101
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Celluzzi A, Paolini A, D'Oria V, Risoluti R, Materazzi S, Pezzullo M, Casciardi S, Sennato S, Bordi F, Masotti A. Biophysical and biological contributions of polyamine-coated carbon nanotubes and bidimensional buckypapers in the delivery of miRNAs to human cells. Int J Nanomedicine 2018. [PMID: 29296082 DOI: 10.2147/ijn.s144155.] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Recent findings in nanomedicine have revealed that carbon nanotubes (CNTs) can be used as potential drug carriers, therapeutic agents and diagnostics tools. Moreover, due to their ability to cross cellular membranes, their nanosize dimension, high surface area and relatively good biocompatibility, CNTs have also been employed as a novel gene delivery vector system. In our previous work, we functionalized CNTs with two polyamine polymers, polyethyleneimine (PEI) and polyamidoamine dendrimer (PAMAM). These compounds have low cytotoxicity, ability to conjugate microRNAs (such as miR-503) and, at the same time, transfect efficiently endothelial cells. The parameters contributing to the good efficiency of transfection that we observed were not investigated in detail. In fact, the diameter and length of CNTs are important parameters to be taken into account when evaluating the effects on drug delivery efficiency. In order to investigate the biophysical and biological contributions of polymer-coated CNTs in delivery of miRNAs to human cells, we decided to investigate three different preparations, characterized by different dimensions and aspect ratios. In particular, we took into account very small CNTs, a suspension of CNTs starting from the commercial product and a 2D material based on CNTs (ie, buckypapers [BPs]) to examine the transfection efficiency of a rigid scaffold. In conclusion, we extensively investigated the biophysical and biological contributions of polyamine-coated CNTs and bidimensional BPs in the delivery of miRNAs to human cells, in order to optimize the transfection efficiency of these compounds to be employed as efficient drug delivery vectors in biomedical applications.
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Affiliation(s)
| | | | | | | | | | - Marco Pezzullo
- Bambino Gesù Children's Hospital, IRCCS, Research Laboratories
| | - Stefano Casciardi
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, National Institution for Insurance Against Accidents at Work (INAIL Research), Monte Porzio Catone
| | - Simona Sennato
- CNR-ISC UOS Roma, Department of Physics, Sapienza University of Rome, Roma, Italy
| | - Federico Bordi
- CNR-ISC UOS Roma, Department of Physics, Sapienza University of Rome, Roma, Italy
| | - Andrea Masotti
- Bambino Gesù Children's Hospital, IRCCS, Research Laboratories
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102
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Qiu TA, Clement PL, Haynes CL. Linking nanomaterial properties to biological outcomes: analytical chemistry challenges in nanotoxicology for the next decade. Chem Commun (Camb) 2018; 54:12787-12803. [DOI: 10.1039/c8cc06473c] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
This article provides our perspective on the analytical challenges in nanotoxicology as the field is entering its third decade.
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Affiliation(s)
- Tian A. Qiu
- Department of Chemistry
- University of Minnesota
- Minneapolis
- USA
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103
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Celluzzi A, Paolini A, D'Oria V, Risoluti R, Materazzi S, Pezzullo M, Casciardi S, Sennato S, Bordi F, Masotti A. Biophysical and biological contributions of polyamine-coated carbon nanotubes and bidimensional buckypapers in the delivery of miRNAs to human cells. Int J Nanomedicine 2017; 13:1-18. [PMID: 29296082 PMCID: PMC5739113 DOI: 10.2147/ijn.s144155] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Recent findings in nanomedicine have revealed that carbon nanotubes (CNTs) can be used as potential drug carriers, therapeutic agents and diagnostics tools. Moreover, due to their ability to cross cellular membranes, their nanosize dimension, high surface area and relatively good biocompatibility, CNTs have also been employed as a novel gene delivery vector system. In our previous work, we functionalized CNTs with two polyamine polymers, polyethyleneimine (PEI) and polyamidoamine dendrimer (PAMAM). These compounds have low cytotoxicity, ability to conjugate microRNAs (such as miR-503) and, at the same time, transfect efficiently endothelial cells. The parameters contributing to the good efficiency of transfection that we observed were not investigated in detail. In fact, the diameter and length of CNTs are important parameters to be taken into account when evaluating the effects on drug delivery efficiency. In order to investigate the biophysical and biological contributions of polymer-coated CNTs in delivery of miRNAs to human cells, we decided to investigate three different preparations, characterized by different dimensions and aspect ratios. In particular, we took into account very small CNTs, a suspension of CNTs starting from the commercial product and a 2D material based on CNTs (ie, buckypapers [BPs]) to examine the transfection efficiency of a rigid scaffold. In conclusion, we extensively investigated the biophysical and biological contributions of polyamine-coated CNTs and bidimensional BPs in the delivery of miRNAs to human cells, in order to optimize the transfection efficiency of these compounds to be employed as efficient drug delivery vectors in biomedical applications.
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Affiliation(s)
| | | | | | | | | | - Marco Pezzullo
- Bambino Gesù Children's Hospital, IRCCS, Research Laboratories
| | - Stefano Casciardi
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, National Institution for Insurance Against Accidents at Work (INAIL Research), Monte Porzio Catone
| | - Simona Sennato
- CNR-ISC UOS Roma, Department of Physics, Sapienza University of Rome, Roma, Italy
| | - Federico Bordi
- CNR-ISC UOS Roma, Department of Physics, Sapienza University of Rome, Roma, Italy
| | - Andrea Masotti
- Bambino Gesù Children's Hospital, IRCCS, Research Laboratories
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104
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Chia HL, Latiff NM, Sofer Z, Pumera M. Cytotoxicity of Group 5 Transition Metal Ditellurides (MTe2; M=V, Nb, Ta). Chemistry 2017; 24:206-211. [DOI: 10.1002/chem.201704316] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Indexed: 12/16/2022]
Affiliation(s)
- Hui Ling Chia
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
- NTU Institute for Health Technologies, Interdisciplinary Graduate School; Nanyang Technological University; 50 Nanyang Drive Singapore 637553 Singapore
| | - Naziah Mohamad Latiff
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
| | - Zdenĕk Sofer
- Department of Inorganic Chemistry; University of Chemistry and Technology Prague; Technickά 5 166 28 Prague 6 Czech Republic
| | - Martin Pumera
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
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105
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Sims CM, Hanna SK, Heller DA, Horoszko CP, Johnson ME, Montoro Bustos AR, Reipa V, Riley KR, Nelson BC. Redox-active nanomaterials for nanomedicine applications. NANOSCALE 2017; 9:15226-15251. [PMID: 28991962 PMCID: PMC5648636 DOI: 10.1039/c7nr05429g] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Nanomedicine utilizes the remarkable properties of nanomaterials for the diagnosis, treatment, and prevention of disease. Many of these nanomaterials have been shown to have robust antioxidative properties, potentially functioning as strong scavengers of reactive oxygen species. Conversely, several nanomaterials have also been shown to promote the generation of reactive oxygen species, which may precipitate the onset of oxidative stress, a state that is thought to contribute to the development of a variety of adverse conditions. As such, the impacts of nanomaterials on biological entities are often associated with and influenced by their specific redox properties. In this review, we overview several classes of nanomaterials that have been or projected to be used across a wide range of biomedical applications, with discussion focusing on their unique redox properties. Nanomaterials examined include iron, cerium, and titanium metal oxide nanoparticles, gold, silver, and selenium nanoparticles, and various nanoscale carbon allotropes such as graphene, carbon nanotubes, fullerenes, and their derivatives/variations. Principal topics of discussion include the chemical mechanisms by which the nanomaterials directly interact with biological entities and the biological cascades that are thus indirectly impacted. Selected case studies highlighting the redox properties of nanomaterials and how they affect biological responses are used to exemplify the biologically-relevant redox mechanisms for each of the described nanomaterials.
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Affiliation(s)
- Christopher M. Sims
- Material Measurement Laboratory, National Institute of Standards and Technology (NIST), 100 Bureau Drive, Gaithersburg, MD 20899, United States
| | - Shannon K. Hanna
- Material Measurement Laboratory, National Institute of Standards and Technology (NIST), 100 Bureau Drive, Gaithersburg, MD 20899, United States
| | - Daniel A. Heller
- Memorial Sloan Kettering Cancer Center (MSKCC), 1275 York Avenue, New York, NY 10065, United States
- Weill Cornell Medicine, Cornell University, 1300 York Avenue, New York, NY 10065, United States
| | - Christopher P. Horoszko
- Memorial Sloan Kettering Cancer Center (MSKCC), 1275 York Avenue, New York, NY 10065, United States
- Weill Graduate School of Medical Sciences, Cornell University, 1300 York Avenue, New York, NY 10065, United States
| | - Monique E. Johnson
- Material Measurement Laboratory, National Institute of Standards and Technology (NIST), 100 Bureau Drive, Gaithersburg, MD 20899, United States
| | - Antonio R. Montoro Bustos
- Material Measurement Laboratory, National Institute of Standards and Technology (NIST), 100 Bureau Drive, Gaithersburg, MD 20899, United States
| | - Vytas Reipa
- Material Measurement Laboratory, National Institute of Standards and Technology (NIST), 100 Bureau Drive, Gaithersburg, MD 20899, United States
| | - Kathryn R. Riley
- Department of Chemistry and Biochemistry, Swarthmore College, 500 College Avenue, Swarthmore, PA 19081, United States
| | - Bryant C. Nelson
- Material Measurement Laboratory, National Institute of Standards and Technology (NIST), 100 Bureau Drive, Gaithersburg, MD 20899, United States
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106
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King AAK, Matta-Domjan B, Large MJ, Matta C, Ogilvie SP, Bardi N, Byrne HJ, Zakhidov A, Jurewicz I, Velliou E, Lewis R, La Ragione R, Dalton AB. Pristine carbon nanotube scaffolds for the growth of chondrocytes. J Mater Chem B 2017; 5:8178-8182. [PMID: 32264461 DOI: 10.1039/c7tb02065a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The effective growth of chondrocytes and the formation of cartilage is demonstrated on scaffolds of aligned carbon nanotubes; as two dimensional sheets and on three dimensional textiles. Raman spectroscopy is used to confirm the presence of chondroitin sulfate, which is critical in light of the unreliability of traditional dye based assays for carbon nanomaterial substrates. The textile exhibits a very high affinity for chondrocyte growth and could present a route to implantable, flexible cartilage scaffolds with tuneable mechanical properties.
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107
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Stone V, Miller MR, Clift MJD, Elder A, Mills NL, Møller P, Schins RPF, Vogel U, Kreyling WG, Alstrup Jensen K, Kuhlbusch TAJ, Schwarze PE, Hoet P, Pietroiusti A, De Vizcaya-Ruiz A, Baeza-Squiban A, Teixeira JP, Tran CL, Cassee FR. Nanomaterials Versus Ambient Ultrafine Particles: An Opportunity to Exchange Toxicology Knowledge. ENVIRONMENTAL HEALTH PERSPECTIVES 2017; 125:106002. [PMID: 29017987 PMCID: PMC5933410 DOI: 10.1289/ehp424] [Citation(s) in RCA: 213] [Impact Index Per Article: 30.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Revised: 08/12/2016] [Accepted: 08/30/2016] [Indexed: 05/05/2023]
Abstract
BACKGROUND A rich body of literature exists that has demonstrated adverse human health effects following exposure to ambient air particulate matter (PM), and there is strong support for an important role of ultrafine (nanosized) particles. At present, relatively few human health or epidemiology data exist for engineered nanomaterials (NMs) despite clear parallels in their physicochemical properties and biological actions in in vitro models. OBJECTIVES NMs are available with a range of physicochemical characteristics, which allows a more systematic toxicological analysis. Therefore, the study of ultrafine particles (UFP, <100 nm in diameter) provides an opportunity to identify plausible health effects for NMs, and the study of NMs provides an opportunity to facilitate the understanding of the mechanism of toxicity of UFP. METHODS A workshop of experts systematically analyzed the available information and identified 19 key lessons that can facilitate knowledge exchange between these discipline areas. DISCUSSION Key lessons range from the availability of specific techniques and standard protocols for physicochemical characterization and toxicology assessment to understanding and defining dose and the molecular mechanisms of toxicity. This review identifies a number of key areas in which additional research prioritization would facilitate both research fields simultaneously. CONCLUSION There is now an opportunity to apply knowledge from NM toxicology and use it to better inform PM health risk research and vice versa. https://doi.org/10.1289/EHP424.
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Affiliation(s)
- Vicki Stone
- Institute of Biological Chemistry, Biophysics and Bioengineering, Heriot-Watt University, Edinburgh, Scotland, UK
| | - Mark R Miller
- Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, Scotland, UK
| | - Martin J D Clift
- Adolphe Merkle Institute, University of Fribourg, Fribourg, Switzerland
- Swansea University Medical School, Swansea, Wales, UK
| | - Alison Elder
- University of Rochester Medical Center, Rochester, New York
| | - Nicholas L Mills
- Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, Scotland, UK
| | - Peter Møller
- Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Roel P F Schins
- IUF Leibniz-Institut für Umweltmedizinische Forschung, Düsseldorf, Germany
| | - Ulla Vogel
- National Research Centre for the Working Environment, Copenhagen, Denmark
- Department of Micro- and Nanotechnology, Technical University of Denmark, Lyngby, Denmark
| | - Wolfgang G Kreyling
- Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), Institute of Epidemiology, Munich, Germany
| | | | - Thomas A J Kuhlbusch
- Air Quality & Sustainable Nanotechnology Unit, Institut für Energie- und Umwelttechnik e. V. (IUTA), Duisburg, Germany
- Federal Institute of Occupational Safety and Health, Duisburg, Germany
| | | | - Peter Hoet
- Center for Environment and Health, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Antonio Pietroiusti
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy
| | - Andrea De Vizcaya-Ruiz
- Departmento de Toxicología, Center for Research and Advanced Studies of the National Polytechnic Institute (CINVESTAV-IPN), México City, México
| | | | - João Paulo Teixeira
- National Institute of Health, Porto, Portugal
- Instituto de Saúde Pública da Universidade do Porto–Epidemiology (ISPUP-EPI) Unit, Porto, Portugal
| | - C Lang Tran
- Institute of Occupational Medicine, Edinburgh, Scotland, UK
| | - Flemming R Cassee
- National Institute for Public Health and the Environment, Bilthoven, Netherlands
- Institute of Risk Assessment Sciences, Utrecht University, Utrecht, Netherlands
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108
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Zhitnyak IY, Bychkov IN, Sukhorukova IV, Kovalskii AM, Firestein KL, Golberg D, Gloushankova NA, Shtansky DV. Effect of BN Nanoparticles Loaded with Doxorubicin on Tumor Cells with Multiple Drug Resistance. ACS APPLIED MATERIALS & INTERFACES 2017; 9:32498-32508. [PMID: 28857548 DOI: 10.1021/acsami.7b08713] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Herein we study the effect of doxorubicin-loaded BN nanoparticles (DOX-BNNPs) on cell lines that differ in the multidrug resistance (MDR), namely KB-3-1 and MDR KB-8-5 cervical carcinoma lines, and K562 and MDR i-S9 leukemia lines. We aim at revealing the possible differences in the cytotoxic effect of free DOX and DOX-BNNP nanoconjugates on these types of cells. The spectrophotometric measurements have demonstrated that the maximum amount of DOX in the DOX-BNNPs is obtained after saturation in alkaline solution (pH 8.4), indicating the high efficiency of BNNPs saturation with DOX. DOX release from DOX-BNNPs is a pH-dependent and DOX is more effectively released in acid medium (pH 4.0-5.0). Confocal laser scanning microscopy has shown that the DOX-BNNPs are internalized by neoplastic cells using endocytic pathway and distributed in cell cytoplasm near the nucleus. The cytotoxic studies have demonstrated a higher sensitivity of the leukemia lines to DOX-BNNPs compared with the carcinoma lines: IC50(DOX-BNNPs) is 1.13, 4.68, 0.025, and 0.14 μg/mL for the KB-3-1, MDR KB-8-5, K562, and MDR i-S9 cell lines, respectively. To uncover the mechanism of cytotoxic effect of nanocarriers on MDR cells, DOX distribution in both the nucleus and cytoplasm has been studied. The results indicate that the DOX-BNNP nanoconjugates significantly change the dynamics of DOX accumulation in the nuclei of both KB-3-1 and KB-8-5 cells. Unlike free DOX, the utilization of DOX-BNNPs nanoconjugates allows for maintaining a high and stable level of DOX in the nucleus of MDR KB-8-5 cells.
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Affiliation(s)
- Irina Y Zhitnyak
- N.N. Blokhin Russian Cancer Research Center , Kashirskoe Shosse 24, Moscow 115478, Russia
| | - Igor N Bychkov
- N.N. Blokhin Russian Cancer Research Center , Kashirskoe Shosse 24, Moscow 115478, Russia
| | - Irina V Sukhorukova
- National University of Science and Technology "MISIS″ , Leninsky Prospect 4, Moscow, 119049, Russia
| | - Andrey M Kovalskii
- National University of Science and Technology "MISIS″ , Leninsky Prospect 4, Moscow, 119049, Russia
| | - Konstantin L Firestein
- National University of Science and Technology "MISIS″ , Leninsky Prospect 4, Moscow, 119049, Russia
- School of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology (QUT) , Second George Street, Brisbane, Queensland 4000, Australia
| | - Dmitri Golberg
- School of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology (QUT) , Second George Street, Brisbane, Queensland 4000, Australia
- Intrenational Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS) , Namiki 1-1, Tsukuba, Ibaraki 3050044, Japan
| | - Natalya A Gloushankova
- N.N. Blokhin Russian Cancer Research Center , Kashirskoe Shosse 24, Moscow 115478, Russia
| | - Dmitry V Shtansky
- National University of Science and Technology "MISIS″ , Leninsky Prospect 4, Moscow, 119049, Russia
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109
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Krug HF, Nau K. Reliability for Nanosafety Research - Considerations on the Basis of a Comprehensive Literature Review. CHEMBIOENG REVIEWS 2017. [DOI: 10.1002/cben.201700013] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Harald Friedrich Krug
- Empa - Eidgenössische Materialprüfungs- und Forschungsanstalt; International Research Cooperation Manager; Lerchenfeldstrasse 5 9014 St. Gallen Switzerland
| | - Katja Nau
- Karlsruhe Institute of Technology (KIT); Institute for Applied Computer Science; Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
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110
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Zhang X, Zhang Z, Zhang S, Li D, Ma W, Ma C, Wu F, Zhao Q, Yan Q, Xing B. Size Effect on the Cytotoxicity of Layered Black Phosphorus and Underlying Mechanisms. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:1701210. [PMID: 28696584 DOI: 10.1002/smll.201701210] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2017] [Revised: 05/28/2017] [Indexed: 06/07/2023]
Abstract
A systematic cytotoxicity study of layered black phosphorus (BP) is urgently needed before moving forward to its potential biomedical applications. Herein, bulk BP crystals are synthesized and exfoliated into layered BP with different lateral size and thickness. The cytotoxicity of as-exfoliated layered BP is evaluated by a label-free real-time cell analysis technique, displaying a concentration-, size-, and cell type-dependent response. The IC50 values can vary by 40 and 30 times among the BP sizes and cell types, respectively. BP-1 with the largest lateral size and thickness has the highest cytotoxicity; whereas the smallest BP-3 only shows moderate toxicity. The sensitivity of three tested cell lines follows the sequence of 293T > NIH 3T3 > HCoEpiC. Two possible mechanisms for BP to induce cytotoxicity are proposed and verified: (1) the generation of intracellular reactive oxygen species (ROS) is detected by a ROS sensitive probe using the inverted fluorescence microscopy and flow cytometry; (2) the interaction of layered BP and model cell membrane is examined by quartz crystal microbalance with dissipation, illustrating the disruption of cell membrane integrity especially by the largest BP-1. This systematic study of BP's cytotoxicity will shed light on its future biomedical and environmental applications.
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Affiliation(s)
- Xuejiao Zhang
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China
| | - Ziming Zhang
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Siyu Zhang
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China
| | - Dengyu Li
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Wei Ma
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - ChuanXin Ma
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA, 01003, USA
- Department of Analytical Chemistry, The Connecticut Agricultural Experiment Station, New Haven, CT, 06504, USA
| | - Fengchang Wu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Qing Zhao
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China
| | - Qingfeng Yan
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Baoshan Xing
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA, 01003, USA
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111
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Barrick A, Châtel A, Bruneau M, Mouneyrac C. The role of high-throughput screening in ecotoxicology and engineered nanomaterials. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2017; 36:1704-1714. [PMID: 28440957 DOI: 10.1002/etc.3811] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 01/20/2017] [Accepted: 03/27/2017] [Indexed: 06/07/2023]
Abstract
The field of environmental toxicology developed as a result of growing concerns about anthropogenic influences on the environment and how to ameliorate ecological impact. Many governmental bodies are beginning to emphasize prevention rather than mitigation when addressing novel products, leading to more of a focus on identifying potential toxicity prior to release. With the exponential advances in their development and sale, novel metamaterials and biotechnology are set to dramatically outpace the capabilities of current testing strategies. To address the need for a fast, cost-effective means of testing chemicals, high-throughput screening (HTS) is currently being used in toxicology and being adapted to ecotoxicology in projects such as ToxCast and Tox21. Despite the growth of research using HTS platforms, its role in ecotoxicology is still uncertain, particularly in how it should be applied in regulation. The aim of the present review is to discuss common test strategies used in designing HTS platforms, the current potential applications for ecotoxicological research, its role in regulatory policies, and its ability to address growing concerns such as engineered nanomaterials. Environ Toxicol Chem 2017;36:1704-1714. © 2017 SETAC.
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Affiliation(s)
- Andrew Barrick
- Mer Molécules Sante, Université Catholique de l'Ouest, Angers Cedex, France
| | - Amélie Châtel
- Mer Molécules Sante, Université Catholique de l'Ouest, Angers Cedex, France
| | - Mélanie Bruneau
- Mer Molécules Sante, Université Catholique de l'Ouest, Angers Cedex, France
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112
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Lalwani G, D'agati M, Gopalan A, Patel SC, Talukdar Y, Sitharaman B. Three-dimensional carbon nanotube scaffolds for long-term maintenance and expansion of human mesenchymal stem cells. J Biomed Mater Res A 2017; 105:1927-1939. [DOI: 10.1002/jbm.a.36062] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Revised: 03/02/2017] [Accepted: 03/07/2017] [Indexed: 12/22/2022]
Affiliation(s)
- Gaurav Lalwani
- Department of Biomedical Engineering; Stony Brook University; Stony Brook New York 11794-5281
| | - Michael D'agati
- Department of Biomedical Engineering; Stony Brook University; Stony Brook New York 11794-5281
| | - Anu Gopalan
- Department of Biomedical Engineering; Stony Brook University; Stony Brook New York 11794-5281
| | - Sunny C. Patel
- Department of Biomedical Engineering; Stony Brook University; Stony Brook New York 11794-5281
| | - Yahfi Talukdar
- Department of Biomedical Engineering; Stony Brook University; Stony Brook New York 11794-5281
| | - Balaji Sitharaman
- Department of Biomedical Engineering; Stony Brook University; Stony Brook New York 11794-5281
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113
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Lee YH, Chuang SM, Huang SC, Tan X, Liang RY, Yang GCC, Chueh PJ. Biocompatibility assessment of nanomaterials for environmental safety screening. ENVIRONMENTAL TOXICOLOGY 2017; 32:1170-1182. [PMID: 27404259 DOI: 10.1002/tox.22313] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Revised: 06/16/2016] [Accepted: 06/18/2016] [Indexed: 06/06/2023]
Abstract
In view of the extensive use of nanoparticles in countless applications, a fast and effective method for assessing their potential adverse effects on the environment and human health is extremely important. At present, in vitro cell-based assays are the standard approach for screening chemicals for cytotoxicity because of their relative simplicity, sensitivity, and cost-effectiveness compared with animal studies. Regrettably, such cell-based viability assays encounter limitations when applied to determining the biological toxicity of nanomaterials, which often interact with assay components and produce unreliable outcomes. We have established a cell-impedance-based, label-free, real-time cell-monitoring platform suitable for use in a variety of mammalian cell lines that displays results as cell index values. In addition to this real-time screening platform, other traditional cytotoxicity assays were employed to validate cytotoxicity assessments. We suggest that the cell impedance measurement approach is effective and better suited to determining the cytotoxicity of nanomaterials for environmental safety screening. © 2016 Wiley Periodicals, Inc. Environ Toxicol 32: 1170-1182, 2017.
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Affiliation(s)
- Yi-Hui Lee
- Institute of Biomedical Sciences, National Chung Hsing University, Taichung, 40227, Taiwan
| | - Show-Mei Chuang
- Institute of Biomedical Sciences, National Chung Hsing University, Taichung, 40227, Taiwan
| | - Sheng-Chi Huang
- Institute of Environmental Engineering and Center for Emerging Contaminants Research, National Sun Yat-Sen University, Kaohsiung, 80424, Taiwan
| | - Xiaotong Tan
- Institute of Biomedical Sciences, National Chung Hsing University, Taichung, 40227, Taiwan
| | - Ruei-Yue Liang
- Institute of Biomedical Sciences, National Chung Hsing University, Taichung, 40227, Taiwan
| | - Gordon C C Yang
- Institute of Environmental Engineering and Center for Emerging Contaminants Research, National Sun Yat-Sen University, Kaohsiung, 80424, Taiwan
| | - Pin Ju Chueh
- Institute of Biomedical Sciences, National Chung Hsing University, Taichung, 40227, Taiwan
- Graduate Institute of Basic Medicine, China Medical University, Taichung, 40402, Taiwan
- Department of Medical Research, China Medical University Hospital, Taichung, 40402, Taiwan
- Department of Biotechnology, Asia University, Taichung, 41354, Taiwan
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114
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Eldridge BN, Xing F, Fahrenholtz CD, Singh RN. Evaluation of multiwalled carbon nanotube cytotoxicity in cultures of human brain microvascular endothelial cells grown on plastic or basement membrane. Toxicol In Vitro 2017; 41:223-231. [PMID: 28285150 DOI: 10.1016/j.tiv.2017.03.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Revised: 03/06/2017] [Accepted: 03/07/2017] [Indexed: 11/27/2022]
Abstract
There is a growing interest in the use of multiwalled carbon nanotubes (MWCNTs) to treat diseases of the brain. Little is known about the effects of MWCNTs on human brain microvascular endothelial cells (HBMECs), which make up the blood vessels in the brain. In our studies, we evaluate the cytotoxicity of MWCNTs and acid oxidized MWNCTs, with or without a phospholipid-polyethylene glycol coating. We determined the cytotoxic effects of MWCNTs on both tissue-mimicking cultures of HBMECs grown on basement membrane and on monolayer cultures of HBMECs grown on plastic. We also evaluated the effects of MWCNT exposure on the capacity of HBMECs to form rings after plating on basement membrane, a commonly used assay to evaluate angiogenesis. We show that tissue-mimicking cultures of HBMECs are less sensitive to all types of MWCNTs than monolayer cultures of HBMECs. Furthermore, we found that MWCNTs have little impact on the capacity of HBMECs to form rings. Our results indicate that relative cytotoxicity of MWCNTs is significantly affected by the type of cell culture model used for testing, and supports further research into the use of tissue-mimicking endothelial cell culture models to help bridge the gap between in vitro and in vivo toxicology.
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Affiliation(s)
- Brittany N Eldridge
- Department of Cancer Biology, Wake Forest School of Medicine, Winston Salem, NC 27157, USA
| | - Fei Xing
- Department of Cancer Biology, Wake Forest School of Medicine, Winston Salem, NC 27157, USA
| | - Cale D Fahrenholtz
- Department of Cancer Biology, Wake Forest School of Medicine, Winston Salem, NC 27157, USA
| | - Ravi N Singh
- Department of Cancer Biology, Wake Forest School of Medicine, Winston Salem, NC 27157, USA; Comprehensive Cancer Center of Wake Forest School of Medicine, Winston Salem, NC 27157, USA.
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115
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Zhang W, Sun Y, Lou Z, Song L, Wu Y, Gu N, Zhang Y. In vitro cytotoxicity evaluation of graphene oxide from the peroxidase-like activity perspective. Colloids Surf B Biointerfaces 2017; 151:215-223. [DOI: 10.1016/j.colsurfb.2016.12.025] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2015] [Revised: 11/29/2016] [Accepted: 12/18/2016] [Indexed: 01/06/2023]
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116
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Mottas I, Milosevic A, Petri-Fink A, Rothen-Rutishauser B, Bourquin C. A rapid screening method to evaluate the impact of nanoparticles on macrophages. NANOSCALE 2017; 9:2492-2504. [PMID: 28150827 DOI: 10.1039/c6nr08194k] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Nanotechnology is an emerging and highly promising field to develop new approaches for biomedical applications. There is however at present an unmet need for a rapid and universal method to screen nanoparticles (NP) for immunocompatibility at early stages of their development. Indeed, although many types of highly diverse NP are currently under investigation, their interaction with immune cells remains fairly unpredictable. Macrophages which are professional phagocytic cells are believed to be among the first cell types that take up NP, mediating inflammation and thus immunological responses. The present work describes a highly reproducible screening method to study the NP interaction with macrophages. Three essential questions are answered in parallel, in a single multiwell plate: Are the NP taken up by macrophages? Do the NP cause macrophage cell death? Do the NP induce inflammatory reactions? This assay is proposed as a standardized screening protocol to obtain a rapid overview of the impact of different types of NP on macrophages. Due to high reproducibility, this method also allows quality control assessment for such aspects as immune-activating contaminants and batch-to-batch variability.
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Affiliation(s)
- Inès Mottas
- Chair of Pharmacology, Department of Medicine, Faculty of Science, University of Fribourg, Chemin du Musée 5, 1700 Fribourg, Switzerland and School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, and Department of Anesthesiology, Pharmacology, and Intensive Care, Rue Michel-Servet 1, 1211 Geneva, Switzerland.
| | - Ana Milosevic
- Adolphe-Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland
| | - Alke Petri-Fink
- Adolphe-Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland and Chemistry Department, University of Fribourg, Chemin Du Musée 9, 1700 Fribourg, Switzerland
| | | | - Carole Bourquin
- Chair of Pharmacology, Department of Medicine, Faculty of Science, University of Fribourg, Chemin du Musée 5, 1700 Fribourg, Switzerland and School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, and Department of Anesthesiology, Pharmacology, and Intensive Care, Rue Michel-Servet 1, 1211 Geneva, Switzerland.
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117
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Gao Z, Varela JA, Groc L, Lounis B, Cognet L. Toward the suppression of cellular toxicity from single-walled carbon nanotubes. Biomater Sci 2017; 4:230-44. [PMID: 26678092 DOI: 10.1039/c5bm00134j] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
In the multidisciplinary fields of nanobiology and nanomedicine, single-walled carbon nanotubes (SWCNTs) have shown great promise due to their unique morphological, physical and chemical properties. However, understanding and suppressing their cellular toxicity is a mandatory step before promoting their biomedical applications. In light of the flourishing recent literature, we provide here an extensive review on SWCNT cellular toxicity and an attempt to identify the key parameters to be considered in order to obtain SWCNT samples with minimal or no cellular toxicity.
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Affiliation(s)
- Zhenghong Gao
- Univ. Bordeaux, Laboratoire Photonique Numerique et Nanosciences, UMR 5298, F-33400 Talence, France and Institut d'Optique & CNRS, LP2N UMR 5298, F-33400 Talence, France.
| | - Juan A Varela
- Univ. Bordeaux, Interdisciplinary Institute for Neuroscience, UMR 5297, F-33000 Bordeaux, France and CNRS, IINS UMR 5297, F-33000 Bordeaux, France
| | - Laurent Groc
- Univ. Bordeaux, Interdisciplinary Institute for Neuroscience, UMR 5297, F-33000 Bordeaux, France and CNRS, IINS UMR 5297, F-33000 Bordeaux, France
| | - Brahim Lounis
- Univ. Bordeaux, Laboratoire Photonique Numerique et Nanosciences, UMR 5298, F-33400 Talence, France and Institut d'Optique & CNRS, LP2N UMR 5298, F-33400 Talence, France.
| | - Laurent Cognet
- Univ. Bordeaux, Laboratoire Photonique Numerique et Nanosciences, UMR 5298, F-33400 Talence, France and Institut d'Optique & CNRS, LP2N UMR 5298, F-33400 Talence, France.
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118
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Qiu TA, Nguyen THT, Hudson-Smith NV, Clement PL, Forester DC, Frew H, Hang MN, Murphy CJ, Hamers RJ, Feng ZV, Haynes CL. Growth-Based Bacterial Viability Assay for Interference-Free and High-Throughput Toxicity Screening of Nanomaterials. Anal Chem 2017; 89:2057-2064. [PMID: 28208291 DOI: 10.1021/acs.analchem.6b04652] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Current high-throughput approaches evaluating toxicity of chemical agents toward bacteria typically rely on optical assays, such as luminescence and absorbance, to probe the viability of the bacteria. However, when applied to toxicity induced by nanomaterials, scattering and absorbance from the nanomaterials act as interferences that complicate quantitative analysis. Herein, we describe a bacterial viability assay that is free of optical interference from nanomaterials and can be performed in a high-throughput format on 96-well plates. In this assay, bacteria were exposed to various materials and then diluted by a large factor into fresh growth medium. The large dilution ensured minimal optical interference from the nanomaterial when reading optical density, and the residue left from the exposure mixture after dilution was confirmed not to impact the bacterial growth profile. The fractions of viable cells after exposure were allowed to grow in fresh medium to generate measurable growth curves. Bacterial viability was then quantitatively correlated to the delay of bacterial growth compared to a reference regarded as 100% viable cells; data analysis was inspired by that in quantitative polymerase chain reactions, where the delay in the amplification curve is correlated to the starting amount of the template nucleic acid. Fast and robust data analysis was achieved by developing computer algorithms carried out using R. This method was tested on four bacterial strains, including both Gram-negative and Gram-positive bacteria, showing great potential for application to all culturable bacterial strains. With the increasing diversity of engineered nanomaterials being considered for large-scale use, this high-throughput screening method will facilitate rapid screening of nanomaterial toxicity and thus inform the risk assessment of nanoparticles in a timely fashion.
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Affiliation(s)
- Tian A Qiu
- Department of Chemistry, University of Minnesota , 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Thu Ha Thi Nguyen
- Chemistry Department, Augsburg College , Minneapolis, Minnesota 55454, United States
| | - Natalie V Hudson-Smith
- Department of Chemistry, University of Minnesota , 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Peter L Clement
- Department of Chemistry, University of Minnesota , 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Dona-Carla Forester
- Department of Chemistry, University of Minnesota , 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Hilena Frew
- Chemistry Department, Augsburg College , Minneapolis, Minnesota 55454, United States
| | - Mimi N Hang
- Department of Chemistry, University of Wisconsin-Madison , 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Catherine J Murphy
- Department of Chemistry, University of Illinois at Urbana-Champaign , 600 South Mathews Avenue, Urbana, Illinois 61801, United States
| | - Robert J Hamers
- Department of Chemistry, University of Wisconsin-Madison , 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Z Vivian Feng
- Chemistry Department, Augsburg College , Minneapolis, Minnesota 55454, United States
| | - Christy L Haynes
- Department of Chemistry, University of Minnesota , 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
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119
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Foreman HCC, Lalwani G, Kalra J, Krug LT, Sitharaman B. Gene delivery to mammalian cells using a graphene nanoribbon platform. J Mater Chem B 2017; 5:2347-2354. [DOI: 10.1039/c6tb03010f] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
We developed a novel oxidized graphene nanoribbon-based platform (O-GNR) for gene delivery of double-stranded DNA into mammalian cells.
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Affiliation(s)
| | - Gaurav Lalwani
- Theragnostic Technologies Inc
- Long Island High Technology Incubator Suite 123
- Stony Brook
- USA
| | - Jaslin Kalra
- Theragnostic Technologies Inc
- Long Island High Technology Incubator Suite 123
- Stony Brook
- USA
| | - Laurie T. Krug
- Department of Molecular Genetics and Microbiology
- Stony Brook University
- Stony Brook
- USA
| | - Balaji Sitharaman
- Department of Biomedical Engineering
- Stony Brook University
- Stony Brook
- USA
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120
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Chae A, Choi Y, Jo S, Nur'aeni N, Paoprasert P, Park SY, In I. Microwave-assisted synthesis of fluorescent carbon quantum dots from an A2/B3 monomer set. RSC Adv 2017. [DOI: 10.1039/c6ra28176a] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Strongly fluorescent carbon quantum dots (CQDs) were simply prepared by microwave-assisted synthesis using succinic acid and tris(2-aminoethyl)amine as an “A2 + B3” monomer set with a high mass yield of 17.3%.
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Affiliation(s)
- Ari Chae
- Department of IT Convergence (Brain Korea PLUS 21)
- Korea National University of Transportation
- Chungju 380-702
- South Korea
| | - Yujin Choi
- Department of IT Convergence (Brain Korea PLUS 21)
- Korea National University of Transportation
- Chungju 380-702
- South Korea
| | - Seongho Jo
- Department of IT Convergence (Brain Korea PLUS 21)
- Korea National University of Transportation
- Chungju 380-702
- South Korea
| | - Nur'aeni Nur'aeni
- Department of IT Convergence (Brain Korea PLUS 21)
- Korea National University of Transportation
- Chungju 380-702
- South Korea
| | - Peerasak Paoprasert
- Department of Chemistry
- Faculty of Science and Technology
- Thammasat University
- Pathumthani 12121
- Thailand
| | - Sung Young Park
- Department of IT Convergence (Brain Korea PLUS 21)
- Korea National University of Transportation
- Chungju 380-702
- South Korea
- Department of Chemical and Biological Engineering
| | - Insik In
- Department of IT Convergence (Brain Korea PLUS 21)
- Korea National University of Transportation
- Chungju 380-702
- South Korea
- Department of Polymer Science and Engineering
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121
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Bonvin D, Hofmann H, Mionić Ebersold M. Assessment of nanoparticles’ safety: corrected absorbance-based toxicity test. Analyst 2017; 142:2338-2342. [DOI: 10.1039/c7an00382j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A method to correct absorbance-based toxicity tests of nanoparticles by removing the absorbance contribution of nanoparticles to that test.
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Affiliation(s)
- Debora Bonvin
- Powder Technology Laboratory
- Institute of Materials
- Ecole Polytechnique Fédérale de Lausanne
- Lausanne
- Switzerland
| | - Heinrich Hofmann
- Powder Technology Laboratory
- Institute of Materials
- Ecole Polytechnique Fédérale de Lausanne
- Lausanne
- Switzerland
| | - Marijana Mionić Ebersold
- Powder Technology Laboratory
- Institute of Materials
- Ecole Polytechnique Fédérale de Lausanne
- Lausanne
- Switzerland
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122
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Holt BD, Roginskaya V, Van Houten B, Islam MF, Dahl KN. Dispersed single wall carbon nanotubes do not impact mitochondria structure or function, but technical issues during analysis could yield incorrect results. J Mater Chem B 2017; 5:369-374. [DOI: 10.1039/c6tb02180h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Mitochondria, which generate cellular energy, are not influenced by purified carbon nanotubes. Many traditional biological assays to determine mitochondria function give false results because of nanotube surface activity and optical interference.
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Affiliation(s)
- Brian D. Holt
- Department of Biomedical Engineering
- Carnegie Mellon University
- Pittsburgh
- USA
| | - Vera Roginskaya
- Department of Pharmacology and Chemical Biology
- University of Pittsburgh School of Medicine and The University of Pittsburgh Cancer Institute
- Hillman Cancer Center
- Pittsburgh
- USA
| | - Bennett Van Houten
- Department of Pharmacology and Chemical Biology
- University of Pittsburgh School of Medicine and The University of Pittsburgh Cancer Institute
- Hillman Cancer Center
- Pittsburgh
- USA
| | - Mohammad F. Islam
- Department of Materials Science and Engineering
- Carnegie Mellon University
- Pittsburgh
- USA
| | - Kris Noel Dahl
- Department of Chemical Engineering
- Carnegie Mellon University
- Pittsburgh
- USA
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123
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Erdmann K, Ringel J, Hampel S, Wirth MP, Fuessel S. Carbon nanomaterials sensitize prostate cancer cells to docetaxel and mitomycin C via induction of apoptosis and inhibition of proliferation. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2017; 8:1307-1317. [PMID: 28690966 PMCID: PMC5496539 DOI: 10.3762/bjnano.8.132] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Accepted: 06/02/2017] [Indexed: 05/12/2023]
Abstract
We have previously shown that carbon nanofibers (CNFs) and carbon nanotubes (CNTs) can sensitize prostate cancer (PCa) cells to platinum-based chemotherapeutics. In order to further verify this concept and to avoid a bias, the present study investigates the chemosensitizing potential of CNFs and CNTs to the conventional chemotherapeutics docetaxel (DTX) and mitomycin C (MMC), which have different molecular structures and mechanisms of action than platinum-based chemotherapeutics. DU-145 PCa cells were treated with DTX and MMC alone or in combination with the carbon nanomaterials. The impact of the monotreatments and the combinatory treatments on cellular function was then systematically analyzed by using different experimental approaches (viability, short-term and long-term proliferation, cell death rate). DTX and MMC alone reduced the viability of PCa cells to 94% and 68%, respectively, whereas a combined treatment with CNFs led to less than 30% remaining viable cells. Up to 17- and 7-fold higher DTX and MMC concentrations were needed in order to evoke a similar inhibition of viability as mediated by the combinatory treatments. In contrast, the dose of platinum-based chemotherapeutics could only be reduced by up to 3-fold by combination with carbon nanomaterials. Furthermore, combinatory treatments with CNFs led mostly to an additive inhibition of short- and long-term proliferation compared to the individual treatments. Also, higher cell death rates were observed in combinatory treatments than in monotreatments, e.g., a combination of MMC and CNFs more than doubled the cell death rate mediated by apoptosis. Combinations with CNTs showed a similar, but less pronounced impact on cellular functions. In summary, carbon nanomaterials in combination with DTX and MMC evoked additive to partly synergistic anti-tumor effects. CNFs and CNTs possess the ability to sensitize cancer cells to a wide range of structurally diverse chemotherapeutics and thus represent an interesting option for the development of multimodal cancer therapies. Co-administration of chemotherapeutics with carbon nanomaterials could result in a reduction of the chemotherapeutic dosage and thus limit systemic side effects.
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Affiliation(s)
- Kati Erdmann
- Department of Urology, Medizinische Fakultät Carl Gustav Carus, Technische Universität Dresden, Fetscherstraße 74, Dresden 01307, Germany
| | - Jessica Ringel
- Department of Urology, Medizinische Fakultät Carl Gustav Carus, Technische Universität Dresden, Fetscherstraße 74, Dresden 01307, Germany
| | - Silke Hampel
- Leibniz Institute of Solid State and Material Research Dresden, P.O. Box 270016, Dresden 01171, Germany
| | - Manfred P Wirth
- Department of Urology, Medizinische Fakultät Carl Gustav Carus, Technische Universität Dresden, Fetscherstraße 74, Dresden 01307, Germany
| | - Susanne Fuessel
- Department of Urology, Medizinische Fakultät Carl Gustav Carus, Technische Universität Dresden, Fetscherstraße 74, Dresden 01307, Germany
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124
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Vriens H, Mertens D, Regret R, Lin P, Locquet JP, Hoet P. Case Study III: The Construction of a Nanotoxicity Database - The MOD-ENP-TOX Experience. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 947:325-344. [PMID: 28168673 DOI: 10.1007/978-3-319-47754-1_11] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The amount of experimental studies on the toxicity of nanomaterials is growing fast. Interpretation and comparison of these studies is a complex issue due to the high amount of variables possibly determining the toxicity of nanomaterials.Qualitative databases providing a structured combination, integration and quality evaluation of the existing data could reveal insights that cannot be seen from different studies alone. A few database initiatives are under development but in practice very little data is publicly available and collaboration between physicists, toxicologists, computer scientists and modellers is needed to further develop databases, standards and analysis tools.In this case study the process of building a database on the in vitro toxicity of amorphous silica nanoparticles (NPs) is described in detail. Experimental data were systematically collected from peer reviewed papers, manually curated and stored in a standardised format. The result is a database in ISA-Tab-Nano including 68 peer reviewed papers on the toxicity of 148 amorphous silica NPs. Both the physicochemical characterization of the particles and their biological effect (described in 230 in vitro assays) were stored in the database. A scoring system was elaborated in order to evaluate the reliability of the stored data.
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Affiliation(s)
- Hanne Vriens
- Center for Environment and Health, KU Leuven, Leuven, Belgium
| | | | | | - Pinpin Lin
- National Health Research Institutes, Zhunan Town, Taiwan
| | | | - Peter Hoet
- Center for Environment and Health, KU Leuven, Leuven, Belgium.
- KU Leuven, Department of Public Health and Primary Care, Center for Environment and Health, Herestraat 49 mailbox 706, B-3000, Leuven, Belgium.
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125
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Krug HF, Nau K. Zuverlässigkeit in der Nanosicherheitsforschung. CHEM-ING-TECH 2016. [DOI: 10.1002/cite.201600088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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126
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Piret JP, Bondarenko OM, Boyles MSP, Himly M, Ribeiro AR, Benetti F, Smal C, Lima B, Potthoff A, Simion M, Dumortier E, Leite PEC, Balottin LB, Granjeiro JM, Ivask A, Kahru A, Radauer-Preiml I, Tischler U, Duschl A, Saout C, Anguissola S, Haase A, Jacobs A, Nelissen I, Misra SK, Toussaint O. Pan-European inter-laboratory studies on a panel of in vitro cytotoxicity and pro-inflammation assays for nanoparticles. Arch Toxicol 2016; 91:2315-2330. [DOI: 10.1007/s00204-016-1897-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Accepted: 11/24/2016] [Indexed: 10/20/2022]
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127
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Liu C, Chan KW, Shen J, Liao CZ, Yeung KWK, Tjong SC. Polyetheretherketone Hybrid Composites with Bioactive Nanohydroxyapatite and Multiwalled Carbon Nanotube Fillers. Polymers (Basel) 2016; 8:E425. [PMID: 30974701 PMCID: PMC6432140 DOI: 10.3390/polym8120425] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Revised: 11/29/2016] [Accepted: 12/02/2016] [Indexed: 12/25/2022] Open
Abstract
Polyetheretherketone (PEEK) hybrid composites reinforced with inorganic nanohydroxyapatite (nHA) and multiwalled carbon nanotube (MWNT) were prepared by melt-compounding and injection molding processes. The additions of nHA and MWNT to PEEK were aimed to increase its elastic modulus, tensile strength, and biocompatibility, rendering the hybrids suitable for load-bearing implant applications. The structural behavior, mechanical property, wettability, osteoblastic cell adhesion, proliferation, differentiation, and mineralization of the PEEK/nHA-MWNT hybrids were studied. X-ray diffraction and SEM observation showed that both nHA and MWNT fillers are incorporated into the polymer matrix of PEEK-based hybrids. Tensile tests indicated that the elastic modulus of PEEK can be increased from 3.87 to 7.13 GPa by adding 15 vol % nHA and 1.88 vol % MWNT fillers. The tensile strength and elongation at break of the PEEK/(15% nHA)-(1.88% MWNT) hybrid were 64.48 MPa and 1.74%, respectively. Thus the tensile properties of this hybrid were superior to those of human cortical bones. Water contact angle measurements revealed that the PEEK/(15% nHA)-(1.88% MWNT) hybrid is hydrophilic due to the presence of nHA. Accordingly, hydrophilic PEEK/(15% nHA)-(1.88% MWNT) hybrid promoted the adhesion, proliferation, differentiation, and mineralization of murine MC3T3-E1 osteoblasts on its surface effectively on the basis of cell culture, fluorescence microscopy, MTT assay, WST-1 assay, alkaline phosphatase activity, and Alizarin red staining tests. Thus the PEEK/(15% nHA)-(1.88% MWNT) hybrid has the potential to be used for fabricating load-bearing bone implants.
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Affiliation(s)
- Chen Liu
- Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China.
| | - Kai Wang Chan
- Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China.
| | - Jie Shen
- Department of Orthopedics and Traumatology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China.
| | - Cheng Zhu Liao
- Department of Materials Science and Engineering, South University of Science and Technology of China, Shenzhen 518055, China.
| | - Kelvin Wai Kwok Yeung
- Department of Orthopedics and Traumatology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China.
| | - Sie Chin Tjong
- Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China.
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128
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Latiff NM, Sofer Z, Fisher AC, Pumera M. Cytotoxicity of Exfoliated Layered Vanadium Dichalcogenides. Chemistry 2016; 23:684-690. [DOI: 10.1002/chem.201604430] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Naziah Mohamad Latiff
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
| | - Zdeněk Sofer
- Department of Inorganic Chemistry; University of Chemistry and Technology Prague; Technická 5 166 28 Prague 6 Czech Republic
| | - Adrian C. Fisher
- Department of Chemical Engineering and Biotechnology; University of Cambridge, New Museums Site; Pembroke Street Cambridge CB2 3RA UK
| | - Martin Pumera
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
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129
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Friehs E, AlSalka Y, Jonczyk R, Lavrentieva A, Jochums A, Walter JG, Stahl F, Scheper T, Bahnemann D. Toxicity, phototoxicity and biocidal activity of nanoparticles employed in photocatalysis. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2016. [DOI: 10.1016/j.jphotochemrev.2016.09.001] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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130
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Męczyńska-Wielgosz S, Piotrowska A, Majkowska-Pilip A, Bilewicz A, Kruszewski M. Effect of Surface Functionalization on the Cellular Uptake and Toxicity of Nanozeolite A. NANOSCALE RESEARCH LETTERS 2016; 11:123. [PMID: 26935303 PMCID: PMC4775514 DOI: 10.1186/s11671-016-1334-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Accepted: 02/23/2016] [Indexed: 05/29/2023]
Abstract
Extensive use of zeolite nanoparticles in many areas, including medicine, has led to the concern about an impact and possible risk of their use for human health and the environment.In our studies, we investigated an uptake, retention, and cytotoxicity of nanozeolite A (BaA) functionalized with aminopropyl or poly(ethylene glycol) (PEG) of different chain lengths using human cervical carcinoma cell line. For internalization studies, nanozeolite was labeled with (133)Ba radionuclide.The results show that in the case of PEG modification, toxicity and uptake depend on the PEG chain length. The highest toxicity has been observed for nanozeolites coated with short-length chain (Ba-silane-PEGm(MW350). Also, amine-modified nanozeolites exhibited high toxicity, while nanozeolites coated with long PEG molecules, BaA-silane-PEGm(MW1000), and BaA-silane-PEGm(MW2000), as well as unmodified nanozeolite, seem to be nontoxic.In conclusion, this study shows that uptake, retention, and toxicity of nanozeolites coated with various length PEG molecules groups depend on the molecular weight of PEG.
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Affiliation(s)
| | - Agata Piotrowska
- Institute of Nuclear Chemistry and Technology, Dorodna 16, Warsaw, 03-195, Poland.
| | | | - Aleksander Bilewicz
- Institute of Nuclear Chemistry and Technology, Dorodna 16, Warsaw, 03-195, Poland.
| | - Marcin Kruszewski
- Institute of Nuclear Chemistry and Technology, Dorodna 16, Warsaw, 03-195, Poland.
- Faculty of Medicine, University of Information Technology and Management in Rzeszów, ul. Sucharskiego 2, Rzeszów, 35-225, Poland.
- Department of Molecular Biology and Translational Research, Institute of Rural Health, Jaczewskiego 2, Lublin, 20-090, Poland.
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131
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Chin SF, Baughman RH, Dalton AB, Dieckmann GR, Draper RK, Mikoryak C, Musselman IH, Poenitzsch VZ, Xie H, Pantano P. Amphiphilic Helical Peptide Enhances the Uptake of Single-Walled Carbon Nanotubes by Living Cells. Exp Biol Med (Maywood) 2016; 232:1236-44. [PMID: 17895532 DOI: 10.3181/0612-rm-284] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The success of many projected applications of carbon nano-tubes (CNTs) to living cells, such as intracellular sensors and nanovectors, will depend on how many CNTs are taken up by cells. Here we report the enhanced uptake by HeLa cells of single-walled CNTs coated with a designed peptide termed nano-1. Atomic force microscopy showed that the dispersions were composed of individual and small bundles of nano-1 CNTs with 0.7- to 32-nm diameters and 100- to 400-nm lengths. Spectroscopic characterizations revealed that nano-1 disperses CNTs in a non-covalent fashion that preserves CNT optical properties. Elemental analyses indicated that our sample preparation protocol involving sonication and centrifugation effectively eliminated metal impurities associated with CNT manufacturing processes. We further showed that the purified CNT dispersions are taken up by HeLa cells in a time- and temperature-dependent fashion, and that they do not affect the HeLa cell growth rate, evidence that the CNTs inside cells are not toxic under these conditions. Finally, we discovered that ~6-fold more CNTs are taken up by cells in the presence of nano-1 compared with medium containing serum but no peptide. The fact that coating CNTs with a peptide enhances uptake offers a strategy for improving the performance of applications that require CNTs to be inside cells.
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Affiliation(s)
- Shook-Fong Chin
- Department of Chemistry, The University of Texas at Dallas, Richardson, TX 75083-0688, USA
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132
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Mukherjee SP, Lozano N, Kucki M, Del Rio-Castillo AE, Newman L, Vázquez E, Kostarelos K, Wick P, Fadeel B. Detection of Endotoxin Contamination of Graphene Based Materials Using the TNF-α Expression Test and Guidelines for Endotoxin-Free Graphene Oxide Production. PLoS One 2016; 11:e0166816. [PMID: 27880838 PMCID: PMC5120825 DOI: 10.1371/journal.pone.0166816] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Accepted: 11/04/2016] [Indexed: 02/07/2023] Open
Abstract
Nanomaterials may be contaminated with bacterial endotoxin during production and handling, which may confound toxicological testing of these materials, not least when assessing for immunotoxicity. In the present study, we evaluated the conventional Limulus amebocyte lysate (LAL) assay for endotoxin detection in graphene based material (GBM) samples, including graphene oxide (GO) and few-layered graphene (FLG). Our results showed that some GO samples interfered with various formats of the LAL assay. To overcome this problem, we developed a TNF-α expression test (TET) using primary human monocyte-derived macrophages incubated in the presence or absence of the endotoxin inhibitor, polymyxin B sulfate, and found that this assay, performed with non-cytotoxic doses of the GBM samples, enabled unequivocal detection of endotoxin with a sensitivity that is comparable to the LAL assay. FLG also triggered TNF-α production in the presence of the LPS inhibitor, pointing to an intrinsic pro-inflammatory effect. Finally, we present guidelines for the preparation of endotoxin-free GO, validated by using the TET.
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Affiliation(s)
- Sourav P. Mukherjee
- Nanosafety & Nanomedicine Laboratory, Division of Molecular Toxicology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Neus Lozano
- Nanomedicine Laboratory, Faculty of Medical & Human Sciences and National Graphene Institute, University of Manchester, Manchester, United Kingdom
| | - Melanie Kucki
- Particles-Biology Interactions Laboratory, Swiss Federal Laboratories for Materials Science and Technology, St. Gallen, Switzerland
| | | | - Leon Newman
- Nanomedicine Laboratory, Faculty of Medical & Human Sciences and National Graphene Institute, University of Manchester, Manchester, United Kingdom
| | - Ester Vázquez
- Department of Organic Chemistry, University of Castilla-La Mancha, Ciudad Real, Spain
| | - Kostas Kostarelos
- Nanomedicine Laboratory, Faculty of Medical & Human Sciences and National Graphene Institute, University of Manchester, Manchester, United Kingdom
| | - Peter Wick
- Particles-Biology Interactions Laboratory, Swiss Federal Laboratories for Materials Science and Technology, St. Gallen, Switzerland
| | - Bengt Fadeel
- Nanosafety & Nanomedicine Laboratory, Division of Molecular Toxicology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
- * E-mail:
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133
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In vitro toxicity assessment of oral nanocarriers. Adv Drug Deliv Rev 2016; 106:381-401. [PMID: 27544694 DOI: 10.1016/j.addr.2016.08.007] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Revised: 08/04/2016] [Accepted: 08/09/2016] [Indexed: 02/08/2023]
Abstract
The fascinating properties of nanomaterials opened new frontiers in medicine. Nanocarriers are useful systems in transporting drugs to site-specific targets. The unique physico-chemical characteristics making nanocarriers promising devices to treat diseases may also be responsible for potential adverse effects. In order to develop functional nano-based drug delivery systems, efficacy and safety should be carefully evaluated. To date, no common testing strategy to address nanomaterial toxicological challenges has been generated. Different cell culture models are currently used to evaluate nanocarrier safety using conventional in vitro assays, but overall they have generated a huge amount of conflicting data. In this review we describe state-of-the-art approaches for in vitro testing of orally administered nanocarriers, highlighting the importance of developing harmonized and validated standard operating procedures. These procedures should be applied in a safe-by-design context with the aim to reduce and/or eliminate the uncertainties and risks associated with nanomedicine development.
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134
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Silver nanoparticles: Significance of physicochemical properties and assay interference on the interpretation of in vitro cytotoxicity studies. Toxicol In Vitro 2016; 38:179-192. [PMID: 27816503 DOI: 10.1016/j.tiv.2016.10.012] [Citation(s) in RCA: 138] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Revised: 09/29/2016] [Accepted: 10/31/2016] [Indexed: 01/08/2023]
Abstract
Silver nanoparticles (AgNPs) have generated a great deal of interest in the research, consumer product, and medical product communities due to their antimicrobial and anti-biofouling properties. However, in addition to their antimicrobial action, concerns have been expressed about the potential adverse human health effects of AgNPs. In vitro cytotoxicity studies often are used to characterize the biological response to AgNPs and the results of these studies may be used to identify hazards associated with exposure to AgNPs. Various factors, such as nanomaterial size (diameter), surface area, surface charge, redox potential, surface functionalization, and composition play a role in the development of toxicity in in vitro test systems. In addition, the interference of AgNPs with in vitro cytotoxicity assays may result in false negative or false positive results in some in vitro biological tests. The goal of this review is to: 1) summarize the impact of physical-chemical parameters, including size, shape, surface chemistry and aggregate formation on the in vitro cytotoxic effects of AgNPs; and 2) explore the nature of AgNPs interference in in vitro cytotoxicity assays.
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135
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Holt BD, Wright ZM, Arnold AM, Sydlik SA. Graphene oxide as a scaffold for bone regeneration. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2016; 9. [PMID: 27781398 DOI: 10.1002/wnan.1437] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Revised: 08/26/2016] [Accepted: 09/06/2016] [Indexed: 12/12/2022]
Abstract
Graphene oxide (GO), the oxidized form of graphene, holds great potential as a component of biomedical devices, deriving utility from its ability to support a broad range of chemical functionalities and its exceptional mechanical, electronic, and thermal properties. GO composites can be tuned chemically to be biomimetic, and mechanically to be stiff yet strong. These unique properties make GO-based materials promising candidates as a scaffold for bone regeneration. However, questions still exist as to the compatibility and long-term toxicity of nanocarbon materials. Unlike other nanocarbons, GO is meta-stable, water dispersible, and autodegrades in water on the timescale of months to humic acid-like materials, the degradation products of all organic matter. Thus, GO offers better prospects for biological compatibility over other nanocarbons. Recently, many publications have demonstrated enhanced osteogenic performance of GO-containing composites. Ongoing work toward surface modification or coating strategies could be useful to minimize the inflammatory response and improve compatibility of GO as a component of medical devices. Furthermore, biomimetic modifications could offer mechanical and chemical environments that encourage osteogenesis. So long as care is given to assure their safety, GO-based materials may be poised to become the next generation scaffold for bone regeneration. WIREs Nanomed Nanobiotechnol 2017, 9:e1437. doi: 10.1002/wnan.1437 For further resources related to this article, please visit the WIREs website.
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Affiliation(s)
- Brian D Holt
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA, USA
| | - Zoe M Wright
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA, USA
| | - Anne M Arnold
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA, USA
| | - Stefanie A Sydlik
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA, USA
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136
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Kuku G, Saricam M, Akhatova F, Danilushkina A, Fakhrullin R, Culha M. Surface-Enhanced Raman Scattering to Evaluate Nanomaterial Cytotoxicity on Living Cells. Anal Chem 2016; 88:9813-9820. [PMID: 27611981 DOI: 10.1021/acs.analchem.6b02917] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The increasing number of reports about false positive or negative results from conventional cytotoxicity assays of nanomaterials (NMs) suggests that more reliable NM toxicity assessment methods should be developed. Here, we report a novel approach for nanotoxicity evaluation based on surface-enhanced Raman spectroscopy (SERS). Three model NMs were tested on two model cell lines and the results were validated by WST-1 cytotoxicity assay and annexin V-FITC/propidium iodide (PI) staining as apoptosis-necrosis assay. The localization of nanoparticles (NPs) in the cells and the cellular conditions upon NP incubation were visualized by transmission electron microscopy (TEM) and enhanced dark-field (EDF) microscopy. SERS revealed a broader view on the consequences of cell-NM interactions compared to the conventional cytotoxicity assays where only one aspect of toxicity can be measured by one assay type. The results suggest that SERS can significantly contribute to the cytotoxicity evaluation bypassing NM or assay component-related complications with less effort.
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Affiliation(s)
- Gamze Kuku
- Department of Genetics and Bioengineering, Yeditepe University , Atasehir, Istanbul, 34755, Turkey
| | - Melike Saricam
- Department of Genetics and Bioengineering, Yeditepe University , Atasehir, Istanbul, 34755, Turkey
| | - Farida Akhatova
- Bionanotechnology Laboratory, Institute of Fundamental Medicine and Biology, Kazan Federal University , Kreml uramı 18, Kazan, Republic of Tatarstan, 420008, Russian Federation
| | - Anna Danilushkina
- Bionanotechnology Laboratory, Institute of Fundamental Medicine and Biology, Kazan Federal University , Kreml uramı 18, Kazan, Republic of Tatarstan, 420008, Russian Federation
| | - Rawil Fakhrullin
- Bionanotechnology Laboratory, Institute of Fundamental Medicine and Biology, Kazan Federal University , Kreml uramı 18, Kazan, Republic of Tatarstan, 420008, Russian Federation
| | - Mustafa Culha
- Department of Genetics and Bioengineering, Yeditepe University , Atasehir, Istanbul, 34755, Turkey
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137
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Wagner A, Eldawud R, White A, Agarwal S, Stueckle TA, Sierros KA, Rojanasakul Y, Gupta RK, Dinu CZ. Toxicity evaluations of nanoclays and thermally degraded byproducts through spectroscopical and microscopical approaches. Biochim Biophys Acta Gen Subj 2016; 1861:3406-3415. [PMID: 27612663 DOI: 10.1016/j.bbagen.2016.09.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Revised: 08/23/2016] [Accepted: 09/04/2016] [Indexed: 01/03/2023]
Abstract
BACKGROUND Montmorillonite is a type of nanoclay that originates from the clay fraction of the soil and is incorporated into polymers to form nanocomposites with enhanced mechanical strength, barrier, and flammability properties used for food packaging, automotive, and medical devices. However, with implementation in such consumer applications, the interaction of montmorillonite-based composites or derived byproducts with biological systems needs to be investigated. METHODS Herein we examined the potential of Cloisite Na+ (pristine) and Cloisite 30B (organically modified montmorillonite nanoclay) and their thermally degraded byproducts' to induce toxicity in model human lung epithelial cells. The experimental set-up mimicked biological exposure in manufacturing and disposal areas and employed cellular treatments with occupationally relevant doses of nanoclays previously characterized using spectroscopical and microscopical approaches. For nanoclay-cellular interactions and for cellular analyses respectively, biosensorial-based analytical platforms were used, with induced cellular changes being confirmed via live cell counts, viability assays, and cell imaging. RESULTS Our analysis of byproducts' chemical and physical properties revealed both structural and functional changes. Real-time high throughput analyses of exposed cellular systems confirmed that nanoclay induced significant toxic effects, with Cloisite 30B showing time-dependent decreases in live cell count and cellular viability relative to control and pristine nanoclay, respectively. Byproducts produced less toxic effects; all treatments caused alterations in the cell morphology upon exposure. CONCLUSIONS Our morphological, behavioral, and viability cellular changes show that nanoclays have the potential to produce toxic effects when used both in manufacturing or disposal environments. GENERAL SIGNIFICANCE The reported toxicological mechanisms prove the extensibility of a biosensorial-based platform for cellular behavior analysis upon treatment with a variety of nanomaterials.
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Affiliation(s)
- Alixandra Wagner
- Department of Chemical and Biomedical Engineering, West Virginia University, Morgantown, WV 26506, USA
| | - Reem Eldawud
- Department of Chemical and Biomedical Engineering, West Virginia University, Morgantown, WV 26506, USA
| | - Andrew White
- Department of Chemical and Biomedical Engineering, West Virginia University, Morgantown, WV 26506, USA
| | - Sushant Agarwal
- Department of Chemical and Biomedical Engineering, West Virginia University, Morgantown, WV 26506, USA
| | - Todd A Stueckle
- National Institute for Occupational Safety and Health, Morgantown, WV 26505, USA
| | - Konstantinos A Sierros
- Department of Mechanical and Aerospace Engineering, West Virginia University, Morgantown, WV 26506, USA
| | - Yon Rojanasakul
- Department of Pharmaceutical Sciences, West Virginia University, Morgantown, WV, 26506, USA
| | - Rakesh K Gupta
- Department of Chemical and Biomedical Engineering, West Virginia University, Morgantown, WV 26506, USA.
| | - Cerasela Zoica Dinu
- Department of Chemical and Biomedical Engineering, West Virginia University, Morgantown, WV 26506, USA.
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138
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Li Y, Doak SH, Yan J, Chen DH, Zhou M, Mittelstaedt RA, Chen Y, Li C, Chen T. Factors affecting the in vitro micronucleus assay for evaluation of nanomaterials. Mutagenesis 2016; 32:151-159. [PMID: 27567283 DOI: 10.1093/mutage/gew040] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
A number of in vitro methodologies have been used to assess the genotoxicity of different nanomaterials, including titanium dioxide nanoparticles (TiO2 NPs) and silver nanoparticles (AgNPs). The in vitro micronucleus assay is one of the most commonly used test methods for genotoxicity evaluation of nanomaterials. However, due to the novel features of nanomaterials, such as high adsorption capacity and fluorescence properties, there are unexpected interactions with experimental components and detection systems. In this study, we evaluate the interference by two nanoparticles, AgNPs and TiO2 NPs, with the in vitro micronucleus assay system and possible confounding factors affecting cytotoxicity and genotoxicity assessment of the nanomaterials including cell lines with different p53 status, nanoparticle coatings and fluorescence, cytochalasin B, fetal bovine serum in cell treatment medium and different measurement methodologies for detecting micronuclei. Our results showed that micronucleus induction by AgNPs was similar when evaluated using flow cytometry or microscope, whereas the induction by TiO2 NPs was different using the two methods due to TiO2's fluorescence interference with the cytometry equipment. Cells with the mutated p53 gene were more sensitive to micronucleus induction by AgNPs than the p53 wild-type cells. The presence of serum during treatment increased the toxicity of AgNPs. The coatings of nanoparticles played an important role in the genotoxicity of AgNPs. These collective data highlight the importance of considering the unique properties of nanoparticles in assessing their genotoxicity using the in vitro micronucleus assay.
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Affiliation(s)
- Yan Li
- Division of Genetic and Molecular Toxicology, National Center for Toxicological Research, U.S. Food and Drug Administration, 3900 NCTR Rd., Jefferson, AR 72079, USA.,Covance Laboratories Inc. 671 S. Meridian Rd., Greenfield, IN 46140, USA
| | - Shareen H Doak
- Institute of Life Science, Swansea University Medical School, Singleton Park, Swansea SA2 8PP, Wales, UK
| | - Jian Yan
- Division of Genetic and Molecular Toxicology, National Center for Toxicological Research, U.S. Food and Drug Administration, 3900 NCTR Rd., Jefferson, AR 72079, USA
| | - David H Chen
- Columbia College, Columbia University in the City of New York, 2960 Broadway, New York, NY 10027, USA and
| | - Min Zhou
- Department of Cancer Systems Imaging, University of Texas MD Anderson Cancer Center, 1881 East Road, Houston, TX 77054, USA
| | - Roberta A Mittelstaedt
- Division of Genetic and Molecular Toxicology, National Center for Toxicological Research, U.S. Food and Drug Administration, 3900 NCTR Rd., Jefferson, AR 72079, USA
| | - Ying Chen
- Division of Genetic and Molecular Toxicology, National Center for Toxicological Research, U.S. Food and Drug Administration, 3900 NCTR Rd., Jefferson, AR 72079, USA
| | - Chun Li
- Department of Cancer Systems Imaging, University of Texas MD Anderson Cancer Center, 1881 East Road, Houston, TX 77054, USA
| | - Tao Chen
- Division of Genetic and Molecular Toxicology, National Center for Toxicological Research, U.S. Food and Drug Administration, 3900 NCTR Rd., Jefferson, AR 72079, USA,
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139
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Lalwani G, D'agati M, Gopalan A, Rao M, Schneller J, Sitharaman B. Three-dimensional macroporous graphene scaffolds for tissue engineering. J Biomed Mater Res A 2016; 105:73-83. [PMID: 27529473 DOI: 10.1002/jbm.a.35867] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2016] [Revised: 07/28/2016] [Accepted: 08/10/2016] [Indexed: 12/12/2022]
Abstract
The assembly of carbon nanomaterials into three-dimensional (3D) porous scaffolds is critical to harness their unique physiochemical properties for tissue engineering and regenerative medicine applications. In this study, we report the fabrication, characterization, and in vitro cytocompatibility of true 3D (>1 mm in all three dimensions), macroscopic (3-8 mm in height and 4-6 mm in diameter), chemically cross-linked graphene scaffolds prepared via radical initiated thermal cross-linking of single- and multiwalled graphene oxide nanoribbons (SWGONRs and MWGONRs). SWGONR and MWGONR scaffolds possess tunable porosity (∼65-80%) and interconnected macro-, micro-, and nanoscale pores. Human adipose derived stem cells (ADSCs) and murine MC3T3 preosteoblast cells show good cell viability on SWGONR and MWGONR scaffolds after 1, 3, and 5 days comparable to 3D poly(lactic-co-glycolic) acid (PLGA) scaffolds. Confocal live-cell imaging showed that cells were metabolically active and could spread on SWGONR and MWGONR scaffolds. Immunofluorescence imaging showed the presence of focal adhesion protein vinculin and expression of cell proliferation marker Ki-67 suggesting that cells could attach and proliferate on SWGONR and MWGONR scaffolds. These results indicate that cross-linked SWGONR and MWGONR scaffolds are cytocompatible and opens-avenues toward the development of 3D multifunctional graphene scaffolds for tissue engineering applications. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 105A: 73-83, 2017.
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Affiliation(s)
- Gaurav Lalwani
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, New York, 11794-5281
| | - Michael D'agati
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, New York, 11794-5281
| | - Anu Gopalan
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, New York, 11794-5281
| | - Manisha Rao
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, New York, 11794-5281
| | - Jessica Schneller
- Department of Bioengineering, National Institutes of Health, Bethesda, Maryland, 20892
| | - Balaji Sitharaman
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, New York, 11794-5281
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140
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Shatkin JA, Ong KJ. Alternative Testing Strategies for Nanomaterials: State of the Science and Considerations for Risk Analysis. RISK ANALYSIS : AN OFFICIAL PUBLICATION OF THE SOCIETY FOR RISK ANALYSIS 2016; 36:1564-1580. [PMID: 27273523 DOI: 10.1111/risa.12642] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Revised: 03/02/2016] [Accepted: 04/19/2016] [Indexed: 06/06/2023]
Abstract
The rapid growth of the nanotechnology industry has warranted equal progress in the nanotoxicology and risk assessment fields. In vivo models have traditionally been used to determine human and environmental risk for chemicals; however, the use of these tests has limitations, and there are global appeals to develop reliable alternatives to animal testing. Many have investigated the use of alternative (nonanimal) testing methods and strategies have quickly developed and resulted in the generation of large toxicological data sets for numerous nanomaterials (NMs). Due to the novel physicochemical properties of NMs that are related to surface characteristics, the approach toward toxicity test development has distinct considerations from traditional chemicals, bringing new requirements for adapting these approaches for NMs. The methodical development of strategies that combine multiple alternative tests can be useful for predictive NM risk assessment and help screening-level decision making. This article provides an overview of the main developments in alternative methods and strategies for reducing uncertainty in NM risk assessment, including advantages and disadvantages of in vitro, ex vivo, and in silico methods, and examples of existing comprehensive strategies. In addition, knowledge gaps are identified toward improvements for experimental and strategy design, specifically highlighting the need to represent realistic exposure scenarios and to consider NM-specific concerns such as characterization, assay interferences, and standardization. Overall, this article aims to improve the reliability and utility of alternative testing methods and strategies for risk assessment of manufactured NMs.
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Affiliation(s)
| | - K J Ong
- Vireo Advisors, LLC, Boston, MA, USA
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141
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Kurapati R, Kostarelos K, Prato M, Bianco A. Biomedical Uses for 2D Materials Beyond Graphene: Current Advances and Challenges Ahead. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:6052-74. [PMID: 27105929 DOI: 10.1002/adma.201506306] [Citation(s) in RCA: 212] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Indexed: 05/25/2023]
Abstract
Currently, a broad interdisciplinary research effort is pursued on biomedical applications of 2D materials (2DMs) beyond graphene, due to their unique physicochemical and electronic properties. The discovery of new 2DMs is driven by the diverse chemical compositions and tuneable characteristics offered. Researchers are increasingly attracted to exploit those as drug delivery systems, highly efficient photothermal modalities, multimodal therapeutics with non-invasive diagnostic capabilities, biosensing, and tissue engineering. A crucial limitation of some of the 2DMs is their moderate colloidal stability in aqueous media. In addition, the lack of suitable functionalisation strategies should encourage the exploration of novel chemical methodologies with that purpose. Moreover, the clinical translation of these emerging materials will require undertaking of fundamental research on biocompatibility, toxicology and biopersistence in the living body as well as in the environment. Here, a thorough account of the biomedical applications using 2DMs explored today is given.
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Affiliation(s)
- Rajendra Kurapati
- CNRS, Institut de Biologie Moléculaire et Cellulaire, Laboratoire d'Immunopathologie et Chimie Thérapeutique, 67000, Strasbourg, France
| | - Kostas Kostarelos
- Nanomedicine Laboratory, School of Medicine and National Graphene Institute, University of Manchester, AV Hill Building, Manchester, M13 9PT, United Kingdom
| | - Maurizio Prato
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università di Trieste, 34127, Trieste, Italy
- Carbon Nanobiotechnology Laboratory, CIC biomaGUNE, Donostia-San Sebastian, Paseo de Miramón 182, 20009, Spain
- Basque Foundation for Science (IKERBASQUE), Bilbao, 48013, Spain
| | - Alberto Bianco
- CNRS, Institut de Biologie Moléculaire et Cellulaire, Laboratoire d'Immunopathologie et Chimie Thérapeutique, 67000, Strasbourg, France
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142
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Stone V, Johnston HJ, Balharry D, Gernand JM, Gulumian M. Approaches to Develop Alternative Testing Strategies to Inform Human Health Risk Assessment of Nanomaterials. RISK ANALYSIS : AN OFFICIAL PUBLICATION OF THE SOCIETY FOR RISK ANALYSIS 2016; 36:1538-1550. [PMID: 27285586 DOI: 10.1111/risa.12645] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2016] [Revised: 02/11/2016] [Accepted: 04/12/2016] [Indexed: 06/06/2023]
Abstract
The development of alternative testing strategies (ATS) for hazard assessment of new and emerging materials is high on the agenda of scientists, funders, and regulators. The relatively large number of nanomaterials on the market and under development means that an increasing emphasis will be placed on the use of reliable, predictive ATS when assessing their safety. We have provided recommendations as to how ATS development for assessment of nanomaterial hazard may be accelerated. Predefined search terms were used to identify the quantity and distribution of peer-reviewed publications for nanomaterial hazard assessment following inhalation, ingestion, or dermal absorption. A summary of knowledge gaps relating to nanomaterial hazard is provided to identify future research priorities and areas in which a rich data set might exist to allow ATS identification. Consultation with stakeholders (e.g., academia, industry, regulators) was critical to ensure that current expert opinion was reflected. The gap analysis revealed an abundance of studies that assessed the local and systemic impacts of inhaled particles, and so ATS are available for immediate use. Development of ATS for assessment of the dermal toxicity of chemicals is already relatively advanced, and these models should be applied to nanomaterials as relatively few studies have assessed the dermal toxicity of nanomaterials to date. Limited studies have investigated the local and systemic impacts of ingested nanomaterials. If the recommendations for research prioritization proposed are adopted, it is envisioned that a comprehensive battery of ATS can be developed to support the risk assessment process for nanomaterials. Some alternative models are available for immediate implementation, while others require more developmental work to become widely adopted. Case studies are included that can be used to inform the selection of alternative models and end points when assessing the pathogenicity of fibers and mode of action of nanomaterial toxicity.
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Affiliation(s)
- Vicki Stone
- School of Life Sciences, Nano Safety Research Group, Heriot-Watt University, Edinburgh, UK
| | - Helinor J Johnston
- School of Life Sciences, Nano Safety Research Group, Heriot-Watt University, Edinburgh, UK
| | - Dominique Balharry
- School of Life Sciences, Nano Safety Research Group, Heriot-Watt University, Edinburgh, UK
- Centre for Genomic & Experimental Medicine, Institute of Genetics & Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - Jeremy M Gernand
- Department of Energy and Mineral Engineering, The Pennsylvania State University, University Park, PA, USA
| | - Mary Gulumian
- Toxicology and Biochemistry Section NIOH, Johannesburg, South Africa
- Haematology and Molecular Medicine Department School of Pathology, University of the Witwatersrand, Johannesburg, South Africa
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143
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Shatkin JA, Ong KJ, Beaudrie C, Clippinger AJ, Hendren CO, Haber LT, Hill M, Holden P, Kennedy AJ, Kim B, MacDonell M, Powers CM, Sharma M, Sheremeta L, Stone V, Sultan Y, Turley A, White RH. Advancing Risk Analysis for Nanoscale Materials: Report from an International Workshop on the Role of Alternative Testing Strategies for Advancement. RISK ANALYSIS : AN OFFICIAL PUBLICATION OF THE SOCIETY FOR RISK ANALYSIS 2016; 36:1520-1537. [PMID: 27510619 DOI: 10.1111/risa.12683] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2015] [Revised: 07/07/2016] [Accepted: 07/07/2016] [Indexed: 06/06/2023]
Abstract
The Society for Risk Analysis (SRA) has a history of bringing thought leadership to topics of emerging risk. In September 2014, the SRA Emerging Nanoscale Materials Specialty Group convened an international workshop to examine the use of alternative testing strategies (ATS) for manufactured nanomaterials (NM) from a risk analysis perspective. Experts in NM environmental health and safety, human health, ecotoxicology, regulatory compliance, risk analysis, and ATS evaluated and discussed the state of the science for in vitro and other alternatives to traditional toxicology testing for NM. Based on this review, experts recommended immediate and near-term actions that would advance ATS use in NM risk assessment. Three focal areas-human health, ecological health, and exposure considerations-shaped deliberations about information needs, priorities, and the next steps required to increase confidence in and use of ATS in NM risk assessment. The deliberations revealed that ATS are now being used for screening, and that, in the near term, ATS could be developed for use in read-across or categorization decision making within certain regulatory frameworks. Participants recognized that leadership is required from within the scientific community to address basic challenges, including standardizing materials, protocols, techniques and reporting, and designing experiments relevant to real-world conditions, as well as coordination and sharing of large-scale collaborations and data. Experts agreed that it will be critical to include experimental parameters that can support the development of adverse outcome pathways. Numerous other insightful ideas for investment in ATS emerged throughout the discussions and are further highlighted in this article.
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Affiliation(s)
| | | | | | | | | | | | | | - Patricia Holden
- UC Santa Barbara, Bren School of Environmental Science & Management, ERI, and UC CEIN, University of California, Santa Barbara, CA, USA
| | - Alan J Kennedy
- U.S. Army Engineer Research and Development Center, Environmental Laboratory, Vicksburg, MS, USA
| | | | - Margaret MacDonell
- Argonne National Laboratory, Environmental Science Division, Argonne, IL, USA
| | - Christina M Powers
- U.S. Environmental Protection Agency, Office of Air and Radiation, Office of Transportation and Air Quality, Ann Arbor, MI, USA
| | - Monita Sharma
- PETA International Science Consortium Ltd, London, UK
| | | | - Vicki Stone
- John Muir Building Gait 1 Heriot-Watt University, Edinburgh, Scotland, UK
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144
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Maas M. Carbon Nanomaterials as Antibacterial Colloids. MATERIALS (BASEL, SWITZERLAND) 2016; 9:E617. [PMID: 28773737 PMCID: PMC5509023 DOI: 10.3390/ma9080617] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Revised: 07/12/2016] [Accepted: 07/15/2016] [Indexed: 12/25/2022]
Abstract
Carbon nanomaterials like graphene, carbon nanotubes, fullerenes and the various forms of diamond have attracted great attention for their vast potential regarding applications in electrical engineering and as biomaterials. The study of the antibacterial properties of carbon nanomaterials provides fundamental information on the possible toxicity and environmental impact of these materials. Furthermore, as a result of the increasing prevalence of resistant bacteria strains, the development of novel antibacterial materials is of great importance. This article reviews current research efforts on characterizing the antibacterial activity of carbon nanomaterials from the perspective of colloid and interface science. Building on these fundamental findings, recent functionalization strategies for enhancing the antibacterial effect of carbon nanomaterials are described. The review concludes with a comprehensive outlook that summarizes the most important discoveries and trends regarding antibacterial carbon nanomaterials.
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Affiliation(s)
- Michael Maas
- Faculty of Production Engineering, Advanced Ceramics, MAPEX-Centre for Materials and Processes, University of Bremen, Bremen 28359, Germany.
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145
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Burblies N, Schulze J, Schwarz HC, Kranz K, Motz D, Vogt C, Lenarz T, Warnecke A, Behrens P. Coatings of Different Carbon Nanotubes on Platinum Electrodes for Neuronal Devices: Preparation, Cytocompatibility and Interaction with Spiral Ganglion Cells. PLoS One 2016; 11:e0158571. [PMID: 27385031 PMCID: PMC4934701 DOI: 10.1371/journal.pone.0158571] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Accepted: 06/18/2016] [Indexed: 12/28/2022] Open
Abstract
Cochlear and deep brain implants are prominent examples for neuronal prostheses with clinical relevance. Current research focuses on the improvement of the long-term functionality and the size reduction of neural interface electrodes. A promising approach is the application of carbon nanotubes (CNTs), either as pure electrodes but especially as coating material for electrodes. The interaction of CNTs with neuronal cells has shown promising results in various studies, but these appear to depend on the specific type of neurons as well as on the kind of nanotubes. To evaluate a potential application of carbon nanotube coatings for cochlear electrodes, it is necessary to investigate the cytocompatibility of carbon nanotube coatings on platinum for the specific type of neuron in the inner ear, namely spiral ganglion neurons. In this study we have combined the chemical processing of as-delivered CNTs, the fabrication of coatings on platinum, and the characterization of the electrical properties of the coatings as well as a general cytocompatibility testing and the first cell culture investigations of CNTs with spiral ganglion neurons. By applying a modification process to three different as-received CNTs via a reflux treatment with nitric acid, long-term stable aqueous CNT dispersions free of dispersing agents were obtained. These were used to coat platinum substrates by an automated spray-coating process. These coatings enhance the electrical properties of platinum electrodes, decreasing the impedance values and raising the capacitances. Cell culture investigations of the different CNT coatings on platinum with NIH3T3 fibroblasts attest an overall good cytocompatibility of these coatings. For spiral ganglion neurons, this can also be observed but a desired positive effect of the CNTs on the neurons is absent. Furthermore, we found that the well-established DAPI staining assay does not function on the coatings prepared from single-wall nanotubes.
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Affiliation(s)
- Niklas Burblies
- Institute for Inorganic Chemistry, Leibniz University Hannover, Hanover, Germany
- Cluster of Excellence Hearing4all, Hanover, Germany
| | - Jennifer Schulze
- Department of Otorhinolaryngology, Head and Neck Surgery, Hannover Medical School, Hanover, Germany
- Cluster of Excellence Hearing4all, Hanover, Germany
| | - Hans-Christoph Schwarz
- Institute for Inorganic Chemistry, Leibniz University Hannover, Hanover, Germany
- Cluster of Excellence Hearing4all, Hanover, Germany
| | - Katharina Kranz
- Department of Otorhinolaryngology, Head and Neck Surgery, Hannover Medical School, Hanover, Germany
- Cluster of Excellence Hearing4all, Hanover, Germany
| | - Damian Motz
- Institute for Inorganic Chemistry, Leibniz University Hannover, Hanover, Germany
| | - Carla Vogt
- Institute for Inorganic Chemistry, Leibniz University Hannover, Hanover, Germany
| | - Thomas Lenarz
- Department of Otorhinolaryngology, Head and Neck Surgery, Hannover Medical School, Hanover, Germany
- Cluster of Excellence Hearing4all, Hanover, Germany
| | - Athanasia Warnecke
- Department of Otorhinolaryngology, Head and Neck Surgery, Hannover Medical School, Hanover, Germany
- Cluster of Excellence Hearing4all, Hanover, Germany
| | - Peter Behrens
- Institute for Inorganic Chemistry, Leibniz University Hannover, Hanover, Germany
- Cluster of Excellence Hearing4all, Hanover, Germany
- * E-mail:
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146
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Collins AR, Annangi B, Rubio L, Marcos R, Dorn M, Merker C, Estrela-Lopis I, Cimpan MR, Ibrahim M, Cimpan E, Ostermann M, Sauter A, Yamani NE, Shaposhnikov S, Chevillard S, Paget V, Grall R, Delic J, de-Cerio FG, Suarez-Merino B, Fessard V, Hogeveen KN, Fjellsbø LM, Pran ER, Brzicova T, Topinka J, Silva MJ, Leite PE, Ribeiro AR, Granjeiro JM, Grafström R, Prina-Mello A, Dusinska M. High throughput toxicity screening and intracellular detection of nanomaterials. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2016; 9. [PMID: 27273980 PMCID: PMC5215403 DOI: 10.1002/wnan.1413] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Revised: 04/08/2016] [Accepted: 04/12/2016] [Indexed: 12/25/2022]
Abstract
With the growing numbers of nanomaterials (NMs), there is a great demand for rapid and reliable ways of testing NM safety—preferably using in vitro approaches, to avoid the ethical dilemmas associated with animal research. Data are needed for developing intelligent testing strategies for risk assessment of NMs, based on grouping and read‐across approaches. The adoption of high throughput screening (HTS) and high content analysis (HCA) for NM toxicity testing allows the testing of numerous materials at different concentrations and on different types of cells, reduces the effect of inter‐experimental variation, and makes substantial savings in time and cost. HTS/HCA approaches facilitate the classification of key biological indicators of NM‐cell interactions. Validation of in vitroHTS tests is required, taking account of relevance to in vivo results. HTS/HCA approaches are needed to assess dose‐ and time‐dependent toxicity, allowing prediction of in vivo adverse effects. Several HTS/HCA methods are being validated and applied for NM testing in the FP7 project NANoREG, including Label‐free cellular screening of NM uptake, HCA, High throughput flow cytometry, Impedance‐based monitoring, Multiplex analysis of secreted products, and genotoxicity methods—namely High throughput comet assay, High throughput in vitro micronucleus assay, and γH2AX assay. There are several technical challenges with HTS/HCA for NM testing, as toxicity screening needs to be coupled with characterization of NMs in exposure medium prior to the test; possible interference of NMs with HTS/HCA techniques is another concern. Advantages and challenges of HTS/HCA approaches in NM safety are discussed. WIREs Nanomed Nanobiotechnol 2017, 9:e1413. doi: 10.1002/wnan.1413 For further resources related to this article, please visit the WIREs website.
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Affiliation(s)
- Andrew R Collins
- Comet Biotech AS, and Department of Nutrition, University of Oslo, Norway
| | | | - Laura Rubio
- Grup de Mutagènesi, Departament de Genètica i de Microbiologia, Facultat de Biociències, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Ricard Marcos
- Grup de Mutagènesi, Departament de Genètica i de Microbiologia, Facultat de Biociències, Universitat Autònoma de Barcelona, Bellaterra, Spain.,CIBER Epidemiología y Salud Pública, ISCIII, Spain
| | - Marco Dorn
- Institute of Biophysics and Medical Physics, University of Leipzig, Leipzig, Germany
| | - Carolin Merker
- Institute of Biophysics and Medical Physics, University of Leipzig, Leipzig, Germany
| | - Irina Estrela-Lopis
- Institute of Biophysics and Medical Physics, University of Leipzig, Leipzig, Germany
| | - Mihaela Roxana Cimpan
- Department of Clinical Dentistry, Faculty of Medicine and Dentistry, University of Bergen, Norway
| | - Mohamed Ibrahim
- Department of Clinical Dentistry, Faculty of Medicine and Dentistry, University of Bergen, Norway
| | - Emil Cimpan
- Department of Electrical Engineering, Faculty of Engineering, Bergen University College, Norway
| | - Melanie Ostermann
- Department of Clinical Dentistry, Faculty of Medicine and Dentistry, University of Bergen, Norway
| | - Alexander Sauter
- Department of Clinical Dentistry, Faculty of Medicine and Dentistry, University of Bergen, Norway
| | - Naouale El Yamani
- Comet Biotech AS, and Department of Nutrition, University of Oslo, Norway.,Health Effects Group, Department of Environmental Chemistry, NILU- Norwegian Institute for Air Research, Kjeller, Norway
| | | | - Sylvie Chevillard
- Commissariat à l'Energie Atomique et aux Energies Alternatives (CEA) Direction des Sciences du Vivant, Institut de Radiobiologie Cellulaire et Moléculaire, Service de Radiobiologie Expérimentale et d'Innovation Technologique, Laboratoire de Cancérologie Expérimentale, Fontenay-aux-Roses cedex, France
| | - Vincent Paget
- Commissariat à l'Energie Atomique et aux Energies Alternatives (CEA) Direction des Sciences du Vivant, Institut de Radiobiologie Cellulaire et Moléculaire, Service de Radiobiologie Expérimentale et d'Innovation Technologique, Laboratoire de Cancérologie Expérimentale, Fontenay-aux-Roses cedex, France
| | - Romain Grall
- Commissariat à l'Energie Atomique et aux Energies Alternatives (CEA) Direction des Sciences du Vivant, Institut de Radiobiologie Cellulaire et Moléculaire, Service de Radiobiologie Expérimentale et d'Innovation Technologique, Laboratoire de Cancérologie Expérimentale, Fontenay-aux-Roses cedex, France
| | - Jozo Delic
- Commissariat à l'Energie Atomique et aux Energies Alternatives (CEA) Direction des Sciences du Vivant, Institut de Radiobiologie Cellulaire et Moléculaire, Service de Radiobiologie Expérimentale et d'Innovation Technologique, Laboratoire de Cancérologie Expérimentale, Fontenay-aux-Roses cedex, France
| | | | | | - Valérie Fessard
- ANSES Fougères Laboratory, Contaminant Toxicology Unit, France
| | | | - Lise Maria Fjellsbø
- Health Effects Group, Department of Environmental Chemistry, NILU- Norwegian Institute for Air Research, Kjeller, Norway
| | - Elise Runden Pran
- Health Effects Group, Department of Environmental Chemistry, NILU- Norwegian Institute for Air Research, Kjeller, Norway
| | - Tana Brzicova
- Institute of Experimental Medicine AS CR, Prague, Czech Republic
| | - Jan Topinka
- Institute of Experimental Medicine AS CR, Prague, Czech Republic
| | - Maria João Silva
- Human Genetics Department, National Institute of Health Doutor Ricardo Jorge and Centre for Toxicogenomics and Human Health, NMS/FCM, UNL, Lisbon, Portugal
| | - P E Leite
- Directory of Life Sciences Applied Metrology, National Institute of Metrology Quality and Technology, Rio de Janeiro, Brazil
| | - A R Ribeiro
- Directory of Life Sciences Applied Metrology, National Institute of Metrology Quality and Technology, Rio de Janeiro, Brazil
| | - J M Granjeiro
- Directory of Life Sciences Applied Metrology, National Institute of Metrology Quality and Technology, Rio de Janeiro, Brazil
| | - Roland Grafström
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Adriele Prina-Mello
- Nanomedicine Group, Trinity Centre for Health Sciences, Trinity College Dublin, Dublin, Ireland
| | - Maria Dusinska
- Health Effects Group, Department of Environmental Chemistry, NILU- Norwegian Institute for Air Research, Kjeller, Norway
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147
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Ghosh M, Das PK. Doxorubicin loaded 17β-estradiol based SWNT dispersions for target specific killing of cancer cells. Colloids Surf B Biointerfaces 2016; 142:367-376. [DOI: 10.1016/j.colsurfb.2016.03.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Revised: 02/29/2016] [Accepted: 03/01/2016] [Indexed: 10/22/2022]
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148
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Song ZM, Wang L, Chen N, Cao A, Liu Y, Wang H. Biological effects of agglomerated multi-walled carbon nanotubes. Colloids Surf B Biointerfaces 2016; 142:65-73. [DOI: 10.1016/j.colsurfb.2016.02.032] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2016] [Accepted: 02/15/2016] [Indexed: 11/28/2022]
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149
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Marchese Robinson RL, Lynch I, Peijnenburg W, Rumble J, Klaessig F, Marquardt C, Rauscher H, Puzyn T, Purian R, Åberg C, Karcher S, Vriens H, Hoet P, Hoover MD, Hendren CO, Harper SL. How should the completeness and quality of curated nanomaterial data be evaluated? NANOSCALE 2016; 8:9919-43. [PMID: 27143028 PMCID: PMC4899944 DOI: 10.1039/c5nr08944a] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Nanotechnology is of increasing significance. Curation of nanomaterial data into electronic databases offers opportunities to better understand and predict nanomaterials' behaviour. This supports innovation in, and regulation of, nanotechnology. It is commonly understood that curated data need to be sufficiently complete and of sufficient quality to serve their intended purpose. However, assessing data completeness and quality is non-trivial in general and is arguably especially difficult in the nanoscience area, given its highly multidisciplinary nature. The current article, part of the Nanomaterial Data Curation Initiative series, addresses how to assess the completeness and quality of (curated) nanomaterial data. In order to address this key challenge, a variety of related issues are discussed: the meaning and importance of data completeness and quality, existing approaches to their assessment and the key challenges associated with evaluating the completeness and quality of curated nanomaterial data. Considerations which are specific to the nanoscience area and lessons which can be learned from other relevant scientific disciplines are considered. Hence, the scope of this discussion ranges from physicochemical characterisation requirements for nanomaterials and interference of nanomaterials with nanotoxicology assays to broader issues such as minimum information checklists, toxicology data quality schemes and computational approaches that facilitate evaluation of the completeness and quality of (curated) data. This discussion is informed by a literature review and a survey of key nanomaterial data curation stakeholders. Finally, drawing upon this discussion, recommendations are presented concerning the central question: how should the completeness and quality of curated nanomaterial data be evaluated?
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Affiliation(s)
- Richard L. Marchese Robinson
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, James Parsons Building, Byrom Street, Liverpool, L3 3AF, United Kingdom
| | - Iseult Lynch
- School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, B15 2TT Birmingham, United Kingdom
| | - Willie Peijnenburg
- National Institute of Public Health and the Environment (RIVM), Bilthoven, The Netherlands
- Institute of Environmental Sciences, Leiden University, Leiden, The Netherlands
| | - John Rumble
- R&R Data Services, 11 Montgomery Avenue, Gaithersburg MD 20877 USA
| | - Fred Klaessig
- Pennsylvania Bio Nano Systems LLC, 3805 Old Easton Road, Doylestown, PA 18902
| | - Clarissa Marquardt
- Institute of Applied Computer Sciences (IAI), Karlsruhe Institute of Technology (KIT), Hermann v. Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Hubert Rauscher
- European Commission, Joint Research Centre, Institute for Health and Consumer Protection, Via Fermi 2749, 21027 Ispra (VA), Italy
| | - Tomasz Puzyn
- Laboratory of Environmental Chemistry, University of Gdansk, Wita Stwosza 63, 80-308 Gdansk, Poland
| | - Ronit Purian
- Faculty of Engineering, Tel Aviv University, Tel Aviv 69978 Israel
| | - Christoffer Åberg
- Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Sandra Karcher
- Civil and Environmental Engineering, Carnegie Mellon University, Pittsburgh, PA 15213-3890
| | - Hanne Vriens
- Department of Public Health and Primary Care, K.U.Leuven, Faculty of Medicine, Unit Environment & Health – Toxicology, Herestraat 49 (O&N 706), Leuven, Belgium
| | - Peter Hoet
- Department of Public Health and Primary Care, K.U.Leuven, Faculty of Medicine, Unit Environment & Health – Toxicology, Herestraat 49 (O&N 706), Leuven, Belgium
| | - Mark D. Hoover
- National Institute for Occupational Safety and Health, 1095 Willowdale Road, Morgantown, WV 26505-2888
| | - Christine Ogilvie Hendren
- Center for the Environmental Implications of NanoTechnology, Duke University, PO Box 90287 121 Hudson Hall, Durham NC 27708
| | - Stacey L. Harper
- Department of Environmental and Molecular Toxicology, School of Chemical, Biological and Environmental Engineering, Oregon State University, 1007 ALS, Corvallis, OR 97331
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150
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Almutary A, Sanderson BJS. The MTT and Crystal Violet Assays: Potential Confounders in Nanoparticle Toxicity Testing. Int J Toxicol 2016; 35:454-62. [PMID: 27207930 DOI: 10.1177/1091581816648906] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The toxicological effects of nanoparticles (NPs) on humans, animals, and environment are largely unknown. Assessment of NPs cytotoxicity depends on the choice of the test system. Due to NPs optical activity and absorption values, they can influence the classical cytotoxicity assay. Eight NPs were spiked in the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) and crystal violet assays and tested with HaCaT human skin cells. The MTT assay standard curve optical density (OD) measurements were altered by the presence of trisilanol phenyl and trisilanol isooctyl polyhedral oligomeric silsesquioxane particles. The crystal violet standard curve OD measurements were significantly shifted by gold NPs, but they did not affect the MTT assay. Carbon black decreased ODs in the MTT and crystal violet assays and was localized in the cell cytoplasm. These findings strongly indicate that a careful choice of in vitro viability systems is required to avoid flawed measurement of NPs toxicity.
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Affiliation(s)
- A Almutary
- Medical Biotechnology, School of Medicine, Nursing and Health Sciences, Flinders University, Adelaide, South Australia
| | - B J S Sanderson
- Medical Biotechnology, School of Medicine, Nursing and Health Sciences, Flinders University, Adelaide, South Australia
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