Poly(NIPAAm-co-MAA-co-BPQAAm) was deposited on the top of AuNP arrays carried by a glass substrate as described above. The substrate was mounted into the home-built general-purpose multi-photon absorption lithography setup for the recording step (details can be found in Refs. [50, 51]). After the selection of the correct z plane, a rectangular area of 75 × 50 µm 2 was recorded.