Method and System for Detecting Bio-Element

A bio-element measuring method comprising steps of:

• (a) preparing a cantilever sensor having a plurality of cantilevers;
• (b) measuring a basis displacement value for the plurality of cantilevers using optic means;
• (c) reacting the cantilevers with a sample including a bio-element;
• (d) measuring displacement values of the cantilevers after the reaction, in a closed system that is isolated from an exterior environment and temperature and humidity thereof are controlled to a specific state;
• and
• (e) calculating variations of displacement values of the cantilevers before and after the reaction to carry out a quantitative analysis of the bio-element included in the sample.

A bio-element measuring system comprising:

• a closed system defining a predetermined space and isolated from an exterior environment;
• a sample supply system provided in the closed system and supplying and discharging a sample including a bio-element;
• a reaction chamber provided in the closed system, connected to the sample supply system to provide a space capable of receiving the sample and mounted with a cantilever sensor having a plurality of cantilevers;
• temperature control means for controlling a temperature of the closed system;
• and
• humidity control means for controlling humidity of the closed system.