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Toxicity of energetic nanomaterials assessed on L929 fibroblasts

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Abstract

The widespread use of energetic materials (EMs) has increased human exposure to these substances, and the potential toxicity of nano-sized EMs remains a largely unexplored area of research. This study investigates the cytotoxicity of three nano-sized energetic nanomaterials, namely nano-sized triaminotrinitrobenzene (nano-TATB), hexanitrostilbene (HNS-IV), and 2,6-diamino-3,5-dinitropyrazine-1-oxide (nano-LLM-105), using L929 fibroblasts for in vitro testing. The findings demonstrate a significant dose-dependent toxic effect on L929 cells. As the dose increases, cell density decreases, cell morphology becomes rounder, and cell gaps widen. The results of cell activity assays, lactate dehydrogenase (LDH) and superoxide dismutase (SOD) activity measurements, and apoptosis detection suggest that the cytotoxicity is caused by cell membrane fragmentation and the excessive production of reactive oxygen species (ROS), leading to oxidative stress. Given the potential for EMs to cause toxic effects in various tissues and organs, including the liver and kidneys, and even teratogenic and mutagenic effects, this work provides valuable insights into the toxicological evaluation of energetic nanomaterials.

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Abbreviations

EMs:

Energetic materials

nano-TATB:

Nano-sized triaminotrinitrobenzene

HNS-IV:

Hexanitrostilbene

nano-LLM-105:

2,6-Diamino-3,5-dinitropyrazine-1-oxide

LDH:

Lactate dehydrogenase

SOD:

Superoxide dismutase

ROS:

Reactive oxygen species

RGO:

Reduced graphene oxide

GO:

Graphene oxide

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Correspondence to Meikun Fan or Bing Huang.

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Liu, S., Tang, C., Jiang, K. et al. Toxicity of energetic nanomaterials assessed on L929 fibroblasts. Chem. Pap. 78, 3507–3514 (2024). https://doi.org/10.1007/s11696-024-03324-6

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  • DOI: https://doi.org/10.1007/s11696-024-03324-6

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