Results 71 to 80 of about 35,116 (294)

Characterization of seed nuclei in glucagon aggregation using light scattering methods and field-flow fractionation

open access: yesJournal of Biological Engineering, 2008
Background Glucagon is a peptide hormone with many uses as a therapeutic agent, including the emergency treatment of hypoglycemia. Physical instability of glucagon in solution leads to problems with the manufacture, formulation, and delivery of this ...
Kirsch Lee E   +3 more
doaj   +1 more source

Deterministic ratchets for suspension fractionation

open access: yes, 2010
Driven by the current insights in sustainability and technological development in biorefining natural renewable resources, the food industry has taken an interest in fractionation of agrofood materials, like milk and cereal crops.
Kulrattanarak, T.
core  

Efficient algorithms for asymmetric flow field flow fractionation

open access: yes, 2022
This thesis is devoted to the modeling and simulation of Asymmetric Flow Field Flow Fractionation, which is a technique for separating particles of submicron scale.
Nagapetyan, T.
core  

Application of microstructured membranes for increasing retention, selectivity and resolution in asymmetrical flow field-flow fractionation [PDF]

open access: yes, 2019
In the present proof-of-concept study, we demonstrate that retention time, selectivity and resolution can be increased in asymmetrical flow field-flow fractionation (AF4) by introducing microstructured ultrafiltration membranes.
Stamatialis, Dimitrios   +3 more
core   +1 more source

Sudden anaerobization in Amphibacillus xylanus increases intracellular labile ferrous iron and inhibits cell growth

open access: yesFEBS Open Bio, EarlyView.
Abruptly changing from aerobic to anaerobic conditions (sudden anaerobization) induced growth inhibition and a significant increase in intracellular labile ferrous iron in the aerotolerant anaerobe Amphibacillus xylanus. We found that free flavins mediate efficient electron transfer from NADH to ferric iron under anaerobic conditions, suggesting that ...
Shinya Kimata   +13 more
wiley   +1 more source

Value of MRI Outcomes for Preventive and Early‐Stage Trials in Spinocerebellar Ataxias 1 and 3

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To examine the value of MRI outcomes as endpoints for preventive and early‐stage trials of two polyglutamine spinocerebellar ataxias (SCAs). Methods A cohort of 100 participants (23 SCA1, 63 SCA3, median Scale for the Assessment and Rating of Ataxia (SARA) score = 5, 42% preataxic, and 14 gene‐negative controls) was scanned at 3T up ...
Thiago J. R. Rezende   +26 more
wiley   +1 more source

Hollow-fiber flow field-flow fractionation: A pipeline to scale down separation and enhance detection of proteins and cells

open access: yes, 2012
Commercial flow field-flow fractionation (FlFFF) employs macro-scale, flat-type channels. The idea of hollow-fiber (HF) membranes as tubular, micro-column channels for FlFFF (HF FlFFF or, more shortly, HF5) dates back to 1974, with fundamentals on HF5 ...
Rambaldi D. C.   +4 more
core   +1 more source

Normal‐Appearing White Matter Injury Mediates Chronic Deep Venous Hypoxia and Disease Progression in Multiple Sclerosis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore how cerebral hypoxia and Normal‐Appearing White Matter (NAWM) integrity affect MS lesion burden and clinical course. Methods Seventy‐nine MS patients, including 13 clinically isolated syndrome (CIS) patients and 66 relapsing–remitting multiple sclerosis (RRMS) patients, and 44 healthy controls (HCs) were recruited from ...
Xinli Wang   +8 more
wiley   +1 more source

Investigation of tin adsorption on silica nanoparticles by using flow field-flow fractionation with offline inductively coupled plasma mass spectrometry

open access: yesJournal of Analytical Science and Technology, 2018
Flow field-flow fractionation (Fl-FFF) for silica nanoparticles with offline inductively coupled plasma mass spectrometry (ICP-MS) was applied to investigate the adsorption behavior of tin onto silica nanoparticles.
Novy Lailatuz Zulfah   +1 more
doaj   +1 more source

Cyclical magnetic field flow fractionation

open access: yesJournal of Applied Physics, 2012
In this study, a new magnetic field flow fractionation (FFF) system was designed and modeled by using finite element simulations. Other than current magnetic FFF systems, which use static magnetic fields, our system uses cyclical magnetic fields. Results of the simulations show that our cyclical magnetic FFF system can be used effectively for the ...
Tasci, T. O.   +2 more
openaire   +2 more sources

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