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Fragmentation of deprotonated polyethylene glycols, [PEG – H] –
Rapid Communications in Mass Spectrometry, 2013RATIONALE Polyethylene glycols (PEGs) are soluble molecules utilized in a wide range of applications. Mass spectrometry and fragmentation patterns of positively charged PEG oligomers are well‐known, but decomposition mechanisms of the deprotonated ions have not been studied.
Thomas H, Hester +2 more
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Modelling of intestinal permeability in man to polyethylene glycols (PEG 400 and PEG 1000)
Acta Physiologica Scandinavica, 1985The intestinal permeability barrier was evaluated in four healthy individuals by the 6 h urinary recovery of a mixture of different‐sized polyethylene glycols (PEG 400 and PEG 1000) after a liquid meal of probe molecules. The mixture of PEGs contained around 25 different PEG polymers, ranging from about 194 to 1294 dalton in size.
T, Sundqvist, K E, Magnusson
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Exosome isolation based on polyethylene glycol (PEG): a review
Molecular and Cellular BiochemistryExosome acts as an outstanding biomarker for ongoing studies, diagnosis and prognosis of multiples diseases. Therefore, the call for economically and efficiently isolating a large number of exosomes is an active area of investigation. However, to date, the challenges including complex isolated procedure, uneconomical equipment, low protein content and ...
Qionglian, Huang +4 more
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Protoplast Fusion Induced by Polyethylene Glycol (PEG)
1982The fusion of protoplasts from different plants to form somatic hybrid cells and the subsequent regeneration of plants from the callus tissue produced from the proliferation of the fusion product was an extremely important achievement. The ultimate aim of this work is to produce hybrids which cannot be produced by normal sexual means. However, isolated
Jakob Reinert, Michael Magson Yeoman
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Purification of IgG by Precipitation with Polyethylene Glycol (PEG)
1996PEG precipitation works well for IgM, but is less efficient for IgG; salt precipitation methods are usually recommended for IgG. PEG precipitation may be preferred in multistep purifications that use ion-exchange columns, because the ionic strength of the Ig is not altered.
Mark Page, Robin Thorpe
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Applied Microbiology and Biotechnology, 2007
Two bacterial consortia growing on a random copolymer of ethylene glycol and propylene glycol units were obtained by enrichment cultures from various microbial samples. Six major strains included in both consortia were purified and identified as Sphingomonads, Pseudomonas sp. and Stenotrophomonas maltophilia. Three of them (Sphingobium sp. strain EK-1,
Xiaoping, Hu +4 more
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Two bacterial consortia growing on a random copolymer of ethylene glycol and propylene glycol units were obtained by enrichment cultures from various microbial samples. Six major strains included in both consortia were purified and identified as Sphingomonads, Pseudomonas sp. and Stenotrophomonas maltophilia. Three of them (Sphingobium sp. strain EK-1,
Xiaoping, Hu +4 more
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Synthesis of Polyethylene Glycol (PEG) Derivatives and PEGylated−Peptide Biopolymer Conjugates
Biomacromolecules, 2003We synthesized a library of 50 poly(ethylene glycol) (PEG) derivatives to expand the extent of conjugation with biologically active molecules (biopolymers, peptides, drugs, etc.) and biomaterial substrates. The formation of PEG derivatives was confirmed with HPLC, (1)H and (13)C NMR.
Li, Jing, Kao, W. John
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Polyethylene Glycol (PEG)-Mediated Transformation in Filamentous Fungal Pathogens
2011Genetic transformation is an essential tool for the modern study of gene function and the genetic improvement of an organism. The genetic transformation of many fungal species is well established and can be carried out by utilizing different transformation methods including electroporation, Agrobacterium, biolistics, or polyethylene glycol (PEG ...
Zhaohui, Liu, Timothy L, Friesen
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Polyethylene glycol (PEG) derived carbon dots: Preparation and applications
Applied Materials Today, 2020Roger Leblanc, Zhili Peng, Yiqun Zhou
exaly