Synthesis of a Water-Soluble Carboxylatobiphen[4]arene and Its Selective Complexation toward Acetylcholine

Controlling the photochemical reaction of an azastilbene derivative in water using a water-soluble pillar[6]arene

A host–guest system in water based on a water-soluble pillar[6]arene and an azastilbene derivative, (E)-4,4′-dimethyl-4,4′-diazoniastilbene diiodide, has been constructed. Then this water-soluble pillar[6]arene was successfully used to control the photohydration of the azastilbene derivative in water as a “protective agent”.

Smart mesoporous silica nanoparticles gated by pillararene-modified gold nanoparticles for on-demand cargo release

A new drug delivery system, based on mesoporous silica nanoparticles gated by carboxylatopillar[5]arene-modified gold nanoparticles, has been fabricated for controlled drug release.