Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 27, Issue 62, Pages 15361-15374Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.202102123
Keywords
antibacterial; anticounterfeit; nanofluids; nanoparticles; photothermal effect
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Funding
- Universita degli Studi di Pavia within the CRUI-CARE Agreement
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The photothermal properties of nanoparticles have been extensively studied, primarily in relation to tumor therapy and antibacterial coatings. There has been significant progress in various technological and biomedical applications, ranging from solar energy conversion to anticounterfeit printing.
The photothermal properties of nanoparticles (NPs), that is, their ability to convert absorbed light into heat, have been studied since the end of the last century, mainly on gold NPs. In the new millennium, these studies have developed into a burst of research dedicated to the photothermal ablation of tumors. However, beside this strictly medical theme, research has also flourished in the connected areas of photothermal antibacterial surface coatings, gels and polymers, of photothermal surfaces for cell stimulation, as well as in purely technological areas that do not involve medical biotechnology. These include the direct conversion of solar light into heat, a more efficient sun-powered generation of steam and the use of inkjet-printed patterns of photothermal NPs for anticounterfeit printing based on temperature reading, to cite but a few. After an analysis of the photothermal effect (PTE) and its mechanism, this minireview briefly considers the antitumor-therapy theme and takes an in-depth look at all the other technological and biomedical applications of the PTE, paying particular attention to photothermal materials whose NPs have joined those based on Au.
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