Tuning Deposition of Magnetic Metallic Nanoparticles from Periodic Pattern to Thin Film Entrainment by Dip Coating Method

Abstract

In this work, we report on the self-assembly of bimetallic CoFe carbide magnetic nanoparticles (MNPs) stabilized by a mixture of long chain surfactants. A dedicated setup, coupling dip coating and sputtering chamber, enables control of the self-assembly of MNPs from regular stripe to continuous thin films under inert atmosphere. The effects of experimental parameters, MNP concentration, withdrawal speed, amount, and nature of surfactants, as well as the surface state of the substrates are discussed. Magnetic measurements revealed that the assembled particles were not oxidized, confirming the high potentiality of our approach for the controlled deposition of highly sensitive MNPs.

Macroscopic and Microscopic Analyses of Hydrophobic Modification of Rubbers with Silica Nanoparticles

“…10,11 As a consequence, the surface-modified particles are covalently bound to the grafted polymer matrix through the dip-coating technique. 12,13 Graft copolymers provide new opportunities to control polymer composition and architecture, thus opening possibilities for new coating technology. However, the plasma treatment creates high surface roughness by introducing pores, special patterns, or texture, which could inappropriately influence the boundary properties of coating.…”

“…To improve the durability, a simple strategy is to the incorporate nanoparticles into polymeric films. − In this strategy, however, large amounts of particles are encased in the membrane bulk material, which limits the amount of particles on the membrane surface and decreases the modification efficiency. Another way is surface functionalization of polymer matrix by plasma-induced graft copolymerization to provide sufficient carboxyl groups as anchor sites for particle binding. , As a consequence, the surface-modified particles are covalently bound to the grafted polymer matrix through the dip-coating technique. , Graft copolymers provide new opportunities to control polymer composition and architecture, thus opening possibilities for new coating technology. However, the plasma treatment creates high surface roughness by introducing pores, special patterns, or texture, which could inappropriately influence the boundary properties of coating.…”

Nanopatterning of Magnetic CrNi Prussian Blue Nanoparticles Using a Bacterial S-Layer as a Biotemplate

“…1,2 However, other kinds of magnetic nanoparticles, like those of molecule-based magnets, have also been deposited onto different substrates. 3−7 The family of Mn 12 clusters and Prussian blue derivatives are two genuine examples.…”

“…In this field, the most common magnetic nanoparticles checked consist of ferromagnetic zerovalent metal nanoparticles. , However, other kinds of magnetic nanoparticles, like those of molecule-based magnets, have also been deposited onto different substrates. − The family of Mn 12 clusters and Prussian blue derivatives are two genuine examples. In particular, the interest in magnetic Prussian blue nanoparticles lies in the extraordinary variety of their additional physical properties (electrochromism, photomagnetism, piezomagnetism, etc.…”

“…In this field, the most common magnetic nanoparticles checked consist of ferromagnetic zerovalent metal nanoparticles. 1,2 However, other kinds of magnetic nanoparticles, like those of molecule-based magnets, have also been deposited onto different substrates. 3−7 The family of Mn 12 clusters and Prussian blue derivatives are two genuine examples.…”