Abstract: A sensor capable of detecting detection targets that are necessary to be detected with high sensitivity is provided. It comprises a field-effect transistor 1A having a substrate 2, a source electrode 4 and a drain electrode 5 provided on said substrate 2, and a channel 6 forming a current path between said source electrode 4 and said drain electrode 5; wherein said field-effect transistor 1A comprises: an interaction-sensing gate 9 for immobilizing thereon a specific substance 10 that is capable of selectively interacting with the detection targets; and a gate 7 applied a voltage thereto so as to detect the interaction by the change of the characteristic of said field-effect transistor 1A.

Abstract: A push mower having a height adjustment lever, which can be manipulated easily, is provided. The provided push mower includes: a main body configured to move along a ground; a blade attached to the main body; a height adjustment lever attached to the main body; and a height adjustment mechanism configured to change a height of the blade from the ground based on a position of the height adjustment lever. The height adjustment lever includes: a pillar protruding from the main body; a grip fixed to the pillar; and a lock member attached to the grip and configured to move with respect to the grip between a lock position and an unlock position. A movement of the height adjustment lever is inhibited when the lock member is at the lock position, and the movement of the height adjustment lever is allowed when the lock member is at the unlock position.

Abstract: A method of detecting a detection target using a sensor requires a sensor having a transistor selected from the group of field-effect transistors or single electron transistors. The transistor includes a substrate, a source electrode disposed on the substrate and a drain electrode disposed on the substrate, and a channel forming a current path between the source electrode and the drawing electrode; an interaction-sensing gate comprising a specific substance; and a voltage gate. The method includes (a) providing the detection target on the interaction-sensing gate; (b) setting the gate voltage in the voltage gate at a predetermined level; (c) selectively interacting the specific substance with the detection target; (d) when the detection target interacts with the specific substance, changing a gate voltage in the voltage gate to adjust a characteristic of the transistor; and (e) measuring a change in the characteristic of the transistor to determine a presence of the detection target.

Abstract: A field-effect transistor or a single electron transistor is used as sensors for detecting a detection target such as a biological compound. A substrate has a first side and a second side, the second side being opposed to the first side. A source electrode is disposed on the first side of the substrate and a drain electrode disposed on the first side of the substrate, and a channel forms a current path between the source electrode and the drain electrode. An interaction-sensing gate is disposed on the second side of the substrate, the interaction-sensing gate having a specific substance that is capable of selectively interacting with the detection target. A gate for applying a gate voltage adjusts a characteristic of the transistor as the detection target changes the characteristic of the transistor when interacting with the specific substance.

Abstract: A biomaterial structure containing a larger amount of biomaterial than the conventional art with maintaining the reactivity of the biomaterial is provided by linking particulate lumps in which the biomaterial is bound with a compound capable of binding to the biomaterial, wherein the particle diameter of the particulate lumps is 10 ?m or smaller.

Abstract: A biomaterial structure containing a larger amount of biomaterial than the conventional art with maintaining the reactivity of the biomaterial is provided by linking particulate lumps in which the biomaterial is bound with a compound capable of binding to the biomaterial, wherein the particle diameter of the particulate lumps is 10 ?m or smaller.

Abstract: A push mower having a height adjustment lever, which can be manipulated easily, is provided. The provided push mower includes: a main body configured to move along a ground; a blade attached to the main body; a height adjustment lever attached to the main body; and a height adjustment mechanism configured to change a height of the blade from the ground based on a position of the height adjustment lever. The height adjustment lever includes: a pillar protruding from the main body; a grip fixed to the pillar; and a lock member attached to the grip and configured to move with respect to the grip between a lock position and an unlock position. A movement of the height adjustment lever is inhibited when the lock member is at the lock position, and the movement of the height adjustment lever is allowed when the lock member is at the unlock position.

Abstract: Disclosed is an analysis method comprising the steps of: (a) reacting a substance to be analyzed with at least a specific partner which exhibits a selective interaction with the substance, converting a soluble substance to an insoluble substance by an insolubilization reaction, in correlation with the amount of the substance to be analyzed contained in a sample, and depositing the insoluble substance on a sensing part, and (b) electrically analyzing the insoluble substance deposited on the sensing part, wherein at least one of steps (a) and (b) is carried out under flow conditions.

Abstract: To improve convenience of a sensor unit using a transistor in analysis, a sensing gate for detection 117 of a sensor unit for detecting a detection target comprises a transistor part 103 having a substrate 108, a source electrode 111 and a drain electrode 112 provided on the substrate 108, a channel 113 forming a current path between the source electrode 111 and the drain electrode 112, and the sensing gate for detection 117 is provided with a gate body 115 fixed to the substrate 108 and a sensing part 116 capable of electrically conducting to the gate body 115 and on which a specific substance 123 capable of selectively interacting with the detection target is immobilized.

Abstract: A biomaterial structure containing a larger amount of biomaterial than the conventional art with maintaining the reactivity of the biomaterial is provided by linking particulate lumps in which the biomaterial is bound with a compound capable of binding to the biomaterial, wherein the particle diameter of the particulate lumps is 10 ?m or smaller.

Abstract: A sensor capable of detecting detection targets that are necessary to be detected with high sensitivity is provided. It comprises a field-effect transistor 1A having a substrate 2, a source electrode 4 and a drain electrode 5 provided on said substrate 2, and a channel 6 forming a current path between said source electrode 4 and said drain electrode 5; wherein said field-effect transistor 1A comprises: an interaction-sensing gate 9 for immobilizing thereon a specific substance 10 that is capable of selectively interacting with the detection targets; and a gate 7 applied a voltage thereto so as to detect the interaction by the change of the characteristic of said field-effect transistor 1A.