Patent
Compact and portable low-field pulsed nmr dispersion analyzer
TLDR
A compact and integrated portable device for the analysis of dispersions by low-field pulsed NMR including an NMR probe module (A), a means for generating radio frequency and magnetic field gradient pulses (B), a signal processor (C), and a master controller (D) is described in this article.Abstract:
A compact and integrated portable device is provided for the analysis of dispersions by low-field pulsed NMR including an NMR probe module (A), a means for generating radio frequency and magnetic field gradient pulses (B), a signal processor (C), and a master controller (D) Also provided are methods for using the device to measure one or more characteristics of phases or particles comprising a dispersion such as surface area, solid/liquid ratio, particle size, and elemental analysisread more
Citations
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Journal ArticleDOI
Light scattering: A review of particle characterization applications
TL;DR: A review of light scattering applications in the field of particle characterization can be found in this paper, where the authors address static light scattering (the measurement of scattering intensities due to light-particle interaction at various spatial locations), dynamic light scattering, and scattering tracking analysis (the tracking of particle movement through scattering measurement).
Patent
NMR systems and methods for the rapid detection of analytes
Thomas Jay Lowery,Mark John Audeh,Matthew Blanco,James Franklin Chepin,Vasiliki Demas,Rahul Dhanda,Marilyn Lee Fritzemeier,Isaac Koh,Sonia Kumar,Lori Anne Neely,Brian Mozeleski,Daniella Lynn Plourde,Charles William Rittershaus,Parris S. Wellman +13 more
TL;DR: In this paper, the authors present systems and methods for the detection of analytes and their use in the treatment and diagnosis of disease using a set of tools and techniques, including a method for detecting analytes.
Patent
Nmr systems for in vivo detection of analytes
W. David Lee,David A. Berry +1 more
TL;DR: In this paper, superparamagnetic nanoparticles are exposed to a magnetic field and radio frequency (RF) excitation at or near the Larmor frequency, such that the aggregation and/or disaggregation of the nanoparticles caused by the presence and concentration of a given analyte in a biological fluid is detected in vivo from a monitored RF echo response.
Journal ArticleDOI
Increased adsorption of sulfamethoxazole on suspended carbon nanotubes by dissolved humic acid.
TL;DR: This study provided the first evidence in aqueous phase of the significantly increased surface area of DHA-suspended CNTs relative to the aggregated ones based on (1)H NMR relaxometry measurements.
Patent
Low-field magnetic resonance imaging methods and apparatus
Jonathan M. Rothberg,Matthew S. Rosen,Gregory L. Charvat,William J. Mileski,Todd Rearick,Michael Poole +5 more
TL;DR: In this paper, a laminate panel consisting of at least one non-conductive layer and at least two conductive layers was provided to form at least a portion of a B0 coil configured to contribute to a low-field magnetic resonance imaging (MRI).
References
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Journal ArticleDOI
Spin diffusion measurements : spin echoes in the presence of a time-dependent field gradient
E. O. Stejskal,J. E. Tanner +1 more
TL;DR: In this article, a derivation of the effect of a time-dependent magnetic field gradient on the spin-echo experiment, particularly in the presence of spin diffusion, is given.
Journal ArticleDOI
Rapid determination of water droplet size distributions by PFG-NMR
TL;DR: In this paper, Packer and Rees described a method for the determination of droplet size distributions in emulsions using the pulsed field gradient (PFG) NMR spin-echo technique.
Journal ArticleDOI
Measurement of Oil Droplet Size Distributions in Food Oil/Water Emulsions by Time Domain Pulsed Field Gradient NMR
TL;DR: Simulations show that for most common oil/water food emulsions the influence of droplet diffusion is negligible due to a rather large droplet size or a high viscosity of the continuous water phase.
Journal ArticleDOI
Evaluation of the precision of drop-size determination in oil/water emulsions by low-resolution NMR spectroscopy.
Pavletta Denkova,Slavka Tcholakova,Nikolai D. Denkov,Krassimir D. Danov,Bruce Campbell,Catherine Shawl,Dennis Ann Kim +6 more
TL;DR: The accuracy of the recently reported low-resolution NMR method for the determination of drop-size distribution in oil-in-water emulsions is evaluated by comparing the NMR results with precise data from video-enhanced optical microscopy.
Patent
Detecting tool motion effects on nuclear magnetic resonance measurements
TL;DR: An NMR measurement apparatus is potentially subject to relative motion between the measurement device and a sample as mentioned in this paper, and the results are then analyzed to determine an effect of the motion on the measurement.