Supramolecular conjugated polymer materials for organelle imaging in living cells†
A novel supramolecular system based on conjugated polymers was developed to realize specific targeting and imaging of organelles in living cells. The carboxyl group-modified polythiophene derivative (PT) forms a complex with six histidine equipped Tat peptide via Ni2+ ion chelation, hydrogen bonds and electrostatic interactions (PT/Ni2+/Tat-His6). The complex can reassemble with RFP-His10 due to the relatively high affinity of Ni2+ towards His10-tag compared to His6-tag. Thus, the PT/Ni2+/Tat-His6 complex could selectively label and image organelles expressing His10-tag in living cells with high stability.
- This article is part of the themed collections: Molecular Materials and Devices and Materials Chemistry Frontiers HOT articles for 2017