Materials Literature
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Sintered nanoceramics of Pr ‐doped lanthanum hafnate, La 2 Hf 2 O 7 : Pr , were prepared by means of a high‐pressure sintering technique using nanopowders made by Pechini method. Structure, morphology, and spectroscopic properties of the ceramics compared to the starting powder are presented and discussed. Emission an…
There has been significant progress in utilizing nanotechnology in several areas of cancer care, including in vitro diagnostics, imaging, and therapy. The National Cancer Institute, which currently supports an array of research activities in cancer nanotechnology, convened a strategic workshop to explore the most prom…
In this study we report the synthesis of Bi 1− x In x Fe 1− y Ti y O 3 (0 ≤ x ≤ 0.1, 0 ≤ y ≤ 0.05) nanoparticles by a simple cost effective solution combustion method. Pure BFO samples shows distorted rhombohedral perovskite structure with space group R 3 c which is also supported by Fourier transform infrared spectra…
Diamond and SiC both process extraordinary biocompatible, electronic, and chemical properties. A combination of diamond and SiC may lead to highly stable materials, e.g., for implants or biosensors with excellent sensing properties. Here we report on the controllable surface chemistry of diamond/β-SiC composite films…
An optimization control has been demonstrated to obtain carbon nanotubes having specific diameter distribution, length, homogeneity, and yield during its growth by thermal chemical vapor deposition technique under atmospheric pressure. Carbon nanotubes (CNTs) were grown on silicon wafer where a predeposition of iron c…
pH-Responsive molecular assemblies with a variation in morphology ranging from a twisted ribbon, a helical ribbon, to a nanotube were prepared from a novel A3B-type amphiphilic peptide having three hydrophilic poly(sarcosine) (A block) chains, a hydrophobic helical dodecapeptide (B block), and two histidine (His) resi…
Translocator protein 18 kDa (TSPO) is a promising target for molecular imaging and for targeted drug delivery to tumors overexpressing TSPO. In our previous work, new macromolecular conjugates with a high affinity and selectivity for TSPO were prepared by conjugating the biodegradable poly(d,l-lactic-co-glycolic acid)…
We report some new applications of functional complex networks on acoustic emission waveforms from frictional interfaces. Our results show that laboratory faults undergo a sequence of generic phases as well as strengthening, weakening or fast-slip and slow-slip leading to healing. Also, using functional networks, we e…
Helium Ion Microcopy (HIM) based on Gas Field Ion Sources (GFIS) represents a new ultra high resolution microscopy and nano-fabrication technique. It is an enabling technology that not only provides imagery of conducting as well as uncoated insulating nano-structures but also allows to create these features. The latte…
We study the dynamics of skyrmions in a metallic chiral magnet. First we show that skyrmions can be created dynamically by destabilizing the ferromagnetic background state through a spin polarized current. We then treat skyrmions as rigid particles and derive the corresponding equation of motion. The dynamics of skyrm…
We propose a new method for accurately calculating electrical transport properties of a lightly-doped thermoelectric material from density functional theory (DFT) calculations, based on experimental data and density functional theory results for the corresponding undoped material. We employ this approach because hybri…
Near-infrared (NIR) luminescent lanthanide complexes hold great promise for practical applications, as their optical properties have several complementary advantages over organic fluorophores and semiconductor nanoparticles. The fundamental challenge for lanthanide luminescence is their sensitization through suitable…
Shape Memory Polymer Composites (SMPC) structures, due to their ability to be packed into compact volumes and then later on transformed back to their original shapes, are an ideal solution for deployment problems of large light-weight space structures. Although much research on constitutive laws and qualitative analys…
In this study, a multiscale computational micromechanics based approach is developed to study the effect of applied strains on the effective macroscale piezoresistivity of carbon nanotube (CNT)-polymer and fuzzy fiber-polymer nanocomposites. The computational models developed in this study allow for electron hopping a…
International audience
International audience
International audience
We investigate the nuances of galvanically etched porous silicon that affect combustion. Several porous silicon samples are investigated with high speed imaging, SEM, and gas adsorption porosimetry. Porous silicon characteristics were primarily varied by altering the concentration of hydrofluoric acid in the etch solu…
Functional and non-functional graphite-based polymer nanocomposites have been fabricated via layer by layer polymerization. Functionalization of graphite was achieved by the oxidation of natural graphite, in which widening of the gap between graphite layers occurred facilitating the monomers to polymerize into the gra…
Bu almada, poli(N-vinil kaprolaktam) mikrojellerinin sentezi ve karakterizasyonu gerekletirilmitir. Mikrojellerin sentezi, sulu ortamda serbest radikal katlma polimerizasyonu ile emlsiyon polimerizasyonu tekniine gre yaplmtr. Farkl trde balatc kullanmnn ve farkl reaksiyon scaklklarnn etkisini belirleyebilmek amacyla d…