Materials Literature
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A novel thiazolidine-2-thione functionalized chain transfer agent (CTA) was synthesized and used as a reversible addition-fragmentation chain transfer (RAFT) polymerization agent to prepare well-defined poly-N-(2-hydroxypropyl) methacrylamide (PHPMA). The polymer chains had pre-designed molecular weights, narrow polyd…
BACKGROUND: There is a need to better understand synergism in the biological effects of particles composed of multiple substances. The objective of this study was to determine if the oxidative stress in cultured cells caused by co-exposure to carbon black and Fe2O3 nanoparticles was significantly greater than the addi…
Two novel sodium salts of the antibiotic ciprofloxacin were crystallised at pressures of 0.25 and 0.6 GPa and subsequently recovered to ambient pressure. The structures are the first reported examples of ciprofloxacin chelating a Group IA monovalent cation. Ambient-pressure crystallisation of the same solution used fo…
The synthesis of polyHIPEs with bimodal pore-size distribution and very high specific surface areas up to 1210 m2 g−1 is reported. Monolithic polyHIPE precursors were swollen, and subsequently the polymeric network was crosslinked in the expanded state by internal and external electrophiles under catalysis of a Lewis…
A multi-porphyrin cluster has been covalently attached to a polyoxometallate (POM) catalyst so as to form an advanced model for the photosynthetic reaction complex. This bio-inspired mimic displays efficient energy transfer from the peripheral zinc porphyrins (ZnP) to the central free-base porphyrin (FbP). The latter…
We review the recent advances in large-scale and coarse-grained molecular dynamics applied to clay minerals. Recent advances in local and distributed high performance computational resources together with the development of efficient parallelized algorithms has enabled the simulation of increasingly realistic large-sc…
9 February 2009 Zinc oxide nanoparticles (ZnO NPs) were synthesized by simple and efficient method in aqueous media from zinc nitrate without any requirement of calcinations step at high temperature. The ZnO NPs are studied by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Then, a hybri…
CeO2 has been prepared from an acetate precursor by an antisolvent precipitation technique using supercritical CO2. The supercritically synthesized ceria support was used to prepare Au–Pd based catalysts for the selective oxidation of alcohols in solvent-free conditions using molecular oxygen as oxidant. The supercrit…
Anode-supported solid oxide fuel cells with yttria-stabilized zirconia (YSZ) electrolytes, both commercial and research, are used at as solid oxide electrolyzer cells (SOECs). When the operation is extended to current densities corresponding to a steam-conversion rate above 100%, or when the steam supply is interrupte…
A novel multiresponsive function of monoclinic BiVO(4) has been put forward for the first time, and loosely packed monoclinic BiVO(4) nanoellipsoids with many exposed crystal planes have been designed and synthesized in order to improve their smart multiresponses to visible light, trace gas and temperature.
Replacing skin defects has witnessed several developments over the centuries. It started with the introduction of skin grafting by Reverdin in 1871. Since then, varieties of skin grafting techniques have been used successfully. Despite being clinically useful, skin grafts have many limitations including the availabili…
Gold nanorods, which have a strong surface plasmon band at the near-infrared region, absorb light energy which is then converted to heat. Since near-infrared light can penetrate deeply into tissue, gold nanorods are expected to be useful as photosensitizers for photothermal therapy. In this study, the length of the po…
The structure of the coprecipitated precursor to the positive electrode material, Li [ Ni 1 ∕ 3 Mn 1 ∕ 3 Co 1 ∕ 3 ] O 2 (NMC), is typically synthesized via a coprecipitation reaction and assumed to be Ni 1 ∕ 3 Mn 1 ∕ 3 Co 1 ∕ 3 ( O H ) 2 or Ni 1 ∕ 3 Mn 1 ∕ 3 Co 1 ∕ 3 O O H . The coprecipitation reaction and its produc…
Alumina/graphene composite powders were produced by ball milling alumina and graphite for different times. Transmission electron microscopy (TEM) was used to characterize the obtained powders. 3–4 nm graphene sheets were produced after 30 h milling time. Accelerative effect of alumina to ball milling was also studied.…
Due to their complexity and diversity, understanding the structure of textile fibres is of key importance. This authoritative two-volume collection provides a comprehensive review of the structure of an extensive range of textile fibres. Volume 2 begins by reviewing natural fibres such as cellulosic, cotton, protein,…
We use density functional theory calculations with Hubbard corrections (DFT+U) to investigate electronic aspects of the interaction between ceria surfaces and gold atoms. Our results show that Au adatoms at the (111) surface of ceria can adopt Au(0), Au(+) or Au(-) electronic configurations depending on the adsorption…
Mesoporous materials with controlled composition and pore characteristics have been extensively investigated during recent decades. The design, synthesis and assembly of building blocks with suitable shapes, length scales and functionalities have led to advances in the control of pore structure and morphology, the tai…
Herein we demonstrate the photothermally-triggered self-assembly of poly(N-isopropylacrylamide)-functionalized gold nanorods in one-dimensional structures.
Dendrimers are a class of highly branched synthetic polymers that form spherical macromolecules that can be reliably synthesized to a specific physical size in a highly reproducible manner. Dendrimers of different generations are chemically related to each other, allowing the study of molecular size without the interf…
The grafting of pegylated dendrons on 9(2) nm and 39(5) nm iron oxide nanoparticles in water, through a phosphonate group as coupling agent has been successfully achieved and its mechanism investigated, with a view to produce biocompatible magnetic nano-objects for biomedical applications. Grafting has been demonstrat…