AI Article Synopsis
- The report discusses the functionalization of gold nanoparticles (AuNPs) using deep-cavity cavitands that incorporate organic molecules, resulting in two types of AuNPs: one soluble in organic solvents and another in water.
- The organic-soluble AuNP forms a 1:1 host-guest complex with the guest exposed to exterior solvents, while the water-soluble AuNP creates a 2:1 host-guest complex that protects the guest from water.
- Phosphorescence from included compounds was quenched by the nearby gold atoms, and the study successfully synthesized four new deep-cavity cavitands, with two thiol-functionalized cavitands producing stable AuNPs, while amine-functionalized
Article Abstract
In this report, we present methods of functionalization of AuNP's with deep-cavity cavitands that can include organic molecules. Two types of deep-cavity cavitand-functionalized AuNP's have been synthesized and characterized, one soluble in organic solvents and the other in water. Functionalized AuNP soluble in organic solvents forms a 1:1 host-guest complex where the guest is exposed to the exterior solvents. The one soluble in water forms a 2:1 host-guest complex where the guest is protected from solvent water. Phosphorescence from thiones and benzil included within heterocapsules attached to AuNP was quenched by gold atoms present closer to the guests included within deep-cavity cavitands. During this investigation, we have synthesized four new deep-cavity cavitands. Of these, two thiol-functionalized hosts allowed us to make stable AuNP's. However, AuNP's protected with two amine-functionalized cavitands tended to aggregate within a day.
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| http://dx.doi.org/10.1021/la302478e | DOI Listing |
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