Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
The building blocks {Co(6)PW(9)} converging lacunary polyoxometalates and high-nuclear {Co(6)} clusters are further linked by semi-rigid bis(triazole) ligands to construct a 2D → 3D framework under hydrothermal conditions, [Co(6)(μ(3)-OH)(3)(H(2)O)(9)L(PW(9)O(34))] (1) (L = 4,4'-bis(1,2,4-triazol-1-ylmethyl)biphenyl).
The absorption spectra for a gold nanocube and for a gold nanobar are calculated by using the Discrete Dipole Approximation (DDA). The results show the excitation of a single albeit broad surface plasmon (SP) band of the gold nanocube. The extinction cross section of the gold nanocube is dominated by the absorption cr…
The gallic acid-loaded electrospun cellulose acetate fibers were successfully prepared. The fiber containing 2.5% gallic acid was smooth surface but observed drug flake on the surface of the fiber when increasing drug content. The thermal properties, mechanical properties and drug release behavior of the fibers were i…
Recently, much attention has been given to diamond-like carbon (DLC) as a solid-state lubricant, because it exhibits high resistance to wear, low friction and low abrasion. Experimentally it is reported that gas environments are very important for improving the tribological characteristics of DLC films. Recently one o…
By several synthetic pathways, we designed and synthesized a new series of unsymmetrical substituted 7-amino coumarin-based phototriggers with various nano/bio-conjugated bonds. The photophysical properties of most of the substituted coumarin-based phototriggers, except for compound P9 with maleimide group, showed no…
LaCO3OH:Ln3+ (Ln = Yb, Er, Tm) submicro/microcrystals with a variety of novel and well-defined morphologies including triagonal or truncated triagonal-prism/plate, hexagonal prism, pine nut and sphere have been synthesized via a facile hydrothermal route. A series of controlled experiments indicate that the inherent c…
In addition to the generally observed LIESST phenomenon, polymorph D of trans-[Fe(II)(abpt)(2)(NCS)(2)] exhibits a long-lived photo-induced metastable state through linkage isomerization accompanied with a spin crossover transition, which is stable up to 108 K.
A new approach for the visual detection of glucose based on a H(2)O(2) triggered sol-gel transition in combination with modified gold nanoparticles is reported.
Owing to the wide-ranging applications of noble metal nanoparticles in diverse areas of science and technology, different methods have been proposed for their synthesis. Here, we describe the methods for the intracellular biosynthesis of silver and gold nanoparticles using the bacterium Bacillus licheniformis KK2 and…
Preface Electrodialytic Optimization & Rationalization of Chitosan Transformation in Bioactive Oligomers Chitosan & Chitosan Derivatives: A Spotlight on Cellular Interactions Chitosan & derivatives-- behavior in dispersed state & applications Chitosan as a Binding Agent for Modification of Endotoxin Biological Activit…
We demonstrate a nonlinear metamaterial that can be switched between low and high transmission by controlling the power level of the incident beam. The origin of this nonlinear response is the superconducting Nb thin film employed in the metamaterial structure. We show that with moderate RF power of about 22 dBm it is…
Graphene, due to its exceptional properties, is a promising material for nanotechnology applications. In this context, the ability to tune the properties of graphene-based materials and devices with the incorporation of defects and impurities can be of extraordinary importance. Here, we investigate the effect of uniax…
Nonlinear optics is given increasing attention due to its wide application in the area of laser technology, optical communication and data storage technology .The growth of activities on NLO properties of nanomaterials, proposed by the agitation of understanding new science and potential hope for applications in daily…
Undoped and Mn-doped (1−x)BaTiO3–xBi(Ni1/2Ti1/2)O3 (x = 0.03–0.7) ceramics were synthesized by a conventional solid state route. X-ray diffraction patterns revealed that the crystal structure was a tetragonal perovskite at x = 0.03, a pseudo-cubic perovskite at x = 0.1 and 0.3, and mixed phases at x = 0.5–0.7. The die…
The eco-friendly synthesis of nanoparticles through various biological means helps us to explore various seaweeds for their ability to synthesize silver nanoparticles (AgNPs). It was found that aqueous silver ions when exposed to aqueous extract of Gelidiella sp. are reduced in solution, thereby leading to the formati…
Self-assembly of small molecules or macromolecules through non-covalent or covalent bonds to build up supramolecular nanostructures is a prevalent and important process in nature. While most chemists use small molecules to assemble nanostructures with physical or chemical perturbations, nature adopts enzymes to cataly…
In this paper we rigorously derive a line-tension model for plasticity as the $\Gamma$-limit of a nonlinear mesoscopic dislocation energy, without resorting to the introduction of an ad hoc cut-off radius. The $\Gamma$-limit we obtain as the length of the Burgers vector tends to zero has the same form as the $\Gamma$-…
Four rigid rod-like molecules comprised of a Ru(bpy)(3)(2+) (bpy = 2,2'-bipyridine) photosensitizer, a 9,10-anthraquinone electron acceptor, and a molecular bridge connecting the two redox partners were synthesized and investigated by optical spectroscopic and electrochemical means. An attempt was made to assess the r…
The efficient photoinduced electron transfer from a stilbene derivative incarcerated within a negatively charged organic nanocapsule to positively charged acceptors (methyl viologen and a pyridinium salt) adsorbed outside and the back electron transfer were controlled by supramolecular effects.
A novel tri-nitroDOPA terminated polymer based ligand has been developed for the stabilization of magnetite nanoparticles. The synthesis involves a process in which ethylene oxide is polymerized using a trivinyl initiator, modified with carboxylic acid using a free radical addition of mercaptoundecanoic acid, and then…