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。
To disentangle the contribution of ionic and nanoparticulate Ag to the overall toxicity to the earthworm Eisenia fetida, a semi-permeable membrane strategy was used to separate Ag(+) released from silver nanoparticles (AgNPs) in an aqueous exposure. Internal Ag fractionation, activities of antioxidant enzymes and meta…
Recently, there has been increased interest in electrospun-titanium dioxide nanofibers (TiO2 NFs) as antibacterial agents owing to their advantages, such as simple and cost-effective fabrication processes, and high surface areas. However, the photocatalytic effects of TiO2 NFs are relatively low because of their low-o…
Fluorescent carbonaceous nanodots (CDs) have attracted much attention due to their unique properties. However, their application in noninvasive imaging of diseased tissues was restricted by the short excitation/emission wavelengths and the low diseased tissue accumulation efficiency. In this study, CDs were prepared f…
The properties of helium bubbles in a body-centred cubic (bcc) Fe lattice have been examined. The atomic configurations and formation energies of different He–vacancy complexes were determined. The 0 K results show that the most energetically favourable He to Fe vacancy ratio increases from about 1:1 for approximately…
In this content, a small molecular ligand of prostate specific membrane antigen (SMLP) conjugated poly (caprolactone) (PCL)-b-poly (ethylene glycol) (PEG) copolymers with different block lengths were synthesized to construct a satisfactory drug delivery system. Four different docetaxel-loaded polymeric micelles (DTX-P…
An effective theranostic platform based on porous silica nanoparticles encapsulated with the complex of a photodynamic anticancer drug and graphene quantum dots (GQDs), with the bifunction of multicolor imaging and satisfactory photo-induced anticancer activity, was successfully designed and prepared for in vitro phot…
The microscopic mechanism for polarization fatigue in ferroelectric oxides has remained an open issue for several decades in the condensed matter physics community. Even though numerous models are proposed, a consensus has yet to be reached. Since polarization reversal is realized through ferroelectric domains, their…
Edge states are an important ingredient in understanding transport properties of graphene nanoribbons. We study experimentally the existence and the internal structure of edge states under uniaxial strain of the three main edges: zigzag, bearded, and armchair. The experiments are performed on artificial microwave grap…
We develop a nonlocal theory for heat conduction under high-frequency temperature fields and apply the theory to explain reductions of the apparent thermal conductivity observed in recent experiments. Our nonlocal theory is an analytical solution of the Boltzmann transport equation for phonons in a semi-infinite solid…
The very promising results of Na-trans-[RuCl4(1H-indazole)2] (NKP-1339) in clinical studies have fuelled renewed interest in the research and development of ruthenium(III) coordination compounds for cancer therapy. By applying an improved synthetic approach to this class of coordination compounds, six new examples of…
We investigated the influence of nanoscale pattern shapes, contours, and surface chemistry on wetting behavior using a combination of experimental and modeling approaches. Among the investigated topographical shapes, re-entrant geometries showed superior performance owing to their ability to restrain the liquid-air in…
Graphene adheres very strongly to solids and is impermeable to many gases, which allows the formation of suspended graphene blisters of controllable shape. The authors use micro-Raman spectroscopy to perform contactless measurement of the topography and stress/strain parameters of these blisters. This unique ``all-opt…
Narrow metallocene-made random ethylene copolymers display a strong memory effect of crystallization above their equilibrium melting point akin to the melt memory effect observed in model ethylene–1-butene copolymers. The onset temperature for self-nucleation or surviving self-seeds displays a bell shape with increasi…
A novel and interesting enzyme-mimicking activity of chitosan-functionalized graphene oxide (CS-GO) upon phototriggering was demonstrated. CS-GO could catalyze oxidation of a typical chromogenic substrate (3,3′,5,5′-tetramethylbenzidine, TMB) under visible light (λ ≥ 400 nm) stimulation, which was independent of destr…
Redox-responsive degradable honeycomb manganese oxide (hMnO2) nanostructures consisting of some lamellar MnO2 platelets were established as a new class of drug carriers for intracellular glutathione-triggered drug release.
There is a need to develop economical, efficient and widely available therapeutic approaches to enhance the rate of skin wound healing. The optimal outcome of wound healing is restoration to the pre-wound quality of health. In this study we investigate the cellular response to biological stimuli using functionalized n…
Noble-metal-free NiFeMo has been applied as an efficient catalyst for the rapid and complete decomposition of hydrous hydrazine for hydrogen generation.
Graphene known for its superb physical properties, such as high transparency and thermal conductivity, is proposed as a solution to the problem of thermal management of the electronic devices, requiring transparency and cooling. It is shown that graphene heat spreader layer drives the heat out of the device more effic…
Magnesium nanoparticles as small as 7 nm have been synthesized by reducing di- n -buytlmagnesium with lithium and individually coated with elements including Co, Fe, Ni, Si, or Ti for further tuning of their thermodynamic and kinetic properties. Coating was achieved via a transmetalation process whereby precursors wer…
The authors introduce a novel multilayer core/shell design to broadly upconvert infrared (IR) light at many discrete wavelengths into visible or near‐IR (NIR) emissions. It utilizes hexagonal‐phase core/multishell NaYF 4 :10%Er 3+ @NaYF 4 @NaYF 4 :10%Ho 3+ @NaYF 4 @NaYF 4 :1%Tm 3+ @NaYF 4 nanoparticles, where the acti…