Fabrication of one-dimensional colloidal assemblies from electrospun nanofibers.
Electrospun nanofibers were used as confining geometries for fabricating 1-D colloidal assemblies. Silica particles dispersed in several different polymer solutions were cast into nanofibers by an electrospinning process. The silica particle configurations were examined in terms of the size ratio of silica particles to nanofibers and the properties of the dispersing medium. As the electrospun fiber was extended highly, the silica particles dispersed in the polymer solution began to assemble spontaneously into a pearl-necklace structure. We also demonstrated the alignment of 1-D silica assemblies using a designed configuration of collector electrodes.
Lim
Jong-Min
JM
Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea.
Moon
Jun Hyuk
JH
Yi
Gi-Ra
GR
Heo
Chul-Joon
CJ
Yang
Seung-Man
SM
D002621:Chemistry / Q000379:methods; D003102:Colloids / Q000737:chemistry*; D003460:Crystallization; D004563:Electrochemistry / Q000379:methods; D008027:Light; D008855:Microscopy, Electron, Scanning; D011108:Polymers / Q000737:chemistry; D012542:Scattering, Radiation; D012822:Silicon Dioxide / Q000737:chemistry; D013499:Surface Properties
D003102:Colloids; D011108:Polymers; D012822:Silicon Dioxide