Literature has explored incorporating secondary materials into the plasmonics gold nanoparticle system, with magnetic iron (III) oxide (Fe3O4) being a notable example. This addition not only enhances plasmonic properties , but also enables magnetic-assisted nanoparticle concentration upon applying a magnet to the analyte solution, thereby improving overall colorimetric LFIA sensitivity. This effect has been explored within core-shell and satellite magnetic-plasmonic nanoparticle systems. For example, Yang et al. utilized gold nanoparticledecorated Fe3O4 nanospheres, reporting enhanced colorimetric detection . Additionally, Li et al. developed Fe3O4 nanoclusters, conjugated with gold nanoshells, observing improved visual readout . Fe3O4-gold hetero-aggregates were also investigated by Razo et al. for colorimetric LFIA optimization . Although hybrid Fe3O4-based gold nanoparticle systems improve LFIA sensitivity, their LSPR activity remains suboptimal due to the limitations of isotropic spherical gold nanoparticle design. We believe that incorporating an anisotropic nanoparticle system, such as a nanostar shell on the Fe3O4 core, leveraging the high optical brightness of anisotropic gold nanostars, can significantly enhance the sensitivity of colorimetric LFIA.