Self-Assembly of Poly(g-benzyl L-glutamate)-block-poly(ethylene glycol) and Poly(g-benzyl L-glutamate)-graft-poly(ethylene glycol) Blend in Ethanol
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چکیده
منابع مشابه
Stability of Trinitroglycerin in Polyethylene Glycol 400
In this study, the stability of trinitroglycerin (TNG) in polyethylene (PEG) 400 was investigated according to Arrhenius approach. The reaction rate constant (k) for the thermal disintegration of TNG in PEG 400 at various temperatures was counted based on the percents of remaining TNG at different intervals of time at a specific temperature. The results showed that “k” at 40, 50, 60, 70, 8...
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BACKGROUND/AIMS Polyethylene glycol (PEG)-based gut lavage solutions are safe and effective, but require the intake of large volumes of fluid. The use of 2 L PEG plus 45 mL sodium phosphate (PEG2 plus NaP) was compared with 4 L PEG (PEG4) for bowel cleansing before colonoscopy. METHODS Patients were randomized to the PEG2 plus NaP group or PEG4 group between January 1, 2009 and March 31, 2010...
متن کاملPrecipitation of DNA by polyethylene glycol and ethanol.
The use of polyethylene glycol (PEG) for precipitation of DNA has been described in the literature (1-6) . We present here conditions for precipitation of DNA by PEG that give improved recoveries of DNA so that precipitation by PEG is comparable to that by ethanol, in terms of recovery, over a wide range of DNA concentrations. The problem of precipitation of lowmolecular-weight DNA fragments by...
متن کاملPurification and characterization of polyethylene glycol dehydrogenase involved in the bacterial metabolism of polyethylene glycol.
Polyethylene glycol (PEG) dehydrogenase in crude extracts of a PEG 20,000-utilizing mixed culture was purified 24 times by precipitation with ammonium sulfate, solubilization with laurylbetaine, and chromatography with diethylamino-ethyl-cellulose, hydroxylapatite, and Sephadex G-200. The purified enzyme was confirmed to be homogeneous by sodium dodecyl sulfate-polyacrylamide gel electrophoresi...
متن کاملPolyethylene glycol in chronic constipation
Apostolos Mantides MD, Head, Department of Gastroenterology, Athens Naval and Veterans Hospital, Tel & fax: ++3
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ژورنال
عنوان ژورنال: Asian Journal of Chemistry
سال: 2013
ISSN: 0970-7077,0975-427X
DOI: 10.14233/ajchem.2013.13517