Optical oxygen sensors based on platinum porphyrin dyes encapsulated in ORMOSILS

High performance optical trace oxygen sensors based on NIR-emitting benzoporphyrins covalently coupled to silicone matrixes

“…Another way to achieve high sensitivity is to use polymeric materials which have high oxygen permeability such as poly (isobutyl methacrylate-co-tetrafluoropropyl methacrylate) [19], poly(1-trimethylsilyl-1-propine) [20], ormosils [21] or silicone [22]. The attractive features of silicone rubbers besides an extraordinarily high permeability for oxygen, are the excellent chemical stability and the good adhesion to glass, which is often used as a sensor support.…”

Micro- and nanostructured sol-gel-based materials for optical chemical sensing (2005–2015)

“…In addition, it was shown that O 2 sensor films based on these fluorinated matrices exhibit a smaller error in O 2 reading due to photobleaching than sensor films based on non-fluorinated sol-gel precursors [75]. Fluorinated sol-gel-based materials have been also combined with longer lifetime platinum tetrakis pentrafluoropheny porphine (PtTFPP), platinum octaethylporphine (PtOEP), [meso-tetrakis(pentafluorophenyl) porphyinato] platinum(II) (PtF20TPP), Pt(II) meso-tetra(N-methyl-4-pyridyl)porphyrin tetrachloride phosphorescent complexes resulting in even more sensitive O 2 sensors [76][77][78]. Chu et al also described a fibrebased O 2 sensor with enhanced sensitivity.…”

Measurement of dissolved oxygen concentration field in a microchannel using PtOEP/PS film

“…PtOEP was chosen as the luminescent dye, which is sensitive to oxygen but not to temperature, and has a sufficient quenching lifetime. PtOEP/polymer film has been determined to be a good oxygen sensor in many studies (Grenoble et al 2005;Tripathi et al 2010;Cai et al 2010;Tsuboi et al 2006;Lee and Okura 1997;Mori et al 2009). …”