This article demonstrates the efficacy of a foam harvester that combines dispersed air flotation with foam fractionation to allow harvesting, concentration, and physical separation of particles in suspension.
This paper will review the application of membranes from microporous, through ultrafiltration to nanofiltration/reverse osmosis types using actual examples of systems designed for cell harvesting, protein concentration, small molecule processing, virus removal and sterile filtration.
Harvesting and concentration properties of charged particles depend on the pH and ionic strength of the solution.
At 48 hrs post-transfection, the VLP-containing cell supernatants (SUP) were harvested for concentration and purification of the VLPs.
Harvesting increased concentrations of nitrate-N and organic-N, but not ammonium-N.
After 15 h, the supernatants were harvested and concentrations of TNFα, IL-10 and IL-6 were determined using the Cytometric Bead Array (Becton Dickinson, Heidelberg, Germany) according to the instructions of the vendor.
After incubation, plasma was harvested and concentrations of interferon-γ were measured by ELISA.
Supernatants were harvested and concentrations of IFN-γ, TNF-α, IL-4, IL-5, IL-6 and IL-17 were measured by sandwich ELISAs (eBiosciences, Frankfurt, Germany) using recombinant cytokines (Peprotech, Hamburg, Germany) as standard.
Energy harvesting from a concentration gradient by reverse electrodialysis in anodic alumina nanopores was numerically investigated.
The fungus was grown for 3 days on 20% V8 juice liquid medium (Miller 1955) with shaking (120 rpm) at 23 °C, microconidia were harvested and the concentration was adjusted to 106 spores ml−1.
Fig. 2 First, second, and third harvests—shoot P concentration (mg kg−1 dry weight) for RP dotted bar, P gray shaded bar, RP/Trp cross-lined bar and RP/ HA Trp) black shaded bar.
