Materials Literature
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In this Perspective article, the assembly of ferrocenyl dendrimers, from small to giant sizes, is shown to provide a variety of key properties resulting from multi-electron-transfer. Remarkable features are the chemical and electrochemical reversibility, fast electron-transfer to electrodes, “near” equivalence of the…
A simple strategy for the preparation of strongly fluorescent and stable DNA-Cu/Ag NCs from reduction of AgNO(3) and Cu(NO(3))(2) by NaBH(4) in the presence of DNA having a sequence 5'-CCCTTAATCCCC-3' has been demonstrated. Fluorescence, absorption, X-ray photoelectron spectroscopy (XPS), and electrospray ionization-m…
Driven by the tremendous opportunities offered by dye solar cells technology in terms of building integration, a new generation of smart multifunctional photoelectrochemical cells has the potential to attract the interest of a rapidly growing number of research institutions and industrial companies. Photovoltachromic…
Surface contamination of surface-enhanced Raman (SERS)-active metallic substrates has been a limitation to the utility of SERS as an analytical technique, potentially affecting surface coverage, spectral reproducibility, and analytical limits of detection. We have developed a simple and versatile cleaning method for S…
Pure commercial titanium is widely used because of its high corrosion resistance and lower cost compared with other titanium alloys, in particular when there is no high wear requirements. Nevertheless, the wear resistance is poor and surface damage usually occurs in areas under contact loadings. Laser cladding is a su…
AgBr microcrystals with different morphologies were synthesized by an ionic liquids (ILs)-assisted hydrothermal method. A plausible growth mechanism, and influence of ionic liquids on the morphology of AgBr, were proposed and studied systematically. The samples were characterized by scanning electronic microscopy and…
We exploited a solution-based route for preparation of Cu, Cu(2)O, Cu(3)N, and Cu(2)S nanocrystals, that is, direct thermal decomposition of copper salts (Cu(NO(3))(2), CuSO(4)) in octadecylamine (ODA) solvent, which is a novel and ingenious chemical process.
Lingzhi or Reishi medicinal mushroom, Ganoderma lucidum, has been used over the ages as highly medicinal herb in the Orient. Many useful properties of this fungus are still being studied; we report here a new facet of this "elixir of life" as a mycosource for synthesis of metal nanoparticles. Treating the extracellula…
Cooperative adsorbents, designed on the basis of molecular structural features of targeted pollutant, were made by simultaneous grafting of two different organic functional groups on mesoporous SiO2 material SBA-15 for removal of low concentration organic pollutants in water. In this study, eosin, 4-nonylphenol (4-NP)…
Silk fibroin (SF) when dissolved in highly concentrated CaCl2 solution formed a series of degraded polypeptides with a molecular mass range of 10–70 kDa. After the liquid silk, mixed mildly with L-asparaginase (ASNase), was introduced rapidly into excess acetone, the enzyme not only was not inactivated but was also we…
Patterned quantum dot (QD) nanostructures were prepared by direct electron beam lithography on QD films. Time resolved photoluminescence measurements show that the optical properties of these QDs were retained after cross-linking.
Nanosized N-doped graphene oxide (GO) with visible fluorescence in water was prepared by cutting and unzipping of N-doped carbon nanotubes (NCNTs) and used to distinguish between normal and transition metal ions. It is found that the fluorescence is bathochromically shifted as the level of oxidation is increased.
The use of copper organometallics is an established route to generate thin films of copper. This paper describes the deposition of copper and copper(I) oxide films using relatively inexpensive copper nitrate solutions in a facile aerosol assisted chemical vapour deposition process. The composition of the resultant thi…
A nonreciprocal ferrite-loaded open rectangular composite right/left-handed (CRLH) waveguide structure was introduced by the authors in 2009, and later shown to operate as a novel and useful antenna system. However, this structure suffers from the classical drawbacks of ferrites (bulkiness, heaviness, high cost, nonin…
Many biomineralization processes involve the sequestering of ions by cells and their translocation through the cells to the final deposition site. In many invertebrate crystallization pathways the cells deposit an initial highly disordered mineral phase with intracellular vesicles, and this mineral is subsequently tra…
Carbon Capture and Storage technology (CCS) has the potential to play a key role in reducing CO 2 emissions as required by international commitments. CCS must be included in the portfolio of solutions in order to reach the target of world emissions reduction by 50% in 2050. One of the most relevant European initiative…
Poly(methyl methacrylate) grafted imogolite clay nanotubes were fabricated via activators regenerated by electron transfer for atom transfer radical polymerization (ARGET ATRP) by designing a water-soluble amphiphilic ATRP initiator that can adsorb onto imogolite surface in an aqueous solution.
The science of nanotechnology (NT) has been hailed as the new industrial revolutionrepresenting a new frontier of the 21st century. Defined as the control of matter at an atomic ormolecular scale of between 1 and 100 nm, NT has been predicted to have a significant impact onsociety. While maintaining leadership in the…
Polymer nanocomposites have attracted wide interests in various industries. This new class of material is capable of providing significant improvements in combined electrical, thermal and mechanical properties. Although the potential use of polymer nanocomposites in electrical insulating industry has only recently beg…
The worldwide use of pesticides together with the possibility of chemical warfare agent's usage in military actions, terrorist attacks or in accidents, increased the risks of chemical contamination occurrence and consequently stipulated the need for the development of new protective materials and equipment with improv…