Abstract
Precise control over interfacial chemistry between nanoparticles and other materials remains a significant challenge limiting the broad application of nanotechnology in biology. To address this challenge, we use “Steric Exclusion” to completely convert commercial quantum dots (QDs) into monovalent imaging probes by wrapping the QD with a functionalized oligonucleotide. We demonstrate the utility of these QDs as modular and non-perturbing imaging probes by tracking individual Notch receptors on live cells.
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