| 摘要 |
A sac, in particular a vesicle, including as a detectable marker an absorbing dye having an extinction coefficient of at least 100,000 and a solubility in water of at least 0.1M; in particular, sulforhodamine B or salt thereof. The sacs have improved stability to leakage and are useful in a variety of assays; in particular, when sensitized with a ligand. |
