Time-varied magnetic-field induced monolayer formation and re-aggregation of Au nanoparticles during solvent evaporation.
The self-organization of citrate-capped Au nanoparticles on silicon slide driven by solvent evaporation is carried out under an time-varied magnetic field. The monolayer formation and succedent re-aggregation of Au nanoparticles are observed. The mechanism is proposed based on the interaction between Au colloidal surface and rotating electric field around nanoparticles induced by time-varied magnetic field.
State Key Laboratory of Bioelectronics and Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, Nanjing, Jiangsu, 210096, P. R. China.
Jian F
JF
Sun
Yong Q
YQ
Mao
Zhi R
ZR
Guo
Yu
Y
Zhang
Ning
N
Gu