Diacetylene-containing ligand as a new capping agent for the preparation of water-soluble colloidal nanoparticles of remarkable stability.
作者： Dorota Bartczak , Antonios G. Kanaras
DOI: 10.1021/LA9044013
关键词:
摘要: A new type of strategically designed functional ligands was used to cap gold nanocrystals and form robust colloidal nanoparticles, resistant pH changes, temperature, ionic strength variations as well ligand-exchange reactions. The nanoparticles are coated with that polymerize upon UV-irradiation, consequently embedding the particles in a stable organic shell. ligand consists an anchoring thiol group, which binds directly nanocrystal surface two units, one hydrophobic hydrophilic. alkyl unit contains diacetylene undergoes 1,4-topochemical polymerization leading poly(enyne) structure during UV-irradiation. hydrophilic oligo-ethylene glycol chain, ensures water solubility, terminal carboxylic group. Derived were characterized by transmission electron microscopy, enhanced Raman spectroscopy, visible spectroscopy. Their stability investigated compared cap...
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