Publications associées à Dendrimère

Palladium-based supramolecular assemblies: from complex structures to water-soluble anion-receptors

The combination of palladium salts and bipyridyl ligands can lead to the formation of a large variety of coordination complexes, with different shapes and sizes, displaying a very versatile host-guest chemistry. Increasing their structural complexity remai ...

EPFL2024

Biodegradable dendrimer functionalized carbon nanotube-hybrids for biomedical applications

Lakshmi Devi Chakkarapani

In the present study, biodegradable poly(amidoamine) dendrimers (PAMAM G1/G2/G3) was covalently functionalized with carbon nanotubes (CNTs) and nanostructured hydroxyapatite was immobilized onto CNTs-PAMAM matrix through coordination bond between the -NH2 ...

2019

Application of Hypervalent Iodine Reagents for Novel Cysteine Labeling

Romain Gaëtan Tessier

Selective functionalization of peptides and proteins has always been a valuable tool for the study and manipulation of biological processes. In this context, cysteines are of particular interest. Their intrinsic high nucleophilicity makes these amino acids ...

EPFL2019

Higher generation cationic N,N-ruthenium(II)-ethylene-glycol-derived metallodendrimers: Synthesis, characterization and cytotoxicity

Paul Joseph Dyson, Tina Riedel

A new series of higher generation cationic N,N-chelating, ruthenium(II)-ethylene-glycol metallodendrimers from first-, second-, third- and fourth-generation pyridylimine-based poly(propylene) dendrimer scaffolds of the type, DAB-(NH2) (where n = 4, 8, 16 o ...

Elsevier Science Sa2015

Large, heterometallic coordination cages based on ditopic metallo-ligands with 3-pyridyl donor groups

Rosario Scopelliti, Kay Severin, Philip Pattison, Euro Solari, Matthew David Wise

Ditopic N-donor ligands with terminal 4-pyridyl groups are omnipresent in coordination-based self-assembly. The utilization of ligands with 3-pyridyl donor groups is significantly less common, because the intrinsic conformational flexibility of these ligan ...

2015

Potential of Cycloaddition Reactions To Generate Cytotoxic Metal Drugs In Vitro

Paul Joseph Dyson, Sviatlana Siankevich, Benjamin Samuel Murray, Stéphanie Crot

Severe general toxicity issues blight many chemotherapeutics utilized in the treatment of cancers, resulting in the need for more selective drugs able to exert their biological activity at only the required location(s). Toward this aim, we report the devel ...

Amer Chemical Soc2014

Functional, Hyperbranched Polyesters Via Baylis-Hillman Polymerization

Harm-Anton Klok, Sanhao Ji, Frederik Roman Wurm

Hyperbranched polyesters are among the most common hyperbranched polymers. One of the interesting features of hyperbranched polyesters is that they contain unreacted hydroxyl and carboxylic acid groups at the linear and terminal structural units, which can ...

2012

Efficient Orthogonal Bioconjugation of Dendrimers for Synthesis of Bioactive Nanoparticles

Laure Menin

Nanoparticles carrying biologically active functional sets (e.g., targeting moiety, payload, tracer) have potential use in a wide range of clinical applications. Though complex, such constructions should, as far as possible, have a defined molecular archit ...

2011

Dendritic and hyperbranched polyamides

Harm-Anton Klok, Zuzana Kadlecova, Markus Scholl

This article discusses the synthesis and properties of dendritic and hyperbranched polyamides. The first part of the article focuses on peptide dendrimers and starts with providing an overview of the synthetic pathways that have been used to prepare dendri ...

2009

Composites and methods for their production

Yves Leterrier, John Christopher Plummer, Marlene Rodlert

Intercalates and exfoliates formed from layered materials and dendritic polymers are disclosed, together with the uses of these materials, e.g. in producing composite materials. The dispersion of layered materials in a dendritic polymer matrix (hyperbranch ...

2008

Self-assembly of boron-based supramolecular structures

Nicolas Christinat

This work describes the synthesis and characterization of boronic acid-based supramolecular structures. Macrocycles, dendritic structures, polymers, rotaxanes, and cages were assembled using four types of reversible reactions. The key point of the strategy ...

EPFL2008

Synthesis, structural characterization and applications of hyperbranched polymers based on L-lysine

Markus Scholl

L-lysine is an essential a-amino acid and a necessary building block for all proteins in the body. As an essential amino acid, L-lysine is not synthesized by humans or animals. Industrially produced L-lysine has therefore a big market as food additive, e.g ...

EPFL2007

Controlling polymer architecture in the thermal hyperbranched polymerization of L-lysine

Harm-Anton Klok, Markus Scholl

Because of the unequal reactivity of the two amine groups of L-lysine hydrochloride, thermal polymerization of this asymmetrical AB2 monomer results in hyperbranched polymers, which contain ?2.5 times more N?-linked linear compared to N?-linked linear stru ...

American Chemical Society2007

Phosphinic derivative of DTPA conjugated to a G5 PAMAM dendrimer: an 17O and 1H relaxation study of its Gd(III) complex

André Merbach, Lothar Helm, Eva Jakab Toth, Petra Lebduskova

A DTPA-based chelate containing one phosphinate group was conjugated to a generation 5 polyamidoamine (PAMAM) dendrimer via a benzylthiourea linkage. The Gd(III) complex of this novel conjugate has potential as a contrast agent for magnetic resonance imagi ...

2006

Water-soluble, unimolecular containers based on amphiphilic multiarm star block copolymers

Harm-Anton Klok, Céline Ternat, John Christopher Plummer

A new class of water-soluble, amphiphilic star block copolymers with a large number of arms was prepared by sequential atom transfer radical polymerization (ATRP) of n-butyl methacrylate (BMA) and poly-(ethylene glycol) methyl ether methacrylate (PEGMA). A ...

American Chemical Society2006

Rotational Dynamics Account for pH-Dependent Relaxivities of PAMAM Dendrimeric, Gd-Based Potential MRI Contrast Agents

André Merbach, Eva Jakab Toth, Sabrina Laus

The EPTPA5- chelate, which ensures fast water exchange in GdIII complexes, has been coupled to three different generations (5, 7, and 9) of polyamidoamine (PAMAM) dendrimers through benzylthiourea linkages (H5EPTPA=ethylenepropylenetriamine-N,N,N,N,N-penta ...

2005

L-lysine dendronized polystyrene

Harm-Anton Klok

This paper reports the synthesis and characterization of a novel class of dendronized polymers which are based on styrene functionalized dendritic L-lysine macromonomers. Free radical polymerization of zeroth and first generation macromonomers afforded den ...

American Chemical Society2005