Poly(ethylene glycol)-b-Poly(ε-caprolactone) and PEG-Phospholipid Form Stable Mixed Micelles in Aqueous Media

Langmuir ◽  
2006 ◽  
Vol 22 (23) ◽  
pp. 9723-9729 ◽  
Author(s):  
Ronak Vakil ◽  
Glen S. Kwon
Keyword(s):  
Ethylene Glycol ◽  
Mixed Micelles ◽  
Aqueous Media ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene

Mixed micelles of cetyltrimethylammonium bromide and poly(ethylene glycol)-600 monolaurate as catalysts of polyethylenimine phosphorylation in chloroform

2006 ◽  
Vol 55 (8) ◽  
pp. 1411-1418 ◽  
Author(s):  
G. A. Gainanova ◽  
E. P. Zhil’tsova ◽  
L. A. Kudryavtseva ◽  
S. V. Kharlamov ◽  
Sh. K. Latypov ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Cetyltrimethylammonium Bromide ◽  
Mixed Micelles ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene

Mixed micelles from methoxy poly(ethylene glycol)–polylactide and methoxy poly(ethylene glycol)–poly(sebacic anhydride) copolymers as drug carriers

2012 ◽  
Vol 72 (11) ◽  
pp. 846-855 ◽  
Author(s):  
Po-Liang Lai ◽  
Cheng-Chun Hsu ◽  
Tsang-Hao Liu ◽  
Ding-Wei Hong ◽  
Lih-Huei Chen ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Mixed Micelles ◽  
Drug Carriers ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene

Copolymer Nanoparticles Prepared by Self-Assembly of Poly(ethylene glycol) and Poly-γ-Glutamic Acid and its Characteristics

2013 ◽  
Vol 662 ◽  
pp. 136-139
Author(s):  
Ge Yang ◽  
Ke Shuai Lu ◽  
Xue Yan Su
Keyword(s):  
Ethylene Glycol ◽  
Glutamic Acid ◽  
Size Distribution ◽  
Self Assembly ◽  
Aqueous Media ◽  
Poly Ethylene Glycol ◽  
Polyelectrolyte Complexes ◽  
Self Assembling ◽  
Transmission Electron ◽  
Poly Ethylene

The paper describes the preparation and characterization of novel biodegradable nanoparticles based on self-assembly of poly-gamma-glutamic acid (γ-PGA) and poly(ethylene glycol) (PEG). The nanosystems were stable in aqueous media at low pH conditions. Solubility of the systems was determined by turbidity measurements. The particle size and the size distribution of the polyelectrolyte complexes were identified by dynamic lightscattering and transmission electron microscopy.It was found that the size and size distribution of the nanosystems depends on the concentrations of γ-PGA and PEG solutions and their ratio as well as on the pH of the mixture and the order of addition. The diameter of individual particles was in the range of 30–270 nm. measured by TEM, and the average hydrodynamic diameters were between 130 and 300 nm. These biodegradable, self-assembling stable nanocomplexes might be useful for several biomedical applications.

scholarly journals α-((4-Cyanobenzoyl)oxy)-ω-methyl poly(ethylene glycol): a new stabilizer for silver nanoparticles

2017 ◽  
Vol 8 ◽  
pp. 627-635 ◽  
Author(s):  
Jana Lutze ◽  
Miguel A Bañares ◽  
Marcos Pita ◽  
Andrea Haase ◽  
Andreas Luch ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Ethylene Glycol ◽  
Metal Nanoparticles ◽  
Ph Value ◽  
Aqueous Media ◽  
Poly Ethylene Glycol ◽  
H Nmr ◽  
Anchor Group ◽  
Poly Ethylene ◽  
Cyano Groups

The article describes the synthesis and properties of α-((4-cyanobenzoyl)oxy)-ω-methyl poly(ethylene glycol), the first poly(ethylene glycol) stabilizer for metal nanoparticles that is based on a cyano rather than a thiol or thiolate anchor group. The silver particles used to evaluate the effectiveness of the new stabilizer typically have a bimodal size distribution with hydrodynamic diameters of ca. 13 and ca. 79 nm. Polymer stability was evaluated as a function of the pH value both for the free stabilizer and for the polymers bound to the surface of the silver nanoparticles using 1H NMR spectroscopy and zeta potential measurements. The polymer shows a high stability between pH 3 and 9. At pH 12 and higher the polymer coating is degraded over time suggesting that α-((4-cyanobenzoyl)oxy)-ω-methyl poly(ethylene glycol) is a good stabilizer for metal nanoparticles in aqueous media unless very high pH conditions are present in the system. The study thus demonstrates that cyano groups can be viable alternatives to the more conventional thiol/thiolate anchors.

scholarly journals Mixed micelles of lipoic acid-chitosan-poly(ethylene glycol) and distearoylphosphatidylethanolamine-poly(ethylene glycol) for tumor delivery

2017 ◽  
Vol 101 ◽  
pp. 228-242 ◽  
Author(s):  
Zeeneh Elsaid ◽  
Kevin M.G. Taylor ◽  
Sanyogitta Puri ◽  
Cath A. Eberlein ◽  
Khuloud Al-Jamal ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Lipoic Acid ◽  
Mixed Micelles ◽  
Poly Ethylene Glycol ◽  
Tumor Delivery ◽  
Poly Ethylene
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