Biosensor de glucosa Carbon-coated magnetite nanoparticles Conductividad térmica de ferrofluidos Electrochemical glucose biosensor Ferrimagnetismo Ferrofluidos Glucose oxidase Hipertermia Materials science Modified-carbon paste electrode Nanopartículas magnéticas Nanoscale materials and structures Peroxidase-like activity Specific materials: fabrication, treatment, testing, and analysis Síntesis mecanoquímica Biosensor CRITICISM AND INTERPRETATION Carbon Coatings Ferrofluid Gadolinium Hydrogen peroxide MISTERIOS DEL ROSARIO MYSTERIES OF THE ROSARY Magnetic nanoparticles Nickel ferrites SPIRITUAL LIFE Substituted ferrites Thermomagnetic properties VIDA ESPIRITUAL