Ischemia modified albumin detection has great significance in early diagnosis and treatment of myocardial ischemia. In this study, anti-IMA was immobilized on the surface of a glass slide using self-assembled DMOAP and PEI, the binding of antibody and antigen lead to topology-geomorphologic changes on the slide surface, which induced 5CB molecules orientation transformation and modulated light transmittance. Results showed that we can detect concentrations as low as 50 μg/mL IMA. Moreover, this method can be realized with label-free, easy operation without dependence on equipment, and can be observed by the naked eye.
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He et al. (2016) studied this question.
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