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Rhamnolipid Morphology and Phenanthrene Solubility at Different pH Values

^a Dep. of Environmental Science and Engineering, Gwangju Inst. of Science and Technology, Gwangju, Korea, 500-712
^b School of Life Sciences and Biotechnology, Korea Univ., Seoul, Korea, 136-701
^c present address: Environmental Assessment Group, Korea Environment Inst., 613-2, Bulgwang-Dong, Eunpyeong-Gu, Seoul, Korea

View larger version (12K): [in this window] [in a new window]   Fig. 1. The effect of pH on the phenanthrene solubility with rhamnolipid solutions in the sand–water system. Symbols equal the average of triplicate vials. Error bars represent ±1 SD.

View larger version (87K): [in this window] [in a new window]   Fig. 2. Representative cryo-transmission electron micrographs of the morphology of rhamnolipid in solution at (a) and (b) pH 4, (c) and (d) pH 5, (e) and (f) pH 6, and (g) and (h) pH 7. L, multilamellar vesicle; M, micelle; T, tubule; V, vesicle. Bar = 200 nm.