Materials Literature
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The use of dendritic structures for the grafting of core-shell γ-Fe(2)O(3)/polymer 300 nm superparamagnetic nanoparticles (MNPs) has been performed with four metallodendrons that were functionalized with diphosphinopalladium complexes. The catalytic performance of these nanocatalysts was optimized for the Suzuki C-C c…
The physical origin of graphene oxide nanosheet (GONS)-driven polymer crystallization was studied from the perspective of intrachain conformational ordering. Time-resolved Fourier-transform infrared spectroscopy indicated that both conformational ordering and crystallization of isotactic polypropylene (iPP) were obvio…
Abstract This review will focus on the recent advances on nanofibrous membranes (NFM) prepared by electrospinning (ES) applied to modify electrochemical sensors and biosensors. Most relevant applications of NFM include their used as selective barrier toward diffusion, protective coatings against fouling, conductive su…
Based on nonequilibrium Green’s functions in combination with density-function theory, the transport properties of trigonal graphenes, with the vertex carbon atom substituted by one phosphorus or boron atom and bounded through a B-N pair, coupled to gold electrodes are investigated. The rectification behavior can be o…
In this paper we put on solid ground the optical time-resolved study of spin-state photoinduced switching in an Fe(III) compound whose structural dynamics have been recently unveiled. We provide the experimental evidence of complex dynamics, occurring in succession, and spanning ten decades in time. We show that in ad…
NiFe 2 O 4 nanoparticles were synthesized via solid‐state reaction. The effects of the reaction parameters, namely dispersant content, calcination temperature and annealing time on particle size and morphology were investigated. Magnetic properties of NiFe 2 O 4 nanoparticles were tested. The formation mechanism of na…
Abstract BACKGROUND: Poly(3‐hydroxybutyrate‐ co ‐3‐hydroxyvalerate) [P(3HB‐ co ‐3HV)] co‐polymer has immense potential in the field of environmental and biomedical sciences as biodegradable and biocompatible material. The present study examines a filamentous N 2 ‐fixing cyanobacterium, Nostoc muscorum Agardh as a pote…
Meet me at the symmetry gates: A supramolecular approach using chlorides as structure-directing ligands gives high-nuclearity, mixed-valent Mn coordination clusters with {MnIIMnIII12}, {MnII3MnIII10}, and {MnII3MnIII11} core structures that have supramolecular chirality. The {MnIIMnIII12} complex (see structure: Mn bl…
Colloidal synthetic approaches to discrete, soluble plasmonic architectures, such as nanorod pairs, offer numerous advantages relative to lithographic techniques, including compositionally asymmetric structures, atomically smooth surfaces, and continuous fabrication. Density-driven colloidal assembly, such as by solve…
Employing first-principles electronic structure calculations, the electronic and magnetic properties of La2NiMnO6 and La2CoMnO6 with Ni/Mn and Co/Mn ordering in (001), (110), and (111) directions are investigated. The ground states of La2NiMnO6 and La2CoMnO6 are ferromagnetic semiconducting with alternative Ni/Mn and…
The behaviour of two-dimensional patchy particles with five and seven regularly arranged patches is investigated by computer simulation. For higher pressures and wider patch widths, hexagonal crystals have the lowest enthalpy, whereas at lower pressures and for narrower patches, lower density crystals with five neares…
Organic photonic heterostructures are constructed through a template-free self-assembly method. The host-guest intermolecular interactions play an essential role in the formation of various block orange-blue-orange and blue/green microtubes. The spatial distribution of excitons is engineered to investigate the exciton…
A renewable carbonization agent based compound nickel chitosan phosphate (NiPCS) has been prepared, which was the combination of flame retardant and synergist. Its effect on thermal properties and flammability of poly(vinyl alcohol) (PVA) has been investigated. Microscale combustion calorimetry (MCC) test proved that…
Doping with Dy/Tb is a current solution to improve the coercivity and the operating temperature of NdFeB magnets, by increasing the magnetocrystalline anisotropy of the (Nd, Dy/Tb)2Fe14B (2:14:1) phase. The efficiency of Dy/Tb doping depends on the distribution of Dy/Tb in the multi-phase microstructure of the NdFeB m…
Studying the correlation between the molecular structures of SERS-active analytes and their SERS enhancement factors is important to our fundamental understanding of SERS chemical enhancement. Using a common internal reference method, we quantitatively compared the Raman activities, SERS activities, and SERS enhanceme…
BACKGROUND: For metabolic engineering, many rate-limiting steps may exist in the pathways of accumulating the target metabolites. Increasing copy number of the desired genes in these pathways is a general method to solve the problem, for example, the employment of the multi-copy plasmid-based expression system. Howeve…
The concept of octupolar molecules has considerably enlarged the engineering of second-order nonlinear optical materials by giving access to 2D and 3D architectures. However, if the archetype of octupolar symmetry is a cube with alternating donor and acceptor groups at the corners, no translation of this ideal structu…
The main properties that make carbon nanotubes (CNTs) a promising technology for many future applications are: extremely high strength, low mass density, linear elastic behavior, almost perfect geometrical structure, and nanometer scale structure. Also, CNTs can conduct electricity better than copper and transmit heat…
A pentanuclear dysprosium cluster, [Dy(5)(μ(3)-OH)(6)(Acc)(6)(H(2)O)(10)]·Cl(9)·24H(2)O (1), has been synthesized through the reaction of 1-amino-cyclohexanel-carboxylic acid (Acc) and DyCl(3)·5H(2)O. Crystal structural analysis reveals that the metal core of cluster 1 shows an unprecedented trigonal bipyramidal (TBP)…
We propose a method by which the thermal conductivity of a nanostructure with arbitrary geometry can be predicted through Monte Carlo sampling of the free paths associated with phonon-phonon and phonon-boundary scattering. The required inputs are the nanostructure geometry and the bulk phonon frequencies, group veloci…