Fluorescence Sensing and Imaging Using Pressure-Sensitive Paints and Temperature-Sensitive Paints

Stich, Matthias I. J.; Wolfbeis, Otto S.

doi:10.1007/4243_2008_025

Cited by 21 publications

(24 citation statements)

References 115 publications

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“…36,37 The lifetimes τ 0 in absence of oxygen are usually not much affected by the polymer matrix, but it determines significantly the sensitivity of the luminophore to oxygen and temperature. 38 Despite its limited oxygen permeability, PS is a standard polymer matrix for the characterization of oxygen and temperature sensitivities of quenchable probes.…”

Section: Pressure and Temperature Sensitivitymentioning

confidence: 99%

“…Its temperature coefficient is almost as high as that of typical luminescent indicators for T such as ruthenium and europium complexes. 9,37 The advantage of this new T probe compared to the frequently applied ruthenium complexes is that it is only marginally quenched by oxygen. Ruthenium probes always respond likewise to temperature and oxygen.…”

Section: Pressure and Temperature Sensitivitymentioning

confidence: 99%

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Oxygen and temperature sensitivity of blue to green to yellow light-emitting Pt(ii) complexes

et al. 2012

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Section: Pressure and Temperature Sensitivitymentioning

confidence: 99%

Section: Pressure and Temperature Sensitivitymentioning

confidence: 99%

Oxygen and temperature sensitivity of blue to green to yellow light-emitting Pt(ii) complexes

et al. 2012

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“…[18,37] Thereby, the decay of the luminescence intensity is considered to be monoexponential, allowing a simple calculation of the luminescence lifetimes. Furthermore, the intrinsic reference accomplished by calculating an intensity ratio of two gates severely reduces the signal noise.…”

mentioning

confidence: 99%

“…[17] Luminescence lifetime imaging is an intrinsically referenced method that is not influenced by varying distances between sample and detector, nor by applying different detectors or excitation light sources. [18] A typical measurement is performed by using LEDs or laser diodes as the excitation light sources, and by detecting the luminescence by means of a CCD camera. Luminescence lifetime imaging is often performed by the rapid lifetime determination (RLD) method.…”

mentioning

confidence: 99%

Red‐ and Green‐Emitting Iridium(III) Complexes for a Dual Barometric and Temperature‐Sensitive Paint

Fischer

Stich

Wolfbeis

et al. 2009

Chemistry A European J

103

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A new dual luminescent sensitive paint for barometric pressure and temperature (T) is presented. The green-emitting iridium(III) complex [Ir(ppy)(2)(carbac)] (ppy=2-phenylpyridine; carbac=1-(9H-carbazol-9-yl)-5,5-dimethylhexane-2,4-dione) was applied as a novel probe for T along with the red-emitting complex [Ir(btpy)(3)], (btpy=2-(benzo[b]thiophene-2-yl)pyridine) which functions as a barometric (in fact oxygen-sensitive) probe. Both iridium complexes were dissolved in different polymer materials to achieve optimal responses. The probe [Ir(ppy)(2)(carbac)] was dispersed in gas-blocking poly(acrylonitrile) microparticles in order to suppress any quenching of its luminescence by oxygen. The barometric probe [Ir(btpy)(3)], in turn, was incorporated in a cellulose acetate butyrate film which exhibits good permeability for oxygen. The effects of temperature on the response of the oxygen probe can be corrected by simultaneous optical determination of T, as the poly(acrylonitrile) microparticles containing the temperature indicator are incorporated into the film. The phosphorescent signals of the probes for T and barometric pressure, respectively, can be separated by optical filters due to the approximately 75 nm difference in their emission maxima. The dual sensor is applicable to luminescence lifetime imaging of T and barometric pressure. It is the first luminescent dual sensor material for barometric pressure/T based exclusively on the use of Ir(III) complexes in combination with luminescence lifetime imaging.

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“…The state of the art has recently been reviewed. [19] PSPs are deposited as a thin film of typically 0.01-1 mm on the surface of the object to be studied, for example, on aircrafts, spacecrafts, racing cars, and in recent years even on regular cars and other moving objects. PSPs make arrays of single (mechanical) pressure sensors superfluous and have the additional advantage of not measurably disturbing the air flow.…”

Section: Pressure-sensitive Paintsmentioning

confidence: 99%

Sensor Paints

Wolfbeis

2008

Advanced Materials

Self Cite

117

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Fluorescence microscopy is widely used for chemical imaging of intrinsically fluorescent chemical species, such as chlorophylls, or nonfluorescent species (e.g., DNA) that have been labeled appropriately or to which a relevant molecular probe has been added. However, there are numerous analytes that neither have an intrinsic luminescence nor can be rendered luminescent with the help of labels or probes. Such parameters include oxygen, pH, CO2, ammonia, and glucose. There are also numerous applications where the 2D distribution of a chemical or physical parameter is of interest. The use of a “sensor paint” is ideal in such situations. The state of this new technology is discussed herein with emphasis on current and future trends, for example, the use of pressure‐ and temperature‐sensitive paints; known technological limitations are also discussed. These “paints” respond to a (bio)chemical parameter with a change in their optical properties. The object of interest is painted and the color or fluorescence of the paint is monitored by optical imaging. This technique enables monitoring of physical and chemical parameters, over relatively large areas and in real time.

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Fluorescence Sensing and Imaging Using Pressure-Sensitive Paints and Temperature-Sensitive Paints

Cited by 21 publications

References 115 publications

Oxygen and temperature sensitivity of blue to green to yellow light-emitting Pt(ii) complexes

Oxygen and temperature sensitivity of blue to green to yellow light-emitting Pt(ii) complexes

Red‐ and Green‐Emitting Iridium(III) Complexes for a Dual Barometric and Temperature‐Sensitive Paint

Sensor Paints

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