Facile synthesis of poly-(l-lysine) dendrimers with a pentaaminecobalt(III) complex at the core
摘要:
The synthesis of second and third generation dendrimers based on poly-(L-lysine) with a pentaamine cobalt(III) metal complex at the core is described. The synthesis and purification of these dendrimers were facilitated by using the metal complex as the C-terminal protecting group. (c) 2005 Elsevier Ltd. All rights reserved.
Facile synthesis of poly-(l-lysine) dendrimers with a pentaaminecobalt(III) complex at the core
摘要:
The synthesis of second and third generation dendrimers based on poly-(L-lysine) with a pentaamine cobalt(III) metal complex at the core is described. The synthesis and purification of these dendrimers were facilitated by using the metal complex as the C-terminal protecting group. (c) 2005 Elsevier Ltd. All rights reserved.
Syntheses of dendritic branches based on l-lysine: is the stereochemistry preserved throughout the synthesis?
作者:Malcolm Driffield、David M. Goodall、David K. Smith
DOI:10.1039/b304410f
日期:——
stereochemistry in the dendritic peptide was dependent on the method of synthesis, with divergent methodology being preferred. The results are discussed in terms of the known stereochemical outcomes of traditional peptide coupling processes, and are generalised to the synthesis of other dendritic peptides. Such observations about the chirality of dendritic peptides are of relevance to chemists developing
A new type of molecular and supramolecular strategy is proposed to controllably construct mixed-charged nanoparticles with resistance to protein adsorption.
提出了一种新型的分子和超分子策略,以可控的方式构建具有蛋白质吸附抗性的混合电荷纳米颗粒。
Supramolecular dendrimer chemistry: using dendritic crown ethers to reversibly generate functional assemblies
作者:Graham M. Dykes、David K. Smith
DOI:10.1016/s0040-4020(03)00468-x
日期:2003.5
cations possessing longalkyl spacer chains as templates has also been investigated, and in this case, the 2:1 assembly that forms, goes on to achieve higher order levels of organisation, hence gelating the solvent. This particular system is therefore a rare example in which discrete, characterisable dendritic supermolecules possess an inherent potential for further supramolecular assembly, to yield new
Individual dendritic branches can solubilise hydrophilic dyes in apolar media. The functional group at the focal point of the dendritic branch plays a key role in the dye uptake process. Supramolecular interactions between carboxylic acid and amine groups have been shown to be effective in enabling efficient solubilisation to occur. The necessary complementarity of this interaction is further illustrated by a series of control experiments. The extent of dendritic branching (i.e. dendritic generation) plays a key role in controlling the extent of dye uptake, with higher-generation dendritic branches exhibiting more efficient uptake at lower concentrations. UV/Visible spectroscopic methods have shown that the dendritic branches, in addition to the tuning of the extent of dye uptake, also tune the optical properties of the solubilised dye and this provides further insight into the interactions occurring between the solubilised dye and the individual dendritic branches. Furthermore, it is shown that suitably functionalised dendritic branches can transport hydrophilic dyes through an apolar phase and deliver them continuously into an aqueous medium.
Controlled Release of a Dendritically Encapsulated Template Molecule
作者:Graham M. Dykes、David K. Smith、Gordon J. Seeley