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Updated: Feb 6, 2026
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Rapid Evaluation of Toxicity of Chemical Compounds Using Zebrafish Embryos
Published on: August 25, 2019
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The Relationship between Dissolution Behavior and the Toxicity of Silver Nanoparticles on Zebrafish Embryos in
Wang Sik Lee1,2, Eungwang Kim3, Hyun-Ju Cho4,5
1Hazards Monitoring Bionano Research Center, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea. wang3026@kribb.re.kr.
Nanomaterials (Basel, Switzerland)
|August 26, 2018
Summary
Engineered silver nanoparticles (AgNPs) show varied environmental toxicity. Their behavior, including dissolution and aggregation, depends on ionic conditions, impacting zebrafish embryo development.
Area of Science:
- Environmental Science
- Nanotechnology
- Toxicology
Background:
- Silver nanoparticles (AgNPs) are engineered nanomaterials with valuable properties (optical, electrical, antibacterial).
- Widespread applications in medicine, water filtration, and cosmetics raise concerns about environmental and human health impacts.
- Understanding AgNP environmental behavior is crucial for mitigating adverse effects.
Purpose of the Study:
- To compare the toxicity of citrate-stabilized AgNPs and polyethylene glycol (PEG) coated AgNPs.
- To investigate AgNP behavior in different ionic environments relevant to aquatic ecosystems.
- To assess the impact of these behaviors on zebrafish embryo development.
Main Methods:
- Exposure of developing zebrafish embryos to two types of AgNPs (citrate-stabilized and PEG-coated).
- Evaluation of AgNP behavior (dissolution, aggregation, precipitation) in distinct ionic environments.
- Assessment of resultant toxicity on zebrafish embryos.
Main Results:
- AgNP behavior (dissolution, aggregation, precipitation) varied significantly based on the ionic composition of the aquatic environment.
- Citrate-stabilized and PEG-coated AgNPs exhibited differential responses to ionic conditions.
- These environmentally influenced behaviors directly correlated with observed toxicity levels in zebrafish embryos.
Conclusions:
- The ionic environment is a critical factor modulating the behavior and toxicity of silver nanoparticles.
- Surface coating (citrate vs. PEG) influences how AgNPs interact with environmental ions and their subsequent toxicity.
- This study highlights the need to consider environmental context when assessing AgNP risks to aquatic organisms like zebrafish.
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