LI Guang, CHEN Long-cong, LI Xian, et al. Detection of ischemia modified albumin using SPR biosensor[J]. 2014, 33(1): 144-146+156. DOI: 10.13873/j.1000-97872014.01.002.
The detection of Ischemia modified albumin(IMA) is significant for early diagnosis and intervention of myocardial ischemia patient. Present a sensitive IMA detection protocol based on surface plasmon resonance(SPR) biosensor combined nanogold and mixed self-assembled Au film. Different assay methods are investigated and compared. Result shows that the limit of detection(LOD) is 393 ng / L for direct detection
while
as to inhibitive assay
the LOD is less than 5. 0 ng / L. Compared with other methods
SPR biosensor exhibits good repetition
in this way
the sensitivity and discrimination of the proposed biosensor are greatly improved.
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