Results 41 to 50 of about 1,679 (172)

Benchtop magnetic particle relaxometer for detection, characterization and analysis of magnetic nanoparticles [PDF]

Physics in Medicine & Biology, 2018
This paper presents the design, construction, and testing of a magnetic particle relaxometer (MPR) to assess magnetic nanoparticle response to dynamic magnetic fields while subjected to a bias field. The designed MPR can characterize magnetic particles for use as tracers in magnetic particle imaging (MPI), with the variation of an applied bias field ...
Nicolas, Garraud, Rohan, Dhavalikar, Mythreyi, Unni, Shehaab, Savliwala, Carlos, Rinaldi, David P, Arnold   +5 more
openaire   +2 more sources

Paramagnetic salt and agarose recipes for phantoms with desired T1 and T2 values for low-field MRI. [PDF]

NMR Biomed
Recipes that use agarose mixed with one of four paramagnetic salts are developed (NiCl2 shown here), which can be used to create synthetic samples for field strengths below 0.55 T. The recipes' utility is demonstrated by targeting relaxation properties of five neurological tissues for fields ranging between 0.0065 and 0.55 T.
Jordanova KV, Fraenza CC, Martin MN, Tian Y, Shen S, Vaughn CE, Walsh KJ, Walsh C, Sappo CR, Ogier SE, Poorman ME, Teixeira RP, Grissom WA, Nayak KS, Rosen MS, Webb AG, Greenbaum SG, Witherspoon VJ, Keenan KE.   +18 more
europepmc   +2 more sources

Rapid Field-Cycling MRI using Fast Spin-Echo [PDF]

, 2013
The author acknowledges funding from the EPSRC through the Centre for Doctoral Training in Integrated Magnetic Resonance.Non peer reviewedPublisher ...
Broche, Lionel, Lurie, David John, Ross, P. James   +2 more
core  

Neuromuscular Blockade with Rocuronium Bromide Increases the Tolerance of Acute Normovolemic Anemia in Anesthetized Pigs [PDF]

, 2012
Background: The patient's individual anemia tolerance is pivotal when blood transfusions become necessary, but are not feasible for some reason. To date, the effects of neuromuscular blockade (NMB) on anemia tolerance have not been investigated. Methods:
A. Pape, B. Zwissler, Barton RG, Cain SM, Eisenberg E, Fontana JL, H. Kertscho, Habler OP, Haller M, Herweling A, Holt JP, Ickx BE, Kampe S, Kemming GI, Kim J, Koskolou MD, Levy PS, M. Lossen, Madjdpour C, Marik PE, McCall M, Meier J, Meier JM, Meier JM, Meier JM, Meisner FG, Messmer KF, Muldoon SM, Naguib M, O. Habler, O. Horn, P. Stein, Pape A, Pape A, Pape A, Perez V, Pittman RN, Richardson RS, Russell WC, S. Kutschker, Schumacker PT, van der Linden P, van der Linden P, van Woerkens EC, Vernon DD, Werlhof V, Zollinger A   +46 more
core   +1 more source

The surface accessibility of α-bungarotoxin monitored by a novel paramagnetic probe [PDF]

, 2011
The surface accessibility of {alpha}-bungarotoxin has been investigated by using Gd2L7, a newly designed paramagnetic NMR probe. Signal attenuations induced by Gd2L7 on {alpha}-bungarotoxin C{alpha}H peaks of 1H-13C HSQC spectra have been analyzed and ...
Bernini, A, Botta, M, Niccolai, N, Prischi, F, Spiga, O, Tong, AP-L, Venditti, V, Wong, W-T   +7 more
core  

Spatially Resolved Monitoring of Drying of Hierarchical Porous Organic Networks [PDF]

, 2016
Evaporation kinetics of water confined in hierarchal polymeric porous media is studied by low field nuclear magnetic resonance (NMR). Systems synthesized with various degrees of cross-linker density render networks with similar pore sizes but different ...
Acosta, Rodolfo Hector, Gomez, Cesar Gerardo, Mattea, Carlos, Monti, Gustavo Alberto, Silletta, Emilia Victoria, Stapf, Siegfried, Strumia, Miriam Cristina, Velasco, Manuel Isaac   +7 more
core   +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, Yu Qin, Xin Shi, Dylan M. Owen, Mark A. Green, James D. E. T. Wilton‐Ely   +5 more
wiley   +1 more source

The Effect of Pressure on the Mechanical Properties of Polymers [PDF]

, 1977
Stress relaxation measurements were made as a function of temperature and hydrostatic pressure on two lightly filled elastomers (Hypalon 40 and Viton B), one highly filled elastomer (Neoprene WB), and on an EPDM rubber.
Fillers, R. W., Tschoegl, N. W.
core   +1 more source

Impact of biopolymer matrices on relaxometric properties of contrast agents [PDF]

, 2016
Properties of water molecules at the interface between contrast agents (CAs) for magnetic resonance imaging and macromolecules could have a valuable impact on the effectiveness of metal chelates.
Netti, Paolo Antonio, Ponsiglione, Alfonso Maria, Russo, Maria, Torino, Enza   +3 more
core   +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, Yolanda Piñeiro, Juan Gallo, Pedro Ramos‐Cabrer, Ramón Iglesias‐Rey, José Rivas, Manuel Bañobre‐López   +6 more
wiley   +1 more source