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Bloch surface waves (BSWs) in one-dimensional photonic crystals are considered as a promising platform for two-dimensional integrated optics and optical manipulation of particles. In this contribution, we present an experimental study of nonlinear optical effects that occur when BSWs are excited at the interface with a water suspension of dielectric nanoparticles. The results are in agreement with our theoretical predictions and highlight the potential of BSWs for use in two-dimensional devices operating in a nonlinear regime.