Experiments performed by Marciano in Sasha Rakovich’s group at King’s College London show that an array of plasmonic nanoparticles can direct the transport of analytes at high speeds! Beautiful realization of our earlier theoretical proposal with the Zhang Lab @Berkeley (currently at HKU). Thanks to everyone involved, specially Marciano and Sasha.

Plasmonic Brownian Ratchets for Directed Transport of Analytes
Marciano Palma do Carmo, David Mack, Diane J. Roth, Miao Zhao, Ancin M. Devis, Francisco J. Rodríguez-Fortuño, Stefan A. Maier, Paloma A. Huidobro, Aliaksandra Rakovich
Nano Letters, 26, 1, 181-187 (2025)