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This dissertation investigates exotic hadrons with heavy-quark content thatmay be understood as being generated dynamically from the hadron-hadroninteraction. This interaction is derived from a suitable effective Lagrangianand properly unitarized in a full coupled-channel basis. In particular, wediscuss the possible interpretation of some of the {\Omega}c* excited statesrecently discovered at LHCb as being meson-baryon molecular states. We alsodiscuss the dynamical generation of excited open-charm mesons from thescattering of pseudoscalar and vector charmed mesons off light mesons. We showthat a double-pole structure is predicted for the D0*(2300) state, as well asfor the D1(2430), while the Ds0*(2317) and the Ds1(2460) may be interpreted asmolecular bound states. Extensions of these calculations to the bottom sectorare also presented. Furthermore, we investigate the thermal modification of theopen heavy-flavor mesons in a hot medium. By means of an extension to finitetemperature of the unitarized effective interactions with the light mesons, weobtain the in-medium spectral properties of the D, D*, Ds, and Ds* ground-statemesons. We also analyze the temperature dependence of the masses and the decaywidths of the dynamically generated states. Additionally, we provide resultsfor the bottomed mesons by exploiting the heavy-quark spin-flavor symmetry ofthe Lagrangian. We employ the temperature-dependent spectral functions tocompute charm Euclidean correlators. We also present calculations of off-shelltransport coefficients in the hadronic phase implementing in-medium scatteringamplitudes and the thermal dependence of the heavy-meson spectral properties.

Effective-theory description of heavy-flavored hadrons and their properties in a hot medium