Results 51 to 60 of about 140,334 (356)

An accurate determination of the Avogadro constant by counting the atoms in a 28Si crystal

, 2010
The Avogadro constant links the atomic and the macroscopic properties of matter. Since the molar Planck constant is well known via the measurement of the Rydberg constant, it is also closely related to the Planck constant.
Andreas, B., Azuma, Y., Bartl, G., Becker, P., Bettin, H., Borys, M., Busch, I., Fuchs, P., Fujii, K., Fujimoto, H., Gray, M., Kessler, E., Krumrey, M., Kuetgens, U., Kuramoto, N., Mana, G., Manson, P., Massa, E., Mizushima, S., Nicolaus, A., Picard, A., Pramann, A., Rienitz, O., Schiel, D., Valkiers, S., Waseda, A.   +25 more
core   +1 more source

Nanoparticle Shape Dictates Catalytic Performance in Selective Hydrogenation of Butadiene Over Au‐Pd Core‐Shell Nanoparticles

Advanced Functional Materials, EarlyView.
Controlling the exposed crystal facet of shape‐controlled Au‐Pd core‐shell catalysts though colloidal synthesis enhances their catalytic performance in the industrially relevant selective hydrogenation of butadiene. ABSTRACT Selective hydrogenation of butadiene is a critical step in purification of alkene feedstocks for polymer production and is ...
Marta Perxés Perich, Jan‐Willem Lankman, Petra E. de Jongh, Jessi E. S. van der Hoeven   +3 more
wiley   +1 more source

Synthesis of Melamine-d6 and the Feasibility of Deuterium Labeled Compounds as Internal Standard

Journal of Isotopes, 2015
S-triazine is an important chemical intermediate. Melamine belongs to s-triazine, which has been widely used as an additive in the food industry. To study the stable isotope labeling method of heterocyclic triazine compounds and its application, one step
GUO Yang-zhen, REN Jing-xia, NING Jun, MEI Xiang-dong   +3 more
doaj   +1 more source

Establishment of an isotope dilution LC-MS/MS method revealing kinetics and distribution of co-occurring mycotoxins in rats [PDF]

, 2012
An isotope dilution liquid chromatography-tandem mass spectrometry (LC-MS/MS) method with a fast sample preparation using homemade clean-up cartridges was developed for simultaneous determination of co-occurring mycotoxins exemplified with aflatoxin B1 ...
De Saeger, Sarah, Han, Zheng, Liao, Yucai, Liu, Gang, Shi, Jianxin, Song, Suquan, Wu, Aibo, Wu, Yongjiang, Zhang, Dabing, Zhang, Jingbo, Zhao, Zhiyong   +10 more
core   +1 more source

Fluorescent Nanosensor for Indole‐3‐Propionic Acid Detection in Gut Health Monitoring

Advanced Healthcare Materials, EarlyView.
This work introduces a fluorescent nanosensor system with two optical modalities for detection of indole‐3‐propionic acid (IPA) gut metabolite: (1) blue‐emitting cationic conjugated polyelectrolyte (CP3) and (2) near‐infrared (NIR)‐emitting CP3‐wrapped single‐walled carbon nanotube (SWNT).
Mervin Chun‐Yi Ang, Jonathan Wei Jie Lee, Sayyid Mohaideen, Gabriel Sánchez‐Velázquez, Song Wang, Yangyang Han, Liu Lin, Germaine Yong, Raju Cheerlavancha, Duc Thinh Khong, Jianhong Ching, Sharon Hong Yu Han, Jun Yu Yeo, Lian Xu, Gajendra Pratap Singh, Michael S. Strano   +15 more
wiley   +1 more source

D3‐creatine dilution for skeletal muscle mass measurement: historical development and current status

Journal of Cachexia, Sarcopenia and Muscle, 2022
The French chemist Michel Eugène Chevreul discovered creatine in meat two centuries ago. Extensive biochemical and physiological studies of this organic molecule followed with confirmation that creatine is found within the cytoplasm and mitochondria of ...
Cassidy McCarthy, Dale Schoeller, Justin C. Brown, M. Cristina Gonzalez, Alyssa N. Varanoske, Devon Cataldi, John Shepherd, Steven B. Heymsfield   +7 more
doaj   +1 more source

Effects of acetate, propionate, and pH on volatile fatty acid thermodynamics in continuous cultures of ruminal contents

Journal of Dairy Science, 2022
: To investigate the effects of acetate, propionate, and pH on thermodynamics of volatile fatty acids (VFA) in the rumen, a dual-flow continuous culture study was conducted to quantify production of major VFA, interconversions among the VFA, and H2 and ...
Meng M. Li, S. Ghimire, B.A. Wenner, R.A. Kohn, J.L. Firkins, B. Gill, M.D. Hanigan   +6 more
doaj   +1 more source

Quantification of Nε-(2-Furoylmethyl)-L-lysine (furosine), Nε-(Carboxymethyl)-L-lysine (CML), Nε-(Carboxyethyl)-L-lysine (CEL) and total lysine through stable isotope dilution assay and tandem mass spectrometry [PDF]

, 2015
The control of Maillard reaction (MR) is a key point to ensure processed foods quality. Due to the presence of a primary amino group on its side chain, lysine is particularly prone to chemical modifications with the formation of Amadori products (AP), Nε-
Fiore, Alberto, Fogliano, Vincenzo, Troise, Antonio Dario, Wiltafsky, Markus   +3 more
core   +5 more sources

Weakly‐Coordinating Non‐Fluorinated Diluents for Local High‐Concentration Electrolytes in Advanced Lithium Metal Batteries

Advanced Materials, EarlyView.
This perspective critically evaluates non‐fluorinated diluents in local high‐concentration electrolytes, categorizing their solvation behavior, interfacial mechanisms, and sustainability potential to guide future electrolyte design for lithium metal batteries.
Yin Cui, Xinrui Li, Nan Jiang, Xinyan Huang, E. Lora da Silva, Ruo Zhao, Tao Yang, Qingxia Liu, Xidong Lin   +8 more
wiley   +1 more source

Magnetic Textiles: A Review of Materials, Fabrication, Properties, and Applications

Advanced Materials Technologies, EarlyView.
Magnetic textiles (M‐textiles) are emerging as a programmable materials platform that merges magnetic matter with hierarchical textile structures. This article consolidates magnetic material classes, textile architectures, and fabrication and magnetization strategies, revealing structure–property–function relationships that govern magneto‐mechanical ...
Li Ke, Moses Kumi, Xiaoming Tao, Junhong Pu   +3 more
wiley   +1 more source