Abstract: A method for immobilizing microobject to a solid-phase material is provided. The method comprises a step of preparing the solid-phase material having on its surface an intermediate agent that includes a first element that is capable of interacting with at least the above microobject, and a microobject immobilizing step of immobilizing the microobject to the solid-phase material in a state in which the interaction of the intermediate agent is exhibited.

Abstract: A method for immobilizing microobject to a solid-phase material is provided. The method comprises a step of preparing the solid-phase material having on its surface an intermediate agent that includes a first element that is capable of interacting with at least the above microobject, and a microobject immobilizing step of immobilizing the microobject to the solid-phase material in a state in which the interaction of the intermediate agent is exhibited.

Abstract: The present invention provides an advantageous method for immobilizing, analyzing and recovering a biomaterial, and a surface plasmon resonance sensor utilizing the advantage of the method. The method comprises processes of placing a biomaterial on a surface of a carrier having a predetermined photo-immobilizing material, immobilizing the biomaterial by photo-irradiation, and carrying out detection, utilization, analysis or formation of a complex, followed by isolating the biomaterial by subsequent photo-irradiation and by applying external mechanical force to recover the biomaterial or the complex with maintaining the activity or the function thereof. The surface plasmon resonance sensor comprises a photo-immobilizing carrier, a photo-irradiation system, a surface plasmon measurement system and a means for applying moderate external mechanical force.

Abstract: A method for optically immobilizing very small objects, where a material with the capability of photoinduced deformation to possibly immobilize very small objects is used at least as a surface layer of a carrier and where the very small objects are immobilized via irradiation light while they are arranged on the surface of the carrier. Very small objects particularly preferably include proteins, nucleic acids and the like. A very small object-immobilized carrier having immobilized very small objects in such manner, particularly a biosensor. A method for observing a very small object immobilized on the surface of a carrier by an appropriate approach giving displacement force to the very small object. The present invention provides a method for strongly immobilizing very small objects on the surface of a carrier with a simple tool.