Imaging gold nanoparticles in mouse liver by laser ablation inductively coupled plasma mass spectrometry

Abstract Imaging the size distribution of metal nanoparticles (NPs) in a tissue has important implications in terms of evaluating NP toxicity. Microscopy techniques used to image tissue NPs are limited by complicated sample preparation or poor resolution. In this study, we developed a laser ablation...

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Autores principales: Qing Li, Zheng Wang, Jiamei Mo, Guoxia Zhang, Yirui Chen, Chuchu Huang
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Lenguaje:EN
Publicado: Nature Portfolio 2017
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Acceso en línea:https://doaj.org/article/777b8472a117437dad8363dd7f561e92
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spelling oai:doaj.org-article:777b8472a117437dad8363dd7f561e922021-12-02T16:06:20ZImaging gold nanoparticles in mouse liver by laser ablation inductively coupled plasma mass spectrometry10.1038/s41598-017-03275-x2045-2322https://doaj.org/article/777b8472a117437dad8363dd7f561e922017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-03275-xhttps://doaj.org/toc/2045-2322Abstract Imaging the size distribution of metal nanoparticles (NPs) in a tissue has important implications in terms of evaluating NP toxicity. Microscopy techniques used to image tissue NPs are limited by complicated sample preparation or poor resolution. In this study, we developed a laser ablation (LA) system coupled to single-particle inductively coupled plasma mass spectrometry (SP-ICP-MS) for quantitative imaging of gold (G)NPs in tissue samples. In this system, GNPs were ablated but did not disintegrate and integrate under optimised operation conditions, which were verified by characterising LA particles by scanning electron microscopy. The feasibility of imaging size distributions in tissue was validated using reference GNPs 60 and 80 nm in size on matrix-matched kidney. A transport efficiency of 6.07% was obtained by LA-SP-ICP-MS under optimal conditions. We used this system to image 80-nm GNPs in mouse liver and the size distribution thus obtained was in accordance with that determined by nebuliser SP-ICP-MS. The images revealed that 80-nm GNPs mainly accumulate in the liver and did not obviously aggregate. Our results demonstrate that LA-SP-ICP-MS is an effective tool for evaluating the size distribution of metal NPs in tissue.Qing LiZheng WangJiamei MoGuoxia ZhangYirui ChenChuchu HuangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-7 (2017)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Qing Li
Zheng Wang
Jiamei Mo
Guoxia Zhang
Yirui Chen
Chuchu Huang
Imaging gold nanoparticles in mouse liver by laser ablation inductively coupled plasma mass spectrometry
description Abstract Imaging the size distribution of metal nanoparticles (NPs) in a tissue has important implications in terms of evaluating NP toxicity. Microscopy techniques used to image tissue NPs are limited by complicated sample preparation or poor resolution. In this study, we developed a laser ablation (LA) system coupled to single-particle inductively coupled plasma mass spectrometry (SP-ICP-MS) for quantitative imaging of gold (G)NPs in tissue samples. In this system, GNPs were ablated but did not disintegrate and integrate under optimised operation conditions, which were verified by characterising LA particles by scanning electron microscopy. The feasibility of imaging size distributions in tissue was validated using reference GNPs 60 and 80 nm in size on matrix-matched kidney. A transport efficiency of 6.07% was obtained by LA-SP-ICP-MS under optimal conditions. We used this system to image 80-nm GNPs in mouse liver and the size distribution thus obtained was in accordance with that determined by nebuliser SP-ICP-MS. The images revealed that 80-nm GNPs mainly accumulate in the liver and did not obviously aggregate. Our results demonstrate that LA-SP-ICP-MS is an effective tool for evaluating the size distribution of metal NPs in tissue.
format article
author Qing Li
Zheng Wang
Jiamei Mo
Guoxia Zhang
Yirui Chen
Chuchu Huang
author_facet Qing Li
Zheng Wang
Jiamei Mo
Guoxia Zhang
Yirui Chen
Chuchu Huang
author_sort Qing Li
title Imaging gold nanoparticles in mouse liver by laser ablation inductively coupled plasma mass spectrometry
title_short Imaging gold nanoparticles in mouse liver by laser ablation inductively coupled plasma mass spectrometry
title_full Imaging gold nanoparticles in mouse liver by laser ablation inductively coupled plasma mass spectrometry
title_fullStr Imaging gold nanoparticles in mouse liver by laser ablation inductively coupled plasma mass spectrometry
title_full_unstemmed Imaging gold nanoparticles in mouse liver by laser ablation inductively coupled plasma mass spectrometry
title_sort imaging gold nanoparticles in mouse liver by laser ablation inductively coupled plasma mass spectrometry
publisher Nature Portfolio
publishDate 2017
url https://doaj.org/article/777b8472a117437dad8363dd7f561e92
work_keys_str_mv AT qingli imaginggoldnanoparticlesinmouseliverbylaserablationinductivelycoupledplasmamassspectrometry
AT zhengwang imaginggoldnanoparticlesinmouseliverbylaserablationinductivelycoupledplasmamassspectrometry
AT jiameimo imaginggoldnanoparticlesinmouseliverbylaserablationinductivelycoupledplasmamassspectrometry
AT guoxiazhang imaginggoldnanoparticlesinmouseliverbylaserablationinductivelycoupledplasmamassspectrometry
AT yiruichen imaginggoldnanoparticlesinmouseliverbylaserablationinductivelycoupledplasmamassspectrometry
AT chuchuhuang imaginggoldnanoparticlesinmouseliverbylaserablationinductivelycoupledplasmamassspectrometry
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