Understanding the Colloidal Stability of Nanoparticle-Ligand Complexes: Design, Synthesis, and Structure-Function Relationship Studies of Amphiphilic Small-Molecule Ligands
| Autor: | Naoya Maeta, Yohei Okada, Hidehiro Kamiya, Kodai Ishikawa |
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| Rok vydání: | 2017 |
| Předmět: |
Aqueous solution
Ligand Chemistry Organic Chemistry Nanoparticle 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Combinatorial chemistry Small molecule Catalysis 0104 chemical sciences Solvent Colloid Amphiphile Organic chemistry Solubility 0210 nano-technology |
| Zdroj: | Chemistry - A European Journal. 24:1853-1858 |
| ISSN: | 0947-6539 |
| DOI: | 10.1002/chem.201704306 |
| Popis: | For effective application of nanoparticles, their amenability to in-solution processing must be addressed, and stable, homogeneous solvent conditions are required. Although organic ligands have been used as surface-modifying reagents for nanoparticles to increase their colloidal stability and homogeneity in solution, the structure-function relationships of nanoparticle-ligand complexes remain elusive and controversial. Herein, a series of novel amphiphilic small-molecule ligands were designed, synthesized, and applied as surface-modifying reagents for aqueous, transparent TiO2 and ZrO2 nanoparticles. The colloidal stability of the resulting nanoparticle-ligand complexes was found to depend not only on the chain length, but also on the relative balance between hydrophobicity and hydrophilicity. The structure of the ligands can be fine-tuned to achieve "flexible colloidal stability", thus significantly increasing complex stability in a variety of organic solvents. |
| Databáze: | OpenAIRE |
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