1. Different applications, same story: Inspiring nanomedicine from photothermal catalysis to modulate the photothermal activity of nanomaterials through defects engineering.
- Author
-
Dias, Leonardo Francisco Gonçalves and Abou-Hassan, Ali
- Subjects
- *
NANOMEDICINE , *PHOTOTHERMAL effect , *NANOSTRUCTURED materials , *CATALYSIS , *NANOTECHNOLOGY , *METAL-organic frameworks , *SEMICONDUCTOR defects - Abstract
• Engineering strategies of vacancies in nanomaterials and types of vacancies for enhancing photothermal activity are summarized. • Fingerprints of defected-based materials are discussed and reviewed. • Challenges and perspectives for synthesis and investigation of defected-based materials for photothermal activity are discussed in the frame of nanomedecine. Upon photo-stimulation, some materials such as semiconductors can result in the generation of heat through the photothermal effect. The heat generated can be used in nanomedicine for example in cancer therapy. The response to photostimulation and the resulting photothermia can be modulated through the addition of defects in the case of semiconductors, at the heart of this review. Based on the observation that the generated nanoheat is used in photothermal catalysis and biomedical photothermia, we present here a summary of recent works in both disciplines on semiconductors that explore nanoengineering of local atomic defects, the most reported ones, to modulate the photothermal activity. We highlight the different synthesis methods and processes for creating such defects from photothermal catalysis and nanomedicine disciplines, their physicochemical and physical fingerprints elucidating their presence, and the impact of such defects on the properties and photothermal activity of such nanomaterials. In general, local defects appear to act like traps for photogenerated electrons after photo-stimulation, increasing the recombination time, and leading to non-radiative recombination and more efficient catalysis and photothermia. We also show an unpredictable optimal concertation of defects for obtaining high heating performances. Moreover, taking into account the great achievements in the field of photothermal catalysis, we translated them to the field of photothermia in nanomedicine and highlighted future perspectives in this field, at different scales for a better understanding of the relationship between the deficient structure-properties-function in heating. We believe this review, independently from the discipline, can help to elucidate aspects of photothermal activity, inspire the engineering of new defect-based materials as well as new detection methods, and bring new connections between the communities of thermal catalysis and nanomedicine. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF