A biopatch, a bioheater, a
biosensor and a bioelectronic patch device are provided.The biopatch comprises a
polymer film comprising a
biopolymer and a
drug loaded in the
polymer film. The
biopolymer may comprise one or more than one of a
bioabsorbable polymer, a
biodegradable polymer and a biocompatible
polymer. The
biopolymer may comprise oxidized
starch. The
drug may comprise a first
drug chemically combined with the oxidized
starch and a second drug physically combined with the oxidized
starch.The bioheater comprises a heater comprising biometal. The biometal may comprise Mg or Fe. The heater can be controlled wirelessly by an alternating
magnetic field.A
biosensor according to one embodiment of the present inventive concept comprises an
inductor and a
capacitor connected to the
inductor, wherein the
capacitor comprises a first
electrode, a second
electrode facing the first
electrode and a
dielectric disposed between the first electrode and the second electrode, each of the
inductor, the first electrode and the second electrode comprises biometal, and the
dielectric comprises a biopolymer having a
glass transition temperature in a range of 36˜42° C. A
biosensor according to another embodiment of the present inventive concept comprises an inductor and a
capacitor connected to the inductor, wherein the capacitor comprises a first electrode, a second electrode facing the first electrode and a
dielectric disposed between the first electrode and the second electrode, a change in a dielectric constant of the dielectric is transmitted to an external device through a
resonance frequency change with the inductor, and the external device measures temperature around the biosensor by measuring the
resonance frequency change wirelessly.A bioelectronic patch device according to one embodiment of the present inventive concept comprises a
drug patch comprising a polymer film comprising a biopolymer and a drug loaded in the polymer film, and a heater adjacent to the
drug patch to heat the
drug patch. A bioelectronic patch device according to another embodiment of the present inventive concept comprises a drug patch comprising a polymer film comprising a biopolymer and a drug loaded in the polymer film, a first
protection layer disposed on the drug patch, a heater disposed on the first
protection layer and heating the drug patch, a temperature sensor disposed on the first
protection layer, spaced apart from the heater and measuring temperature of the heater, and a second protection layer covering the heater and the temperature sensor on the first protection layer.