| 摘要 |
A method for detecting the presence of a substance such as an antigen, the method including the steps of: maintaining a signaling material at a first pH within a liposome; contacting the liposome with a sample having a second pH such that if the substance is present in the sample the liposome will rupture thereby exposing the signaling material to the second pH; and detecting a change in an optical property, such as color, of the signaling material, the change caused by the exposure to the second pH.
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