Interaction of Poly(ethylene glycol) Monoalkyl Ethers with Synthetic Saponites in Aqueous Suspensions:  A Multinuclear Magnetic Resonance Study

Langmuir ◽  
1998 ◽  
Vol 14 (5) ◽  
pp. 1037-1040 ◽  
Author(s):  
J. Grandjean
Keyword(s):  
Magnetic Resonance ◽  
Ethylene Glycol ◽  
Poly Ethylene Glycol ◽  
Magnetic Resonance Study ◽  
Aqueous Suspensions ◽  
Poly Ethylene ◽  
Multinuclear Magnetic Resonance

Electron Magnetic Resonance Study on the Mobility of Nitroxide Spin Probes in the Dipalmitoylphosphatidylcholine Lipid Bilayers: Effect of Poly(ethylene glycol)

Langmuir ◽  
1998 ◽  
Vol 14 (18) ◽  
pp. 5184-5187 ◽  
Author(s):  
Don Keun Lee ◽  
Jin Soo Kim ◽  
Young Min Lee ◽  
Young Soo Kang ◽  
Byung Kyu Kim
Keyword(s):  
Magnetic Resonance ◽  
Ethylene Glycol ◽  
Lipid Bilayers ◽  
Electron Magnetic Resonance ◽  
Spin Probes ◽  
Poly Ethylene Glycol ◽  
Magnetic Resonance Study ◽  
Poly Ethylene ◽  
Nitroxide Spin Probes

Nuclear magnetic resonance study of drawn poly(ethylene glycol)

1968 ◽  
Vol 6 (3) ◽  
pp. 653-656 ◽  
Author(s):  
Kunio Hikichi ◽  
Toshiyuki Shibata ◽  
Akihiro Tsutsumi ◽  
Jiro Furuichi
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Ethylene Glycol ◽  
Nuclear Magnetic Resonance Study ◽  
Poly Ethylene Glycol ◽  
Magnetic Resonance Study ◽  
Poly Ethylene ◽  
Nuclear Magnetic

scholarly journals Poly(ethylene glycol)-alendronate coated nanoparticles for magnetic resonance imaging of lymph nodes

2018 ◽  
Vol 27 (5-6) ◽  
pp. 659-669 ◽  
Author(s):  
Sofia Bisso ◽  
Anna Degrassi ◽  
Davide Brambilla ◽  
Jean-Christophe Leroux
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Ethylene Glycol ◽  
Lymph Nodes ◽  
Resonance Imaging ◽  
Poly Ethylene Glycol ◽  
Coated Nanoparticles ◽  
Poly Ethylene

Swelling behaviour of hydrogels from methacrylic acid and poly(ethylene glycol) side chains by magnetic resonance imaging

2007 ◽  
Vol 56 (4) ◽  
pp. 506-511 ◽  
Author(s):  
Alberto Prior-Cabanillas ◽  
José M Barrales-Rienda ◽  
Gloria Frutos ◽  
Isabel Quijada-Garrido
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Ethylene Glycol ◽  
Methacrylic Acid ◽  
Side Chains ◽  
Resonance Imaging ◽  
Poly Ethylene Glycol ◽  
Swelling Behaviour ◽  
Poly Ethylene

13C/7Li Solid-State Nuclear Magnetic Resonance Study on Poly(Ethylene Glycol)-Poly(Propylene Glycol)-Poly(Ethylene Glycol)/LiCF3SO3 Copolymer Electrolytes

2020 ◽  
Vol 982 ◽  
pp. 26-33
Author(s):  
Ling Wei ◽  
Da Wei Li
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Solid State ◽  
Magnetic Resonance ◽  
High Resolution ◽  
Ethylene Glycol ◽  
Phase Structure ◽  
Poly Ethylene Glycol ◽  
Chain Dynamics ◽  
Poly Ethylene ◽  
Nuclear Magnetic

Solid-state high-resolution 13C/7Li nuclear magnetic resonance (NMR) study was performed on the phase structure and chain dynamics of PEG-PPG-PEGn/LiCF3SO3 (n=3, 6, 12) copolymer electrolytes. PEG repeating units and Li+ form PEG3:LiCF3SO3 crystalline complex and PE3/Li+ amorphous complex in all the samples. PPG repeating units and Li+ form different complexes with respect to O:Li+ feed ratio (denoted as PP/Li+-3/6/12). The 13C chemical shifts and half widths of the signals from PP/Li+-3/6/12 remain unchanged, which implies the structures of PP/Li+-3/6/12 are similar at least in a very short range. The half width of the 7Li signals from PP/Li+-3/6/12 becomes narrower and narrower as the Li+ concentration decreases. This indicates the chain mobility of the amorphous phase increases with the decrease of ionic concentration. Moreover, neat crystalline PEG, neat amorphous PEG and neat amorphous PPG start to appear when O:Li+ is greater than 3:1 and their contents increase with the increase of O:Li+. Overall, solid-state high-resolution NMR is a powerful and unique method for understanding the phase structure and chain dynamics of solid polymer electrolytes (SPEs), more applications of this technique to studies on SPEs is expecting.

scholarly journals Synthesis of Superparamagnetic Iron Oxide Nanoparticles Modified with MPEG-PEI via Photochemistry as New MRI Contrast Agent

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Yancong Zhang ◽  
Lianying Zhang ◽  
Xinfeng Song ◽  
Xiangling Gu ◽  
Hanwen Sun ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Magnetic Resonance ◽  
Ethylene Glycol ◽  
Iron Oxide Nanoparticles ◽  
Methyl Ether ◽  
Superparamagnetic Iron Oxide ◽  
Oxide Nanoparticles ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene ◽  
Glycol Methyl Ether

Novel method for synthesis of superparamagnetic iron oxide nanoparticles (SPIONs) coated with polyethylenimine (PEI) and modified with poly(ethylene glycol) methyl ether (MPEG), MPEG-PEI-SPIONs, was developed. PEI-SPIONs were successfully prepared in aqueous system via photochemistry, and their surface was modified with poly(ethylene glycol) methyl ether (MPEG). The so-obtained MPEG-PEI-SPIONs had a uniform hydrodynamic particle size of 34 nm. The successful coating of MPEG-PEI on the SPIONs was ascertained from FT-IR analysis, and the PEI and MPEG fractions in MPEG-PEI-SPIONs were calculated to account for 31% and 12%, respectively. Magnetic measurement revealed that the saturated magnetization of MPEG-PEI-SPIONs reached 46 emu/g and the nanoparticles showed the characteristic of being superparamagnetic. The stability experiment revealed that the MPEG-PEI modification improved the nanoparticles stability greatly.T2 relaxation measurements showed that MPEG-PEI-SPIONs show similarR2 value to the PEI-SPIONs. TheT2-weighted magnetic resonance imaging (MRI) of MPEG-PEI-SPIONs showed that the magnetic resonance signal was enhanced significantly with increasing nanoparticle concentration in water. These results indicated that the MPEG-PEI-SPIONs had great potential for application in MRI.

Cross-linked magnetic nanoparticles from poly(ethylene glycol) and dodecyl grafted poly(succinimide) as magnetic resonance probes

2011 ◽  
Vol 47 (46) ◽  
pp. 12518 ◽  
Author(s):  
Hee-Man Yang ◽  
Chan Woo Park ◽  
Sujin Lim ◽  
Sung-Il Park ◽  
Bong Hyun Chung ◽  
...  
Keyword(s):  
Magnetic Nanoparticles ◽  
Magnetic Resonance ◽  
Ethylene Glycol ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene

scholarly journals Delayed hepatic uptake of multi-phosphonic acid poly(ethylene glycol) coated iron oxide measured by real-time magnetic resonance imaging

RSC Advances ◽  
2016 ◽  
Vol 6 (68) ◽  
pp. 63788-63800 ◽  
Author(s):  
G. Ramniceanu ◽  
B.-T. Doan ◽  
C. Vezignol ◽  
A. Graillot ◽  
C. Loubat ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Iron Oxide ◽  
Magnetic Resonance ◽  
Ethylene Glycol ◽  
Hepatic Uptake ◽  
Resonance Imaging ◽  
Poly Ethylene Glycol ◽  
Iron Based ◽  
Magnetic Resonance Imaging Mri ◽  
Poly Ethylene

We report on the synthesis, characterization, stability and pharmacokinetics of novel iron based contrast agents for magnetic resonance imaging (MRI).

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