نتایج جستجو برای: polyethyleneimine

تعداد نتایج: 1561  

Journal: :Small 2009
Manuel DaSilva Matthew M Schneider Daniel S Wood Bong-Joong Kim Eric A Stach Timothy D Sands

2017
Chen Shen Jun Li Yi Zhang Yuce Li guanxin Shen Jintao Zhu Juan Tao

[This corrects the article on p. 5443 in vol. 12, PMID: 28814862.].

Journal: :International Journal of Environmental Research and Public Health 2016

Journal: :E3S web of conferences 2023

A polyethylenimine adjuvant modified by mannose, which may be used in the study of vaccine adjuvant, was prepared this paper. Its structure characterized infrared spectroscopy and its micromorphology observed transmission electron microscopy. series mannose-modified polyvinylimine were according to molar ratio primary amine groups between mannose polyvinylimine, their storage stability at 4°C. ...

Journal: :Faraday discussions 2014
Quirin M Kainz Soraia Fernandes Corina M Eichenseer Francesca Besostri Helmut Körner Rainer Müller Oliver Reiser

Ferromagnetic carbon-coated cobalt nanoparticles have been ligated by a covalent or non-covalent strategy with dendrons or polymers bearing amino-, hydroxy- or polyether-functionalities, aiming at synthesizing materials that are dispersible in aqueous solutions, being a prerequisite for applications in biomedicine. Most efficiently for this purpose proved to be a covalently anchored polyethylen...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2009
Jinhong Fu Jian Ji Liyan Shen Alexander Kuller Axel Rosenhahn Jiacong Shen Michael Grunze

We report a direct method to amplify the exponential growth of multilayers significantly by the alternating deposition of polyethylenimine (PEI) at high pH and poly(acrylic acid) (PAA) at low pH. The alternating pH switches the degree of ionization of the polyelectrolytes in the multilayers, which enhances the diffusion of PEI into and out of the film and hence increases the deposited mass per ...

Journal: :Chemical communications 2010
Mubarak Ali Quoc Hung Nguyen Reinhard Neumann Wolfgang Ensinger

Here, we demonstrate an anion controlled molecular gate based on synthetic ion channels modified with polyethyleneimine. For single conical nanochannels, addition of ATP leads to significant decrease in the rectified ion flux, representing the closure of the ionic gate. Complementary experiments performed with nanoporous membranes show that the flux of charged dye (NDS(2-)) through a cylindrica...

Journal: :Chemical communications 2015
Friederike Kettling Benjamin Vonhören Jennifer A Krings Susumu Saito Bart Jan Ravoo

A novel method to prepare microstructured polymer brushes using TiO2 nanoparticles and photocatalytic microcontact printing is described. It is shown that ethanol amine can be polymerized to linear polyethyleneimine (PEI) driven by the photocatalytic action of TiO2. Upon UV irradiation during microcontact printing of ethanol amine with a stamp coated with TiO2 nanoparticles, patterned polymer b...

Journal: :Nano letters 2009
Jin-Oh You Debra T Auguste

Treatment of diseases on the molecular level by genetic material is limited by effective delivery mechanisms. We focused on the synthesis of a pH-sensitive gene delivery vehicle based on dimethylaminoethyl methacrylate (DMAEMA) with tunable swelling, cross-linking density, and DNA release kinetics within the endosomal pH range. Our strategy, which utilized a single step for DNA encapsulation, e...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید