Journal
LANGMUIR
Volume 30, Issue 10, Pages 2921-2925Publisher
AMER CHEMICAL SOC
DOI: 10.1021/la4049133
Keywords
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Funding
- Australian Research Council [FL120100030, DE130100488]
- University of Melbourne
- Australian Research Council [DE130100488, FL120100030] Funding Source: Australian Research Council
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The recent development of poly(dopamine) (PDA) capsules provides new opportunities for their application in biology and medicine. To advance the biomedical application of PDA capsules, strategies that enable the preparation of fluorescently labeled PDA (F-PDA) capsules are required, as this will allow evaluation of their cellular interactions using a range of fluorescence-based techniques. Herein, we report a facile approach for the fabrication of F-PDA capsules via the polymerization of dopamine (DA) on sacrificial templates in the presence of hydrogen peroxide (H2O2). F-PDA capsules with well-defined sizes are prepared by templating different organic and inorganic particles. The resulting F-PDA capsules show negligible c-ytotoxicity in He La cells after incubation for 48 h. We also demonstrate visualization of the F-PDA capsules following internalization by HeLa cells using conventional fluorescence microscopy, en route toward detailed investigations on their biological interactions.
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