Department of Chemistry, Swansea University, Singleton Park, Swansea SA28PP, U.K.
ACS Appl Mater Interfaces. 2009 May;1(5):1023-30. doi: 10.1021/am900007m.
The preparation of multilumophore colorimetric luminescent oxygen sensors exhibiting red-green, red-blue, and red-green-blue color space responses across oxygen partial pressures in the range of 0-760 Torr is described. We show how the relative lumophore concentration, emission lifetime, and permeability of the polymer host matrix to oxygen may be used to control both the color space response and the sensitivity of these sensors, thus enabling the device to be optimized for operation over a specific oxygen concentration range or application. The Commission Internationale de L'Eclairage (CIE) xy color space response and oxygen sensitivity of these experimental multilumophore sensors has been modeled using a combination of CIE color coordinates and Stern-Volmer quenching kinetics, and generally good agreement between the experimental and modeled response is obtained. This approach will therefore provide a useful preexperimentation tool for the design of sensors with specific response characteristics.
描述了一种制备多色比色发光氧传感器的方法，该传感器在 0-760 托范围内的氧分压下表现出红-绿、红-蓝和红-绿-蓝颜色空间响应。我们展示了相对发光体浓度、发射寿命和聚合物主基质对氧气的渗透性如何用于控制这些传感器的颜色空间响应和灵敏度，从而使设备能够针对特定的氧气浓度范围或应用进行优化。使用 CIE 颜色坐标和 Stern-Volmer 猝灭动力学的组合，对这些实验性多色发光体传感器的 CIE xy 颜色空间响应和氧气灵敏度进行了建模，并且在实验和模型响应之间通常可以获得很好的一致性。因此，该方法将为具有特定响应特性的传感器的设计提供有用的预实验工具。
