Nano Archive

Quantum dot ex vivo labeling of neuromuscular synapses

Orndorff, Rebecca L. and Warnement, Michael R. and Mason, John N. and Blakely, Randy D. and Rosenthal, Sandra J. (2008) Quantum dot ex vivo labeling of neuromuscular synapses. NANO LETTERS, 8 (3). pp. 780-785.

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Nicotinic receptors (nAchRs) are responsible for fast excitatory signaling by the neurotransmitter acetylcholine (Ach). They are present on the postsynaptic membrane at neuromuscular junctions (NMJs) and also at brain synapses. α-Bungarotoxin (α-BTX), a high-affinity nAchR antagonist, inhibits Ach binding and neurotransmission.(1, 2) Here we demonstrate biotinylated α-BTX, bound to native mouse diaphragm nAchRs, can be quantified and visualized ex vivo using streptavidin-conjugated quantum dots. This approach provides a novel methodology for the direct assessment of the presence and mobility of neurotransmitter receptors in native tissue.

Item Type:Article
Subjects:Biomedical Science > Nanotechnology for human health
Material Science > Bio materials
ID Code:6420
Deposited By:IoN
Deposited On:06 Aug 2009 12:25
Last Modified:06 Aug 2009 12:25

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