Atomic Force Microscopy Study of Ultrafine Particles Prepared in Reverse Micelles

Preparation of Y2O3:Eu3+ nanoparticles in reverse micellar systems and their photoluminescence properties

“…The particle size distribution was estimated from all protrusions greater than 1 nm in height. As described in the previous reports [23,24], for an accurate estimation of particle size distribution by AFM, the spacing of the particles must be much larger than this value, and this seems to be satisfied in the present case, by employing an appropriate dilution of the m-cresol solution containing the Y-Eu hydroxide nanoparticles. Almost same size distribution was obtained for the Y 2 O 3 :Eu 3+ nanoparticles prepared using two reverse micellar systems, and the mean particle sizes thus calculated were 4.4 and 4.6 nm for the AOT/isooctane and NP-5/cyclohexane systems, respectively.…”

Sample preparation for the quick sizing of metal nanoparticles by atomic force microscopy

“…The negative surface charge makes the immobilization of the nanoparticles unfavorable, as these often have negatively charged surfaces as well. Such surface derivatization are usually obtained through silane treatment of mica or glass (Crampton et al, 2005;Sato et al, 2000), or via the use of oligo-or polycations (such as spermine or polylysine) (Podesta et al, 2004;Vesenka et al, 1993). These treatments can often lead to inhomogeneous surfaces that are also significantly rougher than the starting substrate.…”

Preparation and characterisation of gelatin–gum arabic aldehyde nanogels via inverse miniemulsion technique

“…One of the highly explored, such method is water-in-oil (w/o) mimiemulsion and it was used to prepare semiconductors [43], polymeric nanoparticles [44], drug nanocrystals [45] and magnetic particles [46]. The ease with which miniemulsion can be prepared makes it a favourable method for developing nanoparticles.…”