Porphyrins, the same molecules that convey oxygen in haemoglobin and absorb light during photosynthesis, can be joined to the material of the future, graphene, to give it new properties. The resulting ...

Photodynamic therapy (PDT) utilises the convergence of light, oxygen and a photosensitizing agent to elicit selective cytotoxicity in target tissues. Porphyrin-based photosensitizers, owing to their ...

Ions are created when an atom or molecule either loses or gains electrons, thus gaining a charge. When two oppositely charged ions are combined, it can lead to the creation of an ion pair. The ...

A pair of nanorings, one sitting inside the other, fit together like perfectly nested Russian dolls. The structure is not only strikingly beautiful but could offer a useful model for studying energy ...

Porphyrin-Based Films Offer Energy Storage and Light Control for Smart Windows ...

Anna Christianson, a chemistry professor at Bellarmine University, was wowed by an exciting color change while making a sulfonated porphyrin (tetrakis(4-sulfonatophenyl)porphyrin or TSPP) to use as a ...