Results 51 to 60 of about 221,057 (260)

Carotta: Revealing Hidden Confounder Markers in Metabolic Breath Profiles

Metabolites, 2015
Computational breath analysis is a growing research area aiming at identifying volatile organic compounds (VOCs) in human breath to assist medical diagnostics of the next generation.
Anne-Christin Hauschild, Tobias Frisch, Jörg Ingo Baumbach, Jan Baumbach   +3 more
doaj   +1 more source

Unraveling Quantitative Sensing Mechanism and Predictive Molecular Metrics for High‐Performance OFET Amine Sensors

Advanced Functional Materials, EarlyView.
This study introduces a novel chloro boron subphthalocyanine/polymer blend OFET sensor achieving 0.005 ppb limit of detection for ammonia at room temperature and high selectivity against similar amines. An original theoretical framework is proposed to describe the sensing mechanism, relating analyte molecular volume and Lewis basicity to sensor ...
Kavinraaj Ella Elangovan, Matthew P. Confer, Rui Zhang, Siqing Wang, Jeffrey S. Moore, Rohit Bhargava, Ying Diao   +6 more
wiley   +1 more source

Aldehydes in Exhaled Breath during E-Cigarette Vaping: Pilot Study Results

Toxics, 2018
Several studies have shown the presence of aldehydes (i.e., formaldehyde, acrolein) in mainstream emissions of some e-cigarettes. For this reason, concerns have been raised regarding potential toxicity.
Vera Samburova, Chiranjivi Bhattarai, Matthew Strickland, Lyndsey Darrow, Jeff Angermann, Yeongkwon Son, Andrey Khlystov   +6 more
doaj   +1 more source

Analysis of Exhaled Breath Condensate pH in Asthma among Indian Population: A Pilot Study [PDF]

Journal of Clinical and Diagnostic Research, 2018
Introduction: Asthma is an inflammatory disorder of lungs and analysis of Exhaled Breath Condensate (EBC) pH may give insights on control of asthma. To the best of our knowledge, this is the first study of EBC pH among Indian population.
Manjit Sharad Tendolkar, Amita Athavale, Jairaj Nair, Sneha Tirpude, Rajwardhan Ghatge, Rahul Kendre, Anurag Deshpande, Aditi Punwani   +7 more
doaj   +1 more source

Non-contact breath sampling for sensor-based breath analysis

Journal of Breath Research, 2019
Breath analysis holds great promise for real-time and non-invasive medical diagnosis. Thus, there is a considerable need for simple-in-use and portable analyzers for rapid detection of breath indicators for different diseases in their early stages. Sensor technology meets all of these demands.
Pawel Mochalski, Gregory Shuster, Marcis Leja, Karl Unterkofler, Carsten Jaeschke, Roberts Skapars, Evita Gasenko, Inese Polaka, Edgars Vasiljevs, Gidi Shani, Jan Mitrovics, Christopher A Mayhew, Hossam Haick   +12 more
openaire   +5 more sources

Gourd‐Inspired Design of Unit Cell with Multiple Gradients for Physiological‐Range Pressure Sensing

Advanced Functional Materials, EarlyView.
Gourd‐shaped micro‐dome arrays with coordinated modulus, conductivity, and geometric gradients co‐optimize sensitivity and linearity in piezoresistive tactile sensors. Under pressure, a solid upper dome embeds into a porous lower dome, triggering rapid contact‐area growth and series‐to‐parallel conduction, enabling unsaturated, intensity‐resolved ...
Jiayi Xu, Ming Lei, Yuanzhe Liang, Biao Qi, Ziyi Dai, Yong Zhao, Bingpu Zhou   +6 more
wiley   +1 more source

Breathable Graphene Oxide‐Polymer Composite Membranes With Two‐Step Barrier Mechanism Against Nerve Agents

Advanced Functional Materials, EarlyView.
ABSTRACT Breathable membranes that reject chemical warfare agents (CWAs) are required for next‐generation protective apparel. A dual‐function graphene oxide (GO)‐polyamine architecture is introduced that addresses the long‐standing tradeoff between vapor transmission and CWA selectivity.
Hyungjun Kim, Chanui Lee, Keunhong Jeong, Seonggi Kim, Hyunju Shin, Sunghan Kim, Youngho Jin   +6 more
wiley   +1 more source

Understanding the Potential of WO3 Based Sensors for Breath Analysis

Sensors, 2016
Tungsten trioxide is the second most commonly used semiconducting metal oxide in gas sensors. Semiconducting metal oxide (SMOX)-based sensors are small, robust, inexpensive and sensitive, making them highly attractive for handheld portable medical ...
Anna Staerz, Udo Weimar, Nicolae Barsan
doaj   +1 more source

Exhaled Volatile Organic Compounds during Inflammation Induced by TNF-α in Ventilated Rats

Metabolites, 2020
Systemic inflammation alters the composition of exhaled breath, possibly helping clinicians diagnose conditions such as sepsis. We therefore evaluated changes in exhaled breath of rats given tumor necrosis factor-alpha (TNF-α). Thirty male Sprague-Dawley
Frederic W. Albrecht, Felix Maurer, Lukas M. Müller-Wirtz, Michaela H. Schwaiblmair, Tobias Hüppe, Beate Wolf, Daniel I. Sessler, Thomas Volk, Sascha Kreuer, Tobias Fink   +9 more
doaj   +1 more source

Metal–Organic Frameworks for Gaseous Pollutant Management: From Capture to Neutralization and Reutilization

Advanced Functional Materials, EarlyView.
This review maps how MOFs can manage hazardous gases by combining adsorption, neutralization, and reutilization, enabling sustainable air‐pollution control. Covering chemical warfare agent simulants, SO2, NOx, NH3, H2S, and volatile organic compounds, it highlights structure‐guided strategies that boost selectivity, water tolerance, and cycling ...
Yuanmeng Tian, Zeyu Tao, Kaikai Ma, Xiaoliang Wang, Bo Yu, Yiu Wan Yip, Zhijie Chen, Jin Shang, Bin Fei   +8 more
wiley   +1 more source