Spatially marking and quantitatively counting membrane immunoglobulin M in live cells via Ag cluster–aptamer probes†
Abstract
A probe composed of an aptamer and a silver cluster, where the aptamer targets mIgM of live cells and the silver cluster provides fluorescent imaging and mass quantification of mIgM of live cells, is presented. This new probe simultaneously provides accurate spatial and mass information of mIgM in live cells.