The accessibility of catalytically active sites in enzymes is maintained by the surrounding amino acid residues, but in synthetic metal clusters, these sites are typically blocked by the organic groups used to coat them. It has now been shown that the accessibility of gold clusters bound by calixarenes can be controlled by tuning the relative sizes of the metal cores and the ligands.
- Namal de Silva
- Jeong-Myeong Ha
- Alexander Katz
