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Light‑responsive nanomaterials with pro‑oxidant and anti‑oxidant activity

Research output: Contribution to Journal/MagazineLiterature reviewpeer-review

E-pub ahead of print
  • Soumik Podder
  • Chandan Kumar Ghosh
  • Avijit Das
  • John Hardy
<mark>Journal publication date</mark>10/03/2022
<mark>Journal</mark>Emergent Materials
Publication StatusE-pub ahead of print
Early online date10/03/22
<mark>Original language</mark>English


Nanomaterials are capable of generating reactive oxygen species (ROS) due to defect-induced electronic interactions with oxygen and water stimulated by environmental and structural factors (e.g., photonic energy, band edge energy, and morphology) resulting in excellent pro-oxidant activity of nanomaterials. The pro-oxidant activities are demonstrated by the antibacterial activity of nanomaterials under different environmental conditions (e.g., varying light levels). This review examines research related to the pro-oxidant activity of metallic, non-metallic, metal oxide nanoparticles (NPs), and their composites.
Moreover, there is a scavenging phenomenon for nanomaterials that manifests itself as inhibition of ROS (i.e., anti-oxidant activity) which is also dependent on the electronic property of the nanomaterials, which is examined. These nanomaterials experience a crossover between pro-oxidant and anti-oxidant activities depending on concentration, morphology, etc., which offers the nanomaterials potential for application in cancer therapy and inflammatory disease treatment.