Results 51 to 60 of about 81,664 (299)

Evaluation of Antimicrobial Effect of Herbal Medicaments - Mangosteen, Turmeric, Babul Extracts, and Chlorhexidine against Candida albicans Biofilm in Endodontics: An In Vitro Study

Journal of Orofacial Sciences, 2023
Introduction: Identification of causative microorganisms in the infected root canal can help in successful treatment. Microorganisms produce a mixture of organic volatile compounds, and determining these volatile organic compound metabolites by gas ...
Vinoo Subramaniam Ramachandran, Mensudar Rathakrishnan, Vidya Kazhiyur Mudimbaimannar, Malathy Balaraman Ravindrran, Alargarsamy Venkatesh, Jayakumar Dinakar   +5 more
doaj   +1 more source

Tropospheric volatile organic compounds in China [PDF]

Science of The Total Environment, 2017
Photochemical smog, characterized by high concentrations of ozone (O3) and fine particles (PM2.5) in the atmosphere, has become one of the top environmental concerns in China. Volatile organic compounds (VOCs), one of the key precursors of O3 and secondary organic aerosol (SOA) (an important component of PM2.5), have a critical influence on atmospheric
H. Guo, Z.H. Ling, H.R. Cheng, I.J. Simpson, X.P. Lyu, X.M. Wang, M. Shao, H.X. Lu, G. Ayoko, Y.L. Zhang, S.M. Saunders, S.H.M. Lam, J.L. Wang, D.R. Blake   +13 more
openaire   +4 more sources

Intermediate Resistive State in Wafer‐Scale Vertical MoS2 Memristors Through Lateral Silver Filament Growth for Artificial Synapse Applications

Advanced Functional Materials, EarlyView.
In MOCVD MoS2 memristors, a current compliance‐regulated Ag filament mechanism is revealed. The filament ruptures spontaneously during volatile switching, while subsequent growth proceeds vertically through the MoS2 layers and then laterally along the van der Waals gaps during nonvolatile switching.
Yuan Fa, Milan Buttberg, Ke Ran, Rana Walied Ahmad, Dennis Braun, Lukas Völkel, Jimin Lee, Sofía Cruces, Bart Macco, Bárbara Canto, Holger Lerch, Thorsten Wahlbrink, Holger Kalisch, Michael Heuken, Andrei Vescan, Joachim Mayer, Zhenxing Wang, Ilia Valov, Stephan Menzel, Max C. Lemme   +19 more
wiley   +1 more source

Concentrations and fluxes of biogenic volatile organic compounds above a Mediterranean macchia ecosystem in western Italy [PDF]

, 2009
Emission rates and concentrations of biogenic volatile organic compounds (BVOCs) were measured at a Mediterranean coastal site at Castelporziano, approximately 25 km south-west of Rome, between 7 May and 3 June 2007, as part of the ACCENT-VOCBAS field ...
Fares, S, Misztal, P, S. Fares, J. N. Cape, Cape, J. N, Fares, S., P. Misztal, Loreto, F, Rinne, J., Langford, B., Matteucci, G, Hewitt, C. N., Davison, B., Cape, J.N., Loreto, F., Cape, J. N., Taipale, Risto, B. Langford, Rinne, Janne, Hewitt, C. N, C. N. Hewitt, R. Taipale, Taipale, R., B. Davison, G. Matteucci, Hewitt, C.N., Langford, B, J. Rinne, Davison, B, Misztal, P., F. Loreto, Matteucci, G.   +31 more
core  

Impact of rising CO2 on emissions of volatile organic compounds: isoprene emission from Phragmites australis growing at elevated CO2 in a natural carbon dioxide spring. [PDF]

, 2004
Isoprene basal emission (the emission of isoprene from leaves exposed to a light intensity of 1000 mmol m-2 s-1 and maintained at a temperature of 30 â C) was measured in Phragmites australis plants growing under elevated CO2 in the Bossoleto CO2 ...
Scholefield, P. A., Pinelli, P., Doick, K. J., Herbert, B. M. J., Schnitzler, J.- P., Loreto, F., Schnitzler, J. P., Hewitt, C. N. S., Hewitt, C. N.   +8 more
core   +1 more source

A pilot study exploring the use of breath analysis to differentiate healthy cattle from cattle experimentally infected with Mycobacterium bovis.

PLoS ONE, 2014
Bovine tuberculosis, caused by Mycobacterium bovis, is a zoonotic disease of international public health importance. Ante-mortem surveillance is essential for control; however, current surveillance tests are hampered by limitations affecting ease of use ...
Christine K Ellis, Randal S Stahl, Pauline Nol, W Ray Waters, Mitchell V Palmer, Jack C Rhyan, Kurt C VerCauteren, Matthew McCollum, M D Salman   +8 more
doaj   +1 more source

Nickel-Oxide Based Thick-Film Gas Sensors for Volatile Organic Compound Detection

Chemosensors, 2021
In this paper, we report on the development of a highly sensitive and humidity-tolerant metal-oxide-based volatile organic compound (VOC) sensor, capable of rapidly detecting low concentrations of VOCs.
Sai Kiran Ayyala, James A. Covington
doaj   +1 more source

Silicified Wood‐Inspired, High‐Strength Fire‐Resistant Chitin‐Based Aerogels for Sustainable High‐Temperature Thermal Insulation

Advanced Functional Materials, EarlyView.
Inspired by natural silicified wood, a biomimetic mineralized chitin‐derived aerogel is constructed. It can withstand 81 000 times its own weight, and its backside temperature is 130.4°C after exposure to ∼1300°C butane flame for 600 s, exhibiting high‐strength, fire‐resistance, and super thermal‐insulation properties.
Kai Xu, Qihang Lv, Lubin Liu, Zhezhe Zhou, Chentao Yan, Ao Qin, Jianting Ma, Shuhui Liang, Yue Xu, Min Hong, Bin Li, Pingan Song   +11 more
wiley   +1 more source

Carbon isotope anomaly in the major plant C-1 pool and its global biogeochemical implications

, 2004
We report that the most abundant C-1 units of terrestrial plants, the methoxyl groups of pectin and lignin, have a unique carbon isotope signature exceptionally depleted in C-13.
Kalin, R., Keppler, F., Hamilton, JTG, McRoberts, WC, Harper, DB   +4 more
core   +1 more source

Global atmospheric budget of acetaldehyde: 3-D model analysis and constraints from in-situ and satellite observations [PDF]

, 2010
We construct a global atmospheric budget for acetaldehyde using a 3-D model of atmospheric chemistry (GEOS-Chem), and use an ensemble of observations to evaluate present understanding of its sources and sinks.
F. Flocke, E. Apel, Siegel, DA, Riemer, DD, Singh, HB, Warneke, C., Apel, E, A. Guenther, J. Williams, Warneke, C, de Gouw, J. A., Sinha, V, D. B. Millet, P. I. Palmer, Barkley, M., Millet, D. B., D. D. Riemer, Guenther, A., C. Warneke, Flocke, F, Guenther, A, Karl, T., Palmer, Paul, Williams, J., Karl, T, H. B. Singh, Millet, DB, T. Karl, Palmer, P. I., V. Sinha, Singh, H. B., M. Barkley, D. A. Siegel, N. B. Nelson, Riemer, D. D., Sinha, V., Barkley, M, Flocke, F., Nelson, N. B., Siegel, D. A., Palmer, PI, Eerdekens, G., J. A. de Gouw, Apel, E., de Gouw, JA, Eerdekens, G, G. Eerdekens, Williams, J, Nelson, NB   +48 more
core   +1 more source