Patent ID: 8247222

Claim:
A method for processing a micro-chamber for cell culture, wherein the micro-chamber comprises at least two gel layers, the method comprising the steps of: providing a transparent base plate having no conspicuous absorbency in visible and infrared regions; providing at least two different gel materials which have different absorption wavelengths or different dissolution temperatures, or providing a gel material and adding a substance absorbing infrared or visible lights to at least a part of the gel material to thereby produce at least two different gel materials which have different absorption wavelengths or different dissolution temperatures, wherein the gel materials are in a gel state at room temperature, have a gel dissolution temperature of 100 degree C. or less, solate when heated, and have absorbency at a specific wave length of visible or infrared region; laminating the at least two different gel materials on the base plate to form at least two gel layers; and irradiating at least one visible or infrared monochromatic light on at least one of the gel layers to form therein a gel-free region of a desired shape.