Nanocomposites containing neutral blue emitting cyclometalated iridium(III) emitters for oxygen sensing

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In vivo measurement of the tissue oxygenation by time-resolved luminescence spectroscopy of protoporphyrin IX: Strategies to minimize artefacts associated with photoproducts

Georges Wagnières, Emmanuel Louis Arthur Gerelli, Veronika Huntosova

The determination of the oxygen partial pressure (pO(2)) in real time in living biological tissues is of high interest for numerous therapeutics, including photodynamic therapy (PDT) and radiotherapy. The minimally invasive and real-time measurement of the ...

Spie-Int Soc Optical Engineering2017

Sequestered Chloroplasts In The Benthic Foraminifer Haynesina Germanica: Cellular Organization, Oxygen Fluxes And Potential Ecological Implications

Charlotte Madeleine Nicole Lekieffre, Emmanuelle Geslin

Haynesina germanica is a coastal benthic foraminifer known to sequester chloroplasts from benthic pennate diatoms. This study investigates its cellular organization, as well as the oxygen consumption and production rates under dark and light conditions. Th ...

2017

Effect of PpIX photoproducts formation on pO2 measurement by time-resolved delayed fluorescence spectroscopy of PpIX in solution and in vivo

Georges Wagnières, Emmanuel Louis Arthur Gerelli, Matthieu Philippe Emmanuel Zellweger, Veronika Huntosova

The measurement of Protoporphyrin IX delayed fluorescence lifetime is a minimally invasive method for monitoring the levels of oxygen in cells and tissues. The excitation of Protoporphyrin IX during this measurement can lead to the formation of photoproduc ...

Elsevier Science Sa2016

Oxygen depletion in stratified lakes - why shallow and deep lakes react differently

Alfred Johny Wüest, Robert Vincent Schwefel

Oxygen is the most important element in natural waters for any higher aquatic life, such as fish. As with humans, almost all members of aquatic ecosystems need oxygen to breathe. Building on this, treatment of drinking water is easier for oxic than for ano ...

2016

Effects of climate change on deep-water oxygen and winter mixing in a deep lake (Lake Geneva)

Alfred Johny Wüest, Damien Bouffard, Robert Vincent Schwefel

Oxygen is the most important dissolved gas for lake ecosystems. Because low oxygen concentrations are an ongoing problem in many parts of the oceans and numerous lakes, oxygen depletion processes have been intensively studied over the last decades and were ...

2016

Gold Nanofilm Redox Catalysis for Oxygen Reduction at Soft Interfaces

Hubert Girault, Pekka Eero Peljo, Micheal Diarmaid Scanlon, Evgeny Smirnov

Functionalization of a soft or liquid-liquid interface by a one gold nanoparticle thick “nanofilm” provides a conductive pathway to facilitate interfacial electron transfer from a lipophilic electron donor to a hydrophilic electron acceptor in a process kn ...

Elsevier2016

Heterogeneous versus homogeneous electron transfer reactions at liquid–liquid interfaces: The wrong question?

Hubert Girault, Pekka Eero Peljo, Evgeny Smirnov

Elsevier Science Sa2016

Measurement of pO2 by luminescence lifetime spectroscopy: A comparative study of the phototoxicity and sensitivity of [Ru(Phen)3]2+ and PdTCPP in vivo

Georges Wagnières, Emmanuel Louis Arthur Gerelli, Veronika Huntosova

Dysfunctions in tissue metabolism can be detected at early stages by oxygen partial pressure (pO(2)) measurement. The measurement of emission lifetimes offers very promising and non-invasive approach to estimate pO(2) in vivo. This study compares two exten ...

Wiley-V C H Verlag Gmbh2016

Erythropoietin Restores Long-Term Neurocognitive Function Involving Mechanisms of Neuronal Plasticity in a Model of Hyperoxia-Induced Preterm Brain Injury

Yohan Van de Looij

Cerebral white and grey matter injury is the leading cause of an adverse neurodevelopmental outcome in prematurely born infants. High oxygen concentrations have been shown to contribute to the pathogenesis of neonatal brain damage. Here, we focused on moto ...

Hindawi Limited2016

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In vivo measurement of the tissue oxygenation by time-resolved luminescence spectroscopy of protoporphyrin IX: Strategies to minimize artefacts associated with photoproducts

Georges Wagnières, Emmanuel Louis Arthur Gerelli, Veronika Huntosova

Spie-Int Soc Optical Engineering2017

Sequestered Chloroplasts In The Benthic Foraminifer Haynesina Germanica: Cellular Organization, Oxygen Fluxes And Potential Ecological Implications

Charlotte Madeleine Nicole Lekieffre, Emmanuelle Geslin

2017

Effect of PpIX photoproducts formation on pO2 measurement by time-resolved delayed fluorescence spectroscopy of PpIX in solution and in vivo

Georges Wagnières, Emmanuel Louis Arthur Gerelli, Matthieu Philippe Emmanuel Zellweger, Veronika Huntosova

Elsevier Science Sa2016

Measurement of pO2 by luminescence lifetime spectroscopy: A comparative study of the phototoxicity and sensitivity of [Ru(Phen)3]2+ and PdTCPP in vivo

Georges Wagnières, Emmanuel Louis Arthur Gerelli, Veronika Huntosova

Wiley-V C H Verlag Gmbh2016

Erythropoietin Restores Long-Term Neurocognitive Function Involving Mechanisms of Neuronal Plasticity in a Model of Hyperoxia-Induced Preterm Brain Injury

Yohan Van de Looij

Hindawi Limited2016