Materials Literature
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Pure and Sr-doped lanthanum titanate ceramics were prepared by conventional solid state reaction method. The microstructures and dielectric properties of La2−xSrxTi2O7 (LSTO) (x = 0, 0.05, 0.1 and 0.2) ceramics were investigated. Results show that all the ceramics possess high relative density and a single phase. Stro…
The reaction kinetics and formation mechanism of oriented attachment for shaped nanoparticles in solution are not well-understood. We present the reaction kinetics and formation mechanism of organic-capped anatase TiO 2 nanorods in solution as a case study for the oriented attachment process using small-angle X-ray sc…
Here we synthesized silica-coated NaYF4:Yb,Tm@NaGdF4 nanoparticles with hypocrellin photosensitizers covalently incorporated inside the silica shells, combining dual modal imaging and photodynamic therapy (PDT) functions together. Under excitation at 980 nm, the tumor-targeting specificity of the as-prepared nanomater…
The authors describe the synthesis and characterization of two different five-member heterocycle derivatives (thiazole and thiadiazole) by several organic procedures. These compounds were characterized by FTIR, 1H NMR, and elemental analyses. Also, the authors attempt to study the inhibition effects of these derivativ…
Ordered mesoporous carbons, as potential catalyst supports, have attracted great attention in the catalysis field in recent years. Researchers have attempted to introduce guest particles into these carbons by versatile methods. Great success has been achieved with noble metal particles because of their lower sintering…
A homologous series of pentadecyl phenol functionalized perylenebisimide (PBI) terminated with trialkoxy gallate esters was synthesized, where the terminal alkyl chain length was varied from n = 4 to 12 (PBI-En). The thermotropic liquid crystalline (LC) characteristics of the molecules were analyzed using differential…
We numerically and experimentally introduce a chiral metamaterial (MTM) showing strong optical activity, dynamical circular dichroism, and mechanical tunability because of its efficient design. The proposed chiral MTM structure is composed of bi-layered discontinuous cross-wire-strips, and utilized in order to realize…
Tin oxide (SnO2) nanofibers are successfully prepared by electrospinning homogeneous viscous solutions of tin acetate in polyvinyl alcohol (PVA) in the ratios of 20:80, 25:75 and 30:70 (by weight). The electrospinning is carried out by applying a DC voltage of 7 kV to the tip of a syringe and maintaining the tip to co…
Intermolecular hydrogen bonds are effective forces in hampering molecular rotation and in enhancing emission of luminogenic polymers and blends with aggregation-induced emission property.
For applications in micro- and nanotechnologies the lateral resolution of optical 3-D microscopes becomes an issue of increasing relevance. However, lateral resolution of 3-D microscopes is hard to define in a satisfying way. Therefore, we first study the measurement capabilities of a highly resolving white-light inte…
We report enhanced thermoelectric (TE) performance in CdO by using thermally insulating nano-particles to mimic nano pores in the composite. Through simply mechanical alloying, we fabricated CdO-SiO2 composites with varying nano-SiO2 concentration from 0.1 to 3 at%. Due to the very low thermal conductivity of nano-SiO…
The solubilities of 2,3-dichloronitrobenzene in aqueous solutions of methanol and ethanol with various concentrations were determined at temperatures ranging from (278.15 to 303.15) K under atmospheric pressure of 0.1 MPa. The solubility of 2,3-dichloronitrobenzene increases with increments in both temperature and mas…
The porous polymer foams act as a template for neotissuegenesis in tissue engineering, and, as a reservoir for cell transplants such as pancreatic islets while simultaneously providing a functional interface with the host body. The fabrication of foams with the controlled shape, size and pore structure is of prime imp…
The initial growth of bismuth (Bi) on epitaxial graphene (EG) on SiC(0001) at low deposition rates has been investigated using low temperature scanning tunneling microscopy (LT-STM) and synchrotron-based photoemission spectroscopy (PES). PES measurements reveal an islanding growth mode of Bi on EG due to weak interfac…
Polyethylene glycol (PEG) has been heavily used as a building block in the design of stealth nanocarriers for drug delivery. Besides allowing a PEGylated particle to avoid opsonization by serum proteins, the shielding effect of grafted PEG molecules suppresses the nanoparticle (NP)-induced bending of the biomembrane.…
Highly aligned polyimide (PI) and PI/multi-walled carbon nanotubes (PI/MWCNTs) nanofibrous composites by incorporating poly(ethylene oxide) as the dispersing medium were fabricated using electrospinning technique. The morphology, mechanical, and electrical properties of the electrospun nanofibrous composites were inve…
Bamboo fiber was considered a good candidate for the reinforcement of green composites. The applications of bamboo fibers as reinforcements in fabric or structural forms to constitute composites have been widely investigated. This study conducted the process from the bamboo strips to the fibers that were compounded wi…
Vertical migration by diatoms is a well-known phenomenon, occurring in intertidal and subtidal benthic biofilms. It is partially endogenously driven, as cell movements can be observed in the absence of external stimuli such as light, temperature or water cover. Although vertical migration of diatoms under constant con…
The objective of the present study was to prepare a micellar polymeric carrier for the delivery of Docetaxel (DTX) as a kind of polysorbate free preparation. Pluronic F127 (PF127) was conjugated to cholesterol (Chol) via succinyl linkage and characterized by FTIR and HNMR. DTX-loaded polymeric micelles were prepared v…
In this work, use of polyoxymethylene (POM) as a polymeric nucleating agent for poly(lactic acid) (PLA) was studied. The compounding was performed using a twin-screw extruder. Effects of POM on isothermal crystallization of PLA at temperatures ranging from 106 °C to 111 °C and visible transmittance of PLA were examine…