Published in Talanta
Optical fiber-based surface plasmon resonance (OF-SPR) sensors have demonstrated high versatility and performances over the last years, which propelled the technique to the heart of numerous and original biosensing concepts. In this work, we contribute to this effort and present our recent findings about the detection of breast cancer HER2 biomarke...
Ce travail de thèse concerne le développement d’un capteur de gaz tout optique grâce à la conversion du signal infrarouge (IR) de détection en un signal proche IR ou visible. Cette conversion en longueur d’onde rend possible le transport du signal de sonde sur de longues distances par le biais de fibres optiques en silice, augmentant ainsi considér...
La structuration de tissus biologiques à l’échelle submicronique peut être efficacement caractérisée par la polarimétrie optique de Mueller, ce qui confère à cette technique un grand intérêt pour l’aide au diagnostic précoce de diverses pathologies affectant la matrice extracellulaire, telles que certains cancers. En vue d’étendre son champ d’appli...
Published in Lasers in medical science
Photobiomodulation-based (PBM-based) therapies show promising results in mucositis and dermatitis treatment by stimulating wound healing mechanisms such as cell proliferation and migration. The aim of the present study is to investigate the in vitro effects of CareMin650 on the proliferation and migration of two different types of cells, namely can...
Published in Sensing and Imaging
We report here a novel experimental scheme for the measurement of strain that utilizes a simple intensity based interrogation system through use of optical fibers. Corresponding to splicing of a multimode fiber between two single mode fibers, the transmittance was measured by subjecting them to strain at multi points. The measurements corresponding...
Les fuites de méthane soulèvent à la fois des problématiques environnementales et sécuritaires, particulièrement dans l'industrie pétrolière. Le contrôle de panaches en temps réel permettrait de prévenir d'éventuels drames humains et catastrophes écologiques. Dans ce contexte, un volet du projet NAOMI, impliquant TOTAL E&P et l'ONERA, vise à dévelo...
Published in Optical and Quantum Electronics
The study incorporates the urea detection in non-enzymatic urea samples and enzymatic urea-urease samples utilizing the phenomenon of surface plasmon resonance (SPR)/localized surface plasmon resonance (LSPR) realized on the core of a multimoded optical fiber. The designed bio-sensor, primarily a refractive index sensor well operates for the urea d...
We report on the experimental generation of spatially multiplexed picosecond 40-GHz pulse trains at telecommunication wavelengths by simultaneous intra-modal multiple four wave mixing and intermodal cross-phase modulation in km-long bi-modal and 6-LP-mode graded-index few-mode fibers. More precisely, an initial beat-signal injected into the fundame...
Published in Computer methods and programs in biomedicine
Local tissue oxygenation determines the relationship between the supply and the demand for oxygen by the tissue and it is an important indicator of the physiological or pathological condition of the tissue. Moreover, some therapeutic methods strongly depend on the oxygen content of the tissue. In photodynamic therapy, when molecular oxygen is prese...
Published in Optical and Quantum Electronics
An optical sensor composed of a circular cylindrical fiber surrounded by graphene layer is investigated. The thin layer of graphene is located at the core–cladding interface. The cladding is an aqueous material. The conductivity (σ\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \use...
