Results 41 to 50 of about 4,831 (193)

A New Metal‐Ester Bonding Motif for the Synthesis of Hybrid Molecular Catalysts on Metal Oxide Supports Leads to Tunable Reactivity

Angewandte Chemie, EarlyView.
This work reports a new metal–ester bonding strategy for anchoring molecular catalysts to metal oxide supports, achieving exceptionally high surface loadings. Catalyst reactivity is predictably tuned by the support's properties, enabling control over electronic behavior and reaction pathways, thus opening new possibilities for designing highly ...
Joseph J. Kuchta III, Sarah M. Moody, Alexia M. Bradbury, D. M. S. C. Dissanayake, Laura C. Maybach, Santosh K. Balijepalli, John R. Regalbuto, Aaron K. Vannucci   +7 more
wiley   +2 more sources

Harvest time affects antioxidant capacity, total polyphenol and flavonoid content of Polish St John’s wort’s (Hypericum perforatum L.) flowers

Scientific Reports, 2021
The polyphenol content and antioxidant capacity of hyperforin and hypericin-standardized H. perforatum L. extracts may vary due to the harvest time. In this work, ethanol and ethanol–water extracts of air-dried and lyophilized flowers of H. perforatum L.,
Katerina Makarova, Joanna J. Sajkowska-Kozielewicz, Katarzyna Zawada, Ewa Olchowik-Grabarek, Michał Aleksander Ciach, Krzysztof Gogolewski, Natalia Dobros, Paulina Ciechowicz, Hélène Freichels, Anna Gambin   +9 more
doaj   +1 more source

Hyperpolarized 129Xe for benchtop NMR: Inline instrumentation for automated yet flexible operation yielding high polarization

Journal of Magnetic Resonance Open
The use of hyperpolarized media in combination with benchtop NMR spectrometers is currently extensively investigated to enable cost effective but highly sensitive applications.
Wolfgang Kilian, Samira Gulich, Thomas Riemer, Lorenz Mitschang   +3 more
doaj   +1 more source

Discovery and validation of an NMR-based metabolomic profile in urine as TB biomarker

Scientific Reports, 2020
Despite efforts to improve tuberculosis (TB) detection, limitations in access, quality and timeliness of diagnostic services in low- and middle-income countries are challenging for current TB diagnostics.
José Luis Izquierdo-Garcia, Patricia Comella-del-Barrio, Ramón Campos-Olivas, Raquel Villar-Hernández, Cristina Prat-Aymerich, Maria Luiza De Souza-Galvão, Maria Angeles Jiménez-Fuentes, Juan Ruiz-Manzano, Zoran Stojanovic, Adela González, Mar Serra-Vidal, Esther García-García, Beatriz Muriel-Moreno, Joan Pau Millet, Israel Molina-Pinargote, Xavier Casas, Javier Santiago, Fina Sabriá, Carmen Martos, Christian Herzmann, Jesús Ruiz-Cabello, José Domínguez   +21 more
doaj   +1 more source

SABRE hyperpolarization enables high-sensitivity ¹H and ¹³C benchtop NMR spectroscopy. [PDF]

Analyst, 2018
Benchtop NMR spectrometers operating with low magnetic fields of 1-2 T at sub-ppm resolution show great promise as analytical platforms that can be used outside the traditional laboratory environment for industrial process monitoring.
Richardson PM, Parrott AJ, Semenova O, Nordon A, Duckett SB, Halse ME.   +5 more
europepmc   +2 more sources

Functional group resolved NMR relaxation of 3-carbon adsorbates in mesoporous alumina

Magnetic Resonance Letters, 2023
NMR relaxation analysis provides a unique and non-invasive probe of fluid dynamics within porous materials, and may be applied to the interpretation of a wide variety of material and interfacial characteristics.
Neil Robinson, Carmine D’Agostino, Michael L. Johns   +2 more
doaj   +1 more source

Very First Application of Compact Benchtop NMR Spectrometers to Complex Biofluid Analysis and Metabolite Tracking for Future Metabolomics Studies: A Retrospective Decennial Report from November 2014

Applied Sciences
Herein we report the very first experiments which were conducted in an attempt to demonstrate the ability of low-field (LF), compact benchtop NMR spectrometers to provide spectral profiles of whole human biofluids, which took place in September–November ...
Martin Grootveld, Victor Ruiz-Rodado, Anna Gerdova, Mark Edgar   +3 more
doaj   +1 more source

Composition analysis of natural gas by combined benchtop NMR spectroscopy and mechanistical multivariate regression

Energy Reports, 2022
Natural gas is an essential energy source for a large variety of applications in today’s society. Forecasts predict that it will also play a vital role in decarbonizing the energy sector.
Anton Duchowny, Oliver Mohnke, Holger Thern, Pablo Matias Dupuy, Hege Christin Widerøe, Audun Faanes, Anfinn Paulsen, Markus Küppers, Bernhard Blümich, Alina Adams   +9 more
doaj   +1 more source

Template‐Confined Synthesis of Shape‐Engineered Single‐Crystal Gold Microplates in Lithographically‐Defined Polymeric Patterns

Advanced Functional Materials, EarlyView.
Single‐crystal gold microplates are high‐performance nanomaterials with an impressive wafer‐based application space. Progress has, however, been tempered by an inability to exert synthetic control over microplate size, shape, and positioning. In this work, control over these parameters is demonstrated using a seed‐mediated synthesis that both confines ...
Debasish Panda, Md Rashed Nizam, Walker J. Tuff, Collin C. Wyant, Maksym Zhukovskyi, Matthew R. Rosenberger, Botond Sánta, Edward C. Kinzel, Robert A. Hughes, Svetlana Neretina   +9 more
wiley   +1 more source

Novel diagnostic and analytical applications of benchtop time-domain NMR.

, 2023
High-resolution nuclear magnetic resonance (NMR) spectroscopy is a powerful technique, yet practical application outside of the research laboratory has been limited due to the high cost and complexity of the instrumentation.
Robinson, Michelle Denise, NC DOCKS at East Carolina University   +1 more
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