ArticleThe journal of physical chemistry. C, Nanomaterials and interfaces2021
Nanoparticle Fragmentation Below the Melting Point Under Single Picosecond Laser Pulse Stimulation.
Article in The journal of physical chemistry. C, Nanomaterials and interfaces, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Time-resolved probing of laser-induced nanostructuring processes in liquids.Beilstein journal of nanotechnology · 2025Review
- Optical blood-brain-tumor barrier modulation expands therapeutic options for glioblastoma treatment.Nature communications · 2023Article
- One-Shot Laser-Pulse Modification of Bare and Silica-Coated Gold Nanoparticles of Various Morphologies.Nanomaterials (Basel, Switzerland) · 2023Article
- Mechanobiological modulation of blood-brain barrier permeability by laser stimulation of endothelial-targeted nanoparticles.Nanoscale · 2023Article
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Authors and funding
7 authors.
Funding
Abstract
Understanding the laser-nanomaterials interaction including nanomaterial fragmentation has important implications in nanoparticle manufacturing, energy, and biomedical sciences. So far, three mechanisms of laser-induced fragmentation have been recognized including non-thermal processes and thermomechanical force under femtosecond pulses, and the phase transitions under nanosecond pulses. Here we show that single picosecond (ps) laser pulse stimulation leads to anomalous fragmentation of gold nanoparticles that deviates from these three mechanisms. The ps laser fragmentation was weakly dependent on particle size, and it resulted in a bimodal size distribution. Importantly, ps laser stimulation fragmented particles below the whole particle melting point and below the threshold for non-thermal mechanism. We propose a framework based on near-field enhancement and nanoparticle surface melting to account for the ps laser-induced fragmentation observed here. This study reveals a new form of surface ablation that occurs under picosecond laser stimulation at low fluence.
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