The original, reliable fluorescent tracer
Do not be misled by the unsubstantiated claims of other suppliers!
For Reliable, Robust Retrograde Transport, There's Only One Choice: RetroBeads™ from Lumafluor.
No matter what they call their products, only Retrobeads™ (regular and IX) from Lumafluor have been proven effective by hundreds of published papers in systems ranging from invertebrates to primates, and everything in between.
Lumafluor Retrobeads™:
Highly confined injections--superb for detailed connectivity studies. Persist indefinitely (> 1 year!) in living cells, nontoxic. Compatible with most other anterograde tracers, in situ hybridization, and immunohistochemsitry.
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RetrobeadS™ IX
Retrobeads IX
deliver bioactive agents (such as neurotrophins and neurotransmitter agonists/antagonists) to localized regions; retrograde transport allows determining which neurons were exposed to the agents [Riddle et al. Nature 378:189, 1995 and Quattrochi et al. Science 245:984, 1989.]
Retrobeads IX
are specially prepared to facilitate adsorption of proteins and other bioactive compounds.
Retrobeads IX
are also more effective tracers in primate systems than standard
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