Title: REAL TIME VISUALIZATION OF SURFACTANT EFFECTS ON COLLOIDAL SELF-ASSEMBLY.
Authors: ZHAO, Q.; NG, E.; KANG, H. K.; YIP, C. H.; HARTONO, M. R.; WONG, C. C.
Abstract: Patterned substrates, coupled with surfactant addition, offer a way to exercise more control in the convective self-assembly of colloidal nanospheres. In this work, we investigated the surfactant effects on dynamic colloidal self-assembly during evaporation in a sessile drop. The real time video monitoring revealed that the surfactant plays a dominating role to determine the wetting angle of the colloidal suspension in a sessile drop. Meanwhile, surfactant also had great influence on the cluster formation during assembly process and the final lattice structure.
Subjects: MOLECULAR self-assembly; COLLOIDS; SUBSTRATES (Materials science); SURFACE active agents; NANOSTRUCTURED materials; EVAPORATION (Chemistry); LATTICE theory; WETTING
Publication: International Journal of Nanoscience, 2010, Vol 9, Issue 3, p113
ISSN: 0219-581X
Publication type: Academic Journal
DOI: 10.1142/S0219581X10006739

REAL TIME VISUALIZATION OF SURFACTANT EFFECTS ON COLLOIDAL SELF-ASSEMBLY.

ZHAO, Q.; NG, E.; KANG, H. K.; YIP, C. H.; HARTONO, M. R.; WONG, C. C.