The most efficient and cost effective methods for fabrication and characterization of metal nanoparticles involves colloidal chemistry, from which it has been inferred that the shape, size, size distribution, and stability of nanoparticles depends on specific preparation methods, especially on the reducing agents used. Chemical methods use the salt of the metal, a reducing and a protective agen...

The purpose of this investigation was to explore the potentiality of a novel animal model to be used for the in vivo evaluation of the ability of a drug delivery system to promote the passage through the blood-brain barrier (BBB) and/or to improve the brain localization of a bioactive compound. A Tween 80-coated poly-L-lactid acid nanoparticles was used as a model of colloidal drug delivery sys...

The ability of seven species of aquatic plants (Elodea canadensis, Najas guadelupensis, Vallisneria spiralis L., Riccia fluitans L., Limnobium laevigatum, Pistia stratiotes L., and Salvinia natans L.) to absorb metal nanoparticles from colloidal solutions was studied. It was established that investigated aquatic plants have a high capacity for removal of metal nanoparticles from aqueous solutio...

Driven by the search for new materials with interesting and unique properties and also by the fundamental question of how atomic and molecular physical behaviour develops with increasing size, the ® eld of nanoparticle research has grown immensely in the last two decades. Partially for these reasons, colloidal solutionsof metallic (especially silver and gold) nanoparticles have long fascinated ...

We present a simple technique to switch off the tack adhesion in selected areas of a colloidal nanocomposite adhesive. It is made from a blend of soft colloidal polymer particles and hard copolymer nanoparticles. In regions that are exposed to IR radiation, the nanoparticles sinter together to form a percolating skeleton, which hardens and stiffens the adhesive. The tack adhesion is lost locall...

Colloidal drug delivery systems have been extensively investigated as drug carriers for the application of different drugs via different routes of administration. Systems, such as solid lipid nanoparticles, polymeric nanoparticles and liposomes, have been investigated for a long time for the treatment of various lung diseases. The pulmonary route, owing to a noninvasive method of drug administr...