Chemically Triggered Swarming of Gold Microparticles

Swarming process: Gold microparticles can be organized into discrete regions by using an electrolyte gradient triggered by adding hydrazine to hydrogen peroxide (see picture). Control of the surface chemistry and particle density is used for tailoring the size and shape of the microparticle swarms. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.