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. Author manuscript; available in PMC: 2015 Apr 22.
Published in final edited form as: Int J Cancer. 2012 Oct 11;132(7):1613–1623. doi: 10.1002/ijc.27837

Figure 1.

Figure 1

Validation of pHLIP to measure changes in extracellular pH in a cell culture model.

Figure 1A: Fluorescent labeling of HeLa cells with Alexa-647 labeled pHLIP at various extracellular pH conditions. Scale bars represent 10 μm.

Figure 1B: Quantification of fluorescence imaging measurements of HeLa cells at selected extracellular pH conditions (error bar represents standard error).