Materials Literature
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Zirconia-nickel functionally graded materials were obtained by powder metallurgy technique. The microstructure, residual stress, fracture toughness and Vickers hardness were investigated. Mixed-mode fracture response of YSZ /Ni functionally graded materials was examined utilizing the three point bending test and finite…
Biological materials are increasingly used in the repair of tissue defects. To reduce antigenicity, biological tissues have to be acellularized and or fixed with a crosslinking agent before implantation. In this study, an acellularization process was employed to remove the cellular components from swim bladder of fish…
This paper describes the extraction techniques for decellularising the rat dermis. The rat skin was procured after euthanizing rats. The rat skin was then first processed to remove the epithelium (de-epithelialization) by subjecting it to hypertonic solution for different time intervals. Later the de-epithelialized ti…
Transmission Raman sensitivity for a representative commercial pharmaceutical tablet was increased by a factor of 40 using optics that returned lost laser and Raman photons to the tablet surface. A new achromatic one-way mirror is introduced that uses the spatial coherence of laser light to nondestructively force lase…
Drosophila melanogaster is a powerful model organism to elucidate basic cellular mechanisms of development. Indeed, much of our understanding of genetic pathways comes from work in Drosophila. However, mutations in many critical genes cause early embryonic lethality; thus, it is difficult to study the role of proteins…
Condensation of all renewable resources based monomers 2,5-furandicarboxylic acid and glycerol in the presence of 2 mol% Sb2O3 catalyst at 210°C gives a branched polyester resin in 70% yield. This resin was characterized by elemental analysis, 1H, 13C NMR, FT-IR, and TGA-DTG.
Two new donor-acceptor polymers containing benzo[2,1-b:3,4-b':5,6-c'']trithiophene (BTT) as donor and diketopyrrolopyrrole (DPP) as acceptor are synthesized and applied in OFETs. By tuning the alkyl substituents of the polymers, a striking difference in packing order, thin-film arrangement, and charge carrier transpor…
Films subsumed with topological defects are transformed into complex, topographical surface features with light irradiation of azobenzene-functionalized liquid crystal polymer networks (azo-LCNs). Using a specially designed optical setup and photoalignment materials, azo-LCN films containing either singular or multipl…
Researchers responded to the findings of the paper entitled 'Critical Growth Temperature of Aqueous CdTe Quantum Dots (QD) is Non-negligible for their Application as Nanothermometers'. This study was motivated by earlier published article in Small entitled 'CdTe Quantum Dots as Nano-thermometers: Towards Highly Sensit…
The Brazilian beef industry generates various wastes that are underutilized and often discarded without proper treatment, thereby polluting the environment. Among these tailings are the feet of chicken. The most popular and used is the gelatin of mammals (pigs and cattle) that is subjected to greater restrictions and…
ABSTRACT Chitosan (CS) exhibits non‐toxicity, biocompatibility and antibacterial activity in the pharmaceutical field. Fragrance is obtained by blending a large number of different spices and odorous materials in a specific ratio. However, their main ingredients are labile and volatile. Most volatile fragrances are ea…
Nanoparticle (NP) exposure may induce oxidative stress through generation of reactive oxygen and nitrogen species, which can lead to cellular and tissue damage. The digestive system is one of the initial organs affected by NP exposure. Here, it is demonstrated that exposure to metal oxide NPs induces differential chan…
A 3-step glioblastoma-tropic delivery and therapy method using nanoparticle programmed self-destructive neural stem cells (NSCs) is demonstrated in vivo: 1) FDA-approved NSCs for clinical trials are loaded with pH-sensitive MSN-Dox; 2) the nanoparticle conjugates provide a delayed drug-releasing mechanism and allow fo…
A new kind of crosslinkable potato starch-based graft copolymer emulsion (PoSt-g-BMD) has been prepared using butyl acrylate (BA) and methyl methacrylate (MMA) as main monomers, and diacetone acrylamide (DAAM) as functional monomer. The keto-carbonyl group of DAAM in PoSt-g-BMD copolymer could react with adipic dihydr…
Aberrant signaling of the epidermal growth factor receptor (EGFR) is common to a variety of human cancers and is also found to be over-expressed in most cases of non-small cell lung cancer. For the development of a molecularly targeted therapy, cetuximab-conjugated nanoparticles (immunonanoparticles, INPs) are designe…
The analogy between electromagnetic waves and ballistic electrons within the Kane's model is developed and subsequently applied to a theoretical description of a quantum version of a metamaterial planar lens. Restrictions imposed on the perfect lens and the poor man's lens by available semiconductor band structures ar…
Low energy optical modes of MBE-grown In1-xGaxN thin films with different values of x are investigated using Raman spectroscopy. We also studied the influence of Raman excitation frequency using red and green lasers on scattering intensity of various Raman modes. For those In1-xGaxN alloys whose bandgap energy is clos…
We have coupled electron microscopy and energy dispersive spectroscopy experiments with \textit{ab-initio} modeling to study the solubility and diffusion of Au in Bi$_2$Te$_3$. We found that thermal annealing of Au films results in Au concentrations in Bi$_2$Te$_3$ above the previously reported solubility limit. The t…
This article aims to analyze the historical background and present situation of biosolids recycling to agricultural land in the UK. Through the analysis, the article clarifies the following points. First, the development of laws controlling to pollution has promoted the recycling of sewage sludge to agricultural land.…
Neste trabalho, o objetivo principal foi avaliar o desempenho catalítico de compostos de paládio na oxidação do glicerol e, do cloreto de cobalto na oxidação de monoterpenos (b-pineno, a-pineno e canfeno) em fase homogênea, empregando o peróxido de hidrogênio como oxidante. Os efeitos dos principais parâmetros de reaç…