Photouncaging delivers compounds with high spatial and temporal control to induce or inhibit biological processes but the released compounds may diffuse out. We here demonstrate that sulfonate anions can be photocaged so that a membrane impermeable compound can enter cells, be uncaged by photoirradiation and trapped within the cell.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7611313PMC
http://dx.doi.org/10.1039/d0cc07713eDOI Listing

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