Results 31 to 40 of about 287,947 (285)

Pyrolysis of brominated feedstock plastic in a fluidised bed reactor [PDF]

open access: yes, 2006
Fire retarded high impact polystyrene has been pyrolysed using a fluidised bed reactor with a sand bed. The yield and composition of the products have been investigated in relation to fluidised bed temperature.
Bhaskar   +10 more
core   +1 more source

ABA triblock copolymers: from controlled synthesis to controlled function [PDF]

open access: yes, 2003
The ABA amphiphilic block copolymers, poly(hydroxyethyl methacrylate-hlock-methylphenylsilane-block-hydroxyethyl methacrylate) (PHEMA-PMPS-PHEMA) and poly[oligo(ethylene glycol) methyl ether methacrylate-block-methylphenylsilane-block-oligo(ethylene ...
Allen   +71 more
core   +6 more sources

Separation of whey proteins for chromatography liquid

open access: yesScientia Agropecuaria, 2010
This paper describes and compares three chromatographic methods for the analysis and quantification of most abundant proteins in cheese whey, -lactalbumin and -lactoglobulin. The methods were: Reverse-phase high performance liquid chromatography, anion
Abraham D. Giraldo Zuñiga   +3 more
doaj   +1 more source

Framework for rapid comparison of extracellular vesicle isolation methods

open access: yeseLife, 2021
Extracellular vesicles (EVs) are released by all cells into biofluids and hold great promise as reservoirs of disease biomarkers. One of the main challenges in studying EVs is a lack of methods to quantify EVs that are sensitive enough and can ...
Dmitry Ter-Ovanesyan   +6 more
doaj   +1 more source

Iron-based ferritin nanocore as a contrast agent [PDF]

open access: yes, 2010
Self-assembling protein cages have been exploited as templates for nanoparticle synthesis. The ferritin molecule, a protein cage present in most living systems, stores excess soluble ferrous iron in the form of an insoluble ferric complex within its ...
Johnson, Eric   +4 more
core   +2 more sources

Molecular Dispersion of Starch as a Crucial Parameter during Size-Exclusion Chromatography

open access: yesFoods, 2020
Starch, α-polyglucan consisting of a large number of anhydroglucose units joined by α-1,4- and α-1,6-glycosidic bonds, seems to be characterized by a simple structure when compared to other natural polymers.
Artur Szwengiel, Piotr Kubiak
doaj   +1 more source

Isolation of Extracellular Vesicles from Human Follicular Fluid: Size-Exclusion Chromatography versus Ultracentrifugation

open access: yesBiomolecules, 2023
Follicular fluid (FF) is the microenvironment where a growing oocyte develops. Intrafollicular communication ensures oocyte competence and is carried out through paracrine signaling, the exchange of molecules via gap junctions, and the trafficking of ...
Maria Soares   +7 more
doaj   +1 more source

Amylose Inter-Chain Entanglement and Inter-Chain Overlap Impact Rice Quality

open access: yesFoods, 2022
Retrogradation of cooked rice happens in two ways: one is by the formation of ordered structures, and the other is through intra- and inter-chain entanglement and inter-chain overlap, which in turn are affected by the amylose chain-length distribution ...
Changfeng Li   +6 more
doaj   +1 more source

The purification and characterisation of novel dipeptidyl peptidase IV-like activity from bovine serum [PDF]

open access: yes, 2004
The discovery of a potentially novel proline-specific peptidase from bovine serum is presented which is capable of cleaving the dipeptidyl peptidase IV (DPIV) substrate Gly-Pro-MCA.
Abbott   +31 more
core   +1 more source

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

open access: yesFEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva   +10 more
wiley   +1 more source

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