Abstract
The nucleolus is responsible for RNA transcription, processing, and ribosome assembly, the dysfunction of which is associated with a number of diseases. In this report, a new member of fluorescent protein nanovessels (FPNs), constructed using thioflavin-T (ThT) and bovine serum albumin (BSA) as building blocks, is described. As a popular amyloid specific dye, ThT is nonfluorescent by itself, while its fluorescence can be lighted up upon interacting with amyloid proteins. Herein, ThT is coassembled with the BSA scaffold at high temperature to form T(hT)-FPNs. These green fluorescence emissive bio-abiotic hybrid materials can serve as a novel probe for real-time nucleolus imaging of living cells. Besides, T-FPNs show potential in delivering insoluble and/or impenetrable drugs into living cells, suggesting another role as a molecule carrier.
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