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Updated: Jul 28, 2025

Synthesis, Cellular Delivery and In vivo Application of Dendrimer-based pH Sensors
Published on: September 10, 2013
pH-sensing supramolecular fluorescent probes discovered by library screening
Jingyu Yang1, Zizhen Zhao1, Siyang Jiang1
1Department of Chemistry, Fudan University, Shanghai, 200438, China.
Abstract:
A new design concept for pH-sensing supramolecular fluorescent probes is reported. Supramolecular fluorescent pH probes based on pro-guest are designed and prepared. Pro-guests are designed to degrade under acidic condition and convert to competitive guests to displace encapsulated dyes, which leads to a significant enhancement in fluorescence intensity. A library of potential fluorescent pH probes is generated and screened to discover workable probes. These probes are capable of detecting the acidic pH in solution phase. We confirm that these supramolecular probes could detect the acidic environment in endosomal compartments in live cells.
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