151
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Veloso AD, Ferraria AM, Botelho do Rego AM, Tavares PB, Valentão P, Pereira DD, Andrade PB, Fernandes AJ, Oliveira MC, Videira RA. Hydrophilic Carbon Nanomaterials: Characterisation by Physical, Chemical, and Biological Assays. ChemMedChem 2019; 14:699-711. [DOI: 10.1002/cmdc.201900003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Revised: 01/29/2019] [Indexed: 12/22/2022]
Affiliation(s)
- Andreia D. Veloso
- CQ-VR and Chemistry DepartmentUniversity of Trás-os-Montes e Alto Douro 5000-801 Vila Real Portugal
| | - Ana M. Ferraria
- Centro de Química-Física Molecular and IN and IBBInstituto Superior TécnicoUniversidade de Lisboa 1049-001 Lisboa Portugal
| | - Ana M. Botelho do Rego
- Centro de Química-Física Molecular and IN and IBBInstituto Superior TécnicoUniversidade de Lisboa 1049-001 Lisboa Portugal
| | - Pedro B. Tavares
- CQ-VR and Chemistry DepartmentUniversity of Trás-os-Montes e Alto Douro 5000-801 Vila Real Portugal
| | - Patrícia Valentão
- REQUIMTE/LAQV, Laboratório de FarmacognosiaDepartamento de Química, Faculdade de FarmáciaUniversidade do Porto 4050-313 Porto Portugal
| | - David D. Pereira
- REQUIMTE/LAQV, Laboratório de FarmacognosiaDepartamento de Química, Faculdade de FarmáciaUniversidade do Porto 4050-313 Porto Portugal
| | - Paula B. Andrade
- REQUIMTE/LAQV, Laboratório de FarmacognosiaDepartamento de Química, Faculdade de FarmáciaUniversidade do Porto 4050-313 Porto Portugal
| | - António J. Fernandes
- I3N and Physics DepartmentUniversity of Aveiro Campus de Santiago 3810-193 Aveiro Portugal
| | - Maria C. Oliveira
- CQ-VR and Chemistry DepartmentUniversity of Trás-os-Montes e Alto Douro 5000-801 Vila Real Portugal
| | - Romeu A. Videira
- REQUIMTE/LAQV, Laboratório de FarmacognosiaDepartamento de Química, Faculdade de FarmáciaUniversidade do Porto 4050-313 Porto Portugal
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152
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Reinholds I, Pugajeva I, Bogdanova E, Jaunbergs J, Bartkevics V. Recent applications of carbonaceous nanosorbents for the analysis of mycotoxins in food by liquid chromatography: a short review. WORLD MYCOTOXIN J 2019. [DOI: 10.3920/wmj2018.2339] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Carbonaceous nanomaterials (multi-walled carbon nanotubes (MWCNTs), graphene, and graphene oxide (GO)) have attracted attention over the last decade as adsorbents suitable for the analysis of organic and inorganic pollutants. In the present paper we review methods of mycotoxin analysis that involve sample extraction with carbonaceous nanosorbents, reported from 2011 onwards. Recent studies have highlighted the advantages of magnetically modified MWCNTs and GO in mycotoxin analysis, which may enable sample isolation through magnetic separation, reduce the interaction of nanoparticles, and enhance the recovery of analytes. The papers covered in this review point to promising applications of functionalised carbonaceous nanosorbents in mycotoxin analysis. While GO based sorbents can be effective for the adsorption of relatively polar aflatoxins, MWCNTs with high specific surface area and reduced agglomeration achieved through modification with silica and magnetic particles are preferred for the extraction of less polar mycotoxins.
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Affiliation(s)
- I. Reinholds
- Institute of Food Safety, Animal Health and Environment ‘BIOR’, Lejupes iela 3, Riga 1076, Latvia
| | - I. Pugajeva
- Institute of Food Safety, Animal Health and Environment ‘BIOR’, Lejupes iela 3, Riga 1076, Latvia
| | - E. Bogdanova
- Institute of Food Safety, Animal Health and Environment ‘BIOR’, Lejupes iela 3, Riga 1076, Latvia
| | - J. Jaunbergs
- Institute of Food Safety, Animal Health and Environment ‘BIOR’, Lejupes iela 3, Riga 1076, Latvia
| | - V. Bartkevics
- Institute of Food Safety, Animal Health and Environment ‘BIOR’, Lejupes iela 3, Riga 1076, Latvia
- Faculty of Chemistry, University of Latvia, Jelgavas iela 1, Riga 1004, Latvia
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153
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Xie J, Wang N, Dong X, Wang C, Du Z, Mei L, Yong Y, Huang C, Li Y, Gu Z, Zhao Y. Graphdiyne Nanoparticles with High Free Radical Scavenging Activity for Radiation Protection. ACS APPLIED MATERIALS & INTERFACES 2019; 11:2579-2590. [PMID: 29509394 DOI: 10.1021/acsami.8b00949] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Numerous carbon networks materials comprised of benzene moieties, such as graphene and fullerene, have held great fascination for radioprotection because of their acknowledged good biocompatibility and strong free radical scavenging activity derived from their delocalized π-conjugated structure. Recently, graphdiyne, a new emerging carbon network material consisting of a unique chemical structure of benzene and acetylenic moieties, has gradually attracted attention in many research fields. Encouraged by its unique structure with strong conjugated π-system and highly reactive diacetylenic linkages, graphdiyne might have free radical activity and can thus be used as a radioprotector, which has not been investigated so far. Herein, for the first time, we synthesized bovine serum albumin (BSA)-modified graphdiyne nanoparticles (graphdiyne-BSA NPs) to evaluate their free radical scavenging ability and investigate their application for radioprotection both in cell and animal models. In vitro studies indicated that the graphdiyne-BSA NPs could effectively eliminate the free-radicals, decrease radiation-induced DNA damage in cells, and improve the viability of cells under ionizing radiation. In vivo experiments showed that the graphdiyne-BSA NPs could protect the bone marrow DNA of mice from radiation-induced damage and make the superoxide dismutase (SOD) and malondialdehyde (MDA) (two kinds of vital indicators of radiation-induced injury) recover back to normal levels. Furthermore, the good biocompatibility and negligible systemically toxicity responses of the graphdiyne-BSA NPs to mice were verified. All these results manifest the good biosafety and radioprotection activity of graphdiyne-BSA NPs to normal tissues. Therefore, our studies not only provide a new radiation protection platform based on graphdiyne for protecting normal tissues from radiation-caused injury but also provide a promising direction for the application of graphdiyne in the biomedicine field.
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Affiliation(s)
- Jiani Xie
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics and National Center for Nanoscience and Technology of China , Chinese Academy of Sciences , Beijing 100049 , China
- University of Chinese Academy of Science , Beijing 100049 , China
| | - Ning Wang
- Qingdao Institute of Bioenergy and Bioprocess Technology , Chinese Academy of Sciences . No. 189 Songling Road , Qingdao 266101 , China
| | - Xinghua Dong
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics and National Center for Nanoscience and Technology of China , Chinese Academy of Sciences , Beijing 100049 , China
- University of Chinese Academy of Science , Beijing 100049 , China
| | - Chengyan Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics and National Center for Nanoscience and Technology of China , Chinese Academy of Sciences , Beijing 100049 , China
- University of Chinese Academy of Science , Beijing 100049 , China
| | - Zhen Du
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics and National Center for Nanoscience and Technology of China , Chinese Academy of Sciences , Beijing 100049 , China
- University of Chinese Academy of Science , Beijing 100049 , China
| | - Linqiang Mei
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics and National Center for Nanoscience and Technology of China , Chinese Academy of Sciences , Beijing 100049 , China
| | - Yuan Yong
- College of Chemistry and Environment Protection Engineering , Southwest Minzu University , Chengdu , 610041 , P.R. China
| | - Changshui Huang
- Qingdao Institute of Bioenergy and Bioprocess Technology , Chinese Academy of Sciences . No. 189 Songling Road , Qingdao 266101 , China
| | - Yuliang Li
- Institute of Chemistry , Chinese Academy of Sciences , Beijing 100190 , China
| | - Zhanjun Gu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics and National Center for Nanoscience and Technology of China , Chinese Academy of Sciences , Beijing 100049 , China
- University of Chinese Academy of Science , Beijing 100049 , China
| | - Yuliang Zhao
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics and National Center for Nanoscience and Technology of China , Chinese Academy of Sciences , Beijing 100049 , China
- University of Chinese Academy of Science , Beijing 100049 , China
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154
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Ahmad IA, Kim HK, Deveci S, Kumar RV. Non-Isothermal Crystallisation Kinetics of Carbon Black- Graphene-Based Multimodal-Polyethylene Nanocomposites. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E110. [PMID: 30669270 PMCID: PMC6359078 DOI: 10.3390/nano9010110] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Revised: 01/09/2019] [Accepted: 01/11/2019] [Indexed: 11/16/2022]
Abstract
The effect of carbon black (CB) and microwave-induced plasma graphene (g) on the crystallisation kinetics of the multimodal high-density polyethylene was studied under non-isothermal conditions. The non-isothermal crystallisation behaviour of the multimodal-high-density polyethylene (HDPE), containing up to 5 wt.% graphene, was compared with that of neat multimodal-HDPE and its carbon black based nanocomposites. The results suggested that the non-isothermal crystallisation behaviour of polyethylene (PE)-g nanocomposites relied significantly on both the graphene content and the cooling rate. The addition of graphene caused a change in the mechanism of the nucleation and the crystal growth of the multimodal-HDPE, while carbon black was shown to have little effect. Combined Avrami and Ozawa equations were shown to be effective in describing the non-isothermal crystallisation behaviour of the neat multimodal-HDPE and its nanocomposites. The mean activation energy barrier (ΔE), required for the transportation of the molecular chains from the melt state to the growing crystal surface, gradually diminished as the graphene content increased, which is attributable to the nucleating agent effect of graphene platelets. On the contrary, the synergistic effect resulting from the PE-CB nanocomposite decreased the ΔE of the neat multimodal-HDPE significantly at the lowest carbon black content.
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Affiliation(s)
- Ibrahim A Ahmad
- Department of Materials Science and Metallurgy, University of Cambridge, 27 Charles Babbage Rd, Cambridge CB3 0FS, UK.
| | - Hyun-Kyung Kim
- Department of Materials Science and Metallurgy, University of Cambridge, 27 Charles Babbage Rd, Cambridge CB3 0FS, UK.
- Gwangju Bio/Energy R&D Center, Korea Institute of Energy Research (KIER), 270-25 Samso-ro, Buk-gu, Gwangju 61003, Korea.
| | - Suleyman Deveci
- Innovation Centre, Borouge Pte Ltd., PO BOX 6951 Abu Dhabi, UAE.
| | - R Vasant Kumar
- Department of Materials Science and Metallurgy, University of Cambridge, 27 Charles Babbage Rd, Cambridge CB3 0FS, UK.
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155
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Battaglini M, Tapeinos C, Cavaliere I, Marino A, Ancona A, Garino N, Cauda V, Palazon F, Debellis D, Ciofani G. Design, Fabrication, and In Vitro Evaluation of Nanoceria-Loaded Nanostructured Lipid Carriers for the Treatment of Neurological Diseases. ACS Biomater Sci Eng 2019; 5:670-682. [PMID: 33405830 DOI: 10.1021/acsbiomaterials.8b01033] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Neurodegenerative diseases comprise a large group of disorders characterized by a dramatic synaptic connections loss, occurring as a result of neurodegeneration, which is closely related to the overproduction of reactive oxygen and nitrogen species. Currently, the treatment of neurodegenerative diseases has been limited mainly because of the inability of the synthesized delivery systems to cross the blood-brain barrier and to successfully deliver their therapeutic cargo to the diseased tissue. Taking into consideration the aforementioned limitations, we designed a lipid-based nanotherapeutic vector composed of biomimetic lipids and CeO2 nanoparticles (nanoceria, NC). NC have shown to be a promising tool for the treatment of several pathological conditions ranging from cancer to neurological diseases, mainly because of their antioxidant properties, while lipid-based structures have been shown to have an inherent ability to cross the blood-brain barrier. The lipid-based nanotherapeutics were successfully fabricated using a combination of ultrasonication and high-pressure homogenization techniques, and they were fully characterized morphologically and physicochemically. Their antioxidant ability was demonstrated using electron paramagnetic resonance spectroscopy and antioxidant assays. These innovative nanotherapeutics demonstrated a higher colloidal stability with respect to free NC, preserving at the same time their antioxidant properties. Finally, the ability of the lipid carriers to cross a model of the blood-brain barrier and to be internalized by neurons, acting both as neuroprotective and pro-neurogenic agents, was demonstrated using single- and triple-culture systems.
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Affiliation(s)
- Matteo Battaglini
- Istituto Italiano di Tecnologia, Smart Bio-Interfaces, Viale Rinaldo Piaggio 34, 56025 Pontedera, Pisa, Italy.,Scuola Superiore Sant'Anna, The Biorobotics Institute, Viale Rinaldo Piaggio 34, 56025 Pontedera, Pisa, Italy
| | - Christos Tapeinos
- Istituto Italiano di Tecnologia, Smart Bio-Interfaces, Viale Rinaldo Piaggio 34, 56025 Pontedera, Pisa, Italy
| | - Ivana Cavaliere
- Politecnico di Torino, Department of Mechanical and Aerospace Engineering, Corso Duca degli Abruzzi 24, 10129 Torino, Italy
| | - Attilio Marino
- Istituto Italiano di Tecnologia, Smart Bio-Interfaces, Viale Rinaldo Piaggio 34, 56025 Pontedera, Pisa, Italy
| | - Andrea Ancona
- Politecnico di Torino, Department of Applied Science and Technology, Corso Duca degli Abruzzi 24, 10129 Torino, Italy
| | - Nadia Garino
- Politecnico di Torino, Department of Applied Science and Technology, Corso Duca degli Abruzzi 24, 10129 Torino, Italy.,Istituto Italiano di Tecnologia, Center for Sustainable Future Technologies, Corso Trento 21, 10129 Torino, Italy
| | - Valentina Cauda
- Politecnico di Torino, Department of Applied Science and Technology, Corso Duca degli Abruzzi 24, 10129 Torino, Italy.,Istituto Italiano di Tecnologia, Center for Sustainable Future Technologies, Corso Trento 21, 10129 Torino, Italy
| | - Francisco Palazon
- Istituto Italiano di Tecnologia, Nanochemistry, Via Morego 30, 16163 Genova, Italy
| | - Doriana Debellis
- Istituto Italiano di Tecnologia, Electron Microscopy Facility, Via Morego 30, 16163 Genova, Italy
| | - Gianni Ciofani
- Istituto Italiano di Tecnologia, Smart Bio-Interfaces, Viale Rinaldo Piaggio 34, 56025 Pontedera, Pisa, Italy.,Politecnico di Torino, Department of Mechanical and Aerospace Engineering, Corso Duca degli Abruzzi 24, 10129 Torino, Italy
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156
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Xie J, Gong L, Zhu S, Yong Y, Gu Z, Zhao Y. Emerging Strategies of Nanomaterial-Mediated Tumor Radiosensitization. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1802244. [PMID: 30156333 DOI: 10.1002/adma.201802244] [Citation(s) in RCA: 196] [Impact Index Per Article: 39.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 06/08/2018] [Indexed: 05/23/2023]
Abstract
Nano-radiosensitization has been a hot concept for the past ten years, and the nanomaterial-mediated tumor radiosensitization method is mainly focused on increasing intracellular radiation deposition by high atomic number (high Z) nanomaterials, particularly gold (Au)-mediated radiation enhancement. Recently, various new nanomaterial-mediated radiosensitive approaches have been successively reported, such as catalyzing reactive oxygen species (ROS) generation, consuming intracellular reduced glutathione (GSH), overcoming tumor hypoxia, and various synergistic radiotherapy ways. These strategies may open a new avenue for enhancing the radiotherapeutic effect and avoiding its side effects. Nevertheless, reviews systematically summarizing these newly emerging methods and their radiosensitive mechanisms are still rare. Therefore, the general strategies of nanomaterial-mediated tumor radiosensitization are comprehensively summarized, particularly aiming at introducing the emerging radiosensitive methods. The strategies are divided into three general parts. First, methods on account of the intrinsic radiosensitive properties of nanoradiosensitizers for radiosensitization are highlighted. Then, newly developed synergistic strategies based on multifunctional nanomaterials for enhancing radiotherapy efficacy are emphasized. Third, nanomaterial-mediated radioprotection approaches for increasing the radiotherapeutic ratio are discussed. Importantly, the clinical translation of nanomaterial-mediated tumor radiosensitization is also covered. Finally, further challenges and outlooks in this field are discussed.
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Affiliation(s)
- Jiani Xie
- Prof. Z. Gu, Prof. Y. Zhao, CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
| | - Linji Gong
- Prof. Z. Gu, Prof. Y. Zhao, CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
| | - Shuang Zhu
- Prof. Z. Gu, Prof. Y. Zhao, CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
| | - Yuan Yong
- Prof. Z. Gu, Prof. Y. Zhao, CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhanjun Gu
- Prof. Z. Gu, Prof. Y. Zhao, CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
- College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yuliang Zhao
- Prof. Z. Gu, Prof. Y. Zhao, CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
- College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
- CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Chinese Academy of Sciences, Beijing, 100190, China
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157
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Massella D, Ancona A, Garino N, Cauda V, Guan J, Salaun F, Barresi AA, Ferri A. Preparation of bio-functional textiles by surface functionalization of cellulose fabrics with caffeine loaded nanoparticles. ACTA ACUST UNITED AC 2018. [DOI: 10.1088/1757-899x/460/1/012044] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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158
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Wang Y, Kong W, Wang L, Zhang JZ, Li Y, Liu X, Li Y. Optimizing oxygen functional groups in graphene quantum dots for improved antioxidant mechanism. Phys Chem Chem Phys 2018; 21:1336-1343. [PMID: 30574959 DOI: 10.1039/c8cp06768f] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The development of new antioxidants with quick absorbance of free radicals and excellent biocompatibility has drawn intensive attention in recent years. Graphene quantum dots (GQDs) seemed to be one of the most promising antioxidants because of their appropriate antioxidant activity, unique structure, excellent biocompatibility, and low toxicity. However, the relatively low antioxidant activity in comparison with inorganic semiconductor materials and unclear antioxidant mechanism limited their application in cells. In this paper, we further explored their antioxidant mechanism by focusing on the relationship between antioxidant activity and surface oxygen functional groups. The total oxygen fraction was controlled by post-preparation reduction using NaBH4 and the type of oxygen functional groups was adjusted by free radicals during the preparation of GQDs. The degree of reduction and content of surface oxygen groups were determined by X-ray photoelectron spectroscopy (XPS), and the antioxidant activity was obtained by scavenging of 1,1-diphenyl-2-picryl-hydrazyl (DPPH˙) and hydroxyl (˙OH) free radicals. Based on the analysis of XPS, Raman, and Fourier-transform infrared (FT-IR) spectra, the relationship between antioxidant activity and the surface oxygen groups of GQDs was obtained, and the antioxidant mechanism of GQDs was revealed with a particular specification of each oxygen group in the antioxidant activity of GQDs, meanwhile, the biocompatibility of GQDs has been demonstrated by cytotoxicity tests. We hope that our results will provide a new insight into a complete antioxidant mechanism of GQDs.
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Affiliation(s)
- Yingmin Wang
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China.
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159
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Ahmad IA, Koziol KKK, Deveci S, Kim HK, Kumar RV. Advancing the Use of High-Performance Graphene-Based Multimodal Polymer Nanocomposite at Scale. NANOMATERIALS 2018; 8:nano8110947. [PMID: 30453602 PMCID: PMC6266415 DOI: 10.3390/nano8110947] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 11/14/2018] [Accepted: 11/14/2018] [Indexed: 01/17/2023]
Abstract
The production of an innovative, high-performance graphene-based polymer nanocomposite using cost-effective techniques was pursued in this study. Well-dispersed and uniformly distributed graphene platelets within a polymer matrix, with strong interfacial bonding between the platelets and the matrix, provided an optimal nanocomposite system for industrial interest. This study reports on the reinforcement of high molecular weight multimodal-high-density polyethylene reinforced by a microwave-induced plasma graphene, using melt intercalation. The tailored process included designing a suitable screw configuration, paired with coordinating extruder conditions and blending techniques. This enabled the polymer to sufficiently degrade, predominantly through thermomechanical-degradation, as well as thermo-oxidative degradation, which subsequently created a suitable medium for the graphene sheets to disperse readily and distribute evenly within the polymer matrix. Different microscopy techniques were employed to prove the effectiveness. This was then qualitatively assessed by Raman spectroscopy, X-ray diffraction, rheology, mechanical testing, density measurements, thermal expansion, and thermogravimetric analysis, confirming both the originality as well as the effectiveness of the process.
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Affiliation(s)
- Ibrahim A Ahmad
- Department of Materials Science and Metallurgy, University of Cambridge, 27 Charles Babbage Rd, Cambridge CB3 0FS, UK.
| | - Krzysztof K K Koziol
- Enhanced Composites and Structures Centre, School of Aerospace, Transport and Manufacturing, Cranfield University, Cranfield MK43 0AL, UK.
| | - Suleyman Deveci
- Innovation Centre, Borouge Pte. Ltd., PO Box 6951, Abu Dhabi, UAE.
| | - Hyun-Kyung Kim
- Department of Materials Science and Metallurgy, University of Cambridge, 27 Charles Babbage Rd, Cambridge CB3 0FS, UK.
- Gwangju Bio/Energy R&D Center, Korea Institute of Energy Research (KIER), 270-25 Samso-ro, Buk-gu, Gwangju 61003, Korea.
| | - Ramachandran Vasant Kumar
- Department of Materials Science and Metallurgy, University of Cambridge, 27 Charles Babbage Rd, Cambridge CB3 0FS, UK.
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160
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Wierzbicki M, Sawosz E, Strojny B, Jaworski S, Grodzik M, Chwalibog A. NF-κB-related decrease of glioma angiogenic potential by graphite nanoparticles and graphene oxide nanoplatelets. Sci Rep 2018; 8:14733. [PMID: 30283098 PMCID: PMC6170400 DOI: 10.1038/s41598-018-33179-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 09/18/2018] [Indexed: 12/19/2022] Open
Abstract
Gliomas develop an expanded vessel network and a microenvironment characterized by an altered redox environment, which produces high levels of reactive oxygen species (ROS) and reactive nitrogen species (RNS) that fuel its growth and malignancy. ROS and RNS can influence tumor cell malignancy via the redox-regulated transcription factor NF-κB, whose activation is further regulated by the mutation status of p53. The objective of this study was to assess the influence of graphite nanoparticles (NG) and graphene oxide nanoplatelets (nGO) on the angiogenic potential of glioma cell lines with different p53 statuses. Nanoparticle treatment of glioma cells decreased the angiogenesis of human umbilical vein endothelial cells (HUVEC) cocultured with U87 (p53 wild type) and was not effective for U118 (p53 mutant) cells. Nanoparticle activity was related to the decreased level of intracellular ROS and RNS, which downregulated NF-κB signaling depending on the p53 status of the cell line. Activation of NF-κB signaling affected downstream protein levels of interleukin 6, interleukin 8, growth-regulated oncogene α, and monocyte chemotactic protein 1. These results indicate that the activity of NG and nGO can be regulated by the mutation status of glioma cells and therefore give new insights into the use of nanoparticles in personalized biomedical applications regarding glioma angiogenesis and its microenvironment.
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Affiliation(s)
- Mateusz Wierzbicki
- Division of Nanobiotechnology, Warsaw University of Life Science, Ciszewskiego 8, 02-786, Warsaw, Poland.
| | - Ewa Sawosz
- Division of Nanobiotechnology, Warsaw University of Life Science, Ciszewskiego 8, 02-786, Warsaw, Poland
| | - Barbara Strojny
- Division of Nanobiotechnology, Warsaw University of Life Science, Ciszewskiego 8, 02-786, Warsaw, Poland
| | - Sławomir Jaworski
- Division of Nanobiotechnology, Warsaw University of Life Science, Ciszewskiego 8, 02-786, Warsaw, Poland
| | - Marta Grodzik
- Division of Nanobiotechnology, Warsaw University of Life Science, Ciszewskiego 8, 02-786, Warsaw, Poland
| | - André Chwalibog
- Department of Veterinary and Animal Sciences, University of Copenhagen, Groennegaardsvej 3, 1870, Frederiksberg, Denmark
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161
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Xie J, Wang C, Zhao F, Gu Z, Zhao Y. Application of Multifunctional Nanomaterials in Radioprotection of Healthy Tissues. Adv Healthc Mater 2018; 7:e1800421. [PMID: 30019546 DOI: 10.1002/adhm.201800421] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 06/18/2018] [Indexed: 01/06/2023]
Abstract
Radiotherapy has been extensively used in clinic for malignant tumors treatment. However, a severe challenge of it is that the ionizing radiation needed to kill tumors inevitably causes damage to surrounding normal tissues. Although some of the molecular radioprotective drugs, such as amifostine, have been used as clinical adjuvants to radio-protect healthy tissues, their shortcomings such as short systemic circulation time and fast biological clearing from the body largely hinder the sustained bioactivity. Recently, with the rapid development of nanotechnology in the biological field, the multifunctional nanomaterials not only establish powerful drug delivery systems to improve the molecular radioprotective drugs' biological availability, but also open a new route to develop neozoic radioprotective agents because some nanoparticles possess intrinsic radioprotective abilities. Therefore, considering these overwhelming superiorities, this review systematically summarizes the advances in healthy tissue radioprotection applications of multifunctional nanomaterials. Furthermore, this review also points out a perspective of nanomaterial designs for radioprotection applications and discusses the challenges and future outlooks of the nanomaterial-mediated radioprotection.
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Affiliation(s)
- Jiani Xie
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety; Institute of High Energy Physics; Chinese Academy of Sciences; Beijing 100049 China
| | - Chengyan Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety; Institute of High Energy Physics; Chinese Academy of Sciences; Beijing 100049 China
| | - Feng Zhao
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety; Institute of High Energy Physics; Chinese Academy of Sciences; Beijing 100049 China
| | - Zhanjun Gu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety; Institute of High Energy Physics; Chinese Academy of Sciences; Beijing 100049 China
- College of Materials Science and Optoelectronic Technology; University of Chinese Academy of Sciences; Beijing 100049 China
| | - Yuliang Zhao
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety; Institute of High Energy Physics; Chinese Academy of Sciences; Beijing 100049 China
- College of Materials Science and Optoelectronic Technology; University of Chinese Academy of Sciences; Beijing 100049 China
- CAS Center for Excellence in Nanoscience; National Center for Nanoscience and Technology of China; Chinese Academy of Sciences; Beijing 100190 China
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162
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Graphene-based materials: The missing piece in nanomedicine? Biochem Biophys Res Commun 2018; 504:686-689. [DOI: 10.1016/j.bbrc.2018.09.029] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2018] [Accepted: 09/06/2018] [Indexed: 12/12/2022]
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163
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Hastak V, Bandi S, Kashyap S, Singh S, Luqman S, Lodhe M, Peshwe DR, Srivastav AK. Antioxidant efficacy of chitosan/graphene functionalized superparamagnetic iron oxide nanoparticles. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2018; 29:154. [PMID: 30269256 DOI: 10.1007/s10856-018-6163-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Accepted: 09/18/2018] [Indexed: 06/08/2023]
Abstract
The antioxidant potential of superparamagnetic iron oxide nanoparticles functionalized with chitosan and graphene were examined in the present work. Coprecipitation technique was followed for the synthesis of iron oxide nanoparticles. Graphene-iron oxide nanocomposites were synthesized by mechanical mixing followed by the heat treatment at moderate temperature. The chitosan coated iron oxide nanoparticles were prepared by dispersing nanoparticles in chitosan solution. The nanoparticles/nanocomposites were characterized using XRD, SEM, TEM and HAADF-STEM for phase structure, morphology and elemental analysis. The superparamagnetic behavior of nanoparticles/nanocomposites were confirmed by magnetic measurements using vibrating sample magnetometry. Antioxidant efficacy of these nanoparticles/nanocomposites were investigated in terms of free radical scavenging and reducing potential using an array of in vitro assay system. Ferric reducing antioxidant power (FRAP) and 2,2'-diphenyl-1-picrylhydrazyl (DPPH) were used for the antioxidant capacity. The investigation suggests that the graphene improves the antiradical response of iron oxide nanoparticles at higher concentration which is almost comparable to the ascorbic acid used as standard.
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Affiliation(s)
- Vikram Hastak
- Department of Metallurgical and Materials Engineering, VNIT, Nagpur, India
| | - Suresh Bandi
- Department of Metallurgical and Materials Engineering, VNIT, Nagpur, India
| | - Sanjay Kashyap
- Department of Physics, BML Munjal University, Gurgaon, India
| | - Shilpi Singh
- Department of Molecular Bioprospection, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, India
| | - Suaib Luqman
- Department of Molecular Bioprospection, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, India
| | - Mangesh Lodhe
- Department of Metallurgical and Materials Engineering, Indian Institute of Technology Madras, Chennai, India
| | - D R Peshwe
- Department of Metallurgical and Materials Engineering, VNIT, Nagpur, India
| | - Ajeet K Srivastav
- Department of Metallurgical and Materials Engineering, VNIT, Nagpur, India.
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164
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Yang J, Alam SB, Yu L, Chan E, Zheng H. Dynamic behavior of nanoscale liquids in graphene liquid cells revealed by in situ transmission electron microscopy. Micron 2018; 116:22-29. [PMID: 30265880 DOI: 10.1016/j.micron.2018.09.009] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 09/10/2018] [Accepted: 09/14/2018] [Indexed: 12/24/2022]
Abstract
Recent advances in graphene liquid cells for in situ transmission electron microscopy (TEM) have opened many opportunities for the study of materials transformations and chemical reactions in liquids with high spatial resolution. However, the behavior of thin liquids encapsulated in a graphene liquid cell has not been fully understood. Here, we report real time TEM imaging of the nanoscale dynamic behavior of liquids in graphene nanocapillaries. Our observations reveal that the interfaces between liquid and gas bubble can fluctuate, leading to the generation of liquid nanodroplets near the interfaces. Liquid nanodroplets often show irregular shape with dynamic changes of their configuration under the electron beam. We consider that the dynamic motion of liquid-gas interfaces might be introduced by the electrostatic energy from transiently charged interfaces. We find that improving the wettability of graphene liquid cells by ultraviolet-ozone treatment can significantly modify the dynamic motion of the encapsulated liquids. Our study provides valuable information of the interactions between liquid and graphene under the electron beam, and it also offers key insights on the nanoscale fluid dynamics in confined spaces.
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Affiliation(s)
- Jiwoong Yang
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States
| | - Sardar B Alam
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States
| | - Lei Yu
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States; Department of Materials Science and Engineering, University of California, Berkeley, CA 94720, United States
| | - Emory Chan
- The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States
| | - Haimei Zheng
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States; Department of Materials Science and Engineering, University of California, Berkeley, CA 94720, United States.
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165
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Baggio AR, Santos MSC, Souza FHV, Nunes RB, Souza PEN, Báo SN, Patrocinio AOT, Bahnemann DW, Silva LP, Sales MJA, Paterno LG. Quenching Effects of Graphene Oxides on the Fluorescence Emission and Reactive Oxygen Species Generation of Chloroaluminum Phthalocyanine. J Phys Chem A 2018; 122:6842-6851. [PMID: 30074796 DOI: 10.1021/acs.jpca.8b05660] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The photophysical behavior and reactive oxygen species (ROS) generation by chloroaluminum phthalocyanine (AlClPc) are evaluated by steady state absorption/emission, transient emission, and electron paramagnetic resonance spectroscopies in the presence of graphene oxide (GO), reduced graphene oxide (RGO), and carboxylated nanographene oxide (NGO). AlClPc and graphene oxides form a supramolecular structure stabilized by π-π interactions, which quantitatively quenches fluorescence emission and suppresses ROS generation. These effects occur even when graphenes are previously functionalized with Pluronic F-127. A small part of quenching is due to an inner filter effect, in which graphene oxides compete with AlClPc for light absorption. Nonetheless, most of the (static) quenching arises on the formation of a nonemissive ground state complex between AlClPc and graphene oxides. The efficiency of graphene oxides on the fluorescence quenching and ROS generation suppression follows the order: GO < NGO < RGO.
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Affiliation(s)
- Alan R Baggio
- Laboratory of Research on Polymers and Nanomaterials, Institute of Chemistry , University of Brasilia , Brasília DF 70904-970 , Brazil
| | - Mayara S C Santos
- Institute of Biology , University of Brasília , Brasilia DF 70919-970 , Brazil
| | - Fabiane H V Souza
- Institute of Biology , University of Brasília , Brasilia DF 70919-970 , Brazil.,College of Ceilândia , University of Brasilia , Brasilia DF 72220-275 , Brazil
| | - Rodrigo B Nunes
- Institute of Physics , University of Brasilia , Brasilia DF 70910-900 , Brazil
| | | | - Sônia N Báo
- Institute of Biology , University of Brasília , Brasilia DF 70919-970 , Brazil
| | - Antonio Otavio T Patrocinio
- Laboratory of Photochemistry and Materials Science, Institute of Chemistry , Federal University of Uberlandia , Uberlandia , Brazil.,Institute of Technical Chemistry , Leibniz University Hannover , Hannover , Germany
| | - Detlef W Bahnemann
- Institute of Technical Chemistry , Leibniz University Hannover , Hannover , Germany.,Laboratory of "Photoactive Nanocomposite Materials" , Saint-Petersburg State University , Saint-Petersburg , Russia
| | - Luciano P Silva
- Embrapa Genetic Resources and Biotechnology, PBI , Laboratory of Nanobiotechnology (LNANO) , Brasília DF 70770-917 , Brazil
| | - Maria José A Sales
- Laboratory of Research on Polymers and Nanomaterials, Institute of Chemistry , University of Brasilia , Brasília DF 70904-970 , Brazil
| | - Leonardo G Paterno
- Laboratory of Research on Polymers and Nanomaterials, Institute of Chemistry , University of Brasilia , Brasília DF 70904-970 , Brazil
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166
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Lakshmanan R, Maulik N. Graphene-based drug delivery systems in tissue engineering and nanomedicine. Can J Physiol Pharmacol 2018; 96:869-878. [PMID: 30136862 DOI: 10.1139/cjpp-2018-0225] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The time and dosage form of graphene derivatives have been found to determine therapeutic and toxic windows in several cell lines and preclinical models. The enhanced biological action of graphene derivatives is made possible by altering the chemistry of native materials via surface conjugation, or by changing the oxidation state. The high level of chemical reactivity vested in the planar structure of graphene can be used to load various drugs and biomolecules with maximum radical scavenging effect. The integration of graphene and polymers brings electrical conductivity to scaffolds, making them ideal for cardiac or neuronal tissue engineering. Drawbacks associated with graphene-based materials for biomedical applications include defect-free graphene formation and heteroatom contamination during synthesis process; reduced availability of sp2 hybridized carbon centers due to serum proteins masking; and poor availability of data pertaining to in vivo clearance of graphene-based formulations. Personalized medicine is an emerging area of alternative treatments, which in combination with graphene-based nanobiomaterials, has revolutionary potential for the development of individualized nanocarriers to treat highly challenging diseases.
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Affiliation(s)
- Rajesh Lakshmanan
- Molecular Cardiology and Angiogenesis Laboratory, Department of Surgery, University of Connecticut Health, Farmington, CT 06030, USA.,Molecular Cardiology and Angiogenesis Laboratory, Department of Surgery, University of Connecticut Health, Farmington, CT 06030, USA
| | - Nilanjana Maulik
- Molecular Cardiology and Angiogenesis Laboratory, Department of Surgery, University of Connecticut Health, Farmington, CT 06030, USA.,Molecular Cardiology and Angiogenesis Laboratory, Department of Surgery, University of Connecticut Health, Farmington, CT 06030, USA
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167
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Sabounchei SJ, Hashemi A, Sayadi M, Bayat M, Sedghi A, Karamian R, Moazzami Farida SH, Gable RW. New highly soluble [6,6]-methanofullerene derivatives incorporating both α-keto and α, β-ester stabilized phosphorus ylides; synthesis, characterization, theoretical and biological studies. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.03.124] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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168
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Cheng X, Ni X, Wu R, Chong Y, Gao X, Ge C, Yin JJ. Evaluation of the structure–activity relationship of carbon nanomaterials as antioxidants. Nanomedicine (Lond) 2018. [DOI: 10.2217/nnm-2017-0314] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Aim: To develop the potential application of carbon nanomaterials as antioxidants calls for better understanding of how the specific structure affects their antioxidant activity. Materials & methods: Several typical carbon nanomaterials, including graphene quantum dots and fullerene derivatives were characterized and their radical scavenging activities were evaluated; in addition, the in vitro and in vivo radioprotection experiments were performed. Results: These carbon nanomaterials can efficiently scavenge free radicals in a structure-dependent manner. In vitro assays demonstrate that administration of these carbon nanomaterials markedly increases the surviving fraction of cells exposed to ionizing radiation. Moreover, in vivo experiments confirm that their administration can also increase the survival rates of mice exposed to radiation. Conclusion: All results confirm that large, buckyball-shaped fullerenes show the strongest antioxidant properties and the best radioprotective efficiency. Our work will be useful in guiding the design and optimization of nanomaterials for potential antioxidant and radioprotection bio-applications.
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Affiliation(s)
- Xiaju Cheng
- School for Radiological & Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, PR China
| | - Xiaohu Ni
- School for Radiological & Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, PR China
| | - Renfei Wu
- School for Radiological & Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, PR China
| | - Yu Chong
- School for Radiological & Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, PR China
| | - Xingfa Gao
- College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang 330022, PR China
| | - Cuicui Ge
- School for Radiological & Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, PR China
| | - Jun-Jie Yin
- Division of Bioanalytical Chemistry & Division of Analytical Chemistry, Office of Regulatory Science, Center for Food Safety & Applied Nutrition, US Food & Drug Administration, College Park, MD 20740, USA
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169
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Ussia M, Bruno E, Spina E, Vitalini D, Pellegrino G, Ruffino F, Privitera V, Carroccio SC. Freestanding photocatalytic materials based on 3D graphene and polyporphyrins. Sci Rep 2018; 8:5001. [PMID: 29568060 PMCID: PMC5864880 DOI: 10.1038/s41598-018-23345-y] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 03/08/2018] [Indexed: 12/30/2022] Open
Abstract
A new concept in the formulation of hybrid nanostructured materials combining high quality graphene 3D supported by Nickel foam and polyporphyrins for visible light photocatalytic application is here reported. Our innovative approach involves the development of a freestanding device able to: i) offer a high surface area to bind the photosensitizers by π-π interactions, and ii) enhance stability and photocatalytic efficiency by using cyclic porphyrin polymers. For these purposes, homo- and co-polymerization reactions by using different porphyrin (free or zinc complexed) monomers were performed. The microscopic structures and morphology of graphene polymer nanocomposites were investigated by using Scanning Electron Microscopy (SEM), X-ray photoelectron spectroscopy (XPS) and Atomic Force Microscopy (AFM). Finally, photocatalytic activity under visible light irradiation of the obtained nanocomposites was tested, by using methylene blue (MB) as organic pollutant. The obtained data suggested that hindered cyclic polymeric structures stacked on graphene surface by non-covalent interactions, restrict the formation of non photoactive aggregates and, as a consequence, induce an enhancement of photocatalytic activity. Remarkably, our systems show a degradation efficiency in the visible-light range much higher than other similar devices containing nanoporphyrin units reported in literature.
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Affiliation(s)
- Martina Ussia
- Department of Physics and Astronomy, University of Catania, via Santa Sofia 64, 95123, Catania, Italy.,CNR-IMM, Via Santa Sofia 64, 95123, Catania, Italy
| | - Elena Bruno
- Department of Physics and Astronomy, University of Catania, via Santa Sofia 64, 95123, Catania, Italy
| | | | | | | | - Francesco Ruffino
- Department of Physics and Astronomy, University of Catania, via Santa Sofia 64, 95123, Catania, Italy
| | | | - Sabrina C Carroccio
- CNR-IMM, Via Santa Sofia 64, 95123, Catania, Italy. .,CNR-IPCB, Via Paolo Gaifami 18, 95126, Catania, Italy.
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170
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Han J, Kim YS, Lim MY, Kim HY, Kong S, Kang M, Choo YW, Jun JH, Ryu S, Jeong HY, Park J, Jeong GJ, Lee JC, Eom GH, Ahn Y, Kim BS. Dual Roles of Graphene Oxide To Attenuate Inflammation and Elicit Timely Polarization of Macrophage Phenotypes for Cardiac Repair. ACS NANO 2018; 12:1959-1977. [PMID: 29397689 DOI: 10.1021/acsnano.7b09107] [Citation(s) in RCA: 163] [Impact Index Per Article: 27.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Development of localized inflammatory environments by M1 macrophages in the cardiac infarction region exacerbates heart failure after myocardial infarction (MI). Therefore, the regulation of inflammation by M1 macrophages and their timely polarization toward regenerative M2 macrophages suggest an immunotherapy. Particularly, controlling cellular generation of reactive oxygen species (ROS), which cause M1 differentiation, and developing M2 macrophage phenotypes in macrophages propose a therapeutic approach. Previously, stem or dendritic cells were used in MI for their anti-inflammatory and cardioprotective potentials and showed inflammation modulation and M2 macrophage progression for cardiac repair. However, cell-based therapeutics are limited due to invasive cell isolation, time-consuming cell expansion, labor-intensive and costly ex vivo cell manipulation, and low grafting efficiency. Here, we report that graphene oxide (GO) can serve as an antioxidant and attenuate inflammation and inflammatory polarization of macrophages via reduction in intracellular ROS. In addition, GO functions as a carrier for interleukin-4 plasmid DNA (IL-4 pDNA) that propagates M2 macrophages. We synthesized a macrophage-targeting/polarizing GO complex (MGC) and demonstrated that MGC decreased ROS in immune-stimulated macrophages. Furthermore, DNA-functionalized MGC (MGC/IL-4 pDNA) polarized M1 to M2 macrophages and enhanced the secretion of cardiac repair-favorable cytokines. Accordingly, injection of MGC/IL-4 pDNA into mouse MI models attenuated inflammation, elicited early polarization toward M2 macrophages, mitigated fibrosis, and improved heart function. Taken together, the present study highlights a biological application of GO in timely modulation of the immune environment in MI for cardiac repair. Current therapy using off-the-shelf material GO may overcome the shortcomings of cell therapies for MI.
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Affiliation(s)
- Jin Han
- School of Chemical and Biological Engineering, Seoul National University , Seoul, 08826, Republic of Korea
| | - Yong Sook Kim
- Biomedical Research Institute, Chonnam National University Hospital , Gwangju, 61469, Republic of Korea
| | - Min-Young Lim
- School of Chemical and Biological Engineering, Seoul National University , Seoul, 08826, Republic of Korea
| | - Han Young Kim
- School of Chemical and Biological Engineering, Seoul National University , Seoul, 08826, Republic of Korea
| | - Saerom Kong
- School of Chemical and Biological Engineering, Seoul National University , Seoul, 08826, Republic of Korea
| | - Mikyung Kang
- Interdisciplinary Program of Bioengineering, Seoul National University , Seoul, 08826, Republic of Korea
| | - Yeon Woong Choo
- School of Chemical and Biological Engineering, Seoul National University , Seoul, 08826, Republic of Korea
| | - Ju Hee Jun
- Cell Regeneration Research Center, Chonnam National University Hospital , Gwangju, 61469, Republic of Korea
| | - Seungmi Ryu
- Interdisciplinary Program of Bioengineering, Seoul National University , Seoul, 08826, Republic of Korea
| | - Hye-Yun Jeong
- Cell Regeneration Research Center, Chonnam National University Hospital , Gwangju, 61469, Republic of Korea
| | - Jooyeon Park
- School of Chemical and Biological Engineering, Seoul National University , Seoul, 08826, Republic of Korea
| | - Gun-Jae Jeong
- School of Chemical and Biological Engineering, Seoul National University , Seoul, 08826, Republic of Korea
| | - Jong-Chan Lee
- School of Chemical and Biological Engineering, Seoul National University , Seoul, 08826, Republic of Korea
| | - Gwang Hyeon Eom
- Department of Pharmacology, Chonnam National University Medical School , Gwangju, 61469, Republic of Korea
| | - Youngkeun Ahn
- Cell Regeneration Research Center, Chonnam National University Hospital , Gwangju, 61469, Republic of Korea
- Department of Cardiology, Chonnam National University Hospital , Gwangju, 61649, Republic of Korea
- BK21 PLUS Centre for Creative Biomedical Scientists, Chonnam National University Medical School , 160 Baekseo-ro, Gwangju, 61469, Republic of Korea
| | - Byung-Soo Kim
- School of Chemical and Biological Engineering, Seoul National University , Seoul, 08826, Republic of Korea
- Interdisciplinary Program of Bioengineering, Seoul National University , Seoul, 08826, Republic of Korea
- Institute of Chemical Processes, Seoul National University , Seoul, 08826, Republic of Korea
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171
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Zhou Z, Xu Z, Wang F, Lu Y, Yin P, Jiang C, Liu Y, Li H, Yu X, Sun Y. New strategy to rescue the inhibition of osteogenesis of human bone marrow-derived mesenchymal stem cells under oxidative stress: combination of vitamin C and graphene foams. Oncotarget 2018; 7:71998-72010. [PMID: 27713129 PMCID: PMC5342139 DOI: 10.18632/oncotarget.12456] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Accepted: 09/29/2016] [Indexed: 01/10/2023] Open
Abstract
To rescue the oxidative stress induced inhibition of osteogenesis, vitamin C (VC) was chemically modified onto three-dimensional graphene foams (3D GFs), then their regulation on osteogenesis of human bone marrow-derived mesenchymal stem cells (BM-MSCs) was studied. Combined action of VC + GF significantly decreased H2O2-induced oxidative stress, and rescued H2O2-inhibited cell viability, differentiation and osteogenesis of BM-MSCs in vitro. Further studies revealed that Wnt pathway may be involved in this protection of osteogenesis. Furthermore, an in vivo mouse model of BM-MSCs transplantation showed that VC + GF remarkably rescued oxidative stress inhibited calcium content and bone formation. The combination of VC and GF exhibited more pronounced protective effects against oxidative stress induced inhibition of osteogenesis, compared to monotherapy of VC or GF. Our study proposed a new strategy in stem cell-based therapies for treating bone diseases.
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Affiliation(s)
- Zubin Zhou
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Zhengliang Xu
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Feng Wang
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Ye Lu
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Peipei Yin
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Chaolai Jiang
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Yingjie Liu
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Hua Li
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xiaowei Yu
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Yuqiang Sun
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China
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172
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Tiwari MK, Mishra PC. Electron transfer in biologically important systems: Polycyclic aromatic hydrocarbons, DNA bases and free radicals. JOURNAL OF THEORETICAL & COMPUTATIONAL CHEMISTRY 2018. [DOI: 10.1142/s0219633618500086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Occurrence of electron transfer was studied for different combinations of polycyclic aromatic hydrocarbons (PAHs) and DNA bases as electron donors or acceptors and free radicals only as electron acceptors. Geometries of all the molecules and radicals were optimized in aqueous medium employing the polarizable continuum model. Single electron transfer (SET) and sequential proton loss electron transfer mechanisms were investigated employing Gibbs free energies of the appropriate neutral, anionic and cationic species. Barrier energies involved in these phenomena were calculated using the Marcus theory. The SET barrier energies were found to be linearly correlated with [Formula: see text] (Electron affinities of acceptors – Ionization potentials of donors). SET barrier energies from the DNA bases to the PAHs follow the order Cy [Formula: see text] Th [Formula: see text] Ad [Formula: see text] Gu, whereas SET barrier energies from the PAHs to the DNA bases follow the order Gu [Formula: see text] Ad [Formula: see text] Th [Formula: see text] Cy. Thus, guanine, among the DNA bases, is the best electron donor to the PAHs and worst electron acceptor from the same.
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Affiliation(s)
- M. K. Tiwari
- Department of Physics, Institute of Science, Banaras Hindu University, Varanasi 221 005, Uttar Pradesh, India
| | - P. C. Mishra
- Department of Physics, Institute of Science, Banaras Hindu University, Varanasi 221 005, Uttar Pradesh, India
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173
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Thangavel P, Kannan R, Ramachandran B, Moorthy G, Suguna L, Muthuvijayan V. Development of reduced graphene oxide (rGO)-isabgol nanocomposite dressings for enhanced vascularization and accelerated wound healing in normal and diabetic rats. J Colloid Interface Sci 2018; 517:251-264. [PMID: 29428812 DOI: 10.1016/j.jcis.2018.01.110] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Revised: 01/30/2018] [Accepted: 01/31/2018] [Indexed: 01/24/2023]
Abstract
Treatment of chronic non-healing wounds in diabetes is still a major clinical challenge. Here, we have developed reduced graphene oxide (rGO) loaded isabgol nanocomposite scaffolds (Isab + rGO) to treat normal and diabetic wounds. rGO was synthesized by rapid reduction of graphene oxide (GO) under focused solar radiation. Then, rGO was uniformly dispersed into isabgol solution to prepare Isab + rGO nanocomposite scaffolds. These scaffolds were characterized using various physiochemical techniques. Isab + rGO nanocomposite scaffolds showed suitable cell viability, proliferation, and attachment. In vivo experiments were performed using Wistar rats to study the wound healing efficacy of these scaffolds in normal and diabetic rats. Results revealed that rGO stimulated collagen synthesis, collagen crosslinking, wound contraction, and reduced the wound re-epithelialization time significantly compared to control. Histology and immunohistochemistry analyses showed that Isab + rGO scaffold treatment enhanced angiogenesis, collagen synthesis, and deposition in treated wounds. Isab + rGO scaffold treatment also played a major role in shortening the inflammation phase and recruiting macrophages to enhance the early phase of wound healing. Overall, this investigation showed that Isab + rGO scaffold dressing could significantly accelerate the healing of normal and diabetic wounds.
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Affiliation(s)
- Ponrasu Thangavel
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, India
| | - Ramya Kannan
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, India; Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Balaji Ramachandran
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, India
| | - Ganeshkumar Moorthy
- The School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Ein Karem, P.O.Box 12065, Jerusalem 9112102, Israel
| | - Lonchin Suguna
- Department of Biochemistry and Biotechnology, CSIR-Central Leather Research Institute, Adyar, Chennai 600020, India
| | - Vignesh Muthuvijayan
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, India.
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174
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Feng L, Xia W, Wang T, Jiang C, Gong H, Gao B, Jiang Z, Liu X, He J. Structure stability of polyaniline/graphene nanocomposites in gamma-ray environment. J Radioanal Nucl Chem 2018. [DOI: 10.1007/s10967-018-5710-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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175
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Chen PY, Zhang M, Liu M, Wong IY, Hurt RH. Ultrastretchable Graphene-Based Molecular Barriers for Chemical Protection, Detection, and Actuation. ACS NANO 2018; 12:234-244. [PMID: 29165991 PMCID: PMC5780244 DOI: 10.1021/acsnano.7b05961] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
A wide range of technologies requires barrier films to impede molecular transport between the external environment and a desired internal microclimate. Adding stretchability to barrier films would enable the applications in packaging, textiles, and flexible devices, but classical barrier materials utilize dense, ordered molecular architectures that easily fracture under small tensile strain. Here, we show that textured graphene-based coatings can serve as ultrastretchable molecular barriers expandable to 1500% areal strain through programmed unfolding that mimics the elasticity of polymers. These coatings retain barrier function under large deformation and can be conformally applied to planar or curved surfaces, where they are washfast and mechanically robust to cycling. These graphene-polymer bilayer structures also function as sensors or actuators by transducing chemical stimuli into mechanical deformation and electrical resistance change through asymmetric polymer swelling. These results may enable multifunctional fabrics that integrate chemical protection, sensing, and actuation, with further applications as selective barriers, membranes, stretchable electronics, or soft robotics.
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Affiliation(s)
- Po-Yen Chen
- Deparment of Chemical and Biomolecular Engineering, National University of Singapore , Singapore 119077
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176
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Kaufman G, Montejo KA, Michaut A, Majewski PW, Osuji CO. Photoresponsive and Magnetoresponsive Graphene Oxide Microcapsules Fabricated by Droplet Microfluidics. ACS APPLIED MATERIALS & INTERFACES 2017; 9:44192-44198. [PMID: 29172415 DOI: 10.1021/acsami.7b14448] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Fluid compartmentalization by microencapsulation is important in scenarios where protection or controlled release of encapsulated species, or isolation of chemical transformations is the central concern. Realizing responsive encapsulation systems by incorporating functional nanomaterials is of particular interest. We report here on the development of graphene oxide microcapsules enabled by a single-step microfluidic process. Interfacial reaction of epoxide-bearing graphene oxide sheets and an amine-functionalized macromolecular silicone fluid creates a chemically cross-linked film with micronscale thickness at the surface of water-in-oil droplets generated by microfluidic devices. The resulting microcapsules are monodisperse, mechanically resilient, and shape-tunable constructs. Ferrite nanoparticles are incorporated via the aqueous phase and enable microcapsule positioning by a magnetic field. We exploit the photothermal response of graphene oxide to realize microcapsules with photoresponsive release characteristics and show that the microcapsule permeability is significantly enhanced by near-IR illumination. The dual magnetic and photoresponsive characteristics, combined with the use of a single-step process employing biocompatible fluids, represent highly compelling aspects for practical applications.
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Affiliation(s)
- Gilad Kaufman
- Department of Chemical and Environmental Engineering, Yale University , New Haven, Connecticut 06511, United States
| | - Karla A Montejo
- Department of Chemical and Environmental Engineering, Yale University , New Haven, Connecticut 06511, United States
- Department of Biomedical Engineering, Florida International University , Miami, Florida 33174, United States
| | - Arthur Michaut
- Department of Genetics, Harvard Medical School , Boston, Massachusetts 02115, United States
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC): CNRS (UMR 7104)/Inserm U964, Université de Strasbourg , Illkirch 67400, France
| | - Paweł W Majewski
- Department of Chemistry, University of Warsaw , Warsaw 02-096, Poland
| | - Chinedum O Osuji
- Department of Chemical and Environmental Engineering, Yale University , New Haven, Connecticut 06511, United States
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177
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Amani H, Habibey R, Hajmiresmail SJ, Latifi S, Pazoki-Toroudi H, Akhavan O. Antioxidant nanomaterials in advanced diagnoses and treatments of ischemia reperfusion injuries. J Mater Chem B 2017; 5:9452-9476. [PMID: 32264560 DOI: 10.1039/c7tb01689a] [Citation(s) in RCA: 139] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Organ ischemia with inadequate oxygen supply followed by reperfusion (which initiates a complex of inflammatory responses and oxidative stress) occurs in different clinical conditions and surgical procedures including stroke, myocardial infarction, limb ischemia, renal failure, organ transplantation, free-tissue-transfer, cardiopulmonary bypass, and vascular surgery. Even though pharmacological treatments protect against experimental ischemia reperfusion (I/R) injury, there has not been enough success in their application for patient benefits. The main hurdles in the treatment of I/R injury are the lack of diagnosis tools for understanding the complicated chains of I/R-induced signaling events, especially in the acute phase after ischemia, determining the affected regions of the tissue over time, and then, targeting and safe delivery of antioxidants, drugs, peptides, genes and cells to the areas requiring treatment. Besides the innate antioxidant and free radical scavenging properties, some nanoparticles also show higher flexibility in drug delivery and imaging. This review highlights three main approaches in nanoparticle-mediated targeting of I/R injury: nanoparticles (1) as antioxidants for reducing tissue oxidative stress, (2) for targeted delivery of therapeutic agents to the ischemic regions or cells, and (3) for imaging I/R injury at the molecular, cellular or tissue level and monitoring its evolution using contrasts induced by nanoparticles. These approaches can also be combined to realize so called theranostics for providing simultaneous diagnosis of ischemic regions and treatments by targeted delivery.
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Affiliation(s)
- Hamed Amani
- Department of Medical Nanotechnology, Faculty of Advanced Technologies in Medicine, Iran University of Medical Science, Tehran, Iran
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178
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Cherukula K, Nurunnabi M, Jeong YY, Lee YK, Park IK. A targeted graphene nanoplatform carrying histamine dihydrochloride for effective inhibition of leukemia-induced immunosuppression. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2017; 29:734-749. [DOI: 10.1080/09205063.2017.1390382] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Kondareddy Cherukula
- Department of Biomedical Science and BK21 PLUS Centre for Creative Biomedical Scientists, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Md. Nurunnabi
- Department of Green Bioengineering, Korea National University of Transportation, Chungju, Republic of Korea
| | - Yong Yeon Jeong
- Department of Radiology, Chonnam National University Medical School, Chonnam National University Hwasun Hospital, Gwangju, Republic of Korea
| | - Yong-Kyu Lee
- Department of Green Bioengineering, Korea National University of Transportation, Chungju, Republic of Korea
| | - In-Kyu Park
- Department of Biomedical Science and BK21 PLUS Centre for Creative Biomedical Scientists, Chonnam National University Medical School, Gwangju, Republic of Korea
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179
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Atamanov M, Amrousse R, Jandosov J, Hori K, Kerimkulova A, Chenchik D, Kolesnikov B. Combustion Characteristics of HAN-based Green Propellant Assisted with Nanoporous Active Carbons. EURASIAN CHEMICO-TECHNOLOGICAL JOURNAL 2017. [DOI: 10.18321/ectj665] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Combustion of hydroxylammonium nitrate (95 wt.% HAN) ‒ water solution in presence of high specific surface area activated carbons is investigated in a constant-pressure bomb within the pressure range of 1‒6 MPa. The linear burning rate increased for the system of HAN admixed with activated carbons compared to those of the HAN alone. Moreover, the thermal decomposition of HAN (95 wt.%) ‒ water solution spiked with activated carbons was assessed by DTA – TG method. In the presence of activated carbons, the ability to trigger the decomposition at a lower temperature (86 °C vs 185 °C) was observed. The volatile products formed in the course of thermal decomposition of HAN, spiked with activated carbons were characterized by electron ionization mass spectrometry analysis. Primary products of HAN decomposition: m/z = 33 (NH2OH) and m/z = 63 (HNO3), which are further responsible for the formation of secondary products such as N2O, NO, HNO2, NO2, O2 etc. Significant reduction of NOx emissions during thermal decomposition of HAN (95 wt.%) ‒ water solution was observed (ca. 30%) in presence of activated carbons.
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180
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Wang L, Li B, Li L, Xu F, Xu Z, Wei D, Feng Y, Wang Y, Jia D, Zhou Y. Ultrahigh-yield synthesis of N-doped carbon nanodots that down-regulate ROS in zebrafish. J Mater Chem B 2017; 5:7848-7860. [PMID: 32264386 DOI: 10.1039/c7tb01114h] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Oxidative damage induced by accumulation of excessive reactive oxygen species (ROS) could result in increased chronic inflammation and thus ageing and age-related diseases. Carbonaceous nanodrugs hold great promise for ameliorating age-related diseases, and it is necessary to develop ultrahigh-yield synthesis of such nanodrugs. To improve the synthetic yield (less than 50%) of carbon nanodots (CNDs), the general choice is to screen precursors. However, no reliable concept for improving the yield has been explored over the past few decades. We are the first to propose the concept of using carbon-carbon double bonds to boost the synthetic yield and demonstrate record breaking ultrahigh-yield (85.9%) synthesis of N-doped CNDs. When the C[double bond, length as m-dash]C content increased from 14 to 56 mmol, the synthetic yield exhibited a 3.3-fold increase. Nitrogen elements are doped as pyridinic-like N and NH2, where conjugated π-systems as electron donors and pyridinic-like structures would benefit the potential down-regulated effect for ROS. N-doped CNDs exhibit an outstanding protective effect against oxidative stress via inhibiting exogenous and endogenous ROS generation, where the ROS in zebrafish are significantly reduced by 68%. Hence the concept of carbon-carbon double bond-boosted ultrahigh-yield synthesis of N-doped CNDs provides a promising strategy to be employed for carbonaceous nanodrugs aiming at preventing and curing ageing and age-related diseases.
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Affiliation(s)
- Lei Wang
- Institute for Advanced Ceramics, State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150001, P. R. China.
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181
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Steinberg RS, Cruz M, Mahfouz NGA, Qiu Y, Hurt RH. Breathable Vapor Toxicant Barriers Based on Multilayer Graphene Oxide. ACS NANO 2017; 11:5670-5679. [PMID: 28582974 PMCID: PMC5757311 DOI: 10.1021/acsnano.7b01106] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
There is tremendous interest in graphene-based membranes as protective molecular barriers or molecular sieves for separation technologies. Graphene oxide (GO) films in the dry state are known to be effective barriers for molecular transport and to expand in the presence of moisture to create enlarged intersheet gallery spaces that allow rapid water permeation. Here we explore an application for GO membranes as water-breathable barrier layers for personal protective equipment, which are designed to allow outward perspiration while protecting the wearer from chemical toxicants or biochemical agents in the local environment. A device was developed to measure permeation rates of small-molecular toxicants in the presence of counter-current water flow simulating active perspiration. The technique was applied to trichloroethylene (TCE) and benzene, which are important environmental toxicants, and ethanol as a limiting case to model very small, highly water-soluble organic molecules. Submicron GO membranes are shown to be effective TCE barriers, both in the presence and absence of simulated perspiration flux, and to outperform current barrier technologies. A molecular transport model is developed, which suggests the limited toxicant back-permeation observed occurs not by diffusion against the convective perspiration flow in hydrophobic channels, but rather through oxidized domains where hydrogen-bonding produces a near-stagnant water phase. Benzene and ethanol permeation fluxes are higher than those for TCE, likely reflecting the effects of higher water solubility and smaller minimum molecular dimension. Overall, GO films have high water breathability relative to competing technologies and are known to exclude most classes of target toxicants, including particles, bacteria, viruses, and macromolecules. The present results show good barrier performance for some very small-molecule species, but not others, with permeation being favored by high water solubility and small minimum molecular dimension.
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182
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Singh B, Singh B. Influence of graphene-oxide nanosheets impregnation on properties of sterculia gum-polyacrylamide hydrogel formed by radiation induced polymerization. Int J Biol Macromol 2017; 99:699-712. [DOI: 10.1016/j.ijbiomac.2017.03.037] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 02/01/2017] [Accepted: 03/06/2017] [Indexed: 11/24/2022]
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183
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Hu X, Kang W, Mu L. Aqueously Released Graphene Oxide Embedded in Epoxy Resin Exhibits Different Characteristics and Phytotoxicity of Chlorella vulgaris from the Pristine Form. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:5425-5433. [PMID: 28437605 DOI: 10.1021/acs.est.7b00361] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The environmental release of nanoparticles is attracting increasing attention. Graphene oxide (GO) embedded in epoxy resin (ER) is a popular composite that has been used in various fields, but the environmental release of GO-ER composites and the effects on organisms in the environment remain unknown. The present work found that GO-ER composites in water for 2-7 days resulted in the release of 0.3-2.1% GO-ER at nanoscale (2-3 nm thickness and approximately 70-130 nm lateral length). Interestingly, pristine GO quenched 30-45% hydroxyl and 12% nitroxide free radicals, whereas this capacity was not observed for the released particles from GO-ER. At environmentally relevant concentrations (μg/L), released GO-ER particles, but not GO or ER matrix, promoted algal reproduction by 34% and chlorophyll biosynthesis by 65-127% at 96 h. Released GO-ER entered algal cells and induced a slight increase in reactive oxygen species but did not elicit notable cell structure damage. The upregulated amino acids and phenylalanine metabolism, and the downregulated fatty acid biosynthesis contributed to algal growth promoted by released GO-ER. Previous studies of pristine nanoparticles were unable to reflect the environmental effects of released nanoparticles into the environment, and our research on the exposure-toxicological continuum adds important contributions to this field.
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Affiliation(s)
- Xiangang Hu
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University , Tianjin 300071, China
| | - Weilu Kang
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University , Tianjin 300071, China
| | - Li Mu
- Institute of Agro-environmental Protection, Ministry of Agriculture, Tianjin 300191, China
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184
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Xie J, Yong Y, Dong X, Du J, Guo Z, Gong L, Zhu S, Tian G, Yu S, Gu Z, Zhao Y. Therapeutic Nanoparticles Based on Curcumin and Bamboo Charcoal Nanoparticles for Chemo-Photothermal Synergistic Treatment of Cancer and Radioprotection of Normal Cells. ACS APPLIED MATERIALS & INTERFACES 2017; 9:14281-14291. [PMID: 28381089 DOI: 10.1021/acsami.7b02622] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Low water solubility, extensive metabolism, and drug resistance are the existing unavoidable disadvantages of the insoluble drug curcumin in biomedical applications. Herein, we employed d-α-tocopherol polyethylene glycol 1000 succinate (TPGS)-functionalized near-infrared (NIR)-triggered photothermal mesoporous nanocarriers with bamboo charcoal nanoparticles (TPGS-BCNPs) to load and deliver curcumin for improving its bioavailability. This system could considerably increase the accumulation of curcumin in cancer cells for enhanced curcumin bioavailability via simultaneously promoting the cellular internalization of the as-synthesized composite (TPGS-BCNPs@curcumin) by the size effect of NPs and considerably triggering controlled curcumin release from TPGS-BCNPs@curcumin by NIR stimulation and reducing efflux of curcumin by the P-glycoprotein (P-gp) inhibition of TPGS, so as to enhance the therapeutic effect of curcumin and realize a better chemo-photothermal synergetic therapy in vitro and in vivo. Besides cancer therapy, studies indicated that curcumin and some carbon materials could be used as radical scavengers that play an important role in the radioprotection of normal cells. Hence, we also investigated the free-radical-scavenging ability of the TPGS-BCNPs@curcumin composite in vitro to preliminarily evaluate its radioprotection ability for healthy tissues. Therefore, our work provides a multifunctional delivery system for curcumin bioavailability enhancement, chemo-photothermal synergetic therapy of cancer, and radioprotection of healthy tissues.
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Affiliation(s)
- Jiani Xie
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics and National Center for Nanoscience and Technology of China, Chinese Academy of Sciences , Beijing 100049, China
- University of Chinese Academy of Science , Beijing 100049, China
| | - Yuan Yong
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics and National Center for Nanoscience and Technology of China, Chinese Academy of Sciences , Beijing 100049, China
- University of Chinese Academy of Science , Beijing 100049, China
| | - Xinghua Dong
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics and National Center for Nanoscience and Technology of China, Chinese Academy of Sciences , Beijing 100049, China
- University of Chinese Academy of Science , Beijing 100049, China
| | - Jiangfeng Du
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics and National Center for Nanoscience and Technology of China, Chinese Academy of Sciences , Beijing 100049, China
- School of Radiation Medicine and Protection & School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University , Suzhou 215123, China
| | - Zhao Guo
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics and National Center for Nanoscience and Technology of China, Chinese Academy of Sciences , Beijing 100049, China
- University of Chinese Academy of Science , Beijing 100049, China
| | - Linji Gong
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics and National Center for Nanoscience and Technology of China, Chinese Academy of Sciences , Beijing 100049, China
- University of Chinese Academy of Science , Beijing 100049, China
| | - Shuang Zhu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics and National Center for Nanoscience and Technology of China, Chinese Academy of Sciences , Beijing 100049, China
| | - Gan Tian
- Institute of Pathology and Southwest Cancer Center, The First Affiliated Hospital, Third Military Medical University , Gaotanyan 30, Chongqing 400038, China
| | - Shicang Yu
- Institute of Pathology and Southwest Cancer Center, The First Affiliated Hospital, Third Military Medical University , Gaotanyan 30, Chongqing 400038, China
| | - Zhanjun Gu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics and National Center for Nanoscience and Technology of China, Chinese Academy of Sciences , Beijing 100049, China
- University of Chinese Academy of Science , Beijing 100049, China
| | - Yuliang Zhao
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics and National Center for Nanoscience and Technology of China, Chinese Academy of Sciences , Beijing 100049, China
- University of Chinese Academy of Science , Beijing 100049, China
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185
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Sun A, Mu L, Hu X. Graphene Oxide Quantum Dots as Novel Nanozymes for Alcohol Intoxication. ACS APPLIED MATERIALS & INTERFACES 2017; 9:12241-12252. [PMID: 28322544 DOI: 10.1021/acsami.7b00306] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Alcohol overconsumption as a worldwide issue results in alcoholic liver disease (ALD), such as steatosis, alcoholic hepatitis, and cirrhosis. The treatment of ALD has been widely investigated but remains challenging. In this work, the protective effects of graphene oxide quantum dots (GOQDs) as novel nanozymes against alcohol overconsumption are discovered, and the specific mechanisms underlying these effects are elucidated via omics analysis. GOQDs dramatically alleviate the reduction of cell viability induced by ethanol and can act as nanozymes to accelerate ethanol metabolism and avoid the accumulation of toxic intermediates in cells. Mitochondrial damage and the excessive generation of free radicals were mitigated by GOQDs. The mechanisms underlying the cellular protective effects were also related to alterations in metabolic and protein signals, especially those involved in lipid metabolism. The moderately increased autophagy induced by GOQDs explained the removal of accumulated lipids and the subsequent elimination of excessive GOQDs. These findings suggest that GOQDs have an antagonistic capacity against the adverse effects caused by ethanol and provide new insights into the direct applications of GOQDs. In addition to traditional antioxidation, this work also establishes metabolomics and proteomics techniques as effective tools to discover the multiple functions of nanozymes.
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Affiliation(s)
- Anqi Sun
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University , Tianjin 300071, China
| | - Li Mu
- Institute of Agro-environmental Protection, Ministry of Agriculture , Tianjin 300191, China
| | - Xiangang Hu
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University , Tianjin 300071, China
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186
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Kim K, Bae J, Lim MY, Heo P, Choi SW, Kwon HH, Lee JC. Enhanced physical stability and chemical durability of sulfonated poly(arylene ether sulfone) composite membranes having antioxidant grafted graphene oxide for polymer electrolyte membrane fuel cell applications. J Memb Sci 2017. [DOI: 10.1016/j.memsci.2016.10.038] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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187
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Zhou Q, Hu X. Systemic Stress and Recovery Patterns of Rice Roots in Response to Graphene Oxide Nanosheets. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:2022-2030. [PMID: 28107001 DOI: 10.1021/acs.est.6b05591] [Citation(s) in RCA: 116] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The interactions between nanomaterials and plants have attracted increasing attention. However, the systemic stress and recovery patterns of plants in response to nanomaterials and the connections between the molecular responses and the phenotypes remain unclear. Herein, rice was exposed to graphene oxide (GO) nanosheets at 0.01-1.0 mg/L for 7 days under hydroponic exposure, followed by a 7-day post exposure (GO-free). The significant upregulation (p < 0.05) of phenylalanine metabolism, secondary metabolism, and heme peroxidase reflected the stress and recovery patterns of rice roots exposed to GO. GO triggered 27% and more than 50% decreases in hydraulic conductivity and aquaporin gene expression (PIP1-3 and PIP2-2), respectively. The uptake of GO was mediated by aquaporin inhibition. Nanomaterial biotransformation reflected the potential for rice roots to adapt to GO stress. Oxidative stress, especially the downregulation of class III peroxidase mRNAs, were suppressed by GO. Lateral root inhibition, primary root growth, and cell wall synthesis, as forms of resistance to GO stress, were related to the significant (p < 0.05) downregulation of salicylic acid and lignin biosynthesis, as well as the upregulation of jasmonic acid and laccases. The present study helps elucidate the molecular and phenotypic responses of plants to nanomaterials, which are closely linked to their environmental risk assessment.
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Affiliation(s)
- Qixing Zhou
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University , Tianjin 300071, China
| | - Xiangang Hu
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University , Tianjin 300071, China
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188
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Guo Z, Xie C, Zhang P, Zhang J, Wang G, He X, Ma Y, Zhao B, Zhang Z. Toxicity and transformation of graphene oxide and reduced graphene oxide in bacteria biofilm. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 580:1300-1308. [PMID: 28003049 DOI: 10.1016/j.scitotenv.2016.12.093] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Revised: 12/12/2016] [Accepted: 12/13/2016] [Indexed: 05/22/2023]
Abstract
Impact of graphene based material (GNMs) on bacteria biofilm has not been well understood yet. In this study, we compared the impact of graphene oxide (GO) and reduced graphene oxide (rGO) on biofilm formation and development in Luria-Bertani (LB) medium using Escherichia coli and Staphylococcus aureus as models. GO significantly enhanced the cell growth, biofilm formation, and biofilm development even up to a concentration of 500mg/L. In contrast, rGO (≥50mg/L) strongly inhibited cell growth and biofilm formation. However, the inhibitory effects of rGO (50mg/L and 100mg/L) were attenuated in the mature phase (>24h) and eliminated at 48h. GO at 250mg/L decreased the reactive oxygen species (ROS) levels in biofilm and extracellular region at mature phase. ROS levels were significantly increased by rGO at early phase, while they returned to the same levels as control at mature phase. These results suggest that oxidative stress contributed to the inhibitory effect of rGO on bacterial biofilm. We further found that supplement of extracellular polymeric substances (EPS) in the growth medium attenuated the inhibitory effect of rGO on the growth of developed biofilm. XPS results showed that rGO were oxidized to GO which can enhance the bacterial growth. We deduced that the elimination of the toxicity of rGO at mature phase was contributed by EPS protection and the oxidation of rGO. This study provides new insights into the interaction of GNMs with bacteria biofilm.
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Affiliation(s)
- Zhiling Guo
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Changjian Xie
- Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Peng Zhang
- Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.
| | - Junzhe Zhang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Guohua Wang
- Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Xiao He
- Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Yuhui Ma
- Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Bin Zhao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
| | - Zhiyong Zhang
- Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.
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189
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Akhtar MJ, Ahamed M, Alhadlaq HA, Alshamsan A. Mechanism of ROS scavenging and antioxidant signalling by redox metallic and fullerene nanomaterials: Potential implications in ROS associated degenerative disorders. Biochim Biophys Acta Gen Subj 2017; 1861:802-813. [PMID: 28115205 DOI: 10.1016/j.bbagen.2017.01.018] [Citation(s) in RCA: 97] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2016] [Revised: 12/21/2016] [Accepted: 01/09/2017] [Indexed: 12/29/2022]
Abstract
BACKGROUND The balance between oxidation and anti-oxidation is believed to be critical in maintaining healthy biological systems. However, our endogenous antioxidant defense systems are incomplete without exogenous antioxidants and, therefore, there is a continuous demand for exogenous antioxidants to prevent stress and ageing associated disorders. Nanotechnology has yielded enormous variety of nanomaterials (NMs) of which metallic and carbonic (mainly fullerenes) NMs, with redox property, have been found to be strong scavengers of ROS and antioxidants in preclinical in vitro and in vivo models. SCOPE OF REVIEW Redox activity of metal based NMs and membrane translocation time of fullerene NMs seem to be the major determinants in ROS scavenging potential exhibited by these NMs. A comprehensive knowledge about the effects of ROS scavenging NMs in cellular antioxidant signalling is largely lacking. This review compiles the mechanisms of ROS scavenging as well as antioxidant signalling of the aforementioned metallic and fullerene NMs. MAJOR CONCLUSIONS Direct interaction between NMs and proteins does greatly affect the corona/adsorption formation dynamics but such interaction does not provide the explanation behind diverse biological outcomes induced by NMs. Indirect interaction, however, that could occur via NMs uptake and dissolution, NMs ROS induction and ROS scavenging property, and NMs membrane translocation time seem to work as a central mode of interaction. GENERAL SIGNIFICANCE The usage of potential antioxidant NMs in biological systems would greatly impact the field of nanomedicine. ROS scavenging NMs hold great promise in the future treatment of ROS related degenerative disorders.
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Affiliation(s)
- Mohd Javed Akhtar
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh, Saudi Arabia.
| | - Maqusood Ahamed
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh, Saudi Arabia
| | - Hisham A Alhadlaq
- Department of Physics and Astronomy, College of Sciences, King Saud University, Riyadh, Saudi Arabia; King Abdullah Institute for Nanotechnology, King Saud University, Riyadh, Saudi Arabia
| | - Aws Alshamsan
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh, Saudi Arabia; Nanomedicine Research Unit, Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
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190
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Cho H, Jones MR, Nguyen SC, Hauwiller MR, Zettl A, Alivisatos AP. The Use of Graphene and Its Derivatives for Liquid-Phase Transmission Electron Microscopy of Radiation-Sensitive Specimens. NANO LETTERS 2017; 17:414-420. [PMID: 28026186 DOI: 10.1021/acs.nanolett.6b04383] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
One of the key challenges facing liquid-phase transmission electron microscopy (TEM) of biological specimens has been the damaging effects of electron beam irradiation. The strongly ionizing electron beam is known to induce radiolysis of surrounding water molecules, leading to the formation of reactive radical species. In this study, we employ DNA-assembled Au nanoparticle superlattices (DNA-AuNP superlattices) as a model system to demonstrate that graphene and its derivatives can be used to mitigate electron beam-induced damage. We can image DNA-AuNP superlattices in their native saline environment when the liquid cell window material is graphene, but not when it is silicon nitride. In the latter case, initial dissociation of assembled AuNPs was followed by their random aggregation and etching. Using graphene-coated silicon nitride windows, we were able to replicate the observation of stable DNA-AuNP superlattices achieved with graphene liquid cells. We then carried out a correlative Raman spectroscopy and TEM study to compare the effect of electron beam irradiation on graphene with and without the presence of water and found that graphene reacts with the products of water radiolysis. We attribute the protective effect of graphene to its ability to efficiently scavenge reactive radical species, especially the hydroxyl radicals which are known to cause DNA strand breaks. We confirmed this by showing that stable DNA-AuNP assemblies can be imaged in silicon nitride liquid cells when graphene oxide and graphene quantum dots, which have also recently been reported as efficient radical scavengers, are added directly to the solution. We anticipate that our study will open up more opportunities for studying biological specimens using liquid-phase TEM with the use of graphene and its derivatives as biocompatible radical scavengers to alleviate the effects of radiation damage.
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Affiliation(s)
- Hoduk Cho
- Department of Chemistry, University of California , Berkeley, California 94720, United States
- Materials Sciences Division, Lawrence Berkeley National Laboratory , Berkeley, California 94720, United States
| | - Matthew R Jones
- Department of Chemistry, University of California , Berkeley, California 94720, United States
| | - Son C Nguyen
- Department of Chemistry, University of California , Berkeley, California 94720, United States
- The Hamburg Centre for Ultrafast Imaging, University of Hamburg , Luruper Chaussee 149, 22761 Hamburg, Germany
| | - Matthew R Hauwiller
- Department of Chemistry, University of California , Berkeley, California 94720, United States
- Materials Sciences Division, Lawrence Berkeley National Laboratory , Berkeley, California 94720, United States
| | - Alex Zettl
- Materials Sciences Division, Lawrence Berkeley National Laboratory , Berkeley, California 94720, United States
- Department of Physics, University of California , Berkeley, California 94720, United States
- Kavli Energy NanoScience Institute , Berkeley, California 94720, United States
| | - A Paul Alivisatos
- Department of Chemistry, University of California , Berkeley, California 94720, United States
- Materials Sciences Division, Lawrence Berkeley National Laboratory , Berkeley, California 94720, United States
- Kavli Energy NanoScience Institute , Berkeley, California 94720, United States
- Department of Materials Science and Engineering, University of California , Berkeley, California 94720, United States
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191
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Chandrasekaran N, Muthusamy S. Binderless, Free-Standing Porous Interconnects of Ni-Fe Alloy Decorated Reduced Graphene Oxide for Oxygen Evolution Reaction. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:2-10. [PMID: 28004940 DOI: 10.1021/acs.langmuir.6b02413] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We report the synthesis of lightweight, free-standing Ni-Fe@rGO porous interconnects by carbothermal reduction of Ni-FeOx using graphene oxide (GO) as the reducing agent. Here, we take advantage of the oxygen functionalities present in GO to aid in anchoring the metal ions followed by epoxide-assisted Ni-FeOx@GO network formation. When pyrolyzed under inert conditions, Ni-FeOx@GO networks were converted to Ni-Fe@rGO by simple carbothermal metal reduction at 800 °C. The Ni-Fe@rGO monoliths were found to be macroporous, electrically conducting, and electrocatalytic toward oxygen evolution reaction (OER). The monoliths exhibited excellent OER activity yielding a current density of 10 mA cm-2 at an overpotential of 350 mV versus RHE, Tafel slope of 38 mV decade-1, and a TOF value of 50 s-1 on par with the established Ni-Fe based electrocatalysts.
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192
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Quantum Chemical Investigation on the Antioxidant Activity of Neutral and Anionic Forms of Juglone: Metal Chelation and Its Effect on Radical Scavenging Activity. J CHEM-NY 2017. [DOI: 10.1155/2017/3281684] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
The chelation ability of divalent Mg, Ca, Fe, Co, Ni, Cu, Zn, and monovalent Cu ions by neutral and anionic forms of juglone has been investigated at DFT/B3LYP/6-31+G(d,p) level of theory in gas and aqueous phases. It is noteworthy that only the 1 : 1 stoichiometry was considered herein. The effects of these metals on the radical scavenging activity of neutral juglone were evaluated via the usual descriptors of hydrogen atom transfer. According to our results, metal chelation by the two forms of juglone was spontaneous and exothermic in both media. Based on the binding energies, Cu(II) ion showed the highest affinity for the ligands. QTAIM analyses identified the metal-ligand bonds as intermediate type interactions in all the chelates, except those of Ca and Mg. It was also found that the chelates were better radical scavengers than the ligands. In the gas phase, the scavenging activity of the compounds was found to be governed by direct hydrogen atom transfer, the Co(II) chelate being the most reactive. In the aqueous phase also, the sequential proton loss electron transfer was preferred by all the molecules, while the Cu(II) chelates were the most reactive.
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193
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Chen PY, Liu M, Valentin TM, Wang Z, Spitz Steinberg R, Sodhi J, Wong IY, Hurt RH. Hierarchical Metal Oxide Topographies Replicated from Highly Textured Graphene Oxide by Intercalation Templating. ACS NANO 2016; 10:10869-10879. [PMID: 28024363 DOI: 10.1021/acsnano.6b05179] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Confined assembly in the intersheet gallery spaces of two-dimensional (2D) materials is an emerging templating route for creation of ultrathin material architectures. Here, we demonstrate a general synthetic route for transcribing complex wrinkled and crumpled topographies in graphene oxide (GO) films into textured metal oxides. Intercalation of hydrated metal ions into textured GO multilayer films followed by dehydration, thermal decomposition, and air oxidation produces Zn, Al, Mn, and Cu oxide films with high-fidelity replication of the original GO textures, including "multi-generational", multiscale textures that have been recently achieved through extreme graphene compression. The textured metal oxides are shown to consist of nanosheet-like aggregates of interconnected particles, whose mobility, attachment, and sintering are guided by the 2D template. This intercalation templating approach has broad applicability for the creation of complex, textured films and provides a bridging technology that can transcribe the wide variety of textures already realized in graphene into insulating and semiconducting materials. These textured metal oxide films exhibit enhanced electrochemical and photocatalytic performance over planar films and show potential as high-activity electrodes for energy storage, catalysis, and biosensing.
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Affiliation(s)
- Po-Yen Chen
- School of Engineering, ‡Institute for Molecular and Nanoscale Innovation, and §Department of Chemistry, Brown University , Providence, Rhode Island 02912, United States
| | - Muchun Liu
- School of Engineering, ‡Institute for Molecular and Nanoscale Innovation, and §Department of Chemistry, Brown University , Providence, Rhode Island 02912, United States
| | - Thomas M Valentin
- School of Engineering, ‡Institute for Molecular and Nanoscale Innovation, and §Department of Chemistry, Brown University , Providence, Rhode Island 02912, United States
| | - Zhongying Wang
- School of Engineering, ‡Institute for Molecular and Nanoscale Innovation, and §Department of Chemistry, Brown University , Providence, Rhode Island 02912, United States
| | - Ruben Spitz Steinberg
- School of Engineering, ‡Institute for Molecular and Nanoscale Innovation, and §Department of Chemistry, Brown University , Providence, Rhode Island 02912, United States
| | - Jaskiranjeet Sodhi
- School of Engineering, ‡Institute for Molecular and Nanoscale Innovation, and §Department of Chemistry, Brown University , Providence, Rhode Island 02912, United States
| | - Ian Y Wong
- School of Engineering, ‡Institute for Molecular and Nanoscale Innovation, and §Department of Chemistry, Brown University , Providence, Rhode Island 02912, United States
| | - Robert H Hurt
- School of Engineering, ‡Institute for Molecular and Nanoscale Innovation, and §Department of Chemistry, Brown University , Providence, Rhode Island 02912, United States
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194
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Qiu Y. Two-Dimensional Materials Beyond Graphene: Emerging Opportunities for Biomedicine. ACTA ACUST UNITED AC 2016. [DOI: 10.1142/s1793984416420083] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
With the rise of graphene, there is growing attention on two-dimensional (2D) materials in the physical science community during the last decade. Most studies to date focus on the rich set of their superior electrical, optical, catalytic and electrochemical properties and highlight the encouraging opportunities for developing next generation electronics, optoelectronics, catalysis, and energy storage technologies. On the contrary, the biomedicine community has barely recognized the potential of these materials other than graphene. There are very limited published studies on these materials’ biological effects and biomedical applications. Here, we present a brief overview of 2D materials and discuss their potential for biomedical applications in hope of raising biomedical researchers’ awareness of the great opportunities associated with these materials. We first discuss the emergence of 2D materials and review two most important prerequisites for 2D materials’ biomedical applications, synthesis and biocompatibility. We then categorize the existing studies on 2D materials’ biomedical applications into biosensing, drug/gene delivery, antimicrobial, bioimaging and multimode therapeutic applications. We would put special emphasis on the great flexibility of various rational combinations of 2D material superior properties for the design and construction of assorted forms of reagents or devices with highly effective simultaneous diagnostic and therapeutic functions (or theranostics functions). At last, the newly emerging 2D black phosphorous with very rare and interesting properties is introduced as the next promising and important 2D materials to study in the upcoming years.
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Affiliation(s)
- Yang Qiu
- School of Engineering, Brown University, Providence, RI 02906, United States
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195
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Szmidt M, Sawosz E, Urbańska K, Jaworski S, Kutwin M, Hotowy A, Wierzbicki M, Grodzik M, Lipińska L, Chwalibog A. Toxicity of different forms of graphene in a chicken embryo model. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:19940-19948. [PMID: 27436378 DOI: 10.1007/s11356-016-7178-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2015] [Accepted: 07/04/2016] [Indexed: 06/06/2023]
Abstract
In the present work, the toxicity of three forms of graphene: pristine graphene (pG), graphene oxide (GO), and reduced graphene oxide (rGO) was investigated using a chicken embryo model. Fertilized chicken eggs were divided into the control group and groups administered with pG, GO, and rGO, in concentrations of 50, 500, and 5000 μg/ml. The experimental solutions were injected in ovo into the eggs, and at day 18 of incubation, the embryo survival, body and organ weights, the ultrastructure of liver samples, and the concentration of 8-hydroxy-2'-deoxyguanosine (8-OHdG) in the livers were measured. Survival of embryos decreased significantly after treatment with all types of graphene, but not in a dose-dependent manner. The body weights were only slightly affected by the highest doses of graphene, while the organ weights were not different among treatment groups. In all experimental groups, atypical hepatocyte ultrastructure and mitochondrial damage were observed. The concentration of the marker of DNA damage 8-OHdG in the liver significantly decreased after pG and rGO treatments. Further in vivo studies with different animal models are necessary to clarify the level of toxicity of different types of graphene and to estimate the concentrations appropriate to evaluate their biomedical applications and environmental hazard.
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Affiliation(s)
- Maciej Szmidt
- Department of Morphological Sciences, Warsaw University of Life Sciences, 02-787, Warsaw, Poland
| | - Ewa Sawosz
- Department of Animal Nutrition and Biotechnology, Warsaw University of Life Sciences, 02-787, Warsaw, Poland
| | - Kaja Urbańska
- Department of Morphological Sciences, Warsaw University of Life Sciences, 02-787, Warsaw, Poland
| | - Sławomir Jaworski
- Department of Animal Nutrition and Biotechnology, Warsaw University of Life Sciences, 02-787, Warsaw, Poland
| | - Marta Kutwin
- Department of Animal Nutrition and Biotechnology, Warsaw University of Life Sciences, 02-787, Warsaw, Poland
| | - Anna Hotowy
- Department of Animal Nutrition and Biotechnology, Warsaw University of Life Sciences, 02-787, Warsaw, Poland
| | - Mateusz Wierzbicki
- Department of Animal Nutrition and Biotechnology, Warsaw University of Life Sciences, 02-787, Warsaw, Poland
| | - Marta Grodzik
- Department of Animal Nutrition and Biotechnology, Warsaw University of Life Sciences, 02-787, Warsaw, Poland
| | - Ludwika Lipińska
- Institute of Electronic Materials Technology, 02-787, Warsaw, Poland
| | - André Chwalibog
- Department of Veterinary Clinical and Animal Sciences, University of Copenhagen, 1870, Frederiksberg, Denmark.
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196
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Majeed W, Bourdo S, Petibone DM, Saini V, Vang KB, Nima ZA, Alghazali KM, Darrigues E, Ghosh A, Watanabe F, Casciano D, Ali SF, Biris AS. The role of surface chemistry in the cytotoxicity profile of graphene. J Appl Toxicol 2016; 37:462-470. [PMID: 27593524 DOI: 10.1002/jat.3379] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Revised: 07/18/2016] [Accepted: 07/28/2016] [Indexed: 12/30/2022]
Abstract
Graphene and its derivative, because of their unique physical, electrical and chemical properties, are an important class of nanomaterials being proposed as foundational materials in nanomedicine as well as for a variety of industrial applications. A major limitation for graphene, when used in biomedical applications, is its poor solubility due to its rather hydrophobic nature. Therefore, chemical functionalities are commonly introduced to alter both its surface chemistry and biochemical activity. Here, we show that surface chemistry plays a major role in the toxicological profile of the graphene structures. To demonstrate this, we chemically increased the oxidation level of the pristine graphene and compared the corresponding toxicological effects along with those for the graphene oxide. X-ray photoelectron spectroscopy revealed that pristine graphene had the lowest amount of surface oxygen, while graphene oxide had the highest at 2.5% and 31%, respectively. Low and high oxygen functionalized graphene samples were found to have 6.6% and 24% surface oxygen, respectively. Our results showed a dose-dependent trend in the cytotoxicity profile, where pristine graphene was the most cytotoxic, with decreasing toxicity observed with increasing oxygen content. Increased surface oxygen also played a role in nanomaterial dispersion in water or cell culture medium over longer periods. It is likely that higher dispersity might result in graphene entering into cells as individual flakes ~1 nm thick rather than as more cytotoxic aggregates. In conclusion, changes in graphene's surface chemistry resulted in altered solubility and toxicity, suggesting that a generalized toxicity profile would be rather misleading. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Waqar Majeed
- Center of Integrative Nanotechnology Sciences, University of Arkansas at Little Rock, AR, 72204, USA.,Division of Neurotoxicology, National Center for Toxicological Research, Jefferson, AR, 72079, USA
| | - Shawn Bourdo
- Center of Integrative Nanotechnology Sciences, University of Arkansas at Little Rock, AR, 72204, USA
| | - Dayton M Petibone
- Division of Genetic and Molecular Toxicology, National Center for Toxicological Research, Jefferson, AR, 72079, USA
| | - Viney Saini
- Center of Integrative Nanotechnology Sciences, University of Arkansas at Little Rock, AR, 72204, USA
| | - Kieng Bao Vang
- Center of Integrative Nanotechnology Sciences, University of Arkansas at Little Rock, AR, 72204, USA
| | - Zeid A Nima
- Center of Integrative Nanotechnology Sciences, University of Arkansas at Little Rock, AR, 72204, USA
| | - Karrer M Alghazali
- Center of Integrative Nanotechnology Sciences, University of Arkansas at Little Rock, AR, 72204, USA
| | - Emilie Darrigues
- Center of Integrative Nanotechnology Sciences, University of Arkansas at Little Rock, AR, 72204, USA
| | - Anindya Ghosh
- Center of Integrative Nanotechnology Sciences, University of Arkansas at Little Rock, AR, 72204, USA.,Department of Chemistry, University of Arkansas at Little Rock, AR, 72204, USA
| | - Fumiya Watanabe
- Center of Integrative Nanotechnology Sciences, University of Arkansas at Little Rock, AR, 72204, USA
| | - Daniel Casciano
- Center of Integrative Nanotechnology Sciences, University of Arkansas at Little Rock, AR, 72204, USA
| | - Syed F Ali
- Division of Neurotoxicology, National Center for Toxicological Research, Jefferson, AR, 72079, USA
| | - Alexandru S Biris
- Center of Integrative Nanotechnology Sciences, University of Arkansas at Little Rock, AR, 72204, USA
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197
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Mu L, Gao Y, Hu X. Characterization of Biological Secretions Binding to Graphene Oxide in Water and the Specific Toxicological Mechanisms. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:8530-8537. [PMID: 27419256 DOI: 10.1021/acs.est.6b02494] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
With the widening application of graphene oxide nanosheets (GONS), their safety has attracted much attention. Secretions from aquatic organisms are ubiquitous in natural water, but the effects of secretions on the characteristics and toxicity of GONS remain largely unknown. To help fill this knowledge gap, we characterized the GONS with biological secretions (GOBS) and the associated changes in apparent toxicity. Small organic molecules, proteins, nucleotides and mucopolysaccharides from secretions in zebrafish culture water bound to GONS. Compared with GONS, GOBS showed special nanoplate topography with thicknesses of approximately 10 nm and lateral lengths ranging from 19.5 to 282 nm. GOBS with smaller lateral sizes exhibited more negative surface charges and lower aggregation state than GONS. Furthermore, GOBS triggered higher toxicity than GONS, such as death, malformation, upregulation of β-galactosidase and loss in mitochondrial membrane potential of zebrafish embryos. The well-dispersive GOBS covered embryos, inhibiting oxygen and ion exchange; these phenomena were the specific mechanisms of the adverse effects. In future work, the acquired natural coatings on nanomaterials should be paid much attention in nanotoxicology, especially for the relationships among topography, aggregation state, and toxicity.
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Affiliation(s)
- Li Mu
- Tianjin Key Laboratory of Agro-environment and Safe-product, Institute of Agro-environmental Protection, Ministry of Agriculture, Tianjin 300191, China
| | - Yue Gao
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University , Tianjin 300071, China
| | - Xiangang Hu
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University , Tianjin 300071, China
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198
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Chen PY, Sodhi J, Qiu Y, Valentin TM, Steinberg RS, Wang Z, Hurt RH, Wong IY. Multiscale Graphene Topographies Programmed by Sequential Mechanical Deformation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:3564-71. [PMID: 26996525 DOI: 10.1002/adma.201506194] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Revised: 01/26/2016] [Indexed: 05/23/2023]
Abstract
Multigenerational graphene oxide architectures can be programmed by specific sequences of mechanical deformations. Each new deformation results in a progressively larger set of features decorated by smaller preexisting patterns, indicating a structural "memory." It is shown that these multiscale architectures are superhydrophobic and display excellent functionality as electrochemical electrodes.
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Affiliation(s)
- Po-Yen Chen
- School of Engineering, Institute for Molecular and Nanoscale Innovation, Brown University, Providence, RI, 02912, USA
| | - Jaskiranjeet Sodhi
- School of Engineering, Institute for Molecular and Nanoscale Innovation, Brown University, Providence, RI, 02912, USA
| | - Yang Qiu
- School of Engineering, Institute for Molecular and Nanoscale Innovation, Brown University, Providence, RI, 02912, USA
| | - Thomas M Valentin
- School of Engineering, Institute for Molecular and Nanoscale Innovation, Brown University, Providence, RI, 02912, USA
| | - Ruben Spitz Steinberg
- School of Engineering, Institute for Molecular and Nanoscale Innovation, Brown University, Providence, RI, 02912, USA
| | - Zhongying Wang
- School of Engineering, Institute for Molecular and Nanoscale Innovation, Brown University, Providence, RI, 02912, USA
| | - Robert H Hurt
- School of Engineering, Institute for Molecular and Nanoscale Innovation, Brown University, Providence, RI, 02912, USA
| | - Ian Y Wong
- School of Engineering, Institute for Molecular and Nanoscale Innovation, Brown University, Providence, RI, 02912, USA
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199
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Ren C, Hu X, Li X, Zhou Q. Ultra-trace graphene oxide in a water environment triggers Parkinson's disease-like symptoms and metabolic disturbance in zebrafish larvae. Biomaterials 2016; 93:83-94. [PMID: 27085073 DOI: 10.1016/j.biomaterials.2016.03.036] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2016] [Revised: 03/13/2016] [Accepted: 03/25/2016] [Indexed: 02/09/2023]
Abstract
Over the past decade, the safety of nanomaterials has attracted attention due to their rapid development. The relevant health threat of these materials remains largely unknown, particularly at environmentally or biologically relevant ultra-trace concentrations. To address this, we first found that graphene oxide (GO, a carbon nanomaterial that receives extensive attention across various disciplines) at concentrations of 0.01 μg/L-1 μg/L induced Parkinson's disease-like symptoms in zebrafish larvae. In this model, zebrafish showed a loss of more than 90% of dopamine neurons, a 69-522% increase in Lewy bodies (α-synuclein and ubiquitin) and significantly disturbed locomotive activity. Moreover, it was also shown that GO was able to translocate from the water environment to the brain and localize to the nucleus of the diencephalon, thereby inducing structural and morphological damage in the mitochondria. Cell apoptosis and senescence were triggered via oxidative stress, as shown by the upregulation of caspase 8 and β-galactosidase. Using metabolomics, we found that the upregulation of amino acid and some fatty acids (e.g. dodecanoic acid, hexadecanoic acid, octadecenoic acid, nonanoic acid, arachidonic acid, eicosanoic acid, propanoic acid and benzenedicarboxylic acid) metabolism and the downregulation of some other fatty acids (e.g. butanoic acid, phthalic acid and docosenoic acid) are linked to these Parkinson's disease-like symptoms. These findings broaden our understanding of nanomaterial safety at ultra-trace concentrations.
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Affiliation(s)
- Chaoxiu Ren
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China
| | - Xiangang Hu
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China.
| | - Xueyan Li
- Department of Gastroenterology, General Hospital of Shenyang Military Region, Shenyang 110016, Liaoning Province, China
| | - Qixing Zhou
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China.
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200
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Huang G, Ni Z, Chen G, Pang W, Zhao Y. Effects of gamma irradiation and accelerated aging on GO/UHMWPE nanocomposites. INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION 2016. [DOI: 10.1080/1023666x.2016.1168060] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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