Results 31 to 40 of about 7,963 (285)

A new way of valorizing biomaterials: the use of sunflower protein for 1 a-tocopherol microencapsulation [PDF]

open access: yes, 2013
Biopolymer based microparticles were efficiently prepared from sunflower protein (SP) wall material and a-tocopherol (T) active core using a spray-drying technique. Protein enzymatic hydrolysis and/or N-acylation were carried out to make some structural
A. Nesterenko   +64 more
core   +4 more sources

Asymmetrical Flow Field-Flow Fractionation Coupled to ICP-MS for Characterization of Trace Metal Species in the Environment from Macromolecular to Nano-Assemblage Forms: Current Challenges for Quantification

open access: yesCHIMIA, 2022
Asymmetrical flow field-flow fractionation (AF4) is a powerful technique employed for the separation of macromolecules, nanoparticles, and their assemblages according to their hydrodynamic behavior.
Isabelle A. M. Worms, Vera I. Slaveykova
doaj   +1 more source

Characterization of aggregates of surface modified fullerenes by asymmetrical flow field-flow fractionation with multi-angle light scattering detection [PDF]

open access: yes, 2016
Fullerenes are carbon nanoparticles with widespread biomedical, commercial and industrial applications. Attributes such as their tendency to aggregate and aggregate size and shape impact their ability to be transported into and through the environment ...
Astefanei, Alina   +6 more
core   +1 more source

A general perspective of the characterization and quantification of nanoparticles: Imaging, spectroscopic, and separation techniques [PDF]

open access: yes, 2014
This article gives an overview of the different techniques used to identify, characterize, and quantify engineered nanoparticles (ENPs). The state-of-the-art of the field is summarized, and the different characterization techniques have been grouped ...
Anderson de la LLana, S.   +10 more
core   +3 more sources

Comparison of Miniaturized and Conventional Asymmetrical Flow Field-Flow Fractionation (AF4) Channels for Nanoparticle Separations

open access: yesSeparations, 2017
The performance of a miniaturized channel for the separation of polymer and metal nanoparticles (NP) using Asymmetrical Flow Field-Flow Fractionation (AF4) was investigated and compared with a conventional AF4 system.
Zengchao You   +2 more
doaj   +1 more source

Size and optical properties of dissolved organic matter in large boreal rivers during mixing: Implications for carbon transport and source discrimination

open access: yesJournal of Hydrology: Regional Studies, 2022
Study region: The lower Athabasca River (LAR), Northern Alberta, Canada Study focus: The functionality of dissolved organic matter (DOM) in natural waters largely depends upon its size and composition.
Jin-Ping Xue   +7 more
doaj   +1 more source

Quality control and purification of ready-to-use conjugated gold nanoparticles to ensure effectiveness in biosensing

open access: yesFrontiers in Sensors, 2022
Introduction: Gold nanoparticles (AuNPs) and their conjugates are used for many applications in the field of sensors. Literature lacks procedures able to separate, purify and characterize these species in native conditions without altering them while ...
Junjie Wang   +9 more
doaj   +1 more source

Revision of the calibration experiment in asymmetrical flow field-flow fractionation

open access: yesJournal of Chromatography A, 2021
Asymmetrical flow field-flow fractionation is a versatile chromatographic fractionation method. In combination with at least one detection technique it is used for size-based separation of colloids, biomolecules and polymers. Although often used as pure separation method, a well-elaborated theory is available that allows precise quantification of the ...
Häusele, Benedikt   +2 more
openaire   +3 more sources

Terminology of separation methods (IUPAC Recommendations 2017) [PDF]

open access: yes, 2017
This article has an erratum. Doi: 10.1515/pac-2021-1006Recommendations are given concerning the terminology of methods of separation in analytical chemistry, including chromatography, electromigration techniques, and field-flow fractionation and related ...
Fedotov, Petr S.   +5 more
core   +2 more sources

Analysis and purification of ssRNA and dsRNA molecules using asymmetrical flow field flow fractionation [PDF]

open access: yes, 2022
Robust RNA purification and analysis methods are required to support the development of RNA vaccines and therapeutics as well as RNA interference-based crop protection solutions.
Coustau, Christine   +5 more
core   +1 more source

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