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Full-Text Articles in Physics
Characterization Of Cellular Uptake And Toxicity Of Aminosilane-Coated Iron Oxide Nanoparticles With Different Charges In Central Nervous System-Relevant Cell Culture Models, Zhizhi Sun, Vinith Yathindranath, Matthew Worden, James A. Thliveris, Stephanie Chu, Fiona E. Parkinson, Torsten Hegmann, Donald W. Miller
Characterization Of Cellular Uptake And Toxicity Of Aminosilane-Coated Iron Oxide Nanoparticles With Different Charges In Central Nervous System-Relevant Cell Culture Models, Zhizhi Sun, Vinith Yathindranath, Matthew Worden, James A. Thliveris, Stephanie Chu, Fiona E. Parkinson, Torsten Hegmann, Donald W. Miller
Torsten Hegmann
Background: Aminosilane-coated iron oxide nanoparticles (AmS-IONPs) have been widely used in constructing complex and multifunctional drug delivery systems. However, the biocompatibility and uptake characteristics of AmS-IONPs in central nervous system (CNS)-relevant cells are unknown. The purpose of this study was to determine the effect of surface charge and magnetic field on toxicity and uptake of AmS-IONPs in CNS-relevant cell types.
Shape-Persistent V-Shaped Mesogens-Formation Of Nematic Phases With Biaxial Order, Matthias Lehmann, Shin-Woong Kang, Christiane Köhn, Sönke Haseloh, Ute Kolb, Dieter Schollmeyer, Qingbing Wang, Satyendra Kumar
Shape-Persistent V-Shaped Mesogens-Formation Of Nematic Phases With Biaxial Order, Matthias Lehmann, Shin-Woong Kang, Christiane Köhn, Sönke Haseloh, Ute Kolb, Dieter Schollmeyer, Qingbing Wang, Satyendra Kumar
Satyendra Kumar
A homologous series of shape-persistent V-shaped molecules has been designed to form the biaxial nematic phase. Phenyleneethynylene moieties are attached to a bent fluorenone unit to create an apex angle of about 90°, which is determined from the single crystal structure. Two mesogens, one symmetric and another unsymmetric, have been synthesized by attaching a cyano group to one or both of the peripheral phenyl units, respectively. These groups introduce local dipoles essential for the formation of the nematic phases. The tendency to form a crystalline phase is reduced by laterally substituted hexyloxy chains which allow the nematic phase to be …