Formation of Ag Nanostrings Induced by Lyotropic Liquid-Crystalline Phospholipid Multilayer
- Formation of Ag Nanostrings Induced by Lyotropic Liquid-Crystalline Phospholipid Multilayer
- Suk J. Kim; Hyeun H. An; Seung J. Lee; Jong H. Lee; Young H. Kim; Chong S. Yoon; 서상희
- Issue Date
- VOL 28, NO 1, 259-263
- Morphological variation of the Ag nanoparticles embedded in a lyotropic
phospholipid (1,2-dioleoyl-sn-glycero-3-phosphoethanolamine, DOPE) membrane during
hydration was investigated. Hydration at 5 C resulted in transformation of the Ag
nanoparticles into a bundle of Ag nanostrings as the Ag nanoparticles conformed to the HII
phase of the DOPE molecules. Above 30 C, the nanoparticles quickly coarsened into large
polygonal-shaped particles since high mobility of the lipid molecules overwhelmed the
tendency for the Ag nanoparticles to order. The result provided an insight into the longterm
stability of nanoparticles trapped in different lipid membranes depending on the
structural ordering of the molecules.
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