نتایج جستجو برای: poly ethylene glycol

تعداد نتایج: 115260  

Journal: :Chemical communications 2007
Juntao Luo Christophe Pardin William D Lubell X X Zhu

New poly(vinyl alcohol)-graft-poly(ethylene glycol) (PVA-g-PEG) resins with various PEG chain lengths, which have high loadings and good swelling both in water and organic solvents, have been prepared via an anionic polymerization of ethylene oxide onto PVA beads and applied in solid-phase synthesis, supported TEMPO catalysis and in HR-MAS 1H NMR spectral analysis.

Journal: :Physiological chemistry and physics and medical NMR 1983
G N Ling M M Ochsenfeld

The quantitative relationships between the concentrations of solutions of gelatin, polyvinylpyrrolidone, poly(ethylene oxide), polyvinylmethylether, and poly(ethylene glycol), and their ability to reduce the solubility of water for Na citrate are presented. The data in general are in harmony with the polarized multilayer theory of protein (and polymer) dominated water in vitro and in living cells.

Journal: :Biomaterials 2000
K Podual F J Doyle N A Peppas

Poly(diethylaminoethyl-g-ethylene glycol) microparticles were prepared by suspension polymerization of diethylaminoethyl methacrylate, poly(ethylene glycol) monomethacrylate and the crosslinking agent tetra(ethylene glycol) dimethacrylate in silicone oil using redox initiators. Particles of different sizes, crosslinking ratios and graft molecular weights were prepared. The changes in the swelli...

2005
Nicholas A. Peppas

Poly[(diethylaminoethyl methacrylate)-graft-(ethylene glycol)] hydrogels were prepared with a molar ratio of 10:1 of diethylaminoethyl methacrylate to poly(ethylene glycol) of number-average molecular weights (Mn) 200, 400 and 1000 g mol−1 using tetra(ethylene glycol) dimethacrylate to give a crosslinking ratio between 0.5 and 4.0 %. Glucose oxidase and catalase were immobilized in the matrix d...

2015
Xue-Mei Li Hong-Ling Liu Xiao Liu Ning Fang Xian-Hong Wang Jun-Hua Wu

Bi-phase dispersible core-shell FeAu@ZnO magneto-opto-fluorescent nanoparticles were synthesized by a modified nanoemulsion process using poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol) (PEO-PPO-PEO) as the surfactant. The morphology and crystal structure of the nanoparticles were studied by TEM/HRTEM and XRD. The nanoparticles manifest soft ferromagnetic and/or n...

Journal: :Chemical communications 2007
Hyon Bin Na In Su Lee Heonjin Seo Yong Il Park Jung Hee Lee Sang-Wook Kim Taeghwan Hyeon

We report the simple synthesis of poly(ethylene glycol)(PEG)-derivatized phosphine oxide ligands for water-dispersible metal oxide nanocrystals.

Journal: :Analytical chemistry 2010
Kuo-Hsiang Chuang Shey-Cherng Tzou Ta-Chun Cheng Chien-Han Kao Wei-Lung Tseng Jentaie Shiea Kuang-Wen Liao Yun-Ming Wang Ya-Chen Chang Bo-Jyun Huang Chang-Jer Wu Pei-Yu Chu Steve R Roffler Tian-Lu Cheng

Poly(ethylene glycol) (PEG) is increasingly used in clinical and experimental medicine. However, quantification of PEG and PEGylated small molecules remains laborious and unsatisfactory. In this report, we stably expressed a functional anti-PEG antibody on the surface of BALB 3T3 cells (3T3/alphaPEG cells) to develop a competitive enzyme-linked immunosorbent assay (ELISA) for PEG quantification...

2015
Xiao Liu HongLing Liu WenXing Zhang XueMei Li Ning Fang XianHong Wang JunHua Wu

Bi-phase dispersible Cu-ZnO hybrid nanoparticles were synthesized by one-pot non-aqueous nanoemulsion with the use of poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol) (PEO-PPO-PEO) as the surfactant. The transmission electron microscopy (TEM) and X-ray diffraction (XRD) show high crystallinity of the Cu-ZnO hybrid nanoparticles and an average particle size of ~19.4...

2013
Dan Wang Huiming Lin Jingjie Jiang Xiao Han Wei Guo Xiaodan Wu Yingxue Jin Fengyu Qu

Magnetic and macro/mesoporous bioactive glasses were synthesized by a one-pot method via a handy salt leaching technique. It was identified to be an effective and simple synthetic strategy. The non-ionic triblock copolymer, poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol) (P123), was used as the structure directing agent for mesoporous structure but also as the red...

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