A single design strategy for dual sensitive pH probe with a suitable range to map pH in living cells.

Sci Rep

Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, No. 29, Wangjiang Road, Chengdu, 610064, P.R. China.

Published: October 2015

Due to the lack of a proper imaging approach, a veracious pH map of normal and abnormal cell is still rare. In this work, we presented a rhodamine-salicylaldehyde combination (Rh-SA2) as a novel pH probe, which has dual sensitive units for both acidic and basic environment. This dual sensitive probe acts like a chameleon in living cells and offers the doubling guarantees for endocellular pH mapping. Moreover, a quantitative measurement of cellular pH changes was allowed and the endocellular pH values under drug-associated stimuli were also investigated.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4614390PMC
http://dx.doi.org/10.1038/srep15540DOI Listing

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