Journal
BIOMATERIALS
Volume 103, Issue -, Pages 67-74Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biomaterials.2016.06.055
Keywords
Fluorescent probe; Aggregation-enhanced emission (AEE); CO2 generation rate; Metabolism; Diagnosis of cancer cells
Funding
- National Basic Research Program of China (973 Program) [2013CB834704]
- National Natural Science Foundation of China [51328302, 21404010]
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A novel fluorescent probe, tris (2-(dimethylamino) ethyl)-4,4',4 ''-(1H-pyrrole-1,2,5-triyl) tribenzoate (TPP-TMAE), with aggregation-enhanced emission (AEE) feature showed a simple, highly selective, specific, and instant response to trace amount carbon dioxide (CO2). Because of this special characteristic, TPP-TMAE is ideal to be a biomarker for in-situ monitoring of the CO2 generation rate during the metabolism of single living cell. The rates in single living HeLa cell, MCF-7 cell, and MEF cell were 6.40 x 10(-6) +/- 6.0 x 10(-8) mu g/h, 5.78 x 10(-6) +/- 6.0 x 10(-8) mu g/h, and 4.27 x 10(-7) +/- 4.0 x 10(-9) mu g/h, respectively. The distinct responses of TPP-TMAE to CO2 generated from cancer cells and normal cells suggested TPP-TMAE as a useful tool for deeper understanding metabolism process and distinguishing cancer cells from normal cells during the early diagnosis of cancers. (C) 2016 Elsevier Ltd. All rights reserved.
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