Nanocrystals SP-A bioprobe could specially bind with pulmonary carcinoma cells, and produced fluorescence signal, but did not bind with hepatoma carcinoma cell, and no fluorescence signal appeared.

• 荧光显微镜下可见荧光纳米晶表面蛋白A探针特异性地与肺癌细胞结合产生荧光信号，但与肝癌细胞不结合，无荧光信号出现。