Gold nanoparticles supported on halloysite nanotubes (Au/HNTs) were prepared by a homogeneous deposition-precipitation method. The specific characteristics of the catalyst were characterized in detail, in relation to their performance for solvent-free oxidation of benzyl alcohol. The particular structure of the catalyst resulted in high catalytic activity and stability compared with other suppo...

Halloysite nanotubes (HNTs) were loaded with lsozyme, as antimicrobial molecule, at a HNTs/lysozyme ratio of 1:1. Such a nano-hybrid was incorporated into a poly (ε-caprolactone) (PCL) matrix at 10 wt % and films were obtained. The nano-composites were submitted to a cold drawn process at three different draw ratios, λ = 3, 4, and 5, where λ is l(final length)/l0(initial length). Morphology, ph...

In this review, the most recent advances (2014-2016) on the synthesis of new polymer-supported catalysts are reported, focusing the attention on the synthetic strategies developed for their preparation. The polymer-supported catalysts examined will be organic-based polymers and organic-inorganic hybrids and will include, among others, polystyrenes, poly-ionic liquids, chiral ionic polymers, den...

Nanotubes (NTs), nanometer-scale hollow cylinders, are emerging as promising drug vehicles offering many advantages over spherical particles. This paper briefly highlights the recent performance of NTs in drug delivery. This discussion is by no means intended to be complete, an attempt is made to provide some illustrative examples on the basis and application of the NT delivery systems. The NT ...

Clay-Based Robust Hemostats In article 2202265 by Mingxian Liu, Yuri Lvov, and co-workers, an efficient clay hemostat of halloysite nanotubes is tightly assembled onto cotton fibers capillaries mediated a biopolymer alginate with Ca2+ crosslinking. This dressing maintains high clotting activity after washing only few residuals in the wound. strategy balances robustness, biosafety, effectiveness...

Halloysite is a common pedogenic clay mineral, often found in young soils developed on volcanic deposits (Dixon, 1989). It is a member of the kaolin group of clays with the same ideal stoichiometric composition as kaolinite [A12Si2Os(OH)4 ]. Halloysite, however, often contains water of hydrat ion (i.e., A12Si2Os(OH)4.nH20), and is commonly found with a tubular morphology. This "rol l ing" of ha...