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https://www.readbyqxmd.com/read/28330321/antimicrobial-antibiofilm-and-microbial-barrier-properties-of-poly-%C3%AE%C2%B5-caprolactone-cloisite-30b-thin-films
#1
Snigdha Sajeendra Babu, Shiji Mathew, Nandakumar Kalarikkal, Sabu Thomas, Radhakrishnan E K
Development of antibacterial and antibiofilm surfaces is in high demand. In this study, nanocomposite of Poly (ε-caprolactone)/Cloisite 30B was prepared by the solvent casting method. The membranes were characterised by SEM, AFM, and FTIR. Evaluation of water uptake, antimicrobial, antibiofilm, and microbial barrier properties demonstrated a significant antimicrobial and antibiofilm activity against MTCC strain of Staphylococcus haemolyticus and strong biofilm positive Staphylococcus epidermidis of clinical origin at low clay concentrations...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330231/prevalence-of-toxigenic-fungi-in-common-medicinal-herbs-and-spices-in-india
#2
Visenuo Aiko, Alka Mehta
Mycotoxins are unavoidable contaminants of food grains, feeds, medicinal herbs, and spices, posing as health threat to animals and humans. The objective of this study was to screen medicinal herbs and spices for fungi and mycotoxin contamination and evaluate their safety. Sixty-three samples were examined for fungal contamination and fungal load determined using standard microbiological method. Aflatoxin and citrinin were detected using thin layer chromatography and high-performance chromatography technique...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330211/cellulase-production-using-natural-medium-and-its-application-on-enzymatic-hydrolysis-of-thermo-chemically-pretreated-biomass
#3
Shivani Sharma, Vinay Sharma, Arindam Kuila
Lignocellulosic bioethanol is an important renewable fuel for transportation purpose. Commercial production of lignocellulosic bioethanol mainly depends on cost of cellulase production, efficient pretreatment and enzymatic hydrolysis process. In the present study cellulase production from Aspergillus niger under submerged fermentation (SmF) was optimized using coconut water as natural medium. Maximum cellulase production (0.53 IU/mL) was achieved within 3 days of incubation using 8 % (w/v) waste paper and 0...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330192/differential-display-reverse-transcription-pcr-ddrt-pcr-a-new-technology-for-molecular-detection-and-studying-one-of-the-antagonistic-factors-of-bacillus-endophyticus-strain-sa-against-staphylococcus-aureus-mrsa
#4
Mahmoud F Moustafa, Tarek H Taha, M Helal, Sulaiman A Alrumman
Differential Display (DDRT-PCR) is a powerful technique for analyzing differences in gene expression. In-vivo expression technologies and differential display RT-PCR are providing new approaches to further examine a microbe's response to experimental conditions which more closely resemble natural microbial associations and habitats. In this study, Bacillus endophyticus strain SA isolated from the inner tissue of the stem of the cultivated plant (Salvadora persica, Asir, Kingdom of Saudi Arabia) produces an antagonistic factor...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330186/a-comprehensive-study-of-one-step-selenization-process-for-cu-in1-x-ga-x-se2-thin-film-solar-cells
#5
Shih-Chen Chen, Sheng-Wen Wang, Shou-Yi Kuo, Jenh-Yih Juang, Po-Tsung Lee, Chih Wei Luo, Kaung-Hsiung Wu, Hao-Chung Kuo
In this work, aiming at developing a rapid and environmental-friendly process for fabricating CuIn1-x Ga x Se2 (CIGS) solar cells, we demonstrated the one-step selenization process by using selenium vapor as the atmospheric gas instead of the commonly used H2Se gas. The photoluminescence (PL) characteristics indicate that there exists an optimal location with superior crystalline quality in the CIGS thin films obtained by one-step selenization. The energy dispersive spectroscopy (EDS) reveals that the Ga lateral distribution in the one-step selenized CIGS thin film is intimately correlated to the blue-shifted PL spectra...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28330127/diversity-of-toxic-and-phytopathogenic-fusarium-species-occurring-on-cereals-grown-in-karnataka-state-india
#6
H Nagaraja, G Chennappa, K Poorna Chandra Rao, G Mahadev Prasad, M Y Sreenivasa
A total of 198 cereal samples (53 maize, 54 sorghum, 37 paddy and 54 wheat) were collected from 11 districts of Karnataka to understand the percent infection (PI), relative density (RD) and their frequency (Fr) caused by Fusarium spp. All samples were screened by agar plating method using MGA 2.5 agar media and incubated at 25 ± 2 °C for 3-5 days. The study revealed the association of 10 different Fusarium species known trichothecene producers such as Fusarium acuminatum, F. avenaceum, F. crookwellense, F...
June 2016: 3 Biotech
https://www.readbyqxmd.com/read/28329564/polydactyly-in-neurofibromatosis-type-i-a-potential-clue-to-diagnosis
#7
Kate L Kimes, Marie J Han, Patrick J Brown
Neurofibromatosis type 1 is a genetic disorder characterized by variable phenotypic manifestations. The diagnostic criteria, 25 established in 1987, are broad to encompass these pleiotropic findings. Included are the specific osseous manifestations of 26 sphenoid dysplasia and dysplasia or thinning of the cortex of long bones. This review highlights recent evidence on the role of 27 neurofibromin in bone development and suggests consideration for additional diagnostic criteria.
November 15, 2016: Dermatology Online Journal
https://www.readbyqxmd.com/read/28329451/preliminary-experience-with-the-use-of-an-extracellular-matrix-to-augment-the-native-pulmonary-valve-during-repair-of-tetralogy-of-fallot
#8
Anil Dharmapuram, Nagarajan Ramadoss, Sudeep Verma, Vejendla Gouthami, Ivatury Rao
BACKGROUND: During repair of tetralogy of Fallot (TOF), when a transannular patch is needed in case of a small annulus and dysplastic pulmonary valve, we chose to reconstruct the right ventricular outflow tract by augmenting the divided anterior leaflet with an extracellular matrix (ECM) patch to produce a competent valve. In this study, we present our preliminary experience and early outcomes. METHODS: From March 2013 to December 2015, of the 206 patients who underwent primary repair of TOF, 52 required a transannular incision...
March 2017: World Journal for Pediatric & Congenital Heart Surgery
https://www.readbyqxmd.com/read/28329445/nanoscale-imaging-of-current-density-with-a-single-spin-magnetometer
#9
Kevin Chang, Alexander Eichler, Jan Rhensius, Luca Lorenzelli, Christian L Degen
Charge transport in nanostructures and thin films is fundamental to many phenomena and processes in science and technology, ranging from quantum effects and electronic correlations in mesoscopic physics, to integrated charge- or spin-based electronic circuits, to photoactive layers in energy research. Direct visualization of the charge flow in such structures is challenging due to their nanometer size and the itinerant nature of currents. In this work, we demonstrate non-invasive magnetic imaging of current density in two-dimensional conductor networks including metallic nanowires and carbon nanotubes...
March 22, 2017: Nano Letters
https://www.readbyqxmd.com/read/28329036/predictive-value-of-plaque-morphology-assessed-by-frequency-domain-optical-coherence-tomography-for-impaired-microvascular-perfusion-after-elective-stent-implantation-the-intracoronary-electrocardiogram-study
#10
Hiroki Ikenaga, Satoshi Kurisu, Tsukasa Nakao, Shingo Kono, Yoji Sumimoto, Noriaki Watanabe, Takashi Shimonaga, Tadanao Higaki, Toshitaka Iwasaki, Naoya Mitsuba, Ken Ishibashi, Yoshihiro Dohi, Yukihiro Fukuda, Yasuki Kihara
Aims: This study was undertaken to assess the association between plaque features at culprit lesions assessed by frequency-domain optical coherence tomography (FD-OCT) and impaired microvascular perfusion estimated by intracoronary electrocardiogram (IcECG) after elective percutaneous coronary intervention (PCI). Furthermore, we investigated whether IcECG could predict future cardiac events. Methods and results: This study consisted of 84 patients who underwent both FD-OCT and IcECG during PCI...
March 7, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28329001/experimental-demonstration-of-the-possible-role-of-acanthamoeba-polyphaga-in-the-infection-and-disease-progression-in-buruli-ulcer-bu-using-icr-mice
#11
Bright K Azumah, Phyllis G Addo, Alfred Dodoo, Gordon Awandare, Lydia Mosi, Daniel A Boakye, Michael D Wilson
The transmission of Buruli ulcer (BU), caused by Mycobacterium ulcerans (MU), remains puzzling although a number of hypothesis including through bites of infected aquatic insects have been proposed. We report the results of experiments using ICR mice that give credence to our hypothesis that Acanthamoeba species may play a role in BU transmission. We cocultured MU N2 and MU 1615 which expresses red fluorescent protein (RFP) and Acanthamoeba polyphaga (AP), and confirmed infected AP by Ziehl-Neelsen (ZN) staining...
2017: PloS One
https://www.readbyqxmd.com/read/28328606/influence-factor-in-thickness-of-cyst-wall-of-epidermal-cysts
#12
Hyung Jun Min, Jeong Min Lee, Jung Kyu Han, Yu Jin Kim
PURPOSE: An epidermal cyst is one of the most common benign tumors of the skin and its major treatment method is excision. Surgical excision is treatment of choice for epidermal cysts, but the cyst wall may be ruptured during operation, especially when the cyst wall is relatively thin. The incomplete excision of the cyst sometimes occurs because of a rupture of the cyst and incomplete excision may cause recurrence. The purpose of this study is to evaluate the factors that can influence the thickness of the cyst wall of epidermal cysts...
March 21, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28328601/improving-the-results-of-cross-lip-vermilion-flap-in-cleft-patients
#13
Amin Rahpeyma, Saeedeh Khajehahmadi
Cross lip vermilion flap is a myomucosal flap that uses lower red lip to augment deficient upper lip vermilion. Technical note that helps in imitating upper lip tubercle structure is presented. Appropriate patient selection to prevent unfavorable results such as color mismatch, local vermilion excess, and lower lip thinning are presented. Indirect benefits of this flap for decreasing upper incisor tooth show and better balance of upper/lower lip thickness are discussed.
March 21, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28328559/up-to-date-proposal-for-a-histologic-subcategorization-of-thin-melanomas
#14
Luca Roncati, Teresa Pusiol, Francesco Piscioli
No abstract text is available yet for this article.
March 21, 2017: Advances in Anatomic Pathology
https://www.readbyqxmd.com/read/28328322/novel-lc-ms-ms-and-high-throughput-mass-spectrometric-assays-for-monoacylglycerol-acyltransferase-inhibitors
#15
Jenson Qi, John A Masucci, Wensheng Lang, Margery A Connelly, Gary W Caldwell, Ioanna Petrounia, Jennifer Kirkpatrick, Alexander N Barnakov, Geoffrey Struble, Robyn Miller, Keli Dzordzorine, Gee-Hong Kuo, Michael Gaul, Alessandro Pocai, Seunghun Lee
Monoacylglycerol acyltransferase enzymes (MGAT1, MGAT2, and MGAT3) convert monoacylglycerol to diacylglycerol (DAG). MGAT1 and MGAT2 are both implicated in obesity-related metabolic diseases. Conventional MGAT enzyme assays use radioactive substrates, wherein the product of the MGAT-catalyzed reaction is usually resolved by time-consuming thin layer chromatography (TLC) analysis. Furthermore, microsomal membrane preparations typically contain endogenous diacylglycerol acyltransferase (DGAT) from the host cells, and these DGAT activities can further acylate DAG to form triglyceride (TG)...
April 2017: SLAS Discov
https://www.readbyqxmd.com/read/28328207/same-precursor-two-different-products-comparing-the-structural-evolution-of-in-ga-o-gel-derived-powders-and-so-lution-cast-films-using-pair-distribution-function-analysis
#16
Suzannah R Wood, Keenan N Woods, Paul N Plassmeyer, David A Marsh, Darren W Johnson, Catherine J Page, Kirsten M O Jensen, David C Johnson
Amorphous metal oxides are central to a variety of technological applications. In particular, indium gallium oxide has garnered attention as a thin-film transistor channel layer material. In this work we examine the structural evolution of indium gallium oxide gel-derived powders and thin films using X-ray diffraction, infrared vibrational spectroscopy, and pair distribution function analysis of X-ray total scattering from standard (PDF) and normal incidence thin film (tfPDF) geometries. We find that the gel-derived powders and films from the same aqueous precursor evolve differently with temperature, forming mixtures of Ga-substituted In2O3 and In-substituted β-Ga2O3 with different degrees of substitution...
March 22, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28328195/degradation-dynamics-for-electrochromic-wo3-films-under-extended-charge-insertion-extraction-unveiling-physicochemical-mechanisms
#17
Rui-Tao Wen, Sara Malmgren, Claes G Granqvist, Gunnar A Niklasson
Degradation of electrochromic thin films under extended charge insertion/extraction is a technically important phenomenon for which no in-depth understanding is currently at hand. Here we report on an explorative study of sputter-deposited WO3 films in a Li-ion-conducting electrolyte by use of cyclic voltammetry, in situ optical transmittance, and impedance spectroscopy. A cycling-dependent decrease of the charge capacity could be accurately modeled by a power-law function, and impedance spectroscopy gave evidence for anomalous diffusion as well a higher charge transfer resistance during deintercalation than during intercalation...
March 22, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28328138/homozygous-mutation-in-ptrh2-gene-causes-progressive-sensorineural-deafness-and-peripheral-neuropathy
#18
Rajech Sharkia, Stavit A Shalev, Abdelnaser Zalan, Milit Marom-David, Nathan Watemberg, Jill E Urquhart, Sarah B Daly, Sanjeev S Bhaskar, Simon G Williams, William G Newman, Ronen Spiegel, Abdussalam Azem, Orly Elpeleg, Muhammad Mahajnah
PTRH2 is an evolutionarily highly conserved mitochondrial protein that belongs to a family of peptidyl-tRNA hydrolases. Recently, patients from two consanguineous families with mutations in the PTRH2 gene were reported. Global developmental delay associated with microcephaly, growth retardation, progressive ataxia, distal muscle weakness with ankle contractures, demyelinating sensorimotor neuropathy, and sensorineural hearing loss were present in all patients, while facial dysmorphism with widely spaced eyes, exotropia, thin upper lip, proximally placed thumbs, and deformities of the fingers and toes were present in some individuals...
April 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28328116/brain-morphology-in-children-with-nevoid-basal-cell-carcinoma-syndrome
#19
Tadashi Shiohama, Katsunori Fujii, Toshiyuki Miyashita, Hiromi Mizuochi, Hideki Uchikawa, Naoki Shimojo
Brain morphology is tightly regulated by diverse signaling pathways. Hedgehog signaling is a candidate pathway considered responsible for regulating brain morphology. Nevoid basal cell carcinoma syndrome (NBCCS), caused by a PTCH1 mutation in the hedgehog signaling pathway, occasionally exhibits macrocephaly and medulloblastoma. Although cerebellar enlargement occurs in ptch1 heterozygous-deficient mice, its impact on human brain development remains unknown. We investigated the brain morphological characteristics of children with NBCCS...
April 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28328071/investigation-of-c3-s-hydration-mechanism-by-transmission-electron-microscope-tem-with-integrated-super-x-tm-eds-system
#20
Y Sakalli, R Trettin
Tricalciumsilicate (C3 S, Alite) is the major component of the Portland cement clinker. Hydration of Alite is decisive in influencing the properties of the resulting material. This is due to its high content in cement. The mechanism of the hydration of C3 S is very complicated and not yet fully understood. There are different models describing the hydration of C3 S in various ways. In this work for a better understanding of hydration mechanism, the hydrated C3 S was investigated by using the transmission electron microscope (TEM) and for the first time, the samples for the investigations were prepared by using of focused ion beam from sintered pellets of C3 S...
March 22, 2017: Journal of Microscopy
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