Materials Literature
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Semiconductor–metal hybrid nanostructures (HNs) are promising materials for photovoltaics and photocatalysis because of their efficient charge separation in the excited state. However, analysis of their carrier dynamics has been limited to only a handful of HNs, such as CdSe–Au and CdS–Au. Herein, we synthesized and c…
Over the past few decades, nanotechnology has emerged as a topic of great interest with a wide range of scientific investigations. This highly sophisticated technology covers a vast array of materials and devices including the high-resolution imaging for the early diagnosis of diseases and targeted delivery of genes o…
In this work, the structure and oxidation behaviour of three different zinc coatings were examined. The coatings were formed with hot dip galvanizing, pack cementation and thermal spray methods. Three different oxidation conditions were selected for the tests, which correspond to low, medium and intensive oxidation co…
The wear behavior of as-cast AZ51 alloy was investigated using a pin-on-disc configuration within a load range of 20–380 N and a sliding speed range of 0.1–4.0 m/s under dry sliding conditions. The coefficient of friction and wear rate were measured as a function of applied load at various sliding speeds. Morphologies…
Previously, synthesis of anisotropic particles by seeded polymerizations has involved multiple process steps. In conventional one-pot dispersion polymerization (Dis.P) with a cross-linker added, only spherical particles are produced due to rapid and high cross-linking. In this Article, a straightforward one-pot prepar…
OBJECTIVE: New pegylated thermosensitive polymers were developed to study them as drug vehicles in targeting release nanoparticulate systems of anticancer drugs. METHODS: The drug vehicles were prepared in the form of core-shell nanoparticles using novel polymeric materials synthesized by copolymerization of poly(prop…
We report the growth of ZnO nanocrystallites doped with impurities such as B, N and S by green chemistry route using ultrasound. The effect of intrinsic defects and impurity doping on the structural and optical properties of ZnO nanostructures has been studied and discussed. Characterization studies carried out using…
Real-time optical monitoring of the electron-transfer process was achieved and modulated on individual gold nanoparticles functionalized with graphene. We found that charge accumulation on single gold nanorods (GNRs) depends on the rate of Faradaic reaction, which is synchronized with double-layer charging.
Oriental Journal of Chemistry is a peer reviewed quarterly research journal of pure and applied chemistry. It publishes standard research papers in almost all thrust areas of current chemistry of academic and commercial importance. It provides a platform for rapid publication of quality research papers, reviews and ch…
The field of fluorescent boron complexes has witnessed tremendous developments in recent years. In that context, we have investigated two series of boron difluoride complexes based on 2'-hydroxychalcone and curcuminoid ligands that represent naturally occurring pigment structures. The dyes display significantly large…
This work proposes a method for reducing mechanical stresses induced in thermoelectric (TE) structure to increase the operational life of the device. For this purpose, based on preliminary studies of the deformation and stress contours of existing thermoelectric modules, a new circular arrangement for the thermoelemen…
ABSTRACT Poly( N ‐phenylitaconimide) (polyPhII) was prepared using initiators for continuous activator regeneration atom transfer radical polymerization of PhII using FeBr 3 complexes as catalysts. Conversion reached 69% in 24 h, yielding polyPhII with a number average molecular weight M n = 11,900 and a molecular wei…
Soft colloids--such as polymer-coated particles, star polymers, block-copolymer micelles, microgels--constitute a broad class of materials where microscopic properties such as deformability and penetrability of the particle play a key role in tailoring their macroscopic properties which is of interest in many technolo…
A series of linear controlled rheology polypropylenes were produced through reaction with dicumyl peroxide in the melt state, to investigate the effect of molecular weight and viscosity on foaming. Foaming experiments by compression molding, using a chemical blowing agent (azodicarbonamide), and by batch foaming using…
Phase transitions in charge and orbital degrees of freedom occur successively in the $A$-site ordered perovskite manganite ${\mathrm{SmBaMn}}_{2}{\mathrm{O}}_{6}$ at ${T}_{\mathrm{CO}1}\ensuremath{\approx}370\phantom{\rule{0.28em}{0ex}}\mathrm{K}$ and ${T}_{\mathrm{CO}2}\ensuremath{\approx}190\phantom{\rule{0.28em}{0e…
A new niobium oxyfluoride, Nb2O2F3, synthesized through the reaction of Nb, SnO, and SnF2 in Sn flux, within welded Nb containers, crystallizes in a monoclinic structure (space group: I2/a; a = 5.7048(1)Å, b = 5.1610(1)Å, c = 12.2285(2)Å, β = 95.751(1)°). It features [Nb2X10] units (X = O, F), with short (2.5739(1) Å)…
The corrosion inhibition potentials of Mentha rotundifolia oil on carbon steel in 1 M HCl was studied at different concentrations via gravimetric, electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization techniques. Polarization curves reveal that Mentha rotundifolia oil is a mixed-type inhibitor.…
In this study, body movement comfort performances of three different classical male shirts intended for bellied males were examined through wear trials that were performed on a group of ten subjects. The fitting of the shirts to the body and their comfort during movement were separately analyzed thanks to the wear tri…
Novel flexible Janus nanofibers with magnetism-upconversion luminescence bifunction have been successfully fabricated via electrospinning technology using a homemade parallel spinneret. NaYF4:Yb3+, Er3+and Fe3O4nanoparticles (NPs) were, respectively, incorporated into polyvinyl pyrrolidone (PVP) and electrospun into J…
Beach rock is a peculiar formation when compared to other types of rock formations. One such formation is found in Andaman and Nicobar Island of India. It needs intensive and extensive investigation on its formation. The present work aimed to collect the beach rock samples along the Coast of Andaman Island and subject…