Nanopottery: coiling of electrospun polymer nanofibers.
We show that a nanoscale polymer solution electrojet can coil to form free-standing hollow pottery as the jet is focused onto a sharp electrode tip. A scaling law is given based on the balance of the electrostatic compression force and the elastic resistance to predict the coil radius and frequency as the functions of relevant physical parameters. The structures formed by the nanofibers can be used in diverse fields of nanotechnology, for example, as nanomagnets, bioscaffolds, and nanochannels.
Kim
Ho-Young
HY
School of Mechanical and Aerospace Engineering, Seoul National University, Seoul 151-744, Korea. hyk@snu.ac.kr
Lee
Minhee
M
Park
Kun Joong
KJ
Kim
Sungho
S
Mahadevan
L
L