ArticlebioRxiv : the preprint server for biology2025
Designer Aromatic Cations for Photo-Induced Protein Ligation, Imaging, and Intracellular Labelling at Extended Wavelengths.
Article in bioRxiv : the preprint server for biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Photo-induced protein labelling strategies have become essential tools in chemical biology, but most strategies require high energy wavelengths of light as input to drive reactivity. Recently, we reported a biocompatible method for engaging photo-induced electron transfer to drive protein labelling using biaryl pyridinium salts and, here, we report the design of a series of aromatic cation salts that trigger this process using longer wavelengths of light while maintaining a sterically minimal profile. We achieved this through the systematic study of structure-reactivity relationships of various donor-acceptor pyridinium salts possessing extended conjugation, and these studies revealed the need of a constrained
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