Buffer Standards for the Physiological pH of Zwitterionic Compounds, MOBS and TABS from 5 to 55�C

Novel antifouling oligo(ethylene glycol) methacrylate particles via surfactant-free emulsion polymerization

“…6 presents the equilibrium BSA adsorption capacities of cross-linked PMMA and PEGEEM particles at pH 5.0 and 7.0. These pH values were chosen considering the isoelectric point of BSA (pI = 5.0) [6,43,44] and the physiological pH [45]. The equilibrium BSA adsorption capacities of PMMA particles are higher at pH 5.0 compared with pH 7.0.…”

Thermoresponsive oligo(ethylene glycol) methacrylate colloids with antifouling surface properties

“…Figure 7(A) shows the equilibrium BSA adsorption capacities of crosslinked PEGEEM and PNIPAM colloids in pH 5.0 and 7.4 buffers at 20 °C. The pH values correspond to the isoelectric point of BSA (pI = 5.0),90–92 and the physiological pH,93 respectively. The BSA adsorption for PNIPAM colloids is higher at pH 5.0 where BSA does not have a net electrical charge.…”

“…NIPAM-based colloids were chosen as a basis of comparison because of the well-documented BSA adsorption trends for NIPAM-containing microgels [84][85][86] and hydrogels 87 as well as NIPAM-modified surfaces. 88,89 5.0), [90][91][92] and the physiological pH, 93 respectively. The BSA adsorption for PNIPAM colloids is higher at pH 5.0 where BSA does not have a net electrical charge.…”

Buffer Standards for pH Measurement of N-(2-Hydroxyethyl)piperazine-N′-2-ethanesulfonic Acid (HEPES) for I=0.16 mol⋅kg−1 from 5 to 55 °C

“…The MOPSO buffers have been certified by the National Institute of Standards and Technology (NIST) as primary reference standard. Roy et al [8] published results for p K 2 and pH for 3-( N -morpholino)propanesulfonic acid (MOPS); 4- N -(morpholino)butanesulfonic acid (MOBS) [9]; and Bis-[(2-hydroxyethyl)amino]acetic acid (BICINE) [10]. The pH of these solutions nearly matches that of the common biological media.…”