نتایج جستجو برای: hyperbranched polymer

تعداد نتایج: 93884  

2015
Katharina Koschek Vedat Durmaz Oxana Krylova Marek Wieczorek Shilpi Gupta Martin Richter Alexander Bujotzek Christina Fischer Rainer Haag Christian Freund Marcus Weber Jörg Rademann

Three polymers, poly(N-(2-hydroxypropyl)methacrylamide) (pHPMA), hyperbranched polyglycerol (hPG), and dextran were investigated as carriers for multivalent ligands targeting the adaptive tandem WW-domain of formin-binding protein (FBP21). Polymer carriers were conjugated with 3-9 copies of the proline-rich decapeptide GPPPRGPPPR-NH2 (P1). Binding of the obtained peptide-polymer conjugates to t...

Journal: :The journal of physical chemistry. B 2005
Chao Gao Yi Zheng Jin Hao Kong Raymond L D Whitby Steve F A Acquah G Y Chen Huihong Qian Achim Hartschuh S R P Silva Simon Henley Peter Fearon Harold W Kroto David R M Walton

An in situ polycondensation approach was applied to functionalize multiwalled carbon nanotubes (MWNTs), resulting in various linear or hyperbranched polycondensed polymers [e.g., polyureas, polyurethanes, and poly(urea-urethane)-bonded carbon nanotubes]. The quantity of the grafted polymer can be easily controlled by the feed ratio of monomers. As a typical example, the polyurea-functionalized ...

2018
Xunyong Liu Chenxue Zhu Li Xu Yuqing Dai Yanli Liu Yi Liu

The development of a green and facile strategy for synthesizing high stable gold nanoparticles (AuNPs) is still highly challenging. Additionally, the main problems regarding AuNPs based colorimetric sensors are their poor selectivity and low sensitivity, as well their tendency to aggregate during their synthesis and sensing process. Herein, we present an in-situ reduction strategy to synthesize...

Journal: :Advanced photonics research 2022

The main practical method for fabricating fine optical structures involves mounting them on the surface of a substrate. Although there are other methods inside materials, none fabrication structures, particularly resonator structures. Thus, novel method, namely, infill printing in which structure is embedded nanoporous film, demonstrated to fabricate highly transparent film comprises nonspheric...

2014
Qun Chen Chengzhen Wei Yizhou Zhang Huan Pang Qingyi Lu Feng Gao

Single-crystalline hyperbranched nanostructures of iron hydroxyl phosphate Fe5(PO4)4(OH)3·2H2O (giniite) with orthorhombic phase were synthesized through a simple route. They have a well-defined dendrite fractal structure with a pronounced trunk and highly ordered branches. The toxicity test shows that the hyperbranched nanostructures have good biocompatibility and low toxicity level, which mak...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2010
Santimukul Santra Charalambos Kaittanis J Manuel Perez

Herein we report the design and synthesis of multifunctional hyperbranched polyester-based nanoparticles and nanocomposites with properties ranging from magnetic, fluorescence, antioxidant and X-ray contrast. The fabrication of these nanostructures was achieved using a novel aliphatic and biodegradable hyperbranched polyester (HBPE) synthesized from readily available diethyl malonate. The polym...

2014
Michael J. Saxton

Scalable tracers are potentially a useful tool to examine diffusion mechanisms and to predict diffusion coefficients, particularly for hindered diffusion in complex, heterogeneous, or crowded systems. Scalable tracers are defined as a series of tracers varying in size but with the same shape, structure, surface chemistry, deformability, and diffusion mechanism. Both chemical homology and consta...

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