The present invention provides a technique capable of simply analyzing a target to be analyzed. An analytical device of the present invention includes a basal plate; a nucleic acid element; and a detection section of detecting a signal. The nucleic acid element and the detection section are arranged on the basal plate. The nucleic acid element includes a first nucleic acid molecule and a second nucleic acid molecule. The first nucleic acid molecule is a nucleic acid molecule capable of binding to a target. The second nucleic acid molecule is a nucleic acid molecule capable of binding to streptavidin. When the target does not bind to the first nucleic acid molecule, a binding capacity of the second nucleic acid molecule to the streptavidin is inactivated. When the target binds to the first nucleic acid molecule, a binding capacity of the second nucleic acid molecule to the streptavidin is activated. The detection section detects binding between the second nucleic acid molecule and the streptavidin. The target is bound to the first nucleic acid molecule, so that the streptavidin is bound to the second nucleic acid molecule. Thus, the target can be analyzed through detecting the binding between the second nucleic acid molecule and the streptavidin using the detection device.
本发明提供了一种能够简单分析待分析目标的技术。本发明的分析装置包括基板、核酸元件和检测信号的检测部分。核酸元件和检测部分布置在基底板上。核酸元件包括第一核酸分子和第二核酸分子。第一核酸分子是能够与靶标结合的核酸分子。第二核酸分子是能够与
链霉亲和素结合的核酸分子。当目标物不与第一核酸分子结合时,第二核酸分子与
链霉亲和素的结合能力失活。当目标物与第一核酸分子结合时,第二核酸分子与
链霉亲和素的结合能力被激活。检测部分检测第二核酸分子与
链霉亲和素之间的结合。目标物与第一核酸分子结合,因此
链霉亲和素与第二核酸分子结合。因此,可以通过检测装置检测第二核酸分子与
链霉亲和素之间的结合情况来分析目标物。