Advances of unilateral mobile NMR in nondestructive materials testing

Blümich, Bernhard; Casanova, Federico; Perlo, Juan; Anferova, S.; Anferov, V. P.; Kremer, K.; Goga, N. O.; Kupferschläger, Klaus; Adams, Michael L.

doi:10.1016/j.mri.2004.11.058

Cited by 58 publications

(44 citation statements)

References 18 publications

(17 reference statements)

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“…(c) Gradient coil arrangement mounted in the gap of the unilateral MRI magnet of Fig. 7c (left) and slice-selective NMR image of a defect in a textile fibre reinforced rubber tube (right) [76,216,241,242]. The acquisition time for the 50 Â 50 pixel image with a field of view of 4 cm Â 4 cm was 2 h [241].…”

Section: Gradient Coilsmentioning

confidence: 99%

Mobile single-sided NMR

Blümich

Perlo

Casanova

2008

Progress in Nuclear Magnetic Resonance Spectroscopy

425

299

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Section: Gradient Coilsmentioning

confidence: 99%

Mobile single-sided NMR

Blümich

Perlo

Casanova

2008

Progress in Nuclear Magnetic Resonance Spectroscopy

425

299

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“…Non-destructive, in situ, low-field unilateral nuclear magnetic resonance (NMR) has been successfully applied to assess the condition of objects of cultural significance when sampling was not possible. To date, several studies have been undertaken in order to evaluate the porosity, the detachment of paint, and salt efflorescence in wall paintings [30][31][32]; to determine the state of degradation of paper [33][34][35][36]; the followup on consolidation treatments of porous building materials and wall paintings [36][37][38][39][40]; to study of the absorption and diffusion of water in acrylic paint films [41]; and to characterize stains on paper supports [42]. Moreover, depth profiling using the NMR MOUSE Ò has been applied in the non-invasive spatial tissue discrimination in the ancient mummies and bones [26] and, more recently, to study of the stratigraphy of ancient wall paintings and mosaics [39,40].…”

Section: Characterization and Identification Of Protein-based Bindersmentioning

confidence: 99%

In Situ Unilateral 1H-NMR Studies of the Interaction Between Lead White Pigments and Collagen-Based Binders

et al. 2011

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The lead white pigment, 2PbCO 3 ÁPb(OH) 2 , is thought to play a critical role in the degradation of paint in illuminated manuscripts. Cracking, flaking, and separation of paint films containing lead white on parchment and other works of art have been reported, and have been attributed to the interaction of the pigment with the binding media. A previous study by Fourier transform infrared spectroscopy showed lead white to induce a change in the state of hydration of protein-based binders, though the mechanism of this process is still not well understood. In this work, we apply in situ 1 H unilateral nuclear magnetic resonance (NMR) to explore the nature of the interaction between lead white and collagen-based binders while at the same time we evaluate the feasibility of applying unilateral 1 H-NMR to assess the condition of the paint in medieval-illuminated manuscripts and to follow up the effectiveness of consolidation treatments. Carr, Purcell, Meiboom, and Gill (CPMG) measurements reveal that the addition of lead white to binders derived from collagen, such as bone, rabbit skin or fish glues, increases the T 2eff relaxation constant of these binders. This effect is more pronounced at low relative humidity. The increase in T 2eff suggests that the pigment induces a change in the protein that leads

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“…In the characterization of polymers, unilateral NMR has been successfully used in the investigation of aging and cross-link density as a function of depth in elastomers and polyethylene [21][22][23][24][25]. The profile NMR-MOUSE Ò is made of four parallel magnets in a proper arrangement affirming that the NMR signal is collected from a thin and flat sensitive volume at a fixed distance above the magnet [26,27].…”

Section: Introductionmentioning

confidence: 99%

Time-Resolved Study of the Photo-Curing Process of Dental Resins with the NMR-MOUSE

et al. 2013

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The photo-curing reaction of dental resins has been examined with unilateral nuclear magnetic resonance (NMR-MOUSE) allowing nondestructive high-resolution measurement of depth profiles as a function of time and space. The NMR signal is sensitive to both the monomer concentration and changes in molecular mobility. Upon irradiation with blue light, it first increases due to molecular mobility enhanced by the reaction heat and then decreases exponentially with the monomer concentration as the polymer signal is lost in the dead time of the instrument upon curing. The space and time dependence of the NMR signal can be described by the photo-polymerization reaction kinetics together with a heuristic approximation of the temperature dependence.

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Advances of unilateral mobile NMR in nondestructive materials testing

Cited by 58 publications

References 18 publications

Mobile single-sided NMR

Mobile single-sided NMR

In Situ Unilateral 1H-NMR Studies of the Interaction Between Lead White Pigments and Collagen-Based Binders

Time-Resolved Study of the Photo-Curing Process of Dental Resins with the NMR-MOUSE

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