Biosensor

A biosensor, comprising:

• a blood cell separation membrane comprising pores to separate blood cells from blood and to allow plasma components to pass through the membrane;
• a lower substrate in which plasma components that have passed through the blood cell separation membrane are stored;
• a spacer positioned between the lower substrate and the blood cell separation membrane;
• a plurality of pillars located at a border of a space formed between the blood cell separation membrane and the lower substrate;
• an electrode disposed in at least one of the plurality of pillars,
• wherein the plurality of pillars are separated from each other, and
• wherein each of the plurality of pillars is positioned on a top surface of the lower substrate and is configured to support the blood cell separation membrane, such that a plurality of portions of a bottom surface of the blood cell separation membrane supported by the plurality of pillars are lifted higher than a top surface of the spacer.

A device for measuring blood sugar, the device comprising:

• a blood cell separation membrane comprising pores to separate blood cells from blood and to allow plasma components to pass through the membrane;
• a microfluid channel through which the plasma components that have passed through the blood cell separation membrane flow;
• a lower substrate which allows the plasma components that have passed through the blood cell separation membrane to flow along the microfluid channel;
• a spacer positioned between the lower substrate and the blood cell separation membrane;
• and
• a pillar which connects the blood cell separation membrane and the lower substrate, wherein the pillar is positioned on a top surface of the lower substrate and is configured to support the blood cell separation membrane, such that a portion of a bottom surface of the blood cell separation membrane supported by the pillar is lifted higher than a top surface of the spacer;
• an electrode disposed in the pillar;
• a housing which has an inner accommodation space and is formed with an insertion port, to which the electrode is insertable, at one side;
• and
• two or more contact pins which are disposed in the inner space of the housing and are in contact with the electrode.