Biometric information measuring sensor, biometric information measuring system, and method of measuring biometric information using the sensor

A biometric information measuring system, the system comprising:

• a biometric information measuring sensor comprising a base with a plurality of bio-marker measuring areas, a plurality of electrodes, and a plurality of needles, each of the plurality of electrodes being disposed on a respective one of the plurality of bio-marker measuring areas, each of the plurality of electrodes comprising a working electrode and a counter electrode spaced apart from the working electrode, and each of the plurality of needles being disposed on a respective one of the plurality of electrodes, wherein the plurality of needles includes a first needle set including a same first length of needles coated with a first probe biomolecule positioned at a first depth and a second needle set including a same second length of needles coated with a second probe biomolecule positioned at a second depth, wherein the first depth is different from the second depth;
• and
• a terminal unit configured to calculate biometric information of a specimen from an electric signal transmitted from the biometric information measuring sensor,
• wherein each of the first probe biomolecule and the second probe biomolecule is coated on only end portions of the needles included in the first needle set and the needles included in the second needle set, respectively, and
• wherein the first length of needles and second length of needles are different.