Bulletin of the Korean Chemical Society

  • 제33권5호
  • /
  • Pages.1608-1612
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  • 2012
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  • 0253-2964(pISSN)
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  • 1229-5949(eISSN)
대한화학회 (Korean Chemical Society)
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Highly Sensitive Fluorescent Probes for the Quantitative Determination of Singlet Oxygen (1O2)

  • Ahmed, Syed Rahin (Department of Nanofusion Technology, College of Nanoscience and Nanotechnology, Pusan National University) ;
  • Koh, Kwang-Nak (Department of Nanofusion Technology, College of Nanoscience and Nanotechnology, Pusan National University) ;
  • Kang, Nam-Lyong (Department of Nanofusion Technology, College of Nanoscience and Nanotechnology, Pusan National University) ;
  • Lee, Jae-Beom (Department of Nanofusion Technology, College of Nanoscience and Nanotechnology, Pusan National University)
  • 투고 : 2012.01.04
  • 심사 : 2012.02.13
  • 발행 : 2012.05.20
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초록

Singlet oxygen ($^1O_2$) is an important species for oxidation in biological processes. $^1O_2$ is implicated in the genotoxic effect, and plays an important role in the cell-signaling cascade and in the induction of gene expression. However, the rapid detection of $^1O_2$ in biological environments with sufficient specificity and sensitivity is hampered by its extremely low emission probability. Here, a layer-by-layer (LbL) film of CdTe quantum dots (QDs), polymers, and ascorbate have been designed as a rapid, highly selective, and sensitive fluorescence probe for $^1O_2$ detection. Upon reaction with $^1O_2$, the probe exhibits a strong photoluminescence (PL) response even at trace levels. This remarkable PL change should enable the probe to be used for $^1O_2$ detection in many chemical and biological systems and as an environmental sensor.

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참고문헌

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피인용 문헌

  1. Luminescence-Based Optical Sensors Fabricated by Means of the Layer-by-Layer Nano-Assembly Technique vol.17, pp.12, 2017, https://doi.org/10.3390/s17122826