Materials Literature
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Photochemical tissue bonding as a new sutureless tissue bonding technique has been applied to repair of the skin, nerves, blood vessels, tendons and other important tissue injuries. Combined collagen dressings with PTB has been applied to repair tissue injuries to achieve more satisfactory results. In this paper, the…
The epidemic of cardiovascular disease (CVD)is a global phenomenon,and the morbidity is increasing rapidly in China.The loss of cardiomyocytes has not been solved yet ,which is the critical issue of CVD.And stem cell transplantation may be a new potential therapy.The therapeutic potential of c-kit + CSCs in cardiac di…
In this paper, with sulfuric acid as a catalyst and acetic acid as solution at the temperature of 120 ℃ and refluxing period for 24 hours, a sterically hindered bulky 9,9-diarylfluorene intermediate of [9-(4-anilino)-9-phenyl-fluorene] had been successfully designed and synthesized with Friedel-Crafts reaction. The mo…
Cell-penetrating peptides are composed of positively-charged amino acids that can mediate molecules or nano-carriers across cell membranes. However, most of the known cell-penetrating peptides have no cell- or tissue-specificity, with affinity to almost all types of cells in internalization. The non-specificity of cel…
An new type of switch “On-Off” fluorescence probe was constructed based on fluorescence carbon dots as a novel strategy to analyze trace histidine(His) which was proposed for the first time. In water solution with pH 7.6, the fluorescence of CDs was quenched with Ru3+ due to the formation of ground state compound thro…
Ce doped TiO2 was prepared via sol-gel method. The as-prepared Ce doped TiO2 was impregnated with diluted H2SO4 to obtain a H2SO4-treated Ce doped TiO2. In succession, the characterizations of X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), pyridine adsorption-FTIR (Py-FTIR), ultraviolet-visib…
The mononuclear Zn(Ⅱ) complex [Zn(2,6-PDA)(phen)H2O]·H2O (1) and binuclear Cu(Ⅰ) complex{[Cu(μ-Ⅰ)(phen)H2O]·H2O}2 (2) (2,6-H2PDA=2,6- pyridinedicarboxylic acid，phen=1,10- phenanthroline monohydrate) have been prepared with hydro-thermal synthesis method. These complexes have been characterized with single-crystal X-ra…
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The biological pacemaker has become a new strategy in the treatment of severe bradycardias,in which a kind of ideal pacemaker cells is a pivotal factor.Here we reviewed the progress in the differentiation of bone-marrow mesenchymal stem cells and adipose-derived stem cells into pacemaker-like cells by means of gene tr…
Due to the performance and economic benefit obtained by scaling, future semiconductor electron devices for logic functions will progress toward ultra-thin-body channels and 2-dimensional (2D) high carrier mobility materials. The significance is that small devices can be made to yield higher performance and greater ene…
Metal ions and metallocofactors play important roles in a broad range of biochemical reactions. Accordingly, it has been estimated that as much as 25–50% of the proteome uses transition metal ions to carry out a variety of essential functions. The metal ions incorporated within metalloproteins fulfill functional roles…
Tin oxide (SnO2) has a high theoretical capacity (~782 mAh/g) but, it experiences large volume changes during charge and discharge cycles that causes rapid capacity fade, which limits its practical use as an anode material. In an attempt to solve this, we coated these particles with ultrathin conductive metal oxide fi…
Solid oxide fuel cells (SOFC) have been demonstrated with high efficiency in energy conversion through electrochemical reactions. However, the durability of SOFC cathodes under real operating conditions is still an important issue for widespread implementation. Chromium-containing interconnect alloys have been reporte…
Single-walled carbon nanotubes (SWNTs) doped with a limited amount of oxygen (O-doped SWNTs) are novel materials due to the appearance of red-shifted new emission and dramatic enhancement of the PL quantum yields compared to those of pristine SWNTs, which are of importance for the development of high performance biose…
Accurate information on thermal conductivity and thermal diffusivity of materials is of central importance in relation to geoscience and engineering problems involving the transfer of heat. Within the geosciences, this applies to all aspects regarding the determination of terrestrial heat flow and subsurface temperatu…
Within the framework of the planned AIDA mission [1], an impactor spacecraft (DART) hits the second component of the asteroid Didymos at hypervelocity. The impact crater will be observed from the AIM spacecraft and an observation of the ejecta plume is possible [1]. This allows conclusions to be drawn about the physic…
Raman spectrometers will form a key component of the analytical suite of future planetary rovers intended to investigate geological processes on Mars. In order to expand the applicability of these spectrometers and use them as analytical tools for the investigation of silicate glasses, a database correlating Raman spe…
Abstract The Adam and Gibbs theory depicts the viscous flow of silicate melts as governed by the cooperative re-arrangement of molecular sub-systems. Considering that such subsystems involve the silicate Q n units ( n = number of bridging oxygens), this study presents a model that links the Q n unit fractions to the m…
In this study, polymerized ionic liquid (PIL) diblock copolymers were explored as solid-state polymer separators as an anion exchange membrane (AEM) for alkaline fuel cells AFCs and as a solid polymer electrolyte (SPE) for lithium-ion batteries. Polymerized ionic liquid (PIL) block copolymers are a distinct set of blo…
A total of twenty three composite soil samples was collected from different geographical areas around the Abou-Zabal phosphate fertilizer factory region area in Egypt. The aim of the present work is to determine the levels of some natural radioactivity in soil samples were collected. Activity concentration of backgrou…