Results 101 to 110 of about 184,530 (301)

Experimental Analysis of Pore and Permeability Characteristics of Coal by Low-Field NMR

Applied Sciences, 2018
On the basis of the complexity of the pore structure characteristics of a coal reservoir, coal samples with different ranks were selected to study the difference in pore structures and permeability using nuclear magnetic resonance (NMR), scanning ...
Xiaofeng Ji, Dangyu Song, Haotian Zhao, Yunbo Li, Kaikai He   +4 more
doaj   +1 more source

Magnesium incorporation into hydroxyapatite [PDF]

, 2010
The incorporation of Mg in hydroxyapatite (HA) was investigated using multinuclear solid state NMR, X-ray absorption spectroscopy (XAS) and computational modeling.
Jonathan C. Knowles, Robert J. Newport, Christel Gervais, Gervais, Christel, Bonhomme, C., Newport, Robert J., Smith, Mark,, Leeuw, Nora H. de, Francesco Mauri, Smith, Mark E., Neyvis Almora-Barrios, Christian Bonhomme, Nora H. de Leeuw, Wojciech Chrzanowski, Almora-Barrios, N., Mauri, F., Zhehong Gan, Knowles, J.C., Bonhomme, Christian, Newport, Robert, Knowles, Jonathan, Smith, Mark, E., Mark E. Smith, Knowles, Jonathan C., Wong, Alan, Laurencin, D., Almora-Barrios, Neyvis, Gan, Zhehong, Alan Wong, Smith, M.E., Chrzanowski, W., de Leeuw, Nora, H., Gervais, C., Danielle Laurencin, Laurencin, Danielle, de Leeuw, Nora H., Mauri, Francesco, de Leeuw, N.H., Chrzanowski, Wojciech, Wong, A., de Leeuw, Nora,, Gan, Z.   +41 more
core   +1 more source

Efficient high-field MAS-DNP NMR reveals hidden side chains in amyloid fibrils

, 2022
It has been widely observed in bioNMR experiments that many biological molecules contain flexible parts or side chains that do not yield easily observable NMR signals in room-temperature experiments. The reasons for the missing peaks could be because the
Jayakrishna, Shenoy, Antoine, Loquet, Nicolas, Birlirakis, Kong Ooi, Tan, Xinyi, Cai, Muhammed, Bilal Abdul-Shukkoor, Yangping, Liu, Fabien, Ferrage, Asen, Daskalov, Mélanie, Berbon, Alons, Lends   +10 more
core   +1 more source

Physicochemical Reinforcement Unlocks Sterilization‐Stable Anisotropic Hydrogels for Cell‐Compatible Mock Arteries

Advanced Healthcare Materials, EarlyView.
ABSTRACT In vitro arterial models offer ethical and robust alternatives for vascular research but require cytocompatible materials that replicate physiological mechanics. Poly(vinyl alcohol) (PVA) hydrogels produced by directional freezing and salting‐out (PVA DFSO) are anisotropic yet lack stability for cell culture. Herein, methacrylated PVA (PVA‐MA)
Javiera Sanhueza Ortega, Kirthen Shanmuganathan, Laura Poole‐Warren, Susann Beier, Ulises Aregueta Robles   +4 more
wiley   +1 more source

Cost effective power amplifiers for pulsed NMR sensors

, 2015
Sensors that measure magnetic resonance relaxation times are increasingly finding applications in areas such as food and drink authenticity and waste water treatment control.
Morris, RH, Michael Newton, Newton, MI, Theodore Hughes-Riley, Hughes-Riley, T, Robert Morris   +5 more
core   +1 more source

A Systematic Study of GelMA‐Carbopol Bioinks for High‐Fidelity Extrusion 3D Bioprinting at Physiological Temperatures

Advanced Healthcare Materials, EarlyView.
Gonzalez Martinez and collaborators develop a strategy to formulate high performance GelMA‐based bioinks with low solids contents. The resulting bioinks enable 3D bioprinting at 37 °C of high‐fidelity structures with tunable mechanical properties that support high cell viability and function.
David A. González‐Martínez, Aidee V. Arizpe Tafoya, Eduardo González‐Martínez, Mabel Barreiro Carpio, Laura Daniela Serrano Andrade, Christopher T. N. Chow, Mohammadhossein Dabaghi, Jeremy A. Hirota, Jose M. Moran‐Mirabal   +8 more
wiley   +1 more source

NMR RELAXATION METHODS TO DETECT PROTEIN DYNAMICS: EVALUATION OF ACCURACY, IMPROVEMENT OF THE METHODOLOGY, AND ITS APPLICATION [PDF]

, 2013
Proteins are dynamic molecules whose ability to undergo conformational changes and fluctuations can impact their biological function, such as enzyme catalysis and substrate recognition. Mutations or perturbations that do not significantly change protein
Myint, Wazo
core  

Simultaneous Electrochemical Detection of NGF and proNGF Under Native Conditions Using Molecularly Imprinted Polymers: Toward Point‐of‐Care Diagnosis of Alzheimer's Disease

Advanced Healthcare Materials, EarlyView.
This study relies on the development of a new sensor that can detect two closely related proteins involved in Alzheimer's disease at the same time. Unlike traditional methods, it works in natural conditions and does not require sample pretreatment. The device is highly sensitive and was successfully tested on patient samples, offering promises for ...
Giulia Siciliano, Alfredo De Cillis, Elena Clabassi, Francesco Ferrara, Maria Serena Chiriacò, Antonio Turco, Clarissa Loiola, Chiara Zecca, Maria Teresa Dell'Abate, Giancarlo Logroscino, Giuseppe Gigli, Francesca Malerba, Elisabetta Primiceri   +12 more
wiley   +1 more source

3D‐Printed Piezoionic/Bioelectronic Hydrogel for Electro‐Metabolic Regulation of Osteogenic Differentiation

Advanced Healthcare Materials, EarlyView.
A 3D‐printed piezoionic GPMx hydrogel enables stable electromechanical signal generation under mechanical loading, exhibiting long‐term durability and low fatigue. As a bioactive patch, it restores endogenous bioelectricity to stimulate osteogenesis via Ca2+ influx and mitochondrial activation, while simultaneously enabling label‐free alkaline ...
Sayan Deb Dutta, Myoung Joon Jeon, Youjin Seol, Ki‐Taek Lim   +3 more
wiley   +1 more source

Design and Implementation of NMR Permanent Magnet Precision Temperature Controller

Chinese Journal of Magnetic Resonance, 2018
Neodymium-iron-boron (NdFeB) permanent magnets always used to generate a static magnetic field in low field NMR spectrometers has poor temperature stability. Temperature fluctuations will affect the reliability of NMR experiments. In order to improve the
YANG Chang, CHEN Jun-fei, CHEN Li, ZHANG Zhi, FENG Ji-wen, CHEN Fang, LIU Chao-yang   +6 more
doaj   +1 more source