Gold nanoparticles prepared by sonochemical method in thiol-functionalized ionic liquid

Seedless synthesis of octahedral gold nanoparticles in condensed surfactant phase

“…Surprisingly, beautiful Au octahedra with very high yield were produced if a small volume of H 2 O 2 is added to the reaction. In addition to its strong oxidizing property, H 2 O 2 has been also known as a reducer of gold ions to synthesize gold nanoparticles [26][27][28][29]. However, we found that H 2 O 2 acts as an activator to prompt the reduction-oxidation reactions of AA rather than a direct reducer of HAuCl 4 .…”

Inorganic Nanomaterials Synthesis Using Ionic Liquids

“…45, 125 Further studies have then shown that many metal and metal alloy particles can be grown using a variety of reducing agents in ILs. 19 129 and Jin et al 130 have reported the synthesis of gold and platinum nanoparticles using thiol-modified ILs, where the IL stabilizes the resulting gold particles via the wellknown gold-sulfur interaction, but the stabilization of metal nanoparticles has also been achieved without the nowadays rather classical thiol/thiolate stabilization.…”

Combined bactericidal activity of silver nanoparticles and hexadecylpyridinium salicylate ionic liquid

“…In addition, the large size and the weak coordination capacity of the IL ions normally contribute to the stabilization of the metal nanoparticles by electrostatic and steric effects, without promoting the passivation of the nanomaterial surface Kim et al 2006;Itoh et al 2004;Guo et al 2007;Jin et al 2007;Chen et al 2005;Kim et al 2004;Dupont et al 2002). Recently, a new class of biologically active IL was prepared by the combination of anions, such as salicylate and acetylsalicylate with quaternary ammonium cations (Saadeh et al 2009;Choi et al 2011;HoughTroutman et al 2009;Ferraz et al 2011;Pernak et al 2003), opening the possibility of using IL in biomedical applications.…”