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Peptide Assembly of Al/CuO Nanothermite for Enhanced Reactivity of Nanoaluminum Particles.
- Source :
-
International Journal of Molecular Sciences . Jul2022, Vol. 23 Issue 14, p8054-8054. 10p. - Publication Year :
- 2022
-
Abstract
- Biological self-assembly procedures, which are generally carried out in an aqueous solution, have been found to be the most promising method for directing the fabrication of diverse nanothermites, including Al/CuO nanothermite. However, the aqueous environment in which Al nanoparticles self-assemble has an impact on their stability. We show that using a peptide to self-assemble Al or CuO nanoparticles considerably improves their durability in phosphate buffer aqueous solution, with Al and CuO nanoparticles remaining intact in aqueous solution for over 2 weeks with minimal changes in the structure. When peptide-assembled Al/CuO nanothermite was compared with a physically mixed sample in phosphate buffer for 30 min, the energy release of the former was higher by 26%. Furthermore, the energy release of peptide-assembled Al/CuO nanocomposite in phosphate buffer showed a 6% reduction by Day 7, while that of the peptide-assembled Al/CuO nanocomposite in ultrapure water was reduced by 75%. Taken together, our study provides an easy method for keeping the thermal activity of Al/CuO nanothermite assembled in aqueous solution. [ABSTRACT FROM AUTHOR]
- Subjects :
- *COPPER oxide
*PEPTIDES
*AQUEOUS solutions
*BUFFER solutions
Subjects
Details
- Language :
- English
- ISSN :
- 16616596
- Volume :
- 23
- Issue :
- 14
- Database :
- Academic Search Index
- Journal :
- International Journal of Molecular Sciences
- Publication Type :
- Academic Journal
- Accession number :
- 158266893
- Full Text :
- https://doi.org/10.3390/ijms23148054