The invention provides methods for imaging biological tissue. The disclosed polymethenium salts show activity as two photon imaging agents, having a greater imaging depth and photostability than known agents, whilst having lower toxicity. The methods show great selectivity for mitochondria. The methods have utility in both in vitro and in vivo imaging, for example, imaging of tumours.
本发明提供了成像
生物组织的方法。所述的聚甲烯酸盐表现出双光子成像剂的活性,具有比已知剂量更大的成像深度和光稳定性,同时毒性更低。该方法对线粒体具有很强的选择性。该方法在体外和体内成像中都具有实用性,例如,肿瘤成像。