Results 21 to 30 of about 1,899 (278)

Assessment of the Effects of Structural Modification of Gastrodia elata Polysaccharide on Anti-Breast Cancer Activity Using Asymmetrical Flow Field-Flow Fractionation [PDF]

open access: yesMolecules, 2023
Gastrodia elata (“Tian Ma” in Chinese) is used as a food and medical ingredient in traditional Chinese medicine. In this study, to enhance the anti-breast cancer activity of Gastrodia elata polysaccharide (GEP), GEPs were modified via sulfidation (SGEP ...
Xiaoying Liu   +7 more
doaj   +2 more sources

Asymmetrical Flow Field-Flow Fractionation Methods for Quantitative Determination and Size Characterization of Thiols and for Mercury Size Speciation Analysis in Organic Matter-Rich Natural Waters [PDF]

open access: yesFrontiers in Chemistry, 2022
Asymmetrical flow field-flow fractionation (AF4) efficiently separates various macromolecules and nano-components of natural waters according to their hydrodynamic sizes.
Isabelle A. M. Worms   +4 more
doaj   +2 more sources

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

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   +2 more sources

Revision of the calibration experiment in asymmetrical flow field-flow fractionation [PDF]

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   +4 more sources

Fast and Purification-Free Characterization of Bio-Nanoparticles in Biological Media by Electrical Asymmetrical Flow Field-Flow Fractionation Hyphenated with Multi-Angle Light Scattering and Nanoparticle Tracking Analysis Detection [PDF]

open access: yesMolecules, 2020
Accurate physico-chemical characterization of exosomes and liposomes in biological media is challenging due to the inherent complexity of the sample matrix.
Roland Drexel   +5 more
doaj   +2 more sources

Characterization of Silver Nanoparticles under Environmentally Relevant Conditions Using Asymmetrical Flow Field-Flow Fractionation (AF4). [PDF]

open access: yesPLoS ONE, 2015
The development of methods to monitor manufactured nanomaterials in the environment is one of the crucial areas for the assessment of their risk. More specifically, particle size analysis is a key element, because many properties of nanomaterial are size
Min-Hee Jang, Seungho Lee, Yu Sik Hwang
doaj   +2 more sources

Characterization of binding between model protein GA-Z and human serum albumin using asymmetrical flow field-flow fractionation and small angle X-ray scattering. [PDF]

open access: yesPLoS ONE, 2020
Protein-based drugs often require targeted drug delivery for optimal therapy. A successful strategy to increase the circulation time of the protein in the blood is to link the therapeutic protein with an albumin-binding domain.
Jaeyeong Choi   +7 more
doaj   +2 more sources

Recovery, overloading, and protein interactions in asymmetrical flow field-flow fractionation. [PDF]

open access: yesAnal Bioanal Chem, 2019
In asymmetrical flow field-flow fractionation (AF4), similar to other separation techniques, mass recovery and overloading require special attention in order to obtain quantitative results. We conducted a systematic study with five globular proteins of different molecular weight (36.7-669 kDa) and isoelectric point (4.0-6.5), and ultrafiltration ...
Marioli M, Kok WT.
europepmc   +6 more sources

Asymmetrical flow field-flow fractionation and multi-angle laser light scattering: A new analytical approach for the characterisation of insect protein aggregation/polymerisation after heat treatment of Tenebrio molitor larvae [PDF]

open access: yesCurrent Research in Food Science
Understanding the structural modifications of insect proteins during the transformation processes used for extract preparation is essential for optimising their functionalities and obtaining high added-value proteins.
Ariel Anouma   +3 more
doaj   +2 more sources

Asymmetrical Flow Field-Flow Fractionation on Virus and Virus-Like Particle Applications. [PDF]

open access: yesMicroorganisms, 2019
Asymmetrical flow field-flow fractionation (AF4) separates sample components based on their sizes in the absence of a stationary phase. It is well suited for high molecular weight samples such as virus-sized particles. The AF4 experiment can potentially separate molecules within a broad size range (~103−109 Da; particle diameter from 2 nm to 0.5−1 μm).
Eskelin K, Poranen MM, Oksanen HM.
europepmc   +5 more sources

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