Results 41 to 50 of about 464,749 (232)

Towards chemical structure resolution with nanoscale nuclear magnetic resonance spectroscopy

, 2015
Nuclear magnetic resonance (NMR) spectroscopy has approached the limit of single molecule sensitivity, however the spectral resolution is currently insufficient to obtain detailed information on chemical structure and molecular interactions.
Du, Jiangfeng, Jelezko, Fedor, Kong, Xi, McGuinness, Liam P., Stark, Alexander   +4 more
core   +1 more source

Manifold Learning in MR spectroscopy using nonlinear dimensionality reduction and unsupervised clustering [PDF]

, 2014
Purpose To investigate whether nonlinear dimensionality reduction improves unsupervised classification of 1H MRS brain tumor data compared with a linear method. Methods In vivo single-voxel 1H magnetic resonance spectroscopy (55 patients) and 1H magnetic
Barrick, TR, Howe, FA, Raschke, F, Yang, G   +3 more
core   +1 more source

Electric Pulse Regulated MXene Based Nanozymes for Integrative Bioelectricity Immuno‐Cancer Therapy

Advanced Functional Materials, EarlyView.
MXenzyme‐mediated bioelectricity cancer therapy (MXenzyme‐BECT) enhances cancer cell death through irreversible depolarization, ion channel disruption, ROS generation, and immunogenic cell death. Computational simulations reveal the electrical mechanisms by which MXenzyme acts on single cells and support to predict treatment parameters. Next‐generation
Sanghee Lee, Seongchan Kim, Eui‐Sang Yu, Sian Lee, Min Jun Ko, Hyojin Lee, Dong‐Hyun Kim   +6 more
wiley   +1 more source

Polymer Brush Growth by Surface‐Initiated Ring‐Opening Polymerization from a Cross‐Linked Polymer Thin Film

Advanced Functional Materials, EarlyView.
A stable cross‐linked ultra‐thin polymer coating for surface‐initiated ring‐opening polymerization (SI‐ROP) of hexamethylcyclotrisiloxane and ε‐caprolactone for growth of high grafting density poly(dimethyl siloxane) and poly(caprolactone) brushes is developed.
Miguel Betancourt‐Ponce, Bharathan Govindarajan, Jacob Pike, Padma Gopalan   +3 more
wiley   +1 more source

Aggregation of metallochlorophylls - Examination by spectroscopy [PDF]

, 1969
Nuclear magnetic resonance measurements determine which metallochlorophylls, besides magnesium-containing chlorophylls, possess coordination aggregation properties.
Boucher, L. J., Katz, J. J.
core   +1 more source

A simple method for characterization of the magnetic field in an ion trap using Be+ ions

, 2014
We demonstrate a simple method for the determination of the magnetic field in an ion trap using laser-cooled Be+ ions. The method is not based on magnetic resonance and thus does not require delivering radiofrequency (RF) radiation to the trap.
Borodin, Andrii, Schiller, Stephan, Shen, Jianwei   +2 more
core   +1 more source

Making Photoresponsive Metal–Organic Frameworks an Effective Class of Heterogeneous Photocatalyst

Advanced Functional Materials, EarlyView.
This review summarizes photoresponsive MOFs for photocatalytic applications, focusing on their capacity to enhance light harvesting, charge transfer, and surface reactions. While existing studies provide foundational insights, emerging characterization techniques enable a deeper understanding of photoresponsive MOFs.
Rui Liu, Hao Wu, Hoi Ying Chung, Yun Hau Ng   +3 more
wiley   +1 more source

Elucidating Sodium Ion Storage Mechanisms in Hard Carbon Anodes at the Electronic Level

Advanced Functional Materials, EarlyView.
High‐resolution, multi‐frequency continuous wave, and pulsed Electron Paramagnetic Resonance (EPR) spectroscopy uncover the intricate Na ion storage mechanisms in hard carbon. This study reveals the coexistence of Na ion intercalation and solvent co‐intercalation, alongside a subsequent transition of Na ions from ionic to quasi‐metallic to metallic ...
Qingbing Xia, Cheng‐Lin Ko, Emily R. Cooper, Qinfen Gu, Ruth Knibbe, Jeffrey R. Harmer   +5 more
wiley   +1 more source

Terahertz Time-Domain Magnetospectroscopy of a High-Mobility Two-Dimensional Electron Gas

, 2007
We have observed cyclotron resonance in a high-mobility GaAs/AlGaAs two-dimensional electron gas by using the techniques of terahertz time-domain spectroscopy combined with magnetic fields.
Chou, Crooker, Daniel M. Mittleman, David J. Hilton, Du, Harde, Heyman, John L. Reno, Junichiro Kono, Lei Ren, Palik, Some, Studenikin, Xiangfeng Wang   +13 more
core   +2 more sources

A Close Look at the Local Structure of Functional Polymers: The Example of Poly(Vinylidene Fluoride)

Advanced Functional Materials, EarlyView.
To accurately develop structure‐property relationships in functional macromolecules, it is increasingly important to consider the local chain arrangement in addition to long‐range order. It is demonstrated in the case of poly(vinylidene fluoride) that solid‐state nuclear magnetic resonance (NMR) spectroscopy can provide detailed insights into the local
Henry J. Kantrow, Claire Welton, Neethu Thomas, Vincent Sarou‐Kanian, Tomasz Pawlak, Natalie Stingelin, G. N. Manjunatha Reddy   +6 more
wiley   +1 more source