Materials Literature
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合成了一种萘酰亚胺-罗丹明新型荧光探针N,N＇-罗丹明内酰乙氨基-4-吡啶乙烯基-1,8-萘酰亚胺（PNRh）,并通过核磁氢谱、核磁碳谱及高分辨质谱结构表征.测定了PNRh的固体、乙醇和水的混合溶液中的荧光光谱,实验发现暗室中紫外灯下固体PNRh发出亮黄色荧光,最大发射波长为592 nm.在乙醇和水的混合溶液中,随着含水量的增加,荧光逐渐增强,当含水量达到100%时,荧光强度最大,溶液则由微弱的蓝色荧光变为暗红色的荧光.研究了荧光分子PNRh对金属离子Hg2＋和Cr3＋的选择性识别.实验发现PNRh具有聚集诱导荧光增强的性质,可实现对Hg2＋和Cr3＋的比率和双通道识别,是一种优良的Hg2＋和Cr3＋检测荧光探针.
Mg(OEt)2 with spherical morphology is one of the most important precursors for the preparation of industrial Ziegler-Natta catalysts. In the present article, morphology evolution of Mg(OEt)2 particles is studied in the course of the synthesis. The morphology of Mg(OEt)2 particles is observed throughout the process by…
Electrochemical impedance spectroscopic (EIS) and scanning electrochemical microscopic (SECM) techniques are used primarily to evaluate the corrosion protection performance of epoxy-coated 3% Cr steel. Wet/dry cyclic corrosion tests (EIS) were performed on epoxy-coated carbon and 3% Cr steel samples in a 3 % NaCl solu…
We report on a new modular, dispatchable, and cost-effective solar electricity-generating technology. Solar ThermoElectricity via Advanced Latent heat Storage (STEALS) integrates several state-of-the-art technologies to provide electricity on demand. In the envisioned STEALS system, concentrated sunlight is converted…
Rotational moulding of foamed polyethylene has increasingly become an important process in industry. The main focus of this article is to examine the rotomouldability of a foamed polyethylene and their impact strength. As components produced using rotational moulding process are used in outdoor applications (like over…
Thermodynamic characteristics of cellulose samples having different crystallinity (X) and type of crystalline allomorph (CI to CIV) have been studied. Using methods of combustion calorimetry and DSC, the accurate values of standard enthalpy, AfHo, and free energy of formation, AfGo, as well as melting enthalpy of crys…
Human tissue is bombarded by a huge range of chemicals. Our lungs are inhaling pollution from both stationary and mobile sources as well as inhaled nanoparticles (NPs) and therapeutic products designed to provide new and innovative medical solutions. Our challenge is to identify what exposures are putting us at risk a…
Glioblastoma is a leader among the most malignant brain tumors with the average lifespan of patients around 9-12 months. For prevention and treatment of neuropathology, a variety of therapeutic and surgical approaches are being developed and improved, including radiation and chemical therapy methods. In our work, we i…
An ethanol sensor system is build and tested by means of a platinum in-line catalytic converter on ambient temperature, which acts as a zero reference with an electrochemical sensor, sensitive to ethanol. The system is selective to ethanol and proposed to measure ethanol gas concentrations from fruit. The system's per…
This paper presents an experiment to study the partial discharge (PD) characteristics and development process of the physical models of general insulation defects in gas-insulated switchgear (GIS). Four types of typical artificial insulation defects are designed to imitate the insulation faults in an actual GIS. The e…
This is the first continuous quantification of abiotic and biotic nano-TiO <sub>2</sub> – stimulated H <sub>2</sub> O <sub>2</sub> revealing that measured extracellular and intracellular pro-oxidant endpoints in <italic>C. reinhardtii</italic> can differ significantly.
The nitrogen (N) doped spinel NiCr <sub>2</sub> O <sub>4</sub> has been synthesized at 773 K (N500) and 873 K (N600) by ammonolysis of NiCr <sub>2</sub> O <sub>4</sub> powders to study the effect of anion doping on its structural and magnetic properties.
Residual metal impurities in carbon nanotubes (CNTs) provide a means to distinguish CNT from non-CNT sources of elemental carbon in environmental samples. A practical and cost-effective analytical approach is needed to support routine surface monitoring of CNT metal tracers using wipe sampling. Wipe sampling for CNT m…
FeCo alloy and iron borate composites with homogeneous morphologies of the nanorods were successfully synthesized by heat treatments on iron oxide and Co–B composites.
Colloidal Au–MnO heterodimers were deposited on SiO 2 and calcined at high temperature in air in order to prepare a ligand-free Au–Mn 3 O 4 /SiO 2 model catalyst for CO oxidation with a well-defined Au size and Au–metal oxide interface.
A polyurethane films consisting of PLLA, PPG and PLLA-PPG were prepared using solution casting method. Three types of polyurethane were prepared: PPLA:PMDI, PPG:PMDI and PLLA-PPG:PMDI in the presence of polymeric diphenylmethane diisocyanate (PMDI) as the coupling agent and catalyst, Sn(Oct)2. The aim of this research…
A copolymer nanomedicine mPEG–PEI–PLLA–PTX–NO was synthesized and studied in an OVCAR-8/ADR MDR cancer model.
Well-defined Janus particles with tunable Janus balances are achieved, and the influences of Janus balance have been discussed in detail.
Lead-free (100 − <italic>x</italic> )BiFeO <sub>3</sub> – <italic>x</italic> BaTiO <sub>3</sub> (BFBT <italic>x</italic> , <italic>x</italic> = 0, 30, 33, 40 and 50) piezoelectric thin films were deposited on platinized silicon substrates by using a pulsed laser deposition method.
Electroconductive structural polymer-based nanocomposites (NCs) were prepared by incorporating carbon nanotubes (CNTs) into Polybond (PB) matrix via melt compounding technique. Chemical structure of NCs, investigated via Fourier transform infrared (FTIR) spectroscopy, corroborated successful grafting of CNTs functiona…