This report focus on phase behavior of polyethylene glycol (PEG)4000/ phosphate/ guanidine hydrochloride/ water system at different guanidine hydrochloride concentrations and pH. The binodal of the systems was displaced toward higher concentrations of the components with increasing guanidine hydrochloride concentrations. The partition coefficient of guanidine hydrochloride was near unity and in...

Mango peel is a good source of protease but remains an industrial waste. This study focuses on the optimization of polyethylene glycol (PEG)/dextran-based aqueous two-phase system (ATPS) to purify serine protease from mango peel. The activity of serine protease in different phase systems was studied and then the possible relationship between the purification variables, namely polyethylene glyco...

In this work, photovoltachromic cells (PVCCs) are fabricated using a solvent-free polyethylene glycol (PEG)-titanium hybrid polymer electrolyte. With appropriate addition of 1,2-dimethyl-3-propylimidazolium iodide in the electrolyte, the range of tunable colored-state transmittance of the PVCC is enlarged due to an improved fill factor. A transmittance modulation larger than 40% can be maintain...

The synthesis o f Substance P (SP) bound at the C-terminal methionine to polyethylene glycol monomethyl ether (M -PEG ) is described. SP-PEG-M is obtained in good yield by the liquidphase peptide synthesis. Gel permeation chromatography reveals that aggregated forms of the PEG-bound peptides are absent in CHC13. CD and IR spectra point to a /3-turn located at the Nterminal part o f SP-PEG-M . I...

Background: Colonoscopy is the preferred procedure for diagnosis of large-bowel diseases in dogs. Polyethylene glycol (PEG) is the most commonly used laxative for colonic cleansing. Senna has been used in traditional medicine as a laxative and an aid to treat constipation. OBJECTIVES: The aim of this study was to evaluate the safety of senna as an alternative or adjunct to polyethylene glycol s...

AIM Although polyethylene glycol (PEG) is a neutral, biocompatible hydrophilic polymer recognized for its lack of interaction with biological barrier, its neurotoxicity has not been clearly identified in neurosurgery. This study is constructed to evaluate the possible neurotoxicity of a PEG hydrogel dural sealant. MATERIAL AND METHODS After a burrhole was opened in the left pa...

Polyethylene glycol (PEG) induces rapid fusion of LM cells. Membrane fusion, as detected by formation of pentalaminar membrane arrays, occurs as early as 1 min after PEG treatment. The entire cell surface arrears to be capable of fusion since fusion occurs in regions where pseudopodia make contact with each other or with a neighbouring cell body and also in areas where cells are in contact alon...

This study presents detection of free polyethylene glycol (PEG) and conjugated PEG in western blot assay using anti-PEG rabbit monoclonals specific to methoxy group of PEG. In a chromogenic western blot assay, detection limit (DL) for free and PEGylated protein was 2.5 μg and 0.5 μg, respectively. Using chemiluminescence substrate, DL of PEGylated granulocyte colony stimulating factor (GCSF) wa...

A novel strategy was developed to synthesize polymer-coated metal nanoparticles (NPs) through reduction of metal cations with 3,4-dihydroxyphenylalanine (DOPA)-containing polyethylene glycol (PEG) polymers. Catechol redox chemistry was used to both synthesize metal NPs and simultaneously form a cross-linked shell of PEG polymers on their surfaces. DOPA reduced gold and silver cations into neutr...

This report focus on phase behavior of polyethylene glycol (PEG)4000/ phosphate/ guanidine hydrochloride/ water system at different guanidine hydrochloride concentrations and pH. The binodal of the systems was displaced toward higher concentrations of the components with increasing guanidine hydrochloride concentrations. The partition coefficient of guanidine hydrochloride was near unity and in...