti-surface-incorporating-silver-via-single-step-hydrothermal-processing
#8
Anu Mohandas, Amit G Krishnan, Raja Biswas, Deepthy Menon, Manitha B Nair
Nanosurface modification of Titanium (Ti) implants and prosthesis is proved to enhance osseointegration at the tissue-implant interface. However, many of these products lack adequate antibacterial capability, which leads to implant loosening. As a curative strategy, in this study, nanotextured Ti substrates embedded with silver nanoparticles were developed through a single step hydrothermal processing in an alkaline medium containing silver nitrate at different concentrations (15, 30 and 75μM). Scanning electron micrographs revealed a non-periodically oriented nanoleafy structure on Ti (TNL) decorated with Ag nanoparticles (nanoAg), which was verified by XPS, XRD and EDS analysis...
June 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28414934/blood-clot-parameters-thromboelastography-and-scanning-electron-microscopy-in-research-and-clinical-practice
#9
Etheresia Pretorius, Albe C Swanepoel, Sulette DeVilliers, Janette Bester
BACKGROUND: Clotting parameters are informative of overall haematological healthiness of an individual. Particularly, clotting parameters can be used as a measure of the degree of pathology of the coagulation system. Thromboelastography (TEG) is a well-known technique that is an important point-of-care method, as well as research method. Scanning electron microscopy (SEM) is a novel research method, but with possible clinical application. However, there are no clear standardized guidelines for TEG and SEM result interpretation...
April 11, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28414791/speciation-in-progress-a-phylogeographic-study-among-populations-of-hemitrichia-serpula-myxomycetes
#10
Nikki Heherson A Dagamac, Carlos Rojas, Yuri K Novozhilov, Gabriel H Moreno, Rabea Schlueter, Martin Schnittler
Myxomycetes (plasmodial slime molds, Amoebozoa) are often perceived as widely distributed, confounding to the "everything is everywhere" hypothesis. To test if gene flow within these spore-dispersed protists is restricted by geographical barriers, we chose the widespread but morphologically unmistakable species Hemitrichia serpula for a phylogeographic study. Partial sequences from nuclear ribosomal RNA genes (SSU) revealed 40 ribotypes among 135 specimens, belonging to three major clades. Each clade is dominated by specimens from a certain region and by one of two morphological varieties which can be differentiated by SEM micrographs...
2017: PloS One
https://www.readbyqxmd.com/read/28413834/synthesis-and-characterization-of-zinc-oxide-thin-films-for-optoelectronic-applications
#11
E Muchuweni, T S Sathiaraj, H Nyakotyo
Micro-ring structured zinc oxide (ZnO) thin films were prepared on glass substrates by spray pyrolysis and their structural, morphological, optical and electrical properties were investigated. X-ray Diffraction (XRD) analysis revealed the films' hexagonal wurtzite phase with a preferred (002) grain orientation. The mean crystallite size calculated on the basis of the Debye-Scherrer model was 24 nm and a small dislocation density of [Formula: see text] was obtained, indicating the existence of few lattice defects and good crystallinity...
April 2017: Heliyon
https://www.readbyqxmd.com/read/28411790/the-use-of-gentian-violet-2-solution-to-identify-holes-in-the-deep-margin-of-tissue-excised-during-mohs-micrographic-surgery
#12
Thuzar M Shin, Jeremy R Etzkorn, Joseph F Sobanko, Waqas R Shaikh, Stephen J Kovach, Christopher J Miller
No abstract text is available yet for this article.
May 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/28406864/multistep-approach-for-improved-aesthetic-and-functional-outcomes-for-lower-extremity-wound-closure-after-mohs-micrographic-surgery
#13
Elizabeth Kiwanuka, Antonio P Cruz
BACKGROUND: Lower extremity wounds present a major clinical challenge. OBJECTIVE: This paper introduces a new multistep approach for improved aesthetic and functional outcome for lower extremity wound closure after Mohs micrographic surgery. PATIENTS AND METHODS: In this prospective case series, 12 consecutive patients undergoing Mohs micrographic surgery for cutaneous malignancies of the lower extremities underwent closure assisted by elastic bandages, proper positioning with 45° flexion of the knee, buried vertical mattress sutures, and careful eversion, using a premium angled stapler...
April 11, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28406138/inhibition-of-endocytic-pathways-impacts-cytomegalovirus-maturation
#14
Madeline A Archer, Teal M Brechtel, Leslie E Davis, Rinkuben C Parmar, Mohammad H Hasan, Ritesh Tandon
Endocytic processes are critical for cellular entry of several viruses; however, the role of endocytosis in cellular trafficking of viruses beyond virus entry is only partially understood. Here, we utilized two laboratory strains (AD169 and Towne) of human cytomegalovirus (HCMV), which are known to use cell membrane fusion rather than endocytosis to enter fibroblasts, in order to study a post-entry role of endocytosis in HCMV life cycle. Upon pharmacological inhibition of dynamin-2 or clathrin terminal domain (TD) ligand association, these strains entered the cells successfully based on the expression of immediate early viral protein...
April 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28401602/piloting-a-new-patient-related-outcome-tool-to-assess-cosmetic-outcome-in-mohs-micrographic-surgery
#15
A A Yong, V Tan, E Craythorne, R Mallipeddi
Poor cosmetic outcome is associated with significant negative impact on quality of life (QOL).(1) The degree of psychosocial distress may be more correlated with patient perception rather than objective scar severity. The patient's personal assessment is the primary influence on psychosocial morbidity.(1) Therefore, patient-reported outcome (PRO) instruments are valuable in assessing cosmetic outcome and impact on QOL. This article is protected by copyright. All rights reserved.
April 12, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28400324/impact-of-anatase-titanium-dioxide-nanoparticles-on-mutagenic-and-genotoxic-response-in-chinese-hamster-lung-fibroblast-cells-v-79-the-role-of-cellular-uptake
#16
Abhishek Kumar Jain, Violet Aileen Senapati, Divya Singh, Kavita Dubey, Renuka Maurya, Alok Kumar Pandey
The unique physico-chemical properties of nano crystalline anatase titanium dioxide nanoparticles (TiO2 NPs) render them with different biological and chemical activities. Hence, it is widely used in industrial and consumer applications. Previous studies have shown the genotoxicity of TiO2 NPs. However, there is a paucity of data regarding mutagenicity of these NPs. In the present study, the cellular uptake, sub-cellular localization, cytotoxicity and short term DNA interaction of TiO2 NPs (1-100 μgmL(-1)) of diameter ranging from 12 to 25 nm on mammalian lung fibroblast cells (V-79) has been studied...
April 8, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28400062/adm-guidance-ceramics-guidance-to-the-use-of-fractography-in-failure-analysis-of-brittle-materials
#17
Susanne S Scherrer, Ulrich Lohbauer, Alvaro Della Bona, Alessandro Vichi, Michael J Tholey, J Robert Kelly, Richard van Noort, Paulo Francisco Cesar
OBJECTIVES: To provide background information and guidance as to how to use fractography accurately, a powerful tool for failure analysis of dental ceramic structures. METHODS: An extended palette of qualitative and quantitative fractography is provided, both for in vivo and in vitro fracture surface analyses. As visual support, this guidance document will provide micrographs of typical critical ceramic processing flaws, differentiating between pre- versus post sintering cracks, grinding damage related failures and occlusal contact wear origins and of failures due to surface degradation...
April 8, 2017: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/28399362/insights-into-the-morphological-instability-of-bulk-heterojunction-ptb7-th-pcbm-solar-cells-upon-high-temperature-aging
#18
Yen-Ju Hsieh, Yu-Ching Huang, Wei-Shin Liu, Yu-An Su, Cheng-Si Tsao, Syang-Peng Rwei, Leeyih Wang
The impact of the morphological stability of the donor/acceptor mixture under thermal stress on the photovoltaic properties of bulk heterojunction (BHJ) solar cells based on the poly[4,8-bis(5-(2-ethylhexyl)thiophen-2-yl)benzo[1,2-b;4,5-b']-dithiophene-2,6-diyl-alt-(4-(2-ethylhexyl)-3-fluorothieno[3,4-b]-thiophene)-2-carboxylate-2,6-diyl]/phenyl-C61-butyric acid methyl ester (PTB7-Th/PC61BM) blend is extensively investigated. Both optical microscopy and transmission electron microscopy micrographs show that long-term high-temperature aging stimulates the formation of microscale clusters, the size of which, however, is about 1 order of magnitude smaller than those observed in thermally annealed poly(3-hexylthiophene)/PC61BM composite film...
April 18, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28397683/-mohs-surgery-for-basal-cell-carcinoma
#19
Martin Glud, Silje Haukali Omland, John Paoli, Robert Gniadecki
Micrographic surgery is currently the only technique which ensures complete removal of basal cell carcinomas. The major limitation is the high set-up cost, which is particularly connected with specialized training of surgeons, technicians and the set-up of a histology facility for frozen tissue sectioning and staining. In the long run, however, the cost of Mohs surgery per patient does not exceed that of conventional surgery. The technique is very safe and has multiple advantages over any other treatment modality...
February 6, 2017: Ugeskrift for Laeger
https://www.readbyqxmd.com/read/28397600/a-new-species-of-orobdella-hirudinida-arhynchobdellida-orobdellidae-from-japan-reveals-the-function-of-the-orobdella-gastroporal-duct
#20
Takafumi Nakano
A quadrannulate species of Orobdella, O. kanaekoikeae sp. nov., from the mountainous region of Shikoku, Japan is described. This new species is small with a body length of mature individuals reaching only ca. 5 cm. Phylogenetic analyses using nuclear 18S, histone H3, mitochondrial cytochrome c oxidase subunit I, tRNA(Cys), tRNA(Met), 12S rRNA, tRNA(Val), 16S rRNA, tRNA(Leu), and NADH dehydrogenase subunit 1 markers showed that O. kanaekoikeae is a sister species of the quadrannulate small O. brachyepididymis...
April 2017: Zoological Science
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