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Peptide Assembly of Al/CuO Nanothermite for Enhanced Reactivity of Nanoaluminum Particles

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...

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Detalles Bibliográficos
Autores principales: Jin, Miaomiao, Song, Zhanxin, Liu, Wei, Zhou, Zilu, Wang, Guozhen, Xian, Mo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9320105/
https://www.ncbi.nlm.nih.gov/pubmed/35887400
http://dx.doi.org/10.3390/ijms23148054
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author Jin, Miaomiao
Song, Zhanxin
Liu, Wei
Zhou, Zilu
Wang, Guozhen
Xian, Mo
author_facet Jin, Miaomiao
Song, Zhanxin
Liu, Wei
Zhou, Zilu
Wang, Guozhen
Xian, Mo
author_sort Jin, Miaomiao
collection PubMed
description 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.
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spelling pubmed-93201052022-07-27 Peptide Assembly of Al/CuO Nanothermite for Enhanced Reactivity of Nanoaluminum Particles Jin, Miaomiao Song, Zhanxin Liu, Wei Zhou, Zilu Wang, Guozhen Xian, Mo Int J Mol Sci Article 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. MDPI 2022-07-21 /pmc/articles/PMC9320105/ /pubmed/35887400 http://dx.doi.org/10.3390/ijms23148054 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Jin, Miaomiao
Song, Zhanxin
Liu, Wei
Zhou, Zilu
Wang, Guozhen
Xian, Mo
Peptide Assembly of Al/CuO Nanothermite for Enhanced Reactivity of Nanoaluminum Particles
title Peptide Assembly of Al/CuO Nanothermite for Enhanced Reactivity of Nanoaluminum Particles
title_full Peptide Assembly of Al/CuO Nanothermite for Enhanced Reactivity of Nanoaluminum Particles
title_fullStr Peptide Assembly of Al/CuO Nanothermite for Enhanced Reactivity of Nanoaluminum Particles
title_full_unstemmed Peptide Assembly of Al/CuO Nanothermite for Enhanced Reactivity of Nanoaluminum Particles
title_short Peptide Assembly of Al/CuO Nanothermite for Enhanced Reactivity of Nanoaluminum Particles
title_sort peptide assembly of al/cuo nanothermite for enhanced reactivity of nanoaluminum particles
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9320105/
https://www.ncbi.nlm.nih.gov/pubmed/35887400
http://dx.doi.org/10.3390/ijms23148054
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