| Gold nanoparticle (94) |  |
| Inorganic nanoparticle (12) | |
| Magnetic nanoparticle (35) | |
| Metal nanoparticle (49) | |
| Nanobead (6) | |
| Nanocrystal (559) | |
| Nanodisk (9) | |
| Nanogel (7) | |
| Nanoparticle (1347) | |
| Nanoplatelet (13) | |
| Nanostar particle (10) | |
| Oxide nanoparticle (15) | |
| Silver nanoparticle (40) | |
| Zinc oxide nanoparticle (7) | |
#Stealth nanoparticles sneak past immune system s defences Small man-made peptides can help to sneak drug-bearing nanobeads past the ever-vigilant immune system,
They then stuck the peptide to commercially available polystyrene nanobeads. The beads also carried a dye
fluorescent nanobeads accumulated in the tumours. Nanoparticles tend to accumulate in tumours because of the tumour s haphazard structure and leaky blood vessels.
Buoyed by the evidence that the peptide-carrying nanobeads were circulating in the blood Discher and his team also tagged their nanobeads with the anticancer drug paclitaxel.
They saw that their peptide-carrying system shrank tumours just as well as the standard paclitaxel carrier, Cremophor,
Discher hopes that the system can be improved with custom-made nanobeads, rather than being limited to the off-the-shelf ones he and his team used."
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