Under one aspect, a composition includes a substrate; a first polynucleotide coupled to the substrate; a second polynucleotide hybridized to the first polynucleotide; and a catalyst coupled to a first nucleotide of the second polynucleotide, the catalyst being operable to cause a chemiluminogenic molecule to emit a photon. Under another aspect, a method includes providing a catalyst operable to cause a first chemiluminogenic molecule to emit a photon; providing a substrate; providing a first polynucleotide coupled to the substrate; hybridizing a second polynucleotide to the first polynucleotide; coupling a first quencher to a first nucleotide of the second polynucleotide; and inhibiting, by the first quencher, photon emission by the first chemiluminogenic molecule.
根据一个方面,一种组合物包括基底;与基底耦合的第一多核苷酸;与第一多核苷酸杂交的第二多核苷酸;以及与第二多核苷酸的第一核苷酸耦合的催化剂,催化剂可使
化学发光分子发射光子。在另一方面,一种方法包括提供一种催化剂,该催化剂可使第一
化学发光分子发射光子;提供一种基质;提供与基质耦合的第一多核苷酸;将第二多核苷酸与第一多核苷酸杂交;将第一淬灭剂与第二多核苷酸的第一核苷酸耦合;以及通过第一淬灭剂抑制第一
化学发光分子发射光子。