  We explore the impact of nonstandard interactions on neutrino propagation in
accretion disks around binary neutron star mergers remnants. We show flavor
evolution can be significantly modified even for values of the nonstandard
couplings well below current bounds. We demonstrate the occurrence of I
resonances as synchronized MSW phenomena and show that intricate conversion
patterns might appear depending on the nonstandard interaction parameters. We
discuss the possible implications for nucleosynthesis.
