نتایج جستجو برای: ethylene supramolecular organization

تعداد نتایج: 288567  

Journal: :Chemical communications 2015
Mellany Ramaekers Sjors P W Wijnands Joost L J van Dongen Luc Brunsveld Patricia Y W Dankers

The interplay of Phe-Gly-Gly (FGG)-tagged proteins and bivalent FGG-tagged penta(ethylene glycol) as guest molecules with cucurbit[8]uril (Q8) hosts is studied to modulate the supramolecular assembly process. Ring structure formation of the bivalent guest molecule with Q8 leads to enhanced binding properties and efficient inhibition of protein assemblies.

Journal: :Chemical communications 2005
Philippe Barthelemy Carla A H Prata Shaun F Filocamo Chad E Immoos Benjamin W Maynor S A Nadeem Hashmi Stephen J Lee Mark W Grinstaff

A neutral uridine-based amphiphile is described which condenses plasmid DNA. AFM studies show that the three distinct structural components of the amphiphile (i.e, nucleobase, alkyl chains, and poly(ethylene glycol)) are required for the formation of DNA-amphiphile supramolecular assemblies on a mica surface.

Journal: :Physical chemistry chemical physics : PCCP 2010
Tobias Schröder Thomas Geisler Volker Walhorn Björn Schnatwinkel Dario Anselmetti Jochen Mattay

The specific interaction of a supramolecular binding motif was quantitatively evaluated by dynamic single-molecule force spectroscopy (SMFS) using an atomic force microscope (AFM). The supramolecular capsule forms by two different cavitands stitched together by four hydrogen bonds between carboxylic acid and pyridyl groups. The tetra(carboxyl)cavitand is monofunctionalized at the lower rim with...

Journal: :Physical review letters 2016
M Monkenbusch M Krutyeva W Pyckhout-Hintzen W Antonius C H Hövelmann J Allgaier A Brás B Farago A Wischnewski D Richter

The chain and association dynamics of supramolecular polymer ensembles decisively determines their properties. Using neutron spin echo (NSE) spectroscopy we present molecular insight into the space and time evolution of this dynamics. Studying a well characterized ensemble of linearly associating telechelic poly(ethylene glycol) melts carrying triple H-bonding end groups, we show that H-bond br...

2016
Yue Zheng Ian W. Wyman Jianxun Ding

Cyclodextrins (CDs) have been extensively studied as drug delivery carriers through host–guest interactions. CD-based poly(pseudo)rotaxanes, which are composed of one or more CD rings threading on the polymer chain with or without bulky groups (or stoppers), have attracted great interest in the development of supramolecular biomaterials. Poly(ethylene oxide) (PEO) is a water-soluble, biocompati...

2016
Roser Sabater i Serra Laia León-Boigues Antonio Sánchez-Laosa Luis Gómez-Estrada José Luis Gómez Ribelles Manuel Salmeron-Sanchez Gloria Gallego Ferrer

Poly(ethyl acrylate) (PEA) induces the formation of biomimetic fibronectin (FN) (nano)networks upon simple adsorption from solutions, a process referred to as material-driven FN fibrillogenesis. The ability of PEA to organize FN has been demonstrated in 2D and 2.5D environments, but not as yet in 3D scaffolds, which incorporate three-dimensionality and chemical crosslinkers that may influence i...

Journal: :Molecules 2018
Joaquín Calbo Juan Carlos Sancho-García Enrique Ortí Juan Aragó

Understanding how molecular systems self-assemble to form well-organized superstructures governed by noncovalent interactions is essential in the field of supramolecular chemistry. In the nanoscience context, the self-assembly of different carbon-based nanoforms (fullerenes, carbon nanotubes and graphene) with, in general, electron-donor molecular systems, has received increasing attention as a...

2015
Stuart Rowan Souleymane Coulibaly Christian Heinzmann Frederick L. Beyer Sandor Balog Christoph Weder Gina L. Fiore

Supramolecular Polymers with Orthogonal Functionality Report Title Supramolecular polymers with orthogonal interactions are of broad interest, and reports on such materials with multifunctional stimuli-responsive behavior are rare. Polymer blends based on a poly(ethylene-co-butylene) core (PEB) terminated with either 2-ureido-4[1H]-pyrimidinone (UPy) hydrogen-bonding motifs (UPy-PEB-UPy) or 2,6...

Journal: :Journal of the American Chemical Society 2011
Ibrahim Yildiz Stefania Impellizzeri Erhan Deniz Bridgeen McCaughan John F Callan Françisco M Raymo

We designed and synthesized an amphiphilic copolymer with pendant hydrophobic decyl and hydrophilic poly(ethylene glycol) chains along a common poly(methacrylate) backbone. This macromolecular construct captures hydrophobic boron dipyrromethene fluorophores and hydrophobic spiropyran photochromes and transfers mixtures of both components in aqueous environments. Within the resulting hydrophilic...

Journal: :Chemical communications 2011
Xuzhou Yan Mi Zhou Jianzhuang Chen Xiaodong Chi Shengyi Dong Mingming Zhang Xia Ding Yihua Yu Shuang Shao Feihe Huang

Driven by the benzo-21-crown-7/secondary ammonium salt recognition motif, a linear supramolecular polymer was formed from self-organization of a low-molecular-weight self-complementary monomer in chloroform. From this supramolecular polymer, nanofibers were obtained successfully via electrospinning.

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید