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Wu L, Song Y, Xing S, Li Y, Xu H, Yang Q, Li Y. Advances in electrospun nanofibrous membrane sensors for ion detection. RSC Adv 2022; 12:34866-34891. [PMID: 36540220 PMCID: PMC9724217 DOI: 10.1039/d2ra04911b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Accepted: 11/02/2022] [Indexed: 08/05/2024] Open
Abstract
Harmful metal ions and toxic anions produced in industrial processes cause serious damage to the environment and human health. Chemical sensors are used as an efficient and convenient detection method for harmful ions. Electrospun fiber membranes are widely used in the field of solid-state chemical sensors due to high specific surface area, high porosity, and strong adsorption. This paper reviews the solid-state chemical sensors based on electrospinning technology for the detection of harmful heavy metal ions and toxic anions in water over the past decade. These electrospun fiber sensors have different preparation methods, sensing mechanisms, and sensing properties. The preparation method can be completed by physical doping, chemical modification, copolymerization, surface adsorption and self-assembly combined with electrospinning, and the material can also be combined with organic fluorescent molecules, biological matrix materials and precious metal materials. Sensing performance aspects can also be manifested as changes in color and fluorescence. By comparing the literature, we summarize the advantages and disadvantages of electrospinning technology in the field of ion sensing, and discuss the opportunities and challenges of electrospun fiber sensor research. We hope that this review can provide inspiration for the development of electrospun fiber sensors.
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Affiliation(s)
- Liangqiang Wu
- College of Chemistry, Jilin University Changchun 130021 P. R China
| | - Yan Song
- College of Materials Science and Engineering, Jilin Institute of Chemical Technology Jilin 132022 P. R. China
| | - Shuo Xing
- College of Chemistry, Jilin University Changchun 130021 P. R China
| | - Yapeng Li
- College of Chemistry, Jilin University Changchun 130021 P. R China
| | - Hai Xu
- College of Chemistry, Jilin University Changchun 130021 P. R China
| | - Qingbiao Yang
- College of Chemistry, Jilin University Changchun 130021 P. R China
| | - Yaoxian Li
- College of Chemistry, Jilin University Changchun 130021 P. R China
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2
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de Carvalho Lima EN, Octaviano ALM, Piqueira JRC, Diaz RS, Justo JF. Coronavirus and Carbon Nanotubes: Seeking Immunological Relationships to Discover Immunotherapeutic Possibilities. Int J Nanomedicine 2022; 17:751-781. [PMID: 35241912 PMCID: PMC8887185 DOI: 10.2147/ijn.s341890] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 01/31/2022] [Indexed: 12/11/2022] Open
Abstract
Since December 2019, the world has faced an unprecedented pandemic crisis due to a new coronavirus disease, coronavirus disease-2019 (COVID-19), which has instigated intensive studies on prevention and treatment possibilities. Here, we investigate the relationships between the immune activation induced by three coronaviruses associated with recent outbreaks, with special attention to SARS-CoV-2, the causative agent of COVID-19, and the immune activation induced by carbon nanotubes (CNTs) to understand the points of convergence in immune induction and modulation. Evidence suggests that CNTs are among the most promising materials for use as immunotherapeutic agents. Therefore, this investigation explores new possibilities of effective immunotherapies for COVID-19. This study aimed to raise interest and knowledge about the use of CNTs as immunotherapeutic agents in coronavirus treatment. Thus, we summarize the most important immunological aspects of various coronavirus infections and describe key advances and challenges in using CNTs as immunotherapeutic agents against viral infections and the activation of the immune response induced by CNTs, which can shed light on the immunotherapeutic possibilities of CNTs.
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Affiliation(s)
- Elidamar Nunes de Carvalho Lima
- Telecommunication and Control Engineering Department, Polytechnic School of the University of São Paulo, São Paulo, Brazil
- Infectious Diseases Division, Department of Medicine, Federal University of São Paulo, São Paulo, Brazil
- Electronic Systems Engineering Department, Polytechnic School of the University of São Paulo, São Paulo, SP, CEP 05508-010, Brazil
| | - Ana Luiza Moraes Octaviano
- Telecommunication and Control Engineering Department, Polytechnic School of the University of São Paulo, São Paulo, Brazil
| | - José Roberto Castilho Piqueira
- Telecommunication and Control Engineering Department, Polytechnic School of the University of São Paulo, São Paulo, Brazil
| | - Ricardo Sobhie Diaz
- Infectious Diseases Division, Department of Medicine, Federal University of São Paulo, São Paulo, Brazil
| | - João Francisco Justo
- Electronic Systems Engineering Department, Polytechnic School of the University of São Paulo, São Paulo, SP, CEP 05508-010, Brazil
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de Carvalho Lima EN, Diaz RS, Justo JF, Castilho Piqueira JR. Advances and Perspectives in the Use of Carbon Nanotubes in Vaccine Development. Int J Nanomedicine 2021; 16:5411-5435. [PMID: 34408416 PMCID: PMC8367085 DOI: 10.2147/ijn.s314308] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Accepted: 07/21/2021] [Indexed: 12/15/2022] Open
Abstract
Advances in nanobiotechnology have allowed the utilization of nanotechnology through nanovaccines. Nanovaccines are powerful tools for enhancing the immunogenicity of a specific antigen and exhibit advantages over other adjuvant approaches, with features such as expanded stability, prolonged release, decreased immunotoxicity, and immunogenic selectivity. We introduce recent advances in carbon nanotubes (CNTs) to induce either a carrier effect as a nanoplatform or an immunostimulatory effect. Several studies of CNT-based nanovaccines revealed that due to the ability of CNTs to carry immunogenic molecules, they can act as nonclassical vaccines, a quality not possessed by vaccines with traditional formulations. Therefore, adapting and modifying the physicochemical properties of CNTs for use in vaccines may additionally enhance their efficacy in inducing a T cell-based immune response. Accordingly, the purpose of this study is to renew and awaken interest in and knowledge of the safe use of CNTs as adjuvants and carriers in vaccines.
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Affiliation(s)
- Elidamar Nunes de Carvalho Lima
- Telecommunication and Control Engineering Department, Polytechnic School of the University of São Paulo, São Paulo, Brazil
- Infectious Diseases Division, Department of Medicine, Federal University of São Paulo, São Paulo, Brazil
| | - Ricardo Sobhie Diaz
- Infectious Diseases Division, Department of Medicine, Federal University of São Paulo, São Paulo, Brazil
| | - João Francisco Justo
- Electronic Systems Engineering Department, Polytechnic School of the University of São Paulo, São Paulo, Brazil
| | - José Roberto Castilho Piqueira
- Telecommunication and Control Engineering Department, Polytechnic School of the University of São Paulo, São Paulo, Brazil
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4
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Wu L, Qi S, Liu Y, Wang X, Zhu L, Yang Q, Du J, Xu H, Li Y. A novel ratiometric fluorescent probe for differential detection of HSO 3- and ClO - and application in cell imaging and tumor recognition. Anal Bioanal Chem 2021; 413:1137-1148. [PMID: 33404747 DOI: 10.1007/s00216-020-03077-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 11/11/2020] [Accepted: 11/16/2020] [Indexed: 03/17/2023]
Abstract
By connecting 1,8-naphthalimide and indole sulfonate, a ratio fluorescent probe capable of differential detection of hydrogen sulfite and hypochlorite was synthesized for the first time. It was able to achieve the qualitative detection of HSO3- and ClO- with high sensitivity and selectivity, respectively. It provides a multi-purpose probe and is based on different emission channels without mutual interference. The probe has the advantages of larger Stokes shift (ClO-: 115 nm, HSO3-: 88 nm), longer λem (ClO-: 515 nm, HSO3-: 548 nm) and better water solubility (DMF/PBS = 1:99, v/v). In addition, the probe is a ratio fluorescence probe, which can detect fluorescence intensity with two different emission waves. It provides internal self-calibration, reduces interference from the background and increases detection accuracy. In vitro cytotoxicity and imaging experiments show that the probe can effectively perform the detection of exogenous HSO3- and ClO- in cells. It can also achieve the detection of HSO3- and ClO- in the plasma environment. Because the probe can detect endogenous ClO-, it also has a good prospect for biological application in identifying tumor cells. Graphical abstract.
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Affiliation(s)
- Liangqiang Wu
- College of Chemistry, Jilin University, Changchun, 130021, Jilin, China
| | - Shaolong Qi
- College of Chemistry, Jilin University, Changchun, 130021, Jilin, China.,Key Laboratory of Lymphatic Surgery Jilin Province, Engineering Laboratory of Lymphatic Surgery Jilin Province, China-Japan Union Hospital of Jilin University, Changchun, 130031, Jilin, China
| | - Yan Liu
- College of Chemistry, Jilin University, Changchun, 130021, Jilin, China
| | - Xinyu Wang
- Key Laboratory of Lymphatic Surgery Jilin Province, Engineering Laboratory of Lymphatic Surgery Jilin Province, China-Japan Union Hospital of Jilin University, Changchun, 130031, Jilin, China
| | - Lubao Zhu
- College of Chemistry, Jilin University, Changchun, 130021, Jilin, China
| | - Qingbiao Yang
- College of Chemistry, Jilin University, Changchun, 130021, Jilin, China. .,Key Laboratory of Lymphatic Surgery Jilin Province, Engineering Laboratory of Lymphatic Surgery Jilin Province, China-Japan Union Hospital of Jilin University, Changchun, 130031, Jilin, China.
| | - Jianshi Du
- Key Laboratory of Lymphatic Surgery Jilin Province, Engineering Laboratory of Lymphatic Surgery Jilin Province, China-Japan Union Hospital of Jilin University, Changchun, 130031, Jilin, China.
| | - Hai Xu
- College of Chemistry, Jilin University, Changchun, 130021, Jilin, China.
| | - Yaoxian Li
- College of Chemistry, Jilin University, Changchun, 130021, Jilin, China
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5
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He X, White DL, Kapralov AA, Kagan VE, Star A. Photoluminescence Response in Carbon Nanomaterials to Enzymatic Degradation. Anal Chem 2020; 92:12880-12890. [PMID: 32803946 DOI: 10.1021/acs.analchem.0c01380] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Myeloperoxidase (MPO), a key enzyme released by neutrophils during inflammation, has been shown to catalyze the biodegradation of carbon nanomaterials. In this work, we perform photoluminescence studies on the MPO-catalyzed oxidation of graphene oxide (GO) and surfactant-coated pristine (6,5) single-walled carbon nanotubes (SWCNTs). The enzymatic degradation mechanism involves the introduction of defects, which promotes further degradation. Interestingly, the photoluminescence responses of GO and SWCNTs to enzymatic degradation are counterposed. Although the near-infrared (NIR) fluorescence intensity of SWCNTs at 998 nm is either unchanged or decreases depending on the surfactant identity, the blue fluorescence intensity of GO at 440 nm increases with the progression of oxidation by MPO/H2O2/Cl- due to the formation of graphene quantum dots (GQDs). Turn-on GO fluorescence is also observed with neutrophil-like HL-60 cells, indicative of potential applications of GO for imaging MPO activity in live cells. Based on these results, we further construct two ratiometric sensors using SWCNT/GO nanoscrolls by incorporating surfactant-wrapped pristine SWCNTs as the internal either turn-off (with sodium cholate (SC)) or reference (with carboxymethylcellulose (CMC)) sensor. The ratiometric approach enables the sensors to be more stable to external noise by providing response invariant to the absolute intensity emitted from the sensors. Our sensors show linear response to MPO oxidative machinery and hold the promise to be used as self-calibrating carbon nanomaterial-based MPO activity indicators.
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Affiliation(s)
- Xiaoyun He
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - David L White
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Alexandr A Kapralov
- Department of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States
| | - Valerian E Kagan
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States.,Department of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States.,Institute for Regenerative Medicine, Sechenov First Moscow Medical State University, Moscow 119991, Russia
| | - Alexander Star
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States.,Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States
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6
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Eleftheriadou D, Kesidou D, Moura F, Felli E, Song W. Redox-Responsive Nanobiomaterials-Based Therapeutics for Neurodegenerative Diseases. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e1907308. [PMID: 32940007 DOI: 10.1002/smll.201907308] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Revised: 07/20/2020] [Indexed: 05/24/2023]
Abstract
Redox regulation has recently been proposed as a critical intracellular mechanism affecting cell survival, proliferation, and differentiation. Redox homeostasis has also been implicated in a variety of degenerative neurological disorders such as Parkinson's and Alzheimer's disease. In fact, it is hypothesized that markers of oxidative stress precede pathologic lesions in Alzheimer's disease and other neurodegenerative diseases. Several therapeutic approaches have been suggested so far to improve the endogenous defense against oxidative stress and its harmful effects. Among such approaches, the use of artificial antioxidant systems has gained increased popularity as an effective strategy. Nanoscale drug delivery systems loaded with enzymes, bioinspired catalytic nanoparticles and other nanomaterials have emerged as promising candidates. The development of degradable hydrogels scaffolds with antioxidant effects could also enable scientists to positively influence cell fate. This current review summarizes nanobiomaterial-based approaches for redox regulation and their potential applications as central nervous system neurodegenerative disease treatments.
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Affiliation(s)
- Despoina Eleftheriadou
- UCL Centre for Biomaterials in Surgical Reconstruction and Regeneration, Division of Surgery and Interventional Science, Royal Free Campus, University College London, London, NW3 2PF, UK
- Department of Mechanical Engineering, University College London, London, WC1E 7JE, UK
- UCL Centre for Nerve Engineering, University College London, London, WC1E 6BT, UK
| | - Despoina Kesidou
- UCL Centre for Biomaterials in Surgical Reconstruction and Regeneration, Division of Surgery and Interventional Science, Royal Free Campus, University College London, London, NW3 2PF, UK
| | - Francisco Moura
- UCL Centre for Biomaterials in Surgical Reconstruction and Regeneration, Division of Surgery and Interventional Science, Royal Free Campus, University College London, London, NW3 2PF, UK
| | - Eric Felli
- UCL Centre for Biomaterials in Surgical Reconstruction and Regeneration, Division of Surgery and Interventional Science, Royal Free Campus, University College London, London, NW3 2PF, UK
| | - Wenhui Song
- UCL Centre for Biomaterials in Surgical Reconstruction and Regeneration, Division of Surgery and Interventional Science, Royal Free Campus, University College London, London, NW3 2PF, UK
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7
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Zhang K, Xiao X, Li L, Fan Y, Cai Q, Lee IS, Li X. Development of novel oxygen carriers by coupling hemoglobin to functionalized multiwall carbon nanotubes. J Mater Chem B 2020; 7:4821-4832. [PMID: 31389959 DOI: 10.1039/c9tb00894b] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Preparation of stable and effective artificial oxygen carriers (AOCs) is a promising strategy to temporarily replace transfused blood and solve tissue hypoxia. Developing hemoglobin (Hb) loaded particles is one of the main ways to prepare suitable AOCs. Particles with a hierarchical micro/nanostructure can be loaded with plenty of proteins and have attracted great attention. Therefore, multiwall carbon nanotubes (MWCNTs) were chosen to fabricate AOCs. To improve the Hb-loading capacity of MWCNTs, functionalized MWCNTs, including carboxyl-functionalized MWCNTs (MWCNT-COOH), amino-functionalized MWCNTs (MWCNT-NH2), and heparin-conjugated MWCNTs (MWCNT-Hep), were prepared. Then, in this study, Hb was coupled to the functionalized MWCNTs to fabricate the AOCs. The functionalized MWCNTs and the AOCs were characterized by FTIR, SEM, TEM, and zeta potential analysis. The oxygen/Hb-loading capacity of the AOCs was also measured. The adverse effects of the AOCs on human umbilical vein endothelial cells (HUVECs) and human red blood cells (RBCs) were evaluated. The results showed that (1) the functional groups were grafted on the surface of the MWCNTs, and Hb was bound to the functionalized MWCNTs, thus the AOCs were successfully prepared; (2) MWCNT-Hep-Hb had the most stable dispersibility (i.e., the most negative zeta potential) in 0.9 wt% NaCl solution (MWCNT-Hep-Hb < MWCNT-COOH-Hb < MWCNT-Hb < MWCNT-NH2-Hb < 0); (3) MWCNT-Hep had the best Hb-loading capability, which was three times that of purified MWCNTs; (4) with concentrations increased up to 400 μg mL-1, MWCNT-Hep-Hb still had the highest cell viability (97.63% > 80%, ISO 10993-5:2009) and excellent blood biocompatibility. Therefore, MWCNT-Hep-Hb might be a satisfactory candidate as a blood substitute.
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Affiliation(s)
- Ke Zhang
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China.
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8
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He L, Xiong H, Wang B, Zhang Y, Wang J, Zhang H, Li H, Yang Z, Song X. Rational Design of a Two-Photon Ratiometric Fluorescent Probe for Hypochlorous Acid with a Large Stokes Shift. Anal Chem 2020; 92:11029-11034. [DOI: 10.1021/acs.analchem.0c00030] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Long He
- College of Chemistry & Chemical Engineering, Central South University, Changsha 410083, China
| | - Haiqing Xiong
- College of Chemistry & Chemical Engineering, Central South University, Changsha 410083, China
| | - Benhua Wang
- College of Chemistry & Chemical Engineering, Central South University, Changsha 410083, China
| | - Yun Zhang
- College of Chemistry & Chemical Engineering, Central South University, Changsha 410083, China
| | - Jingpei Wang
- College of Chemistry & Chemical Engineering, Central South University, Changsha 410083, China
| | - Hongyan Zhang
- Beijing Key Laboratory of Clothing Materials R&D and Assessment, Beijing Engineering Research Center of Textile Nanofiber, Beijing Institute of Fashion Technology, Beijing 100029, China
| | - Haipu Li
- College of Chemistry & Chemical Engineering, Central South University, Changsha 410083, China
- Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, Changsha 410083, China
| | - Zhaoguang Yang
- College of Chemistry & Chemical Engineering, Central South University, Changsha 410083, China
- Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, Changsha 410083, China
| | - Xiangzhi Song
- College of Chemistry & Chemical Engineering, Central South University, Changsha 410083, China
- Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, Changsha 410083, China
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9
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Far-reaching advances in the role of carbon nanotubes in cancer therapy. Life Sci 2020; 257:118059. [PMID: 32659368 DOI: 10.1016/j.lfs.2020.118059] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Revised: 06/27/2020] [Accepted: 07/02/2020] [Indexed: 12/16/2022]
Abstract
Cancer includes a group of diseases involving unregulated cell growth with the potential to invade or expand to other parts of the body, resulting in an estimate of 9.6 million deaths worldwide in 2018. Manifold studies have been conducted to design more efficacious techniques for cancer therapy due to the inadequacy of conventional treatments including chemotherapy, surgery, and radiation therapy. With the advances in the biomedical applications of nanotechnology-based systems, nanomaterials have gained increasing attention as promising vehicles for targeted cancer therapy and optimizing treatment outcomes. Owing to their outstanding thermal, electrical, optical and chemical properties, carbon nanotubes (CNTs) have been profoundly studied to explore the various perspectives of their application in cancer treatment. The current study aims to review the role of CNTs whether as a carrier or mediator in cancer treatment for enhancing the efficacy as well as the specificity of therapy and reducing adverse side effects. This comprehensive review indicates that CNTs have the capability to be the next generation nanomaterials to actualize noninvasive targeted eradication of tumors. However, further studies are needed to evaluate the consequences of their biomedical application before the transition into clinical trials, since possible adverse effects of CNTs on biological systems have not been clearly understood.
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10
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Chen M, Zeng G, Lai C, Zhang C, Xu P, Yan M, Xiong W. Interactions of carbon nanotubes and/or graphene with manganese peroxidase during biodegradation of endocrine disruptors and triclosan. CHEMOSPHERE 2017; 184:127-136. [PMID: 28586653 DOI: 10.1016/j.chemosphere.2017.05.162] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 05/08/2017] [Accepted: 05/29/2017] [Indexed: 06/07/2023]
Abstract
Molecular-level biodegradation processes of bisphenol A (BPA), nonylphenol (NP) and triclosan (TCS) mediated by manganese peroxidase (MnP) were investigated with and without single-walled carbon nanotube (SWCNT) and/or graphene (GRA). Although the incorporation of SWCNT, GRA or their combination (SWCNT+GRA) did not break up the complexes composed of manganese peroxidase (MnP) and these substrates, they had different effects on the native contacts between the substrates and MnP. GRA tended to decrease the overall stability of the binding between MnP and its substrates. SWCNT or SWCNT+GRA generally had a minor impact on the mean binding energy between MnP and its substrates. We detected some sensitive residues from MnP that were dramatically disturbed by the GRA, SWCNT or SWCNT+GRA. Nanomaterials changed the number and behavior of water molecules adjacent to both MnP and its substrates, which was not due to the destruction of H-bond network formed by sensitive regions and water molecules. The present results are useful for understanding the molecular basis of pollutant biodegradation affected by the nanomaterials in the environment, and are also helpful in assessing the risks of these materials to the environment.
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Affiliation(s)
- Ming Chen
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Guangming Zeng
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China.
| | - Cui Lai
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China.
| | - Chang Zhang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Piao Xu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Min Yan
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Weiping Xiong
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
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11
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Chiu CF, Dar HH, Kapralov AA, Robinson RAS, Kagan VE, Star A. Nanoemitters and innate immunity: the role of surfactants and bio-coronas in myeloperoxidase-catalyzed oxidation of pristine single-walled carbon nanotubes. NANOSCALE 2017; 9:5948-5956. [PMID: 28440832 PMCID: PMC6584033 DOI: 10.1039/c6nr07706d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Single-walled carbon nanotubes (SWCNTs) are experimentally utilized in in vivo imaging and photothermal cancer therapy owing to their unique physicochemical and electronic properties. For these applications, pristine carbon nanotubes are often modified by polymer surfactant coatings to improve their biocompatibility, adding more complexity to their recognition and biodegradation by immuno-competent cells. Here, we investigate the oxidative degradation of SWCNTs catalyzed by neutrophil myeloperoxidase (MPO) using bandgap near-infrared (NIR) photoluminescence and Raman spectroscopy. Our results show diameter-dependence at the initial stages of the oxidative degradation of sodium cholate-, DNA-, and albumin-coated SWCNTs, but not phosphatidylserine-coated SWCNTs. Moreover, sodium deoxycholate- and phospholipid-polyethylene glycol coated SWCNTs were not oxidized under the same reaction conditions, indicating that a surfactant can greatly impact the biodegradability of a nanomaterial. Our data also revealed that possible binding between MPO and surfactant coated-SWCNTs was unfavorable, suggesting that oxidation is likely caused by a hypochlorite generated through halogenation cycles of free MPO, and not MPO bound to the surface of SWCNTs. The identification of SWCNT diameters and coatings that retain NIR fluorescence during the interactions with the components of an innate immune system is important for their applications in in vivo imaging.
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Affiliation(s)
- Cheuk Fai Chiu
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA.
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12
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Chen M, Qin X, Zeng G. Biodegradation of Carbon Nanotubes, Graphene, and Their Derivatives. Trends Biotechnol 2017; 35:836-846. [PMID: 28063621 DOI: 10.1016/j.tibtech.2016.12.001] [Citation(s) in RCA: 114] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 11/18/2016] [Accepted: 12/06/2016] [Indexed: 10/20/2022]
Abstract
Carbon nanotubes (CNTs), graphene (GRA), and their derivatives are promising materials for a wide range of applications such as pollutant removal, enzyme immobilization, bioimaging, biosensors, and drug delivery and are rapidly increasing in use and increasingly mass produced. The biodegradation of carbon nanomaterials by microbes and enzymes is now of great importance for both reducing their toxicity to living organisms and removing them from the environment. Here we review recent progress in the biodegradation field from the point of view of the primary microbes and enzymes that can degrade these nanomaterials, along with experimental and molecular simulation methods for the exploration of nanomaterial degradation. Further efforts should primarily aim toward expanding the repertoire of microbes and enzymes and exploring optimal conditions for the degradation of nanomaterials.
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Affiliation(s)
- Ming Chen
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China; School of Civil and Environmental Engineering, Nanyang Technological University, Singapore 639798
| | - Xiaosheng Qin
- School of Civil and Environmental Engineering, Nanyang Technological University, Singapore 639798.
| | - Guangming Zeng
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
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13
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Rahman MM, Hussein MA, Abdel Salam M, Asiri AM. Fabrication of anl-glutathione sensor based on PEG-conjugated functionalized CNT nanocomposites: a real sample analysis. NEW J CHEM 2017. [DOI: 10.1039/c7nj01704a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Three series of polyethylene glycol–carbon nanotube nanocomposites in the form of PEG/CNTa–e, PEG/f-CNT.Oxia–e, and PEG/CNT.C18a–ehave been fabricated using a dissolution stirring ultra-sonication method.
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Affiliation(s)
- Mohammed M. Rahman
- Chemistry Department
- Faculty of Science
- King Abdulaziz University
- Jeddah 21589
- Saudi Arabia
| | - Mahmoud A. Hussein
- Chemistry Department
- Faculty of Science
- King Abdulaziz University
- Jeddah 21589
- Saudi Arabia
| | - Mohamed Abdel Salam
- Chemistry Department
- Faculty of Science
- King Abdulaziz University
- Jeddah 21589
- Saudi Arabia
| | - Abdullah M. Asiri
- Chemistry Department
- Faculty of Science
- King Abdulaziz University
- Jeddah 21589
- Saudi Arabia
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14
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Landry M, Pinault M, Tchankouo S, Charon É, Ridoux A, Boczkowski J, Mayne-L'Hermite M, Lanone S. Early signs of multi-walled carbon nanotbues degradation in macrophages, via an intracellular pH-dependent biological mechanism; importance of length and functionalization. Part Fibre Toxicol 2016; 13:61. [PMID: 27881140 PMCID: PMC5122009 DOI: 10.1186/s12989-016-0175-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Accepted: 11/17/2016] [Indexed: 12/29/2022] Open
Abstract
Background Carbon nanotubes (CNT) can interact with the biological environment, which could participate in their associated toxicity. We recently demonstrated that pH is an important player of CNT fate inside macrophages. We wanted to further characterize such process, and therefore designed a study dedicated to decipher CNT biodegradation by macrophages, as a function of two major physico-chemical properties in regard with nanotoxicology; length and degree of functionalization. To achieve our aim, we synthesized, following a single initial production process, four MWCNT differing in length and/or surface chemistry: S-CNT (short), SF-CNT (short functionalized), L-CNT (long) and LF-CNT (long functionalized). Results Raman spectroscopy analysis performed on CNT recovered after exposure of RAW 264.7 macrophages for 6, 24, or 48 h demonstrate that CNT show early signs of biodegradation over time inside macrophages. The modulation of CNT length and functionalization, resulting in the modification of iron accessibility, both represent critical determinants of the biodegradation process; short pristine CNT were more prone to biodegradation than long CNT (pristine or functionalized), while short functionalized CNT were protected. Incubation of cells with Concanamycin completely prevents CNT from being modified, demonstrating that this biodegradation process is dependent on an intracellular pH-dependent mechanism. Interestingly, and despite evidence of degradation via Raman spectroscopy, the CNT length and diameter were not altered during the course of the study. Conclusions In conclusion, our results identify a new mechanism of CNT biodegradation inside macrophages. This could give new insights for the understanding of CNT-associated toxicity, and represent important tools to develop safe(r)-by-design nanomaterials. Electronic supplementary material The online version of this article (doi:10.1186/s12989-016-0175-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
| | - Mathieu Pinault
- NIMBE, CEA, CNRS, Université Paris-Saclay, CEA Saclay, 91191, Gif sur Yvette Cedex, France
| | | | - Émeline Charon
- NIMBE, CEA, CNRS, Université Paris-Saclay, CEA Saclay, 91191, Gif sur Yvette Cedex, France
| | | | - Jorge Boczkowski
- INSERM, U955, Equipe 4, Créteil, F-94000, France.,Université Paris Est-Créteil, Faculté de Médecine de Créteil, 8 rue du Général Sarrail, Créteil, F-94000, France.,DHU A-TVB, Service d'explorations fonctionnelles respiratoires, Assistance Publique Hôpitaux de Paris, Hôpitaux Universitaires Henri Mondor, Créteil, F-94000, France
| | | | - Sophie Lanone
- INSERM, U955, Equipe 4, Créteil, F-94000, France. .,Université Paris Est-Créteil, Faculté de Médecine de Créteil, 8 rue du Général Sarrail, Créteil, F-94000, France.
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15
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A glutathione biosensor based on a glassy carbon electrode modified with CdO nanoparticle-decorated carbon nanotubes in a nafion matrix. Mikrochim Acta 2016. [DOI: 10.1007/s00604-016-1987-0] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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16
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17
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Vlasova II, Kapralov AA, Michael ZP, Burkert SC, Shurin MR, Star A, Shvedova AA, Kagan VE. Enzymatic oxidative biodegradation of nanoparticles: Mechanisms, significance and applications. Toxicol Appl Pharmacol 2016; 299:58-69. [PMID: 26768553 PMCID: PMC4811710 DOI: 10.1016/j.taap.2016.01.002] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Revised: 01/01/2016] [Accepted: 01/02/2016] [Indexed: 12/22/2022]
Abstract
Biopersistence of carbon nanotubes, graphene oxide (GO) and several other types of carbonaceous nanomaterials is an essential determinant of their health effects. Successful biodegradation is one of the major factors defining the life span and biological responses to nanoparticles. Here, we review the role and contribution of different oxidative enzymes of inflammatory cells - myeloperoxidase, eosinophil peroxidase, lactoperoxidase, hemoglobin, and xanthine oxidase - to the reactions of nanoparticle biodegradation. We further focus on interactions of nanomaterials with hemoproteins dependent on the specific features of their physico-chemical and structural characteristics. Mechanistically, we highlight the significance of immobilized peroxidase reactive intermediates vs diffusible small molecule oxidants (hypochlorous and hypobromous acids) for the overall oxidative biodegradation process in neutrophils and eosinophils. We also accentuate the importance of peroxynitrite-driven pathways realized in macrophages via the engagement of NADPH oxidase- and NO synthase-triggered oxidative mechanisms. We consider possible involvement of oxidative machinery of other professional phagocytes such as microglial cells, myeloid-derived suppressor cells, in the context of biodegradation relevant to targeted drug delivery. We evaluate the importance of genetic factors and their manipulations for the enzymatic biodegradation in vivo. Finally, we emphasize a novel type of biodegradation realized via the activation of the "dormant" peroxidase activity of hemoproteins by the nano-surface. This is exemplified by the binding of GO to cyt c causing the unfolding and 'unmasking' of the peroxidase activity of the latter. We conclude with the strategies leading to safe by design carbonaceous nanoparticles with optimized characteristics for mechanism-based targeted delivery and regulatable life-span of drugs in circulation.
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Affiliation(s)
- Irina I Vlasova
- Department of Environmental and Occupational Health, Center for Free Radical and Antioxidant Health, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA 15219, United States; Research Institute for Physico-Chemical Medicine, Federal Medico-Biological Agency, Moscow 119453, Russia
| | - Alexandr A Kapralov
- Department of Environmental and Occupational Health, Center for Free Radical and Antioxidant Health, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA 15219, United States
| | - Zachary P Michael
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, United States
| | - Seth C Burkert
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, United States
| | - Michael R Shurin
- Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, PA 15261, United States; Department of Immunology, University of Pittsburgh Medical Center, Pittsburgh, PA 15261, United States
| | - Alexander Star
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, United States
| | - Anna A Shvedova
- Pathology and Physiology Research Branch, Health Effects Laboratory Division (HELD), National Institute for Occupational Safety and Health (NIOSH) and Department of Physiology and Pharmacology, West Virginia University, Morgantown, WV 26505, United States.
| | - Valerian E Kagan
- Department of Environmental and Occupational Health, Center for Free Radical and Antioxidant Health, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA 15219, United States; Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, United States; Departments of Pharmacology and Chemical Biology and Radiation Oncology, University of Pittsburgh, Pittsburgh, PA 15260, United States.
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18
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Hou J, Wan B, Yang Y, Ren XM, Guo LH, Liu JF. Biodegradation of Single-Walled Carbon Nanotubes in Macrophages through Respiratory Burst Modulation. Int J Mol Sci 2016; 17:409. [PMID: 27011169 PMCID: PMC4813264 DOI: 10.3390/ijms17030409] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Revised: 03/14/2016] [Accepted: 03/14/2016] [Indexed: 12/29/2022] Open
Abstract
The biodegradation of carbon nanotubes (CNTs) may be one of major determinants of the toxic outcomes in exposed individuals. In this study, we employed a macrophage/monocyte model, Raw264.7, to investigate the feasibility of regulating the biodegradation of three types of single-walled carbon nanotubes (SWCNTs) (pristine, ox-, and OH-SWCNTs) by respiratory burst modulation. An artificial fluid mimicking the enzymatic reactions of respiratory burst was constituted to reveal the role of respiratory burst played in SWCNT biodegradation. The biodegradation of SWCNTs were characterized by Raman, ultraviolet-visible-near-infrared spectroscopy, and transmission electron microscopy. Our results showed significantly accelerated biodegradation of ox-SWCNTs and OH-SWCNTs in macrophages activated by phorbol myristate acetate (PMA), which could be prevented by N-acetyl-l-cysteine (NAC), whereas p-SWCNTs were resistant to biodegradation. Similar tendencies were observed by using the in vitro enzymatic system, and the degradation rates of these SWCNTs are in the order of OH-SWCNTs > ox-SWCNTs >> p-SWCNTs, suggesting a pivotal role of respiratory burst in accelerating the biodegradation of SWCNTs and that defect sites on SWCNTs might be a prerequisite for the biodegradation to occur. Our findings might provide invaluable clues on the development of intervention measurements for relieving the side effects of SWCNTs and would help to design safer SWCNT products with higher biodegradability and less toxicity.
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Affiliation(s)
- Jie Hou
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
| | - Bin Wan
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
| | - Yu Yang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
| | - Xiao-Min Ren
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
| | - Liang-Hong Guo
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
- Institute of Environment and Health, Jianghan University, Wuhan 430056, China.
| | - Jing-Fu Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
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19
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Bazaka K, Jacob MV, Ostrikov KK. Sustainable Life Cycles of Natural-Precursor-Derived Nanocarbons. Chem Rev 2015; 116:163-214. [PMID: 26717047 DOI: 10.1021/acs.chemrev.5b00566] [Citation(s) in RCA: 144] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Sustainable societal and economic development relies on novel nanotechnologies that offer maximum efficiency at minimal environmental cost. Yet, it is very challenging to apply green chemistry approaches across the entire life cycle of nanotech products, from design and nanomaterial synthesis to utilization and disposal. Recently, novel, efficient methods based on nonequilibrium reactive plasma chemistries that minimize the process steps and dramatically reduce the use of expensive and hazardous reagents have been applied to low-cost natural and waste sources to produce value-added nanomaterials with a wide range of applications. This review discusses the distinctive effects of nonequilibrium reactive chemistries and how these effects can aid and advance the integration of sustainable chemistry into each stage of nanotech product life. Examples of the use of enabling plasma-based technologies in sustainable production and degradation of nanotech products are discussed-from selection of precursors derived from natural resources and their conversion into functional building units, to methods for green synthesis of useful naturally degradable carbon-based nanomaterials, to device operation and eventual disintegration into naturally degradable yet potentially reusable byproducts.
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Affiliation(s)
- Kateryna Bazaka
- Institute for Future Environments, School of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology , Brisbane, Queensland 4000, Australia.,Electronics Materials Lab, College of Science, Technology and Engineering, James Cook University , Townsville, Queensland 4811, Australia.,CSIRO-QUT Joint Sustainable Materials and Devices Laboratory, Commonwealth Scientific and Industrial Research Organization , P.O. Box 218, Lindfield, New South Wales 2070, Australia
| | - Mohan V Jacob
- Electronics Materials Lab, College of Science, Technology and Engineering, James Cook University , Townsville, Queensland 4811, Australia
| | - Kostya Ken Ostrikov
- Institute for Future Environments, School of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology , Brisbane, Queensland 4000, Australia.,CSIRO-QUT Joint Sustainable Materials and Devices Laboratory, Commonwealth Scientific and Industrial Research Organization , P.O. Box 218, Lindfield, New South Wales 2070, Australia.,School of Physics, The University of Sydney , Sydney, New South Wales 2006, Australia
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20
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Degradation-by-design: Surface modification with functional substrates that enhance the enzymatic degradation of carbon nanotubes. Biomaterials 2015; 72:20-8. [DOI: 10.1016/j.biomaterials.2015.08.046] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2015] [Revised: 08/22/2015] [Accepted: 08/25/2015] [Indexed: 12/26/2022]
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21
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Kurapati R, Russier J, Squillaci MA, Treossi E, Ménard-Moyon C, Del Rio-Castillo AE, Vazquez E, Samorì P, Palermo V, Bianco A. Dispersibility-Dependent Biodegradation of Graphene Oxide by Myeloperoxidase. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2015; 11:3985-94. [PMID: 25959808 DOI: 10.1002/smll.201500038] [Citation(s) in RCA: 154] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Revised: 04/08/2015] [Indexed: 05/20/2023]
Abstract
Understanding human health risk associated with the rapidly emerging graphene-based nanomaterials represents a great challenge because of the diversity of applications and the wide range of possible ways of exposure to this type of materials. Herein, the biodegradation of graphene oxide (GO) sheets is reported by using myeloperoxidase (hMPO) derived from human neutrophils in the presence of a low concentration of hydrogen peroxide. The degradation capability of the enzyme on three different GO samples containing different degree of oxidation on their graphenic lattice, leading to a variable dispersibility in aqueous media is compared. hMPO fails in degrading the most aggregated GO, but succeeds to completely metabolize highly dispersed GO samples. The spectroscopy and microscopy analyses provide unambiguous evidence for the key roles played by hydrophilicity, negative surface charge, and colloidal stability of the aqueous GO in their biodegradation by hMPO catalysis.
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Affiliation(s)
- Rajendra Kurapati
- CNRS, Institut de Biologie Moléculaire et Cellulaire, Laboratoire d'Immunopathologie et Chimie Thérapeutique, 67000, Strasbourg, France
| | - Julie Russier
- CNRS, Institut de Biologie Moléculaire et Cellulaire, Laboratoire d'Immunopathologie et Chimie Thérapeutique, 67000, Strasbourg, France
| | - Marco A Squillaci
- ISIS & icFRC, Université de Strasbourg & CNRS, 8 allée Gaspard Monge, 67000, Strasbourg, France
| | | | - Cécilia Ménard-Moyon
- CNRS, Institut de Biologie Moléculaire et Cellulaire, Laboratoire d'Immunopathologie et Chimie Thérapeutique, 67000, Strasbourg, France
| | - Antonio Esaú Del Rio-Castillo
- Departamento de Química Orgánica, Facultad de Ciencias y Tecnologías Químicas-IRICA, Universidad de Castilla-La Mancha, 13071, Ciudad Real, Spain
| | - Ester Vazquez
- Departamento de Química Orgánica, Facultad de Ciencias y Tecnologías Químicas-IRICA, Universidad de Castilla-La Mancha, 13071, Ciudad Real, Spain
| | - Paolo Samorì
- ISIS & icFRC, Université de Strasbourg & CNRS, 8 allée Gaspard Monge, 67000, Strasbourg, France
| | | | - Alberto Bianco
- CNRS, Institut de Biologie Moléculaire et Cellulaire, Laboratoire d'Immunopathologie et Chimie Thérapeutique, 67000, Strasbourg, France
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22
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Mehra NK, Jain NK. Multifunctional hybrid-carbon nanotubes: new horizon in drug delivery and targeting. J Drug Target 2015; 24:294-308. [PMID: 26147085 DOI: 10.3109/1061186x.2015.1055571] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Carbon nanotubes (CNTs) have emerged as an intriguing nanotechnological tool for numerous biomedical applications including biocompatible modules for the bioactives delivery ascribed to their unique properties, such as greater loading efficiency, biocompatibility, non-immunogenicity, high surface area and photoluminescence, that make them ideal candidate in pharmaceutical and biomedical science. The design of multifunctional hybrid-CNTs for drug delivery and targeting may differ from the conventional drug delivery system. The conventional nanocarriers have few limitations, such as inappropriate availability of surface-chemical functional groups for conjugation, low entrapment/loading efficiency as well as stability as per ICH guidelines with generally regarded as safe (GRAS) prominences. The multifunctional hybrid-CNTs will sparked and open a new door for researchers, scientist of the pharmaceutical and biomedical arena. This review summarizes the vivid aspects of CNTs like characterization, supramolecular chemistry of CNTs-dendrimer, CNTs-nanoparticles, CNTs-quantum dots conjugate for delivery of bioactives, not discussed so far.
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Affiliation(s)
- Neelesh Kumar Mehra
- a Pharmaceutics Research Laboratory, Department of Pharmaceutical Sciences, Dr. Hari Singh Gour University , Sagar , India
| | - Narendra Kumar Jain
- a Pharmaceutics Research Laboratory, Department of Pharmaceutical Sciences, Dr. Hari Singh Gour University , Sagar , India
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23
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Biopersistence of PEGylated Carbon Nanotubes Promotes a Delayed Antioxidant Response after Infusion into the Rat Hippocampus. PLoS One 2015; 10:e0129156. [PMID: 26075787 PMCID: PMC4468090 DOI: 10.1371/journal.pone.0129156] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Accepted: 05/05/2015] [Indexed: 12/20/2022] Open
Abstract
Carbon nanotubes are promising nanomaterials for the diagnosis and treatment of brain disorders. However, the ability of these nanomaterials to cross cell membranes and interact with neural cells brings the need for the assessment of their potential adverse effects on the nervous system. This study aimed to investigate the biopersistence of single-walled carbon nanotubes functionalized with polyethylene glycol (SWCNT-PEG) directly infused into the rat hippocampus. Contextual fear conditioning, Y-maze and open field tasks were performed to evaluate the effects of SWCNT-PEG on memory and locomotor activity. The effects of SWCNT-PEG on oxidative stress and morphology of the hippocampus were assessed 1 and 7 days after infusion of the dispersions at 0.5, 1.0 and 2.1 mg/mL. Raman analysis of the hippocampal homogenates indicates the biopersistence of SWCNT-PEG in the hippocampus 7 days post-injection. The infusion of the dispersions had no effect on the acquisition or persistence of the contextual fear memory; likewise, the spatial recognition memory and locomotor activity were not affected by SWCNT-PEG. Histological examination revealed no remarkable morphological alterations after nanomaterial exposure. One day after the infusion, SWCNT-PEG dispersions at 0.5 and 1.0 mg/mL were able to decrease total antioxidant capacity without modifying the levels of reactive oxygen species or lipid hydroperoxides in the hippocampus. Moreover, SWCNT-PEG dispersions at all concentrations induced antioxidant defenses and reduced reactive oxygen species production in the hippocampus at 7 days post-injection. In this work, we found a time-dependent change in antioxidant defenses after the exposure to SWCNT-PEG. We hypothesized that the persistence of the nanomaterial in the tissue can induce an antioxidant response that might have provided resistance to an initial insult. Such antioxidant delayed response may constitute an adaptive response to the biopersistence of SWCNT-PEG in the hippocampus.
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24
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Seo W, Kapralov AA, Shurin GV, Shurin MR, Kagan VE, Star A. Payload drug vs. nanocarrier biodegradation by myeloperoxidase- and peroxynitrite-mediated oxidations: pharmacokinetic implications. NANOSCALE 2015; 7:8689-94. [PMID: 25902750 PMCID: PMC4582775 DOI: 10.1039/c5nr00251f] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
With the advancement of nanocarriers for drug delivery into biomedical practice, assessments of drug susceptibility to oxidative degradation by enzymatic mechanisms of inflammatory cells become important. Here, we investigate oxidative degradation of a carbon nanotube-based drug carrier loaded with Doxorubicin. We employed myeloperoxidase-catalysed and peroxynitrite-mediated oxidative conditions to mimic the respiratory burst of neutrophils and macrophages, respectively. In addition, we revealed that the cytostatic and cytotoxic effects of free Doxorubicin, but not nanotube-carried drug, on melanoma and lung carcinoma cell lines were abolished in the presence of tumor-activated myeloid regulatory cells that create unique myeloperoxidase- and peroxynitrite-induced oxidative conditions. Both ex vivo and in vitro studies demonstrate that the nanocarrier protects the drug against oxidative biodegradation.
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Affiliation(s)
- Wanji Seo
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA.
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25
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Czech B, Oleszczuk P, Wiącek A. Advanced oxidation (H₂O₂ and/or UV) of functionalized carbon nanotubes (CNT-OH and CNT-COOH) and its influence on the stabilization of CNTs in water and tannic acid solution. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2015; 200:161-167. [PMID: 25734505 DOI: 10.1016/j.envpol.2015.02.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Revised: 01/24/2015] [Accepted: 02/23/2015] [Indexed: 06/04/2023]
Abstract
The properties of carbon nanotubes (CNTs) functionalized with -OH and -COOH groups during simulated water treatment with H2O2 and/or UV were tested. There following properties of CNTs were investigated: specific surface area, elemental composition (CHN), dynamic light scattering, Raman spectroscopy, X-ray photoelectron spectroscopy and changes in the CNTs structure were observed using transmission electron microscopy. Treatment of CNTs with H2O2 and/or UV affected their properties. This effect, however, was different depending on the functionalization of CNTs and also on the factor used (UV and/or H2O2). H2O2 plays a key role as a factor modifying the surface of CNT-OHs, whereas the properties of CNT-COOHs were most affected by UV rays. A shortening of the nanotubes, exfoliation, the opening of their ends, and changes in the surface charge were observed as a result of the action of UV and/or H2O2. The changes in observed parameters may influence the stability of the aqueous suspensions of CNTs.
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Affiliation(s)
- Bożena Czech
- Department of Environmental Chemistry, Faculty of Chemistry, Maria Curie-Skłodowska Square 3, 20-031 Lublin, Poland.
| | - Patryk Oleszczuk
- Department of Environmental Chemistry, Faculty of Chemistry, Maria Curie-Skłodowska Square 3, 20-031 Lublin, Poland
| | - Agnieszka Wiącek
- Department of Interfacial Phenomena, Faculty of Chemistry, Maria Curie-Skłodowska Square 3, 20-031 Lublin, Poland
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26
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Chen J, Xiao HJ, Qi T, Chen DL, Long HM, Liu SH. Rare earths exposure and male infertility: the injury mechanism study of rare earths on male mice and human sperm. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:2076-2086. [PMID: 25167826 DOI: 10.1007/s11356-014-3499-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Accepted: 08/20/2014] [Indexed: 06/03/2023]
Abstract
The weight; testis/body coefficient; levels of LDH, SDH, SODH, G-6PD, and testosterone; cell cycle; and cell apoptosis of the male mice were influenced after being treated with 200 mg/[kg/day] of rare earths suspension for 3 weeks. The "Raman fingerprints" of the human sperm DNA exposed to 0.040 mg/ml CeCl3 were very different from those of the untreated; the Raman bands at 789 cm(-1) (backbone phosphodiester), PO4 backbone at 1,094 cm(-1), methylene deformation mode at 1,221 cm(-1), methylene deformation mode at 1,485 cm(-1), and amide II at 1,612 cm(-1), of which intensities and shifts were changed, might be the diagnostic biomarkers or potential therapeutic targets. The injury mechanism might be that the rare earths influence the oxidative stress and blood testosterone barrier, tangle the big biomolecule concurrently, which might cause the testicular cells and vascular system disorder and/or dysfunction, and at the same time change the physical and chemical properties of the sperm directly.
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Affiliation(s)
- Jun Chen
- Department of Infertility and Sexual Medicine, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, 510631, China
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28
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Li C, Zhou L, Wang C, Liu X, Liao K. Electrospinning of a PMA-co-PAA/FP biopolymer nanofiber: enhanced capability for immobilized horseradish peroxidase and its consequence for p-nitrophenol disposal. RSC Adv 2015. [DOI: 10.1039/c5ra05626h] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A biocompatible nanofiber of PMA-co-PAA/FP was fabricated by electrospinning and employed as a matrix for immobilization of HRP. The resulting PMA-co-PAA/FP–HRP can function as an active and recyclable nanobiocatalyst for PNP disposal.
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Affiliation(s)
- Changlong Li
- College of Textiles and Clothing
- Anhui Polytechnic University
- Wuhu
- China
| | - Lei Zhou
- College of Textiles and Clothing
- Anhui Polytechnic University
- Wuhu
- China
| | - Cuie Wang
- College of Textiles and Clothing
- Anhui Polytechnic University
- Wuhu
- China
| | - Xinhua Liu
- College of Textiles and Clothing
- Anhui Polytechnic University
- Wuhu
- China
| | - Kaiming Liao
- Institute of Energy Technology
- National Institute of Advanced Industrial Science and Technology (AIST)
- Tsukuba
- Japan
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29
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Bhattacharya K, Sacchetti C, El-Sayed R, Fornara A, Kotchey GP, Gaugler JA, Star A, Bottini M, Fadeel B. Enzymatic 'stripping' and degradation of PEGylated carbon nanotubes. NANOSCALE 2014; 6:14686-14690. [PMID: 25377797 DOI: 10.1039/c4nr03604b] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Single-walled carbon nanotubes (SWCNTs) coated or functionalized with PEG chains of different molecular weight were assessed for their propensity to undergo biodegradation under in vitro conditions using recombinant myeloperoxidase (MPO) or ex vivo using freshly isolated primary human neutrophils. Our findings suggest that under natural conditions, a combined process of 'stripping' (i.e., defunctionalization) and biodegradation of PEG-SWCNTs might occur and that PEG-SWCNTs are a promising--and degradable--nanomedicine vector.
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Affiliation(s)
- Kunal Bhattacharya
- Division of Molecular Toxicology, Institute of Environmental Medicine, Karolinska Institutet, Nobels väg 13, Stockholm 171 77, Sweden.
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30
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Abstract
The emergence of nanomedicine, a discipline at the nexus of materials engineering, chemistry, biology, and pharmacology, has generated much excitement in the field of translational medical research and provided some unexpected results. Nanomedicine seeks to introduce nanoscale technology to the practice of medicine via the design and development of nanomaterials possessing therapeutic or diagnostic functions. However, as expected, any modification of the base nanomaterial platform to decorate it with solublizing, targeting, therapeutic, or diagnostic modalities yields a material with a very different pharmacological profile than the original platform. Clearly, the goal of nanotechnology is to put into practice a novel synthetic substance in which the function of the complex is greater than the sum of its components. These new compositions must be thoroughly evaluated in vivo. Therefore, reliance on pharmacokinetic predictions based solely on the baseline profile of the original platform can confuse the field and delay progress. Carbon nanotube pharmacokinetic profiles provide an interesting example of this situation. Covalently functionalized nanotubes exhibit fibrillar pharmacology while those nanotubes that are not covalently functionalized transiently behave as fibers and then tend toward an overall colloidal profile in vivo.
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Affiliation(s)
- Michael R McDevitt
- Department of Radiology, Department of Medicine, Memorial Sloan-Kettering Cancer Center, New York, NY 10065
| | - David A Scheinberg
- Department of Molecular Pharmacology and Chemistry, Department of Medicine, Memorial Sloan-Kettering Cancer Center, New York, NY 10065
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Antioxidative protective effect of icariin on the FeSO4/H 2O 2-damaged human sperm based on confocal raman micro-spectroscopy. ACTA ACUST UNITED AC 2014; 34:755-760. [PMID: 25318889 DOI: 10.1007/s11596-014-1348-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2014] [Revised: 07/25/2014] [Indexed: 01/08/2023]
Abstract
Oxidative stress is implicated in male infertility and significantly higher reactive oxygen species are detected in 25% of infertile males. Although different agents of various alternative medicines, including traditional Chinese medicine, have been tried with varying success, evidence remains limited on whether and how much herbs or supplements might help increase the anti-oxidant ability of the sperm. This study examined the anti-oxidative effects of icariin, a flavonoid isolated from Herba Epimedii, on the human sperm. We prepared the FeSO4/H2O2-damaged human sperms, which were co-cultured with icariin in vitro, and then observed the changes of the sperm by employing Raman micro-spectroscopy. The results showed that Raman mapping with a 514 nm excitation laser allowed clear differentiation of the nucleus, neck, and, in particular, the mitochondria-rich middle piece of a human sperm cell. The effect of icariin on different organelles of the sperm was quantified by localized spectral Raman signatures obtained within milli-seconds, and icariin could keep the "Raman fingerprint" of the human sperm the same as the control groups, suggesting that icariin could protect the human sperm from being damaged by FeSO4/H2O2. Icariin may serve as a tonifying and replenishing agent of herbal origin for enhancing reproductive functions.
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32
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Oxidative biodegradation of single-walled carbon nanotubes by partially purified lignin peroxidase from Sparassis latifolia mushroom. J IND ENG CHEM 2014. [DOI: 10.1016/j.jiec.2013.12.022] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Lu N, Li J, Tian R, Peng YY. Binding of Human Serum Albumin to Single-Walled Carbon Nanotubes Activated Neutrophils to Increase Production of Hypochlorous Acid, the Oxidant Capable of Degrading Nanotubes. Chem Res Toxicol 2014; 27:1070-7. [DOI: 10.1021/tx5001317] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Naihao Lu
- Key Laboratory of Functional Small Organic Molecule,
Ministry of
Education and College of Life Science, and ‡Key Laboratory of Green Chemistry,
Jiangxi Province and College of Chemistry and Chemical Engineering, Jiangxi Normal University, 99 Ziyang Road, Nanchang, Jiangxi 330022, China
| | - Jiayu Li
- Key Laboratory of Functional Small Organic Molecule,
Ministry of
Education and College of Life Science, and ‡Key Laboratory of Green Chemistry,
Jiangxi Province and College of Chemistry and Chemical Engineering, Jiangxi Normal University, 99 Ziyang Road, Nanchang, Jiangxi 330022, China
| | - Rong Tian
- Key Laboratory of Functional Small Organic Molecule,
Ministry of
Education and College of Life Science, and ‡Key Laboratory of Green Chemistry,
Jiangxi Province and College of Chemistry and Chemical Engineering, Jiangxi Normal University, 99 Ziyang Road, Nanchang, Jiangxi 330022, China
| | - Yi-Yuan Peng
- Key Laboratory of Functional Small Organic Molecule,
Ministry of
Education and College of Life Science, and ‡Key Laboratory of Green Chemistry,
Jiangxi Province and College of Chemistry and Chemical Engineering, Jiangxi Normal University, 99 Ziyang Road, Nanchang, Jiangxi 330022, China
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34
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Chen DL, Li N, Lin L, Long HM, Lin H, Chen J, Zhang HM, Zeng CC, Liu SH. Confocal mirco-Raman spectroscopic analysis of the antioxidant protection mechanism of the oligosaccharides extracted from Morinda officinalis on human sperm DNA. JOURNAL OF ETHNOPHARMACOLOGY 2014; 153:119-24. [PMID: 24503037 DOI: 10.1016/j.jep.2014.01.021] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2013] [Revised: 12/03/2013] [Accepted: 01/18/2014] [Indexed: 05/27/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVENCE Male infertility is a stressful and frustrating problem for the society, but a number of male infertility treatments are available as traditional Chinese medicine strategies which have been tried with variable success, while evidence is still limited on whether-or how much-herbs or supplements might help increase fertility, so the aim of this study was to investigate if the oligosaccharides extracted from Morinda officialis, a Chinese herb, is the active constituents to the fertility. MATERIALS AND METHODS In this study, we prepared the H2O2-demaged human sperm, cocultured with the oligosaccharides in vitro, then observed the changes of the DNA using confocal micro-Raman spectroscopy, and comparative analysis the differences of the spectra of different treated groups. RESULTS The results showed that the oligosaccharides extracted from Morinda officialis can keep the "Raman fingerprints" of the human sperm DNA almost the same as those of the control groups, but very different from the H2O2-induced groups, especially the intensity of bands at 787, 993, 1094, 1254, 1340, 1376, 1421, 1443, 1487, 1577 and 1662cm(-1) which could be as potential targets for the drugs finding, and further principal component analysis was successfully used to classify the Raman spectra of normal control and model groups. CONCLUSION This results suggested that the oligosaccharides can protect the DNA of human sperm from being damaged by H2O2, and which was one of the active constituents of Morinda officialis on treating infertility. It was also demonstrated that Morinda officialis as a tonifying and replenishing natural herb medicine can be used to enhance reproductive functions, and the Raman spectroscopy could be an applicable technology for screening active components in vitro from herbs.
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Affiliation(s)
- Di-Ling Chen
- Southern Institute of Pharmaceutical Research, South China Normal University, Guangzhou, Guangdong 510631, People׳s Republic of China
| | - Ning Li
- Southern Institute of Pharmaceutical Research, South China Normal University, Guangzhou, Guangdong 510631, People׳s Republic of China
| | - Li Lin
- College of Chinese Materia Medical, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, People׳s Republic of China
| | - He-ming Long
- Department of Oncology, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi 341000, People׳s Republic of China
| | - Hui Lin
- College of Chinese Materia Medical, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, People׳s Republic of China
| | - Jun Chen
- Department of Infertility and Sexual Medicine, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510631, People׳s Republic of China
| | - He-Ming Zhang
- Southern Institute of Pharmaceutical Research, South China Normal University, Guangzhou, Guangdong 510631, People׳s Republic of China.
| | - Chang-chun Zeng
- School of Basic Medical Sciences, Guilin Medical University, Guilin, Guangxi 541004, People׳s Republic of China.
| | - Song-Hao Liu
- Southern Institute of Pharmaceutical Research, South China Normal University, Guangzhou, Guangdong 510631, People׳s Republic of China
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Sauer UG, Vogel S, Aumann A, Hess A, Kolle SN, Ma-Hock L, Wohlleben W, Dammann M, Strauss V, Treumann S, Gröters S, Wiench K, van Ravenzwaay B, Landsiedel R. Applicability of rat precision-cut lung slices in evaluating nanomaterial cytotoxicity, apoptosis, oxidative stress, and inflammation. Toxicol Appl Pharmacol 2014; 276:1-20. [PMID: 24382512 DOI: 10.1016/j.taap.2013.12.017] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Revised: 12/04/2013] [Accepted: 12/19/2013] [Indexed: 01/22/2023]
Abstract
The applicability of rat precision-cut lung slices (PCLuS) in detecting nanomaterial (NM) toxicity to the respiratory tract was investigated evaluating sixteen OECD reference NMs (TiO₂, ZnO, CeO₂, SiO₂, Ag, multi-walled carbon nanotubes (MWCNTs)). Upon 24-hour test substance exposure, the PCLuS system was able to detect early events of NM toxicity: total protein, reduction in mitochondrial activity, caspase-3/-7 activation, glutathione depletion/increase, cytokine induction, and histopathological evaluation. Ion shedding NMS (ZnO and Ag) induced severe tissue destruction detected by the loss of total protein. Two anatase TiO₂ NMs, CeO₂ NMs, and two MWCNT caused significant (determined by trend analysis) cytotoxicity in the WST-1 assay. At non-cytotoxic concentrations, different TiO₂ NMs and one MWCNT increased GSH levels, presumably a defense response to reactive oxygen species, and these substances further induced a variety of cytokines. One of the SiO₂ NMs increased caspase-3/-7 activities at non-cytotoxic levels, and one rutile TiO₂ only induced cytokines. Investigating these effects is, however, not sufficient to predict apical effects found in vivo. Reproducibility of test substance measurements was not fully satisfactory, especially in the GSH and cytokine assays. Effects were frequently observed in negative controls pointing to tissue slice vulnerability even though prepared and handled with utmost care. Comparisons of the effects observed in the PCLuS to in vivo effects reveal some concordances for the metal oxide NMs, but less so for the MWCNT. The highest effective dosages, however, exceeded those reported for rat short-term inhalation studies. To become applicable for NM testing, the PCLuS system requires test protocol optimization.
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Affiliation(s)
- Ursula G Sauer
- Scientific Consultancy - Animal Welfare, Neubiberg, Germany
| | - Sandra Vogel
- Experimental Toxicology and Ecology, BASF SE, Ludwigshafen, Germany; Product Stewardship Water Solutions, BASF SE, Ludwigshafen, Germany
| | - Alexandra Aumann
- Experimental Toxicology and Ecology, BASF SE, Ludwigshafen, Germany
| | - Annemarie Hess
- Experimental Toxicology and Ecology, BASF SE, Ludwigshafen, Germany
| | - Susanne N Kolle
- Experimental Toxicology and Ecology, BASF SE, Ludwigshafen, Germany
| | - Lan Ma-Hock
- Experimental Toxicology and Ecology, BASF SE, Ludwigshafen, Germany
| | - Wendel Wohlleben
- Experimental Toxicology and Ecology, BASF SE, Ludwigshafen, Germany; Material Physics, BASF SE, Ludwigshafen, Germany
| | - Martina Dammann
- Experimental Toxicology and Ecology, BASF SE, Ludwigshafen, Germany
| | - Volker Strauss
- Experimental Toxicology and Ecology, BASF SE, Ludwigshafen, Germany
| | - Silke Treumann
- Experimental Toxicology and Ecology, BASF SE, Ludwigshafen, Germany
| | - Sibylle Gröters
- Experimental Toxicology and Ecology, BASF SE, Ludwigshafen, Germany
| | | | | | - Robert Landsiedel
- Experimental Toxicology and Ecology, BASF SE, Ludwigshafen, Germany.
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Lanone S, Andujar P, Kermanizadeh A, Boczkowski J. Determinants of carbon nanotube toxicity. Adv Drug Deliv Rev 2013; 65:2063-9. [PMID: 23928473 DOI: 10.1016/j.addr.2013.07.019] [Citation(s) in RCA: 126] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2013] [Revised: 07/24/2013] [Accepted: 07/25/2013] [Indexed: 01/27/2023]
Abstract
In the last few years questions have been raised regarding the potential toxicity of carbon nanotubes (CNTs) to humans and environment. It is believed that the physico-chemical characteristics of these materials are key determinants of CNT interaction with living organisms, and hence determine their toxicity. As for other nanomaterials, the most important of these characteristics are the length, diameter, surface area, tendency to agglomerate, bio-durability, presence and nature of catalyst residues as well as chemical functionalization of the CNT. This review highlights the recent advancements in the understanding of the CNT properties which are essential in determining CNT toxicity. Hence the focus is on CNT dimensions, surface properties, bio-durability and corona formation as these fields have evolved greatly in recent years. A deeper understanding of these events and their underlying mechanisms could provide a molecular explanation of the biological and physiological responses following CNT administration and therefore help in the development of safe by design materials.
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37
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Kotchey GP, Zhao Y, Kagan VE, Star A. Peroxidase-mediated biodegradation of carbon nanotubes in vitro and in vivo. Adv Drug Deliv Rev 2013; 65:1921-32. [PMID: 23856412 DOI: 10.1016/j.addr.2013.07.007] [Citation(s) in RCA: 106] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2013] [Revised: 04/26/2013] [Accepted: 07/05/2013] [Indexed: 10/26/2022]
Abstract
As a result of their unique electronic, optical, and mechanical properties, carbon nanotubes (CNTs) have been implemented in therapeutic and imaging applications. In an idealized situation, CNTs would be disposed of after they transport their theranostic payloads. Biodegradation represents an attractive pathway for the elimination of CNT carriers post-delivery and may be integral in catalyzing the release of the cargo from the delivery vehicle. Accordingly, recent research efforts have focused on peroxidase-driven biodegradation of CNTs. In this review, we not only summarize recent efforts to biodegrade CNTs in the test tube, in vitro, and in vivo, but also attempt to explore the fundamental parameters underlying degradation. Encouraged by the in vivo results obtained to date, we envision a future, where carbon-based nano-containers, which are specifically designed to target organs/cells, deliver their cargo, and biodegrade via peroxidase-driven mechanism, will represent an attractive therapeutic delivery option in nanomedicine.
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38
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Chiu CF, Barth BA, Kotchey GP, Zhao Y, Gogick KA, Saidi WA, Petoud S, Star A. Enzyme-catalyzed oxidation facilitates the return of fluorescence for single-walled carbon nanotubes. J Am Chem Soc 2013; 135:13356-64. [PMID: 23672715 PMCID: PMC3773842 DOI: 10.1021/ja400699y] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
In this work, we studied enzyme-catalyzed oxidation of single-walled carbon nanotubes (SWCNTs) produced by the high-pressure carbon monoxide (HiPco) method. While oxidation via strong acids introduced defect sites on SWCNTs and suppressed their near-infrared (NIR) fluorescence, our results indicated that the fluorescence of SWCNTs was restored upon enzymatic oxidation, providing new evidence that the reaction catalyzed by horseradish peroxidase (HRP) in the presence of H2O2 is mainly a defect-consuming step. These results were further supported by both UV-vis-NIR and Raman spectroscopy. Therefore, when acid oxidation followed by HRP-catalyzed enzyme oxidation was employed, shortened (<300 nm in length) and NIR-fluorescent SWCNTs were produced. In contrast, upon treatment with myeloperoxidase, H2O2, and NaCl, the oxidized HiPco SWCNTs underwent complete oxidation (i.e., degradation). The shortened, NIR-fluorescent SWCNTs resulting from HRP-catalyzed oxidation of acid-cut HiPco SWCNTs may find applications in cellular NIR imaging and drug delivery systems.
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Affiliation(s)
- Cheuk Fai Chiu
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
| | - Brian A. Barth
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
| | - Gregg P. Kotchey
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
| | - Yong Zhao
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
| | - Kristy A. Gogick
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
| | - Wissam A. Saidi
- Department of Chemical and Petroleum Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, USA
| | - Stéphane Petoud
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
- Centre de Biophysique Moléculaire, Orléans, France
| | - Alexander Star
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
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Chen DL, Zhang P, Lin L, Shuai O, Zhang HM, Liu SH, Wang JY. Protective effect of Bajijiasu against β-amyloid-induced neurotoxicity in PC12 cells. Cell Mol Neurobiol 2013; 33:837-50. [PMID: 23812758 DOI: 10.1007/s10571-013-9950-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2013] [Accepted: 06/07/2013] [Indexed: 02/06/2023]
Abstract
Beta-amyloid peptide (Aβ), a major protein component of senile plaques associated with Alzheimer's disease (AD), is also directly neurotoxic. Mitigation of Aβ-induced neurotoxicity is thus a possible therapeutic approach to delay or prevent onset and progression of AD. This study evaluated the protective effect of Bajijiasu (β- D-fructofuranosyl (2-2) β- D-fructofuranosyl), a dimeric fructose isolated from the Chinese herb Radix Morinda officinalis, on Aβ-induced neurotoxicity in pheochromocytoma (PC12) cells. Bajijiasu alone had no endogenous neurotoxicity up to 200 μM. Brief pretreatment with 10-40 μM Bajijiasu (2 h) significantly reversed the reduction in cell viability induced by subsequent 24 h exposure to Aβ25-35 (21 μM) as measured by MTT and LDH assays, and reduced Aβ25-35-induced apoptosis as indicated by reduced annexin V-EGFP staining. Bajijiasu also decreased the accumulation of intracellular reactive oxygen species and the lipid peroxidation product malondialdehyde in PC12 cells, upregulated expression of glutathione reductase and superoxide dismutase, prevented depolarization of the mitochondrial membrane potential (Ψm), and blocked Aβ25-35-induced increases in [Ca(2+)] i . Furthermore, Bajijiasu reversed Aβ25-35-induced changes in the expression levels of p21, CDK4, E2F1, Bax, NF-κB p65, and caspase-3. Bajijiasu is neuroprotective against Aβ25-35-induced neurotoxicity in PC12 cells, likely by protecting against oxidative stress and ensuing apoptosis.
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Affiliation(s)
- Di-Ling Chen
- Southern Institute of Pharmaceutical Research, South China Normal University, Guangzhou, People's Republic of China
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