Results 41 to 50 of about 1,303,827 (253)

Software Defined Radio (SDR) and Direct Digital Synthesizer (DDS) for NMR/MRI Instruments at Low-Field

Sensors, 2013
A proof-of-concept of the use of a fully digital radiofrequency (RF) electronics for the design of dedicated Nuclear Magnetic Resonance (NMR) systems at low-field (0.1 T) is presented. This digital electronics is based on the use of three key elements: a
Aktham Asfour, Kosai Raoof, Jean-Paul Yonnet   +2 more
doaj   +1 more source

Arginine methylation as a regulatory ratchet in cancer: From substrate selection to malignant‐state stabilization

Molecular Oncology, EarlyView.
Arginine methylation can be viewed as a persistence‐prone post‐translational modification regulated by a network of PRMTs. Competitive and compensatory interactions among PRMTs can redistribute methylation across substrate pools shaped by sequence, structural, spatial, and environmental layers, reinforcing RNA‐processing, chromatin, and signaling ...
So Hyun Kwon, Ji Min Lee
wiley   +1 more source

Water partitioning and migration in unsaturated bentonites by low‐field NMR characterization

Vadose Zone Journal, 2023
Water behavior in bentonite clay pores is influenced by soil–water interaction mechanisms such as capillary and adsorptive forces. Quantitative measurement of these water statuses remains challenging, leading to the adoption of advanced techniques.
Ling Peng, Fan Zhang, Yi Dong, Chi Zhang
doaj   +1 more source

NMR Magnetometer Based on Dynamic Nuclear-Polarization for Low-Strength Magnetic Field Measurement

Sensors, 2023
Nuclear magnetic resonance (NMR) magnetometers are considered due to their ability to map magnetic fields with high precision and calibrate other magnetic field measurement devices.
Taoning Guo, Wei He, Cai Wan, Yuxiang Zhang, Zheng Xu   +4 more
doaj   +1 more source

SPHINX31 acts as a SRPK1 inhibitor targeting the ATR/DNA‐PKcs/CHK1 replicative checkpoint to inhibit cell growth in non‐small cell lung cancer

Molecular Oncology, EarlyView.
The kinase SRPK1 directly interacts with the protein TOPBP1 and regulates the pre‐mRNA splicing of WIZ thereby contributing to the activation of the ATR/CHK1 replicative checkpoint in response to replicative stress. This allows cancer cells' genomic stability and survival.
Amani Shreim, Aurelie Genoux, Nadiia Zubchuk, Haoyang Zheng, Perla Salameh, Theo Ziegelmeyer, Fabien Dalonneau, Margot Rouchette, Christiane Oddou, Simona Miron, Helene Polveche, Adiilah Mamode Cassim, Carmen Garrido, Eleni Nikolakaki, Didier Auboeuf, Tao Jia, Sophie Zinn‐Justin, Beatrice Eymin   +17 more
wiley   +1 more source

Benchtop NMR Coupled with Chemometrics: A Workflow for Unveiling Hidden Drug Ingredients in Honey-Based Supplements

Molecules
Recently, benchtop nuclear magnetic resonance (NMR) spectrometers utilizing permanent magnets have emerged as versatile tools with applications across various fields, including food and pharmaceuticals.
Camille Pujol, Saïda Danoun, Ghislaine Biasini, Emmanuel Retailleau, Jessica Masson, Stéphane Balayssac, Véronique Gilard   +6 more
doaj   +1 more source

Detection of Virgin Olive Oil Adulteration Using Low Field Unilateral NMR

Sensors, 2014
The detection of adulteration in edible oils is a concern in the food industry, especially for the higher priced virgin olive oils. This article presents a low field unilateral nuclear magnetic resonance (NMR) method for the detection of the adulteration
Zheng Xu, Robert H. Morris, Martin Bencsik, Michael I. Newton   +3 more
doaj   +1 more source

Application of Benchtop NMR for Metabolomics Study Using Feces of Mice with DSS-Induced Colitis

Metabolites, 2023
Nuclear magnetic resonance (NMR)-based metabolomics, which comprehensively measures metabolites in biological systems and investigates their response to various perturbations, is widely used in research to identify biomarkers and investigate the ...
Zihao Song, Yuki Ohnishi, Seiji Osada, Li Gan, Jiaxi Jiang, Zhiyan Hu, Hiroyuki Kumeta, Yasuhiro Kumaki, Yuki Yokoi, Kiminori Nakamura, Tokiyoshi Ayabe, Kazuo Yamauchi, Tomoyasu Aizawa   +12 more
doaj   +1 more source

Smooth deconvolution of low-field NMR signals

Analytica Chimica Acta
Low resolution nuclear magnetic resonance (LR-NMR) is a common technique to identify the constituents of complex materials (such as food and biological samples). The output of LR-NMR experiments is a relaxation signal which can be modelled as a type of convolution of an unknown density of relaxation times with decaying exponential functions, plus ...
Gianluca Frasso, Paul H.C. Eilers
openaire   +2 more sources

Guiding AlphaFold to predict how Munc13‐1 opens Syntaxin‐1

FEBS Open Bio, EarlyView.
The syntaxin‐1 Habc‐domain (orange), linker (pink) and SNARE motif (yellow) form a closed conformation that binds to Munc18‐1 (violet) and is opened by the Munc13‐1 MUN domain (cyan) to form the SNARE complex that triggers neurotransmitter release.
Madhurima Chattopadhyay, Junjie Xu, Josep Rizo   +2 more
wiley   +1 more source