  The t'Hooft-Polyakov monopole mass can be substantially altered, in the thick
GS and HC brane-world setup, and can be employed to constrain the brane
thickness limit. In this work, we comprise a brief review regarding gauge
fields localization in the string-like six dimensional brane-world models
setup. The correction to the Coulomb's law in two models is studied. Besides,
the monopole features are investigated from the point of view of the gauge
fields localization in the string-like brane-worlds and its thickness.
