RT Conference Proceedings T1 Thermorresponsive magnetic nanoparticles as target drug delivery for cancer treatment A1 Ortega Rodríguez, Alicia A1 Porras Alcalá, Cristina A1 Contreras-Cáceres, Rafael A1 López-Romero, Juan Manuel A1 Melguizo, Consolación A1 Prados, José Carlos K1 Nanopartículas - Toxicología K1 Nanopartículas - Uso en diagnóstico AB In this research, temperature sensitive microgels with magnetic core for controlled release of 5-fluoruracil was synthesized. Magnetic nanoparticles (Fe3O4) were prepared by coprecipitation method and the surface was functionalized by acrylic acid. Polymer poly(N-isopropylacrylamide) (PNIPAM) were grown by free radical polymerization in presence of cross-liker and initiator. The size of the polymer was manipulated by changing the mole percent of the crosslinker and evaluated for their morphology (TEM), particle size, zeta potential, loading efficiency, drug content and drug release. Furthermore, microgels were tagged with FITC, a fluorochrome which could be applied for cell imaging. Cytotoxicity studies revealed that the microgels were not toxic. These complex nanoparticles (Fe3O4/pNIPAM/FITC/5-Fu) appear to be a great promise to be used in controlled drug delivery and tumor targeting. YR 2019 FD 2019-05-15 LK https://hdl.handle.net/10630/17658 UL https://hdl.handle.net/10630/17658 LA eng NO Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech. DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 25 ene 2026