Article Abstract:
A study was conducted to examine the relaxation and chemical shifts of 139lanthanum in the aqueous nitrate and chloride solutions at 274-343 K. The activation energies of lanthanum were determined in both La(NO3)3-LiNO3 or -HNO3, and LaCl3-LiCl3 or -HCL systems. Results showed that chloride ions do not interact with lanthanum below 4.3 mol/L. Moreover, nitrate ions induce upfield shifts and chloride ions induce downfield shifts relative to the amount of hydrated lanthanum.
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Article Abstract:
Two-laser ion trap mass spectrometry and X-ray photoelectron spectroscopy were used to investigate the chemical modification of polystyrene thin films by 10-100 eV SF5+, C3F5+ and SO3 ions. Results showed that different mechanisms of fluorination were induced on the polymer surface by SF5+ and C3F5+ ions. Moreover, different aromatic and aliphatic fluorine bonding fields were present on both SF5+ and C3F5+ modified thin films.
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Article Abstract:
A study was conducted to analyze the fusion and spreading of phospholipid bilayers on glass surfaces as a function a pH and ionic strength. The influence of van der Waals and electrostatic interactions on the fusion process was investigated. Results indicated a framework for examining factors influencing the effectiveness of scratches on planar supported bilayers as barriers to lateral diffusion.
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