Abstract
Striped, bimetallic Au-Pt-Au rod-shaped colloidal particles were fabricated. The different chemical reactivities of Pt and Au towards thiols and isocyanides were found to influence spatially-selective chemical modification within individual nanoparticles. The preparation and chemical manipulation of anisotropic colloidal building blocks represent a first step towards anisotropic mesoscale assembly and other materials chemistry applications. It is possible to make segmented multi-metal rods of controllable length by electroplating in a porous template membrane. It is also possible to control the surface chemistry of different metals within a single colloidal particle, after it has been released from the membrane, by means of orthogonal self-assembly.
| Original language | English |
|---|---|
| Pages (from-to) | 1021-1025 |
| Number of pages | 5 |
| Journal | Advanced Materials |
| Volume | 11 |
| Issue number | 12 |
| DOIs | |
| State | Published - 1999 |
| Externally published | Yes |