The nanostructures of ionic liquids (ILs) have been the focus of considerable research attention in recent years. Nevertheless, the nanoscale structures of ILs in the presence of polymers have not been described in detail at present. In this study, nanostructures of ILs disturbed by poly(vinylidene fluoride) (PVdF) were investigated via high-pressure infrared spectra.
View Article and Find Full Text PDFMixtures of polyethylene oxide (PEO, M.W.~900,000) and imidazolium ionic liquids (ILs) are studied using high-pressure Fourier-transform infrared spectroscopy.
View Article and Find Full Text PDFThe nanoscale ion ordering of ionic liquids at confined interfaces under high pressures was investigated in this study. 1-Hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([HMIM][NTf])/poly(vinylidene fluoride-co-hexafluoropropylene) (PVdF-co-HFP) and 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([EMIM][NTf])/PVdF-co-HFP were prepared and characterized by using high-pressure infrared spectroscopy. Under ambient pressure, imidazolium C-H and C-H absorptions were blue-shifted in frequency due to the presence of PVdF-co-HFP.
View Article and Find Full Text PDF1-Butyl-3-methylimidazolium hexafluorophosphate ([CMIM][PF])/DNA and 1-methyl-3-propylimidazolium hexafluorophosphate ([CMIM][PF])/DNA mixtures were prepared and characterized by high-pressure infrared spectroscopy. Under ambient pressure, the imidazolium C-H and C-H absorption bands of [CMIM][PF]/DNA mixture were red-shifted in comparison with those of pure [CMIM][PF]. This indicates that the C-H and C-H groups may have certain interactions with DNA that assist in the formation of the ionic liquid/DNA association.
View Article and Find Full Text PDFJ Hand Surg Asian Pac Vol
December 2019
This study investigated the functional outcomes of intramuscular ulnar nerve transposition (IMUNT) in young adults with cubital tunnel syndrome (CuTS). This retrospective study enrolled 37 military soldiers on active duty diagnosed with and treated for CuTS to determine the compression sites, complication rate, and postoperative results. Patient outcomes were analyzed using the Disability of the Arm, Shoulder, and Hand (DASH) questionnaire and the Bishop-Kleinman rating scales.
View Article and Find Full Text PDFNanomaterials (Basel)
April 2019
The effect of confining ionic liquids (ILs) such as 1-ethyl-3-methylimidazolium tetrafluoroborate [CCIm][BF] or 1-butyl-3-methylimidazolium tetrafluoroborate [CCIm][BF] in silica matrices was investigated by high-pressure IR spectroscopy. The samples were prepared via the sol-gel method, and the pressure-dependent changes in the C-H absorption bands were investigated. No appreciable changes were observed in the spectral features when the ILs were confined in silica matrices under ambient pressure.
View Article and Find Full Text PDFComput Math Methods Med
August 2014
The aging phenomenon results in body organ system debilitating, which causes the balance weakening and makes a fall, fracture rate, and further medical cost to increase. The lack of exercise has been linked to increasing the incidence of hypertension, coronary artery disease, osteoporosis, degenerative arthritis, and diabetes. Chronic disease affects patients both in psychological and physiological functions which limit their daily activity.
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