Time-of-flight remote detection MRI of thermally modified wood

Telkki, Ville‐Veikko; Saunavaara, Jani; Jokisaari, Jukka

doi:10.1016/j.jmr.2009.10.002

Cited by 17 publications

(17 citation statements)

References 24 publications

(35 reference statements)

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“…HP Xe RD MRI has been used for imaging flow through porous materials, [224, 228] rocks, [227] microfluidic devices, [226] and wood, [229] as well as for quantifying diffusion through membranes. [230] Figure 14b shows a remarkable example of 3D TOF images of HP Xe flowing through a rock sample.…”

Section: Remote-detection Mri Of Hyperpolarized Gasesmentioning

confidence: 99%

NMR Hyperpolarization Techniques of Gases

Barskiy

Coffey

Nikolaou

et al. 2016

Chemistry A European J

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145

113

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Nuclear spin polarization can be significantly increased through the process of hyperpolarization, leading to an increase in the sensitivity of nuclear magnetic resonance (NMR) experiments by 4–8 orders of magnitude. Hyperpolarized gases, unlike liquids and solids, can be more readily separated and purified from the compounds used to mediate the hyperpolarization processes. These pure hyperpolarized gases enabled many novel MRI applications including the visualization of void spaces, imaging of lung function, and remote detection. Additionally, hyperpolarized gases can be dissolved in liquids and can be used as sensitive molecular probes and reporters. This mini-review covers the fundamentals of the preparation of hyperpolarized gases and focuses on selected applications of interest to biomedicine and materials science.

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Section: Remote-detection Mri Of Hyperpolarized Gasesmentioning

confidence: 99%

NMR Hyperpolarization Techniques of Gases

Barskiy

Coffey

Nikolaou

et al. 2016

Chemistry A European J

Self Cite

145

113

View full text Add to dashboard Cite

show abstract

“…Time-of-flight flow imaging with HP gases HP Xe is an ideal probe fluid in RD MRI experiments, because the T1 relaxation time of 129 Xe can be extremely long, allowing correspondingly long transport times from the sample to the detector. HP Xe RD MRI has been used for imaging flow through porous materials, [223,227] rocks, [226] microfluidic devices, [225] and wood, [228] as well as for quantifying diffusion through membranes. [229] Figure 14b shows a remarkable example of 3D TOF images of HP Xe flowing through a rock sample.…”

Section: Remote-detection Mri Of Hyperpolarized Gasesmentioning

confidence: 99%

NMR Hyperpolarization Techniques of Gases

Barskiy

Coffey

Nikolaou

et al. 2016

Chemistry A European J

Self Cite

View full text Add to dashboard Cite

Nuclear spin polarization can be significantly increased through the process of hyperpolarization, leading to an increase in the sensitivity of nuclear magnetic resonance (NMR) experiments by 4-8 orders of magnitude. Hyperpolarized gases, unlike liquids and solids, can be more readily separated and purified from the compounds used to mediate the hyperpolarization processes. These pure hyperpolarized gases enabled many novel MRI applications including the visualization of void spaces, imaging of lung function, and remote detection. Additionally, hyperpolarized gases can be dissolved in liquids and can be used as sensitive molecular probes and reporters. This mini-review covers the fundamentals of the preparation of hyperpolarized gases and focuses on selected applications of interest to biomedicine and materials science.

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“…24 Xenon gas was used as a probe fluid, because the flow resistance of a gas is smaller than that of a liquid, and the sensitivity enhancement given by the spin-exchange optical pumping (SEOP) method as well as the long T 1 relaxation time of 129 Xe make xenon a favorable gas for RD experiments. Hyperpolarized xenon gas was forced to flow through a wood sample and flow around the sample was blocked (Figure 11b).…”

Section: Remote Detection Mrimentioning

confidence: 99%

Wood Characterization by NMR & MRI of Fluids

Telkki¹

2012

Encyclopedia of Magnetic Resonance

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This article gives the reader an overview of NMR and MRI of fluids in wood. It does not cover solid-state NMR methods, such as CP MAS, that give chemically resolved information about solid wood macromolecules. The most important fluid naturally existing in wood is water, and the article provides an overview of the relaxation spectrum of water components. NMR and MRI methods used for determining the moisture content and distribution are also reviewed. NMR of fluids absorbed in wood or flowing through wood provide detailed information about the microstructure of wood, and the article summarizes wood structure characterization by means of pulsed-field gradient spin-echo NMR (PGSE NMR), NMR cryoporometry, and remote detection MRI of fluids.

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Time-of-flight remote detection MRI of thermally modified wood

Cited by 17 publications

References 24 publications

NMR Hyperpolarization Techniques of Gases

NMR Hyperpolarization Techniques of Gases

NMR Hyperpolarization Techniques of Gases

Wood Characterization by NMR & MRI of Fluids

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