Giant dendrimer-like particles from nanolatexes

Abstract

A straightforward grafting of a polycationic phosphorus-containing dendritic shell onto polystyrene nanoparticles leads to dendronized nanoparticles showing unique behavior.

Fluorescence Quenching upon Binding of Copper Ions in Dye‐Doped and Ligand‐Capped Polymer Nanoparticles: A Simple Way to Probe the Dye Accessibility in Nano‐Sized Templates

“…[41,[54][55][56][57][58][59][60][61] The grafting of the ligand onto the NPs surface is readily achieved by post-functionalization. [54,[58][59][60][61] With the objective of sensing Cu 2+ , we choose to graft a very efficient ligand of transition metal ions with a marked selectivity for cupric ions: 1,4,8,11-tetraazacyclotetradecane, so called cyclam (Scheme 1).…”

“…[41,[54][55][56][57][58][59][60][61] The grafting of the ligand onto the NPs surface is readily achieved by post-functionalization. [54,[58][59][60][61] With the objective of sensing Cu 2+ , we choose to graft a very efficient ligand of transition metal ions with a marked selectivity for cupric ions: 1,4,8,11-tetraazacyclotetradecane, so called cyclam (Scheme 1). [62,63] Fluorescent dyes can be incorporated in polymer particles by a variety of methods like copolymerization with reactive fluorophores, [33,35,36] entrapment of classical dyes introduced in the monomer(s) before polymerization [15,28,[30][31][32]37,38] or by soaking pre-existing particles.…”

gem‐Bisphosphonate‐Ended Group Dendrimers: Design and Gadolinium Complexing Properties

“…Among the different types of dendrimers, those incorporating phosphorus [2][3][4][5][6] were found to be extremely versatile "soft matter" bringing specific properties for example as two photons tracers for in vivo imaging, [7][8][9][10] for gene transfection [11,12] or antiprion activity. [13][14][15] Their crucial role for the elaboration of new materials as dendronized nanolatexes, [16] nanotubes, [17,18] fibres, [19] antiviral supramolecular assemblies, [20,21] DNA chips, [22,23] microcapsules, [24] chemical sensors [25] was also pointed out while enhanced catalytic performance of ligands were observed when multiple copies of these monomers were incorporated on the surface of Pdendrimers. [26] Phosphorus-containing dendrimers capped with amino bismethylene phosphonates or phosphonic acids of type A were found to induce a remarkable bioactivity promoting the activation of human monocytes and the selective multiplication of human Natural Killer (NK) cells.…”

In Quest of a Systematic Framework for Unifying and Defining Nanoscience

“…27) (Larpent et al 2004). The lower-generation dendrons (e.g., Gen. = 0) bonded to the [S-2]; nanolatex surface to give a nanocompound with a mass ratio of 1 dendron:cyclam unit.…”