Results 31 to 40 of about 3,434,501 (302)

Unveiling the thermodynamic-kinetic trade-off effect on acid sites in zeolite-catalyzed alcohol dehydration

Nature Communications
Understanding the distinct roles of Brønsted and Lewis acid sites remains a great challenge in designing zeolite catalysts, as their coexistence often obscures mechanistic understanding.
Min Hu, Yueying Chu, Chao Wang, Wenjin Cai, Qiang Wang, Jun Xu, Feng Deng   +6 more
doaj   +1 more source

Magnetic properties of iron-filled hydrogel clusters: a model system for quantitative susceptibility mapping with MRI

Frontiers in Physics, 2023
Quantitative approaches in clinical Magnetic Resonance Imaging (MRI) benefit from the availability of adequate phantoms. Ideally, the phantom material should reflect the complexity of signals encountered in vivo.
Gisela E. Hagberg, Gisela E. Hagberg, Jörn Engelmann, Eberhard Göring, Enrique G. Cuña, Enrique G. Cuña, Klaus Scheffler, Klaus Scheffler   +7 more
doaj   +1 more source

Invisible but not inaccessible—Revealing transient oligomers formed by intrinsically disordered proteins with solution NMR and complementary methods

FEBS Letters, EarlyView.
Transient oligomers formed by intrinsically disordered proteins may be ‘invisible’ to direct detection yet remain accessible to solution NMR through equilibrium‐exchange measurements and pressure‐jump experiments. Complementary methods report on mass, stoichiometry, selected distance distributions, morphology, and internal packing.
Martin D. Gelenter, Ad Bax
wiley   +1 more source

Real-time motion and main magnetic field correction in MR spectroscopy using an EPI volumetric navigator [PDF]

, 2011
In population groups where subjects do not lie still during Magnetic Resonance Spectroscopy (MRS) scans, real-time volume of interest (VOI), frequency, and main magnetic field (B0) shim correction may be necessary.
Hess, Aaron T
core   +1 more source

Programmable macrophage-polarizing nanoparticles for MRI-guided early detection and treatment of pulmonary metastases

Journal of Nanobiotechnology
Metastatic lung cancer remains a leading cause of cancer-related mortality worldwide, underscoring the urgent need for early detection and intervention strategies.
Meiju Sui, Kairu Xie, Yingying Luo, Haiqiang Wang, Hao Sheng, Sen Yue, Xiaoxun Liu, Sha Li, Jung Soo Suk, Shizhen Chen, Daiqin Chen, Xin Zhou   +11 more
doaj   +1 more source

How structural disorder and polyelectrolyte properties of prothymosin α enable its large interactome

FEBS Letters, EarlyView.
In this review, complexes of the fully disordered and highly negatively charged prothymosin α are collected, described, and discussed. Linked to its poly‐electrostatic character, prothymosin α engages a large interactome through multiple different binding modes ranging from fully disordered complexes to short linear motif (SLiM)‐driven interactions ...
Ketty C. Tamburrini, Freia S. Buus, Benjamin Schuler, Birthe B. Kragelund   +3 more
wiley   +1 more source

Magnetic resonance imaging and spectroscopy for monitoring liver steatosis [PDF]

, 2008
Purpose: To compare noninvasive MRI and magnetic resonance spectroscopy (MRS) methods with liver biopsy to quantify liver fat ...
Emma J. Osland, Osland, Emma J., Gary J. Cowin, Elizabeth E. Powell, Purdie, David M., Ash, Susan, Andrew D. Clouston, Bauer, Judith D., Azmat Ali, Cowin, Gary J., Ali, Azmat, Powell, Elizabeth E., David M. Purdie, Jonsson, Julie R., Graham J. Galloway, Galloway, Graham J., Julie R. Jonsson, Judith D. Bauer, Susan Ash, Clouston, Andrew D.   +19 more
core   +1 more source

Extracellular matrix remodeling and immune reprogramming drive residual tumor progression of liver cancer after incomplete microwave ablation

Molecular Oncology, EarlyView.
Incomplete microwave ablation (iMWA) of liver cancer triggers a biphasic progression in residual tumors. At Day 3, the microenvironment is characterized by acute inflammatory responses and extracellular matrix (ECM) remodeling. By Day 14, a profound shift occurs toward oncogenic signal transduction and immunosuppression, marked by macrophage ...
Yu Liu, Yubei He, Nikolaus Berndt, Michael Mülleder, Kathrin Textoris‐Taube, Jing Guo, Matthias Stechele, Justus Ramtke, Shraga Nahum Goldberg, Lynn Jeanette Savic   +9 more
wiley   +1 more source

MRI-traceable Nanoenzyme for Cascade Catalysis-enhanced Immunotherapy

Chinese Journal of Magnetic Resonance
The immunosuppressive tumor microenvironment (ITME) poses a significant challenge to anti-tumor immunotherapy. Our research develops a novel nanoenzyme based on Mn2+ and endogenous hemin.
SUI Meiju, ZHANG Lei, WANG Ruifang, LUO Yingying, LI Sha, QIU Maosong, XU Qiuyi, CHEN Daiqin, CHEN Shizhen, ZHOU Xin   +9 more
doaj   +1 more source

Hitchhiker's guide to voxel segmentation for partial volume correction of in vivo magnetic resonance spectroscopy [PDF]

, 2016
Partial volume effects have the potential to cause inaccuracies when quantifying metabolites using proton magnetic resonance spectroscopy (MRS). In order to correct for cerebrospinal fluid content, a spectroscopic voxel needs to be segmented according to
Ramadan, Saadallah, Mountford, Carolyn, Quadrelli, Scott   +2 more
core   +1 more source