Electron Spin Resonance Imaging (ESRI) of Transport Processes in Polymeric Systems

Schlick, Shulamith; Eagle, Paul J.; Kruczała, Krzysztof; Pilař, Jan

doi:10.1002/9783527611843.ch17

Cited by 6 publications

(2 citation statements)

References 16 publications

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“…This spatial information is obtained by ESR imaging, ESRI. 73,74 As for the better-known NMR-imaging experiment (MRI), a magnetic field gradient is required for ESRI. 37,75,76 A magnetic field gradient is simply a linear variation with the position of the applied magnetic field strength.…”

Section: Esr Imagingmentioning

confidence: 99%

Electron spin resonance spectroscopy in drug delivery

Martini

Ciani

2009

Phys. Chem. Chem. Phys.

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The finding of non-viral carriers for the delivery and release of pharmaceutical and biological compounds to ill organs and tissues is one of the most widely investigated topic in medicinal and biological chemistry in the last decades. Prior to being used as drug vehicles in the living organisms, all of the new carriers are required to be fully characterized from a physico-chemical point of view, with respect to stability, charge, size, mobility, etc. To this aim, several molecular and bulky techniques have been employed for characterization. This review considers the results obtained with a molecularly oriented spectroscopic method, i.e. electron spin resonance (ESR). The application of this technique in its various forms derived from continuous-wave (cw-ESR) and pulsed-wave (pw-ESR) modes are reviewed. In particular, carriers such as liposomes (intended for gene therapy, boron neutron capture therapy, oxymetry, and others), micelles, hydrogels, nanoparticles, dendrimers, cyclodextrins and cucurbit[n]urils are considered.

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Section: Esr Imagingmentioning

confidence: 99%

Electron spin resonance spectroscopy in drug delivery

Martini

Ciani

2009

Phys. Chem. Chem. Phys.

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“…17 The time evolution of the concentration profile of paramagnetic diffusants within a swollen network has been determined using electron spin resonance (ESR) imaging. 18 NMR imaging has been used to follow the separate uptake of acetone and methanol in polycarbonate exposed to mixtures of the two solvents. 19,20 In principle, it should be possible to obtain the separate concentration profiles using these techniques.…”

Section: Introductionmentioning

confidence: 99%

Swelling and Transport in Polyisoprene Networks Exposed to Benzene−Cyclohexane Mixtures: A Case Study in Multicomponent Diffusion

et al. 1998

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Equilibrium uptake data for cross-linked polyisoprene networks exposed to benzenecyclohexane mixtures are presented: the data show that the equilibrium swelling ratio is increased by the presence of the second solvent and display virtually no evidence of selective uptake from the mixture. Both features agree qualitatively with a Flory-Rehner description of swelling generalized to a binary mixture. Pulsed-field-gradient spin-echo NMR results for the self-diffusion coefficients of benzene and cyclohexane within the swollen networks are also obtained: they indicate that the self-diffusion coefficient of cyclohexane is significantly enhanced by the presence of benzene. These results are correlated with the results of simple sorption (weight uptake) experiments for cross-linked polyisoprene spheres exposed to the same solvents. In particular, the mutual diffusion coefficients that can be extracted from the sorption data reflect the trends found in the self-diffusion coefficients results.

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1D and 2D Electron Spin Resonance Imaging (ESRI) of Transport and Degradation Processes in Polymers

Motyakin

Schlick

2004

EPR: Instrumental Methods

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Electron Spin Resonance Imaging (ESRI) of Transport Processes in Polymeric Systems

Cited by 6 publications

References 16 publications

Electron spin resonance spectroscopy in drug delivery

Electron spin resonance spectroscopy in drug delivery

Swelling and Transport in Polyisoprene Networks Exposed to Benzene−Cyclohexane Mixtures: A Case Study in Multicomponent Diffusion

1D and 2D Electron Spin Resonance Imaging (ESRI) of Transport and Degradation Processes in Polymers

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