Abstract: An analysis method for a target substance includes: mixing a conjugate and a sample including the target substance to produce a mixture, the conjugate including a labeled substance and a first binding substance having activity to bind to the target substance; bringing the mixture into contact with a second binding substance fixed to a base; and detecting a phenomenon caused by the labeled substance bound to the target substance that is bound to the second binding substance. The first binding substance is a substance including a nucleic acid, or a substance including an amino acid. The base is provided in each of regions. The target substance to which the second binding substance binds is different among the regions.

Abstract: An analysis method detects a target substance using a binding substance. The binding substance includes: a single-stranded nucleic acid preparation having activity to bind to the target substance; and a complementary nucleic acid that forms a base pair with a 3? terminal region of the single-stranded nucleic acid preparation when the single-stranded nucleic acid preparation is not bound to the target substance, and that dissociates from the 3? terminal region when the single-stranded nucleic acid preparation is bound to the target substance.

Abstract: An analysis method according to the present disclosure includes: mixing a binding substance and a sample including a target substance. The binding substance includes a nucleic acid region composed of a nucleic acid and having activity to bind to the target substance; removing the binding substance not bound to the target substance; amplifying the nucleic acid region; and detecting a phenomenon caused by the amplification of the nucleic acid region. For example, the analysis method includes: forming a complex of a template nucleic acid including a sequence complementary to a 3? side sequence of the nucleic acid region; and amplifying the nucleic acid region by an action of a nucleic acid amplifying enzyme using the complex as a starting point.

Abstract: An ion sensor includes an ion detection element, a reference electrode that provides a reference point of a potential, and a solution in which an ion concentration can be changed in a sensing area of the ion detection element. The sensing area of the ion detection element is disposed in the solution. A method for detecting a target substance employs an ion sensor. The target substance bound to a label having a function of changing the amount of ions detectable by the ion sensor is introduced into the solution, and a change in the amount of ions is detected using the ion sensor.

Abstract: An object identification method capable of quickly and accurately identifying a virus or the like is provided. An object identification method according to an aspect of the present disclosure includes feeding an object dispersed in a solvent to a micro-channel, and applying an AC (Alternating Current) voltage to a measurement electrode provided at the micro-channel and measuring an AC characteristic of the object when the object passes through the micro-channel. Then, a combined impedance and a phase are determined by using the measured AC characteristic, and the object is identified by using the determined combined impedance and the phase.

Abstract: A structure body includes a base material and a siloxane based molecular membrane formed on the base material by use of an organic compound represented by Formula (1) or Formula (2): wherein any one of R1 to R5 is an amino group, others of R1 to R5 are each independently hydrogen or an alkyl group, R7 to R9 are each independently any one of hydroxy group, alkoxy group, alkyl group, and phenyl group on condition that one or more of R7 to R9 are each independently a hydroxy group or an alkoxy group, and R6 is an alkyl group.

Abstract: A method for detecting a plurality of target substances using a plurality of conjugates each including a binding substance and a label is provided. The binding substance has an activity to bind to one of the target substances and the label causes a detectable phenomenon. The method includes binding at least some of the plurality of conjugates with the plurality of target substances, removing a remainder of the plurality of conjugates that is not bound to the plurality of target substances, and detecting the label. A molecular weight of the binding substance is less than a molecular weight of an immunoglobulin.

Abstract: A conjugate includes a binding substance having an activity to bind to a target substance and a label causing a detectable phenomenon. A molecular weight of the binding substance is less than a molecular weight of an immunoglobulin.

Abstract: A complex includes photoresponsive liposomes, a first buffer solution, and a second buffer solution. Each of the photoresponsive liposomes includes a membrane that contains azobenzene compound and phospholipid and a membrane binding site that is immobilized to the membrane and bindable to a target substance. The first buffer solution is filled inside the photoresponsive liposomes. The second buffer solution exists outside of the photoresponsive liposomes. The first buffer solution has a composition that is different from that of the second buffer solution.

Abstract: A structure body includes a base material and a siloxane based molecular membrane formed on the base material by use of an organic compound represented by Formula (1) or Formula (2): wherein any one of R1 to R5 is an amino group, others of R1 to R5 are each independently hydrogen or an alkyl group, R7 to R9 are each independently any one of hydroxy group, alkoxy group, alkyl group, and phenyl group on condition that one or more of R7 to R9 are each independently a hydroxy group or an alkoxy group, and R6 is an alkyl group.