Immunoassay is one of the most important methods of protein detection and is a key part of disease diagnosis. So far, most of the medical detections require large instruments and professional operations in laboratories, and the analysis time ranges from hours to days. However, the emergent diseases such as acute myocardial infarction and communicable diseases require detecting the real sample at or near the patient quickly. So, it is urgent to find a rapid, reliable and cheap system without any professional...