Metallosurfactant aggregates: Structures, properties, and potentials for multifarious applications

Transition Metal-Based Dimeric Metallosurfactants: From Organic–Inorganic Hybrid Structures and Low-Dimensional Magnets to Metallomicelles

“…Observed changes in micelles’ shape and size in the investigated systems, at very low concentrations, can offer more advantages in enhancing fluid properties compared to the metal-free dimeric precursor. In addition, contrary to metal-free aggregates, metallomicelles can be used as controllable size nanotemplates in the synthesis of metallic nanoparticles. , Therefore, they represent a good alternative to existing methodologies for nanoparticle synthesis, which suffer from several drawbacks including nanoparticle agglomeration, high fabrication costs, safety concerns due to the use of toxic solvents, poor yields, and nonuniform particle sizes …”

“… 27 , 59 Therefore, they represent a good alternative to existing methodologies for nanoparticle synthesis, which suffer from several drawbacks including nanoparticle agglomeration, high fabrication costs, safety concerns due to the use of toxic solvents, poor yields, and nonuniform particle sizes. 20 …”

“…27,59 Therefore, they represent a good alternative to existing methodologies for nanoparticle synthesis, which suffer from several drawbacks including nanoparticle agglomeration, high fabrication costs, safety concerns due to the use of toxic solvents, poor yields, and nonuniform particle sizes. 20 ■ CONCLUSIONS Inspired by the fact that the introduction of transition metal ions into the surfactants' structure leads to the development of new and/or advanced properties of materials, a series of novel dimeric metallosurfactants (12−2−12)[MBr 4 ], M = Co, Ni, Cu, and Zn, was synthesized in solvated and nonsolvated forms, and investigated both in solution and in the solid state. The obtained results demonstrate that the incorporation and choice of metal more dramatically influence the arrangement of surfactant molecules in the solid state and their magnetic properties, in comparison to their self-assembly features.…”

“…Another class of surfactants that has drawn much attention lately is metallosurfactants. − This term is commonly used to designate compounds that behave as surfactants and contain a metal in their molecular structures as part of the headgroup (type 1), hydrophobic tail (type 2), or counterion (type 3) . Recent reports have revealed that metallosurfactants exhibit enhanced physicochemical properties compared to conventional surfactants. − For this reason, metallosurfactants have been studied for a broad spectrum of applications such as catalysis, anticancer, and antimicrobial agents, , in nanoparticles synthesis, − drug-delivery, , and templates for mesoporous materials. , When considering, in particular, dimeric surfactants, only two types of their metalloderivatives have been reported in the literature. Yi et al have investigated a homologous series of dimeric surfactants: m -2- m [XCl 3 Br] ( m = 14, 16, 18) with X = Fe, Ce, and Gd .…”