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Makhado BP, Oladipo AO, Gumbi NN, De Kock LA, Andraos C, Gulumian M, Nxumalo EN. Unravelling the toxicity of carbon nanomaterials - From cellular interactions to mechanistic understanding. Toxicol In Vitro 2024; 100:105898. [PMID: 39029601 DOI: 10.1016/j.tiv.2024.105898] [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: 04/05/2024] [Revised: 07/03/2024] [Accepted: 07/13/2024] [Indexed: 07/21/2024]
Abstract
The application of carbon nanomaterials in diverse fields has substantially increased their demand for commercial usage. Within the earliest decade, the development of functional materials has further increased the significance of this element. Despite the advancements recorded, the potential harmful impacts of embracing carbon nanomaterials for biological applications must be balanced against their advantages. Interestingly, many studies have neglected the intriguing and dynamic cellular interaction of carbon nanomaterials and the mechanistic understanding of their property-driven behaviour, even though common toxicity profiles have been reported. Reiterating the toxicity issue, several researchers conclude that these materials have minimal toxicity and may be safe for contact with biological systems at certain dosages. Here, we aim to provide a report on the significance of some of the properties that influence their toxicity. After that, a description of the implication of nanotoxicology in humans and living systems, revealing piece by piece their exposure routes and possible risks, will be provided. Then, an extensive discussion of the mechanistic puzzle modulating the interface between various human cellular systems and carbon nanomaterials such as carbon nanotubes, carbon dots, graphene, fullerenes, and nanodiamonds will follow. Finally, this review also sheds light on the organization that handles the risk associated with nanomaterials.
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Affiliation(s)
- Bveledzani P Makhado
- Institute for Nanotechnology and Water Sustainability, College of Science, Engineering, and Technology, University of South Africa, Roodepoort 1710, South Africa
| | - Adewale O Oladipo
- Department of Life and Consumer Sciences, College of Agriculture and Environmental Sciences, University of South Africa, Roodepoort 1710, South Africa
| | - Nozipho N Gumbi
- Institute for Nanotechnology and Water Sustainability, College of Science, Engineering, and Technology, University of South Africa, Roodepoort 1710, South Africa
| | - Lueta A De Kock
- Institute for Nanotechnology and Water Sustainability, College of Science, Engineering, and Technology, University of South Africa, Roodepoort 1710, South Africa
| | - Charlene Andraos
- Water Research Group, Unit for Environmental Sciences and Management, North-West University Potchefstroom, South Africa; National Institute for Occupational Health (NIOH), National Health Laboratory Service (NHLS), Johannesburg, South Africa; School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Mary Gulumian
- Water Research Group, Unit for Environmental Sciences and Management, North-West University Potchefstroom, South Africa
| | - Edward N Nxumalo
- Institute for Nanotechnology and Water Sustainability, College of Science, Engineering, and Technology, University of South Africa, Roodepoort 1710, South Africa.
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2
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Rhazouani A, Gamrani H, Gebrati L, Kurniawan TA, Aziz F. The effect of graphene oxide administration on the brains of male mice: Behavioral study and assessment of oxidative stress. Neurotoxicology 2024; 103:189-197. [PMID: 38876426 DOI: 10.1016/j.neuro.2024.06.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2024] [Revised: 06/01/2024] [Accepted: 06/11/2024] [Indexed: 06/16/2024]
Abstract
Graphene oxide (GO) nanoparticles are attracting growing interest in various fields, not least because of their distinct characteristics and possible uses. However, concerns about their impact on neurological health are emerging, underlining the need for in-depth studies to assess their neurotoxicity. This study examines GO exposure's neurobehavioral and biochemical effects on the central nervous system (CNS). To this end, we administered two doses of GO (2 and 5 mg/kg GO) to mice over a 46-day treatment period. We performed a battery of behavioral tests on the mice, including the open field to assess locomotor activity, the maze plus to measure anxiety, the pole test to assess balance and the rotarod to measure motor coordination. In parallel, we analyzed malondialdehyde (MDA) levels and catalase activity in the brains of mice exposed to GO nanoparticles. In addition, X-ray energy dispersive (EDX) analysis was performed to determine the molecular composition of the brain. Our observations reveal brain alterations in mice exposed to GO by intraperitoneal injection, demonstrating a dose-dependent relationship. We identified behavioral alterations in mice exposed to GO, such as increased anxiety, decreased motor coordination, reduced locomotor activity and balance disorders. These changes were dose-dependent, suggesting a correlation between the amount of GO administered and the extent of behavioral alterations. At the same time, a dose-dependent increase in malondialdehyde and catalase activity was observed, reinforcing the correlation between exposure intensity and associated biochemical responses.
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Affiliation(s)
- Asmaa Rhazouani
- Laboratory of Water, Biodiversity & Climate Change, Cadi Ayyad University, B.P. 2390, Marrakech 40000, Morocco; National Centre for Studies and Research on Water and Energy (CNEREE), Cadi Ayyad University, B. P 511, Marrakech 40000, Morocco; Laboratory of Clinical, Experimental and Environmental Neurosciences, Cadi Ayyad University, Marrakech, Morocco
| | - Halima Gamrani
- Laboratory of Clinical, Experimental and Environmental Neurosciences, Cadi Ayyad University, Marrakech, Morocco
| | - Lhoucine Gebrati
- Laboratory of Materials, Processes, Environment and Quality, Cadi Ayyad University, BP 63, Safi 46000, Morocco
| | | | - Faissal Aziz
- Laboratory of Water, Biodiversity & Climate Change, Cadi Ayyad University, B.P. 2390, Marrakech 40000, Morocco; National Centre for Studies and Research on Water and Energy (CNEREE), Cadi Ayyad University, B. P 511, Marrakech 40000, Morocco.
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3
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Chen X, Zou M, Liu S, Cheng W, Guo W, Feng X. Applications of Graphene Family Nanomaterials in Regenerative Medicine: Recent Advances, Challenges, and Future Perspectives. Int J Nanomedicine 2024; 19:5459-5478. [PMID: 38863648 PMCID: PMC11166159 DOI: 10.2147/ijn.s464025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Accepted: 05/14/2024] [Indexed: 06/13/2024] Open
Abstract
Graphene family nanomaterials (GFNs) have attracted considerable attention in diverse fields from engineering and electronics to biomedical applications because of their distinctive physicochemical properties such as large specific surface area, high mechanical strength, and favorable hydrophilic nature. Moreover, GFNs have demonstrated the ability to create an anti-inflammatory environment and exhibit antibacterial effects. Consequently, these materials hold immense potential in facilitating cell adhesion, proliferation, and differentiation, further promoting the repair and regeneration of various tissues, including bone, nerve, oral, myocardial, and vascular tissues. Note that challenges still persist in current applications, including concerns regarding biosecurity risks, inadequate adhesion performance, and unsuitable degradability as matrix materials. This review provides a comprehensive overview of current advancements in the utilization of GFNs in regenerative medicine, as well as their molecular mechanism and signaling targets in facilitating tissue repair and regeneration. Future research prospects for GFNs, such as potential in promoting ocular tissue regeneration, are also discussed in details. We hope to offer a valuable reference for the clinical application of GFNs in the treatment of bone defects, nerve damage, periodontitis, and atherosclerosis.
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Affiliation(s)
- Xiuwen Chen
- Stomatology Hospital, School of Stomatology, Southern Medical University, Guangzhou, People’s Republic of China
| | - Meiyan Zou
- Stomatology Hospital, School of Stomatology, Southern Medical University, Guangzhou, People’s Republic of China
| | - Siquan Liu
- Stomatology Hospital, School of Stomatology, Southern Medical University, Guangzhou, People’s Republic of China
| | - Weilin Cheng
- Stomatology Hospital, School of Stomatology, Southern Medical University, Guangzhou, People’s Republic of China
| | - Weihong Guo
- Department of General Surgery, Nanfang Hospital, The First School of Clinical Medicine, Southern Medical University, Guangzhou, People’s Republic of China
| | - Xiaoli Feng
- Stomatology Hospital, School of Stomatology, Southern Medical University, Guangzhou, People’s Republic of China
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Kong C, Chen J, Li P, Wu Y, Zhang G, Sang B, Li R, Shi Y, Cui X, Zhou T. Respiratory Toxicology of Graphene-Based Nanomaterials: A Review. TOXICS 2024; 12:82. [PMID: 38251037 PMCID: PMC10820349 DOI: 10.3390/toxics12010082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 01/04/2024] [Accepted: 01/16/2024] [Indexed: 01/23/2024]
Abstract
Graphene-based nanomaterials (GBNs) consist of a single or few layers of graphene sheets or modified graphene including pristine graphene, graphene nanosheets (GNS), graphene oxide (GO), reduced graphene oxide (rGO), as well as graphene modified with various functional groups or chemicals (e.g., hydroxyl, carboxyl, and polyethylene glycol), which are frequently used in industrial and biomedical applications owing to their exceptional physicochemical properties. Given the widespread production and extensive application of GBNs, they can be disseminated in a wide range of environmental mediums, such as air, water, food, and soil. GBNs can enter the human body through various routes such as inhalation, ingestion, dermal penetration, injection, and implantation in biomedical applications, and the majority of GBNs tend to accumulate in the respiratory system. GBNs inhaled and substantially deposited in the human respiratory tract may impair lung defenses and clearance, resulting in the formation of granulomas and pulmonary fibrosis. However, the specific toxicity of the respiratory system caused by different GBNs, their influencing factors, and the underlying mechanisms remain relatively scarce. This review summarizes recent advances in the exposure, metabolism, toxicity and potential mechanisms, current limitations, and future perspectives of various GBNs in the respiratory system.
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Affiliation(s)
- Chunxue Kong
- Environmental Toxicology Laboratory, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, School of Public Health, Wuhan University of Science and Technology, Wuhan 430065, China; (C.K.); (G.Z.); (B.S.); (Y.S.)
| | - Junwen Chen
- Department of Pulmonary and Critical Care Medicine, Xiangyang No. 1 People’s Hospital, Hubei University of Medicine, Xiangyang 441000, China; (J.C.); (P.L.)
| | - Ping Li
- Department of Pulmonary and Critical Care Medicine, Xiangyang No. 1 People’s Hospital, Hubei University of Medicine, Xiangyang 441000, China; (J.C.); (P.L.)
| | - Yukang Wu
- Department of Physical and Chemical Laboratory, The Affiliated Wuxi Center for Disease Control and Prevention of Nanjing Medical University, Wuxi Center for Disease Control and Prevention, Wuxi 214023, China;
| | - Guowei Zhang
- Environmental Toxicology Laboratory, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, School of Public Health, Wuhan University of Science and Technology, Wuhan 430065, China; (C.K.); (G.Z.); (B.S.); (Y.S.)
| | - Bimin Sang
- Environmental Toxicology Laboratory, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, School of Public Health, Wuhan University of Science and Technology, Wuhan 430065, China; (C.K.); (G.Z.); (B.S.); (Y.S.)
| | - Rui Li
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan 430079, China;
| | - Yuqin Shi
- Environmental Toxicology Laboratory, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, School of Public Health, Wuhan University of Science and Technology, Wuhan 430065, China; (C.K.); (G.Z.); (B.S.); (Y.S.)
| | - Xiuqing Cui
- Hubei Provincial Key Laboratory for Applied Toxicology, Hubei Center for Disease Control and Prevention, Wuhan 430079, China
| | - Ting Zhou
- Environmental Toxicology Laboratory, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, School of Public Health, Wuhan University of Science and Technology, Wuhan 430065, China; (C.K.); (G.Z.); (B.S.); (Y.S.)
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5
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Utkan G, Yumusak G, Tunali BC, Ozturk T, Turk M. Production of Reduced Graphene Oxide by Using Three Different Microorganisms and Investigation of Their Cell Interactions. ACS OMEGA 2023; 8:31188-31200. [PMID: 37663476 PMCID: PMC10468768 DOI: 10.1021/acsomega.3c03213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 08/08/2023] [Indexed: 09/05/2023]
Abstract
Despite the huge and efficient functionalities of reduced graphene oxide (RGO) for bioengineering applications, the use of harsh chemicals and unfavorable techniques in their production remains a major challenge. Microbial production of reduced graphene oxide (RGO) using specific bacterial strains has gained interest as a sustainable and efficient method. The reduction of GO to RGO by selected bacterial strains was achieved through their enzymatic activities and resulted in the removal of oxygen functional groups from GO, leading to the formation of RGO with enhanced structural integrity. The use of microorganisms offers a sustainable approach, utilizing renewable carbon sources and mild reaction conditions. This study investigates the production of RGO using three different bacterial strains: Lactococcus lactis (L. Lactis), Lactobacillus plantarum (L. plantarum), and Escherichia coli (E. coli) and evaluates its toxicity for safe utilization. The aim is to assess the quality of the produced RGO and evaluate its toxicity for potential applications. Thus, this study focused on the microbial production of reduced graphene oxides well as the investigation of their cellular interactions. Graphite-derived graphene oxide was used as a starting material and microbially reduced GO products were characterized using the FTIR, Raman, XRD, TGA, and XPS methods to determine their physical and chemical properties. FTIR shows that the epoxy and some of the alkoxy and carboxyl functional groups were reduced by E. coli and L. lactis, whereas the alkoxy groups were mostly reduced by L. plantarum. The ID/IG ratio from Raman spectra was found as 2.41 for GO. A substantial decrease in the ratio as well as defects was observed as 1.26, 1.35, and 1.46 for ERGO, LLRGO, and LPRGO after microbial reduction. The XRD analysis also showed a significant reduction in the interlayer spacing of the GO from 0.89 to 0.34 nm for all the reduced graphene oxides. TGA results showed that reduction of GO with L. lactis provided more reduction than other bacteria and formed a structure closer to graphene. Similarly, analysis with XPS showed that L lactis provides the most effective reduction with a C/O ratio of 3.70. In the XPS results obtained with all bacteria, it was observed that the C/O ratio increased because of the microbial reduction. Toxicity evaluations were performed to assess the biocompatibility and safety of the produced RGO. Cell viability assays were conducted using DLD-1 and CHO cell lines to determine the potential cytotoxic effects of RGO produced by each bacterial strain. Additionally, apoptotic, and necrotic responses were examined to understand the cellular mechanisms affected by RGO exposure. The results indicated that all the RGOs have concentration-dependent cytotoxicity. A significant amount of cell viability of DLD-1 cells was observed for L. lactis reduced graphene oxide. However, the highest cell viability of CHO cells was observed for L. plantarum reduced graphene oxide. All reduced graphene oxides have low apoptotic and necrotic responses in both cell lines. These findings highlight the importance of considering the specific bacterial strain used in RGO production as it can influence the toxicity and cellular response of the resulting RGO. The toxicity and cellular response to the final RGO can be affected by the particular bacterial strain that is employed to produce it. This information will help to ensure that RGO is used safely in a variety of applications, including tissue engineering, drug delivery systems, and biosensors, where comprehension of its toxicity profile is essential.
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Affiliation(s)
- Guldem Utkan
- SUNUM
Nanotechnology Research Center,Sabanci University, Istanbul 34956,Turkey
| | - Gorkem Yumusak
- Department
of Metallurgical and Materials Engineering, Faculty of Engineering, Marmara University, Istanbul 34722,Turkey
| | - Beste Cagdas Tunali
- Department
of Bioengineering, Faculty of Engineering, Kirikkale University, Kirikkale 71450,Turkey
| | - Tarik Ozturk
- Food
Institute, Marmara Research Center, TUBITAK, Kocaeli 41470,Turkey
| | - Mustafa Turk
- Department
of Bioengineering, Faculty of Engineering, Kirikkale University, Kirikkale 71450,Turkey
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Pelin M, Passerino C, Rodríguez-Garraus A, Carlin M, Sosa S, Suhonen S, Vales G, Alonso B, Zurutuza A, Catalán J, Tubaro A. Role of Chemical Reduction and Formulation of Graphene Oxide on Its Cytotoxicity towards Human Epithelial Bronchial Cells. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2189. [PMID: 37570507 PMCID: PMC10420834 DOI: 10.3390/nano13152189] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 07/24/2023] [Accepted: 07/26/2023] [Indexed: 08/13/2023]
Abstract
Graphene-based materials may pose a potential risk for human health due to occupational exposure, mainly by inhalation. This study was carried out on bronchial epithelial 16HBE14o- cells to evaluate the role of chemical reduction and formulation of graphene oxide (GO) on its cytotoxic potential. To this end, the effects of GO were compared to its chemically reduced form (rGO) and its stable water dispersion (wdGO), by means of cell viability reduction, reactive oxygen species (ROS) generation, pro-inflammatory mediators release and genotoxicity. These materials induced a concentration-dependent cell viability reduction with the following potency rank: rGO > GO >> wdGO. After 24 h exposure, rGO reduced cell viability with an EC50 of 4.8 μg/mL (eight-fold lower than that of GO) and was the most potent material in inducing ROS generation, in contrast to wdGO. Cytokines release and genotoxicity (DNA damage and micronucleus induction) appeared low for all the materials, with wdGO showing the lowest effect, especially for the former. These results suggest a key role for GO reduction in increasing GO cytotoxic potential, probably due to material structure alterations resulting from the reduction process. In contrast, GO formulated in a stable dispersion seems to be the lowest cytotoxic material, presumably due to its lower cellular internalization and damaging capacity.
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Affiliation(s)
- Marco Pelin
- Department of Life Sciences, University of Trieste, Via Fleming 22, 34127 Trieste, Italy; (C.P.); (M.C.); (S.S.); (A.T.)
| | - Clara Passerino
- Department of Life Sciences, University of Trieste, Via Fleming 22, 34127 Trieste, Italy; (C.P.); (M.C.); (S.S.); (A.T.)
| | - Adriana Rodríguez-Garraus
- Finnish Institute of Occupational Health, Box 40, Työterveyslaitos, 00032 Helsinki, Finland; (A.R.-G.); (S.S.); (G.V.); (J.C.)
| | - Michela Carlin
- Department of Life Sciences, University of Trieste, Via Fleming 22, 34127 Trieste, Italy; (C.P.); (M.C.); (S.S.); (A.T.)
| | - Silvio Sosa
- Department of Life Sciences, University of Trieste, Via Fleming 22, 34127 Trieste, Italy; (C.P.); (M.C.); (S.S.); (A.T.)
| | - Satu Suhonen
- Finnish Institute of Occupational Health, Box 40, Työterveyslaitos, 00032 Helsinki, Finland; (A.R.-G.); (S.S.); (G.V.); (J.C.)
| | - Gerard Vales
- Finnish Institute of Occupational Health, Box 40, Työterveyslaitos, 00032 Helsinki, Finland; (A.R.-G.); (S.S.); (G.V.); (J.C.)
| | - Beatriz Alonso
- Graphenea S.A., Mikeletegi 83, 20009 San Sebastián, Spain; (B.A.); (A.Z.)
| | - Amaia Zurutuza
- Graphenea S.A., Mikeletegi 83, 20009 San Sebastián, Spain; (B.A.); (A.Z.)
| | - Julia Catalán
- Finnish Institute of Occupational Health, Box 40, Työterveyslaitos, 00032 Helsinki, Finland; (A.R.-G.); (S.S.); (G.V.); (J.C.)
- Department of Anatomy Embryology and Genetics, University of Zaragoza, 50013 Zaragoza, Spain
| | - Aurelia Tubaro
- Department of Life Sciences, University of Trieste, Via Fleming 22, 34127 Trieste, Italy; (C.P.); (M.C.); (S.S.); (A.T.)
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Kim J, Kang SH, Choi Y, Lee W, Kim N, Tanaka M, Kang SH, Choi J. Antibacterial and biofilm-inhibiting cotton fabrics decorated with copper nanoparticles grown on graphene nanosheets. Sci Rep 2023; 13:11947. [PMID: 37488203 PMCID: PMC10366191 DOI: 10.1038/s41598-023-38723-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Accepted: 07/13/2023] [Indexed: 07/26/2023] Open
Abstract
Infectious pathogens can be transmitted through textiles. Therefore, additional efforts are needed to develop functional fabrics containing antimicrobial substances to prevent the growth of antibiotic-resistant bacteria and their biofilms. Here, we developed a cotton fabric coated with reduced graphene oxide (rGO) and copper nanoparticles (Cu NPs), which possessed hydrophobic, antimicrobial, and anti-biofilm properties. Once the graphene oxide was dip-coated on a cellulose cotton fabric, Cu NPs were synthesized using a chemical reduction method to fabricate an rGO/Cu fabric, which was analyzed through FE-SEM, EDS, and ICP-MS. The results of our colony-forming unit assays indicated that the rGO/Cu fabric possessed high antibacterial and anti-biofilm properties against Escherichia coli, Pseudomonas aeruginosa, Staphylococcus epidermidis, Corynebacterium xerosis, and Micrococcus luteus. Particularly, the fabric could inhibit the growth of E. coli, C. xerosis, and M. luteus with a 99% efficiency. Furthermore, our findings confirmed that the same concentrations of rGO/Cu had no cytotoxic effects against CCD-986Sk and Human Dermal Fibroblast (HDF), human skin cells, and NIH/3T3, a mouse skin cell. The developed rGO/Cu fabric thus exhibited promising applicability as a cotton material that can maintain hygienic conditions by preventing the propagation of various bacteria and sufficiently suppressing biofilm formation while also being harmless to the human body.
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Affiliation(s)
- Jiwon Kim
- School of Integrative Engineering, Chung-Ang University, Seoul, 06974, Republic of Korea
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Seung Hyun Kang
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, 06973, Republic of Korea
| | - Yonghyun Choi
- School of Integrative Engineering, Chung-Ang University, Seoul, 06974, Republic of Korea
- Feynman Institute of Technology, Nanomedicine Corporation, Seoul, 06974, Republic of Korea
| | - Wonjae Lee
- School of Integrative Engineering, Chung-Ang University, Seoul, 06974, Republic of Korea
| | - Nayeong Kim
- School of Integrative Engineering, Chung-Ang University, Seoul, 06974, Republic of Korea
| | - Masayoshi Tanaka
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama-shi, Kanagawa, 226-8503, Japan
| | - Shink Hyuk Kang
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, 06973, Republic of Korea.
| | - Jonghoon Choi
- School of Integrative Engineering, Chung-Ang University, Seoul, 06974, Republic of Korea.
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, PA, 19104, USA.
- Feynman Institute of Technology, Nanomedicine Corporation, Seoul, 06974, Republic of Korea.
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Alaizeri Z, Alhadlaq HA, Aldawood S, Akhtar MJ, Ahamed M. Bi 2O 3-Doped WO 3 Nanoparticles Decorated on rGO Sheets: Simple Synthesis, Characterization, Photocatalytic Performance, and Selective Cytotoxicity toward Human Cancer Cells. ACS OMEGA 2023; 8:25020-25033. [PMID: 37483253 PMCID: PMC10357421 DOI: 10.1021/acsomega.3c01644] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 06/20/2023] [Indexed: 07/25/2023]
Abstract
Graphene derivatives and metal oxide-based nanocomposites (NCs) are being studied for their diverse applications including gas sensing, environmental remediation, and biomedicine. The aim of the present work was to evaluate the effect of rGO and Bi2O3 integration on photocatalytic and anticancer efficacy. A novel Bi2O3-WO3/rGO NCs was successfully prepared via the precipitation method. X-ray crystallography (XRD) data confirmed the crystallographic structure and the phase composition of the prepared samples. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) analysis confirmed the loading of Bi2O3-doped WO3 NPs on rGO sheets. Energy-dispersive X-ray (EDX) results confirmed that all elements of carbon (C), oxygen (O), tungsten (W), and bismuth (Bi) were present in Bi2O3-WO3/rGO NCs. The oxidation state and presence of elemental compositions in Bi2O3-WO3/rGO NCs were verified by the X-ray photoelectron spectroscopy (XPS) study. Raman spectra indicate a reduction in carbon-oxygen functional groups and an increase in the graphitic carbon percentage of the Bi2O3-WO3/rGO NCs. The functional group present in the prepared samples was examined by Fourier transform infrared (FTIR) spectroscopy. UV analysis showed that the band gap energy of the synthesized samples was slightly decreased with Bi2O3 and rGO doping. Photoluminescence (PL) spectra showed that the recombination rate of the electron-hole pair decreased with the dopants. Degradation of RhB dye under UV light was employed to evaluate photocatalytic performance. The results showed that the Bi2O3-WO3/rGO NCs have high photocatalytic activity with a degradation rate of up to 91%. Cytotoxicity studies showed that Bi2O3 and rGO addition enhance the anticancer activity of WO3 against human lung cancer cells (A549) and colorectal cancer cells (HCT116). Moreover, Bi2O3-WO3/rGO NCs showed improved biocompatibility in human umbilical vein endothelial cells (HUVECs) than pure WO3 NPs. The results of this work showed that Bi2O3-doped WO3 particles decorated on rGO sheets display improved photocatalytic and anticancer activity. The preliminary data warrants further research on such NCs for their applications in the environment and medicine.
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Rodríguez-Garraus A, Passerino C, Vales G, Carlin M, Suhonen S, Tubaro A, Gómez J, Pelin M, Catalán J. Impact of physico-chemical properties on the toxicological potential of reduced graphene oxide in human bronchial epithelial cells. Nanotoxicology 2023; 17:471-495. [PMID: 37799028 DOI: 10.1080/17435390.2023.2265465] [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: 07/14/2023] [Accepted: 09/13/2023] [Indexed: 10/07/2023]
Abstract
The increasing use of graphene-based materials (GBM) requires their safety evaluation, especially in occupational settings. The same physico-chemical (PC) properties that confer GBM extraordinary functionalities may affect the potential toxic response. Most toxicity assessments mainly focus on graphene oxide and rarely investigate GBMs varying only by one property. As a novelty, the present study assessed the in vitro cytotoxicity and genotoxicity of six reduced graphene oxides (rGOs) with different PC properties in the human bronchial epithelial 16HBE14o - cell line. Of the six materials, rGO1-rGO4 only differed in the carbon-to-oxygen (C/O) content, whereas rGO5 and rGO6 were characterized by different lateral size and number of layers, respectively, but similar C/O content compared with rGO1. The materials were characterized by transmission electron microscopy, X-ray photoelectron spectroscopy, laser diffraction and dynamic light scattering, and Brunauer-Emmett-Teller analysis. Cytotoxicity (Luminescent Cell Viability and WST-8 assays), the induction of reactive oxygen species (ROS; 2',7'-dichlorofluorescin diacetate-based assay), the production of cytokines (enzyme-linked immunosorbent assays) and genotoxicity (comet and micronucleus assays) were evaluated. Furthermore, the internalization of the materials in the cells was confirmed by laser confocal microscopy. No relationships were found between the C/O ratio or the lateral size and any of the rGO-induced biological effects. However, rGO of higher oxygen content showed higher cytotoxic and early ROS-inducing potential, whereas genotoxic effects were observed with the rGO of the lowest density of oxygen groups. On the other hand, a higher number of layers seems to be associated with a decreased potential for inducing cytotoxicity and ROS production.
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Affiliation(s)
| | - Clara Passerino
- Department of Life Sciences, University of Trieste, Trieste, Italy
| | - Gerard Vales
- Finnish Institute of Occupational Health, Työterveyslaitos, Helsinki, Finland
| | - Michela Carlin
- Department of Life Sciences, University of Trieste, Trieste, Italy
| | - Satu Suhonen
- Finnish Institute of Occupational Health, Työterveyslaitos, Helsinki, Finland
| | - Aurelia Tubaro
- Department of Life Sciences, University of Trieste, Trieste, Italy
| | - Julio Gómez
- Avanzare Innovacion Tecnologica S.L, Navarrete, Spain
| | - Marco Pelin
- Department of Life Sciences, University of Trieste, Trieste, Italy
| | - Julia Catalán
- Finnish Institute of Occupational Health, Työterveyslaitos, Helsinki, Finland
- Department of Anatomy, Embryology and Genetics, University of Zaragoza, Zaragoza, Spain
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10
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Hatshan MR, Saquib Q, Siddiqui MA, Faisal M, Ahmad J, Al-Khedhairy AA, Shaik MR, Khan M, Wahab R, Matteis VD, Adil SF. Effectiveness of Nonfunctionalized Graphene Oxide Nanolayers as Nanomedicine against Colon, Cervical, and Breast Cancer Cells. Int J Mol Sci 2023; 24:9141. [PMID: 37298090 PMCID: PMC10252622 DOI: 10.3390/ijms24119141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 04/26/2023] [Accepted: 05/17/2023] [Indexed: 06/12/2023] Open
Abstract
Recent studies in nanomedicine have intensively explored the prospective applications of surface-tailored graphene oxide (GO) as anticancer entity. However, the efficacy of nonfunctionalized graphene oxide nanolayers (GRO-NLs) as an anticancer agent is less explored. In this study, we report the synthesis of GRO-NLs and their in vitro anticancer potential in breast (MCF-7), colon (HT-29), and cervical (HeLa) cancer cells. GRO-NLs-treated HT-29, HeLa, and MCF-7 cells showed cytotoxicity in the MTT and NRU assays via defects in mitochondrial functions and lysosomal activity. HT-29, HeLa, and MCF-7 cells treated with GRO-NLs exhibited substantial elevations in ROS, disturbances of the mitochondrial membrane potential, an influx of Ca2+, and apoptosis. The qPCR quantification showed the upregulation of caspase 3, caspase 9, bax, and SOD1 genes in GRO-NLs-treated cells. Western blotting showed the depletion of P21, P53, and CDC25C proteins in the above cancer cell lines after GRO-NLs treatment, indicating its function as a mutagen to induce mutation in the P53 gene, thereby affecting P53 protein and downstream effectors P21 and CDC25C. In addition, there may be a mechanism other than P53 mutation that controls P53 dysfunction. We conclude that nonfunctionalized GRO-NLs exhibit prospective biomedical application as a putative anticancer entity against colon, cervical, and breast cancers.
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Affiliation(s)
- Mohammad Rafe Hatshan
- Department of Chemistry, College of Sciences, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; (M.R.H.); (M.R.S.); (M.K.); (S.F.A.)
| | - Quaiser Saquib
- Chair for DNA Research, Zoology Department, College of Sciences, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; (M.A.S.); (J.A.); (A.A.A.-K.); (R.W.)
| | - Maqsood A. Siddiqui
- Chair for DNA Research, Zoology Department, College of Sciences, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; (M.A.S.); (J.A.); (A.A.A.-K.); (R.W.)
| | - Mohammad Faisal
- Botany and Microbiology Department, College of Sciences, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia;
| | - Javed Ahmad
- Chair for DNA Research, Zoology Department, College of Sciences, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; (M.A.S.); (J.A.); (A.A.A.-K.); (R.W.)
| | - Abdulaziz A. Al-Khedhairy
- Chair for DNA Research, Zoology Department, College of Sciences, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; (M.A.S.); (J.A.); (A.A.A.-K.); (R.W.)
| | - Mohammed Rafi Shaik
- Department of Chemistry, College of Sciences, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; (M.R.H.); (M.R.S.); (M.K.); (S.F.A.)
| | - Mujeeb Khan
- Department of Chemistry, College of Sciences, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; (M.R.H.); (M.R.S.); (M.K.); (S.F.A.)
| | - Rizwan Wahab
- Chair for DNA Research, Zoology Department, College of Sciences, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; (M.A.S.); (J.A.); (A.A.A.-K.); (R.W.)
| | - Valeria De Matteis
- Department of Mathematics and Physics “Ennio De Giorgi”, University of Salento, Via Arnesano, 73100 Lecce, Italy;
| | - Syed Farooq Adil
- Department of Chemistry, College of Sciences, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; (M.R.H.); (M.R.S.); (M.K.); (S.F.A.)
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11
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Preparation of graphene-based nanocomposites with spinel ferrite nanoparticles: Their cytotoxic levels in different human cell lines and molecular docking studies. J Organomet Chem 2023. [DOI: 10.1016/j.jorganchem.2023.122660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
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12
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Dabrowski B, Zuchowska A, Kasprzak A, Zukowska GZ, Brzozka Z. Cellular uptake of biotransformed graphene oxide into lung cells. Chem Biol Interact 2023; 376:110444. [PMID: 36906140 DOI: 10.1016/j.cbi.2023.110444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 03/03/2023] [Accepted: 03/05/2023] [Indexed: 03/11/2023]
Abstract
Due to its high surface area and convenient functionalization, graphene oxide has many potential applications in biomedicine, especially as a drug carrier. However, knowledge about its internalization inside mammalian cells is still limited. Graphene oxide cellular uptake is a complex phenomenon affected by factors such as the size of the particle and modifications of its surface. Moreover, nanomaterials introduced into living organisms interact with biological fluids' components. It may further alter its biological properties. All these factors must be considered when the cellular uptake of potential drug carriers is considered. In this study, the effect of graphene oxide particle sizes on internalization efficiency into normal (LL-24) and cancerous (A549) human lung cells was investigated. Moreover, one set of samples was incubated with human serum to determine how the interaction of graphene oxide with serum components affects its structure, surface, and interaction with cells. Our findings indicate that samples incubated with serum enhance cell proliferation but enter the cells with lesser efficiency than their counterparts not incubated with human serum. What is more affinity towards the cells was higher for larger particles.
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Affiliation(s)
| | | | - Artur Kasprzak
- Faculty of Chemistry, Warsaw University of Technology, Poland
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13
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Xiao Y, Pang YX, Yan Y, Qian P, Zhao H, Manickam S, Wu T, Pang CH. Synthesis and Functionalization of Graphene Materials for Biomedical Applications: Recent Advances, Challenges, and Perspectives. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2205292. [PMID: 36658693 PMCID: PMC10037997 DOI: 10.1002/advs.202205292] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 12/05/2022] [Indexed: 06/17/2023]
Abstract
Since its discovery in 2004, graphene is increasingly applied in various fields owing to its unique properties. Graphene application in the biomedical domain is promising and intriguing as an emerging 2D material with a high surface area, good mechanical properties, and unrivalled electronic and physical properties. This review summarizes six typical synthesis methods to fabricate pristine graphene (p-G), graphene oxide (GO), and reduced graphene oxide (rGO), followed by characterization techniques to examine the obtained graphene materials. As bare graphene is generally undesirable in vivo and in vitro, functionalization methods to reduce toxicity, increase biocompatibility, and provide more functionalities are demonstrated. Subsequently, in vivo and in vitro behaviors of various bare and functionalized graphene materials are discussed to evaluate the functionalization effects. Reasonable control of dose (<20 mg kg-1 ), sizes (50-1000 nm), and functionalization methods for in vivo application are advantageous. Then, the key biomedical applications based on graphene materials are discussed, coupled with the current challenges and outlooks of this growing field. In a broader sense, this review provides a comprehensive discussion on the synthesis, characterization, functionalization, evaluation, and application of p-G, GO, and rGO in the biomedical field, highlighting their recent advances and potential.
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Affiliation(s)
- Yuqin Xiao
- Department of Chemical and Environmental EngineeringUniversity of Nottingham Ningbo ChinaNingbo315100P. R. China
- New Materials InstituteUniversity of NottinghamNingbo315100P. R. China
- Materials Interfaces CenterShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenGuangdong518055P. R. China
| | - Yoong Xin Pang
- Department of Chemical and Environmental EngineeringUniversity of Nottingham Ningbo ChinaNingbo315100P. R. China
- New Materials InstituteUniversity of NottinghamNingbo315100P. R. China
| | - Yuxin Yan
- College of Energy EngineeringZhejiang UniversityHangzhouZhejiang310027P. R. China
| | - Ping Qian
- Beijing Advanced Innovation Center for Materials Genome EngineeringBeijing100083P. R. China
- School of Mathematics and PhysicsUniversity of Science and Technology BeijingBeijing100083P. R. China
| | - Haitao Zhao
- Materials Interfaces CenterShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenGuangdong518055P. R. China
| | - Sivakumar Manickam
- Petroleum and Chemical EngineeringFaculty of EngineeringUniversiti Teknologi BruneiBandar Seri BegawanBE1410Brunei Darussalam
| | - Tao Wu
- New Materials InstituteUniversity of NottinghamNingbo315100P. R. China
- Key Laboratory for Carbonaceous Wastes Processing and ProcessIntensification Research of Zhejiang ProvinceUniversity of Nottingham Ningbo ChinaNingbo315100P. R. China
| | - Cheng Heng Pang
- Department of Chemical and Environmental EngineeringUniversity of Nottingham Ningbo ChinaNingbo315100P. R. China
- Municipal Key Laboratory of Clean Energy Conversion TechnologiesUniversity of Nottingham Ningbo ChinaNingbo315100P. R. China
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14
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Sivaselvam S, Mohankumar A, Narmadha R, Selvakumar R, Sundararaj P, Viswanathan C, Ponpandian N. Effect of gamma-ray irradiated reduced graphene oxide (rGO) on environmental health: An in-vitro and in-vivo studies. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 318:120933. [PMID: 36565492 DOI: 10.1016/j.envpol.2022.120933] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 12/19/2022] [Accepted: 12/21/2022] [Indexed: 06/17/2023]
Abstract
The unique properties of reduced graphene oxide (rGO) have drawn the attention of scientists worldwide since the last decade and it is explored for a wide range of applications. However, the rapid expansion of rGO use in various products will eventually lead to environenal exposure and rises a safety concern on the environment and humal health risk. Moreover, the utilization of toxic chemicals for the reduction of graphene oxide (GO) into rGO is not environmentally friendly, warranting the exploration of non-toxic approaches. In the present work, rGO was synthesized using a different dose of gamma-ray irradiation and characterized. The in-vitro and in-vivo analysis indicated that the gamma-irradiated rGO induced toxicity depending on its degree of reduction and dosage. In the L929 cells, rGO-30 KGy significantly induced cytotoxicity even at low concentration (1 mg L-1) by inducing reactive oxygen species (ROS), lactate dehydrogenase (LDH) enzyme production, nuclear fragmentation and apoptosis. The change in morphology of the cells like membrane blebbing and cell rounding was also observed via FESEM. In the in-vivo model Caenorhabditis elegans, rGO-30 KGy significantly affected the functioning of primary and secondary targeted organs and also negatively influenced the nuclear accumulation of transcription factors (DAF-16/FOXO and SKN-1/Nrf2), neuronal health, and antioxidant defense mechanism of the nematodes. The real-time PCR analysis showed significant up-regulation (ced-3, ced-4, cep-1, egl-1, and hus-1) and down-regulation (ced-9) of the gene involved in germ-line and DNA damage-induced apoptosis. The detailed toxicity mechanism of gamma irradiated rGO has been elucidated. This work highlights the toxicity of rGO prepared by gamma-ray radiation and paves way for understating the toxicity mechanism.
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Affiliation(s)
- S Sivaselvam
- Department of Nanoscience and Technology, Bharathiar University, Coimbatore, 641 046, India
| | - A Mohankumar
- Department of Zoology, Bharathiar University, Coimbatore, 641 046, India
| | - R Narmadha
- Nanobiotechnology Laboratory, Department of Nanobiotechnology, PSG Institute of Advanced Studies, Peelamedu, Coimbatore, 641 004, India
| | - R Selvakumar
- Nanobiotechnology Laboratory, Department of Nanobiotechnology, PSG Institute of Advanced Studies, Peelamedu, Coimbatore, 641 004, India
| | - P Sundararaj
- Department of Zoology, Bharathiar University, Coimbatore, 641 046, India
| | - C Viswanathan
- Department of Nanoscience and Technology, Bharathiar University, Coimbatore, 641 046, India
| | - N Ponpandian
- Department of Nanoscience and Technology, Bharathiar University, Coimbatore, 641 046, India.
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15
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Wang T, Russo DP, Bitounis D, Demokritou P, Jia X, Huang H, Zhu H. Integrating structure annotation and machine learning approaches to develop graphene toxicity models. CARBON 2023; 204:484-494. [PMID: 36845527 PMCID: PMC9957041 DOI: 10.1016/j.carbon.2022.12.065] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Modern nanotechnology provides efficient and cost-effective nanomaterials (NMs). The increasing usage of NMs arises great concerns regarding nanotoxicity in humans. Traditional animal testing of nanotoxicity is expensive and time-consuming. Modeling studies using machine learning (ML) approaches are promising alternatives to direct evaluation of nanotoxicity based on nanostructure features. However, NMs, including two-dimensional nanomaterials (2DNMs) such as graphenes, have complex structures making them difficult to annotate and quantify the nanostructures for modeling purposes. To address this issue, we constructed a virtual graphenes library using nanostructure annotation techniques. The irregular graphene structures were generated by modifying virtual nanosheets. The nanostructures were digitalized from the annotated graphenes. Based on the annotated nanostructures, geometrical nanodescriptors were computed using Delaunay tessellation approach for ML modeling. The partial least square regression (PLSR) models for the graphenes were built and validated using a leave-one-out cross-validation (LOOCV) procedure. The resulted models showed good predictivity in four toxicity-related endpoints with the coefficient of determination (R2) ranging from 0.558 to 0.822. This study provides a novel nanostructure annotation strategy that can be applied to generate high-quality nanodescriptors for ML model developments, which can be widely applied to nanoinformatics studies of graphenes and other NMs.
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Affiliation(s)
- Tong Wang
- Department of Chemistry and Biochemistry, Rowan University, Glassboro, NJ 08028, USA
| | - Daniel P. Russo
- Department of Chemistry and Biochemistry, Rowan University, Glassboro, NJ 08028, USA
| | - Dimitrios Bitounis
- Center for Nanotechnology and Nanotoxicology, Department of Environmental Health, T.H. Chan School of Public Health, Harvard University, 655 Huntington Ave, Boston, MA 02115, USA
- Nanoscience and Advanced Materials Center, Environmental Occupational Health Sciences Institute, School of Public Health, Rutgers University, Piscataway, New Jersey 08854, USA
| | - Philip Demokritou
- Center for Nanotechnology and Nanotoxicology, Department of Environmental Health, T.H. Chan School of Public Health, Harvard University, 655 Huntington Ave, Boston, MA 02115, USA
- Nanoscience and Advanced Materials Center, Environmental Occupational Health Sciences Institute, School of Public Health, Rutgers University, Piscataway, New Jersey 08854, USA
| | - Xuelian Jia
- Department of Chemistry and Biochemistry, Rowan University, Glassboro, NJ 08028, USA
| | - Heng Huang
- Department of Electrical and Computer Engineering, Department of Biomedical Informatics, University of Pittsburgh, 5607 Baum Boulevard, Pittsburgh, Pennsylvania, USA
| | - Hao Zhu
- Department of Chemistry and Biochemistry, Rowan University, Glassboro, NJ 08028, USA
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16
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Ding X, Pu Y, Tang M, Zhang T. Pulmonary hazard identifications of Graphene family nanomaterials: Adverse outcome pathways framework based on toxicity mechanisms. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 857:159329. [PMID: 36216050 DOI: 10.1016/j.scitotenv.2022.159329] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 10/05/2022] [Accepted: 10/05/2022] [Indexed: 06/16/2023]
Abstract
Graphene-family nanomaterials (GFNs) are revolutionary new nanomaterials that have attracted significant attention in the field of nanomaterials, but the ensuing problems lie in the potential threats to public health and the ecosystem caused by these nanomaterials. From the perspective of GFN-related health risk assessments, this study reviews the current status of GFN-induced pathological lung events with a focus on the damage caused to different biological moieties (molecular, cellular, tissue, and organ) and the mechanistic relationships between different toxic endpoints. These multiple sites of damage were matched with existing adverse outcome pathways (AOPs) in an online knowledge base to obtain available molecular initiation events (MIEs), key events (KEs), and adverse outcomes (AOs). Among them, the MIEs were discussed in combination with the structure-activity relationship due to the correlation between toxicity and physical and chemical properties of GFNs. Based on the collection of information regarding MIEs, Kes, and AOs in addition to upstream and downstream causal extrapolation, the AOP framework for GFN-induced pulmonary toxicity was developed, highlighting the possible mechanisms of GFN-induced lung damage. This review intended to combine AOP with classic toxicological methods with a view to rapidly and accurately establishing a nanotoxicology infrastructure so as to contribute to public health risk assessment strategies through iteration from and animal models up to the population level.
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Affiliation(s)
- Xiaomeng Ding
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China
| | - Yuepu Pu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China
| | - Meng Tang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China
| | - Ting Zhang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China.
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17
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Gungordu Er S, Edirisinghe M, Tabish TA. Graphene-Based Nanocomposites as Antibacterial, Antiviral and Antifungal Agents. Adv Healthc Mater 2023; 12:e2201523. [PMID: 36511355 PMCID: PMC11468666 DOI: 10.1002/adhm.202201523] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 09/08/2022] [Indexed: 12/15/2022]
Abstract
Over the past decade, there have been many interesting studies in the scientific literature about the interaction of graphene-based polymeric nanocomposites with microorganisms to tackle antimicrobial resistance. These studies have reported variable intensities of biocompatibility and selectivity for the nanocomposites toward a specific strain, but it is widely believed that graphene nanocomposites have antibacterial, antiviral, and antifungal activities. Such antibacterial activity is due to several mechanisms by which graphene nanocomposites can act on cells including stimulating oxidative stress; disrupting membranes due to sharp edges; greatly changing core structure mechanical strength and coarseness. However, the underlying mechanisms of graphene nanocomposites as antiviral and antifungal agents remain relatively scarce. In this review, recent advances in the synthesis, functional tailoring, and antibacterial, antiviral, and antifungal applications of graphene nanocomposites are summarized. The synthesis of graphene materials and graphene-based polymeric nanocomposites with techniques such as pressurized gyration, electrospinning, chemical vapor deposition, and layer-by-layer self-assembly is first introduced. Then, the antimicrobial mechanisms of graphene membranes are presented and demonstrated typical in vitro and in vivo studies on the use of graphene nanocomposites for antibacterial, antiviral, and antifungal applications. Finally, the review describes the biosafety, current limitations, and potential of antimicrobial graphene-based nanocomposites.
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Affiliation(s)
- Seda Gungordu Er
- Department of Mechanical EngineeringUniversity College LondonTorrington PlaceLondonWC1E 7JEUK
| | - Mohan Edirisinghe
- Department of Mechanical EngineeringUniversity College LondonTorrington PlaceLondonWC1E 7JEUK
| | - Tanveer A. Tabish
- Department of Mechanical EngineeringUniversity College LondonTorrington PlaceLondonWC1E 7JEUK
- Radcliffe Department of MedicineUniversity of OxfordOld RoadOxfordOX3 7BNUK
- Department of Engineering ScienceUniversity of OxfordBegbroke Science ParkOxfordOX5 1PFUK
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18
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Mikheev IV, Byvsheva SM, Sozarukova MM, Kottsov SY, Proskurnina EV, Proskurnin MA. High-Throughput Preparation of Uncontaminated Graphene-Oxide Aqueous Dispersions with Antioxidant Properties by Semi-Automated Diffusion Dialysis. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4159. [PMID: 36500782 PMCID: PMC9739863 DOI: 10.3390/nano12234159] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/17/2022] [Accepted: 11/21/2022] [Indexed: 06/17/2023]
Abstract
A semi-automated diffusion-dialysis purification procedure is proposed for the preparation of uncontaminated graphene oxide (GO) aqueous dispersions. The purification process is integrated with analytical-signal processing to control the purification degree online by several channels: oxidation-reduction potential, conductivity, and absorbance. This approach reduces the amounts of reagents for chemical treatment during dialysis. The total transition metal (Mn and Ti) content was reduced to a sub-ppb level (assessed by slurry nebulization in inductively coupled plasma optical atomic emission spectroscopy). Purified aqueous GO samples possess good stability for about a year with a zeta-potential of ca. -40 mV and a lateral size of ca. sub-µm. Purified GO samples showed increased antioxidant properties (up to five times compared to initial samples according to chemiluminometry by superoxide-radical (O2-) generated in situ from xanthine and xanthine oxidase with the lucigenin probe) and significantly decreased peroxidase-like activity (assessed by the H2O2-L-012 system).
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Affiliation(s)
- Ivan V. Mikheev
- Department of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russia
| | - Sofiya M. Byvsheva
- Department of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russia
| | - Madina M. Sozarukova
- Department of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russia
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Moscow 117901, Russia
| | - Sergey Yu. Kottsov
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Moscow 117901, Russia
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19
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Lafuente-Merchan M, Ruiz-Alonso S, García-Villén F, Zabala A, de Retana AMO, Gallego I, Saenz-Del-Burgo L, Pedraz JL. 3D Bioprinted Hydroxyapatite or Graphene Oxide Containing Nanocellulose-Based Scaffolds for Bone Regeneration. Macromol Biosci 2022; 22:e2200236. [PMID: 35981208 DOI: 10.1002/mabi.202200236] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 07/26/2022] [Indexed: 12/25/2022]
Abstract
Bone tissue is usually damaged after big traumas, tumors, and increasing aging-related diseases such as osteoporosis and osteoarthritis. Current treatments are based on implanting grafts, which are shown to have several inconveniences. In this regard, tissue engineering through the 3D bioprinting technique has arisen to manufacture structures that would be a feasible therapeutic option for bone regenerative medicine. In this study, nanocellulose-alginate (NC-Alg)-based bioink is improved by adding two different inorganic components such as hydroxyapatite (HAP) and graphene oxide (GO). First, ink rheological properties and biocompatibility are evaluated as well as the influence of the sterilization process on them. Then, scaffolds are characterized. Finally, biological studies of embedded murine D1 mesenchymal stem cells engineered to secrete erythropoietin are performed. Results show that the addition of both HAP and GO prevents NC-Alg ink from viscosity lost in the sterilization process. However, GO is reduced due to short cycle autoclave sterilization, making it incompatible with this ink. In addition, HAP and GO have different influences on scaffold architecture and surface as well as in swelling capacity. Scaffolds mechanics, as well as cell viability and functionality, are promoted by both elements addition. Additionally, GO demonstrates an enhanced bone differentiation capacity.
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Affiliation(s)
- Markel Lafuente-Merchan
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country (UPV/EHU)., Paseo de la Universidad 7, Vitoria-Gasteiz, 01006, Spain.,Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN). Health Institute Carlos III., Paseo de la Universidad 7, Vitoria-Gasteiz, 01006, Spain.,Bioaraba, NanoBioCel Resarch Group, Vitoria-Gasteiz, 01009, Spain
| | - Sandra Ruiz-Alonso
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country (UPV/EHU)., Paseo de la Universidad 7, Vitoria-Gasteiz, 01006, Spain.,Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN). Health Institute Carlos III., Paseo de la Universidad 7, Vitoria-Gasteiz, 01006, Spain.,Bioaraba, NanoBioCel Resarch Group, Vitoria-Gasteiz, 01009, Spain
| | - Fátima García-Villén
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country (UPV/EHU)., Paseo de la Universidad 7, Vitoria-Gasteiz, 01006, Spain.,Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN). Health Institute Carlos III., Paseo de la Universidad 7, Vitoria-Gasteiz, 01006, Spain.,Bioaraba, NanoBioCel Resarch Group, Vitoria-Gasteiz, 01009, Spain
| | - Alaitz Zabala
- Mechanical and Industrial Manufacturing Department, Mondragon Unibertsitatea, Loramendi 4, Mondragón, 20500, Spain
| | - Ana M Ochoa de Retana
- Department of Organic Chemistry I, Faculty of Pharmacy and Lascaray Research Center, University of the Basque Country (UPV/EHU), Paseo de la Universidad 7, Vitoria, 01006, Spain
| | - Idoia Gallego
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country (UPV/EHU)., Paseo de la Universidad 7, Vitoria-Gasteiz, 01006, Spain.,Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN). Health Institute Carlos III., Paseo de la Universidad 7, Vitoria-Gasteiz, 01006, Spain.,Bioaraba, NanoBioCel Resarch Group, Vitoria-Gasteiz, 01009, Spain
| | - Laura Saenz-Del-Burgo
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country (UPV/EHU)., Paseo de la Universidad 7, Vitoria-Gasteiz, 01006, Spain.,Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN). Health Institute Carlos III., Paseo de la Universidad 7, Vitoria-Gasteiz, 01006, Spain.,Bioaraba, NanoBioCel Resarch Group, Vitoria-Gasteiz, 01009, Spain
| | - Jose Luis Pedraz
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country (UPV/EHU)., Paseo de la Universidad 7, Vitoria-Gasteiz, 01006, Spain.,Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN). Health Institute Carlos III., Paseo de la Universidad 7, Vitoria-Gasteiz, 01006, Spain.,Bioaraba, NanoBioCel Resarch Group, Vitoria-Gasteiz, 01009, Spain
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20
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de Luna LAV, Loret T, Fordham A, Arshad A, Drummond M, Dodd A, Lozano N, Kostarelos K, Bussy C. Lung recovery from DNA damage induced by graphene oxide is dependent on size, dose and inflammation profile. Part Fibre Toxicol 2022; 19:62. [PMID: 36131347 PMCID: PMC9490925 DOI: 10.1186/s12989-022-00502-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 09/06/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND A key aspect of any new material safety assessment is the evaluation of their in vivo genotoxicity. Graphene oxide (GO) has been studied for many promising applications, but there are remaining concerns about its safety profile, especially after inhalation. Herein we tested whether GO lateral dimension, comparing micrometric (LGO) and nanometric (USGO) GO sheets, has a role in the formation of DNA double strand breaks in mouse lungs. We used spatial resolution and differential cell type analysis to measure DNA damages in both epithelial and immune cells, after either single or repeated exposure. RESULTS GO induced DNA damages were size and dose dependent, in both exposure scenario. After single exposure to a high dose, both USGO and LGO induced significant DNA damage in the lung parenchyma, but only during the acute phase response (p < 0.05 for USGO; p < 0.01 for LGO). This was followed by a fast lung recovery at day 7 and 28 for both GOs. When evaluating the chronic impact of GO after repeated exposure, only a high dose of LGO induced long-term DNA damages in lung alveolar epithelia (at 84 days, p < 0.05). Regardless of size, low dose GO did not induce any significant DNA damage after repeated exposure. A multiparametric correlation analysis of our repeated exposure data revealed that transient or persistent inflammation and oxidative stress were associated to either recovery or persistent DNA damages. For USGO, recovery from DNA damage was correlated to efficient recovery from acute inflammation (i.e., significant secretion of SAA3, p < 0.001; infiltration of neutrophils, p < 0.01). In contrast, the persistence of LGO in lungs was associated to a long-lasting presence of multinucleated macrophages (up to 84 days, p < 0.05), an underlying inflammation (IL-1α secretion up to 28 days, p < 0.05) and the presence of persistent DNA damages at 84 days. CONCLUSIONS Overall these results highlight the importance of the exposure scenario used. We showed that LGO was more genotoxic after repeated exposure than single exposure due to persistent lung inflammation. These findings are important in the context of human health risk assessment and toward establishing recommendations for a safe use of graphene based materials in the workplace.
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Affiliation(s)
- Luis Augusto Visani de Luna
- Nanomedicine Lab 2.0, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK.,National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK.,Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK
| | - Thomas Loret
- Nanomedicine Lab 2.0, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK.,National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK.,Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK
| | - Alexander Fordham
- Nanomedicine Lab 2.0, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK.,National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK.,Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK
| | - Atta Arshad
- Nanomedicine Lab 2.0, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK.,National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK.,Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK
| | - Matthew Drummond
- Nanomedicine Lab 2.0, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK.,National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK
| | - Abbie Dodd
- Nanomedicine Lab 2.0, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK.,National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK
| | - Neus Lozano
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193, Barcelona, Spain
| | - Kostas Kostarelos
- Nanomedicine Lab 2.0, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK.,National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK.,Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193, Barcelona, Spain
| | - Cyrill Bussy
- Nanomedicine Lab 2.0, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK. .,National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK. .,Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK.
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21
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Chortarea S, Kuru OC, Netkueakul W, Pelin M, Keshavan S, Song Z, Ma B, Gómes J, Abalos EV, Luna LAVD, Loret T, Fordham A, Drummond M, Kontis N, Anagnostopoulos G, Paterakis G, Cataldi P, Tubaro A, Galiotis C, Kinloch I, Fadeel B, Bussy C, Kostarelos K, Buerki-Thurnherr T, Prato M, Bianco A, Wick P. Hazard assessment of abraded thermoplastic composites reinforced with reduced graphene oxide. JOURNAL OF HAZARDOUS MATERIALS 2022; 435:129053. [PMID: 35650742 DOI: 10.1016/j.jhazmat.2022.129053] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 04/22/2022] [Accepted: 04/29/2022] [Indexed: 06/15/2023]
Abstract
Graphene-related materials (GRMs) are subject to intensive investigations and considerable progress has been made in recent years in terms of safety assessment. However, limited information is available concerning the hazard potential of GRM-containing products such as graphene-reinforced composites. In the present study, we conducted a comprehensive investigation of the potential biological effects of particles released through an abrasion process from reduced graphene oxide (rGO)-reinforced composites of polyamide 6 (PA6), a widely used engineered thermoplastic polymer, in comparison to as-produced rGO. First, a panel of well-established in vitro models, representative of the immune system and possible target organs such as the lungs, the gut, and the skin, was applied. Limited responses to PA6-rGO exposure were found in the different in vitro models. Only as-produced rGO induced substantial adverse effects, in particular in macrophages. Since inhalation of airborne materials is a key occupational concern, we then sought to test whether the in vitro responses noted for these materials would translate into adverse effects in vivo. To this end, the response at 1, 7 and 28 days after a single pulmonary exposure was evaluated in mice. In agreement with the in vitro data, PA6-rGO induced a modest and transient pulmonary inflammation, resolved by day 28. In contrast, rGO induced a longer-lasting, albeit moderate inflammation that did not lead to tissue remodeling within 28 days. Taken together, the present study suggests a negligible impact on human health under acute exposure conditions of GRM fillers such as rGO when released from composites at doses expected at the workplace.
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Affiliation(s)
- Savvina Chortarea
- Swiss Federal Laboratories for Materials Science and Technology (Empa), Laboratory for Particles-Biology Interactions, 9014 St. Gallen, Switzerland
| | - Ogul Can Kuru
- Swiss Federal Laboratories for Materials Science and Technology (Empa), Laboratory for Particles-Biology Interactions, 9014 St. Gallen, Switzerland
| | - Woranan Netkueakul
- Swiss Federal Laboratories for Materials Science and Technology (Empa), Laboratory for Particles-Biology Interactions, 9014 St. Gallen, Switzerland
| | - Marco Pelin
- Department of Life Sciences, University of Trieste, 34127 Trieste, Italy
| | - Sandeep Keshavan
- Nanosafety & Nanomedicine Laboratory, Institute of Environmental Medicine, Karolinska Institutet, 177 77 Stockholm, Sweden
| | - Zhengmei Song
- CNRS, Immunology, Immunopathology and Therapeutic Chemistry, UPR3572, University of Strasbourg, ISIS, 67000 Strasbourg, France
| | - Baojin Ma
- CNRS, Immunology, Immunopathology and Therapeutic Chemistry, UPR3572, University of Strasbourg, ISIS, 67000 Strasbourg, France
| | - Julio Gómes
- Avanzare Innovacion Tecnologica S.L. 26370 Navarrete, Spain
| | - Elvira Villaro Abalos
- Instituto de Tecnologías Químicas de La Rioja (InterQuímica), 26370 Navarrete, Spain
| | - Luis Augusto Visani de Luna
- Nanomedicine Lab, Faculty of Biology, Medicine & Health, University of Manchester, Manchester M13 9PT, United Kingdom; National Graphene Institute, University of Manchester, Manchester M13 9PL, United Kingdom; Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PL, United Kingdom
| | - Thomas Loret
- Nanomedicine Lab, Faculty of Biology, Medicine & Health, University of Manchester, Manchester M13 9PT, United Kingdom; National Graphene Institute, University of Manchester, Manchester M13 9PL, United Kingdom; Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PL, United Kingdom
| | - Alexander Fordham
- Nanomedicine Lab, Faculty of Biology, Medicine & Health, University of Manchester, Manchester M13 9PT, United Kingdom; National Graphene Institute, University of Manchester, Manchester M13 9PL, United Kingdom; Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PL, United Kingdom
| | - Matthew Drummond
- Nanomedicine Lab, Faculty of Biology, Medicine & Health, University of Manchester, Manchester M13 9PT, United Kingdom; National Graphene Institute, University of Manchester, Manchester M13 9PL, United Kingdom
| | - Nikolaos Kontis
- Institute of Chemical Engineering Sciences, Foundation of Research and Technology-Hellas (FORTH/ICE-HT), 26504 Patras, Greece
| | - George Anagnostopoulos
- Institute of Chemical Engineering Sciences, Foundation of Research and Technology-Hellas (FORTH/ICE-HT), 26504 Patras, Greece
| | - George Paterakis
- Institute of Chemical Engineering Sciences, Foundation of Research and Technology-Hellas (FORTH/ICE-HT), 26504 Patras, Greece
| | - Pietro Cataldi
- National Graphene Institute, University of Manchester, Manchester M13 9PL, United Kingdom; Department of Materials, University of Manchester, Manchester M13 9PL, United Kingdom
| | - Aurelia Tubaro
- Department of Life Sciences, University of Trieste, 34127 Trieste, Italy
| | - Costas Galiotis
- Institute of Chemical Engineering Sciences, Foundation of Research and Technology-Hellas (FORTH/ICE-HT), 26504 Patras, Greece; Department of Chemical Engineering, University of Patras, 26504 Patras, Greece
| | - Ian Kinloch
- National Graphene Institute, University of Manchester, Manchester M13 9PL, United Kingdom; Department of Materials, University of Manchester, Manchester M13 9PL, United Kingdom
| | - Bengt Fadeel
- Nanosafety & Nanomedicine Laboratory, Institute of Environmental Medicine, Karolinska Institutet, 177 77 Stockholm, Sweden
| | - Cyrill Bussy
- Nanomedicine Lab, Faculty of Biology, Medicine & Health, University of Manchester, Manchester M13 9PT, United Kingdom; National Graphene Institute, University of Manchester, Manchester M13 9PL, United Kingdom; Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PL, United Kingdom
| | - Kostas Kostarelos
- Nanomedicine Lab, Faculty of Biology, Medicine & Health, University of Manchester, Manchester M13 9PT, United Kingdom; National Graphene Institute, University of Manchester, Manchester M13 9PL, United Kingdom; Catalan Institute of Nanoscience and Nanotechnology (ICN2), and Barcelona Institute of Science and Technology (BIST), Barcelona 08193, Spain
| | - Tina Buerki-Thurnherr
- Swiss Federal Laboratories for Materials Science and Technology (Empa), Laboratory for Particles-Biology Interactions, 9014 St. Gallen, Switzerland
| | - Maurizio Prato
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, 34127 Trieste, Italy; Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), 20014 Donostia San Sebastián, Spain; Basque Foundation for Science (IKERBASQUE), 48013 Bilbao, Spain
| | - Alberto Bianco
- CNRS, Immunology, Immunopathology and Therapeutic Chemistry, UPR3572, University of Strasbourg, ISIS, 67000 Strasbourg, France
| | - Peter Wick
- Swiss Federal Laboratories for Materials Science and Technology (Empa), Laboratory for Particles-Biology Interactions, 9014 St. Gallen, Switzerland.
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22
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Cavallo D, Ursini CL, Fresegna AM, Ciervo A, Boccuni F, Ferrante R, Tombolini F, Maiello R, Chiarella P, Buresti G, Del Frate V, Poli D, Andreoli R, Di Cristo L, Sabella S, Iavicoli S. A follow-up study on workers involved in the graphene production process after the introduction of exposure mitigation measures: evaluation of genotoxic and oxidative effects. Nanotoxicology 2022; 16:776-790. [PMID: 36427224 DOI: 10.1080/17435390.2022.2149359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
During nanomaterial (NM) production, workers could be exposed, particularly by inhalation, to NMs and other chemicals used in the synthesis process, so it is important to have suitable biomarkers to monitor potential toxic effects. Aim of this study was to evaluate the effectiveness of the introduction of exposure mitigation measures on workers unintentionally exposed to graphene co-pollutants during production process monitoring the presumable reduction of workplace NM contamination and of early genotoxic and oxidative effects previously found on these workers. We used Buccal Micronucleus Cytome (BMCyt) assay and Fpg-comet test, resulted the most sensitive biomarkers on our first biomonitoring work, to measure the genotoxic effects. We also detected urinary oxidized nucleic acid bases 8-oxoGua, 8-oxoGuo and 8-oxodGuo to evaluate oxidative damage. The genotoxic and oxidative effects were assessed on the same graphene workers (N = 6) previously studied, comparing the results with those found in the first biomonitoring and with the control group (N = 11). This was achieved 6 months after the installation of a special filter hood (where to perform the phases at higher risk of NM emission) and the improvement of environmental and personal protective equipment. Particle number concentration decreased after the mitigation measures. We observed reduction of Micronucleus (MN) frequency and oxidative DNA damage and increase of 8-oxodGuo excretion compared to the first biomonitoring. These results, although limited by the small subject number, showed the efficacy of adopted exposure mitigation measures and the suitability of used sensitive and noninvasive biomarkers to bio-monitor over time workers involved in graphene production process.
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Affiliation(s)
- Delia Cavallo
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Italian Workers' Compensation Authority-INAIL, Rome, Italy
| | - Cinzia Lucia Ursini
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Italian Workers' Compensation Authority-INAIL, Rome, Italy
| | - Anna Maria Fresegna
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Italian Workers' Compensation Authority-INAIL, Rome, Italy
| | - Aureliano Ciervo
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Italian Workers' Compensation Authority-INAIL, Rome, Italy
| | - Fabio Boccuni
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Italian Workers' Compensation Authority-INAIL, Rome, Italy
| | - Riccardo Ferrante
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Italian Workers' Compensation Authority-INAIL, Rome, Italy
| | - Francesca Tombolini
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Italian Workers' Compensation Authority-INAIL, Rome, Italy
| | - Raffaele Maiello
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Italian Workers' Compensation Authority-INAIL, Rome, Italy
| | - Pieranna Chiarella
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Italian Workers' Compensation Authority-INAIL, Rome, Italy
| | - Giuliana Buresti
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Italian Workers' Compensation Authority-INAIL, Rome, Italy
| | - Valentina Del Frate
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Italian Workers' Compensation Authority-INAIL, Rome, Italy
| | - Diana Poli
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Italian Workers' Compensation Authority-INAIL, Rome, Italy
| | - Roberta Andreoli
- Department of Medicine and Surgery, Laboratory of Industrial Toxicology, University of Parma, Parma, Italy
| | | | | | - Sergio Iavicoli
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Italian Workers' Compensation Authority-INAIL, Rome, Italy
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23
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Naikoo GA, Arshad F, Almas M, Hassan IU, Pedram MZ, Aljabali AA, Mishra V, Serrano-Aroca Á, Birkett M, Charbe NB, Goyal R, Negi P, El-Tanani M, Tambuwala MM. 2D materials, synthesis, characterization and toxicity: A critical review. Chem Biol Interact 2022; 365:110081. [PMID: 35948135 DOI: 10.1016/j.cbi.2022.110081] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 07/21/2022] [Accepted: 07/27/2022] [Indexed: 11/16/2022]
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24
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CeO2-Zn Nanocomposite Induced Superoxide, Autophagy and a Non-Apoptotic Mode of Cell Death in Human Umbilical-Vein-Derived Endothelial (HUVE) Cells. TOXICS 2022; 10:toxics10050250. [PMID: 35622663 PMCID: PMC9147432 DOI: 10.3390/toxics10050250] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 05/12/2022] [Accepted: 05/13/2022] [Indexed: 02/01/2023]
Abstract
In this study, a nanocomposite of cerium oxide-zinc (CeO2-Zn; 26 ± 11 nm) based on the antioxidant rare-earth cerium oxide (CeO2) nanoparticles (NPs) with the modifier zinc (Zn) was synthesized by sintering method and characterized. Its bio-response was examined in human umbilical-vein-derived endothelial (HUVE) cells to get insight into the components of vascular system. While NPs of CeO2 did not significantly alter cell viability up to a concentration of 200 µg/mL for a 24 h exposure, 154 ± 6 µg/mL of nanocomposite CeO2-Zn induced 50% cytotoxicity. Mechanism of cytotoxicity occurring due to nanocomposite by its Zn content was compared by choosing NPs of ZnO, possibly the closest nanoparticulate form of Zn. ZnO NPs lead to the induction of higher reactive oxygen species (ROS) (DCF-fluorescence), steeper depletion in antioxidant glutathione (GSH) and a greater loss of mitochondrial membrane potential (MMP) as compared to that induced by CeO2-Zn nanocomposite. Nanocomposite of CeO2-Zn, on the other hand, lead to significant higher induction of superoxide radical (O2•−, DHE fluorescence), nitric oxide (NO, determined by DAR-2 imaging and Griess reagent) and autophagic vesicles (determined by Lysotracker and monodansylcadeverine probes) as compared to that caused by ZnO NP treatment. Moreover, analysis after triple staining (by annexin V-FITC, PI, and Hoechst) conducted at their respective IC50s revealed an apoptosis mode of cell death due to ZnO NPs, whereas CeO2-Zn nanocomposite induced a mechanism of cell death that was significantly different from apoptosis. Our findings on advanced biomarkers such as autophagy and mode of cell death suggested the CeO2-Zn nanocomposite might behave as independent nanostructure from its constituent ones. Since nanocomposites can behave independently of their constituent NPs/elements, by creating nanocomposites, NP versatility can be increased manifold by just manipulating existing NPs. Moreover, data in this study can furnish early mechanistic insight about the potential damage that could occur in the integrity of vascular systems.
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25
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Pancewicz J, Niklińska WE, Chlanda A. Flake Graphene-Based Nanomaterial Approach for Triggering a Ferroptosis as an Attractive Theranostic Outlook for Tackling Non-Small Lung Cancer: A Mini Review. MATERIALS (BASEL, SWITZERLAND) 2022; 15:3456. [PMID: 35629488 PMCID: PMC9143918 DOI: 10.3390/ma15103456] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 05/05/2022] [Accepted: 05/09/2022] [Indexed: 12/15/2022]
Abstract
Lung cancer is a highly aggressive neoplasm that is now a leading cause of cancer death worldwide. One of the major approaches for killing cancer cells is related with activation of apoptotic cell death with anti-cancer drugs. However, the efficiency of apoptosis induction in tumors is limited. Consequently, the development of other forms of non-apoptotic cell death is up to date challenge for scientists worldwide. This situation motivated us to define the aim of this mini-review: gathering knowledge regarding ferroptosis-newly defined programmed cell death process characterized by the excessive accumulation of iron-and combining it with yet another interesting nanomaterial-based graphene approach. In this manuscript, we presented brief information about non-small lung cancer and ferroptosis, followed by a section depicting the key-features of graphene-based nanomaterials influencing their biologically relevant properties.
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Affiliation(s)
- Joanna Pancewicz
- Department of Histology and Embryology, Medical University in Bialystok, Waszyngtona 13, 15-269 Białystok, Poland; (J.P.); (W.E.N.)
| | - Wiesława Ewa Niklińska
- Department of Histology and Embryology, Medical University in Bialystok, Waszyngtona 13, 15-269 Białystok, Poland; (J.P.); (W.E.N.)
| | - Adrian Chlanda
- Graphene and Composites Research Group, Łukasiewicz Research Network—Institute of Microelectronics and Photonics, al. Lotników 32/46, 02-668 Warszawa, Poland
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26
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Rapid and efficient testing of the toxicity of graphene-related materials in primary human lung cells. Sci Rep 2022; 12:7664. [PMID: 35538131 PMCID: PMC9088729 DOI: 10.1038/s41598-022-11840-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Accepted: 04/28/2022] [Indexed: 11/25/2022] Open
Abstract
Graphene and its derivative materials are manufactured by numerous companies and research laboratories, during which processes they can come into contact with their handlers' physiological barriers—for instance, their respiratory system. Despite their potential toxicity, these materials have even been used in face masks to prevent COVID-19 transmission. The increasingly widespread use of these materials requires the design and implementation of appropriate, versatile, and accurate toxicological screening methods to guarantee their safety. Murine models are adequate, though limited when exploring different doses and lengths of exposure—as this increases the number of animals required, contrary to the Three R's principle in animal experimentation. This article proposes an in vitro model using primary, non-transformed normal human bronchial epithelial (NHBE) cells as an alternative to the most widely used model to date, the human lung tumor cell line A549. The model has been tested with three graphene derivatives—graphene oxide (GO), few-layer graphene (FLG), and small FLG (sFLG). We observed a cytotoxic effect (necrosis and apoptosis) at early (6- and 24-h) exposures, which intensified after seven days of contact between cells and the graphene-related materials (GRMs)—with cell death reaching 90% after a 5 µg/mL dose. A549 cells are more resistant to necrosis and apoptosis, yielding values less than half of NHBE cells at low concentrations of GRMs (between 0.05 and 5 µg/mL). Indeed, GRM-induced cell death in NHBE cells is comparable to that induced by toxic compounds such as diesel exhaust particles on the same cell line. We propose NHBE as a suitable model to test GRM-induced toxicity, allowing refinement of the dose concentrations and exposure timings for better-designed in vivo mouse assays.
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27
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Maji S, Yu S, Choi E, Lim JW, Jang D, Kim GY, Kim S, Lee H, Kim DH. Anisotropic Plasmonic Gold Nanorod-Indocyanine Green@Reduced Graphene Oxide-Doxorubicin Nanohybrids for Image-Guided Enhanced Tumor Theranostics. ACS OMEGA 2022; 7:15186-15199. [PMID: 35572761 PMCID: PMC9089692 DOI: 10.1021/acsomega.2c01306] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 03/16/2022] [Indexed: 06/15/2023]
Abstract
The unique physicochemical and localized surface plasmon resonance assets of gold nanorods (GNRs) have offered combined cancer treatments with real-time diagnosis by integrating diverse theragnostic modalities into a single nanoplatform. In this work, a unique multifunctional nanohybrid material based on GNRs was designed for in vitro and in vivo tumor imaging along with synergistic and combinatorial therapy of tumor. The hybrid material with size less than 100 nm was achieved by embedding indocyanine green (ICG) on mesoporous silica-coated GNRs with further wrapping of reduced graphene oxide (rGO) and then attached with doxorubicin (DOX) and polyethylene glycol. The nanohybrid unveiled noteworthy stability and competently protected the embedded ICG from further aggregation, photobleaching, and nucleophilic attack by encapsulation of GNRs-ICG with rGO. Such combination of GNRs-ICG with rGO and DOX served as a real-time near-infrared (NIR) contrast imaging agent for cancer diagnosis. The hybrid material exhibits high NIR absorption property along with three destined capabilities, such as, nanozymatic activity, photothermal activity, and an excellent drug carrier for drug delivery. The integrated properties of the nanohybrid were then utilized for the triple mode of combined therapeutics of tumor cells, through synergistic catalytic therapy and chemotherapy with combinatorial photothermal therapy to achieve the maximum cancer killing efficiency. It is assumed that the assimilated multimodal imaging and therapeutic capability in single nanoparticle platform is advantageous for future practical applications in cancer diagnosis, therapy, and molecular imaging.
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Affiliation(s)
- Swarup
Kumar Maji
- Department
of Chemistry, Khatra Adibasi Mahavidyalaya, Khatra 722140, West Bengal, India
- Department
of Chemistry and Nano Science, Ewha Womans
University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Republic of Korea
| | - Subin Yu
- Department
of Chemistry and Nano Science, Ewha Womans
University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Republic of Korea
| | - Eunshil Choi
- Chemical
and Biological Integrative Research Center, Korea Institute of Science and Technology, 5 Hwarang-ro 14-Gil, Seongbuk-gu, Seoul 02792, Republic
of Korea
| | - Ju Won Lim
- Department
of Chemistry and Nano Science, Ewha Womans
University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Republic of Korea
| | - Dohyub Jang
- Chemical
and Biological Integrative Research Center, Korea Institute of Science and Technology, 5 Hwarang-ro 14-Gil, Seongbuk-gu, Seoul 02792, Republic
of Korea
- Department
of Biomicrosystem Technology, 145 Anam-ro, Seongbuk-gu, Korea University, Seoul 02841, Republic
of Korea
| | - Ga-young Kim
- Chemical
and Biological Integrative Research Center, Korea Institute of Science and Technology, 5 Hwarang-ro 14-Gil, Seongbuk-gu, Seoul 02792, Republic
of Korea
| | - Sehoon Kim
- Chemical
and Biological Integrative Research Center, Korea Institute of Science and Technology, 5 Hwarang-ro 14-Gil, Seongbuk-gu, Seoul 02792, Republic
of Korea
- KU-KIST Graduate
School of Converging Science and Technology, Korea University, Seoul 02841, Republic of Korea
| | - Hyukjin Lee
- College
of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul 03760, Republic
of Korea
| | - Dong Ha Kim
- Department
of Chemistry and Nano Science, Ewha Womans
University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Republic of Korea
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28
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Domanico M, Fukuto A, Tran LM, Bustamante JM, Edwards PC, Pinkerton KE, Thomasy SM, Van Winkle LS. Cytotoxicity of 2D engineered nanomaterials in pulmonary and corneal epithelium. NANOIMPACT 2022; 26:100404. [PMID: 35560287 PMCID: PMC9205178 DOI: 10.1016/j.impact.2022.100404] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 04/18/2022] [Accepted: 04/26/2022] [Indexed: 05/28/2023]
Abstract
Two-dimensional (2D) engineered nanomaterials are widely used in consumer and industrial goods due to their unique chemical and physical characteristics. Engineered nanomaterials are incredibly small and capable of being aerosolized during manufacturing, with the potential for biological interaction at first-contact sites such as the eye and lung. The unique properties of 2D nanomaterials that make them of interest to many industries may also cause toxicity towards epithelial cells. Using murine and human respiratory epithelial cell culture models, we tested the cytotoxicity of eight 2D engineered nanomaterials: graphene (110 nm), graphene oxide (2 um), graphene oxide (400 nm), reduced graphene oxide (2 um), reduced graphene oxide (400 nm), partially reduced graphene oxide (400 nm), molybdenum disulfide (400 nm), and hexagonal boron nitride (150 nm). Non-graphene nanomaterials were also tested in human corneal epithelial cells for ocular epithelial cytotoxicity. Hexagonal boron nitride was found to be cytotoxic in mouse tracheal, human alveolar, and human corneal epithelial cells. Hexagonal boron nitride was also tested for inhibition of wound healing in alveolar epithelial cells; no inhibition was seen at sub-cytotoxic doses. Nanomaterials should be considered with care before use, due to specific regional cytotoxicity that also varies by cell type. Supported by U01ES027288 and T32HL007013 and T32ES007059.
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Affiliation(s)
- Morgan Domanico
- Center for Health and the Environment, University of California-Davis, Davis, CA, USA
| | - Atsuhiko Fukuto
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California-Davis, Davis, CA, USA; Department of Ophthalmology and Visual Sciences, Graduate School of Biomedical Sciences, Hiroshima University, Hiroshima, Japan
| | - Lisa M Tran
- Center for Health and the Environment, University of California-Davis, Davis, CA, USA
| | | | - Patricia C Edwards
- Center for Health and the Environment, University of California-Davis, Davis, CA, USA
| | - Kent E Pinkerton
- Center for Health and the Environment, University of California-Davis, Davis, CA, USA; Department of Anatomy, Physiology and Cell Biology, School of Veterinary Medicine, University of California-Davis, Davis, CA, USA
| | - Sara M Thomasy
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California-Davis, Davis, CA, USA; Department of Ophthalmology & Vision Science, School of Medicine, University of California-Davis, Davis, CA, USA
| | - Laura S Van Winkle
- Center for Health and the Environment, University of California-Davis, Davis, CA, USA; Department of Anatomy, Physiology and Cell Biology, School of Veterinary Medicine, University of California-Davis, Davis, CA, USA.
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Progress in the Development of Graphene-Based Biomaterials for Tissue Engineering and Regeneration. MATERIALS 2022; 15:ma15062164. [PMID: 35329615 PMCID: PMC8955908 DOI: 10.3390/ma15062164] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Revised: 03/10/2022] [Accepted: 03/11/2022] [Indexed: 12/16/2022]
Abstract
Over the last few decades, tissue engineering has become an important technology for repairing and rebuilding damaged tissues and organs. The scaffold plays an important role and has become a hot pot in the field of tissue engineering. It has sufficient mechanical and biochemical properties and simulates the structure and function of natural tissue to promote the growth of cells inward. Therefore, graphene-based nanomaterials (GBNs), such as graphene and graphene oxide (GO), have attracted wide attention in the field of biomedical tissue engineering because of their unique structure, large specific surface area, good photo-thermal effect, pH response and broad-spectrum antibacterial properties. In this review, the structure and properties of typical GBNs are summarized, the progress made in the development of GBNs in soft tissue engineering (including skin, muscle, nerve and blood vessel) are highlighted, the challenges and prospects of the application of GBNs in soft tissue engineering have prospected.
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Ivanoska-Dacikj A, Makreski P, Geskovski N, Karbowniczek J, Stachewicz U, Novkovski N, Tanasić J, Ristić I, Bogoeva-Gaceva G. Electrospun PEO/rGO Scaffolds: The Influence of the Concentration of rGO on Overall Properties and Cytotoxicity. Int J Mol Sci 2022; 23:ijms23020988. [PMID: 35055172 PMCID: PMC8779283 DOI: 10.3390/ijms23020988] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 01/09/2022] [Accepted: 01/13/2022] [Indexed: 01/27/2023] Open
Abstract
Reduced graphene oxide (rGO) is one of the graphene derivatives that can be employed to engineer bioactive and/or electroactive scaffolds. However, the influence of its low and especially high concentrations on scaffolds’ overall properties and cytotoxicity has yet to be explored. In this study, polyethylene oxide (PEO)-based scaffolds containing from 0.1 to 20 wt% rGO were obtained by electrospinning. Morphological, thermal and electrical properties of the scaffolds were characterized by SEM, Raman spectroscopy, XRD, DSC and electrical measurements. The diameter of the fibers decreased from 0.52 to 0.19 µm as the concentration of rGO increased from 0.1 wt% to 20 wt%. The presence of rGO above the percolation threshold (5.7 wt%) resulted in a significantly reduced electrical resistivity of the scaffolds. XRD and Raman analysis revealed delamination of the graphene layers (interlayer spacing increased from 0.36 nm to 0.40–0.41 nm), and exfoliation of rGO was detected for the samples with an rGO concentration lower than 1 wt%. In addition, an evident trend of increasing cell viability as a function of the rGO concentration was evidenced. The obtained results can serve as further guidance for the judicious selection of the rGO content incorporated into the PEO matrix for constructing electroactive scaffolds.
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Affiliation(s)
- Aleksandra Ivanoska-Dacikj
- Research Centre for Environment and Materials, Macedonian Academy of Sciences and Arts, Krste Misirkov 2, 1000 Skopje, North Macedonia; (N.N.); (G.B.-G.)
- Correspondence:
| | - Petre Makreski
- Institute of Chemistry, Faculty of Natural Sciences and Mathematics, Ss. Cyril and Methodius University in Skopje, Arhimedova 5, 1000 Skopje, North Macedonia;
| | - Nikola Geskovski
- Institute of Pharmaceutical Technology, Faculty of Pharmacy, Ss. Cyril and Methodius University in Skopje, Majka Tereza 47, 1000 Skopje, North Macedonia;
| | - Joanna Karbowniczek
- Faculty of Metals Engineering and Industrial Computer Science, AGH University of Science and Technology, al. A. Mickiewicza 30, 30-059 Cracow, Poland; (J.K.); (U.S.)
| | - Urszula Stachewicz
- Faculty of Metals Engineering and Industrial Computer Science, AGH University of Science and Technology, al. A. Mickiewicza 30, 30-059 Cracow, Poland; (J.K.); (U.S.)
| | - Nenad Novkovski
- Research Centre for Environment and Materials, Macedonian Academy of Sciences and Arts, Krste Misirkov 2, 1000 Skopje, North Macedonia; (N.N.); (G.B.-G.)
- Institute of Physics, Faculty of Natural Science and Mathematics, Ss. Cyril and Methodius University in Skopje, Arhimedova 3, 1000 Skopje, North Macedonia
| | - Jelena Tanasić
- Faculty of Technology, University of Novi Sad, Bulevar cara Lazara 1, 21000 Novi Sad, Serbia; (J.T.); (I.R.)
| | - Ivan Ristić
- Faculty of Technology, University of Novi Sad, Bulevar cara Lazara 1, 21000 Novi Sad, Serbia; (J.T.); (I.R.)
| | - Gordana Bogoeva-Gaceva
- Research Centre for Environment and Materials, Macedonian Academy of Sciences and Arts, Krste Misirkov 2, 1000 Skopje, North Macedonia; (N.N.); (G.B.-G.)
- Faculty of Technology and Metallurgy, Ss. Cyril and Methodius University in Skopje, Rugjer Bošković 16, 1000 Skopje, North Macedonia
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31
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Achawi S, Huot L, Nesslany F, Pourchez J, Simar S, Forest V, Feneon B. Exploring graphene-based materials' genotoxicity: inputs of a screening method. Nanotoxicology 2022; 15:1279-1294. [PMID: 35026124 DOI: 10.1080/17435390.2021.2018734] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Graphene-based materials (GBMs) are promising nanomaterials, and several innovations depend on their use. However, the assessment of their potential hazard must be carefully explored before entering any market. GBMs are indeed well-known to induce various biological impacts, including oxidative stress, which can potentially lead to DNA damage. Genotoxicity is a major endpoint for hazard assessment and has been explored for GBMs, but the available literature shows conflicting results. In this study, we assessed the genotoxicity of 13 various GBMs, one carbon black and one amorphous silica through a DNA damage response assay (using a human respiratory cell model, BEAS-2B). Concurrently, oxidative stress was assessed through a ROS production quantification (DCFH-DA assay using a murine macrophage model, RAW 264.7). We also performed a full physicochemical characterization of our samples to explore potential structure-activity relationships involving genotoxicity. We observed that surface oxidation appears linked to genotoxicity response and were able to distinguish several groups within our studied GBMs showing different genotoxicity results. Our findings highlight the necessity to individually consider each nanoform of GBMs since the tested samples showed various results and modes of action. We propose this study as a genotoxicity assessment using a high-throughput screening method and suggest few hypotheses concerning the genotoxicity mode of action of GBMs.
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Affiliation(s)
- Salma Achawi
- Mines Saint-Etienne, Univ Lyon, Univ Jean Monnet, Etablissement Français du Sang, INSERM, Sainbiose, France Saint-Etienne.,Manufacture Française des Pneumatiques Michelin, Michelin, France
| | - Ludovic Huot
- Genotoxicology Department, Institut Pasteur de Lille, Lille, France
| | - Fabrice Nesslany
- Genotoxicology Department, Institut Pasteur de Lille, Lille, France
| | - Jérémie Pourchez
- Mines Saint-Etienne, Univ Lyon, Univ Jean Monnet, Etablissement Français du Sang, INSERM, Sainbiose, France Saint-Etienne
| | - Sophie Simar
- Genotoxicology Department, Institut Pasteur de Lille, Lille, France
| | - Valérie Forest
- Mines Saint-Etienne, Univ Lyon, Univ Jean Monnet, Etablissement Français du Sang, INSERM, Sainbiose, France Saint-Etienne
| | - Bruno Feneon
- Manufacture Française des Pneumatiques Michelin, Michelin, France
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Jin L, Dou TT, Chen JY, Duan MX, Zhen Q, Wu HZ, Zhao YL. Sublethal toxicity of graphene oxide in Caenorhabditis elegans under multi-generational exposure. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 229:113064. [PMID: 34890989 DOI: 10.1016/j.ecoenv.2021.113064] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 12/02/2021] [Accepted: 12/05/2021] [Indexed: 06/13/2023]
Abstract
Nanomaterials have received increasing attentions owing to their potential hazards to the environment and human health; however, the multi-generational toxicity of graphene oxide under consecutive multi-generational exposure scenario still remains unclear. In the present study, Caenorhabditis elegans as an in vivo model organism was employed to explore the multi-generational toxicity effects of graphene oxide and the underlying mechanisms. Endpoints including development and lifespan, locomotion behaviors, defecation cycle, brood sizes, and oxidative response were evaluated in the parental generation and subsequent five filial generations. After continuous exposure for several generations, worms grew smaller and lived shorter. The locomotion behaviors were reduced across the filial generations and these reduced trends were following the impairments of locomotion-related neurons. In addition, the extended defecation cycles from the third filial generation were in consistency with the relative size reduction of the defecation related neuron. Simultaneously, the fertility function of the nematode was impaired under consecutive exposure as reduced brood sizes and oocytes numbers, increased apoptosis of germline, and aberrant expression of reproductive related genes ced-3, ced-4, ced-9, egl-1 and ced-13 were detected in exposed worms. Furthermore, the antioxidant enzyme, SOD-3 was significantly increased in the parent and filial generations. Thus, continuous multi-generational exposure to graphene oxide caused damage to the neuron development and the reproductive system in nematodes. These toxic effects could be reflected by indicators such as growth inhibition, shortened lifespan, and locomotion behavior impairment and induced oxidative response.
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Affiliation(s)
- Ling Jin
- School of Public Health, Bengbu Medical College, Bengbu, People's Republic of China
| | - Ting-Ting Dou
- School of Public Health, Bengbu Medical College, Bengbu, People's Republic of China
| | - Jing-Ya Chen
- School of Public Health, Bengbu Medical College, Bengbu, People's Republic of China
| | - Ming-Xiu Duan
- School of Public Health, Bengbu Medical College, Bengbu, People's Republic of China
| | - Quan Zhen
- School of Public Health, Bengbu Medical College, Bengbu, People's Republic of China
| | - Hua-Zhang Wu
- School of Life Science, Anhui Province Key Laboratory of Translational Cancer Research, Bengbu Medical College, Bengbu, People's Republic of China.
| | - Yun-Li Zhao
- School of Public Health, Bengbu Medical College, Bengbu, People's Republic of China.
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Kuropka P, Dobrzynski M, Bazanow B, Stygar D, Gebarowski T, Leskow A, Tarnowska M, Szyszka K, Malecka M, Nowak N, Strek W, Wiglusz RJ. A Study of the Impact of Graphene Oxide on Viral Infection Related to A549 and TC28a2 Human Cell Lines. MATERIALS 2021; 14:ma14247788. [PMID: 34947381 PMCID: PMC8706136 DOI: 10.3390/ma14247788] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Revised: 12/04/2021] [Accepted: 12/13/2021] [Indexed: 01/14/2023]
Abstract
Graphene has been one of the most tested materials since its discovery in 2004. It is known for its special properties, such as electrical conductivity, elasticity and flexibility, antimicrobial effect, and high biocompatibility with many mammal cells. In medicine, the antibacterial, antiviral, and antitumor properties of graphene have been tested as intensively as its drug carrying ability. In this study, the protective effect of graphene oxide against Rubella virus infection of human lung epithelial carcinoma cells and human chondrocyte cells was examined. Cells were incubated with graphene oxide alone and in combination with the Rubella virus. The cytopathic effect in two incubation time periods was measured using DAPI dye as a percentage value of the changed cells. It was shown that the graphene oxide alone has no cytopathic effect on any of tested cell lines, while the Rubella virus alone is highly cytopathic to the cells. However, in combination with the graphene oxide percentage of the changed cells, its cytotopathicity is significantly lower. Moreover, it can be concluded that graphene oxide has protective properties against the Rubella virus infection to cells, lowering its cytopathic changes to the human cells.
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Affiliation(s)
- Piotr Kuropka
- Department of Biostructure and Animal Physiology, Wroclaw University of Environmental and Life Sciences, Kozuchowska 1, 51-631 Wroclaw, Poland; (P.K.); (T.G.)
| | - Maciej Dobrzynski
- Department of Pediatric Dentistry and Preclinical Dentistry, Wroclaw Medical University, Krakowska 26, 50-425 Wroclaw, Poland;
| | - Barbara Bazanow
- Department of Pathology, Wroclaw University of Environmental and Life Sciences, Norwida 31, 50-375 Wroclaw, Poland;
| | - Dominika Stygar
- Department of Physiology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, Poniatowskiego 15, 40-055 Katowice, Poland;
| | - Tomasz Gebarowski
- Department of Biostructure and Animal Physiology, Wroclaw University of Environmental and Life Sciences, Kozuchowska 1, 51-631 Wroclaw, Poland; (P.K.); (T.G.)
| | - Anna Leskow
- Department of Basic Sciences, Faculty of Health Sciences, Wroclaw Medical University, Grunwaldzka 2, 50-368 Wroclaw, Poland; (A.L.); (M.T.)
| | - Malgorzata Tarnowska
- Department of Basic Sciences, Faculty of Health Sciences, Wroclaw Medical University, Grunwaldzka 2, 50-368 Wroclaw, Poland; (A.L.); (M.T.)
| | - Katarzyna Szyszka
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okolna 2, 50-422 Wroclaw, Poland; (K.S.); (M.M.); (N.N.); (W.S.)
| | - Malgorzata Malecka
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okolna 2, 50-422 Wroclaw, Poland; (K.S.); (M.M.); (N.N.); (W.S.)
| | - Nicole Nowak
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okolna 2, 50-422 Wroclaw, Poland; (K.S.); (M.M.); (N.N.); (W.S.)
| | - Wieslaw Strek
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okolna 2, 50-422 Wroclaw, Poland; (K.S.); (M.M.); (N.N.); (W.S.)
| | - Rafal J. Wiglusz
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okolna 2, 50-422 Wroclaw, Poland; (K.S.); (M.M.); (N.N.); (W.S.)
- Correspondence: ; Tel.: +48-713954159
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34
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Di Ianni E, Møller P, Vogel UB, Jacobsen NR. Pro-inflammatory response and genotoxicity caused by clay and graphene nanomaterials in A549 and THP-1 cells. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2021; 872:503405. [PMID: 34798932 DOI: 10.1016/j.mrgentox.2021.503405] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 09/02/2021] [Accepted: 09/11/2021] [Indexed: 10/20/2022]
Abstract
Nanoclays and graphene oxide nanomaterials represent a class of materials sharing similar shapes constituted of high aspect ratio platelets. The increased production of these materials for various industrial applications increases the risk of occupational exposure, consequently with elevated risk of adverse reactions and development of pulmonary diseases, including lung cancer. In this study, pro-inflammatory responses and genotoxicity were assessed in alveolar epithelial cells (A549) and activated THP-1 macrophages (THP-1a) after exposure to three nanoclays; a pristine (Bentonite) and two surface modified (benzalkonium chloride-coated Nanofil9, and dialkyldimethyl-ammonium-coated NanofilSE3000); graphene oxide (GO) and reduced graphene oxide (r-GO) nanomaterials. The pro-inflammatory response in terms of IL-8 expression was strongest in cells exposed to Bentonite, whereas surface modification resulted in decreased toxicity in both cell lines when exposed to Nanofil9 and NanofilSE3000. GO and r-GO induced a pro-inflammatory response in A549 cells, while no effect was detected with the two nanomaterials on THP-1a cells. The pro-inflammatory response was strongly correlated with in vivo inflammation in mice after intra-tracheal instillation when doses were normalized against surface area. Genotoxicity was assessed as DNA strand breaks, using the alkaline comet assay. In A549 cells, an increase in DNA strand breaks was detected only in cells exposed to Bentonite, whereas Bentonite, NanofilSE3000 and GO caused an increased level of genotoxicity in THP-1a cells. Genotoxicity in THP-1a cells was concordant with the DNA damage in bronchoalveolar lavage fluid cells following 1 and 3 days after intra-tracheal instillation in mice. In conclusion, this study shows that surface modification of pristine nanoclays reduces the inflammatory and genotoxic response in A549 and THP-1a cells, and these in vitro models show comparable toxicity to what seen in previous mouse studies with the same materials.
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Affiliation(s)
- Emilio Di Ianni
- National Research Centre for the Working Environment, Copenhagen, Denmark
| | - Peter Møller
- Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Ulla Birgitte Vogel
- National Research Centre for the Working Environment, Copenhagen, Denmark; National Food Institute, Technical University of Denmark, Kgs.Lyngby, Denmark
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Structure-Activity Relationship of Graphene-Based Materials: Impact of the Surface Chemistry, Surface Specific Area and Lateral Size on Their In Vitro Toxicity. NANOMATERIALS 2021; 11:nano11112963. [PMID: 34835726 PMCID: PMC8619174 DOI: 10.3390/nano11112963] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 10/26/2021] [Accepted: 10/28/2021] [Indexed: 02/07/2023]
Abstract
Predictive toxicity and structure–activity relationships (SARs) are raising interest since the number of nanomaterials has become unmanageable to assess their toxicity with a classical case-by-case approach. Graphene-based materials (GBMs) are among the most promising nanomaterials of this decade and their application might lead to several innovations. However, their toxicity impact needs to be thoroughly assessed. In this regard, we conducted a study on 22 GBMs to investigate their potential SARs by performing a complete physicochemical characterization and in vitro toxicity assessment (on RAW264.7 cells). We used GBMs of variable lateral size (0.5–38 µm), specific surface area (SSA, 30–880 m²/g), and surface oxidation (2–17%). We observed that reduced graphene oxides (RGOs) were more reactive than graphene nanoplatelets (GNPs), potentially highlighting the role of GBM’s surface chemistry and surface defects density in their biological impact. We also observed that for GNPs, a smaller lateral size caused higher cytotoxicity. Lastly, GBMs showing a SSA higher than 200 m²/g were found to induce a higher ROS production. Mechanistic explanations are proposed in the discussion. In conclusion, pairing a full physicochemical characterization with a standardized toxicity assessment of a large set of samples allowed us to clarify SARs and provide an additional step toward safe-by-design GBMs.
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Achawi S, Feneon B, Pourchez J, Forest V. Assessing biological oxidative damage induced by graphene-based materials: An asset for grouping approaches using the FRAS assay. Regul Toxicol Pharmacol 2021; 127:105067. [PMID: 34678327 DOI: 10.1016/j.yrtph.2021.105067] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 09/30/2021] [Accepted: 10/18/2021] [Indexed: 11/17/2022]
Abstract
Graphene-based materials (GBMs) are extremely promising and their increasing number urges scientists to conduct more and more toxicity studies. However, case-by-case approaches are rarely the best options in the earliest phases of industrial processes. Grouping can show great assets in this context: it is defined as the process of gathering substances into a common group. Oxidative stress being a major mechanism of nanotoxicity, an important grouping criterion is the surface reactivity, for which a relevant assessment is the FRAS (ferric reducing ability of the serum) assay. However, the application of the FRAS to GBMs is questioned due to their hydrophobicity. In this study, we explored the relevance and feasibility of the FRAS for grouping, working on 22 GBMs and 2 carbon blacks. We concluded that with few adjustments, the FRAS method appeared perfectly adapted to these materials and allowed a classification as "reactive" or "non-reactive" in agreement with results of ROS production for 84% of our GBMs. While not self-sufficient for toxicity assessment, the FRAS presents interesting qualities: it is fast, cheap, and simple. Therefore, we recommend studying GBMs using the FRAS as a step of a grouping process, a complement to other assays or as an early screening tool.
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Affiliation(s)
- Salma Achawi
- Manufacture Française des Pneumatiques Michelin, Place des Carmes Déchaux, 63040, Clermont-Ferrand, Cedex 9, France; Mines Saint-Etienne, Univ Lyon, Univ Jean Monnet, INSERM, U1059, Sainbiose, Centre CIS, F-42023, Saint-Etienne, France
| | - Bruno Feneon
- Manufacture Française des Pneumatiques Michelin, Place des Carmes Déchaux, 63040, Clermont-Ferrand, Cedex 9, France
| | - Jérémie Pourchez
- Mines Saint-Etienne, Univ Lyon, Univ Jean Monnet, INSERM, U1059, Sainbiose, Centre CIS, F-42023, Saint-Etienne, France
| | - Valérie Forest
- Mines Saint-Etienne, Univ Lyon, Univ Jean Monnet, INSERM, U1059, Sainbiose, Centre CIS, F-42023, Saint-Etienne, France.
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Achawi S, Pourchez J, Feneon B, Forest V. Graphene-Based Materials In Vitro Toxicity and Their Structure-Activity Relationships: A Systematic Literature Review. Chem Res Toxicol 2021; 34:2003-2018. [PMID: 34424669 DOI: 10.1021/acs.chemrestox.1c00243] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The unique properties of graphene-based materials (GBMs) placed them among the most exciting nanomaterials of the past decade. Scientists and industry are looking forward to working with not only efficient but also safe, sustainable GBMs. Designing a safer-by-design GBM implies to acquire the knowledge of which physicochemical characteristics (PCCs) can increase toxicity. In this systematic review, we extracted data from the literature to provide the available information about the structure-activity relationship of GBMs. 93 papers studying a total of 185 GBMs are included. Graphene oxides (GOs) and few-layer graphenes (FLGs) are the most studied GBMs. While reduced graphene oxides were often classified as poorly oxidant and weakly cytotoxic, graphene quantum dots were mostly moderately or highly cytotoxic. FLGs demonstrated relationships between median size and oxidative stress, between lateral size and both cytotoxicity and oxidative stress, and between thickness and cytotoxicity. We also underline relationships between median size, lateral size, and thickness of GOs and oxidative stress. However, it appears difficult to highlight clear structure-activity relationships for most PCCs and biological end points because despite a large amount of available data, the GBMs are often too poorly characterized in terms of PCCs descriptors and the biological end points investigation is not standardized enough. There is an urgent need for a better standardization of the experimental investigation of both PCCs and biological end points to allow research teams to play a part in the collaborative work toward the construction of a safer-by-design GBM through a better understanding of their key toxicity drivers.
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Affiliation(s)
- Salma Achawi
- Manufacture Française des Pneumatiques Michelin, Place des Carmes Déchaux, 63040 Clermont-Ferrand, Cedex 9, France.,Mines Saint-Etienne, Université Lyon, Université Jean Monnet, INSERM, U1059 Sainbiose, Centre CIS, F-42023 Saint-Etienne, France
| | - Jérémie Pourchez
- Mines Saint-Etienne, Université Lyon, Université Jean Monnet, INSERM, U1059 Sainbiose, Centre CIS, F-42023 Saint-Etienne, France
| | - Bruno Feneon
- Manufacture Française des Pneumatiques Michelin, Place des Carmes Déchaux, 63040 Clermont-Ferrand, Cedex 9, France
| | - Valérie Forest
- Mines Saint-Etienne, Université Lyon, Université Jean Monnet, INSERM, U1059 Sainbiose, Centre CIS, F-42023 Saint-Etienne, France
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Raslan A, Ciriza J, Ochoa de Retana AM, Sanjuán ML, Toprak MS, Galvez-Martin P, Saenz-del-Burgo L, Pedraz JL. Modulation of Conductivity of Alginate Hydrogels Containing Reduced Graphene Oxide through the Addition of Proteins. Pharmaceutics 2021; 13:1473. [PMID: 34575549 PMCID: PMC8470000 DOI: 10.3390/pharmaceutics13091473] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 09/03/2021] [Accepted: 09/07/2021] [Indexed: 11/17/2022] Open
Abstract
Modifying hydrogels in order to enhance their conductivity is an exciting field with applications in cardio and neuro-regenerative medicine. Therefore, we have designed hybrid alginate hydrogels containing uncoated and protein-coated reduced graphene oxide (rGO). We specifically studied the adsorption of three different proteins, BSA, elastin, and collagen, and the outcomes when these protein-coated rGO nanocomposites are embedded within the hydrogels. Our results demonstrate that BSA, elastin, and collagen are adsorbed onto the rGO surface, through a non-spontaneous phenomenon that fits Langmuir and pseudo-second-order adsorption models. Protein-coated rGOs are able to preclude further adsorption of erythropoietin, but not insulin. Collagen showed better adsorption capacity than BSA and elastin due to its hydrophobic nature, although requiring more energy. Moreover, collagen-coated rGO hybrid alginate hydrogels showed an enhancement in conductivity, showing that it could be a promising conductive scaffold for regenerative medicine.
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Affiliation(s)
- Ahmed Raslan
- NanoBioCel Group, Laboratory of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of the Basque Country UPV/EHU, 01006 Vitoria-Gasteiz, Spain;
| | - Jesús Ciriza
- Biomedical Research Networking Center in Bioengineering, Biomaterials, and Nanomedicine, CIBER-BBN, Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain;
- Tissue Microenvironment (TME) Lab, Aragón Institute of Engineering Research (I3A), University of Zaragoza, C/Mariano Esquillor s/n, 50018 Zaragoza, Spain
- Institute for Health Research Aragón (IIS Aragón), 50009 Zaragoza, Spain
| | - Ana María Ochoa de Retana
- Department of Organic Chemistry I, Faculty of Pharmacy and Lascaray Research Center, University of the Basque Country (UPV/EHU), Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain;
| | - María Luisa Sanjuán
- Instituto de Ciencia de Materiales de Aragón (Universidad de Zaragoza-CSIC), Facultad de Ciencias, 50009 Zaragoza, Spain;
| | - Muhammet S. Toprak
- Biomedical and X-ray Physics, Department of Applied Physics, KTH-Royal Institute of Technology, 10691 Stockholm, Sweden;
| | | | - Laura Saenz-del-Burgo
- NanoBioCel Group, Laboratory of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of the Basque Country UPV/EHU, 01006 Vitoria-Gasteiz, Spain;
- Biomedical Research Networking Center in Bioengineering, Biomaterials, and Nanomedicine, CIBER-BBN, Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain;
- Bioaraba Health Research Institute, Jose Atxotegi, s/n, 01009 Vitoria-Gasteiz, Spain
| | - Jose Luis Pedraz
- NanoBioCel Group, Laboratory of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of the Basque Country UPV/EHU, 01006 Vitoria-Gasteiz, Spain;
- Biomedical Research Networking Center in Bioengineering, Biomaterials, and Nanomedicine, CIBER-BBN, Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain;
- Bioaraba Health Research Institute, Jose Atxotegi, s/n, 01009 Vitoria-Gasteiz, Spain
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Nirmal NK, Awasthi KK, John PJ. Hepatotoxicity of graphene oxide in Wistar rats. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:46367-46376. [PMID: 32632678 DOI: 10.1007/s11356-020-09953-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 06/26/2020] [Indexed: 06/11/2023]
Abstract
Graphene oxide (GO) has a multitude of applications in areas of nanomedicine, electronics, textile, water purification, and catalysis among others. GO is relatively easier to manufacture and customize as compared with other carbon-based nanomaterials. In the present work, GO was administered intraperitoneally to adult Wistar rats in four incremental doses, i.e., 0.0 mg/kg (control), 0.4 mg/kg (low dose), 2.0 mg/kg (mid-dose), and 10.0 mg/kg (high dose). After 15 repeated doses over a period of 30 days, biochemical assays for alanine transaminase (ALT), aspartate transaminase (AST), alkaline phosphatase (ALP), catalase (CAT), and malondialdehyde (MDA) were carried out. Histopathological and morphometric analyses of liver and kidney were also performed. Results demonstrated dose-dependent toxicity of GO. General behavior and liver indices remained unaffected in the study. Serum levels of ALT, ALP, and AST were altered significantly in high-dose treated animals. Changes were found insignificant in the low- and mid-dose groups. Catalase activity in liver tissue homogenates was decreased in the high-dose group. MDA levels were found elevated in treated rats. Unlike control and low dose, mid- and high-dose treated rats exhibited varying degrees of histopathological changes like inflammation around the central vein and portal veins, vacuolations, hepatocytic injury, and near normal to abnormal hepatic sinusoids. These findings show that GO has considerable toxic potential to mammalian liver and thorough toxicity studies are needed before these nanosheets are used in biomedicine.
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Affiliation(s)
- Naresh K Nirmal
- Department of Zoology, University of Rajasthan, Jaipur, 302004, India
| | - Kumud K Awasthi
- Department of Life Sciences, Vivekananda Global University, Jaipur, 303012, India
| | - Placheril J John
- Department of Zoology, University of Rajasthan, Jaipur, 302004, India.
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Comparison of the Toxicity of Pristine Graphene and Graphene Oxide, Using Four Biological Models. MATERIALS 2021; 14:ma14154250. [PMID: 34361444 PMCID: PMC8348526 DOI: 10.3390/ma14154250] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Revised: 07/24/2021] [Accepted: 07/27/2021] [Indexed: 12/16/2022]
Abstract
There are numerous applications of graphene in biomedicine and they can be classified into several main areas: delivery systems, sensors, tissue engineering and biological agents. The growing biomedical field of applications of graphene and its derivates raises questions regarding their toxicity. We will demonstrate an analysis of the toxicity of two forms of graphene using four various biological models: zebrafish (Danio rerio) embryo, duckweed (Lemna minor), human HS-5 cells and bacteria (Staphylococcus aureus). The toxicity of pristine graphene (PG) and graphene oxide (GO) was tested at concentrations of 5, 10, 20, 50 and 100 µg/mL. Higher toxicity was noted after administration of high doses of PG and GO in all tested biological models. Hydrophilic GO shows greater toxicity to biological models living in the entire volume of the culture medium (zebrafish, duckweed, S. aureus). PG showed the highest toxicity to adherent cells growing on the bottom of the culture plates—human HS-5 cells. The differences in toxicity between the tested graphene materials result from their physicochemical properties and the model used. Dose-dependent toxicity has been demonstrated with both forms of graphene.
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Synthesis and Toxicity of Graphene Oxide Nanoparticles: A Literature Review of In Vitro and In Vivo Studies. BIOMED RESEARCH INTERNATIONAL 2021; 2021:5518999. [PMID: 34222470 PMCID: PMC8213470 DOI: 10.1155/2021/5518999] [Citation(s) in RCA: 69] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 04/11/2021] [Accepted: 05/29/2021] [Indexed: 11/18/2022]
Abstract
Nanomaterials have been widely used in many fields in the last decades, including electronics, biomedicine, cosmetics, food processing, buildings, and aeronautics. The application of these nanomaterials in the medical field could improve diagnosis, treatment, and prevention techniques. Graphene oxide (GO), an oxidized derivative of graphene, is currently used in biotechnology and medicine for cancer treatment, drug delivery, and cellular imaging. Also, GO is characterized by various physicochemical properties, including nanoscale size, high surface area, and electrical charge. However, the toxic effect of GO on living cells and organs is a limiting factor that limits its use in the medical field. Recently, numerous studies have evaluated the biocompatibility and toxicity of GO in vivo and in vitro. In general, the severity of this nanomaterial's toxic effects varies according to the administration route, the dose to be administered, the method of GO synthesis, and its physicochemical properties. This review brings together studies on the method of synthesis and structure of GO, characterization techniques, and physicochemical properties. Also, we rely on the toxicity of GO in cellular models and biological systems. Moreover, we mention the general mechanism of its toxicity.
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Yadav M, Niveria K, Sen T, Roy I, Verma AK. Targeting nonapoptotic pathways with functionalized nanoparticles for cancer therapy: current and future perspectives. Nanomedicine (Lond) 2021; 16:1049-1065. [PMID: 33970686 DOI: 10.2217/nnm-2020-0443] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Apoptotic death evasion is a hallmark of cancer progression. In this context, past decades have witnessed cytotoxic agents targeting apoptosis. However, owing to cellular defects in the apoptotic machinery, tumors develop resistance to apoptosis-based cancer therapies. Hence, targeting nonapoptotic cell-death pathways displays enhanced therapeutic success in apoptosis-defective tumor cells. Exploitation of multifunctional properties of engineered nanoparticles may allow cancer therapeutics to target yet unexplored pathways such as ferroptosis, autophagy and necroptosis. Necroptosis presents a programmed necrotic death initiated by same apoptotic death signals that are caspase independent, whereas autophagy is self-degradative causing vacuolation, and ferroptosis is an iron-dependent form driven by lipid peroxidation. Targeting these tightly regulated nonapoptotic pathways may emerge as a new direction in cancer drug development, diagnostics and novel cancer nanotherapeutics. This review highlights the current challenges along with the advancement in this field of research and finally summarizes the future perspective in terms of their clinical merits.
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Affiliation(s)
- Monika Yadav
- Nanobiotech Lab, Kirori Mal College, University of Delhi, Delhi, 110007, India
| | - Karishma Niveria
- Nanobiotech Lab, Kirori Mal College, University of Delhi, Delhi, 110007, India
| | - Tapas Sen
- School of Natural Sciences, University of Central Lancashire, PR1 2HE, UK
| | - Indrajit Roy
- Department of Chemistry, University of Delhi, Delhi, 110007, India
| | - Anita K Verma
- Nanobiotech Lab, Kirori Mal College, University of Delhi, Delhi, 110007, India
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Li J, Wang X, Mei KC, Chang CH, Jiang J, Liu X, Liu Q, Guiney LM, Hersam MC, Liao YP, Meng H, Xia T. Lateral size of graphene oxide determines differential cellular uptake and cell death pathways in Kupffer cells, LSECs, and hepatocytes. NANO TODAY 2021; 37:101061. [PMID: 34055032 PMCID: PMC8153408 DOI: 10.1016/j.nantod.2020.101061] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
As a representative two-dimensional (2D) nanomaterial, graphene oxide (GO) has shown high potential in many applications due to its large surface area, high flexibility, and excellent dispersibility in aqueous solutions. These properties make GO an ideal candidate for bio-imaging, drug delivery, and cancer therapy. When delivered to the body, GO has been shown to accumulate in the liver, the primary accumulation site of systemic delivery or secondary spread from other uptake sites, and induce liver toxicity. However, the contribution of the GO physicochemical properties and individual liver cell types to this toxicity is unclear due to property variations and diverse cell types in the liver. Herein, we compare the effects of GOs with small (GO-S) and large (GO-L) lateral sizes in three major cell types in liver, Kupffer cells (KCs), liver sinusoidal endothelial cells (LSECs), and hepatocytes. While GOs induced cytotoxicity in KCs, they induced significantly less toxicity in LSECs and hepatocytes. For KCs, we found that GOs were phagocytosed that triggered NADPH oxidase mediated plasma membrane lipid peroxidation, which leads to PLC activation, calcium flux, mitochondrial ROS generation, and NLRP3 inflammasome activation. The subsequent caspase-1 activation induced IL-1β production and GSDMD-mediated pyroptosis. These effects were lateral size-dependent with GO-L showing stronger effects than GO-S. Amongst the liver cell types, decreased cell association and the absence of lipid peroxidation resulted in low cytotoxicity in LSECs and hepatocytes. Using additional GO samples with different lateral sizes, surface functionalities, or thickness, we further confirmed the differential cytotoxic effects in liver cells and the major role of GO lateral size in KUP5 pyroptosis by correlation studies. These findings delineated the GO effects on cellular uptake and cell death pathways in liver cells, and provide valuable information to further evaluate GO effects on the liver for biomedical applications.
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Affiliation(s)
- Jiulong Li
- Center of Environmental Implications of Nanotechnology (UC CEIN), University of California, Los Angeles, CA 90095, USA
- California NanoSystems Institute, University of California, Los Angeles, CA 90095, USA
| | - Xiang Wang
- Center of Environmental Implications of Nanotechnology (UC CEIN), University of California, Los Angeles, CA 90095, USA
- California NanoSystems Institute, University of California, Los Angeles, CA 90095, USA
| | - Kuo-Ching Mei
- Center of Environmental Implications of Nanotechnology (UC CEIN), University of California, Los Angeles, CA 90095, USA
- California NanoSystems Institute, University of California, Los Angeles, CA 90095, USA
| | - Chong Hyun Chang
- Center of Environmental Implications of Nanotechnology (UC CEIN), University of California, Los Angeles, CA 90095, USA
- California NanoSystems Institute, University of California, Los Angeles, CA 90095, USA
| | - Jinhong Jiang
- Center of Environmental Implications of Nanotechnology (UC CEIN), University of California, Los Angeles, CA 90095, USA
- California NanoSystems Institute, University of California, Los Angeles, CA 90095, USA
| | - Xiangsheng Liu
- Center of Environmental Implications of Nanotechnology (UC CEIN), University of California, Los Angeles, CA 90095, USA
- California NanoSystems Institute, University of California, Los Angeles, CA 90095, USA
| | - Qi Liu
- Center of Environmental Implications of Nanotechnology (UC CEIN), University of California, Los Angeles, CA 90095, USA
- California NanoSystems Institute, University of California, Los Angeles, CA 90095, USA
| | - Linda M. Guiney
- Departments of Materials Science and Engineering, Chemistry, and Medicine, Northwestern University, Evanston, IL 60208, USA
| | - Mark C. Hersam
- Departments of Materials Science and Engineering, Chemistry, and Medicine, Northwestern University, Evanston, IL 60208, USA
| | - Yu-Pei Liao
- Center of Environmental Implications of Nanotechnology (UC CEIN), University of California, Los Angeles, CA 90095, USA
- California NanoSystems Institute, University of California, Los Angeles, CA 90095, USA
| | - Huan Meng
- Center of Environmental Implications of Nanotechnology (UC CEIN), University of California, Los Angeles, CA 90095, USA
- California NanoSystems Institute, University of California, Los Angeles, CA 90095, USA
- Division of NanoMedicine, Department of Medicine, University of California, Los Angeles, CA 90095, USA
| | - Tian Xia
- Center of Environmental Implications of Nanotechnology (UC CEIN), University of California, Los Angeles, CA 90095, USA
- California NanoSystems Institute, University of California, Los Angeles, CA 90095, USA
- Division of NanoMedicine, Department of Medicine, University of California, Los Angeles, CA 90095, USA
- Corresponding Author: Tian Xia, M.D./Ph.D., Department of Medicine, Division of NanoMedicine, UCLA School of Medicine, 52-175 CHS, 10833 Le Conte Ave, Los Angeles, CA 90095-1680.
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Burgum MJ, Clift MJD, Evans SJ, Hondow N, Miller M, Lopez SB, Williams A, Tarat A, Jenkins GJ, Doak SH. In Vitro Primary-Indirect Genotoxicity in Bronchial Epithelial Cells Promoted by Industrially Relevant Few-Layer Graphene. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2002551. [PMID: 32734718 DOI: 10.1002/smll.202002551] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 06/05/2020] [Indexed: 06/11/2023]
Abstract
Few-layer graphene (FLG) has garnered much interest owing to applications in hydrogen storage and reinforced nanocomposites. Consequently, these engineered nanomaterials (ENMs) are in high demand, increasing occupational exposure. This investigation seeks to assess the inhalation hazard of industrially relevant FLG engineered with: (i) no surface functional groups (neutral), (ii) amine, and (iii) carboxyl group functionalization. A monoculture of human lung epithelial (16HBE14o- ) cells is exposed to each material for 24-h, followed by cytotoxicity and genotoxicity evaluation using relative population doubling (RPD) and the cytokinesis-blocked micronucleus (CBMN) assay, respectively. Neutral-FLG induces the greatest (two-fold) significant increase (p < 0.05) in micronuclei, whereas carboxyl-FLG does not induce significant (p < 0.05) genotoxicity. These findings correlate to significant (p < 0.05) concentration-dependent increases in interleukin (IL)-8, depletion of intracellular glutathione (rGSH) and a depletion in mitochondrial ATP production. Uptake of FLG is evaluated by transmission electron microscopy, whereby FLG particles are observed within membrane-bound vesicles in the form of large agglomerates (>1 µm diameter). The findings of the present study have demonstrated the capability of neutral-FLG and amine-FLG to induce genotoxicity in 16HBE14o- cells through primary indirect mechanisms, suggesting a possible role for carboxyl groups in scavenging radicals produced via oxidative stress.
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Affiliation(s)
- Michael J Burgum
- Institute of Life Science, Swansea University Medical School, Swansea University, Singleton Park, Swansea, Wales, SA2 8PP, UK
| | - Martin J D Clift
- Institute of Life Science, Swansea University Medical School, Swansea University, Singleton Park, Swansea, Wales, SA2 8PP, UK
| | - Stephen J Evans
- Institute of Life Science, Swansea University Medical School, Swansea University, Singleton Park, Swansea, Wales, SA2 8PP, UK
| | - Nicole Hondow
- School of Chemical and Process Engineering, University of Leeds, Leeds, LS2 9JT, UK
| | - Mark Miller
- Centre for Cardiovascular Science, The University of Edinburgh, Queens Medical Research Institute, Edinburgh, EH16 4TJ, UK
| | | | - Adam Williams
- Department of Physics, Swansea University, Singleton Park, Swansea, Wales, SA2 8PP, UK
| | - Afshin Tarat
- Perpetuus Carbon Technologies, Unit B1, Olympus Court, Millstream Way, Swansea Vale, Llansamlet, Swansea, SA70AQ, UK
| | - Gareth J Jenkins
- Institute of Life Science, Swansea University Medical School, Swansea University, Singleton Park, Swansea, Wales, SA2 8PP, UK
| | - Shareen H Doak
- Institute of Life Science, Swansea University Medical School, Swansea University, Singleton Park, Swansea, Wales, SA2 8PP, UK
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Ruan F, Liu R, Wang K, Zeng J, Zuo Z, He C, Zhang Y. Cytotoxicity of black phosphorus quantum dots on lung-derived cells and the underlying mechanisms. JOURNAL OF HAZARDOUS MATERIALS 2021; 402:122875. [PMID: 33254732 DOI: 10.1016/j.jhazmat.2020.122875] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 04/09/2020] [Accepted: 05/05/2020] [Indexed: 06/12/2023]
Abstract
Black phosphorus quantum dots (BP-QDs) are a new type of zero-dimensional (0D) nanomaterial that has been widely used due of their superior properties in many biomedical fields, but limited studies have focused on the biocompatibility of BP-QDs, particularly in the respiratory system. In this study, we investigated the potential lung cell toxicity of BP-QDs in vitro. Two human lung-derived cells, A549 and Beas-2B, were treated with 5∼20 μg/mL BP-QDs for 24 h. The results showed that BP-QDs triggered significant lung cell toxicity, including a dose-dependent decrease in cell viability, lactate dehydrogenase (LDH) leakage, cell shape changes, cellular oxidative stress and cell cycle arrest. In addition, pretreatment with the classical phagocytosis inhibitor cytochalasin D (Cyto D) alleviated the decrease in cell viability and LDH leakage induced by BP-QDs. In contrast, BP-QDs induced the production of cellular reactive oxygen species (ROS) and decreases in the glutathione level, whereas the ROS scavenger N-acetyl-L-cysteine (NAC) could protect A549 and Beas-2B cells from BP-QD-induced cellular oxidative stress. Taken together, the results from this study indicate that the potential toxic effects and mechanisms of BP-QDs in two different human lung cells should be considered to evaluate the lung cell safety of BP-QDs.
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Affiliation(s)
- Fengkai Ruan
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, State Key Laboratory of Cellular Stress Biology, Xiamen University, Xiamen, Fujian 361102, China
| | - Rong Liu
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, State Key Laboratory of Cellular Stress Biology, Xiamen University, Xiamen, Fujian 361102, China
| | - Kai Wang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, State Key Laboratory of Cellular Stress Biology, Xiamen University, Xiamen, Fujian 361102, China
| | - Jie Zeng
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, State Key Laboratory of Cellular Stress Biology, Xiamen University, Xiamen, Fujian 361102, China
| | - Zhenghong Zuo
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, State Key Laboratory of Cellular Stress Biology, Xiamen University, Xiamen, Fujian 361102, China
| | - Chengyong He
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, State Key Laboratory of Cellular Stress Biology, Xiamen University, Xiamen, Fujian 361102, China.
| | - Yongxing Zhang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, State Key Laboratory of Cellular Stress Biology, Xiamen University, Xiamen, Fujian 361102, China.
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Ahamed M, Akhtar MJ, Khan MAM, Alhadlaq HA. SnO 2-Doped ZnO/Reduced Graphene Oxide Nanocomposites: Synthesis, Characterization, and Improved Anticancer Activity via Oxidative Stress Pathway. Int J Nanomedicine 2021; 16:89-104. [PMID: 33447029 PMCID: PMC7802795 DOI: 10.2147/ijn.s285392] [Citation(s) in RCA: 63] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 11/30/2020] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Therapeutic selectivity and drug resistance are critical issues in cancer therapy. Currently, zinc oxide nanoparticles (ZnO NPs) hold considerable promise to tackle this problem due to their tunable physicochemical properties. This work was designed to prepare SnO2-doped ZnO NPs/reduced graphene oxide nanocomposites (SnO2-ZnO/rGO NCs) with enhanced anticancer activity and better biocompatibility than those of pure ZnO NPs. MATERIALS AND METHODS Pure ZnO NPs, SnO2-doped ZnO (SnO2-ZnO) NPs, and SnO2-ZnO/rGO NCs were prepared via a facile hydrothermal method. Prepared samples were characterized by field emission transmission electron microscopy (FETEM), energy dispersive spectroscopy (EDS), field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), ultraviolet-visible (UV-VIS) spectrometer, and dynamic light scattering (DLS) techniques. Selectivity and anticancer activity of prepared samples were assessed in human breast cancer (MCF-7) and human normal breast epithelial (MCF10A) cells. Possible mechanisms of anticancer activity of prepared samples were explored through oxidative stress pathway. RESULTS XRD spectra of SnO2-ZnO/rGO NCs confirmed the formation of single-phase of hexagonal wurtzite ZnO. High resolution TEM and SEM mapping showed homogenous distribution of SnO2 and rGO in ZnO NPs with high quality lattice fringes without any distortion. Band gap energy of SnO2-ZnO/rGO NCs was lower compared to SnO2-ZnO NPs and pure ZnO NPs. The SnO2-ZnO/rGO NCs exhibited significantly higher anticancer activity against MCF-7 cancer cells than those of SnO2-ZnO NPs and ZnO NPs. The SnO2-ZnO/rGO NCs induced apoptotic response through the upregulation of caspase-3 gene and depletion of mitochondrial membrane potential. Mechanistic study indicated that SnO2-ZnO/rGO NCs kill cancer cells through oxidative stress pathway. Moreover, biocompatibility of SnO2-ZnO/rGO NCs was also higher against normal breast epithelial (MCF10A cells) in comparison to SnO2-ZnO NPs and ZnO NPs. CONCLUSION SnO2-ZnO/rGO NCs showed enhanced anticancer activity and better biocompatibility than SnO2-ZnO NPs and pure ZnO NPs. This work suggested a new approach to improve the selectivity and anticancer activity of ZnO NPs. Studies on antitumor activity of SnO2-ZnO/rGO NCs in animal models are further warranted.
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Affiliation(s)
- Maqusood Ahamed
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh11451, Saudi Arabia
| | - Mohd Javed Akhtar
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh11451, Saudi Arabia
| | - M A Majeed Khan
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh11451, Saudi Arabia
| | - Hisham A Alhadlaq
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh11451, Saudi Arabia
- Department of Physics and Astronomy, College of Science, King Saud University, Riyadh11451, Saudi Arabia
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Ünlü ES, Kaya Ö, Eker İ, Gürel E. Sequencing, de novo assembly and annotation of Digitalis ferruginea subsp. schischkinii transcriptome. Mol Biol Rep 2021; 48:127-137. [PMID: 33403559 DOI: 10.1007/s11033-020-05982-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Accepted: 11/05/2020] [Indexed: 11/24/2022]
Abstract
There is an increasing demand for elucidating the biosynthetic pathway of medicinal plants, which are capable of producing several metabolites with great potentials for industrial drug production. Digitalis species are important medicinal plants for the production of cardenolide compounds. Advancement on culture techniques is strictly related to our understanding of the genomic background of species. There are a limited number of genomic studies on Digitalis species. The goal of this study is to contribute to the genomic data of Digitalis ferruginea subsp. schischkinii by presenting transcriptome annotation. Digitalis ferruginea subsp. schischkinii has a limited distribution in Turkey and Transcaucasia, and has a high level of lanatoside C, an important cardenolide. In the study, we sequenced the cDNA library prepared from RNA pools of D. ferruginea subsp. schischkinii tissues treated with various stress conditions. Comprehensive bioinformatics approaches were used for de novo assembly and functional annotation of D. ferruginea subsp. schischkinii transcriptome sequence data along with TF families predictions and phylogenetic analysis. In the study, 58,369 unigenes were predicted and unigenes were annotated by analyzing the sequence data in the non-redundant (NR) protein database, the non-redundant nucleotide (NT) database, Gene Orthology (GO), EuKaryotic Orthologous Groups (KOG), Kyoto Encyclopedia of Genes and Genomes (KEGG), SwissProt, and InterPro databases. This study is the first transcriptome data for D. ferruginea subsp. schischkinii.
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Affiliation(s)
- Ercan Selçuk Ünlü
- Department of Chemistry, Faculty of Arts and Science, Bolu Abant Izzet Baysal University, 14030, Bolu, Turkey.
| | - Özge Kaya
- Department of Biology, Faculty of Arts and Science, Bolu Abant Izzet Baysal University, 14030, Bolu, Turkey
| | - İsmail Eker
- Department of Biology, Faculty of Arts and Science, Bolu Abant Izzet Baysal University, 14030, Bolu, Turkey
| | - Ekrem Gürel
- Department of Biology, Faculty of Arts and Science, Bolu Abant Izzet Baysal University, 14030, Bolu, Turkey
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Alemi F, Zarezadeh R, Sadigh AR, Hamishehkar H, Rahimi M, Majidinia M, Asemi Z, Ebrahimi-Kalan A, Yousefi B, Rashtchizadeh N. Graphene oxide and reduced graphene oxide: Efficient cargo platforms for cancer theranostics. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2020.101974] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Ahamed M, Akhtar MJ, Khan MAM, Alhadlaq HA. Reduced graphene oxide mitigates cadmium-induced cytotoxicity and oxidative stress in HepG2 cells. Food Chem Toxicol 2020; 143:111515. [PMID: 32634506 DOI: 10.1016/j.fct.2020.111515] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 06/04/2020] [Accepted: 06/05/2020] [Indexed: 12/31/2022]
Abstract
Numerous applications of reduced graphene oxide (RGO) and pervasive cadmium (Cd) have led concern about their co-exposure to the environment and human. We studied the combined effects of RGO and Cd in human liver (HepG2) cells. Initially, we found that RGO (up to 50 μg/ml) did not harm to HepG2 cells while Cd induced dose-dependent (1-10 μg/ml) cytotoxicity. Exciting observations were that a non-cytotoxic concentration of RGO (25 μg/ml) effectively mitigates the toxic effects of Cd (2 μg/ml) such as cell viability reduction, lactate dehydrogenase release, and irregular cell morphology. Cd-induced cell cycle arrest, induction of caspases (3 and 9) enzymes activity, and loss of mitochondrial membrane potential were also significantly alleviated by RGO co-exposure. Moreover, generation of pro-oxidants (reactive oxygen species and hydrogen peroxide levels) and depletion of antioxidants (glutathione level and superoxide dismutase activity) due to Cd exposure was effectively attenuated by RGO co-exposure. Mitigating effect of RGO could be due to strong adsorption of Cd on the large surface area of RGO sheets, which decrease the cellular uptake and bioavailability of Cd for HepG2 cells. This study warrants future research on potential mechanisms of mitigating effects of RGO against Cd-induced toxicity in animal models.
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Affiliation(s)
- Maqusood Ahamed
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh, 11451, Saudi Arabia.
| | - Mohd Javed Akhtar
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh, 11451, Saudi Arabia
| | - M A Majeed Khan
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Hisham A Alhadlaq
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh, 11451, Saudi Arabia; Department of Physics and Astronomy, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
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Netkueakul W, Korejwo D, Hammer T, Chortarea S, Rupper P, Braun O, Calame M, Rothen-Rutishauser B, Buerki-Thurnherr T, Wick P, Wang J. Release of graphene-related materials from epoxy-based composites: characterization, quantification and hazard assessment in vitro. NANOSCALE 2020; 12:10703-10722. [PMID: 32374300 DOI: 10.1039/c9nr10245k] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Due to their mechanical strength, thermal stability and electrical conductivity, graphene-related materials (GRMs) have been extensively explored for various applications. Moreover, GRMs have been studied and applied as fillers in polymer composite manufacturing to enhance the polymer performance. With the foreseen growth in GRM production, occupational and consumer exposure is inevitable, thus raising concerns for potential health risks. Therefore, this study aims (1) to characterize aerosol particles released after mechanical abrasion on GRM-reinforced epoxy composites, (2) to quantify the amounts of protruding and free-standing GRMs in the abraded particles and (3) to assess the potential effects of the pristine GRMs as well as the abraded particles on human macrophages differentiated from the THP-1 cell line in vitro. GRMs used in this study included graphene nanoplatelets (GNPs), graphene oxide (GO), and reduced graphene oxide (rGO). All types of pristine GRMs tested induced a dose-dependent increase in reactive oxygen species formation, but a decrease in cell viability was only detected for large GNPs at high concentrations (20 and 40 μg mL-1). The particle modes measured using a scanning mobility particle sizer (SMPS) were 300-400 nm and using an aerodynamic particle sizer (APS) were between 2-3 μm, indicating the release of respirable particles. A significant fraction (51% to 92%) of the GRMs embedded in the epoxy composites was released in the form of free-standing or protruding GRMs in the abraded particles. The abraded particles did not induce any acute cytotoxic effects.
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Affiliation(s)
- Woranan Netkueakul
- Institute of Environmental Engineering, ETH Zurich, 8093, Zurich, Switzerland.
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