نتایج جستجو برای: ni nanocluster
تعداد نتایج: 53343 فیلتر نتایج به سال:
Plasmonic nanoclusters, an ordered assembly of coupled metallic nanoparticles, support unique spectral features known as Fano resonances due to the coupling between their subradiant and superradiant plasmon modes. Within the Fano resonance, absorption is significantly enhanced, giving rise to highly localized, intense near fields with the potential to enhance nonlinear optical processes. Here, ...
The structure effect is widely present in the catalysis of alloy systems. However, the surface structure of this system is still ambiguous because of the limitations of the current surface characterization tools. We reported the x-ray crystallographic structure of the first and the largest AgAu alloy nanocluster with a doping shell formulated as [Ag46Au24(SR)32](BPh4)2. This nanocluster consist...
Organic ligand-protected metal nanoclusters have attracted extensively attention owing to their atomically precise composition, determined atom-packing structure and the fascinating properties and promising applications. To date, most research has been focused on thiol-stabilized gold and silver nanoclusters and their single crystal structures. Here the single crystal copper nanocluster species...
Stem-cell-based therapies have attracted considerable interest in regenerative medicine and oncological research. However, a major limitation of systemic delivery of stem cells is the low homing efficiency to the target site. Here, we report a serendipitous finding that various iron-based magnetic nanoparticles (MNPs) actively augment chemokine receptor CXCR4 expression of bone-marrow-derived m...
By fluorescence enhancement of a proximity-dependent DNA-scaffolded silver nanocluster probe pair and exonuclease III-mediated signal amplification, we present a new fluorescence turn-on mode and its application for specific DNA detection.
A density tunable dendrimeric array was designed for assembly of a gold nanocluster probe, which was unloaded by its chemoselective recognition to cell surface sialic acid for in situ tracing of sialic acid density.
The synthesis and characterisation of a hybrid supertetrahedral nanocluster, [Ga10S16(NC7H9)(4)](2-), in which the terminal S(2-) anions have been replaced by covalently bonded amine molecules, is described.
Signal transduction is regulated by the lateral segregation of proteins into nanodomains on the plasma membrane. However, the molecular mechanisms that regulate the lateral segregation of cell surface receptors, such as receptor tyrosine kinases, upon ligand binding are unresolved. Here we used high-resolution spatial mapping to investigate the plasma membrane nanoscale organization of the epid...
We present the analysis of stability (TiO2)n nanoclusters, where n = 2–4, supported on Fe3O3-hematite (100) surface. The is focused size and geometry nanocluster, which defines contact with supporting hematite aim work to explore role interaction within nanocluster as well between surface in structure composite system. have used an in-house developed variant solids docking procedure determine m...
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