Results 41 to 50 of about 193,064 (281)

Ultra-short pulse compression using photonic crystal fibre [PDF]

, 2004
A short section of photonic crystal fibre has been used for ultra-short pulse compression. The unique optical properties of this novel medium in terms of high non-linearity and relatively small group velocity dispersion are shown to provide an ideal ...
McConnell, G., Riis, E.
core   +1 more source

Fiber Taper-Based Mach–Zehnder Interferometer for Ethanol Concentration Measurement

Micromachines, 2019
We present a new type of fiber Mach−Zehnder interferometer based on a fiber taper and a pair of inner air bubbles for highly sensitive ethanol concentration measurement.
Changrui Liao, Feng Zhu, Peng Zhou, Ying Wang   +3 more
doaj   +1 more source

Polarimetric optical-fibre sensor for biochemical measurements [PDF]

, 1993
The use of an optical-fibre polarimeter as a chemical sensor is demonstrated. The compound to be detected is allowed to adsorb onto a decladded 5 cm length of the fibre.
Greve, Jan, Heideman, Rene G., Kooyman, Rob P.H.   +2 more
core   +2 more sources

Secure and Efficient Key Coordination Algorithm for Line Topology Network Maintenance for Use in Maritime Wireless Sensor Networks

Sensors, 2016
There has been a significant increase in the proliferation and implementation of Wireless Sensor Networks (WSNs) in different disciplines, including the monitoring of maritime environments, healthcare systems, and industrial sectors.
Walid Elgenaidi, Thomas Newe, Eoin O’Connell, Daniel Toal, Gerard Dooly   +4 more
doaj   +1 more source

Infrared laser sampling of low volumes combined with shotgun lipidomics reveals lipid markers in palatine tonsil carcinoma

Molecular Oncology, EarlyView.
Nanosecond infrared laser (NIRL) low‐volume sampling combined with shotgun lipidomics uncovers distinct lipidome alterations in oropharyngeal squamous cell carcinoma (OPSCC) of the palatine tonsil. Several lipid species consistently differentiate tumor from healthy tissue, highlighting their potential as diagnostic markers.
Leonard Kerkhoff, Manuela Moritz, Dennis Eggert, Anna Worthmann, Joerg Heeren, Henrike Zech, Till S. Clauditz, Waldemar Wilczak, Hartmut Schlüter, Christian S. Betz, Arne Böttcher, Jan Hahn   +11 more
wiley   +1 more source

Why compensating fibre nonlinearity will never meet capacity demands [PDF]

, 2015
Current research efforts are focussed on overcoming the apparent limits of communication in single mode optical fibre resulting from distortion due to fibre nonlinearity.
Alvarado, Alex, Bayvel, Polina, Lavery, Domanic, Maher, Robert, Millar, David, Savory, Seb J.   +5 more
core   +2 more sources

Engineered extracellular vesicles enriched with the miR‐214/199a cluster enhance the efficacy of chemotherapy in ovarian cancer

Molecular Oncology, EarlyView.
Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang, Ayesha Alvero, Yi Qin, Mingjin Wang, Alexandra Fox, Yanfeng Li, Michael Millman, Amy Kemper, Gil Mor, Xian Shuang Liu, Michael Chopp, Zheng Gang Zhang, Yi Zhang   +12 more
wiley   +1 more source

Dynamic microvascular monitoring with miniaturized omnidirectional broadband photoacoustic imaging system for living entities (MOBILE)

Nature Communications
Microcirculation monitoring is crucial for evaluating cardiovascular health and detecting organ dysfunction early, but existing bedside imaging techniques often cannot provide sufficient resolution and depth for dynamic assessment during natural ...
Wei Li, Xue Bai, Yizhi Liang, Peiqian He, Yachao Zhang, Qi Zhang, Zixuan Zhang, Chaoneng Wu, Changze Song, Shirong Li, Yejing Zheng, Zhixuan Hu, Xiaoxuan Zhong, Linghao Cheng, Long Jin, Bai-Ou Guan   +15 more
doaj   +1 more source

Intra-Tissue Pressure Measurement in Ex Vivo Liver Undergoing Laser Ablation with Fiber-Optic Fabry-Perot Probe

Sensors, 2016
We report the first-ever intra-tissue pressure measurement performed during 1064 nm laser ablation (LA) of an ex vivo porcine liver. Pressure detection has been performed with a biocompatible, all-glass, temperature-insensitive Extrinsic Fabry-Perot ...
Daniele Tosi, Paola Saccomandi, Emiliano Schena, Dinesh Babu Duraibabu, Sven Poeggel, Gabriel Leen, Elfed Lewis   +6 more
doaj   +1 more source

Deciphering transcriptional plasticity in pancreatic ductal adenocarcinoma reveals alterations in sensory neuron innervation

Molecular Oncology, EarlyView.
Pancreatic sensory neurons innervating healthy and PDAC tissue were retrogradely labeled and profiled by single‐cell RNA sequencing. Tumor‐associated innervation showed a dominant neurofilament‐positive subtype, altered mitochondrial gene signatures, and reduced non‐peptidergic neurons.
Elena Genova, Michele Montrone, Uday Rangaswamy, Francesco Diversi, Irene Schiavo, Denise Ferrarini, Roberta Di Florio, Irene Longo, Michele Coscia, Nicola Zamboni, Giorgia Demontis, Lisa Veghini, Vincenzo Corbo, Remo Sanges, Paul Heppenstall   +14 more
wiley   +1 more source