3 research outputs found
Influence of Different Phase-Forming Parameters on the Phase Diagram of Several PEG–Salt Aqueous Two-Phase Systems
Different polyÂ(ethylene glycol) (PEG)
+ potassium phosphate or
sodium citrate aqueous two-phase systems (ATPS) were investigated
at 23 °C, containing different PEG types (molecular weights 2000
g·mol<sup>–1</sup> to 8000 g·mol<sup>–1</sup>) and pH values (5 to 9). Furthermore, the effect of the added salt
NaCl (0 wt % to 8 wt %) on the PEG + potassium phosphate/sodium citrate
ATPS was studied at 23 °C. The experimental binodal data were
successfully correlated with the empirical nonlinear equation proposed
by Hu. The effects of increasing molecular weight of PEG, pH, NaCl,
and salt type on the obtained binodal curves were determined, resulting
in a binodal curve shift toward the origin. Thus, an expansion of
the two-phase region occurred by increasing molecular weight of the
PEG, pH, and NaCl and due to the Gibbs free energy of hydration of
ions of phosphate. Furthermore, the phase equilibrium compositions,
tie-line lengths, slopes of tie-lines, critical points, and effective
excluded volumes were obtained for all studied systems. Finally, the
experimental tie-line compositions were successfully correlated by
using the Othmer–Tobias and Bancroft equations, and linear
dependency was confirmed
Supplemental_Material_Austerjostetal.pdf – Supplemental material for Introducing a Virtual Assistant to the Lab: A Voice User Interface for the Intuitive Control of Laboratory Instruments
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Supplemental material for Comparison of different three dimensional-printed resorbable materials: <i>In vitro</i> biocompatibility, <i>In vitro</i> degradation rate, and cell differentiation support
<p>Supplemental material for Comparison of different three dimensional-printed resorbable materials: <i>In vitro</i> biocompatibility, <i>In vitro</i> degradation rate, and cell differentiation support by Lukas Raddatz, Marline Kirsch, Dominik Geier, Jörn Schaeske, Kevin Acreman, Rafael Gentsch, Scott Jones, Andreas Karau, Tommy Washington, Meike Stiesch, Thomas Becker, Sascha Beutel, Thomas Scheper and Antonina Lavrentieva in Journal of Biomaterials Applications</p