n-Octyl (Thio)glycosides as Potential Cryoprotectants: Glass Transition Behaviour, Membrane Permeability, and Ice Recrystallization Inhibition Studies*

Rekha Raju, Theresa Merl, Madeleine K. Adam, Emiliyan Staykov, Robert N. Ben, Gary Bryant, Brendan L. Wilkinson
2019 Australian journal of chemistry (Print)  
A series of eight n-octyl (thio)glycosides (1a, b-4a, b) with D-glucose or D-galactose-configured head groups and varying anomeric configuration were synthesized and evaluated for glass transition behaviour, membrane permeability, and ice recrystallization inhibition (IRI) activity. Of these, n-octyl b-D-glucopyranoside (2b) exhibited a high glass transition temperatures (T g ), both as a neat sample and 20 wt-% aqueous solution. Membrane permeability studies of this compound revealed cellular
more » ... ptake to concentrations relevant to the inhibition of intracellular ice formation, thus presenting a promising lead candidate for further biophysical and cryopreservation studies. Compounds were also evaluated as ice recrystallization inhibitors; however, no detectable activity was observed for the newly tested compounds.
doi:10.1071/ch19159 fatcat:rq6zubq4lvbm5dh4e4756p25ji