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相关概念视频

Photoluminescence: Applications01:14

Photoluminescence: Applications

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Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...
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Photoluminescence: Fluorescence and Phosphorescence01:23

Photoluminescence: Fluorescence and Phosphorescence

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Photoluminescence is a process where a molecule absorbs light energy and re-emits it in the form of light. This phenomenon occurs when a substance absorbs photons, promoting its electrons to higher energy level excited states, followed by a relaxation process in which the electrons return to their original ground state energy levels and emit light. Photoluminescence is widely observed in various materials, including semiconductors, and organic and inorganic compounds.
A pair of electrons in a...
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生物应用的光子学:传感器和技术

Nélia Alberto1, Maria Fátima Domingues1,2,3, Nunzio Cennamo4

  • 1Instituto de Telecomunicações, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.

Biosensors
|July 25, 2025
PubMed
概括

由于技术进步,光子系统越来越多地用于生物应用. 这一趋势是由生物研究和医疗保健领域需要创新的解决方案所驱动的.

科学领域:

  • *光子学和生物工程:融合基于光的技术与生物系统的跨学科应用.
  • *生物医学光学:用于诊断,成像和治疗的光学方法的进步.

背景情况:

  • *在过去十年中,人们对生物应用的光子系统越来越感兴趣.
  • *关键的驱动因素包括技术进步和新兴的研究需求.

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