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. Author manuscript; available in PMC: 2017 Feb 15.
Published in final edited form as: Langmuir. 2016 Mar 1;32(10):2283–2290. doi: 10.1021/acs.langmuir.5b03946

Figure 5.

Figure 5

Mechanistic hypothesis for the formation of organic NFs from the f-SHS@Guest complexes: (a) For small/rigid guests like RhB, the guest diffuses throughout the porous f-SHS by osmotic gradient until it fills the gel-like interior. Upon removing the solvent (e.g., 36 or 65 °C), the concentration of guest increases, which lead to enhanced noncovalent interactions resulting in the spiky NFs from f-SHS@RhB. This seems to promote a crystallization growth perpendicular to the particle’s surface leading to the formation of spiky-petalled NFs. (b) Larger or more flexible guests like DsR are concentrated on or near the surface of the f-SHS favoring the formation of the wide-petalled NF surface in f-SHS@DsR.