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금나노 물질이 북방산개구리에 미치는 영향

Effects of Gold Nanoparticles on eggs and tadpoles of Rana dybowskii

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주제분류기타자연과학

초록

나노물질이 포함된 다양한 제품들이 증가하고 있으며, 나노물질의 수생태계 노출에 대해서는 불가피하다. 따라서 우리는 금나노입자를 이용하여 국내 다양한 습지 환경에 널리 서식하는 북방산개구리에 대한 독성평가(부화율, 바디컨디션, 행동학적민감도)를 해보았다. 행동학적 민감도는 포식자 회피반응 정도를 이용하여 Ethvision XT 9으로 측정하였다. 금나노입자에 대한 부화율과 STL의 독성은 나타나지 않았다. 하지만 금나노입자에 노출된 올챙이들은 외부자극에대한 행동학적 민감도가 감소하였다. 이러한 결과는 실험대상 동물의 행동학적 특성을 이용한 새로운 독성평가 방식을제시한다.

Abstract

As the number of applications containing nanomaterials increase, aquatic ecosystem exposure to nanoparticles (NPs) is unavoidable. In this study, we carried out toxicity assessment to Au-nanoparticles(NPs) of Rana dybowskii eggs and tadpoles. Toxicity was recorded hatching rate, body condition(Snout-tail length, STL), and behavioral sensitivity. Behavioral sensitivity was analyzed to anti-predator behavior using Ethovision XT 9. Au-NPs did not show any toxicity of hatching rate and STL. But, Tadpoles exposed to Au-NPs decrease behavioral sensitivity of stimuli. This study has value of environmental toxicity evaluation because these results show the new way of toxicity assessment.

참고문헌 (45)

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