Journal
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
Volume 23, Issue 23, Pages -Publisher
MDPI
DOI: 10.3390/ijms232314658
Keywords
laser ablation; green synthesis; Au; Ag nanoparticles; molecular structure; potential application
Funding
- Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program
- Science and Technology Research Project of Henan Province
- Key Scientific Research Project for Henan Province Higher school of China
- [2017BT01G167]
- [222102220011]
- [21A460034]
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This article focuses on the progress of two synthesis methods for Au/Ag NPs: laser ablation and biological synthesis, emphasizing their fabrication fundamentals and potential applications in biology, tumor diagnosis and treatment, and other fields.
Because of their small size and large specific surface area, nanoparticles (NPs) have special properties that are different from bulk materials. In particular, Au/Ag NPs have been intensively studied for a long time, especially for biomedical applications. Thereafter, they played a significant role in the fields of biology, medical testing, optical imaging, energy and catalysis, MRI contrast agents, tumor diagnosis and treatment, environmental protection, and so on. When synthesizing Au/Ag NPs, the laser ablation and biosynthesis methods are very promising green processes. Therefore, this review focuses on the progress in the laser ablation and biological synthesis processes for Au/Ag NP generation, especially in their fabrication fundamentals and potential applications. First, the fundamentals of the laser ablation method are critically reviewed, including the laser ablation mechanism for Au/Ag NPs and the controlling of their size and shape during fabrication using laser ablation. Second, the fundamentals of the biological method are comprehensively discussed, involving the synthesis principle and the process of controlling the size and shape and preparing Au/Ag NPs using biological methods. Third, the applications in biology, tumor diagnosis and treatment, and other fields are reviewed to demonstrate the potential value of Au/Ag NPs. Finally, a discussion surrounding three aspects (similarity, individuality, and complementarity) of the two green synthesis processes is presented, and the necessary outlook, including the current limitations and challenges, is suggested, which provides a reference for the low-cost and sustainable production of Au/Ag NPs in the future.
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