نتایج جستجو برای: dendrimer

تعداد نتایج: 2266  

Journal: :Optics express 2012
J W Levell S Zhang W-Y Lai S-C Lo P L Burn I D W Samuel

We show that it is possible to produce an efficient solution-processable phosphorescent poly(dendrimer) OLED with a 32 lm/W power efficiency at 100 cd/m2 without using a charge transporting host or any improvements in light extraction. This is achieved by using the dendrimer architecture to control inter-chromophore interactions. The effects of using 4,4',4″-tris(N-carbazolyl)triphenylamine (TC...

2014
Alie M. Mallet Yuanli Liu Marco Bonizzoni

1. Materials: .................................................................................................................... 2 2. Structure of PAMAM dendrimers: ............................................................................. 2 3. Instrumentation: .......................................................................................................... 2 4. Experimental condi...

Journal: :Molecules 2018
Takane Imaoka Noriko Bukeo Kimihisa Yamamoto

Mono-molecular films formed by physical adsorption and dendrimer self-assembly were prepared on various substrate surfaces. It was demonstrated that a uniform dendrimer-based monolayer on the subnanometer scale can be easily constructed via simple dip coating. Furthermore, it was shown that an epitaxially grown monolayer film reflecting the crystal structure of the substrate (highly ordered pyr...

Journal: :Inorganic chemistry frontiers 2021

“Click” dendrimer-Pd NPs as peroxidase enzyme mimics of H2O2 sensing using o-phenylenediamine oxidation by to 2,3-diaminophenazine.

Journal: :Polymer Chemistry 2021

This review provides a comprehensive and critical overview of the supramolecular dendrimer-containing multifunctional layer-by-layer nanoassemblies driven by multitude intermolecular interactions for biological biomedical applications.

Journal: :Journal of the American Chemical Society 2003
Joaquin C Garcia-Martinez Robert W J Scott Richard M Crooks

We describe a strategy for extracting nearly size-monodisperse, 1.7-nm-diameter Pd nanoparticles from within dendrimer hosts. The approach involves two steps. First, an aqueous solution of dendrimer-encapsulated Pd nanoparticles is prepared, followed by the addition of a toluene solution containing an n-alkanethiol. When the two-phase system is stirred, n-alkanethiols presumably self-assemble o...

2012
Dominic A. Lenz Ronald Blaak Christos N. Likos Bianca M. Mladek

A generic view of the amphiphilic dendrimer architecture, of the effective pair potential and of the hierarchical assembly of the molecules into a cluster crystal is shown in Fig. S1. We employ the dendrimer model already introduced before in Refs. [1, 2] and based on Ref. [3]. We study amphiphilic dendrimers of second generation which have two central monomers. The dendrimers’ 14 monomers are ...

Journal: :The European physical journal. E, Soft matter 2004
A Mecke I Lee J R Baker M M Banaszak Holl B G Orr

Experimental data indicates that poly(amidoamine) (PAMAM) dendrimers flatten when in contact with a substrate, i.e. they are no longer spherical, but resemble flat disks. In order to better understand the deformation behavior of these branched polymers, a series of atomistic molecular dynamics simulations is performed. The resulting flattened dendrimer conformations are compared to atomic force...

Journal: :Nanoscale 2021

Förster Resonance Energy Transfer in combination with fluorescence quenching are exploited to reveal the binary, ternary and quaternary core compositions of dendrimer-based complex coacervate micelles.

Journal: :Nanoscale 2011
Li-Tang Yan Xiaobo Yu

Mesoscale simulations are performed to study the complexes between a dendrimer and a vesicle of amphiphilic molecules. In particular, the assembled structures and dynamics of these complexes are investigated by tuning vesicle size and the surface tension of vesicle membrane. Our simulations demonstrate that a dendrimer-based bulge containing amphiphilic molecules forms in the vesicle membrane w...

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