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- W2008784408 abstract "Ocular pathogens can cause serious damages in the eye leading to severe vision loss and even blindness if left untreated. Identification of pathogens is crucial for administering the appropriate antibiotics in order to gain effective control over ocular infection. Herein, we report a gold nanostar based “chemical nose” for visually identifying ocular pathogens. Using a spectrophotometer and nanostars of different sizes and degrees of branching, we show that the “chemical nose” is capable of identifying the following clinically relevant ocular pathogens with an accuracy of 99%: S. aureus, A. xylosoxidans, D. acidovorans and S. maltophilia. The differential colorimetric response is due to electrostatic aggregation of cationic gold nanostars around bacteria without the use of biomolecule ligands such as aptamers or antibodies. Transmission electron microscopy confirms that the number of gold nanostars aggregated around each bacterium correlates closely with the colorimetric response. Thus, gold nanostars serve as a promising platform for rapid visual identification of ocular pathogens with application in point-of-care diagnostics." @default.
- W2008784408 created "2016-06-24" @default.
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- W2008784408 date "2014-11-01" @default.
- W2008784408 modified "2023-09-23" @default.
- W2008784408 title "“Chemical nose” for the visual identification of emerging ocular pathogens using gold nanostars" @default.
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- W2008784408 doi "https://doi.org/10.1016/j.bios.2014.05.045" @default.
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