Monolayers of gold nanostars with two near-IR LSPRs capable of additive photothermal responseElectronic supplementary information (ESI) available. See DOI: 10.1039/c5cc04144a

Monolayers of photothermally responsive gold nanostars on PEI-coated surfaces display two localized surface plasmon resonances (LSPRs) in the near-IR region that can be laser-irradiated either separately, obtaining two different T jumps, or simultaneously, obtaining a T jump equal to the sum of those obtained with separate irradiations. Monolayers of gold nanostars with two NIR LSPRs can be irradiated on one, or the other or both LSPRs, obtaining additive photothermal response.