id="para0002">Assembly of artificial oil bodies (AOBs) with phospholipids, a storage protein, a mixture of olive oil and brine shrimp oil.

id="para0003">High encapsulation of a hydrophobic fluorescence dye by AOBs which display a prolonged release profile of the dye.

id="para0004">Complete consumption of the dye-loaded AOBs by one zebrafish in a few seconds.

id="para0005">Emittance of fluorescence in the zebrafish intestinal tract.

id="para0006">Almost no traces of the dye cargo left in zebrafish feces.