Results 21 to 30 of about 71,926 (343)

Characterization of hemodialysis membranes by inverse size exclusion chromatography [PDF]

open access: yes, 1995
Inverse size exclusion chromatography (i-SEC) was used to characterize three different cellulosic hollow fiber hemodialysis membranes, i.e. low-flux cuprophan and hemophan and high-flux RC-HP400A.
Bargeman, Derk   +5 more
core   +3 more sources

Isolation and characterisation of metallothionein from the clam Ruditapes decussatus [PDF]

open access: yes, 2003
Metallothioneins (MT) were obtained after purification from metal-exposed clams (Ruditapes decussatus) using gel-permeation and ion-exchange chromatography.
Bebianno   +42 more
core   +2 more sources

Purification, Structural Characterization, and Biological Activity of Polysaccharides from Lentinus velutinus

open access: yesMycobiology, 2020
A polysaccharide (LVP) was purified from fruiting body of Lentinus velutinus by ethanol precipitation fractionation and DEAE and Sephadex G-100 column chromatography. The yield of purified polysaccharide was 0.025%.
Wascharin Udchumpisai   +1 more
doaj   +1 more source

Well-defined side-chain liquid-crystalline polysiloxanes [PDF]

open access: yes, 1996
A route to well-defined side-chain liquid-crystalline polysiloxanes (ratio of weight-to number-average molar masses Mw/Mn < 1.2 is reported. Anionic ring-opening polymerization of pentamethylvinylcyclotrisiloxane yielded a poly(dimethylsiloxane-co ...
Hempenius, Mark A.   +2 more
core   +2 more sources

Stand der Forschung an der photographischen Gelatine

open access: yesCHIMIA, 1976
It was the aim of the present work to characterize the gelatin by molecular parameters and investigate the elastically active elements of gelatin gels.
Ivan Tomka
doaj   +1 more source

Physico-chemical and structural characterization of mucilage isolated from seeds of Diospyros melonoxylon Roxb.

open access: yesBrazilian Journal of Pharmaceutical Sciences, 2014
Mucilage was isolated from the seeds of Diospyros melonoxylonRoxb., a plant growing naturally in the forests of India. Various physico-chemical methods like particle analysis, scanning electron microscopy, differential scanning calorimetry, differential ...
Sudarshan Singh, Sunil B. Bothara
doaj   +1 more source

Caracterização química dos géis produzidos pelas bactérias diazotróficas Rhizobium tropici e Mesorhizobium sp.

open access: yesQuímica Nova, 2012
The exopolysaccharides with characteristics of gel produced by Rhizobium tropici (EPS RT) and Mesorhizobium sp (EPS MR) are acidic heteropolysaccharide composed mainly of glucose and galactose in a molar ratio of 4:1 and 5:1 respectively, with traces of ...
Nilson Kobori Monteiro   +6 more
doaj   +1 more source

Green Production of Anionic Surfactant Obtained from Pea Protein [PDF]

open access: yes, 2011
A pea protein isolate was hydrolyzed by a double enzyme treatment method in order to obtain short peptide sequences used as raw materials to produce lipopeptides-based surfactants.
A Clemente   +40 more
core   +2 more sources

Chemical Synthesis of Sulfated Yeast (Saccharomyces cerevisiae) Glucans and Their In Vivo Antioxidant Activity

open access: yesMolecules, 2017
The effects of sulfation of yeast glucans was optimized using response surface methodology. The degree of sulfation was evaluated from 0.11 to 0.75 using ion-chromatography. The structural characteristics of SYG (sulfation of yeast glucans) with a DS = 0.
Hua Zhang   +7 more
doaj   +1 more source

Study on the Rheological Properties of Formic Acid Lignin Modified Asphalt

open access: yesBuildings, 2023
Lignin is a major waste product of biofuel and paper industries that can be used as a modifier to improve the relevant properties of asphalt. To investigate the effect of lignin and formic acid lignin wood incorporations into asphalt and the effect on ...
Meng Cai, Chao Peng, Cheng Cheng
doaj   +1 more source

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