Self-Assembled Inverted Micelles Prepared from a Dendrimer Template:  Phase Transfer of Encapsulated Guests

Dendrimer-Encapsulated Metal Nanoparticles: Synthesis, Characterization, and Applications to Catalysis

“…2,28 We endeavor to trap metal ions exclusively within the interiors of dendrimers. It is possible to prevent metalion complexation to the periphery of amine-terminated dendrimers either by selective protonation of the primary amines (for PAMAM dendrimers, the surface primary amines (pK a ) 9.5) are more basic than the interior tertiary amines (pK a ) 5.5)) 3,8,30 or by functionalization with noncomplexing terminal groups. [3][4][5] The latter approach eliminates the restrictive pH window necessitated by selective protonation.…”

Controlling the number of dendrimers in dendrimicelle nanoconjugates from 1 to more than 100

“…[18][19][20][21][22] In fact, PAMAM-based "unimolecular micelles" consisting of a single dendrimer modied with oppositely charged surfactants were reported about 15 years ago. 23,24 More recently, Grohn et al reported assembly of amine-terminated PAMAM dendrimers with PMAA 170 -b-PEO 203 diblock copolymers, resulting in poorly controlled aggregates probably due to the insufficient protection by the PEO block. 25 Herein, we introduce an improved design based on the well-established concept of complex coacervate core micelles (C3Ms), 26 extended now to incorporate dendrimers within the coacervate core.…”

Use of Dendrimers during the Synthesis of Pt-Ru Electrocatalysts for PEM Fuel Cells: Effects on the Physical and Electrochemical Properties

“…Subsequent union between other monomers and the extreme of the first linked monomers generates a second generation and thus, next generations are formed until steric hindrance inhibits formation of further shells [7]. Because of these structural characteristics, they were successfully used as a template for metal nanoparticles formation, providing five principal advantages [8]: (1) the possibility of obtaining well-defined 2 International Journal of Electrochemistry size and shape nanoparticles due to their uniform structure [9], (2) avoid agglomeration of nanoparticles by stabilization into the dendrimer structure [10], (3) protection towards passivation and enabling to catalytic activity by means of steric hindrance which surround the nanoparticles [11], (4) the selectivity towards access of small substrates to the encapsulated catalytic nanoparticles, controlled by the dendrimer branches, and (5) terminal amino groups of the molecule could be modified for controlling the solubility of dendrimer-nanoparticle composite, providing the possibility of linkage to others polymers [12].…”