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Luo X, Wang Q, Liu W, Wu Y, Yang J, Chen P, Zhuang W, Zheng Y. Characterization and safety assessment of bamboo shoot shell cellulose nanofiber: Prepared by acidolysis combined with dynamic high-pressure microfluidization. Carbohydr Polym 2024; 335:122082. [PMID: 38616100 DOI: 10.1016/j.carbpol.2024.122082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 03/19/2024] [Accepted: 03/21/2024] [Indexed: 04/16/2024]
Abstract
The preparation of cellulose nanofiber (CNF) using traditional methods is currently facing challenges due to concerns regarding environmental pollution and safety. Herein, a novel CNF was obtained from bamboo shoot shell (BSS) by low-concentration acid and dynamic high-pressure microfluidization (DHPM) treatment. The resulting CNF was then characterized, followed by in vitro and in vivo safety assessments. Compared to insoluble dietary fiber (IDF), the diameters of HIDF (IDF after low-concentration acid hydrolysis) and CNF were significantly decreased to 167.13 nm and 70.97 nm, respectively. Meanwhile, HIDF and CNF showed a higher crystallinity index (71.32 % and 74.35 %). Structural analysis results indicated the successful removal of lignin and hemicellulose of HIDF and CNF, with CNF demonstrating improved thermostability. In vitro, a high dose of CNF (1500 μg/mL) did not show any signs of cytotoxicity on Caco-2 cells. In vivo, no death was observed in the experimental mice, and there was no significant difference between CNF (1000 mg/kg·bw) and control group in hematological index and histopathological analysis. Overall, this study presents an environmentally friendly method for preparing CNF from BSS while providing evidence regarding its safety through in vitro and in vivo assessments, laying the foundation for its potential application in food.
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Affiliation(s)
- Xianliang Luo
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Qi Wang
- Institute of Food Science and Technology, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian 350003, China
| | - Wangxin Liu
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Yirui Wu
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Junyi Yang
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Peng Chen
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Weijing Zhuang
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Yafeng Zheng
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China.
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Gomes SIL, Zanoni I, Blosi M, Costa AL, Hristozov D, Scott-Fordsmand JJ, Amorim MJB. Safe and sustainable by design Ag nanomaterials: A case study to evaluate the bio-reactivity in the environment using a soil model invertebrate. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 927:171860. [PMID: 38518823 DOI: 10.1016/j.scitotenv.2024.171860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 03/19/2024] [Accepted: 03/19/2024] [Indexed: 03/24/2024]
Abstract
Safe-and-sustainable-by-design (SSbD) nanomaterials (NMs) or NM-containing products are a priority. Silver (Ag) NMs have a vast array of applications, including biomedical and other products, even as nanopesticides. Thus, their release to the environment is expected to increase. The aim of the present study was to assess the ecotoxicity of the SSbD Ag NM to the soil model species Enchytraeus crypticus (Oligochaeta). The Ag NM tested consists in a SSbD Ag with biomedical applications, a hydroxyethyl cellulose (HEC) coated Ag NMs (AgHEC) and its toxicity was compared to the naked Ag NMs (Ag-Sigma), an Ag-based biomedical product (PLLA-Ag: Poly l-Lactide microfibers doped with Ag), and AgNO3. Effects were assessed both in soil and aqueous media, following the standard OECD guideline in soil (28 days) and the OECD extension (56 days), and short-term pulse (5 days) in aqueous media: reconstituted water (ISO water) and soil:water (S:W) extracts, followed by a 21-days recovery period in soil. Ag materials were thoroughly characterized as synthesized and during the test in media and animals. Results in S:W showed AgHEC was more toxic than Ag-Sigma (ca. 150 times) and PLLA-Ag (ca. 2.5 times), associated with a higher Ag uptake. Higher toxicity was related to a smaller hydrodynamic size and higher suspension stability, which in turn resulted in a higher bioavailability of Ag NMs and released ions, particularly in S:W. Toxicity was correlated with the main physicochemical features, providing useful prediction of AgNMs bioactivity. The ability to test E. crypticus in a range of media with different and/or increasing complexity (water, S:W extracts, soil) provided an excellent source to interpret results and is here recommended.
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Affiliation(s)
- Susana I L Gomes
- Department of Biology & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Ilaria Zanoni
- National Research Council of Italy (CNR) - Institute of Science Technology and Sustainability for Ceramics (ISSMC), Via Granolo 64, I-48018 Faenza, Italy
| | - Magda Blosi
- National Research Council of Italy (CNR) - Institute of Science Technology and Sustainability for Ceramics (ISSMC), Via Granolo 64, I-48018 Faenza, Italy
| | - Anna L Costa
- National Research Council of Italy (CNR) - Institute of Science Technology and Sustainability for Ceramics (ISSMC), Via Granolo 64, I-48018 Faenza, Italy
| | - Danail Hristozov
- Department of Environmental Sciences, Informatics and Statistics, University Ca' Foscari of Venice, Via Torino 155, 30172 Venice, Italy
| | | | - Mónica J B Amorim
- Department of Biology & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal.
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Yamashita Y, Tokunaga A, Aoki K, Ishizuka T, Uematsu H, Sakamoto H, Fujita S, Tanoue S. Assessing the Safety of Mechanically Fibrillated Cellulose Nanofibers (fib-CNF) via Toxicity Tests on Mice: Single Intratracheal Administration and 28 Days' Oral Intake. TOXICS 2024; 12:121. [PMID: 38393216 PMCID: PMC10893282 DOI: 10.3390/toxics12020121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 01/07/2024] [Accepted: 01/15/2024] [Indexed: 02/25/2024]
Abstract
Mechanically fibrillated cellulose nanofibers, known as fib-CNF (fiber length: 500 nm; diameter: 45 nm), are used in composites and as a natural thickener in foods. To evaluate their safety, we conducted a 28-day study in mice with inhalation exposure at 0.2 mg/body and oral administration of 400 mg/kg/day. Inhalation exposure to fib-CNF caused transient weight loss, changes in blood cell counts, and increased lung weights. These changes were attributed to adaptive responses. The oral administration of fib-CNF for 28 days resulted in no apparent toxic effects except for a slight decrease in platelet counts. The fib-CNF administration using the protocols studied appears to be safe in mice.
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Affiliation(s)
- Yoshihiro Yamashita
- Research Center for Fibers and Materials, University of Fukui, 3-9-1 Bunkyo, Fukui 910-8507, Japan;
| | - Akinori Tokunaga
- Life Science Research Laboratory, University of Fukui, 23-3, Matsuoka Shimoaizuki, Eiheiji-cho, Fukui 910-1193, Japan;
- Organization for Life Science Advancement Programs, University of Fukui, 3-9-1 Bunkyo, Fukui 910-8507, Japan; (K.A.); (T.I.); (H.U.); (H.S.); (S.F.)
| | - Koji Aoki
- Organization for Life Science Advancement Programs, University of Fukui, 3-9-1 Bunkyo, Fukui 910-8507, Japan; (K.A.); (T.I.); (H.U.); (H.S.); (S.F.)
- Department of Pharmacology, Faculty of Medicine, University of Fukui, 23-3, Matsuoka Shimoaizuki, Eiheiji-cho, Fukui 910-1193, Japan
| | - Tamotsu Ishizuka
- Organization for Life Science Advancement Programs, University of Fukui, 3-9-1 Bunkyo, Fukui 910-8507, Japan; (K.A.); (T.I.); (H.U.); (H.S.); (S.F.)
- Third Department of Internal Medicine, Faculty of Medicine, University of Fukui, 23-3, Matsuoka Shimoaizuki, Eiheiji-cho, Fukui 910-1193, Japan
| | - Hideyuki Uematsu
- Organization for Life Science Advancement Programs, University of Fukui, 3-9-1 Bunkyo, Fukui 910-8507, Japan; (K.A.); (T.I.); (H.U.); (H.S.); (S.F.)
- Department of Frontier Fiber Technology and Science, Graduate School of Engineering, University of Fukui, 3-9-1 Bunkyo, Fukui 910-8507, Japan
| | - Hiroaki Sakamoto
- Organization for Life Science Advancement Programs, University of Fukui, 3-9-1 Bunkyo, Fukui 910-8507, Japan; (K.A.); (T.I.); (H.U.); (H.S.); (S.F.)
- Department of Frontier Fiber Technology and Science, Graduate School of Engineering, University of Fukui, 3-9-1 Bunkyo, Fukui 910-8507, Japan
| | - Satoshi Fujita
- Organization for Life Science Advancement Programs, University of Fukui, 3-9-1 Bunkyo, Fukui 910-8507, Japan; (K.A.); (T.I.); (H.U.); (H.S.); (S.F.)
- Department of Frontier Fiber Technology and Science, Graduate School of Engineering, University of Fukui, 3-9-1 Bunkyo, Fukui 910-8507, Japan
| | - Shuichi Tanoue
- Research Center for Fibers and Materials, University of Fukui, 3-9-1 Bunkyo, Fukui 910-8507, Japan;
- Organization for Life Science Advancement Programs, University of Fukui, 3-9-1 Bunkyo, Fukui 910-8507, Japan; (K.A.); (T.I.); (H.U.); (H.S.); (S.F.)
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Ghilan A, Nicu R, Ciolacu DE, Ciolacu F. Insight into the Latest Medical Applications of Nanocellulose. MATERIALS (BASEL, SWITZERLAND) 2023; 16:4447. [PMID: 37374630 DOI: 10.3390/ma16124447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 06/14/2023] [Accepted: 06/15/2023] [Indexed: 06/29/2023]
Abstract
Nanocelluloses (NCs) are appealing nanomaterials that have experienced rapid development in recent years, with great potential in the biomedical field. This trend aligns with the increasing demand for sustainable materials, which will contribute both to an improvement in wellbeing and an extension of human life, and with the demand to keep up with advances in medical technology. In recent years, due to the diversity of their physical and biological properties and the possibility of tuning them according to the desired goal, these nanomaterials represent a point of maximum interest in the medical field. Applications such as tissue engineering, drug delivery, wound dressing, medical implants or those in cardiovascular health are some of the applications in which NCs have been successfully used. This review presents insight into the latest medical applications of NCs, in the forms of cellulose nanocrystals (CNCs), cellulose nanofibers (CNFs) and bacterial nanocellulose (BNC), with an emphasis on the domains that have recently experienced remarkable growth, namely wound dressing, tissue engineering and drug delivery. In order to highlight only the most recent achievements, the presented information is focused on studies from the last 3 years. Approaches to the preparation of NCs are discussed either by top-down (chemical or mechanical degradation) or by bottom-up (biosynthesis) techniques, along with their morphological characterization and unique properties, such as mechanical and biological properties. Finally, the main challenges, limitations and future research directions of NCs are identified in a sustained effort to identify their effective use in biomedical fields.
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Affiliation(s)
- Alina Ghilan
- Department of Natural Polymers, Bioactive and Biocompatible Materials, "Petru Poni" Institute of Macromolecular Chemistry, 700487 Iasi, Romania
| | - Raluca Nicu
- Department of Natural Polymers, Bioactive and Biocompatible Materials, "Petru Poni" Institute of Macromolecular Chemistry, 700487 Iasi, Romania
| | - Diana E Ciolacu
- Department of Natural Polymers, Bioactive and Biocompatible Materials, "Petru Poni" Institute of Macromolecular Chemistry, 700487 Iasi, Romania
| | - Florin Ciolacu
- Department of Natural and Synthetic Polymers, "Gheorghe Asachi" Technical University of Iasi, 700050 Iasi, Romania
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Erdem JS, Závodná T, Ervik TK, Skare Ø, Hron T, Anmarkrud KH, Kuśnierczyk A, Catalán J, Ellingsen DG, Topinka J, Zienolddiny-Narui S. High aspect ratio nanomaterial-induced macrophage polarization is mediated by changes in miRNA levels. Front Immunol 2023; 14:1111123. [PMID: 36776851 PMCID: PMC9911541 DOI: 10.3389/fimmu.2023.1111123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 01/16/2023] [Indexed: 01/28/2023] Open
Abstract
Introduction Inhalation of nanomaterials may induce inflammation in the lung which if left unresolved can manifest in pulmonary fibrosis. In these processes, alveolar macrophages have an essential role and timely modulation of the macrophage phenotype is imperative in the onset and resolution of inflammatory responses. This study aimed to investigate, the immunomodulating properties of two industrially relevant high aspect ratio nanomaterials, namely nanocellulose and multiwalled carbon nanotubes (MWCNT), in an alveolar macrophage model. Methods MH-S alveolar macrophages were exposed at air-liquid interface to cellulose nanocrystals (CNC), cellulose nanofibers (CNF) and two MWCNT (NM-400 and NM-401). Following exposure, changes in macrophage polarization markers and secretion of inflammatory cytokines were analyzed. Furthermore, the potential contribution of epigenetic regulation in nanomaterial-induced macrophage polarization was investigated by assessing changes in epigenetic regulatory enzymes, miRNAs, and rRNA modifications. Results Our data illustrate that the investigated nanomaterials trigger phenotypic changes in alveolar macrophages, where CNF exposure leads to enhanced M1 phenotype and MWCNT promotes M2 phenotype. Furthermore, MWCNT exposure induced more prominent epigenetic regulatory events with changes in the expression of histone modification and DNA methylation enzymes as well as in miRNA transcript levels. MWCNT-enhanced changes in the macrophage phenotype were correlated with prominent downregulation of the histone methyltransferases Kmt2a and Smyd5 and histone deacetylases Hdac4, Hdac9 and Sirt1 indicating that both histone methylation and acetylation events may be critical in the Th2 responses to MWCNT. Furthermore, MWCNT as well as CNF exposure led to altered miRNA levels, where miR-155-5p, miR-16-1-3p, miR-25-3p, and miR-27a-5p were significantly regulated by both materials. PANTHER pathway analysis of the identified miRNA targets showed that both materials affected growth factor (PDGF, EGF and FGF), Ras/MAPKs, CCKR, GnRH-R, integrin, and endothelin signaling pathways. These pathways are important in inflammation or in the activation, polarization, migration, and regulation of phagocytic capacity of macrophages. In addition, pathways involved in interleukin, WNT and TGFB signaling were highly enriched following MWCNT exposure. Conclusion Together, these data support the importance of macrophage phenotypic changes in the onset and resolution of inflammation and identify epigenetic patterns in macrophages which may be critical in nanomaterial-induced inflammation and fibrosis.
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Affiliation(s)
- Johanna Samulin Erdem
- National Institute of Occupational Health, Oslo, Norway,*Correspondence: Johanna Samulin Erdem,
| | - Táňa Závodná
- Department of Genetic Toxicology and Epigenetics, Institute of Experimental Medicine, the Czech Academy of Sciences, Prague, Czechia
| | | | - Øivind Skare
- National Institute of Occupational Health, Oslo, Norway
| | - Tomáš Hron
- Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, Prague, Czechia
| | | | - Anna Kuśnierczyk
- Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway,Proteomics and Modomics Experimental Core Facility and St. Olavs Hospital Central Staff, Trondheim, Norway
| | - Julia Catalán
- Department of Work Safety, Finnish Institute of Occupational Health, Helsinki, Finland,Department of Anatomy, Embryology and Genetics, University of Zaragoza, Zaragoza, Spain
| | | | - Jan Topinka
- Department of Genetic Toxicology and Epigenetics, Institute of Experimental Medicine, the Czech Academy of Sciences, Prague, Czechia
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Liu L, Zhang Y, Du Y, Li H, Wang M, Lv J. The therapeutic effect and targets of cellulose polysaccharide on coronary heart disease (CHD) and the construction of a prognostic signature based on network pharmacology. Front Nutr 2022; 9:986639. [PMID: 36299990 PMCID: PMC9592078 DOI: 10.3389/fnut.2022.986639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 09/15/2022] [Indexed: 11/13/2022] Open
Abstract
Cellulose is the first rich biological polysaccharide in nature and has many excellent properties, so it is being developed as a variety of drug carriers. Moreover, applications in drug delivery, biosensors/bioanalysis, immobilization of enzymes and cells, stem cell therapy, and skin tissue repair are also highlighted by many studies. Coronary heart disease, as one of the diseases with the highest incidence, is urgent to enhance the survival outcome and life quality of patients with coronary heart disease, whereas the mechanism of cellulose's interaction with the human body remains unclear. However, the mechanism of cellulose's interaction with the human body remains unclear. We obtained 92 genes associated with cellulose and coronary heart disease through the intersection of different databases. Ten key genes were identified: HRAS, STAT3, HSP90AA1, FGF2, VEGFA, CXCR4, TERT, IL2, BCL2L1, and CDK1. Molecular docking of the 10 genes revealed their association with their respective receptors. Analysis by KEGG and GO has discovered that these related targets were more enriched in metabolic- and activation-related functions, which further confirmed that cellulose polysaccharides can also interact with cardiovascular diseases as molecules. In the end, we screened out six key genes that were more associated with the prognosis (CDK1, HSP90AA1, CXCR4, IL2, VEGFA, and TERT) and constructed a signature, which has a good predictive effect and has significant statistical significance. Our study is the first study to explore the interaction targets of cellulose and CHD and to construct a prognostic model. Our findings provide insights for future molecular design, drug development, and clinical trials.
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Affiliation(s)
- Lang Liu
- Department of Cardiology, General Hospital of Ningxia Medical University, Yinchuan, China
| | - Yundi Zhang
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yuxin Du
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital Fudan University, Shanghai, China
| | - Haoyue Li
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Mingzhao Wang
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jianfeng Lv
- Department of Cardiology, Affiliated RenHe Hospital of China, Second Clinical Medical College, Three Gorges University, Yichang, China,*Correspondence: Jianfeng Lv
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7
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Polysaccharides-based nanofibrils: From tissue engineering to biosensor applications. Carbohydr Polym 2022; 291:119670. [DOI: 10.1016/j.carbpol.2022.119670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 05/24/2022] [Accepted: 05/25/2022] [Indexed: 11/22/2022]
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Aimonen K, Hartikainen M, Imani M, Suhonen S, Vales G, Moreno C, Saarelainen H, Siivola K, Vanhala E, Wolff H, Rojas OJ, Norppa H, Catalán J. Effect of Surface Modification on the Pulmonary and Systemic Toxicity of Cellulose Nanofibrils. Biomacromolecules 2022; 23:2752-2766. [PMID: 35680128 DOI: 10.1021/acs.biomac.2c00072] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Cellulose nanofibrils (CNFs) have emerged as sustainable options for a wide range of applications. However, the high aspect ratio and biopersistence of CNFs raise concerns about potential health effects. Here, we evaluated the in vivo pulmonary and systemic toxicity of unmodified (U-CNF), carboxymethylated (C-CNF), and TEMPO (2,2,6,6-tetramethyl-piperidin-1-oxyl)-oxidized (T-CNF) CNFs, fibrillated in the same way and administered to mice by repeated (3×) pharyngeal aspiration (14, 28, and 56 μg/mouse/aspiration). Toxic effects were assessed up to 90 days after the last administration. Some mice were treated with T-CNF samples spiked with lipopolysaccharide (LPS; 0.02-50 ng/mouse/aspiration) to assess the role of endotoxin contamination. The CNFs induced an acute inflammatory reaction that subsided within 90 days, except for T-CNF. At 90 days post-administration, an increased DNA damage was observed in bronchoalveolar lavage and hepatic cells after exposure to T-CNF and C-CNF, respectively. Besides, LPS contamination dose-dependently increased the hepatic genotoxic effects of T-CNF.
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Affiliation(s)
- Kukka Aimonen
- Finnish Institute of Occupational Health, P.O. Box 40, 00032 Helsinki, Finland
| | - Mira Hartikainen
- Finnish Institute of Occupational Health, P.O. Box 40, 00032 Helsinki, Finland
| | - Monireh Imani
- Department of Bioproducts and Biosystems, Aalto University, 02150 Espoo, Finland
| | - Satu Suhonen
- Finnish Institute of Occupational Health, P.O. Box 40, 00032 Helsinki, Finland
| | - Gerard Vales
- Finnish Institute of Occupational Health, P.O. Box 40, 00032 Helsinki, Finland
| | - Carlos Moreno
- Department of Anatomy, Embryology and Genetics, University of Zaragoza, 50013 Zaragoza, Spain
| | - Hanna Saarelainen
- Finnish Institute of Occupational Health, P.O. Box 40, 00032 Helsinki, Finland
| | - Kirsi Siivola
- Finnish Institute of Occupational Health, P.O. Box 40, 00032 Helsinki, Finland
| | - Esa Vanhala
- Finnish Institute of Occupational Health, P.O. Box 40, 00032 Helsinki, Finland
| | - Henrik Wolff
- Finnish Institute of Occupational Health, P.O. Box 40, 00032 Helsinki, Finland
| | - Orlando J Rojas
- Department of Bioproducts and Biosystems, Aalto University, 02150 Espoo, Finland.,Bioproducts Institute, Department of Chemical and Biological Engineering, Department of Chemistry and Department of Wood Science, The University of British Columbia, Vancouver BC V6T 1Z3, Canada
| | - Hannu Norppa
- Finnish Institute of Occupational Health, P.O. Box 40, 00032 Helsinki, Finland
| | - Julia Catalán
- Finnish Institute of Occupational Health, P.O. Box 40, 00032 Helsinki, Finland.,Department of Anatomy, Embryology and Genetics, University of Zaragoza, 50013 Zaragoza, Spain
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Chinga-Carrasco G, Rosendahl J, Catalán J. Nanocelluloses - Nanotoxicology, Safety Aspects and 3D Bioprinting. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1357:155-177. [PMID: 35583644 DOI: 10.1007/978-3-030-88071-2_7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Nanocelluloses have good rheological properties that facilitate the extrusion of nanocellulose gels in micro-extrusion systems. It is considered a highly relevant characteristic that makes it possible to use nanocellulose as an ink component for 3D bioprinting purposes. The nanocelluloses assessed in this book chapter include wood nanocellulose (WNC), bacterial nanocellulose (BNC), and tunicate nanocellulose (TNC), which are often assumed to be non-toxic. Depending on various chemical and mechanical processes, both cellulose nanofibrils (CNF) and cellulose nanocrystals (CNC) can be obtained from the three mentioned nanocelluloses (WNC, BNC, and TNC). Pre/post-treatment processes (chemical and mechanical) cause modifications regarding surface chemistry and nano-morphology. Hence, it is essential to understand whether physicochemical properties may affect the toxicological profile of nanocelluloses. In this book chapter, we provide an overview of nanotoxicology and safety aspects associated with nanocelluloses. Relevant regulatory requirements are considered. We also discuss hazard assessment strategies based on tiered approaches for safety testing, which can be applied in the early stages of the innovation process. Ensuring the safe development of nanocellulose-based 3D bioprinting products will enable full market use of these sustainable resources throughout their life cycle.
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Affiliation(s)
| | - Jennifer Rosendahl
- RISE, Division Materials and Production, Department Chemistry, Biomaterials and Textiles, Section Biological Function, Borås, Sweden
| | - Julia Catalán
- Occupational Safety, Finnish Institute of Occupational Health, Helsinki, Finland
- Department of Anatomy, Embryology and Genetics, University of Zaragoza, Zaragoza, Spain
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10
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Analysis of the In Vitro Toxicity of Nanocelluloses in Human Lung Cells as Compared to Multi-Walled Carbon Nanotubes. NANOMATERIALS 2022; 12:nano12091432. [PMID: 35564141 PMCID: PMC9104944 DOI: 10.3390/nano12091432] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 04/18/2022] [Accepted: 04/20/2022] [Indexed: 11/16/2022]
Abstract
Cellulose micro/nanomaterials (CMNM), comprising cellulose microfibrils (CMF), nanofibrils (CNF), and nanocrystals (CNC), are being recognized as promising bio-nanomaterials due to their natural and renewable source, attractive properties, and potential for applications with industrial and economical value. Thus, it is crucial to investigate their potential toxicity before starting their production at a larger scale. The present study aimed at evaluating the cell internalization and in vitro cytotoxicity and genotoxicity of CMNM as compared to two multi-walled carbon nanotubes (MWCNT), NM-401 and NM-402, in A549 cells. The exposure to all studied NM, with the exception of CNC, resulted in evident cellular uptake, as analyzed by transmission electron microscopy. However, none of the CMNM induced cytotoxic effects, in contrast to the cytotoxicity observed for the MWCNT. Furthermore, no genotoxicity was observed for CNF, CNC, and NM-402 (cytokinesis-block micronucleus assay), while CMF and NM-401 were able to significantly raise micronucleus frequency. Only NM-402 was able to induce ROS formation, although it did not induce micronuclei. Thus, it is unlikely that the observed CMF and NM-401 genotoxicity is mediated by oxidative DNA damage. More studies targeting other genotoxicity endpoints and cellular and molecular events are underway to allow for a more comprehensive safety assessment of these nanocelluloses.
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Wieland S, Balmes A, Bender J, Kitzinger J, Meyer F, Ramsperger AF, Roeder F, Tengelmann C, Wimmer BH, Laforsch C, Kress H. From properties to toxicity: Comparing microplastics to other airborne microparticles. JOURNAL OF HAZARDOUS MATERIALS 2022; 428:128151. [PMID: 35042167 DOI: 10.1016/j.jhazmat.2021.128151] [Citation(s) in RCA: 53] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 12/22/2021] [Accepted: 12/23/2021] [Indexed: 06/14/2023]
Abstract
Microplastic (MP) debris is considered as a potentially hazardous material. It is omnipresent in our environment, and evidence that MP is also abundant in the atmosphere is increasing. Consequently, the inhalation of these particles is a significant exposure route to humans. Concerns about potential effects of airborne MP on human health are rising. However, currently, there are not enough studies on the putative toxicity of airborne MP to adequately assess its impact on human health. Therefore, we examined potential drivers of airborne MP toxicity. Physicochemical properties like size, shape, ζ-potential, adsorbed molecules and pathogens, and the MP's bio-persistence have been proposed as possible drivers of MP toxicity. Since their role in MP toxicity is largely unknown, we reviewed the literature on toxicologically well-studied non-plastic airborne microparticles (asbestos, silica, soot, wood, cotton, hay). We aimed to link the observed health effects and toxicology of these microparticles to the abovementioned properties. By comparing this information with studies on the effects of airborne MP, we analyzed possible mechanisms of airborne MP toxicity. Thus, we provide a basis for a mechanistic understanding of airborne MP toxicity. This may enable the assessment of risks associated with airborne MP pollution, facilitating effective policymaking and product design.
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Affiliation(s)
- Simon Wieland
- Biological Physics, University of Bayreuth, Bayreuth, Germany; Animal Ecology I and BayCEER, University of Bayreuth, Bayreuth, Germany
| | - Aylin Balmes
- Institute of Applied Physics, University of Tübingen, Tübingen, Germany
| | - Julian Bender
- Institute for Biochemistry and Biotechnology, Interdisciplinary Research Center HALOmem, Martin Luther University Halle-Wittenberg, Halle, Germany
| | - Jonas Kitzinger
- Department of Physics, Humboldt University of Berlin, Berlin, Germany
| | - Felix Meyer
- Institute of Clinical Microbiology and Hygiene, University Hospital Regensburg, Regensburg, Germany
| | - Anja Frm Ramsperger
- Biological Physics, University of Bayreuth, Bayreuth, Germany; Animal Ecology I and BayCEER, University of Bayreuth, Bayreuth, Germany
| | - Franz Roeder
- Institute of Optics and Quantum Electronics, Friedrich-Schiller-University Jena, Jena, Germany
| | - Caroline Tengelmann
- Medical Faculty, University of Würzburg, Würzburg, Germany; Department of Anesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital of Würzburg, Würzburg, Germany
| | | | - Christian Laforsch
- Animal Ecology I and BayCEER, University of Bayreuth, Bayreuth, Germany.
| | - Holger Kress
- Biological Physics, University of Bayreuth, Bayreuth, Germany.
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12
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Aimonen K, Imani M, Hartikainen M, Suhonen S, Vanhala E, Moreno C, Rojas OJ, Norppa H, Catalán J. Surface functionalization and size modulate the formation of reactive oxygen species and genotoxic effects of cellulose nanofibrils. Part Fibre Toxicol 2022; 19:19. [PMID: 35296350 PMCID: PMC8925132 DOI: 10.1186/s12989-022-00460-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 03/02/2022] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Cellulose nanofibrils (CNFs) have emerged as a sustainable and environmentally friendly option for a broad range of applications. The fibrous nature and high biopersistence of CNFs call for a thorough toxicity assessment, but it is presently unclear which physico-chemical properties could play a role in determining the potential toxic response to CNF. Here, we assessed whether surface composition and size could modulate the genotoxicity of CNFs in human bronchial epithelial BEAS-2B cells. We examined three size fractions (fine, medium and coarse) of four CNFs with different surface chemistry: unmodified (U-CNF) and functionalized with 2,2,6,6-tetramethyl-piperidin-1-oxyl (TEMPO) (T-CNF), carboxymethyl (C-CNF) and epoxypropyltrimethylammonium chloride (EPTMAC) (E-CNF). In addition, the source fibre was also evaluated as a non-nanosized material. RESULTS The presence of the surface charged groups in the functionalized CNF samples resulted in higher amounts of individual nanofibrils and less aggregation compared with the U-CNF. T-CNF was the most homogenous, in agreement with its high surface group density. However, the colloidal stability of all the CNF samples dropped when dispersed in cell culture medium, especially in the case of T-CNF. CNF was internalized by a minority of BEAS-2B cells. No remarkable cytotoxic effects were induced by any of the cellulosic materials. All cellulosic materials, except the medium fraction of U-CNF, induced a dose-dependent intracellular formation of reactive oxygen species (ROS). The fine fraction of E-CNF, which induced DNA damage (measured by the comet assay) and chromosome damage (measured by the micronucleus assay), and the coarse fraction of C-CNF, which produced chromosome damage, also showed the most effective induction of ROS in their respective size fractions. CONCLUSIONS Surface chemistry and size modulate the in vitro intracellular ROS formation and the induction of genotoxic effects by fibrillated celluloses. One cationic (fine E-CNF) and one anionic (coarse C-CNF) CNF showed primary genotoxic effects, possibly partly through ROS generation. However, the conclusions cannot be generalized to all types of CNFs, as the synthesis process and the dispersion method used for testing affect their physico-chemical properties and, hence, their toxic effects.
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Affiliation(s)
- Kukka Aimonen
- Finnish Institute of Occupational Health, Työterveyslaitos, Box 40, 00032, Helsinki, Finland
| | - Monireh Imani
- Department of Bioproducts and Biosystems, Aalto University, Espoo, Finland
| | - Mira Hartikainen
- Finnish Institute of Occupational Health, Työterveyslaitos, Box 40, 00032, Helsinki, Finland
| | - Satu Suhonen
- Finnish Institute of Occupational Health, Työterveyslaitos, Box 40, 00032, Helsinki, Finland
| | - Esa Vanhala
- Finnish Institute of Occupational Health, Työterveyslaitos, Box 40, 00032, Helsinki, Finland
| | - Carlos Moreno
- Department of Anatomy, Embryology and Genetics, University of Zaragoza, Zaragoza, Spain
| | - Orlando J Rojas
- Department of Bioproducts and Biosystems, Aalto University, Espoo, Finland.,Bioproducts Institute, Departments of Chemical and Biological Engineering, Chemistry and Wood Science, The University of British Columbia, Vancouver, BC, Canada
| | - Hannu Norppa
- Finnish Institute of Occupational Health, Työterveyslaitos, Box 40, 00032, Helsinki, Finland
| | - Julia Catalán
- Finnish Institute of Occupational Health, Työterveyslaitos, Box 40, 00032, Helsinki, Finland. .,Department of Anatomy, Embryology and Genetics, University of Zaragoza, Zaragoza, Spain.
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13
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Nicu R, Ciolacu F, Ciolacu DE. Advanced Functional Materials Based on Nanocellulose for Pharmaceutical/Medical Applications. Pharmaceutics 2021; 13:1125. [PMID: 34452086 PMCID: PMC8399340 DOI: 10.3390/pharmaceutics13081125] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 07/09/2021] [Accepted: 07/19/2021] [Indexed: 12/13/2022] Open
Abstract
Nanocelluloses (NCs), with their remarkable characteristics, have proven to be one of the most promising "green" materials of our times and have received special attention from researchers in nanomaterials. A diversity of new functional materials with a wide range of biomedical applications has been designed based on the most desirable properties of NCs, such as biocompatibility, biodegradability, and their special physicochemical properties. In this context and under the pressure of rapid development of this field, it is imperative to synthesize the successes and the new requirements in a comprehensive review. The first part of this work provides a brief review of the characteristics of the NCs (cellulose nanocrystals-CNC, cellulose nanofibrils-CNF, and bacterial nanocellulose-BNC), as well as of the main functional materials based on NCs (hydrogels, nanogels, and nanocomposites). The second part presents an extensive review of research over the past five years on promising pharmaceutical and medical applications of nanocellulose-based materials, which have been discussed in three important areas: drug-delivery systems, materials for wound-healing applications, as well as tissue engineering. Finally, an in-depth assessment of the in vitro and in vivo cytotoxicity of NCs-based materials, as well as the challenges related to their biodegradability, is performed.
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Affiliation(s)
- Raluca Nicu
- Department of Natural Polymers, Bioactive and Biocompatible Materials, “Petru Poni” Institute of Macromolecular Chemistry, 700487 Iasi, Romania;
| | - Florin Ciolacu
- Department of Natural and Synthetic Polymers, “Gheorghe Asachi” Technical University of Iasi, 700050 Iasi, Romania
| | - Diana E. Ciolacu
- Department of Natural Polymers, Bioactive and Biocompatible Materials, “Petru Poni” Institute of Macromolecular Chemistry, 700487 Iasi, Romania;
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14
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Aimonen K, Suhonen S, Hartikainen M, Lopes VR, Norppa H, Ferraz N, Catalán J. Role of Surface Chemistry in the In Vitro Lung Response to Nanofibrillated Cellulose. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:389. [PMID: 33546402 PMCID: PMC7913598 DOI: 10.3390/nano11020389] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 01/29/2021] [Accepted: 01/30/2021] [Indexed: 12/18/2022]
Abstract
Wood-derived nanofibrillated cellulose (NFC) has emerged as a sustainable material with a wide range of applications and increasing presence in the market. Surface charges are introduced during the preparation of NFC to facilitate the defibrillation process, which may also alter the toxicological properties of NFC. In the present study, we examined the in vitro toxicity of NFCs with five surface chemistries: nonfunctionalized, carboxymethylated, phosphorylated, sulfoethylated, and hydroxypropyltrimethylammonium-substituted. The NFC samples were characterized for surface functional group density, surface charge, and fiber morphology. Fibril aggregates predominated in the nonfunctionalized NFC, while individual nanofibrils were observed in the functionalized NFCs. Differences in surface group density among the functionalized NFCs were reflected in the fiber thickness of these samples. In human bronchial epithelial (BEAS-2B) cells, all NFCs showed low cytotoxicity (CellTiter-GloVR luminescent cell viability assay) which never exceeded 10% at any exposure time. None of the NFCs induced genotoxic effects, as evaluated by the alkaline comet assay and the cytokinesis-block micronucleus assay. The nonfunctionalized and carboxymethylated NFCs were able to increase intracellular reactive oxygen species (ROS) formation (chloromethyl derivative of 2',7'-dichlorodihydrofluorescein diacetate assay). However, ROS induction did not result in increased DNA or chromosome damage.
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Affiliation(s)
- Kukka Aimonen
- Finnish Institute of Occupational Health, Box 40, Työterveyslaitos, 00032 Helsinki, Finland; (K.A.); (S.S.); (M.H.); (H.N.)
| | - Satu Suhonen
- Finnish Institute of Occupational Health, Box 40, Työterveyslaitos, 00032 Helsinki, Finland; (K.A.); (S.S.); (M.H.); (H.N.)
| | - Mira Hartikainen
- Finnish Institute of Occupational Health, Box 40, Työterveyslaitos, 00032 Helsinki, Finland; (K.A.); (S.S.); (M.H.); (H.N.)
| | - Viviana R. Lopes
- Nanotechnology and Functional Materials, Department of Materials Science and Engineering, Uppsala University, Box 35, 751 03 Uppsala, Sweden; (V.R.L.); (N.F.)
| | - Hannu Norppa
- Finnish Institute of Occupational Health, Box 40, Työterveyslaitos, 00032 Helsinki, Finland; (K.A.); (S.S.); (M.H.); (H.N.)
| | - Natalia Ferraz
- Nanotechnology and Functional Materials, Department of Materials Science and Engineering, Uppsala University, Box 35, 751 03 Uppsala, Sweden; (V.R.L.); (N.F.)
| | - Julia Catalán
- Finnish Institute of Occupational Health, Box 40, Työterveyslaitos, 00032 Helsinki, Finland; (K.A.); (S.S.); (M.H.); (H.N.)
- Department of Anatomy, Embryology and Genetics, University of Zaragoza, 50013 Zaragoza, Spain
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15
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Song LY, Wu YZ, Pei XX, Li R, Chen HT, Sun XZ. Pulmonary toxicity and RNA sequencing analyses of mouse in response to exposure to cellulose nanofibrils. Inhal Toxicol 2020; 32:388-401. [PMID: 33043732 DOI: 10.1080/08958378.2020.1831112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVE The growing applications of nanocelluloses in the fields of advanced nanocomposites, electronics, and medical devices necessitate investigation of their potential adverse effects on human health. The lungs are the primary and the most important route for the entry of nanocelluloses into the human body in occupational settings. However, data on the pulmonary toxicity of cellulose nanofibrils (CNFs) and its molecular mechanism are limited. This study investigated the pulmonary toxicity of CNFs and its genomic expression using the RNA sequencing approach. MATERIALS AND METHODS Female C57BL/6 mice were administered CNFs at 50 μg/mouse by oropharyngeal aspiration. Samples were collected at 3 and 14 days after exposure to CNFs (DAEC). RESULTS At three DAEC, the microscopic sections of lungs revealed a significant inflammatory response. In terms of gene expression alterations, 94 genes were up-regulated, and 107 genes were down-regulated. Most of these differentially expressed genes were involved in the inflammatory and immune responses, including chemokines, NK cells, killer cell lectin-like receptors, CD antigens, T cell-specific GTPases, immunity-related GTPase family M members, and interferon-induced proteins encoding genes. However, only 9 and 26 genes at 14 DAEC were significantly up- and down-regulated, respectively. CONCLUSIONS The pathological analysis of lung sections and the analysis of sequencing data suggested that the homeostasis of mice lungs was restored at 14 DAEC. The findings of this study provide insights into the pulmonary toxicity, and underlying toxicological mechanisms, caused by exposure to CNFs, and are useful for the assessment of the potential toxicity of nanocelluloses.
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Affiliation(s)
- Li-Ying Song
- College of Engineering, Northeast Agricultural University, Harbin, China
| | - Yun-Zhou Wu
- College of Life Science, Northeast Agricultural University, Harbin, China
| | - Xi-Xiang Pei
- Harbin Botai Biological Technology Co., Ltd, Harbin, China
| | - Rui Li
- College of Engineering, Northeast Agricultural University, Harbin, China
| | - Hai-Tao Chen
- College of Engineering, Northeast Agricultural University, Harbin, China
| | - Xiao-Zheng Sun
- College of Engineering, Northeast Agricultural University, Harbin, China
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16
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Biomass-derived cellulose nanoparticles display considerable neurotoxicity in zebrafish. Int J Biol Macromol 2020; 165:1783-1792. [PMID: 33045296 DOI: 10.1016/j.ijbiomac.2020.10.033] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 09/30/2020] [Accepted: 10/05/2020] [Indexed: 11/24/2022]
Abstract
The widespread use of nanomaterials poses a great threat to human living environments. Among them, biomass-derived cellulose nanoparticle (CN) is one of the widely used nanomaterials. To date, the toxicity of CNs during embryonic development remains undetermined. In this study, we exposed zebrafish embryos to cellulose nanofibrils (CNFs) and cellulose nanocrystals (CNCs) to evaluate the toxicity of these CNs. Exposure to CNFs or CNCs below 30 mg/ml exhibited no dose-dependent increases in malformation and mortality in zebrafish embryos. Then we demonstrated that CNs were highly enriched in zebrafish embryo via imaging analyses of embryos treated with FITC-coupled CNCs. In addition, we found that CNF or CNC exposure resulted in compromised motor ability of zebrafish larva. Furthermore, it was revealed that the differentiation and the morphogenesis of motor neurons were significantly interrupted. While, blood vessels were normally patterned, suggesting the specific neurotoxicity of these nanomaterials. Transcriptome sequencing assay showed that the neurotoxicity of CNs in the motor neurons might be attributed to the expression alteration of neural genes. In summary, we discovered the neurotoxicity of CNs for the first time.
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17
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Stoudmann N, Schmutz M, Hirsch C, Nowack B, Som C. Human hazard potential of nanocellulose: quantitative insights from the literature. Nanotoxicology 2020; 14:1241-1257. [DOI: 10.1080/17435390.2020.1814440] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Natasha Stoudmann
- Technology and Society, Swiss Federal Laboratories for Materials Science and Technology (Empa), St.Gallen, Switzerland
| | - Mélanie Schmutz
- Technology and Society, Swiss Federal Laboratories for Materials Science and Technology (Empa), St.Gallen, Switzerland
| | - Cordula Hirsch
- Particles-Biology Interations, Swiss Federal Laboratories for Materials Science and Technology (Empa), St.Gallen, Switzerland
| | - Bernd Nowack
- Technology and Society, Swiss Federal Laboratories for Materials Science and Technology (Empa), St.Gallen, Switzerland
| | - Claudia Som
- Technology and Society, Swiss Federal Laboratories for Materials Science and Technology (Empa), St.Gallen, Switzerland
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18
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Affiliation(s)
- Takafumi Sai
- Innovation Promotion Division, Oji Holdings Corporation, Tokyo, Japan
| | - Katsuhide Fujita
- Research Institute of Science and Sustainability (RISS), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan
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19
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Chen Y, Lin YJ, Nagy T, Kong F, Guo TL. Subchronic exposure to cellulose nanofibrils induces nutritional risk by non-specifically reducing the intestinal absorption. Carbohydr Polym 2019; 229:115536. [PMID: 31826413 DOI: 10.1016/j.carbpol.2019.115536] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 10/23/2019] [Accepted: 10/25/2019] [Indexed: 12/20/2022]
Abstract
Previous studies of cellulose nanofibrils (CNF) in decreasing fat absorption and glucose release suggested their potential application as food additives or supplements in diets containing high contents of fat and sugars. However, the long-term effects of CNF uptake remained unknown. The purpose of this study was to determine the effects of subchronic oral CNF consumption on various health aspects of Western diets (WD)-fed mice. The results demonstrated that CNF decreased fat absorption in the jejunum and attenuated WD-induced fatty liver, but slightly decreased lean body mass and affected glucose homeostasis. Additional in vivo studies showed that CNF decreased the intestinal absorption. The in vitro studies suggested that CNF did not decrease the viability of any cells used; however, they prevented epithelial and T cells, but not macrophages, from accessing the viability dye. Taken together, CNF decreased the intestinal absorption non-specifically, which might lead to nutritional risks after long-term exposure.
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Affiliation(s)
- Yingjia Chen
- Department of Veterinary Biosciences and Diagnostic Imaging, College of Veterinary Medicine, University of Georgia, Athens, GA, USA.
| | - Yu-Ju Lin
- Department of Food Science and Technology, University of Georgia, Athens, GA, USA.
| | - Tamas Nagy
- Department of Pathology, College of Veterinary Medicine, University of Georgia, Athens, GA, USA.
| | - Fanbin Kong
- Department of Food Science and Technology, University of Georgia, Athens, GA, USA.
| | - Tai L Guo
- Department of Veterinary Biosciences and Diagnostic Imaging, College of Veterinary Medicine, University of Georgia, Athens, GA, USA.
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20
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Mishra PK, Ekielski A, Mukherjee S, Sahu S, Chowdhury S, Mishra M, Talegaonkar S, Siddiqui L, Mishra H. Wood-Based Cellulose Nanofibrils: Haemocompatibility and Impact on the Development and Behaviour of Drosophila melanogaster. Biomolecules 2019; 9:biom9080363. [PMID: 31412664 PMCID: PMC6722666 DOI: 10.3390/biom9080363] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 08/02/2019] [Accepted: 08/06/2019] [Indexed: 02/06/2023] Open
Abstract
Wood-based cellulose nanofibrils (CNF) offer an excellent scaffold for drug-delivery formulation development. However, toxicity and haemocompatibility of the drug carrier is always an important issue. In this study, toxicity-related issues of CNF were addressed. Different doses of CNF were orally administered to Drosophila and different tests like the developmental cycle, trypan blue exclusion assay, larva crawling assay, thermal sensitivity assay, cold sensitivity assay, larval light preference test, climbing behaviour, nitroblue tetrazolium (NBT) reduction assay, adult phenotype, and adult weight were conducted to observe the impact on its development and behaviour. A haemocompatibility assay was done on the blood taken from healthy Wistar rats. In Drosophila, the abnormalities in larval development and behaviour were observed in the behavioural assays. However, the cytotoxic effect could not be confirmed by the gut staining and level of reactive oxygen species. The larvae developed into an adult without any abnormality in the phenotype. The CNF did cause loss of weight in the adult flies and did not cause much toxicity within the body since there was no phenotypic defect. Hemolysis data also suggested that CNF was safe at lower doses, as the data was well within acceptable limits. All these results suggest that cellulose nanofibres have no significant cytotoxic effects on Drosophila. However, the developmental and behavioural abnormalities suggest that CNF may act as a behavioural teratogen.
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Affiliation(s)
- Pawan Kumar Mishra
- Department of Wood Processing Technology, Mendel University in Brno, 61300 Brno, Czech Republic.
| | - Adam Ekielski
- Department of Production Management and Engineering, Warsaw University of Life Sciences, 02-787 Warsaw, Poland
| | - Sumit Mukherjee
- Neural Developmental Biology Lab, Department of Life Science, National Institute of Technology, Rourkela, Odisha 76908, India
| | - Swetapadma Sahu
- Neural Developmental Biology Lab, Department of Life Science, National Institute of Technology, Rourkela, Odisha 76908, India
| | - Saptarshi Chowdhury
- Biotechnology Department, Heritage Institute of Technology, Kolkata 700107, West Bengal, India
| | - Monalisa Mishra
- Neural Developmental Biology Lab, Department of Life Science, National Institute of Technology, Rourkela, Odisha 76908, India
| | - Sushama Talegaonkar
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India
| | - Lubna Siddiqui
- Department of Pharmaceutics, Delhi Pharmaceutical Sciences and Research University, Govt. of NCT of Delhi 110017, New Delhi, India
| | - Harshita Mishra
- Department of Pharmaceutics, Delhi Pharmaceutical Sciences and Research University, Govt. of NCT of Delhi 110017, New Delhi, India
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21
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Bendtsen KM, Brostrøm A, Koivisto AJ, Koponen I, Berthing T, Bertram N, Kling KI, Dal Maso M, Kangasniemi O, Poikkimäki M, Loeschner K, Clausen PA, Wolff H, Jensen KA, Saber AT, Vogel U. Airport emission particles: exposure characterization and toxicity following intratracheal instillation in mice. Part Fibre Toxicol 2019; 16:23. [PMID: 31182125 PMCID: PMC6558896 DOI: 10.1186/s12989-019-0305-5] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 05/16/2019] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Little is known about the exposure levels and adverse health effects of occupational exposure to airplane emissions. Diesel exhaust particles are classified as carcinogenic to humans and jet engines produce potentially similar soot particles. Here, we evaluated the potential occupational exposure risk by analyzing particles from a non-commercial airfield and from the apron of a commercial airport. Toxicity of the collected particles was evaluated alongside NIST standard reference diesel exhaust particles (NIST2975) in terms of acute phase response, pulmonary inflammation, and genotoxicity after single intratracheal instillation in mice. RESULTS Particle exposure levels were up to 1 mg/m3 at the non-commercial airfield. Particulate matter from the non-commercial airfield air consisted of primary and aggregated soot particles, whereas commercial airport sampling resulted in a more heterogeneous mixture of organic compounds including salt, pollen and soot, reflecting the complex occupational exposure at an apron. The particle contents of polycyclic aromatic hydrocarbons and metals were similar to the content in NIST2975. Mice were exposed to doses 6, 18 and 54 μg alongside carbon black (Printex 90) and NIST2975 and euthanized after 1, 28 or 90 days. Dose-dependent increases in total number of cells, neutrophils, and eosinophils in bronchoalveolar lavage fluid were observed on day 1 post-exposure for all particles. Lymphocytes were increased for all four particle types on 28 days post-exposure as well as for neutrophil influx for jet engine particles and carbon black nanoparticles. Increased Saa3 mRNA levels in lung tissue and increased SAA3 protein levels in plasma were observed on day 1 post-exposure. Increased levels of DNA strand breaks in bronchoalveolar lavage cells and liver tissue were observed for both particles, at single dose levels across doses and time points. CONCLUSIONS Pulmonary exposure of mice to particles collected at two airports induced acute phase response, inflammation, and genotoxicity similar to standard diesel exhaust particles and carbon black nanoparticles, suggesting similar physicochemical properties and toxicity of jet engine particles and diesel exhaust particles. Given this resemblance as well as the dose-response relationship between diesel exhaust exposure and lung cancer, occupational exposure to jet engine emissions at the two airports should be minimized.
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Affiliation(s)
- Katja Maria Bendtsen
- National Research Centre for the Working Environment, Lersø Parkallé 105, DK-2100 Copenhagen, Denmark
| | - Anders Brostrøm
- National Research Centre for the Working Environment, Lersø Parkallé 105, DK-2100 Copenhagen, Denmark
- National Centre for Nano Fabrication and Characterization, Technical University of Denmark, Fysikvej, Building 307, DK-2800 Kgs Lyngby, Denmark
| | - Antti Joonas Koivisto
- National Research Centre for the Working Environment, Lersø Parkallé 105, DK-2100 Copenhagen, Denmark
| | - Ismo Koponen
- National Research Centre for the Working Environment, Lersø Parkallé 105, DK-2100 Copenhagen, Denmark
- FORCE Technology, Park Allé 345, 2605 Brøndby, Denmark
| | - Trine Berthing
- National Research Centre for the Working Environment, Lersø Parkallé 105, DK-2100 Copenhagen, Denmark
| | - Nicolas Bertram
- National Research Centre for the Working Environment, Lersø Parkallé 105, DK-2100 Copenhagen, Denmark
| | - Kirsten Inga Kling
- National Centre for Nano Fabrication and Characterization, Technical University of Denmark, Fysikvej, Building 307, DK-2800 Kgs Lyngby, Denmark
| | - Miikka Dal Maso
- Aerosol Physics, Laboratory of Physics, Faculty of Natural Sciences, Tampere University of Technology, PO Box 527, FI-33101 Tampere, Finland
| | - Oskari Kangasniemi
- Aerosol Physics, Laboratory of Physics, Faculty of Natural Sciences, Tampere University of Technology, PO Box 527, FI-33101 Tampere, Finland
| | - Mikko Poikkimäki
- Aerosol Physics, Laboratory of Physics, Faculty of Natural Sciences, Tampere University of Technology, PO Box 527, FI-33101 Tampere, Finland
| | - Katrin Loeschner
- National Food Institute, Research Group for Nano-Bio Science, Technical University of Denmark, Kemitorvet 201, DK-2800 Kgs Lyngby, Denmark
| | - Per Axel Clausen
- National Research Centre for the Working Environment, Lersø Parkallé 105, DK-2100 Copenhagen, Denmark
| | - Henrik Wolff
- Finnish Institute of Occupational Health, P.O. Box 40, FI-00032, Työterveyslaitos, Helsinki, Finland
| | - Keld Alstrup Jensen
- National Research Centre for the Working Environment, Lersø Parkallé 105, DK-2100 Copenhagen, Denmark
| | - Anne Thoustrup Saber
- National Research Centre for the Working Environment, Lersø Parkallé 105, DK-2100 Copenhagen, Denmark
| | - Ulla Vogel
- National Research Centre for the Working Environment, Lersø Parkallé 105, DK-2100 Copenhagen, Denmark
- Department of Health Technology, Technical University of Denmark, DK-2800 Kgs Lyngby, Denmark
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22
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Salari M, Bitounis D, Bhattacharya K, Pyrgiotakis G, Zhang Z, Purington E, Gramlich W, Grondin Y, Rogers R, Bousfield D, Demokritou P. Development & Characterization of Fluorescently Tagged Nanocellulose for Nanotoxicological Studies. ENVIRONMENTAL SCIENCE. NANO 2019; 6:1516-1526. [PMID: 31844523 PMCID: PMC6914317 DOI: 10.1039/c8en01381k] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
The rapid adoption of nanocellulose-based engineered nanomaterials (CNM) by many industries generates environmental health and safety (EHS) concerns. This work presents the development of fluorescently tagged CNM which can be used to study their interactions with biological systems. Specifically, cellulose nano-fibrils and cellulose nano-crystals with covalently attached fluorescein isothiocyanate (FITC) molecules on their surface were synthesized. The fluorescence of the FITC-tagged materials was assessed along with potential FITC detachment under pH conditions encountered in the human gastrointestinal tract, in intracellular compartments, and in cell culture media. Finally, the potential cytotoxicity due to the presence of FITC molecules on the surface of CNM was assessed using a cellular gut epithelium model. The results showed that neither FITC-CNF nor FITC-CNC were cytotoxic and that they have a comparable bioactivity to their untagged counterparts, rendering them suitable for biological studies.
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Affiliation(s)
- Maryam Salari
- Center for Nanotechnology and Nanotoxicology, Harvard T. H. Chan School of Public Health, Boston, MA, 07016, USA
| | - Dimitrios Bitounis
- Center for Nanotechnology and Nanotoxicology, Harvard T. H. Chan School of Public Health, Boston, MA, 07016, USA
| | - Kunal Bhattacharya
- Center for Nanotechnology and Nanotoxicology, Harvard T. H. Chan School of Public Health, Boston, MA, 07016, USA
| | - Georgios Pyrgiotakis
- Center for Nanotechnology and Nanotoxicology, Harvard T. H. Chan School of Public Health, Boston, MA, 07016, USA
| | - Zhenyuan Zhang
- Center for Nanotechnology and Nanotoxicology, Harvard T. H. Chan School of Public Health, Boston, MA, 07016, USA
| | - Emilia Purington
- Department of Chemical and Biological Engineering, University of Maine, Orono ME 04469 USA
| | - William Gramlich
- Department of Chemistry, University of Maine, Orono, ME 04469 USA
| | - Yohann Grondin
- Department of Environmental Health, Molecular and Integrative Physiological Sciences Program, Harvard T. H. Chan School of Public Health, Boston, MA, 07016, USA
| | - Rick Rogers
- Department of Environmental Health, Molecular and Integrative Physiological Sciences Program, Harvard T. H. Chan School of Public Health, Boston, MA, 07016, USA
| | - Douglas Bousfield
- Department of Chemical and Biological Engineering, University of Maine, Orono ME 04469 USA
| | - Philip Demokritou
- Center for Nanotechnology and Nanotoxicology, Harvard T. H. Chan School of Public Health, Boston, MA, 07016, USA
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23
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Ede JD, Ong KJ, Goergen M, Rudie A, Pomeroy-Carter CA, Shatkin JA. Risk Analysis of Cellulose Nanomaterials by Inhalation: Current State of Science. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E337. [PMID: 30832338 PMCID: PMC6474143 DOI: 10.3390/nano9030337] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 01/31/2019] [Accepted: 02/23/2019] [Indexed: 01/04/2023]
Abstract
Cellulose nanomaterials (CNs) are emerging advanced materials with many unique properties and growing commercial significance. A life-cycle risk assessment and environmental health and safety roadmap identified potential risks from inhalation of powdered CNs in the workplace as a key gap in our understanding of safety and recommended addressing this data gap to advance the safe and successful commercialization of these materials. Here, we (i) summarize the currently available published literature for its contribution to our current understanding of CN inhalation hazard and (ii) evaluate the quality of the studies for risk assessment purposes using published study evaluation tools for nanomaterials to assess the weight of evidence provided. Our analysis found that the quality of the available studies is generally inadequate for risk assessment purposes but is improving over time. There have been some advances in knowledge about the effects of short-term inhalation exposures of CN. The most recent in vivo studies suggest that short-term exposure to CNs results in transient inflammation, similarly to other poorly soluble, low toxicity dusts such as conventional cellulose, but is markedly different from fibers with known toxicity such as certain types of multiwalled carbon nanotubes or asbestos. However, several data gaps remain, and there is still a lack of understanding of the effects from long-term, low-dose exposures that represent realistic workplace conditions, essential for a quantitative assessment of potential health risk. Therefore, taking precautions when handling dry forms of CNs to avoid dust inhalation exposure is warranted.
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Affiliation(s)
- James D Ede
- Vireo Advisors, LLC, Boston, MA 02130-4323, USA.
| | | | - Michael Goergen
- P3Nano, U.S. Endowment for Forestry and Communities, Greenville, SC 29601, USA.
| | - Alan Rudie
- Forest Products Laboratory, USDA Forest Service, Madison, WI 53726-2398, USA.
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24
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Hadrup N, Knudsen KB, Berthing T, Wolff H, Bengtson S, Kofoed C, Espersen R, Højgaard C, Winther JR, Willemoës M, Wedin I, Nuopponen M, Alenius H, Norppa H, Wallin H, Vogel U. Pulmonary effects of nanofibrillated celluloses in mice suggest that carboxylation lowers the inflammatory and acute phase responses. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2019; 66:116-125. [PMID: 30665014 DOI: 10.1016/j.etap.2019.01.003] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Accepted: 01/13/2019] [Indexed: 06/09/2023]
Abstract
We studied if the pulmonary and systemic toxicity of nanofibrillated celluloses can be reduced by carboxylation. Nanofibrillated celluloses administered at 6 or 18 μg to mice by intratracheal instillation were: 1) FINE NFC, 2-20 μm in length, 2-15 nm in width, 2) AS (-COOH), carboxylated, 0.5-10 μm in length, 4-10 nm in width, containing the biocide BIM MC4901 and 3) BIOCID FINE NFC: as (1) but containing BIM MC4901. FINE NFC administration increased neutrophil influx in BAL and induced SAA3 in plasma. AS (-COOH) produced lower neutrophil influx and systemic SAA3 levels than FINE NFC. Results obtained with BIOCID FINE NFC suggested that BIM MC4901 biocide did not explain the lowered response. Increased DNA damage levels were observed across materials, doses and time points. In conclusion, carboxylation of nanofibrillated cellulose was associated with reduced pulmonary and systemic toxicity, suggesting involvement of OH groups in the inflammatory and acute phase responses.
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Affiliation(s)
- Niels Hadrup
- National Research Centre for the Working Environment (NFA), 105 Lersø Parkallé, Copenhagen Ø, Denmark.
| | - Kristina Bram Knudsen
- National Research Centre for the Working Environment (NFA), 105 Lersø Parkallé, Copenhagen Ø, Denmark.
| | - Trine Berthing
- National Research Centre for the Working Environment (NFA), 105 Lersø Parkallé, Copenhagen Ø, Denmark.
| | - Henrik Wolff
- Finnish Institute of Occupational Health (FIOH), P.O. Box 40, 00032, Työterveyslaitos, Helsinki, Finland.
| | - Stefan Bengtson
- National Research Centre for the Working Environment (NFA), 105 Lersø Parkallé, Copenhagen Ø, Denmark.
| | - Christian Kofoed
- Section for Biomolecular Sciences, Department of Biology, University of Copenhagen, Denmark.
| | - Roall Espersen
- Section for Biomolecular Sciences, Department of Biology, University of Copenhagen, Denmark.
| | - Casper Højgaard
- Section for Biomolecular Sciences, Department of Biology, University of Copenhagen, Denmark.
| | - Jakob Rahr Winther
- Section for Biomolecular Sciences, Department of Biology, University of Copenhagen, Denmark.
| | - Martin Willemoës
- Section for Biomolecular Sciences, Department of Biology, University of Copenhagen, Denmark.
| | | | | | - Harri Alenius
- Department of Bacteriology and Immunology, University of Helsinki, Finland; Institute of Environmental Medicine (IMM), Karolinska Institutet, Sweden.
| | - Hannu Norppa
- Finnish Institute of Occupational Health (FIOH), P.O. Box 40, 00032, Työterveyslaitos, Helsinki, Finland.
| | - Håkan Wallin
- National Institute of Occupational Health, Oslo, Norway.
| | - Ulla Vogel
- National Research Centre for the Working Environment (NFA), 105 Lersø Parkallé, Copenhagen Ø, Denmark; Department of Micro- and Nanotechnology, Danish Technical University (DTU), DK-2800, Kgs., Lyngby, Denmark.
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