Olivier Micheau, in Nanocarriers for Drug Delivery, 2019 2.4.1 Size Their nanoscale size makes CNTs, a priori, efficient drug-delivery devices. However, it should be kept in mind that size compatibility with the biological medium is as essential as the various steps of delivery, i.e., drug...
This study evaluates the finite size effect on the oxygen adsorption energy of coinage metal (Cu, Ag and Au) cuboctahedral nanoparticles in the size range of 13 to 1415 atoms (0.7-3.5nm in diameter). Trends in particle size effects are well described with single point calculations, in which...
29), DBA Hl on the thread shifted downfield (ΔδHl = 0.51 p.p.m.) and splited to a triplet because of the formation of hydrogen bonding with the oxygen atom on DB24C8. The aromatic protons Hk and Hj experienced an upfield shift with Δδ of −0.31 and −0.10 p.p...
The particle areal density is controlled by tailoring the number of ALD cycles using trimethyl(methylcyclopentadienyl)platinum and oxygen, while subsequent growth using the same Pt precursor in combination with nitrogen plasma allows for tuning of the particle size at the atomic level. The excellent ...
The relative transmissions of helium dimer and helium atom beams through a set of nanoscale sieves were measured as a function of hole size in the range from 98-410 nm. From the relative transmission coefficients, the mean internuclear distance of helium dimer was determined to be (r) = 62...
For 30 nm sample, the remnant magnetization and the EB field are 0.086 emu/g and 310 Oe, respectively. On the other hand, the dielectric constants decrease with the decreasing of grain size. Among all the samples, 150 nm samples show the largest dielectric constant about 6 × 103. 展开...
[15] synthesized ZIF particles with various sizes by changing the solvent volume and then investigated Fe-ZIF-derived (ZIF-precursor pyrolyzed at 1000 °C) to catalyze the oxygen reduction reaction. The results showed that ZIFs with a size of 50 nm exhibited a single-atom structure and the...
Because of the interest in the properties of the oxygen—donor inacrocycles, we have taken aspecial interest in oxygen as a donor atom. This has involved open—chain ligands containingoxygen—donors (ref. 7,8), niacrocycles containing pendent oxygen—donor groups (ref. 8,9), andmacrocycles...
size and polydispersity of the prepared colloids on the Tween 80 concentration reflects the mode of interaction of Tween 80 with gold species present in the solution, with dominant ion-dipole interaction and strong coordination interaction of gold with hydroxyl groups and oxygens of Tween 8053,54....
Sébastien Linas1,†, Fabien Jean2, Tao Zhou3, Clément Albin1, Gilles Renaud3, Laurent Bardotti1 & Florent Tournus1 Two-dimensional hexagonal arrays of Pt nanoparticles (1.5 nm diameter) have been obtained by deposition of preformed and size selected Pt nanoparticles on ...