Results 31 to 40 of about 698 (138)
Advanced Functional Materials, Volume 36, Issue 25, 26 March 2026.This work reports the first gram‐scale solvothermal synthesis of ‘Rubik's cube’ nanoparticles—cubic, dendritic multicore structures with tuneable sizes and exceptional magnetic heating performance. Featuring iron oxide single‐domain character, with low coercivity fields, high magnetization, and strong MPI signals, they enable viscosity‐independent ...
Giusy M. R. Rizzo +12 more
wiley +1 more source
Magnetic Resonance in Chemistry, Volume 64, Issue 3, Page 349-364, March 2026.Dose–response of biochar in a clay soil: fifteen mixtures (fBC 0–1) reveal nonlinear thresholds (pH/EC) and sharp WHC gains near fBC ≈ 0.3–0.5. Coupled FT‐IR and FFC‐NMR (0.01–10 MHz; ModelFree τc distributions) link water dynamics to soil functionality.
Calogero Librici +6 more
wiley +1 more source
Ligand‐Driven Optimization of Iron Oxide Nanoprobes for In Vivo MRI Enhancement at Ultra‐High Field
Small, Volume 22, Issue 16, 17 March 2026.Ligand‐tailored iron oxide nanoparticles reveal how surface chemistry controls T2 relaxivity and in vivo performance in ultra‐high‐field MRI. Systematic variation of hydrophilicity and charge across five coatings modulated r2 by up to 333 mm−1 s−1, with chemical properties, rather than shell thickness, dictating magnetic dephasing and enabling reliable
Pelayo García‐Acevedo +6 more
wiley +1 more source
Dual Modality Semiconducting Polymer Nanoparticles for Use in Optical and Magnetic Resonance Imaging
Advanced NanoBiomed Research, Volume 6, Issue 2, February 2026.Well‐defined dual‐modality semiconducting polymer nanoparticles composed of red‐emitting conjugated polymers functionalized with novel gadolinium‐based contrast agents have been prepared. The assemblies show a greatly enhanced relaxivity performance compared to the clinical standard, Dotarem, while offering ultrabright fluorescence, ideal for optical ...
Faysal A. Farah +5 more
wiley +1 more source
Construction of a Plate Relaxometer for Measurement of Viscoelasticity of Polymer Melt
The Journal of the Society of Chemical Industry, Japan, 1968 高分子溶融物の低弾性率にわたる応力緩和を測定する目的で,平板式応力緩和計(Plate Relaxometer)を試作した。測定原理は箱形のセル中の試料の中心にプレートをさしこみ, セルに瞬間的に一定の変位を与えて, プレートに発生するずり応力の時間的変化を測定するものである。装置の形状効果の消去できる条件を検討し, 緩和弾性率より他の粘弾性関数を評価し, 独立な方法により求めた実測値との比較を行なった。本装置によれば107dyne/cm2付近から102dyne/cm2付近にわたる緩和弾性率の測定が可能である。
Mitsuyoshi FUJIYAMA +2 more
openaire +2 more sources
Unveiling Dipolar Interaction‐Driven Magnetic Field Inhomogeneities in T2 MRI Contrast Agents
Advanced Science, Volume 13, Issue 3, 14 January 2026.In this study, chemically designed nanoscale‐distance‐tuned based on silica‐coated iron oxide nanoparticles are used to investigate how dipolar interactions affect magnetic resonance imaging (MRI) contrast. By varying shell thickness, researchers modulated dipolar interactions and observed an exponential increase in transverse relaxivity (r2) that ...
Pelayo García‐Acevedo +6 more
wiley +1 more source
ChemistryEurope, Volume 4, Issue 1, January 2026.In the family of Mn2+ complexes formed with pentadentate bispidine chelates, functional groups that do not interfere with metal coordination can play a significant role in enhancing kinetic inertness and proton relaxation efficacy. Mn2+ bispidine complexes combine unprecedented kinetic inertness with high relaxivity and are under scrutiny as potential ...
Maryame Sy +5 more
wiley +1 more source
Journal of Dairy Science: The aim of the study was to enquire to which extend 1H spin-lattice nuclear magnetic resonance (NMR) relaxometry data collected over a broad range of resonance frequencies (from 10 kHz to 10 MHz) have the potential to be used for assessing quality and ...
Monika Małkowska-Kowalczyk +3 more
doaj +1 more source
Chemistry – A European Journal, Volume 31, Issue 71, December 17, 2025.The fluorinated CDTA‐bisamide derivative ligand, L2, forms a stable and highly inert complex with Mn2+. MnL2 has one inner sphere water coordinated to the central metal ion, hence good proton relaxivity, and the paramagnetic metal ion induces important acceleration of 19F relaxation, provides good signal‐to‐noise ratios on 19F phantom UTE MR images ...
Zoltán Garda +4 more
wiley +1 more source
Water Molecular Dynamics During Dough Heating by Fast Field Cycling Nuclear Magnetic Resonance
Magnetic Resonance in Chemistry, Volume 63, Issue 11, Page 954-963, November 2025.Real time FFC measurements confirms the competition of water between gluten and starch granule, gluten hindering the starch water uptake and limits starch swelling in dough. ABSTRACT Measurements of the water 1H nuclear magnetic resonance (NMR) relaxation rate R1 in hydrated starch (SW), gluten (GW) and dough (DW) were performed at different ...
Corinne Rondeau‐Mouro +1 more
wiley +1 more source