^Cite error: The named reference tree was invoked but never defined (see the help page).
^DeSimone, J. M.; Cooper, A. I.; Londono, J. D.; Wignall, G.; McClain, J. B.; Samulski, E. T.; Lin, J. S.; Dobrynin, A.; Rubinstein, M.; Burke, A. L. C.; Fréchet, J. M. J. (1997). "Extraction of a hydrophilic compound from water into liquid CO2 using dendritic surfactants". Nature. 389 (6649): 368–371. Bibcode:1997Natur.389..368C. doi:10.1038/38706. S2CID4366102.