Results 61 to 70 of about 10,542,246 (288)

Secondary Ion Mass Spectrometry Imaging of Dictyostelium discoideum Aggregation Streams [PDF]

, 2014
High resolution imaging mass spectrometry could become a valuable tool for cell and developmental biology, but both, high spatial and mass spectral resolution are needed to enable this.
Pa��a-Toli��, Ljiljana, Smith, D.F. (Donald), Heeren, Ron M. A., Francisco A. Fern, Richard H. Gomer (214653), Richard H. Gomer, Paša-Tolić, Ljiljana, Heeren, Ron M.A., Christopher R Anderton, Gomer, R.H., Ron M A Heeren, Fernandez-Lima, Francisco A., Francisco A Fernandez-Lima, John Daniel DeBord (575199), Heeren, R.M.A. (Ron), John Daniel DeBord, Donald F Smith, Francisco A. Fernandez-Lima (575202), Fernandez-Lima, F., Smith, Donald F., Fernandez-Lima, Francisco, DeBord, John Daniel, Donald F. Smith (575200), Ljiljana Paša-Tolić, Donald F. Smith, Ron M. A. Heeren, Anderton, C.R., Ron M. A. Heeren (213370), Christopher R. Anderton, Christopher R. Anderton (575201), Ljiljana Paša-Tolić (2449252), DeBord, J.D., Richard H Gomer, Gomer, Richard H., Anderton, Christopher R., Williams, Jeffrey Graham   +35 more
core   +2 more sources

Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions

Advanced Functional Materials, EarlyView.
This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian, Jingkai Lin, Zhihao Tian, Selusiwe Ncube, Huayang Zhang, Emiliano Cortés, Hongqi Sun, Shaobin Wang   +7 more
wiley   +1 more source

Determination of Phenolic Compounds from Lignin Decomposition Products in Marine Sediments by Ultra-High Performance Liquid Chromatography-High Resolution Mass Spectrometry

Yankuang ceshi, 2023
BACKGROUNDLignin is an important component of marine organic carbon. It is also an important biomarker for extracting information on the evolution of the land and marine environment and tracking the source of organic marine matter.
Jianbo YANG, Junhui CHEN, Xiuping HE, Jiuming WANG, Ming XIN, Xia SUN, Baodong WANG   +6 more
doaj   +1 more source

Accurate selected ion flow tube mass spectrometry quantification of ethylene oxide contamination in the presence of acetaldehyde

Analytical Methods, 2023
Rate coefficients and product ion branching ratios were obtained for the gas phase reactions of the H 3 O + , NO + , OH − and O ...
Stefan J. Swift, Kseniya Dryahina, Ann-Sophie Lehnert, Nicholas Demarais, Vaughan S. Langford, Mark J. Perkins, Leslie P. Silva, Maroua Omezzine Gnioua, Patrik Španěl   +8 more
openaire   +3 more sources

Determining the chronology of deposition of natural fingermarks and inks on paper using secondary ion mass spectrometry [PDF]

, 2014
This study thoroughly explores the use of time-of-flight secondary ion mass spectrometry (ToF-SIMS) for determining the deposition sequence of fingermarks and ink on a porous paper surface.
de Puit, Marcel, Jones, Benjamin, Ismail, Mahado, Reynolds, Alan, Ismail, M, Jones, BJ, Doodkorte, Lisette, Attard-Montalto, N, Ojeda, Jesus J., Doodkorte, L, Bailey, Melanie, Reynolds, A, Jesus Ojeda Ledo, Bailey, M, De Puit, M, Jones, B J, Attard-Montalto, Nicola, Ojeda, JJ, Ojeda, J J   +18 more
core   +1 more source

Electrode and Microstructure Dependence of Oxygen Diffusion in Ferroelectric Hafnium Zirconium Oxide Thin Films

Advanced Functional Materials, EarlyView.
Significant nanoscale oxygen diffusion coefficient variations are measured in ferroelectric hafnium zirconium oxide films with grain boundaries and electrode interfaces exhibiting values 104 times larger than the grain cores. Overall coefficients are 10X larger for films prepared with metal nitride electrodes compared to refractory metals. New insights
Liron Shvilberg, Thomas W. Pfeifer, Chuanzhen Zhou, Yong Kyu Choi, Duk‐Hyun Choe, Patrick E. Hopkins, Jon F. Ihlefeld   +6 more
wiley   +1 more source

Quantitative Analysis of NDMA in Drug Products: A Proposed High-Throughput Approach Using Headspace–SIFT-MS

AppliedChem
Since the initial 2018 recall of angiotensin receptor blockers due to unacceptable levels of mutagenic N-nitrosodimethylamine (NDMA) impurity, numerous drug products delivering diverse active pharmaceutical ingredients (APIs) have been recalled ...
Mark J. Perkins, Colin J. Hastie, Vaughan S. Langford   +2 more
doaj   +1 more source

Quantification by SIFT-MS of volatile compounds produced by the action of sodium hypochlorite on a model system of infected root canal content. [PDF]

PLoS ONE, 2018
Root canal irrigation with sodium hypochlorite (NaOCl) is an indispensable part of the chemomechanical preparation of infected root canals in Endodontology.
Konstantinos Ioannidis, Sadia Niazi, Sanjukta Deb, Francesco Mannocci, David Smith, Claire Turner   +5 more
doaj   +1 more source

Support‐Controlled Reaction Pathways via Dynamic Sulfur‐Mediated Interfaces for Selective Urea Electrolysis

Advanced Functional Materials, EarlyView.
Sulfur‐doped graphitized carbon nanofibers act as adaptive catalyst–support platforms, enabling dynamic sulfur‐mediated reconstruction and strong metal–support interactions. This unique behavior enhances catalyst stability and controls reaction pathways, achieving highly selective urea oxidation (∼92% N2) coupled with efficient hydrogen evolution ...
Melanie Guillén‐Soler, Lucía Vizcaíno‐Anaya, Ahmad Tayyebi, José Manuel Vila‐Fungueiriño, María del Carmen Giménez‐López   +4 more
wiley   +1 more source

Noninvasive monitoring of fibre fermentation in healthy volunteers by analyzing breath volatile metabolites: lessons from the FiberTAG intervention study

Gut Microbes, 2021
The fermentation of dietary fibre (DF) leads to the production of bioactive metabolites, the most volatile ones being excreted in the breath.
Audrey M. Neyrinck, Julie Rodriguez, Zhengxiao Zhang, Benjamin Seethaler, Florence Mailleux, Joeri Vercammen, Laure B. Bindels, Patrice D. Cani, Julie-Anne Nazare, Véronique Maquet, Martine Laville, Stephan C. Bischoff, Jens Walter, Nathalie M. Delzenne   +13 more
doaj   +1 more source