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. 2017 Mar 6;12:1803–1813. doi: 10.2147/IJN.S113366

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© 2017 Xia et al. This work is published and licensed by Dove Medical Press Limited

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Concentration of ammonium bicarbonate-encapsulating nanoparticles versus photoacoustic signal images.

Notes: Photoacoustic signal intensity serially decreased with decreasing concentration. (A) The original concentration. (B) The 2-fold diluted concentration. (C) The 4-fold diluted concentration. (D) The 8-fold diluted concentration. (E) The 16-fold diluted concentration. (F) The 32-fold diluted concentration. The positive result is represented within the dotted lines.