نتایج جستجو برای: micrometric particles
تعداد نتایج: 156828 فیلتر نتایج به سال:
We investigated the organization of micrometric hydrophilic beads (glass or basalt) immersed in Leidenfrost drops. Starting from a large volume of water compared to the volume of the beads, while the liquid evaporates, we observed that the grains are eventually trapped at the interface of the droplet and accumulate. At a moment, the grains entirely cover the droplet. We measured the surface are...
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The thickness of eosinophilic band in collagenous colitis (CC) was assessed by 3 methods: histologic estimates (22 observers), conventional measurements using a calibrated micrometric scale (1 observer), and semiautomatic micrometric measurements (1 observer). By the histologic estimate technique, 7.4% of the results failed to diagnose CC; by calibrated micrometry, the failure was 6% and by sem...
• The synthesis of GdVO 4 :Nd nanoparticles is performed using wet chemical methods, and compared to micron-size particles. Luminescence decay times are sufficiently long allow time-gated in vivo bio-imaging, avoiding tissue autofluorescence. Nd-doped uniquely suited for deep-tissue imaging. (GdVO :Nd) represents a promising candidate among near-infrared emitting (NPs) bioimaging owing its non-...
Original and effective syntheses of crystalline silver wires and saw bundles, using reduced Keggin polyoxomolybdovanadate (POM) as mediator and reducing agent, were performed in acetonitrile at room temperature; several parameters influencing the final silver 1D-structures, with micrometric length and nanometric thickness, were varied: the nature of the POM, silver salts, vanadium(iv) source an...
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