Photostability of a C60 fullerene coating as a solid-phase photosensitizer of singlet oxygen

Photoactive antimicrobial coating based on a PEDOT-fullerene C60 polymeric dyad

“…Also, the production efficiency of O 2 ( 1 D g ) of the lm is lower since the aggregation processes in the solid state could be reducing the F D . 32,67 The obtained F D value not only conrms that PEDOT-C 60 is able to generate O 2 ( 1 D g ), but also that it is more efficient compared to previous electrodeposited polymers. 26,27,68 Furthermore, the O 2 ( 1 D g ) production demonstrates that a photodynamic mechanism type II occurs when PEDOT-C 60 is irradiated with light.…”

“…Taking this condition into account, fullerene C 60 is a more photostable PS than porphyrinoid derivatives under visible light irradiation, since it undergoes relatively less photobleaching than tetrapyrrolic macrocycles. [29][30][31][32] Blacha-Grzechnik et al have recently demonstrated that lms of polythiophene-C 60 dyads, electrodeposited on indium-tin oxide (ITO) electrode, have the capability to produce O 2 ( 1 D g ) under light irradiation. 33 Nyga et al have proved that selenophene-fullerene polymeric dyads, electrochemically deposited, were also able to generate O 2 ( 1 D g ) aer visible illumination.…”

BOPHY‐Fullerene C60 Dyad as a Photosensitizer for Antimicrobial Photodynamic Therapy

“…Moreover, fullerene compounds have higher photostability compared with traditional PSs. [12,14,15] However, despite all these features, C 60 derivatives are characterized by low absorption coefficients in the visible region, which restricts their action as PSs in PDI. This spectroscopic disadvantage has been overcome by the covalent coupling of light-harvesting antennas to the fullerene C 60 unit.…”

“…Furthermore, the suitable electron acceptor properties of fullerene derivatives allow them to undergo electron transfer reactions, generating charge‐separated states, which enables the possibility to inactivate microorganisms under hypoxic conditions. Moreover, fullerene compounds have higher photostability compared with traditional PSs [12,14,15] . However, despite all these features, C 60 derivatives are characterized by low absorption coefficients in the visible region, which restricts their action as PSs in PDI.…”

Mechanochemical Preparation of Stable Sub‐100 nm γ‐Cyclodextrin:Buckminsterfullerene (C60) Nanoparticles by Electrostatic or Steric Stabilization

“…in 1985, and its macroscopic production was first realized by Krätschmer in 1990 . Ever since, this molecule has been the subject of extensive research, ranging from astrochemistry to, more recently, materials science and biomedicine, fields where C 60 has an enormous application potential . In the biomedical context, C 60 stands out as a powerful antioxidant, that is, a scavenger of cytotoxic reactive oxygen species (ROS).…”