Materials Literature
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In this work, the effects of cryogenic treatment on the wear behavior of D6 tool steel were studied. For this purpose, two temperatures were used: -63 o C as shallow cryogenic temperature and -185 o C as deep cryogenic temperature. The effects of cryogenic temperature (Shallow and deep), cryogenic time (kept at cryoge…
Expressions of the 22 genes involved in rubber biosynthesis, from the acetyl CoA genesis and the mevalonate (MVA) pathway to IPP polymerization, were analyzed by real-time polymerase chain reaction (PCR). The results revealed that the expressions of most genes were not related to the latex yield trait when compared am…
Human bone marrow derived mesenchymal stem cells (BMMSCs), a source of important autologous stem cells without ethical debate, have been used in both experimental and clinical treatment. Therefore, this research aims to isolate, culture and cryopreserve BMMSCs. Mesenchymal stem cells (MSCs) were preserved in each cryo…
Carbon and carbon fiber reinforced materials are promising materials for use in nuclear reactors, due to their excellent thermal and mechanical properties. In the present studies, experiments were carried out to prepare carbon-carbon(C/C) composites using non-graphitizing precursors such as polyacrylonitrile (PAN) fib…
The extracts from aerial parts (leaves and stem) of Tylophora indica were evaluated for their antioxidant activity. The antioxi dant activity of crude extracts was determined by using DPPH free radical scavenging method in which methanol and ethyl acetate extracts showed high est antioxidant activity (IC 50 values 87…
Fly ash is the waste material, which is obtained after burning coal in Thermal Power Plants. It can be used as a stabilizer for soil due to its pozzolonic effect or an inherent self hardening property under favorable conditions of moisture and compaction. This project aim is to study the effect of fly ash on an expans…
Inflammatory Breast Cancer (IBC) is arguably the most severe form of breast cancer with a very high mortality rate. IBC is distinct from other forms of breast cancer expressing unique cell surface markers such as hypoglycosylated MUC1. However, treatment options for IBC are limited. Calcitriol is a potential treatment…
1,* nghuidrch@163.com me ; Abstract: Background: earlier studies have demonstrated that Peptide RADA16-I (AcN-RADARADARADARADA-CONH2 ) could repair spinal cord injury and optical pathway and restore visual function. The objective of the research is to investigate the role of RADA16-I in the regeneration of peripheral…
Thin films of selenium dioxide (SeO2) were investigated for gamma-irradiation dosimetry purpose. Samples were fabricated using cast method .Thin films of SeO2 were exposed to a Cs-137 gamma-radiation source at a dose rate 0.56 Gy/min at room temperature .Absorption spectra for SeO2 films were recorder and the values o…
Adult mesenchymal stromal cells (MSC), also referred to as mesenchymal stem cells, were detected almost half a century ago in bone marrow and have been studied intensively in the last decade. Different aspects of MSC biology were explored and published. Studies pointed to their localization in different organs during…
Understanding how properties of complex, sequenced (bio)macromolecules derive from structural components is currently a dynamic field of research, and is one that has incredible potential to provide principles governing the development of novel materials with improved or tailored properties. Here, we explore the mecha…
Dental implants are a safe, medically proven, aesthetic alternative to natural tooth root that are currently widely used; however, the risk of infection after surgical implantation seems to be a main concern. In this research, the pure titanium was coated by silver nanoparticles as antibacterial agent. Titanium oxide…
MCM-48 nanoparticle-embedded polymer nanofibers (NPNFs) were prepared from the PVP solution containing MCM-48 nanoparticles (NPs) by the electrospinning technique. X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy-dispersive X-ray spectrometry (EDS) were used to characterize the composition and mo…
The characteristics of native oxide layers on untreated and chemically treated InAlN surfaces were investigated by X-ray photoelectron spectroscopy (XPS). Ammonia (NH 4 OH), hydrochloric acid (HCl), and hydrofluoric acid (HF) were used for chemical treatment. The native oxide layer on an untreated InAlN surface was fo…
El objetivo de este estudio es contribuir al conocimiento de la biodiversidad de coleópteros acuáticos del NE argentino. Los sitios de muestreo corresponden a dos lagunas permanentes ubicadas en el departamento Capital de la provincia de Corrientes, Argentina. Los muestreos fueron realizados desde octubre de 2010 a ma…
Slow oxidation of cobalt(II) ions by aerial oxygen in the presence of S-prolinate led to isolation of a new μ-OH bridged binuclear chiral complex of cobalt(III): Co2(μ-OH)2(S-Pro)4. The X-ray structure of this compound was studied. CoIII ions are located in N2O4 donor sets containing N and O atoms of S-prolinates at t…
This paper is a continuation of a series of publications related to laboratory assessment of the performance of carbon dioxide corrosion inhibitors for oilfield pipelines in the West Siberian region.The test results obtained in U-shaped glass cells are considered.The effects of temperature, carbon dioxide content, tes…
Photonic crystal heterostructures containing two materials and/or two lattice constants are synthesized using the colloids of polystyrene and polymethyl methacrylate by a self-assembling technique. These direct heterostructures with double stop band are infiltrated with zinc oxide by sol-gel method, followed by the re…
Plasma polymer films produced via dielectric barrier discharge under atmospheric conditions can simultaneously host charged segments and poly(dimethysiloxane)/silica like polymers. The former segments afford some anion exchange properties and the latter ones allow stabilization of the whole coating in the presence of…
Multiwalled carbon nanotubes modified with 2-aminoethanethiol (MWNT-AET) were vertically self-assembled on gold electrodes with the assistance of chitosan and Tween. According to AFM and cyclic voltammetric determinations the best results were achieved using chitosan.