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Zhang Y, Li Z, Guo H, Wang Q, Guo B, Jiang X, Liu Y, Cui S, Wu Z, Yu M, Zhu L, Chen L, Du N, Luo D, Lin Y, Di P, Liu Y. A Biomimetic Multifunctional Scaffold for Infectious Vertical Bone Augmentation. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2310292. [PMID: 38704674 PMCID: PMC11234421 DOI: 10.1002/advs.202310292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 04/04/2024] [Indexed: 05/06/2024]
Abstract
The regenerative treatment of infectious vertical bone defects remains difficult and challenging today. Current clinical treatments are limited in their ability to control bacteria and infection, which is unfavorable for new bone formation and calls for a new type of material with excellent osteogenic and antibacterial properties. Here a multifunctional scaffold is synthesized that mimics natural bone nanostructures by incorporating silver nanowires into a hierarchical, intrafibrillar mineralized collagen matrix (IMC/AgNWs), to achieve the therapeutic goals of inhibiting bacterial activity and promoting infectious alveolar bone augmentation in rats and beagle dogs. An appropriate concentration of 0.5 mg mL-1 AgNWs is selected to balance biocompatibility and antibacterial properties. The achieved IMC/AgNWs exhibit a broad spectrum of antimicrobial properties against Gram-negative Porphyromonas gingivalis and Gram-positive Streptococcus mutans. When the IMC/AgNWs are cocultured with periodontal ligament stem cells, it possesses excellent osteoinductive activities under both non-inflammatory and inflammatory conditions. By constructing a rat mandibular infected periodontal defect model, the IMC/AgNWs achieve a near-complete healing through the canonical BMP/Smad signaling. Moreover, the IMC/AgNWs enhance vertical bone height and osseointegration in peri-implantitis in beagle dogs, indicating the clinical translational potential of IMC/AgNWs for infectious vertical bone augmentation.
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Affiliation(s)
- Yifan Zhang
- Department of Oral ImplantologyNational Center for StomatologyNational Engineering Research Center of Oral Biomaterials and Digital Medical Devices Beijing Key Laboratory of Digital StomatologyTranslational Research Center for Oro‐craniofacial Stem Cells and Systemic HealthPeking University School and Hospital of StomatologyBeijing100081China
| | - Zixin Li
- Department of StomatologyPeking University People's HospitalBeijing100044PR China
| | - Houzuo Guo
- Department of Oral ImplantologyNational Center for StomatologyNational Engineering Research Center of Oral Biomaterials and Digital Medical Devices Beijing Key Laboratory of Digital StomatologyTranslational Research Center for Oro‐craniofacial Stem Cells and Systemic HealthPeking University School and Hospital of StomatologyBeijing100081China
| | - Qibo Wang
- Department of Oral ImplantologyNational Center for StomatologyNational Engineering Research Center of Oral Biomaterials and Digital Medical Devices Beijing Key Laboratory of Digital StomatologyTranslational Research Center for Oro‐craniofacial Stem Cells and Systemic HealthPeking University School and Hospital of StomatologyBeijing100081China
| | - Bowen Guo
- CAS Center for Excellence in NanoscienceBeijing Key Laboratory of Micro‐nano Energy and SensorBeijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesBeijing101400China
| | - Xi Jiang
- Department of Oral ImplantologyNational Center for StomatologyNational Engineering Research Center of Oral Biomaterials and Digital Medical Devices Beijing Key Laboratory of Digital StomatologyTranslational Research Center for Oro‐craniofacial Stem Cells and Systemic HealthPeking University School and Hospital of StomatologyBeijing100081China
| | - Yishu Liu
- Department of StomatologyBeijing Chao‐Yang Hospital of Capital Medical UniversityBeijing100020China
| | - Shengjie Cui
- Department of General DentistryLaboratory of Biomimetic NanomaterialsPeking University School and Hospital of StomatologyBeijing100081China
| | - Zhengda Wu
- Department of Oral ImplantologyNational Center for StomatologyNational Engineering Research Center of Oral Biomaterials and Digital Medical Devices Beijing Key Laboratory of Digital StomatologyTranslational Research Center for Oro‐craniofacial Stem Cells and Systemic HealthPeking University School and Hospital of StomatologyBeijing100081China
| | - Min Yu
- Central LaboratoryDepartment of Orthodontics, National Center for Stomatology,National Engineering Research Center of Oral Biomaterials and Digital Medical Devices Beijing Key Laboratory of Digital Stomatology,Translational Research Center for Oro‐craniofacial Stem Cells and Systemic HealthPeking University School and Hospital of StomatologyBeijing100081China
| | - Lisha Zhu
- Central LaboratoryDepartment of Orthodontics, National Center for Stomatology,National Engineering Research Center of Oral Biomaterials and Digital Medical Devices Beijing Key Laboratory of Digital Stomatology,Translational Research Center for Oro‐craniofacial Stem Cells and Systemic HealthPeking University School and Hospital of StomatologyBeijing100081China
| | - Liyuan Chen
- Central LaboratoryDepartment of Orthodontics, National Center for Stomatology,National Engineering Research Center of Oral Biomaterials and Digital Medical Devices Beijing Key Laboratory of Digital Stomatology,Translational Research Center for Oro‐craniofacial Stem Cells and Systemic HealthPeking University School and Hospital of StomatologyBeijing100081China
| | - Ning Du
- Central LaboratoryDepartment of Orthodontics, National Center for Stomatology,National Engineering Research Center of Oral Biomaterials and Digital Medical Devices Beijing Key Laboratory of Digital Stomatology,Translational Research Center for Oro‐craniofacial Stem Cells and Systemic HealthPeking University School and Hospital of StomatologyBeijing100081China
| | - Dan Luo
- CAS Center for Excellence in NanoscienceBeijing Key Laboratory of Micro‐nano Energy and SensorBeijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesBeijing101400China
| | - Ye Lin
- Department of Oral ImplantologyNational Center for StomatologyNational Engineering Research Center of Oral Biomaterials and Digital Medical Devices Beijing Key Laboratory of Digital StomatologyTranslational Research Center for Oro‐craniofacial Stem Cells and Systemic HealthPeking University School and Hospital of StomatologyBeijing100081China
| | - Ping Di
- Department of Oral ImplantologyNational Center for StomatologyNational Engineering Research Center of Oral Biomaterials and Digital Medical Devices Beijing Key Laboratory of Digital StomatologyTranslational Research Center for Oro‐craniofacial Stem Cells and Systemic HealthPeking University School and Hospital of StomatologyBeijing100081China
| | - Yan Liu
- Central LaboratoryDepartment of Orthodontics, National Center for Stomatology,National Engineering Research Center of Oral Biomaterials and Digital Medical Devices Beijing Key Laboratory of Digital Stomatology,Translational Research Center for Oro‐craniofacial Stem Cells and Systemic HealthPeking University School and Hospital of StomatologyBeijing100081China
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Yang Y, Wang K, Liu X, Xu C, You Q, Zhang Y, Zhu L. Environmental behavior of silver nanomaterials in aquatic environments: An updated review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 907:167861. [PMID: 37852494 DOI: 10.1016/j.scitotenv.2023.167861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 09/25/2023] [Accepted: 10/13/2023] [Indexed: 10/20/2023]
Abstract
The increasing applications of silver nanomaterials (nano-Ag) and their inevitable release posed great potential risks to aquatic organisms and ecosystems. Considerable attention has been attracted on their behaviors and transformations, which were critically important for their subsequent biological toxicities and ecological effects. Therefore, the summary of the recent efforts on the environmental behavior of nano-Ag would be beneficial for understanding the environmental fate and accurate risk assessment. This review summarized the studies on various physical, chemical and biological transformations of nano-Ag, meanwhile, the influencing factors (including the intrinsic properties and environmental conditions) and related mechanisms were highlighted. Surface structure and facets of nano-Ag, abiotic conditions and natural freeze-thaw cycle processes could affect the transformations of nano-Ag under different environmental scenarios (including freshwater, seawater and wastewater). The interactions with co-present components, such as chemicals and other particles, impacted the multiple processes of nano-Ag. Besides, the contradictory effects and mechanisms by several environmental factors were summarized. Lastly, the key knowledge gaps and some aspects that deserve further investigation were also addressed. Therefore, the current review aimed to provide an overall analysis of transformation processes of nano-Ag, which will provide more available information and pave the way for the future research areas.
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Affiliation(s)
- Yi Yang
- 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 300350, China
| | - Kunkun Wang
- 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 300350, China
| | - Xinwei Liu
- 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 300350, China
| | - Chunyi Xu
- 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 300350, China
| | - Qi You
- 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 300350, China
| | - Yinqing Zhang
- 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 300350, China.
| | - Lingyan Zhu
- 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 300350, China
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Jeon S, Lee WS, Song KS, Jeong J, Lee S, Kim S, Kim G, Kim JS, Jeong J, Cho WS. Differential particle and ion kinetics of silver nanoparticles in the lungs and biotransformation to insoluble silver sulfide. JOURNAL OF HAZARDOUS MATERIALS 2023; 452:131223. [PMID: 36948120 DOI: 10.1016/j.jhazmat.2023.131223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 02/23/2023] [Accepted: 03/14/2023] [Indexed: 05/03/2023]
Abstract
The measurement of nanoparticles (NPs) in a biological matrix is essential in various toxicity studies. However, the current knowledge has limitations in differentiating particulate and ionic forms and further identification of their biotransformation. Herein, we evaluate the biotransformation and differential lung clearance kinetics of particulate and ionic forms using PEGylated silver NPs (AgNP-PEGs; 47.51 nm) and PEGylated gold NPs (AuNP-PEGs; 11.76 nm). At 0, 3, and 6 h and 1, 3, 7, and 14 days after a single pharyngeal aspiration in mice at 25 μg/mouse, half of the lung is digested by proteinase K (PK) to separate particulates and ions, and the other half is subjected to the acid digestion method for comparison. The quantitative and qualitative evaluation of lung clearance kinetics suggests that AgNP-PEGs are quickly dissolved and transformed into insoluble silver sulfide (Ag2S), which shows a fast-clearing early phase (0 -6 h; particle T1/2: 4.8 h) and slow-clearing late phase (1 -14 days; particle T1/2: 13.20 days). In contrast, AuNP-PEGs were scarcely cleared or biotransformed in the lungs for 14 days. The lung clearance kinetics of AgNPs and biotransformation shown in this study can be informed by the PK digestion method and cannot be obtained using the acid digestion method.
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Affiliation(s)
- Soyeon Jeon
- Lab of Toxicology, Department of Health Sciences, The Graduate School of Dong-A University, 37, Nakdong-daero 550 beon-gil, Saha-gu, Busan 49315, the Republic of Korea
| | - Wang Sik Lee
- Environmental Disease Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, the Republic of Korea
| | - Kyung Seuk Song
- Korea Conformity Laboratories, 8, Gaetbeol-ro 145 beon-gil, Yeonsu-gu, Incheon 21999, the Republic of Korea
| | - Jiyoung Jeong
- Lab of Toxicology, Department of Health Sciences, The Graduate School of Dong-A University, 37, Nakdong-daero 550 beon-gil, Saha-gu, Busan 49315, the Republic of Korea
| | - Sinuk Lee
- Lab of Toxicology, Department of Health Sciences, The Graduate School of Dong-A University, 37, Nakdong-daero 550 beon-gil, Saha-gu, Busan 49315, the Republic of Korea
| | - Songyeon Kim
- Lab of Toxicology, Department of Health Sciences, The Graduate School of Dong-A University, 37, Nakdong-daero 550 beon-gil, Saha-gu, Busan 49315, the Republic of Korea
| | - Gyuri Kim
- Lab of Toxicology, Department of Health Sciences, The Graduate School of Dong-A University, 37, Nakdong-daero 550 beon-gil, Saha-gu, Busan 49315, the Republic of Korea
| | - Ji-Su Kim
- Primate Resources Center (PRC), Korea Research Institute of Bioscience and Biotechnology (KRIBB), Jeongeup 56216, the Republic of Korea
| | - Jinyoung Jeong
- Environmental Disease Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, the Republic of Korea; KRIBB School, University of Science and Technology, 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, the Republic of Korea.
| | - Wan-Seob Cho
- Lab of Toxicology, Department of Health Sciences, The Graduate School of Dong-A University, 37, Nakdong-daero 550 beon-gil, Saha-gu, Busan 49315, the Republic of Korea.
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Kantak M, Shende P. In-vivo processing of nanoassemblies: a neglected framework for recycling to bypass nanotoxicological therapeutics. Toxicol Res (Camb) 2023; 12:12-25. [PMID: 36866210 PMCID: PMC9972842 DOI: 10.1093/toxres/tfad001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 09/30/2022] [Accepted: 12/25/2022] [Indexed: 02/04/2023] Open
Abstract
The proof-of-concept of nanomaterials (NMs) in the fields of imaging, diagnosis, treatment, and theranostics shows the importance in biopharmaceuticals development due to structural orientation, on-targeting, and long-term stability. However, biotransformation of NMs and their modified form in human body via recyclable techniques are not explored owing to tiny structures and cytotoxic effects. Recycling of NMs offers advantages of dose reduction, re-utilization of the administered therapeutics providing secondary release, and decrease in nanotoxicity in human body. Therefore, approaches like in-vivo re-processing and bio-recycling are essential to overcome nanocargo system-associated toxicities such as hepatotoxicity, nephrotoxicity, neurotoxicity, and lung toxicity. After 3-5 stages of recycling process of some NMs of gold, lipid, iron oxide, polymer, silver, and graphene in spleen, kidney, and Kupffer's cells retain biological efficiency in the body. Thus, substantial attention towards recyclability and reusability of NMs for sustainable development necessitates further advancement in healthcare for effective therapy. This review article outlines biotransformation of engineered NMs as a valuable source of drug carriers and biocatalyst with critical strategies like pH modification, flocculation, or magnetization for recovery of NMs in the body. Furthermore, this article summarizes the challenges of recycled NMs and advances in integrated technologies such as artificial intelligence, machine learning, in-silico assay, etc. Therefore, potential contribution of NM's life-cycle in the recovery of nanosystems for futuristic developments require consideration in site-specific delivery, reduction of dose, remodeling in breast cancer therapy, wound healing action, antibacterial effect, and for bioremediation to develop ideal nanotherapeutics.
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Affiliation(s)
- Maithili Kantak
- Shobhaben Pratapbhai Patel School of Pharmacy and Technology Management, SVKM'S NMIMS, V. L. Mehta Road, Vile Parle (W), Mumbai, India
| | - Pravin Shende
- Shobhaben Pratapbhai Patel School of Pharmacy and Technology Management, SVKM'S NMIMS, V. L. Mehta Road, Vile Parle (W), Mumbai, India
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Hekmat A, Hatamie S, Saboury AA. The effects of synthesized silver nanowires on the structure and esterase-like activity of human serum albumin and their impacts on human endometrial stem cells. INORG NANO-MET CHEM 2022. [DOI: 10.1080/24701556.2022.2034859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Azadeh Hekmat
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Shadie Hatamie
- Institute of NanoEngineering and MicroSystems, National Tsing Hua University, Hsinchu, Taiwan
- Department of Power Mechanical Engineering, National Tsing Hua University, Hsinchu, Taiwan
| | - Ali Akbar Saboury
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
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Shimabukuro M, Hayashi K, Kishida R, Tsuchiya A, Ishikawa K. No-Observed-Effect Level of Silver Phosphate in Carbonate Apatite Artificial Bone on Initial Bone Regeneration. ACS Infect Dis 2022; 8:159-169. [PMID: 34875165 DOI: 10.1021/acsinfecdis.1c00480] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Fracture-related infections require both treatments for bacteria removal and bone reconstruction. The use of combined broad-spectrum antibacterial silver compounds and artificial bone with high osteogenic activity is considered to be an effective strategy for achieving these treatments in one surgery. However, silver compounds are toxic for living tissues even at low concentrations. Herein, we investigated the no-observed-effect level (NOEL) of silver phosphate (Ag3PO4) in a bone substitute composed of carbonate apatite (CO3Ap), a bone mineral, using in vitro and in vivo experiments. In vitro experiments demonstrated that the CO3Ap artificial bone containing ≥0.1 wt % Ag3PO4 exerted antibacterial effects against Staphylococcus epidermidis, while those containing ≤0.3 wt % Ag3PO4 did not affect cellular adhesion, proliferation, differentiation, and calcification of osteoblast-like MC3T3-E1 cells. In vivo experiments demonstrated that the CO3Ap artificial bone containing ≤0.3 wt % Ag3PO4 replaced a new bone to the same levels as those without Ag3PO4 4 weeks after implantation into the bone defect of the rabbit femur condyle. However, the CO3Ap artificial bone containing 0.3 wt % Ag3PO4 caused an inflammatory reaction, whereas those containing ≤0.1 wt % Ag3PO4 did not. Thus, both bone regeneration and infection control without any adverse effects were achieved using the CO3Ap artificial bone containing 0.1 wt % Ag3PO4, indicating that the NOEL of Ag3PO4 was 0.1 wt %. Our results provide an effective strategy for the treatments of fracture-related infections.
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Affiliation(s)
- Masaya Shimabukuro
- Department of Biomaterials, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Koichiro Hayashi
- Department of Biomaterials, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Ryo Kishida
- Department of Biomaterials, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Akira Tsuchiya
- Department of Biomaterials, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Kunio Ishikawa
- Department of Biomaterials, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
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Wall J, Seleci DA, Schworm F, Neuberger R, Link M, Hufnagel M, Schumacher P, Schulz F, Heinrich U, Wohlleben W, Hartwig A. Comparison of Metal-Based Nanoparticles and Nanowires: Solubility, Reactivity, Bioavailability and Cellular Toxicity. NANOMATERIALS 2021; 12:nano12010147. [PMID: 35010097 PMCID: PMC8746854 DOI: 10.3390/nano12010147] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 12/21/2021] [Accepted: 12/28/2021] [Indexed: 11/16/2022]
Abstract
While the toxicity of metal-based nanoparticles (NP) has been investigated in an increasing number of studies, little is known about metal-based fibrous materials, so-called nanowires (NWs). Within the present study, the physico-chemical properties of particulate and fibrous nanomaterials based on Cu, CuO, Ni, and Ag as well as TiO2 and CeO2 NP were characterized and compared with respect to abiotic metal ion release in different physiologically relevant media as well as acellular reactivity. While none of the materials was soluble at neutral pH in artificial alveolar fluid (AAF), Cu, CuO, and Ni-based materials displayed distinct dissolution under the acidic conditions found in artificial lysosomal fluids (ALF and PSF). Subsequently, four different cell lines were applied to compare cytotoxicity as well as intracellular metal ion release in the cytoplasm and nucleus. Both cytotoxicity and bioavailability reflected the acellular dissolution rates in physiological lysosomal media (pH 4.5); only Ag-based materials showed no or very low acellular solubility, but pronounced intracellular bioavailability and cytotoxicity, leading to particularly high concentrations in the nucleus. In conclusion, in spite of some quantitative differences, the intracellular bioavailability as well as toxicity is mostly driven by the respective metal and is less modulated by the shape of the respective NP or NW.
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Affiliation(s)
- Johanna Wall
- Department of Food Chemistry and Toxicology, Faculty of Chemistry and Biosciences, Institute of Applied Biosciences, Karlsruhe Institute of Technology (KIT), 76131 Karlsruhe, Germany; (J.W.); (F.S.); (R.N.); (M.L.); (M.H.); (P.S.)
| | | | - Feranika Schworm
- Department of Food Chemistry and Toxicology, Faculty of Chemistry and Biosciences, Institute of Applied Biosciences, Karlsruhe Institute of Technology (KIT), 76131 Karlsruhe, Germany; (J.W.); (F.S.); (R.N.); (M.L.); (M.H.); (P.S.)
| | - Ronja Neuberger
- Department of Food Chemistry and Toxicology, Faculty of Chemistry and Biosciences, Institute of Applied Biosciences, Karlsruhe Institute of Technology (KIT), 76131 Karlsruhe, Germany; (J.W.); (F.S.); (R.N.); (M.L.); (M.H.); (P.S.)
| | - Martin Link
- Department of Food Chemistry and Toxicology, Faculty of Chemistry and Biosciences, Institute of Applied Biosciences, Karlsruhe Institute of Technology (KIT), 76131 Karlsruhe, Germany; (J.W.); (F.S.); (R.N.); (M.L.); (M.H.); (P.S.)
| | - Matthias Hufnagel
- Department of Food Chemistry and Toxicology, Faculty of Chemistry and Biosciences, Institute of Applied Biosciences, Karlsruhe Institute of Technology (KIT), 76131 Karlsruhe, Germany; (J.W.); (F.S.); (R.N.); (M.L.); (M.H.); (P.S.)
| | - Paul Schumacher
- Department of Food Chemistry and Toxicology, Faculty of Chemistry and Biosciences, Institute of Applied Biosciences, Karlsruhe Institute of Technology (KIT), 76131 Karlsruhe, Germany; (J.W.); (F.S.); (R.N.); (M.L.); (M.H.); (P.S.)
| | | | | | | | - Andrea Hartwig
- Department of Food Chemistry and Toxicology, Faculty of Chemistry and Biosciences, Institute of Applied Biosciences, Karlsruhe Institute of Technology (KIT), 76131 Karlsruhe, Germany; (J.W.); (F.S.); (R.N.); (M.L.); (M.H.); (P.S.)
- Correspondence:
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Song S, Kim KY, Lee SH, Kim KK, Lee K, Lee W, Jeon H, Ko SH. Recent Advances in 1D Nanomaterial‐Based Bioelectronics for Healthcare Applications. ADVANCED NANOBIOMED RESEARCH 2021. [DOI: 10.1002/anbr.202100111] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Affiliation(s)
- Sangmin Song
- Applied Nano and Thermal Science Lab Department of Mechanical Engineering Seoul National University 1 Gwanak-ro Gwanak-gu Seoul 151-742 Korea
- Center for Biomaterials Biomedical Research Institute Korea Institute of Science and Technology (KIST) 5, Hwarang-ro 14-gil Seongbuk-gu Seoul 02792 Korea
| | - Kyung Yeun Kim
- Applied Nano and Thermal Science Lab Department of Mechanical Engineering Seoul National University 1 Gwanak-ro Gwanak-gu Seoul 151-742 Korea
- Center for Biomaterials Biomedical Research Institute Korea Institute of Science and Technology (KIST) 5, Hwarang-ro 14-gil Seongbuk-gu Seoul 02792 Korea
| | - Sun Hee Lee
- Center for Biomaterials Biomedical Research Institute Korea Institute of Science and Technology (KIST) 5, Hwarang-ro 14-gil Seongbuk-gu Seoul 02792 Korea
| | - Kyun Kyu Kim
- Department of Chemical Engineering Stanford University Stanford CA 94305 USA
| | - Kyungwoo Lee
- Center for Biomaterials Biomedical Research Institute Korea Institute of Science and Technology (KIST) 5, Hwarang-ro 14-gil Seongbuk-gu Seoul 02792 Korea
| | - Wonryung Lee
- Center for Biomaterials Biomedical Research Institute Korea Institute of Science and Technology (KIST) 5, Hwarang-ro 14-gil Seongbuk-gu Seoul 02792 Korea
| | - Hojeong Jeon
- Center for Biomaterials Biomedical Research Institute Korea Institute of Science and Technology (KIST) 5, Hwarang-ro 14-gil Seongbuk-gu Seoul 02792 Korea
- KU-KIST Graduate School of Converging Science and Technology Korea University 145, Anam-ro Seongbuk-gu Seoul 02841 Korea
| | - Seung Hwan Ko
- Applied Nano and Thermal Science Lab Department of Mechanical Engineering Seoul National University 1 Gwanak-ro Gwanak-gu Seoul 151-742 Korea
- Institute of Advanced Machines and Design/Institute of Engineering Research Seoul National University Seoul 08826 Korea
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Makvandi P, Chen M, Sartorius R, Zarrabi A, Ashrafizadeh M, Dabbagh Moghaddam F, Ma J, Mattoli V, Tay FR. Endocytosis of abiotic nanomaterials and nanobiovectors: Inhibition of membrane trafficking. NANO TODAY 2021; 40:101279. [PMID: 34518771 PMCID: PMC8425779 DOI: 10.1016/j.nantod.2021.101279] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 08/05/2021] [Accepted: 08/19/2021] [Indexed: 05/04/2023]
Abstract
Humans are exposed to nanoscopical nanobiovectors (e.g. coronavirus SARS-CoV-2) as well as abiotic metal/carbon-based nanomaterials that enter cells serendipitously or intentionally. Understanding the interactions of cell membranes with these abiotic and biotic nanostructures will facilitate scientists to design better functional nanomaterials for biomedical applications. Such knowledge will also provide important clues for the control of viral infections and the treatment of virus-induced infectious diseases. In the present review, the mechanisms of endocytosis are reviewed in the context of how nanomaterials are uptaken into cells. This is followed by a detailed discussion of the attributes of man-made nanomaterials (e.g. size, shape, surface functional groups and elasticity) that affect endocytosis, as well as the different human cell types that participate in the endocytosis of nanomaterials. Readers are then introduced to the concept of viruses as nature-derived nanoparticles. The mechanisms in which different classes of viruses interact with various cell types to gain entry into the human body are reviewed with examples published over the last five years. These basic tenets will enable the avid reader to design advanced drug delivery and gene transfer nanoplatforms that harness the knowledge acquired from endocytosis to improve their biomedical efficacy. The review winds up with a discussion on the hurdles to be addressed in mimicking the natural mechanisms of endocytosis in nanomaterials design.
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Affiliation(s)
- Pooyan Makvandi
- Istituto Italiano di Tecnologia, Centre for Materials Interfaces, Viale Rinaldo Piaggio 34, 56025 Pontedera, Pisa, Italy
| | - Meiling Chen
- Department of Stomatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Rossella Sartorius
- Institute of Biochemistry and Cell Biology (IBBC), National Research Council (CNR), Naples 80131, Italy
| | - Ali Zarrabi
- Sabanci University Nanotechnology Research and Application Center (SUNUM), Tuzla, Istanbul 34956, Turkey
| | - Milad Ashrafizadeh
- Sabanci University Nanotechnology Research and Application Center (SUNUM), Tuzla, Istanbul 34956, Turkey
- Faculty of Engineering and Natural Sciences, Sabanci University, Orta Mahalle, Üniversite Caddesi No. 27, Orhanlı, Tuzla, 34956 Istanbul, Turkey
| | - Farnaz Dabbagh Moghaddam
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran 1477893855, Iran
| | - Jingzhi Ma
- Department of Stomatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Virgilio Mattoli
- Istituto Italiano di Tecnologia, Centre for Materials Interfaces, Viale Rinaldo Piaggio 34, 56025 Pontedera, Pisa, Italy
| | - Franklin R Tay
- The Graduate School, Augusta University, Augusta, GA 30912, United States
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10
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Li Y, Wang WX. Uptake, intracellular dissolution, and cytotoxicity of silver nanowires in cell models. CHEMOSPHERE 2021; 281:130762. [PMID: 34020191 DOI: 10.1016/j.chemosphere.2021.130762] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 04/23/2021] [Accepted: 04/24/2021] [Indexed: 06/12/2023]
Abstract
The uptake, intracellular dissolution, and cytotoxicity of silver nanowires (AgNWs) in two cell models (human keratinocytes - HaCaT cells and murine macrophages) were systemically investigated for the first time. Cellular uptake of AgNWs occurred mainly via pathways of clathrin-dependent endocytosis, caveolae-dependent endocytosis, and phagocytosis. AgNWs could be internalized by two types of cells with numerous lysosomal vesicles detected in close vicinity to AgNWs. Meanwhile, AgNWs exposure caused lysosomal permeabilization and release of cathepsisn B into cytoplasm. Furthermore, for the first time, this study found that AgNWs exposure inhibited the transmembrane ATP binding cassette (ABC) efflux transporter activity, which could make AgNWs as chemosensitizers to increase the toxicity of other xenobiotic pollutants. Toxicity assays evaluating reactive oxygen species production and mitochondrial activity indicated that cytotoxicity differed for different cell types and particles. The intracellular presence of AgNWs with different diameters induced similar toxic events but to different extents. AgNWs were absorbed by macrophages more efficiently than HaCaT cells, while AgNWs exhibited only marginal cytotoxicity towards macrophages compared to HaCaT cells. Using an Ag+ fluorescence probe, it was found that a fraction of AgNWs was dissolved inside the lysosomes. A higher amount of released Ag+ was detected in HaCaT cells than in macrophages, which might partially contribute to their higher cytotoxicity in HaCaT cells. The toxicity of AgNWs in HaCaT cells and macrophages is due to the high-aspect nature of the nanowires rather than the extracellular release of Ag+. This study may be useful for risk assessments of AgNWs in their practical applications in the biomedical field.
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Affiliation(s)
- Yiling Li
- School of Energy and Environment and State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong, China; Research Centre for the Oceans and Human Health, City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, China
| | - Wen-Xiong Wang
- School of Energy and Environment and State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong, China; Research Centre for the Oceans and Human Health, City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, China.
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11
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Deniaud A. Imaging inorganic nanomaterial fate down to the organelle level. Metallomics 2021; 13:6134098. [PMID: 33576806 DOI: 10.1093/mtomcs/mfab006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 02/04/2021] [Accepted: 02/08/2021] [Indexed: 11/14/2022]
Abstract
Nanotoxicology remains an important and emerging field since only recent years have seen the improvement of biological models and exposure setups toward real-life scenarios. The appropriate analysis of nanomaterial fate in these conditions also required methodological developments in imaging to become sensitive enough and element specific. In the last 2-4 years, impressive breakthroughs have been achieved using electron microscopy, nanoscale secondary ion mass spectrometry, X-ray fluorescence microscopy, or fluorescent sensors. In this review, basics of the approaches and application examples in the study of nanomaterial fate in biological systems will be described to highlight recent successes in the field.
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Affiliation(s)
- Aurélien Deniaud
- Univ. Grenoble Alpes, CNRS, CEA, IRIG - Laboratoire de Chimie et Biologie des Métaux, F-38000 Grenoble, France
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12
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Hassan J, Kamrani R, Tabarraei H, Pirri F, Nojani MR, Hayes AW. Degradation of phosalone by silver ion catalytic hydrolysis. Toxicol Mech Methods 2020; 31:182-187. [PMID: 33287621 DOI: 10.1080/15376516.2020.1861672] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Pesticides application is expanding globally as the worldwide population increases demanding a secure and safe food supply. Organophosphorus (OP) pesticides, as a group, are widely used because they are rapidly degraded in the environment and because they have excellent efficacy and an acceptable price point. However, the chemical fate of organophosphorus pesticides is influenced by several factors, including their chemistry in aquatic environments. Among many degradation choices, hydrolysis by metal ions appears to be a good approach. Dissolved metal ions have been shown to promote the hydrolysis of organophosphorus pesticides. Using silver ion, we showed the effectiveness under in vitro and in vivo conditions for this metal ion to decontaminate water polluted by the organophosphorus phosalone. Phosalone was completely degraded in the presence of silver ions in a mole ratio of 7:1 in 20 min. Rainbow trout were divided into experimental groups to investigate the most effective ratio of silver/phosalone for pesticide degradation. Silver ion (2%) at a concentration of 0.75 and 0.1 mL removed phosalone (2%) at concentrations of 0.4 and 0.5 mL. All the rainbow trout survived in these two groups. This experiment suggested that silver ions can be beneficial at ratios in the range of 1:4 to 1:6 by hydrolyzing phosalone by attacking the electron-deficient phosphorus atom in the pesticide.
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Affiliation(s)
- Jalal Hassan
- Faculty of Veterinary Medicine, Division of Toxicology, Department of Comparative Bioscience, University of Tehran, Tehran, Iran
| | - Roya Kamrani
- Faculty of Veterinary Medicine, Division of Toxicology, Department of Comparative Bioscience, University of Tehran, Tehran, Iran
| | - Hadi Tabarraei
- Faculty of Veterinary Medicine, Division of Toxicology, Department of Comparative Bioscience, University of Tehran, Tehran, Iran
| | - Fardad Pirri
- Faculty of Veterinary Medicine, Department of Pharmacology, Islamic Azad University, Karaj, Iran
| | - Mohammad Rezaian Nojani
- Faculty of Veterinary Medicine, Division of Toxicology, Department of Comparative Bioscience, University of Tehran, Tehran, Iran
| | - A Wallace Hayes
- College of Public Health, University of South Florida, Tampa, FL, USA
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13
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Michaeloudes C, Seiffert J, Chen S, Ruenraroengsak P, Bey L, Theodorou IG, Ryan M, Cui X, Zhang J, Shaffer M, Tetley T, Porter AE, Chung KF. Effect of silver nanospheres and nanowires on human airway smooth muscle cells: role of sulfidation. NANOSCALE ADVANCES 2020; 2:5635-5647. [PMID: 34381958 PMCID: PMC8330518 DOI: 10.1039/d0na00745e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 10/09/2020] [Indexed: 06/12/2023]
Abstract
Background: The toxicity of inhaled silver nanoparticles on contractile and pro-inflammatory airway smooth muscle cells (ASMCs) that control airway calibre is unknown. We explored the oxidative activities and sulfidation processes of the toxic-inflammatory response. Method: Silver nanospheres (AgNSs) of 20 nm and 50 nm diameter and silver nanowires (AgNWs), short S-AgNWs, 1.5 μm and long L-AgNWs, 10 μm, both 72 nm in diameter were manufactured. We measured their effects on cell proliferation, mitochondrial reactive oxygen species (ROS) release and membrane potential, and also performed electron microscopic studies. Main results and findings: The greatest effects were observed for the smallest particles with the highest specific surface area and greatest solubility that were avidly internalised. ASMCs exposed to 20 nm AgNSs (25 μg mL-1) for 72 hours exhibited a significant decrease in DNA incorporation (-72.4%; p < 0.05), whereas neither the 50 nm AgNSs nor the s-AgNWs altered DNA synthesis or viability. There was a small reduction in ASMC proliferation for the smaller AgNS, although Ag+ at 25 μL mL-1 reduced DNA synthesis by 93.3% (p < 0.001). Mitochondrial potential was reduced by both Ag+ (25 μg mL-1) by 47.1% and 20 nm Ag NSs (25 μg mL-1) by 40.1% (*both at p < 0.05), but was not affected by 50 nm AgNSs and the AgNWs. None of the samples showed a change in ROS toxicity. However, malondialdehyde release, associated with greater total ROS, was observed for all AgNPs, to an extent following the geometric size (20 nm AgNS: 213%, p < 0.01; 50 nm AgNS: 179.5%, p < 0.01 and L-AgNWs by 156.2%, p < 0.05). The antioxidant, N-acetylcysteine, prevented the reduction in mitochondrial potential caused by 20 nm AgNSs. The smaller nanostructures were internalised and dissolved within the ASMCs with the formation of non-reactive silver sulphide (Ag2S) on their surface, but with very little uptake of L-AgNWs. When ASMCs were incubated with H2S-producing enzyme inhibitors, the spatial extent of Ag2S formation was much greater. Conclusion: The intracellular toxicity of AgNPs in ASMCs is determined by the solubility of Ag+ released and the sulfidation process, effects related to particle size and geometry. Passivation through sulfidation driven by biogenic H2S can outcompete dissolution, thus reducing the toxicity of the smaller intracellular Ag nanostructures.
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Affiliation(s)
| | - Joanna Seiffert
- National Heart & Lung Institute, Imperial College London Dovehouse St London SW3 6LY UK
| | - Shu Chen
- Department of Materials, London Centre for Nanotechnology, Imperial College London SW3 UK
| | - Pakatip Ruenraroengsak
- Department of Materials, London Centre for Nanotechnology, Imperial College London SW3 UK
- Faculty of Pharmacy, Mahidol University Bangkok 10400 Thailand
| | - Leo Bey
- Department of Materials, London Centre for Nanotechnology, Imperial College London SW3 UK
- Faculty of Medicine, University of Malaya Kuala Lumpur 50603 Malaysia
| | - Ioannis G Theodorou
- Department of Materials, London Centre for Nanotechnology, Imperial College London SW3 UK
| | - Mary Ryan
- Department of Materials, London Centre for Nanotechnology, Imperial College London SW3 UK
| | - Xiaoxing Cui
- Nicholas School of Environment, Duke Global Health Institute, Duke University Durham USA
| | - Jim Zhang
- Nicholas School of Environment, Duke Global Health Institute, Duke University Durham USA
| | - Milo Shaffer
- Department of Materials, London Centre for Nanotechnology, Imperial College London SW3 UK
| | - Terry Tetley
- National Heart & Lung Institute, Imperial College London Dovehouse St London SW3 6LY UK
| | - Alexandra E Porter
- Department of Materials, London Centre for Nanotechnology, Imperial College London SW3 UK
| | - Kian Fan Chung
- National Heart & Lung Institute, Imperial College London Dovehouse St London SW3 6LY UK
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14
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Lekamge S, Ball AS, Shukla R, Nugegoda D. The Toxicity of Nanoparticles to Organisms in Freshwater. REVIEWS OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2020; 248:1-80. [PMID: 30413977 DOI: 10.1007/398_2018_18] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Nanotechnology is a rapidly growing industry yielding many benefits to society. However, aquatic environments are at risk as increasing amounts of nanoparticles (NPs) are contaminating waterbodies causing adverse effects on aquatic organisms. In this review, the impacts of environmental exposure to NPs, the influence of the physicochemical characteristics of NPs and the surrounding environment on toxicity and mechanisms of toxicity together with NP bioaccumulation and trophic transfer are assessed with a focus on their impacts on bacteria, algae and daphnids. We identify several gaps which need urgent attention in order to make sound decisions to protect the environment. These include uncertainty in both estimated and measured environmental concentrations of NPs for reliable risk assessment and for regulating the NP industry. In addition toxicity tests and risk assessment methodologies specific to NPs are still at the research and development stage. Also conflicting and inconsistent results on physicochemical characteristics and the fate and transport of NPs in the environment suggest the need for further research. Finally, improved understanding of the mechanisms of NP toxicity is crucial in risk assessment of NPs, since conventional toxicity tests may not reflect the risks associated with NPs. Behavioural effects may be more sensitive and would be efficient in certain situations compared with conventional toxicity tests due to low NP concentrations in field conditions. However, the development of such tests is still lacking, and further research is recommended.
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Affiliation(s)
- Sam Lekamge
- Ecotoxicology Research Group, Centre for Environmental Sustainability and Remediation, School of Science, RMIT University, Bundoora, VIC, Australia.
| | - Andrew S Ball
- Centre for Environmental Sustainability and Remediation, School of Science, RMIT University, Bundoora, VIC, Australia
| | - Ravi Shukla
- Nanobiotechnology Research Laboratory, RMIT University, Melbourne, VIC, Australia
| | - Dayanthi Nugegoda
- Ecotoxicology Research Group, Centre for Environmental Sustainability and Remediation, School of Science, RMIT University, Bundoora, VIC, Australia
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15
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Wang F, Wang Y, Yao X, Ma C, Yin Y, Song M. Length and diameter-dependent phagocytosis and cytotoxicity of long silver nanowires in macrophages. CHEMOSPHERE 2019; 237:124565. [PMID: 31549664 DOI: 10.1016/j.chemosphere.2019.124565] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 07/28/2019] [Accepted: 08/09/2019] [Indexed: 06/10/2023]
Abstract
Long silver nanowires (AgNWs, >5 μm) have shown promising applications in next generation biomaterials. However, the toxicity of long AgNWs is not well characterized in terms of their size. In this study, five AgNWs types, including SAgNW30 (length: 5-10 μm; diameter: 30 nm), MAgNW30 (length: 20-30 μm; diameter: 30 nm), LAgNW30 (length: ∼100 μm; diameter: 30 nm), LAgNW50 (length: ∼100 μm; diameter: 50 nm), and LAgNW100 (length: ∼100 μm; diameter: 100 nm), were used to investigate the size-dependent phagocytosis and cytotoxicity in macrophage. It showed that SAgNW30, MAgNW30, LAgNW30 can be fully phagocytosed by macrophages, but LAgNW50 and LAgNW100 frustrated the phagocytosis. It demonstrated that LAgNW30 can be internalized into macrophage in a curly manner. The size-dependent cytotoxicity was observed in cell viability, apoptosis, mitochondrial damage, phenotypic transition, and inflammatory response in AgNWs-treated macrophage. The AgNWs-induced cytotoxicity was depended on their length and diameter, increased gradually in the order of SAgNW30 > MAgNW30 > LAgNW30 > LAgNW50 > LAgNW100. The findings presented here will assist in the evaluation of the size-dependent cytotoxicity mediated by long AgNWs.
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Affiliation(s)
- Fengbang Wang
- Key Laboratory of Environmental Nanotechnology and Health Effects, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yuanyuan Wang
- Key Laboratory of Environmental Nanotechnology and Health Effects, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xinglei Yao
- Key Laboratory of Environmental Nanotechnology and Health Effects, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Chunyan Ma
- Key Laboratory of Environmental Nanotechnology and Health Effects, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Yongguang Yin
- Key Laboratory of Environmental Nanotechnology and Health Effects, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Maoyong Song
- Key Laboratory of Environmental Nanotechnology and Health Effects, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
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16
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Leo BF, Fearn S, Gonzalez-Cater D, Theodorou I, Ruenraroengsak P, Goode AE, McPhail D, Dexter DT, Shaffer M, Chung KF, Porter AE, Ryan MP. Label-Free Time-of-Flight Secondary Ion Mass Spectrometry Imaging of Sulfur-Producing Enzymes inside Microglia Cells following Exposure to Silver Nanowires. Anal Chem 2019; 91:11098-11107. [PMID: 31310103 DOI: 10.1021/acs.analchem.9b01704] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
There are no methods sensitive enough to detect enzymes within cells, without the use of analyte labeling. Here we show that it is possible to detect protein ion signals of three different H2S-synthesizing enzymes inside microglia after pretreatment with silver nanowires (AgNW) using time-of-flight secondary ion mass spectrometry (TOF-SIMS). Protein fragment ions, including the fragment of amino acid (C4H8N+ = 70 amu), fragments of the sulfur-producing cystathionine-containing enzymes, and the Ag+ ion signal could be detected without the use of any labels; the cells were mapped using the C4H8N+ amino acid fragment. Scanning electron microscopy imaging and energy-dispersive X-ray chemical analysis showed that the AgNWs were inside the same cells imaged by TOF-SIMS and transformed chemically into crystalline Ag2S within cells in which the sulfur-producing proteins were detected. The presence of these sulfur-producing cystathionine-containing enzymes within the cells was confirmed by Western blots and confocal microscopy images of fluorescently labeled antibodies against the sulfur-producing enzymes. Label-free TOF-SIMS is very promising for the label-free identification of H2S-contributing enzymes and their cellular localization in biological systems. The technique could in the future be used to identify which of these enzymes are most contributory.
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Affiliation(s)
- Bey Fen Leo
- Department of Materials and London Centre for Nanotechnology , Imperial College London , Exhibition Road , London SW7 2AZ , U.K.,Central Unit for Advanced Research Imaging (CENTUARI), Faculty of Medicine , University of Malaya , Kuala Lumpur 50603 , Malaysia
| | - Sarah Fearn
- Department of Materials and London Centre for Nanotechnology , Imperial College London , Exhibition Road , London SW7 2AZ , U.K
| | - Daniel Gonzalez-Cater
- Innovation Center of NanoMedicine , 3 Chome-25-14, Tonomachi , Kawasaki 210-0821 , Japan
| | - Ioannis Theodorou
- Department of Materials and London Centre for Nanotechnology , Imperial College London , Exhibition Road , London SW7 2AZ , U.K
| | - Pakatip Ruenraroengsak
- Department of Materials and London Centre for Nanotechnology , Imperial College London , Exhibition Road , London SW7 2AZ , U.K
| | - Angela E Goode
- Department of Materials and London Centre for Nanotechnology , Imperial College London , Exhibition Road , London SW7 2AZ , U.K
| | - David McPhail
- Department of Materials and London Centre for Nanotechnology , Imperial College London , Exhibition Road , London SW7 2AZ , U.K
| | - David T Dexter
- Innovation Center of NanoMedicine , 3 Chome-25-14, Tonomachi , Kawasaki 210-0821 , Japan
| | - Milo Shaffer
- Department of Materials and London Centre for Nanotechnology , Imperial College London , Exhibition Road , London SW7 2AZ , U.K.,Department of Chemistry and London Centre for Nanotechnology , Imperial College London , Exhibition Road , London SW7 2AZ , U.K
| | - Kian F Chung
- Experimental Studies, National Heart & Lung Institute , Imperial College London , London SW3 6LY , U.K
| | - Alexandra E Porter
- Department of Materials and London Centre for Nanotechnology , Imperial College London , Exhibition Road , London SW7 2AZ , U.K
| | - Mary P Ryan
- Department of Materials and London Centre for Nanotechnology , Imperial College London , Exhibition Road , London SW7 2AZ , U.K
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17
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Lehmann SG, Toybou D, Pradas Del Real AE, Arndt D, Tagmount A, Viau M, Safi M, Pacureanu A, Cloetens P, Bohic S, Salomé M, Castillo-Michel H, Omaña-Sanz B, Hofmann A, Vulpe C, Simonato JP, Celle C, Charlet L, Gilbert B. Crumpling of silver nanowires by endolysosomes strongly reduces toxicity. Proc Natl Acad Sci U S A 2019; 116:14893-14898. [PMID: 31285331 PMCID: PMC6660792 DOI: 10.1073/pnas.1820041116] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Fibrous particles interact with cells and organisms in complex ways that can lead to cellular dysfunction, cell death, inflammation, and disease. The development of conductive transparent networks (CTNs) composed of metallic silver nanowires (AgNWs) for flexible touchscreen displays raises new possibilities for the intimate contact between novel fibers and human skin. Here, we report that a material property, nanowire-bending stiffness that is a function of diameter, controls the cytotoxicity of AgNWs to nonimmune cells from humans, mice, and fish without deterioration of critical CTN performance parameters: electrical conductivity and optical transparency. Both 30- and 90-nm-diameter AgNWs are readily internalized by cells, but thinner NWs are mechanically crumpled by the forces imposed during or after endocytosis, while thicker nanowires puncture the enclosing membrane and release silver ions and lysosomal contents to the cytoplasm, thereby initiating oxidative stress. This finding extends the fiber pathology paradigm and will enable the manufacture of safer products incorporating AgNWs.
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Affiliation(s)
- Sylvia G Lehmann
- Institut des Sciences de la Terre, Université de Grenoble-Alpes, CNRS, F-38000 Grenoble Cedex 9, France
| | - Djadidi Toybou
- Institut des Sciences de la Terre, Université de Grenoble-Alpes, CNRS, F-38000 Grenoble Cedex 9, France
- Laboratoire d'Innovation pour les Technologies des Energies Nouvelles et les Nanomatériaux, Département des Technologies des Nouveaux Matériaux, Université de Grenoble-Alpes, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, F-38054 Grenoble Cedex 9, France
| | | | - Devrah Arndt
- Center for Environmental and Human Toxicology, Department of Physiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL 32611
| | - Abderrahmane Tagmount
- Center for Environmental and Human Toxicology, Department of Physiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL 32611
| | - Muriel Viau
- Institut des Sciences de la Terre, Université de Grenoble-Alpes, CNRS, F-38000 Grenoble Cedex 9, France
| | - Malak Safi
- Institut des Sciences de la Terre, Université de Grenoble-Alpes, CNRS, F-38000 Grenoble Cedex 9, France
| | - Alexandra Pacureanu
- European Synchrotron Radiation Facility, Course Spéciale (CS) 40220, 38043 Grenoble Cedex 9, France
| | - Peter Cloetens
- European Synchrotron Radiation Facility, Course Spéciale (CS) 40220, 38043 Grenoble Cedex 9, France
| | - Sylvain Bohic
- European Synchrotron Radiation Facility, Course Spéciale (CS) 40220, 38043 Grenoble Cedex 9, France
- Synchrotron Radiation for Biomedicine, CS 40220, Institut National de la Santé et de la Recherche Médicale, 38043 Grenoble Cedex 9, France
| | - Murielle Salomé
- European Synchrotron Radiation Facility, Course Spéciale (CS) 40220, 38043 Grenoble Cedex 9, France
| | - Hiram Castillo-Michel
- European Synchrotron Radiation Facility, Course Spéciale (CS) 40220, 38043 Grenoble Cedex 9, France
| | - Brenda Omaña-Sanz
- Laboratoire d'Océanologie et de Géosciences (LOG), UMR 8187, Université Lille, F 59000 Lille, France
- UMR 8187, CNRS, F 59000 Lille, France
- UMR 8187, Université Littoral Côte d'Opale, F 62930 Wimereux, France
| | - Annette Hofmann
- Laboratoire d'Océanologie et de Géosciences (LOG), UMR 8187, Université Lille, F 59000 Lille, France
- UMR 8187, CNRS, F 59000 Lille, France
- UMR 8187, Université Littoral Côte d'Opale, F 62930 Wimereux, France
| | - Christopher Vulpe
- Center for Environmental and Human Toxicology, Department of Physiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL 32611
| | - Jean-Pierre Simonato
- Laboratoire d'Innovation pour les Technologies des Energies Nouvelles et les Nanomatériaux, Département des Technologies des Nouveaux Matériaux, Université de Grenoble-Alpes, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, F-38054 Grenoble Cedex 9, France
| | - Caroline Celle
- Laboratoire d'Innovation pour les Technologies des Energies Nouvelles et les Nanomatériaux, Département des Technologies des Nouveaux Matériaux, Université de Grenoble-Alpes, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, F-38054 Grenoble Cedex 9, France
| | - Laurent Charlet
- Institut des Sciences de la Terre, Université de Grenoble-Alpes, CNRS, F-38000 Grenoble Cedex 9, France
| | - Benjamin Gilbert
- Institut des Sciences de la Terre, Université de Grenoble-Alpes, CNRS, F-38000 Grenoble Cedex 9, France;
- Energy Geoscience Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720
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18
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Madeira A, Plissonneau M, Servant L, Goldthorpe IA, Tréguer-Delapierre M. Increasing Silver Nanowire Network Stability through Small Molecule Passivation. NANOMATERIALS 2019; 9:nano9060899. [PMID: 31226818 PMCID: PMC6631436 DOI: 10.3390/nano9060899] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 06/13/2019] [Accepted: 06/14/2019] [Indexed: 11/16/2022]
Abstract
Silver nanowire (AgNW) transparent electrodes show promise as an alternative to indium tin oxide (ITO). However, these nanowire electrodes degrade in air, leading to significant resistance increases. We show that passivating the nanowire surfaces with small organic molecules of 11-mercaptoundecanoic acid (MUA) does not affect electrode transparency contrary to typical passivation films, and is inexpensive and simple to deposit. The sheet resistance of a 32 nm diameter silver nanowire network coated with MUA increases by only 12% over 120 days when exposed to atmospheric conditions but kept in the dark. The increase is larger when exposed to daylight (588%), but is still nearly two orders of magnitude lower than the resistance increase of unpassivated networks. The difference between the experiments performed under daylight versus the dark exemplifies the importance of testing passivation materials under light exposure.
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Affiliation(s)
- Alexandra Madeira
- CNRS, Institut de Chimie de la Matière Condensée de Bordeaux, University Bordeaux, UMR 5026, 33687 Pessac, France.
| | - Marie Plissonneau
- CNRS, Institut de Chimie de la Matière Condensée de Bordeaux, University Bordeaux, UMR 5026, 33687 Pessac, France.
| | - Laurent Servant
- Institut des Sciences Moléculaires, University of Bordeaux, UMR 5255 33405 TALENCE CEDEX, France.
| | - Irene A Goldthorpe
- Department of Electrical & Computer Engineering and The Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, ON N2L 3G1, Canada.
| | - Mona Tréguer-Delapierre
- CNRS, Institut de Chimie de la Matière Condensée de Bordeaux, University Bordeaux, UMR 5026, 33687 Pessac, France.
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19
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Fizeșan I, Cambier S, Moschini E, Chary A, Nelissen I, Ziebel J, Audinot JN, Wirtz T, Kruszewski M, Pop A, Kiss B, Serchi T, Loghin F, Gutleb AC. In vitro exposure of a 3D-tetraculture representative for the alveolar barrier at the air-liquid interface to silver particles and nanowires. Part Fibre Toxicol 2019; 16:14. [PMID: 30940208 PMCID: PMC6444883 DOI: 10.1186/s12989-019-0297-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 03/06/2019] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND The present study aimed to evaluate the potential differences in the biological effects of two types of spherical silver particles of 20 and 200 nm (Ag20 and Ag200), and of PVP-coated silver nanowires (AgNWs) with a diameter of 50 nm and length up to 50 μm, using a complex 3D model representative for the alveolar barrier cultured at air-liquid interface (ALI). The alveolar model was exposed to 0.05, 0.5 and 5 μg/cm2 of test compounds at ALI using a state-of-the-art exposure system (Vitrocell™Cloud System). Endpoints related to the oxidative stress induction, anti-oxidant defence mechanisms, pro-inflammatory responses and cellular death were selected to evaluate the biocompatibility of silver particles and nanowires (AgNMs) and to further ascribe particular biological effects to the different morphologic properties between the three types of AgNMs evaluated. RESULTS Significant cytotoxic effect was observed for all three types of AgNMs at the highest tested doses. The increased mRNA levels of the pro-apoptotic gene CASP7 suggests that apoptosis may occur after exposure to AgNWs. All three types of AgNMs increased the mRNA level of the anti-oxidant enzyme HMOX-1 and of the metal-binding anti-oxidant metallothioneins (MTs), with AgNWs being the most potent inducer. Even though all types of AgNMs induced the nuclear translocation of NF-kB, only AgNWs increased the mRNA level of pro-inflammatory mediators. The pro-inflammatory response elicited by AgNWs was further confirmed by the increased secretion of the 10 evaluated interleukins. CONCLUSION In the current study, we demonstrated that the direct exposure of a complex tetra-culture alveolar model to different types of AgNMs at ALI induces shape- and size-specific biological responses. From the three AgNMs tested, AgNWs were the most potent in inducing biological alterations. Starting from 50 ng/cm2, a dose representative for an acute exposure in a high exposure occupational setting, AgNWs induced prominent changes indicative for a pro-inflammatory response. Even though the acute responses towards a dose representative for a full-lifetime exposure were also evaluated, chronic exposure scenarios at low dose are still unquestionably needed to reveal the human health impact of AgNMs during realistic conditions.
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Affiliation(s)
- Ionel Fizeșan
- Toxicology Department, Faculty of Pharmacy, Iuliu Hațieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Sébastien Cambier
- Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology, Belvaux, Luxembourg
| | - Elisa Moschini
- Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology, Belvaux, Luxembourg
| | - Aline Chary
- Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology, Belvaux, Luxembourg
| | - Inge Nelissen
- Health Unit, Flemish Institute for Technological Research (VITO NV), Mol, Belgium
| | - Johanna Ziebel
- Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology, Belvaux, Luxembourg
| | - Jean-Nicolas Audinot
- Material Research and Technology (MRT) Department, Luxembourg Institute of Science and Technology, Belvaux, Luxembourg
| | - Tom Wirtz
- Material Research and Technology (MRT) Department, Luxembourg Institute of Science and Technology, Belvaux, Luxembourg
| | - Marcin Kruszewski
- Faculty of Medicine, University of Information Technology and Management in Rzeszow, Sucharskiego 2, Rzeszow, Poland
- Centre for Radiobiology and Biological Dosimetry, Institute of Nuclear Chemistry and Technology, Dorodna 16, Warszawa, Poland
| | - Anca Pop
- Toxicology Department, Faculty of Pharmacy, Iuliu Hațieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Béla Kiss
- Toxicology Department, Faculty of Pharmacy, Iuliu Hațieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Tommaso Serchi
- Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology, Belvaux, Luxembourg
| | - Felicia Loghin
- Toxicology Department, Faculty of Pharmacy, Iuliu Hațieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Arno C. Gutleb
- Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology, Belvaux, Luxembourg
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Zhang W, Ke S, Sun C, Xu X, Chen J, Yao L. Fate and toxicity of silver nanoparticles in freshwater from laboratory to realistic environments: a review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:7390-7404. [PMID: 30673947 DOI: 10.1007/s11356-019-04150-0] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Accepted: 01/02/2019] [Indexed: 06/09/2023]
Abstract
The fate and risk assessment of silver nanoparticles (Ag NPs) is an important environmental health issue. The toxic effects, mechanisms, and modes of action of Ag NPs on aquatic organisms have been extensively determined in the laboratory. However, knowledge gaps and discrepancies exist between laboratory studies and realistic environmental research; such inconsistencies hinder the development of health and safety regulations. To bridge these gaps, this review summarizes how environmental conditions and the physicochemical properties of Ag NPs affect the inconsistent findings between laboratory studies and realistic environmental research. Moreover, this paper systematically reviews different toxic effects of Ag NPs in a realistic environment and compares these effects with those in the laboratory, which is helpful for assessing the environmental fate and risk of Ag NPs. The hazardous effects of Ag NPs on the whole aquatic ecosystem with low concentrations (μg L-1) and long-term periods (months to years) are detailed. Furthermore, two perspectives of future toxicity studies of Ag NPs in realistic freshwater environments are emphasized.
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Affiliation(s)
- Weicheng Zhang
- Collaborative Innovation Center of Water Security for the Water Source Region of Mid-line of the South-to-North Diversion Project of Henan Province, Nanyang Normal University, 1638 Wolong Road, Nanyang, Henan Province, China.
- Henan Key Laboratory of Ecological Security for Water Source Region of Mid-line of South-to-North Diversion Project, Nanyang Normal University, 1638 Wolong Road, Nanyang, Henan Province, China.
| | - Song Ke
- Collaborative Innovation Center of Water Security for the Water Source Region of Mid-line of the South-to-North Diversion Project of Henan Province, Nanyang Normal University, 1638 Wolong Road, Nanyang, Henan Province, China
- Henan Key Laboratory of Ecological Security for Water Source Region of Mid-line of South-to-North Diversion Project, Nanyang Normal University, 1638 Wolong Road, Nanyang, Henan Province, China
| | - Caiyun Sun
- Collaborative Innovation Center of Water Security for the Water Source Region of Mid-line of the South-to-North Diversion Project of Henan Province, Nanyang Normal University, 1638 Wolong Road, Nanyang, Henan Province, China
- Henan Key Laboratory of Ecological Security for Water Source Region of Mid-line of South-to-North Diversion Project, Nanyang Normal University, 1638 Wolong Road, Nanyang, Henan Province, China
| | - Xin Xu
- Collaborative Innovation Center of Water Security for the Water Source Region of Mid-line of the South-to-North Diversion Project of Henan Province, Nanyang Normal University, 1638 Wolong Road, Nanyang, Henan Province, China
- Henan Key Laboratory of Ecological Security for Water Source Region of Mid-line of South-to-North Diversion Project, Nanyang Normal University, 1638 Wolong Road, Nanyang, Henan Province, China
| | - Jibao Chen
- Collaborative Innovation Center of Water Security for the Water Source Region of Mid-line of the South-to-North Diversion Project of Henan Province, Nanyang Normal University, 1638 Wolong Road, Nanyang, Henan Province, China
- Henan Key Laboratory of Ecological Security for Water Source Region of Mid-line of South-to-North Diversion Project, Nanyang Normal University, 1638 Wolong Road, Nanyang, Henan Province, China
| | - Lunguang Yao
- Collaborative Innovation Center of Water Security for the Water Source Region of Mid-line of the South-to-North Diversion Project of Henan Province, Nanyang Normal University, 1638 Wolong Road, Nanyang, Henan Province, China.
- Henan Key Laboratory of Ecological Security for Water Source Region of Mid-line of South-to-North Diversion Project, Nanyang Normal University, 1638 Wolong Road, Nanyang, Henan Province, China.
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21
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Filip GA, Moldovan B, Baldea I, Olteanu D, Suharoschi R, Decea N, Cismaru CM, Gal E, Cenariu M, Clichici S, David L. UV-light mediated green synthesis of silver and gold nanoparticles using Cornelian cherry fruit extract and their comparative effects in experimental inflammation. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2018; 191:26-37. [PMID: 30562719 DOI: 10.1016/j.jphotobiol.2018.12.006] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 11/28/2018] [Accepted: 12/10/2018] [Indexed: 11/18/2022]
Abstract
The purpose of our study is to investigate the comparative effects of materials based on silver and gold nanoparticles functionalized with polyphenols from Cornus Mas extract (AgNPs-CM and AuNPs-CM) in vivo on experimental inflammation. The nanoparticles were obtained at room temperature under UV irradiation and were characterized by different methods: ultraviolet-visible spectroscopy, transmission electron microscopy, X ray diffraction, Fourier transform infrared spectroscopy and dynamic light scattering. The modulatory effects of AgNPs-CM and AuNPs-CM on inflammation were quantified by oxidative stress parameters, pro and anti-inflammatory cytokines levels and apoptosis assessment at 2 h, 24 and 48 h after induction of inflammation with carrageenan in the paw tissue of Wistar rats. Our results showed that silver and gold nanoparticles only partial and for a short period have mobilized the antioxidant defense mechanisms. In addition, they diminished inflammation and apoptosis in the early stage while later, at 48 h, exerted an immunomodulatory effect, activated ERK ½ and induced apoptosis. The photoreduced silver and gold nanoparticles, functionalized with natural compounds, modulated the inflammation in a similar manner in the soft tissue injected with carrageenan. In order to decipher the mechanisms involved in interactions of metallic nanoparticles with biological systems and for a complete assessment of the risks and benefits of these products in clinical practice long term studies are necessary.
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Affiliation(s)
- Gabriela Adriana Filip
- Department of Physiology, Iuliu Hatieganu University of Medicine and Pharmacy, Clinicilor 1-3, Cluj-Napoca, Romania.
| | - Bianca Moldovan
- Research Center for Advanced Chemical Analysis, Instrumentation and Chemometrics (ANALYTICA), Faculty of Chemistry and Chemical Engineering, Babeş-Bolyai University, 11 Arany Janos Street, 400028, Cluj-Napoca, Romania.
| | - Ioana Baldea
- Department of Physiology, Iuliu Hatieganu University of Medicine and Pharmacy, Clinicilor 1-3, Cluj-Napoca, Romania.
| | - Diana Olteanu
- Department of Physiology, Iuliu Hatieganu University of Medicine and Pharmacy, Clinicilor 1-3, Cluj-Napoca, Romania.
| | - Ramona Suharoschi
- University of Agricultural Sciences and Veterinary Medicine, Faculty of Food Science and Technology, Calea Manastur 3-5, 400372 Cluj-Napoca, Romania.
| | - Nicoleta Decea
- Department of Physiology, Iuliu Hatieganu University of Medicine and Pharmacy, Clinicilor 1-3, Cluj-Napoca, Romania.
| | - Cristina Mihaela Cismaru
- Department of Infectious Diseases, "Iuliu Hatieganu" University of Medicine and Pharmacy, 400348 Cluj-Napoca, Romania.
| | - Emese Gal
- Faculty of Chemistry and Chemical Engineering, Babeş-Bolyai University, 11 Arany Janos Street, 400028 Cluj-Napoca, Romania.
| | - Mihai Cenariu
- University of Agricultural Sciences and Veterinary Medicine, Department of Biochemistry, Calea Manastur 3-5, 400372 Cluj-Napoca, Romania.
| | - Simona Clichici
- Department of Physiology, Iuliu Hatieganu University of Medicine and Pharmacy, Clinicilor 1-3, Cluj-Napoca, Romania.
| | - Luminita David
- Faculty of Chemistry and Chemical Engineering, Babeş-Bolyai University, 11 Arany Janos Street, 400028 Cluj-Napoca, Romania.
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22
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Ellis T, Chiappi M, García-Trenco A, Al-Ejji M, Sarkar S, Georgiou TK, Shaffer MSP, Tetley TD, Schwander S, Ryan MP, Porter AE. Multimetallic Microparticles Increase the Potency of Rifampicin against Intracellular Mycobacterium tuberculosis. ACS NANO 2018; 12:5228-5240. [PMID: 29767993 DOI: 10.1021/acsnano.7b08264] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Mycobacterium tuberculosis ( M.tb) has the extraordinary ability to adapt to the administration of antibiotics through the development of resistance mechanisms. By rapidly exporting drugs from within the cytosol, these pathogenic bacteria diminish antibiotic potency and drive the presentation of drug-tolerant tuberculosis (TB). The membrane integrity of M.tb is pivotal in retaining these drug-resistant traits. Silver (Ag) and zinc oxide (ZnO) nanoparticles (NPs) are established antimicrobial agents that effectively compromise membrane stability, giving rise to increased bacterial permeability to antibiotics. In this work, biodegradable multimetallic microparticles (MMPs), containing Ag NPs and ZnO NPs, were developed for use in pulmonary delivery of antituberculous drugs to the endosomal system of M.tb-infected macrophages. Efficient uptake of MMPs by M.tb-infected THP1 cells was demonstrated using an in vitro macrophage infection model, with direct interaction between MMPs and M.tb visualized with the use of electron FIB-SEM tomography. The release of Ag NPs and ZnO NPs within the macrophage endosomal system increased the potency of the model antibiotic rifampicin by as much as 76%, realized through an increase in membrane disorder of intracellular M.tb. MMPs were effective at independently driving membrane destruction of extracellular bacilli located at the exterior face of THP1 macrophages. This MMP system presents as an effective drug delivery vehicle that could be used for the transport of antituberculous drugs such as rifampicin to infected alveolar macrophages, while increasing drug potency. By increasing M.tb membrane permeability, such a system may prove effectual in improving treatment of drug-susceptible TB in addition to M.tb strains considered drug-resistant.
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Affiliation(s)
- Timothy Ellis
- Department of Materials and London Centre for Nanotechnology , Imperial College London , London SW7 2AZ , U.K
| | - Michele Chiappi
- National Heart & Lung Institute , Imperial College London , London SW7 2AZ , U.K
| | - Andrés García-Trenco
- Department of Chemistry and London Centre for Nanotechnology , Imperial College London , London SW7 2AZ , U.K
| | - Maryam Al-Ejji
- Department of Materials and London Centre for Nanotechnology , Imperial College London , London SW7 2AZ , U.K
| | - Srijata Sarkar
- Department of Environmental and Occupational Health , Rutgers School of Public Health , Piscataway , New Jersey 08854 , United States
| | - Theoni K Georgiou
- Department of Materials and London Centre for Nanotechnology , Imperial College London , London SW7 2AZ , U.K
| | - Milo S P Shaffer
- Department of Chemistry and London Centre for Nanotechnology , Imperial College London , London SW7 2AZ , U.K
| | - Teresa D Tetley
- National Heart & Lung Institute , Imperial College London , London SW7 2AZ , U.K
| | - Stephan Schwander
- Department of Environmental and Occupational Health , Rutgers School of Public Health , Piscataway , New Jersey 08854 , United States
- Office for Global Public Health Affairs , Rutgers School of Public Health , Piscataway , New Jersey 08854 , United States
| | - Mary P Ryan
- Department of Materials and London Centre for Nanotechnology , Imperial College London , London SW7 2AZ , U.K
| | - Alexandra E Porter
- Department of Materials and London Centre for Nanotechnology , Imperial College London , London SW7 2AZ , U.K
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23
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Marchioni M, Jouneau PH, Chevallet M, Michaud-Soret I, Deniaud A. Silver nanoparticle fate in mammals: Bridging in vitro and in vivo studies. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2018.03.008] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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24
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In Vitro Dermal Safety Assessment of Silver Nanowires after Acute Exposure: Tissue vs. Cell Models. NANOMATERIALS 2018; 8:nano8040232. [PMID: 29641466 PMCID: PMC5923562 DOI: 10.3390/nano8040232] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 03/23/2018] [Accepted: 04/03/2018] [Indexed: 12/12/2022]
Abstract
Silver nanowires (AgNW) are attractive materials that are anticipated to be incorporated into numerous consumer products such as textiles, touchscreen display, and medical devices that could be in direct contact with skin. There are very few studies on the cellular toxicity of AgNW and no studies that have specifically evaluated the potential toxicity from dermal exposure. To address this question, we investigated the dermal toxicity after acute exposure of polymer-coated AgNW with two sizes using two models, human primary keratinocytes and human reconstructed epidermis. In keratinocytes, AgNW are rapidly and massively internalized inside cells leading to dose-dependent cytotoxicity that was not due to Ag⁺ release. Analysing our data with different dose metrics, we propose that the number of NW is the most appropriate dose-metric for studies of AgNW toxicity. In reconstructed epidermis, the results of a standard in vitro skin irritation assay classified AgNW as non-irritant to skin and we found no evidence of penetration into the deeper layer of the epidermis. The findings show that healthy and intact epidermis provides an effective barrier for AgNW, although the study does not address potential transport through follicles or injured skin. The combined cell and tissue model approach used here is likely to provide an important methodology for assessing the risks for skin exposure to AgNW from consumer products.
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25
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Lasat MM, Chung KF, Lead J, McGrath S, Owen RJ, Rocks S, Unrine J, Zhang J. Advancing the Understanding of Environmental Transformations, Bioavailability and Effects of Nanomaterials, an International US Environmental Protection Agency-UK Environmental Nanoscience Initiative Joint Program. ACTA ACUST UNITED AC 2018; 9:385-404. [PMID: 29910967 PMCID: PMC5998674 DOI: 10.4236/jep.2018.94025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Nanotechnology has significant economic, health, and environmental benefits, including renewable energy and innovative environmental solutions. Manufactured nanoparticles have been incorporated into new materials and products because of their novel or enhanced properties. These very same properties also have prompted concerns about the potential environmental and human health hazard and risk posed by the manufactured nanomaterials. Appropriate risk management responses require the development of models capable of predicting the environmental and human health effects of the nanomaterials. Development of predictive models has been hampered by a lack of information concerning the environmental fate, behavior and effects of manufactured nanoparticles. The United Kingdom (UK) Environmental Nanoscience Initiative and the United States (US) Environmental Protection Agency have developed an international research program to enhance the knowledgebase and develop risk-predicting models for manufactured nanoparticles. Here we report selected highlights of the program as it sought to maximize the complementary strengths of the transatlantic scientific communities by funding three integrated US-UK consortia to investigate the transformation of these nanoparticles in terrestrial, aquatic, and atmospheric environment. Research results demonstrate there is a functional relationship between the physicochemical properties of environmentally transformed nanomaterials and their effects and that this relationship is amenable to modeling. In addition, the joint transatlantic program has allowed the leveraging of additional funding, promoting transboundary scientific collaboration.
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Affiliation(s)
- Mitch M Lasat
- Office of Research and Development, United States Environmental Protection Agency, Washington DC, USA
| | - Kian Fan Chung
- National Heart and Lung Institute, Imperial College, London, UK
| | - Jamie Lead
- Centre for Environmental Nanoscience and Risk, University of South Carolina, Columbia, USA.,University of Birmingham, Edgbaston, UK
| | | | | | - Sophie Rocks
- Institute for Resilient Futures, Cranfield University, Cranfield, UK
| | - Jason Unrine
- Department of Plant and Soil Sciences, University of Kentucky, Lexington, USA
| | - Junfeng Zhang
- Nicholas School of the Environment, Duke University, Durham, USA
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26
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de Pablo E, Fernández-García R, Ballesteros MP, Torrado JJ, Serrano DR. Nebulised antibiotherapy: conventional versus nanotechnology-based approaches, is targeting at a nano scale a difficult subject? ANNALS OF TRANSLATIONAL MEDICINE 2017; 5:448. [PMID: 29264365 DOI: 10.21037/atm.2017.09.17] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Nebulised antibiotics offer great advantages over intravenously administered antibiotics and other conventional antibiotic formulations. However, their use is not widely standardized in the current clinical practice. This is the consequence of large variability in the performance of nebulisers, patient compliance and a deficiency of robust preclinical and clinical data. Nebulised antibiotherapy may play a significant role in future pulmonary drug delivery treatments as it offers the potential to achieve both a high local drug concentration and a lower systemic toxicity. In this review, the physicochemical parameters required for optimal deposition to the lung in addition to the main characteristics of currently available formulations and nebuliser types are discussed. Particular attention will be focused on emerging nanotechnology based approaches which are revolutionizing inhaled therapies used to treat both infections and lung cancer. Promising carriers such as Trojan-Horse microparticles, liposomes, polymeric and lipid nanoparticulate systems have been investigated and proposed as viable options. In order to achieve site-specific targeting and to optimize the PK/PD balance critical nanoscale design parameters such as particle size, morphology, composition, rigidity and surface chemistry architecture must be controlled. Development of novel excipients to manufacture these nanomedicines and assessment of their toxicity is also a keystone and will be discussed in this review.
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Affiliation(s)
- Esther de Pablo
- Departamento de Farmacia y Tecnología Farmacéutica, Facultad de Farmacia, Universidad Complutense de Madrid, Plaza Ramón y Cajal s/n, Madrid, Spain
| | - Raquel Fernández-García
- Departamento de Farmacia y Tecnología Farmacéutica, Facultad de Farmacia, Universidad Complutense de Madrid, Plaza Ramón y Cajal s/n, Madrid, Spain
| | - María Paloma Ballesteros
- Departamento de Farmacia y Tecnología Farmacéutica, Facultad de Farmacia, Universidad Complutense de Madrid, Plaza Ramón y Cajal s/n, Madrid, Spain.,Instituto Universitario de Farmacia Industrial (IUFI), Facultad de Farmacia, Universidad Complutense de Madrid, Avenida Complutense, Madrid, Spain
| | - Juan José Torrado
- Departamento de Farmacia y Tecnología Farmacéutica, Facultad de Farmacia, Universidad Complutense de Madrid, Plaza Ramón y Cajal s/n, Madrid, Spain.,Instituto Universitario de Farmacia Industrial (IUFI), Facultad de Farmacia, Universidad Complutense de Madrid, Avenida Complutense, Madrid, Spain
| | - Dolores R Serrano
- Departamento de Farmacia y Tecnología Farmacéutica, Facultad de Farmacia, Universidad Complutense de Madrid, Plaza Ramón y Cajal s/n, Madrid, Spain.,Instituto Universitario de Farmacia Industrial (IUFI), Facultad de Farmacia, Universidad Complutense de Madrid, Avenida Complutense, Madrid, Spain
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Theodorou IG, Müller KH, Chen S, Goode AE, Yufit V, Ryan MP, Porter AE. Silver Nanowire Particle Reactivity with Human Monocyte-Derived Macrophage Cells: Intracellular Availability of Silver Governs Their Cytotoxicity. ACS Biomater Sci Eng 2017; 3:2336-2347. [PMID: 33445292 DOI: 10.1021/acsbiomaterials.7b00479] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Silver nanowires (AgNWs) are increasingly being used in the production of optoelectronic devices, with manufacturing processes posing a risk for occupational exposures via inhalation. Although some studies have explored the environmental effects of AgNWs, few data exist on human health effects. Alveolar macrophages are central in the clearance of inhaled fibers from the lungs, with frustrated phagocytosis often stated as a key determinant for the onset of inflammatory reactions. However, the mechanisms through which fully ingested AgNWs interact with, degrade, and transform within primary macrophages over time, and whether the reactivity of the AgNWs arises due to ionic or particulate effects, or both, are poorly understood. Here, a combination of elemental quantification, 3D tomography, analytical transmission electron microscopy (TEM), and confocal microscopy were employed to monitor the uptake, intracellular Ag+ availability, and processing of AgNWs of two different lengths (1 and 10 μm) inside human monocyte-derived macrophages (HMMs). Using AgNO3 and spherical silver nanoparticles (AgNPs) as a comparison, the amount of total bioavailable/intracellular Ag highly correlated to the cytotoxicity of AgNWs. The 10 μm AgNWs were completely internalized in HMMs, with numerous lysosomal vesicles observed in close vicinity to the AgNWs. Following cellular uptake, AgNWs dissolved and transformed intracellularly, with precipitation of AgCl as well as Ag2S. These transformation processes were likely due to AgNW degradation in the acidic environment of lysosomes, leading to the release of Ag+ ions that rapidly react with Cl- and SH- species of the cell microenvironment. Our data suggest that, in HMMs, not only frustrated phagocytosis but also the extent of intracellular uptake and dissolution of AgNWs dictates their cytotoxicity.
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Affiliation(s)
- Ioannis G Theodorou
- Department of Materials and London Centre for Nanotechnology, Imperial College London, Exhibition Road, London SW7 2AZ, United Kingdom
| | - Karin H Müller
- Cambridge Advanced Imaging Centre, Department of Physiology, Development and Neuroscience, University of Cambridge, Downing Street, Cambridge CB2 3DY, United Kingdom
| | - Shu Chen
- Department of Biological Sciences and Institute of Structural and Molecular Biology (ISMB), Birkbeck College, University of London, Malet Street, London, WC1E 7HX, United Kingdom
| | - Angela E Goode
- Department of Materials and London Centre for Nanotechnology, Imperial College London, Exhibition Road, London SW7 2AZ, United Kingdom
| | - Vladimir Yufit
- Department of Earth Science & Engineering, Imperial College London, Exhibition Road, London SW7 2AZ, United Kingdom
| | - Mary P Ryan
- Department of Materials and London Centre for Nanotechnology, Imperial College London, Exhibition Road, London SW7 2AZ, United Kingdom
| | - Alexandra E Porter
- Department of Materials and London Centre for Nanotechnology, Imperial College London, Exhibition Road, London SW7 2AZ, United Kingdom
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28
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Geng H, Poologasundarampillai G, Todd N, Devlin-Mullin A, Moore KL, Golrokhi Z, Gilchrist JB, Jones E, Potter RJ, Sutcliffe C, O'Brien M, Hukins DWL, Cartmell S, Mitchell CA, Lee PD. Biotransformation of Silver Released from Nanoparticle Coated Titanium Implants Revealed in Regenerating Bone. ACS APPLIED MATERIALS & INTERFACES 2017; 9:21169-21180. [PMID: 28581710 DOI: 10.1021/acsami.7b05150] [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] [Indexed: 05/22/2023]
Abstract
Antimicrobial silver nanoparticle coatings have attracted interest for reducing prosthetic joint infection. However, few studies report in vivo investigations of the biotransformation of silver nanoparticles within the regenerating tissue and its impact on bone formation. We present a longitudinal investigation of the osseointegration of silver nanoparticle-coated additive manufactured titanium implants in rat tibial defects. Correlative imaging at different time points using nanoscale secondary ion mass spectrometry, transmission electron microscopy (TEM), histomorphometry, and 3D X-ray microcomputed tomography provided quantitative insight from the nano- to macroscales. The quality and quantity of newly formed bone is comparable between the uncoated and silver coated implants. The newly formed bone demonstrates a trabecular morphology with bone being located at the implant surface, and at a distance, at two weeks. Nanoscale elemental mapping of the bone-implant interface showed that silver was present primarily in the osseous tissue and colocalized with sulfur. TEM revealed silver sulfide nanoparticles in the newly regenerated bone, presenting strong evidence that the previously in vitro observed biotransformation of silver to silver sulfide occurs in vivo.
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Affiliation(s)
- Hua Geng
- School of Materials, The University of Manchester , Oxford Road, Manchester M13 9PL, U.K
- Research Complex at Harwell , Harwell OX11 0FA, U.K
| | - Gowsihan Poologasundarampillai
- School of Materials, The University of Manchester , Oxford Road, Manchester M13 9PL, U.K
- Research Complex at Harwell , Harwell OX11 0FA, U.K
| | - Naomi Todd
- Centre for Molecular Biosciences (CMB), School of Biomedical Sciences, Ulster University , Coleraine BT52 1SA, Northern Ireland
| | - Aine Devlin-Mullin
- Centre for Molecular Biosciences (CMB), School of Biomedical Sciences, Ulster University , Coleraine BT52 1SA, Northern Ireland
| | - Katie L Moore
- School of Materials, The University of Manchester , Oxford Road, Manchester M13 9PL, U.K
| | - Zahra Golrokhi
- Centre for Materials and Structures, School of Engineering, The University of Liverpool , Liverpool L69 3GH, U.K
| | | | - Eric Jones
- Centre for Materials and Structures, School of Engineering, The University of Liverpool , Liverpool L69 3GH, U.K
| | - Richard J Potter
- Centre for Materials and Structures, School of Engineering, The University of Liverpool , Liverpool L69 3GH, U.K
| | - Chris Sutcliffe
- Centre for Materials and Structures, School of Engineering, The University of Liverpool , Liverpool L69 3GH, U.K
| | - Marie O'Brien
- School of Materials, The University of Manchester , Oxford Road, Manchester M13 9PL, U.K
| | - David W L Hukins
- Department of Mechanical Engineering, School of Engineering, University of Birmingham , Birmingham B15 2TT, U.K
| | - Sarah Cartmell
- School of Materials, The University of Manchester , Oxford Road, Manchester M13 9PL, U.K
| | - Christopher A Mitchell
- Centre for Molecular Biosciences (CMB), School of Biomedical Sciences, Ulster University , Coleraine BT52 1SA, Northern Ireland
| | - Peter D Lee
- School of Materials, The University of Manchester , Oxford Road, Manchester M13 9PL, U.K
- Research Complex at Harwell , Harwell OX11 0FA, U.K
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Chung KF, Seiffert J, Chen S, Theodorou IG, Goode AE, Leo BF, McGilvery CM, Hussain F, Wiegman C, Rossios C, Zhu J, Gong J, Tariq F, Yufit V, Monteith AJ, Hashimoto T, Skepper JN, Ryan MP, Zhang J, Tetley T, Porter AE. Inactivation, Clearance, and Functional Effects of Lung-Instilled Short and Long Silver Nanowires in Rats. ACS NANO 2017; 11:2652-2664. [PMID: 28221763 PMCID: PMC5371928 DOI: 10.1021/acsnano.6b07313] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2016] [Accepted: 02/21/2017] [Indexed: 05/25/2023]
Abstract
There is a potential for silver nanowires (AgNWs) to be inhaled, but there is little information on their health effects and their chemical transformation inside the lungs in vivo. We studied the effects of short (S-AgNWs; 1.5 μm) and long (L-AgNWs; 10 μm) nanowires instilled into the lungs of Sprague-Dawley rats. S- and L-AgNWs were phagocytosed and degraded by macrophages; there was no frustrated phagocytosis. Interestingly, both AgNWs were internalized in alveolar epithelial cells, with precipitation of Ag2S on their surface as secondary Ag2S nanoparticles. Quantitative serial block face three-dimensional scanning electron microscopy showed a small, but significant, reduction of NW lengths inside alveolar epithelial cells. AgNWs were also present in the lung subpleural space where L-AgNWs exposure resulted in more Ag+ve macrophages situated within the pleura and subpleural alveoli, compared with the S-AgNWs exposure. For both AgNWs, there was lung inflammation at day 1, disappearing by day 21, but in bronchoalveolar lavage fluid (BALF), L-AgNWs caused a delayed neutrophilic and macrophagic inflammation, while S-AgNWs caused only acute transient neutrophilia. Surfactant protein D (SP-D) levels in BALF increased after S- and L-AgNWs exposure at day 7. L-AgNWs induced MIP-1α and S-AgNWs induced IL-18 at day 1. Large airway bronchial responsiveness to acetylcholine increased following L-AgNWs, but not S-AgNWs, exposure. The attenuated response to AgNW instillation may be due to silver inactivation after precipitation of Ag2S with limited dissolution. Our findings have important consequences for the safety of silver-based technologies to human health.
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Affiliation(s)
- Kian Fan Chung
- Airways Disease, National Heart
and Lung Institute, Department of Materials and London
Centre for Nanotechnology, and Department of Earth Science, Imperial College, London SW7 2AZ, United Kingdom
| | - Joanna Seiffert
- Airways Disease, National Heart
and Lung Institute, Department of Materials and London
Centre for Nanotechnology, and Department of Earth Science, Imperial College, London SW7 2AZ, United Kingdom
| | - Shu Chen
- Airways Disease, National Heart
and Lung Institute, Department of Materials and London
Centre for Nanotechnology, and Department of Earth Science, Imperial College, London SW7 2AZ, United Kingdom
| | - Ioannis G. Theodorou
- Airways Disease, National Heart
and Lung Institute, Department of Materials and London
Centre for Nanotechnology, and Department of Earth Science, Imperial College, London SW7 2AZ, United Kingdom
| | - Angela Erin Goode
- Airways Disease, National Heart
and Lung Institute, Department of Materials and London
Centre for Nanotechnology, and Department of Earth Science, Imperial College, London SW7 2AZ, United Kingdom
| | - Bey Fen Leo
- Airways Disease, National Heart
and Lung Institute, Department of Materials and London
Centre for Nanotechnology, and Department of Earth Science, Imperial College, London SW7 2AZ, United Kingdom
- Nanotechnology
and Catalysis Research Centre (NANOCAT), University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Catriona M. McGilvery
- Airways Disease, National Heart
and Lung Institute, Department of Materials and London
Centre for Nanotechnology, and Department of Earth Science, Imperial College, London SW7 2AZ, United Kingdom
| | - Farhana Hussain
- Airways Disease, National Heart
and Lung Institute, Department of Materials and London
Centre for Nanotechnology, and Department of Earth Science, Imperial College, London SW7 2AZ, United Kingdom
| | - Coen Wiegman
- Airways Disease, National Heart
and Lung Institute, Department of Materials and London
Centre for Nanotechnology, and Department of Earth Science, Imperial College, London SW7 2AZ, United Kingdom
| | - Christos Rossios
- Airways Disease, National Heart
and Lung Institute, Department of Materials and London
Centre for Nanotechnology, and Department of Earth Science, Imperial College, London SW7 2AZ, United Kingdom
| | - Jie Zhu
- Airways Disease, National Heart
and Lung Institute, Department of Materials and London
Centre for Nanotechnology, and Department of Earth Science, Imperial College, London SW7 2AZ, United Kingdom
| | - Jicheng Gong
- Nicholas
School of Environment and Duke Global Health Institute, Duke University, Durham, North Carolina 27708, United States
| | - Farid Tariq
- Airways Disease, National Heart
and Lung Institute, Department of Materials and London
Centre for Nanotechnology, and Department of Earth Science, Imperial College, London SW7 2AZ, United Kingdom
| | - Vladimir Yufit
- Airways Disease, National Heart
and Lung Institute, Department of Materials and London
Centre for Nanotechnology, and Department of Earth Science, Imperial College, London SW7 2AZ, United Kingdom
| | - Alexander J. Monteith
- Department
of Biological Sciences, Oxford Brookes University, Oxford OX3 OBP, United Kingdom
| | - Teruo Hashimoto
- The
School of Materials, The University of Manchester, Oxford Road, Manchester M13 9PL, United
Kingdom
| | - Jeremy N. Skepper
- Cambridge
Advanced Imaging Centre, Department of Anatomy, University of Cambridge, Tennis Court Road, Cambridge CB2 3DY United Kingdom
| | - Mary P. Ryan
- Airways Disease, National Heart
and Lung Institute, Department of Materials and London
Centre for Nanotechnology, and Department of Earth Science, Imperial College, London SW7 2AZ, United Kingdom
| | - Junfeng Zhang
- Nicholas
School of Environment and Duke Global Health Institute, Duke University, Durham, North Carolina 27708, United States
| | - Teresa
D. Tetley
- Airways Disease, National Heart
and Lung Institute, Department of Materials and London
Centre for Nanotechnology, and Department of Earth Science, Imperial College, London SW7 2AZ, United Kingdom
| | - Alexandra E. Porter
- Airways Disease, National Heart
and Lung Institute, Department of Materials and London
Centre for Nanotechnology, and Department of Earth Science, Imperial College, London SW7 2AZ, United Kingdom
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30
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Gonzalez-Carter DA, Leo BF, Ruenraroengsak P, Chen S, Goode AE, Theodorou IG, Chung KF, Carzaniga R, Shaffer MSP, Dexter DT, Ryan MP, Porter AE. Silver nanoparticles reduce brain inflammation and related neurotoxicity through induction of H 2S-synthesizing enzymes. Sci Rep 2017; 7:42871. [PMID: 28251989 PMCID: PMC5333087 DOI: 10.1038/srep42871] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 01/12/2017] [Indexed: 02/07/2023] Open
Abstract
Silver nanoparticles (AgNP) are known to penetrate into the brain and cause neuronal death. However, there is a paucity in studies examining the effect of AgNP on the resident immune cells of the brain, microglia. Given microglia are implicated in neurodegenerative disorders such as Parkinson's disease (PD), it is important to examine how AgNPs affect microglial inflammation to fully assess AgNP neurotoxicity. In addition, understanding AgNP processing by microglia will allow better prediction of their long term bioreactivity. In the present study, the in vitro uptake and intracellular transformation of citrate-capped AgNPs by microglia, as well as their effects on microglial inflammation and related neurotoxicity were examined. Analytical microscopy demonstrated internalization and dissolution of AgNPs within microglia and formation of non-reactive silver sulphide (Ag2S) on the surface of AgNPs. Furthermore, AgNP-treatment up-regulated microglial expression of the hydrogen sulphide (H2S)-synthesizing enzyme cystathionine-γ-lyase (CSE). In addition, AgNPs showed significant anti-inflammatory effects, reducing lipopolysaccharide (LPS)-stimulated ROS, nitric oxide and TNFα production, which translated into reduced microglial toxicity towards dopaminergic neurons. Hence, the present results indicate that intracellular Ag2S formation, resulting from CSE-mediated H2S production in microglia, sequesters Ag+ ions released from AgNPs, significantly limiting their toxicity, concomitantly reducing microglial inflammation and related neurotoxicity.
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Affiliation(s)
- Daniel A. Gonzalez-Carter
- Department of Materials and London Centre for Nanotechnology, Imperial College London, Exhibition Road, London, SW7 2AZ, UK
- Parkinson’s Disease Research Unit, Centre for Neuroinflammation and Neurodegeneration, Division of Brain Sciences, Imperial College London, Hammersmith Hospital Campus, London, W12 0NN, UK
| | - Bey Fen Leo
- Department of Materials and London Centre for Nanotechnology, Imperial College London, Exhibition Road, London, SW7 2AZ, UK
- Central Unit for Advanced Research Imaging, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Pakatip Ruenraroengsak
- Department of Materials and London Centre for Nanotechnology, Imperial College London, Exhibition Road, London, SW7 2AZ, UK
- National Heart and Lung Institute, Imperial College London, Guy Scadding Building, Cale Street, London, SW3 6LY, UK
| | - Shu Chen
- Department of Materials and London Centre for Nanotechnology, Imperial College London, Exhibition Road, London, SW7 2AZ, UK
| | - Angela E. Goode
- Department of Materials and London Centre for Nanotechnology, Imperial College London, Exhibition Road, London, SW7 2AZ, UK
| | - Ioannis G. Theodorou
- Department of Materials and London Centre for Nanotechnology, Imperial College London, Exhibition Road, London, SW7 2AZ, UK
| | - Kian Fan Chung
- National Heart and Lung Institute, Imperial College London, Guy Scadding Building, Cale Street, London, SW3 6LY, UK
| | - Raffaella Carzaniga
- Electron Microscopy Science Technology Platform, The Francis Crick Institute, Lincoln’s Inn Fields Laboratory, 44 Lincoln’s Inn Fields, London, WC2A 3LY, UK
| | - Milo S. P. Shaffer
- Department of Materials and London Centre for Nanotechnology, Imperial College London, Exhibition Road, London, SW7 2AZ, UK
- Department of Chemistry and London Centre for Nanotechnology, Imperial College London, Exhibition Road, London, SW7 2AZ, UK
| | - David T. Dexter
- Parkinson’s Disease Research Unit, Centre for Neuroinflammation and Neurodegeneration, Division of Brain Sciences, Imperial College London, Hammersmith Hospital Campus, London, W12 0NN, UK
| | - Mary P. Ryan
- Department of Materials and London Centre for Nanotechnology, Imperial College London, Exhibition Road, London, SW7 2AZ, UK
| | - Alexandra E. Porter
- Department of Materials and London Centre for Nanotechnology, Imperial College London, Exhibition Road, London, SW7 2AZ, UK
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31
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Muhammad F, Nguyen TDT, Raza A, Akhtar B, Aryal S. A review on nanoparticle-based technologies for biodetoxification. Drug Chem Toxicol 2017; 40:489-497. [DOI: 10.1080/01480545.2016.1277736] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Faqir Muhammad
- Institute of Pharmacy, Physiology and Pharmacology, University of Agriculture, Faisalabad, Pakistan, and
| | - Tuyen Duong Thanh Nguyen
- Nanotechnology Innovation Center of Kansas State, Department of Chemistry, Kansas State University, Manhattan, KS, USA
| | - Ahmad Raza
- Institute of Pharmacy, Physiology and Pharmacology, University of Agriculture, Faisalabad, Pakistan, and
| | - Bushra Akhtar
- Institute of Pharmacy, Physiology and Pharmacology, University of Agriculture, Faisalabad, Pakistan, and
| | - Santosh Aryal
- Nanotechnology Innovation Center of Kansas State, Department of Chemistry, Kansas State University, Manhattan, KS, USA
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32
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Zhang Y, Xia J, Liu Y, Qiang L, Zhu L. Impacts of Morphology, Natural Organic Matter, Cations, and Ionic Strength on Sulfidation of Silver Nanowires. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:13283-13290. [PMID: 27993058 DOI: 10.1021/acs.est.6b03034] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Silver nanowires (AgNWs) are being widely utilized in an increasing number of consumer products, which could release silver to aquatic environments during the use or washing process, and have received growing concerns on their potential risks to bio-organisms and humans. The present study demonstrated that AgNWs mainly experienced direct oxysulfidation by reacting with dissolved sulfide species (initial S2- concentration at 1.6 mg/L) to produce silver sulfide nanostructures under environmentally relevant conditions. Granular Ag2S nanoparticles were formed on the surface of the nanowires. The sulfidation rate constant (kAg) of AgNWs was compared with those of silver nanoparticles (AgNPs) at different particle sizes. It was found that the kAg positively correlated with the specific surface areas of the silver nanomaterials. Natural organic matter (NOM) suppressed the sulfidation of AgNWs to different extents depending on its concentration. Divalent cations (Mg2+ and Ca2+ ions) substantially accelerated the sulfidation rates of AgNWs compared to monovalent cations (Na+ and K+ ions). At the same ionic strengths, Ca2+ ions displayed the highest promoting effect among the four metallic ions.
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Affiliation(s)
- Yinqing Zhang
- 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 300350, P. R. China
| | - Junchao Xia
- 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 300350, P. R. China
| | - Yongliang Liu
- 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 300350, P. R. China
| | - Liwen Qiang
- 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 300350, P. R. China
| | - Lingyan Zhu
- 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 300350, P. R. China
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33
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Evidence for the dissolution of molybdenum during tribocorrosion of CoCrMo hip implants in the presence of serum protein. Acta Biomater 2016; 45:410-418. [PMID: 27581397 DOI: 10.1016/j.actbio.2016.08.051] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 08/19/2016] [Accepted: 08/26/2016] [Indexed: 11/21/2022]
Abstract
We have characterized CoCrMo, Metal-on-Metal (MoM) implant, wear debris particles and their dissolution following cycling in a hip simulator, and have related the results to the tribocorrosion of synthetic wear debris produced by milling CoCrMo powders in solutions representative of environments in the human body. Importantly, we have employed a modified ICP-MS sample preparation procedure to measure the release of ions from CoCrMo alloys during wear simulation in different media; this involved use of nano-porous ultrafilters which allowed complete separation of particles from free ions and complexes in solution. As a result, we present a new perspective on the release of metal ions and formation of metal complexes from CoCrMo implants. The new methodology enables the mass balance of ions relative to complexes and particles during tribocorrosion in hip simulators to be determined. A much higher release of molybdenum ions relative to cobalt and chromium has been measured. The molybdenum dissolution was enhanced by the presence of bovine serum albumin (BSA), possibly due to the formation of metal-protein complexes. Overall, we believe that the results could have significant implications for the analysis and interpretation of metal ion levels in fluids extracted from hip arthroplasty patients; we suggest that metal levels, including molybdenum, be analysed in these fluids using the protocol described here. STATEMENT OF SIGNIFICANCE We have developed an important new protocol for the analysis of metal ion levels in fluids extracted from hip implant patients and also hip simulators. Using this procedure, we present a new perspective on the release of metal ions from CoCrMo alloy implants, revealing significantly lower levels of metal ion release during tribocorrosion in hip simulators than previously thought, combined with the release of much higher percentages of molybdenum ions relative to cobalt and chromium. This work is of relevance, both from the perspective of the fundamental science and study of metal-protein interactions, enabling understanding of the ongoing problem associated with the biotribocorrosion and the link to inflammation associated with Metal-on-Metal (MoM) hip implants made from CoCrMo alloys.
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34
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Dynamic protein coronas revealed as a modulator of silver nanoparticle sulphidation in vitro. Nat Commun 2016; 7:11770. [PMID: 27278102 PMCID: PMC4906166 DOI: 10.1038/ncomms11770] [Citation(s) in RCA: 102] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Accepted: 04/28/2016] [Indexed: 02/08/2023] Open
Abstract
Proteins adsorbing at nanoparticles have been proposed as critical toxicity mediators and are included in ongoing efforts to develop predictive tools for safety assessment. Strongly attached proteins can be isolated, identified and correlated to changes in nanoparticle state, cellular association or toxicity. Weakly attached, rapidly exchanging proteins are also present at nanoparticles, but are difficult to isolate and have hardly been examined. Here we study rapidly exchanging proteins and show for the first time that they have a strong modulatory effect on the biotransformation of silver nanoparticles. Released silver ions, known for their role in particle toxicity, are found to be trapped as silver sulphide nanocrystals within the protein corona at silver nanoparticles in serum-containing cell culture media. The strongly attached corona acts as a site for sulphidation, while the weakly attached proteins reduce nanocrystal formation in a serum-concentration-dependent manner. Sulphidation results in decreased toxicity of Ag NPs. The biomolecule layer adsorbed at the nanoparticle surface and defined as protein corona affects the nanoparticle biophysical properties and functions. Here, the authors suggest that rapidly-exchanging proteins on the outermost layer of the corona modulate sulphidation of silver nanoparticles in vitro.
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35
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Wang S, Lv J, Ma J, Zhang S. Cellular internalization and intracellular biotransformation of silver nanoparticles in Chlamydomonas reinhardtii. Nanotoxicology 2016; 10:1129-35. [DOI: 10.1080/17435390.2016.1179809] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Songshan Wang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, P.R. China and
| | - Jitao Lv
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, P.R. China and
| | - Jingyuan Ma
- Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, P.R. China
| | - Shuzhen Zhang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, P.R. China and
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36
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Chen S, Goode AE, Skepper JN, Thorley AJ, Seiffert JM, Chung KF, Tetley TD, Shaffer MSP, Ryan MP, Porter AE. Avoiding artefacts during electron microscopy of silver nanomaterials exposed to biological environments. J Microsc 2016; 261:157-66. [PMID: 25606708 PMCID: PMC4510036 DOI: 10.1111/jmi.12215] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Accepted: 12/11/2014] [Indexed: 02/06/2023]
Abstract
Electron microscopy has been applied widely to study the interaction of nanomaterials with proteins, cells and tissues at nanometre scale. Biological material is most commonly embedded in thermoset resins to make it compatible with the high vacuum in the electron microscope. Room temperature sample preparation protocols developed over decades provide contrast by staining cell organelles, and aim to preserve the native cell structure. However, the effect of these complex protocols on the nanomaterials in the system is seldom considered. Any artefacts generated during sample preparation may ultimately interfere with the accurate prediction of the stability and reactivity of the nanomaterials. As a case study, we review steps in the room temperature preparation of cells exposed to silver nanomaterials (AgNMs) for transmission electron microscopy imaging and analysis. In particular, embedding and staining protocols, which can alter the physicochemical properties of AgNMs and introduce artefacts thereby leading to a misinterpretation of silver bioreactivity, are scrutinized. Recommendations are given for the application of cryogenic sample preparation protocols, which simultaneously fix both particles and diffusible ions. By being aware of the advantages and limitations of different sample preparation methods, compromises or selection of different correlative techniques can be made to draw more accurate conclusions about the data.
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Affiliation(s)
- S Chen
- Department of Materials and London Centre for Nanotechnology, Imperial College London, Exhibition Road, London, SW7 2AZ, U.K
| | - A E Goode
- Department of Materials and London Centre for Nanotechnology, Imperial College London, Exhibition Road, London, SW7 2AZ, U.K
| | - J N Skepper
- Multi-Imaging Centre, Department of Physiology, Development and Neuroscience, University of Cambridge, Downing Street, Cambridge, CB2 3DY, U.K
| | - A J Thorley
- National Heart and Lung Institute, Imperial College London, SW3 6LY, U.K
| | - J M Seiffert
- National Heart and Lung Institute, Imperial College London, SW3 6LY, U.K
| | - K F Chung
- National Heart and Lung Institute, Imperial College London, SW3 6LY, U.K
| | - T D Tetley
- National Heart and Lung Institute, Imperial College London, SW3 6LY, U.K
| | - M S P Shaffer
- Department of Chemistry and London Centre for Nanotechnology, Imperial College London, Exhibition Road, London, SW7 2AZ, U.K
| | - M P Ryan
- Department of Materials and London Centre for Nanotechnology, Imperial College London, Exhibition Road, London, SW7 2AZ, U.K
| | - A E Porter
- Department of Materials and London Centre for Nanotechnology, Imperial College London, Exhibition Road, London, SW7 2AZ, U.K
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37
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Munusamy P, Wang C, Engelhard MH, Baer DR, Smith JN, Liu C, Kodali V, Thrall BD, Chen S, Porter AE, Ryan MP. Comparison of 20 nm silver nanoparticles synthesized with and without a gold core: Structure, dissolution in cell culture media, and biological impact on macrophages. Biointerphases 2015; 10:031003. [PMID: 26178265 PMCID: PMC4506304 DOI: 10.1116/1.4926547] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Revised: 06/24/2015] [Accepted: 06/30/2015] [Indexed: 01/15/2023] Open
Abstract
Widespread use of silver nanoparticles raises questions of environmental and biological impact. Many synthesis approaches are used to produce pure silver and silver-shell gold-core particles optimized for specific applications. Since both nanoparticles and silver dissolved from the particles may impact the biological response, it is important to understand the physicochemical characteristics along with the biological impact of nanoparticles produced by different processes. The authors have examined the structure, dissolution, and impact of particle exposure to macrophage cells of two 20 nm silver particles synthesized in different ways, which have different internal structures. The structures were examined by electron microscopy and dissolution measured in Rosewell Park Memorial Institute media with 10% fetal bovine serum. Cytotoxicity and oxidative stress were used to measure biological impact on RAW 264.7 macrophage cells. The particles were polycrystalline, but 20 nm particles grown on gold seed particles had smaller crystallite size with many high-energy grain boundaries and defects, and an apparent higher solubility than 20 nm pure silver particles. Greater oxidative stress and cytotoxicity were observed for 20 nm particles containing the Au core than for 20 nm pure silver particles. A simple dissolution model described the time variation of particle size and dissolved silver for particle loadings larger than 9 μg/ml for the 24-h period characteristic of many in-vitro studies.
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Affiliation(s)
- Prabhakaran Munusamy
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Box 999, Richland, Washington 99354
| | - Chongmin Wang
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Box 999, Richland, Washington 99354
| | - Mark H Engelhard
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Box 999, Richland, Washington 99354
| | - Donald R Baer
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Box 999, Richland, Washington 99354
| | - Jordan N Smith
- Fundamental and Computational Sciences Directorate, Pacific Northwest National Laboratory, Box 999, Richland, Washington 99354
| | - Chongxuan Liu
- Fundamental and Computational Sciences Directorate, Pacific Northwest National Laboratory, Box 999, Richland, Washington 99354
| | - Vamsi Kodali
- Fundamental and Computational Sciences Directorate, Pacific Northwest National Laboratory, Box 999, Richland, Washington 99354
| | - Brian D Thrall
- Fundamental and Computational Sciences Directorate, Pacific Northwest National Laboratory, Box 999, Richland, Washington 99354
| | - Shu Chen
- Department of Materials and London Center for Nanotechnology, Imperial College London, Exhibition Road, SW72AZ London, United Kingdom
| | - Alexandra E Porter
- Department of Materials and London Center for Nanotechnology, Imperial College London, Exhibition Road, SW72AZ London, United Kingdom
| | - Mary P Ryan
- Department of Materials and London Center for Nanotechnology, Imperial College London, Exhibition Road, SW72AZ London, United Kingdom
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38
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Mukherjee D, Porter A, Ryan M, Schwander S, Chung KF, Tetley T, Zhang J, Georgopoulos P. Modeling In Vivo Interactions of Engineered Nanoparticles in the Pulmonary Alveolar Lining Fluid. NANOMATERIALS 2015; 5:1223-1249. [PMID: 26240755 PMCID: PMC4521411 DOI: 10.3390/nano5031223] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Increasing use of engineered nanomaterials (ENMs) in consumer products may result in widespread human inhalation exposures. Due to their high surface area per unit mass, inhaled ENMs interact with multiple components of the pulmonary system, and these interactions affect their ultimate fate in the body. Modeling of ENM transport and clearance in vivo has traditionally treated tissues as well-mixed compartments, without consideration of nanoscale interaction and transformation mechanisms. ENM agglomeration, dissolution and transport, along with adsorption of biomolecules, such as surfactant lipids and proteins, cause irreversible changes to ENM morphology and surface properties. The model presented in this article quantifies ENM transformation and transport in the alveolar air to liquid interface and estimates eventual alveolar cell dosimetry. This formulation brings together established concepts from colloidal and surface science, physics, and biochemistry to provide a stochastic framework capable of capturing essential in vivo processes in the pulmonary alveolar lining layer. The model has been implemented for in vitro solutions with parameters estimated from relevant published in vitro measurements and has been extended here to in vivo systems simulating human inhalation exposures. Applications are presented for four different ENMs, and relevant kinetic rates are estimated, demonstrating an approach for improving human in vivo pulmonary dosimetry.
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Affiliation(s)
- Dwaipayan Mukherjee
- Environmental and Occupational Health Sciences Institute (EOHSI), Rutgers University, 170 Frelinghuysen Road, Piscataway, NJ 08854, USA; E-Mail:
- Department of Environmental and Occupational Medicine, Robert Wood Johnson Medical School, Rutgers University, 170 Frelinghuysen Road, Piscataway, NJ 08854, USA
- Department of Chemical and Biochemical Engineering, Rutgers University, 98 Brett Road, Piscataway, NJ 08854, USA
| | - Alexandra Porter
- Department of Materials and London Centre of Nanotechnology, Imperial College London, Exhibition Road, London SW7 2AZ, UK; E-Mails: (A.P.); (M.R.)
| | - Mary Ryan
- Department of Materials and London Centre of Nanotechnology, Imperial College London, Exhibition Road, London SW7 2AZ, UK; E-Mails: (A.P.); (M.R.)
| | - Stephan Schwander
- Department of Environmental and Occupational Health, School of Public Health, Rutgers University, 683 Hoes Lane West, Piscataway, NJ 08854, USA; E-Mail:
| | - Kian Fan Chung
- National Heart and Lung Institute, Imperial College London, Dovehouse Street, London SW3 6LY, UK; E-Mails: (K.F.C.); (T.T.)
| | - Teresa Tetley
- National Heart and Lung Institute, Imperial College London, Dovehouse Street, London SW3 6LY, UK; E-Mails: (K.F.C.); (T.T.)
| | - Junfeng Zhang
- Nicholas School of the Environment and Duke Global Health Institute, Duke University, 9 Circuit Drive, Durham, NC 27708, USA; E-Mail:
| | - Panos Georgopoulos
- Environmental and Occupational Health Sciences Institute (EOHSI), Rutgers University, 170 Frelinghuysen Road, Piscataway, NJ 08854, USA; E-Mail:
- Department of Environmental and Occupational Medicine, Robert Wood Johnson Medical School, Rutgers University, 170 Frelinghuysen Road, Piscataway, NJ 08854, USA
- Department of Chemical and Biochemical Engineering, Rutgers University, 98 Brett Road, Piscataway, NJ 08854, USA
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +1-848-445-0159
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Theodorou IG, Botelho D, Schwander S, Zhang J(J, Chung KF, Tetley TD, Shaffer MSP, Gow A, Ryan MP, Porter AE. Static and Dynamic Microscopy of the Chemical Stability and Aggregation State of Silver Nanowires in Components of Murine Pulmonary Surfactant. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2015; 49:8048-56. [PMID: 26061974 PMCID: PMC4780758 DOI: 10.1021/acs.est.5b01214] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
The increase of production volumes of silver nanowires (AgNWs) and of consumer products incorporating them may lead to increased health risks from occupational and public exposures. There is currently limited information about the putative toxicity of AgNWs upon inhalation and incomplete understanding of the properties that control their bioreactivity. The lung lining fluid (LLF), which contains phospholipids and surfactant proteins, represents a first contact site with the respiratory system. In this work, the impact of dipalmitoylphosphatidylcholine (DPPC), Curosurf, and murine LLF on the stability of AgNWs was examined. Both the phospholipid and protein components of the LLF modified the dissolution kinetics of AgNWs, due to the formation of a lipid corona or aggregation of the AgNWs. Moreover, the hydrophilic proteins, but neither the hydrophobic surfactant proteins nor the phospholipids, induced agglomeration of the AgNWs. Finally, the generation of a secondary population of nanosilver was observed and attributed to the reduction of Ag(+) ions by the surface capping of the AgNWs. Our findings highlight that combinations of spatially resolved dynamic and static techniques are required to develop a holistic understanding of which parameters govern AgNW behavior at the point of exposure and to accurately predict their risks on human health and the environment.
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Affiliation(s)
- Ioannis G. Theodorou
- Department of Materials and London Centre for Nanotechnology, Imperial College London, Exhibition Road, London SW7 2AZ, United Kingdom
| | - Danielle Botelho
- Department of Pharmacology and Toxicology, Rutgers University, Piscataway, New Jersey 08854, United States
| | - Stephan Schwander
- Rutgers School of Public Health, Department of Environmental and Occupational Health, Piscataway, New Jersey 08854, United States
| | - Junfeng (Jim) Zhang
- Nicholas School of the Environment and Duke Global Health Institute, Duke University, Durham, NC 27708, United States
| | - Kian Fan Chung
- National Heart and Lung Institute, Imperial College London, London SW3 6LY, United Kingdom
| | - Teresa D. Tetley
- National Heart and Lung Institute, Imperial College London, London SW3 6LY, United Kingdom
| | - Milo S. P. Shaffer
- Department of Chemistry and London Centre for Nanotechnology, Imperial College London, Exhibition Road, London SW7 2AZ, United Kingdom
| | - Andrew Gow
- Department of Pharmacology and Toxicology, Rutgers University, Piscataway, New Jersey 08854, United States
| | - Mary P. Ryan
- Department of Materials and London Centre for Nanotechnology, Imperial College London, Exhibition Road, London SW7 2AZ, United Kingdom
| | - Alexandra E. Porter
- Department of Materials and London Centre for Nanotechnology, Imperial College London, Exhibition Road, London SW7 2AZ, United Kingdom
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40
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Sweeney S, Theodorou IG, Zambianchi M, Chen S, Gow A, Schwander S, Zhang JJ, Chung KF, Shaffer MSP, Ryan MP, Porter AE, Tetley TD. Silver nanowire interactions with primary human alveolar type-II epithelial cell secretions: contrasting bioreactivity with human alveolar type-I and type-II epithelial cells. NANOSCALE 2015; 7:10398-409. [PMID: 25996248 PMCID: PMC4765325 DOI: 10.1039/c5nr01496d] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Inhaled nanoparticles have a high deposition rate in the alveolar units of the deep lung. The alveolar epithelium is composed of type-I and type-II epithelial cells (ATI and ATII respectively) and is bathed in pulmonary surfactant. The effect of native human ATII cell secretions on nanoparticle toxicity is not known. We investigated the cellular uptake and toxicity of silver nanowires (AgNWs; 70 nm diameter, 1.5 μm length) with human ATI-like cells (TT1), in the absence or presence of Curosurf® (a natural porcine pulmonary surfactant with a low amount of protein) or harvested primary human ATII cell secretions (HAS; containing both the complete lipid as well as the full protein complement of human pulmonary surfactant i.e. SP-A, SP-B, SP-C and SP-D). We hypothesised that Curosurf® or HAS would confer improved protection for TT1 cells, limiting the toxicity of AgNWs. In agreement with our hypothesis, HAS reduced the inflammatory and reactive oxygen species (ROS)-generating potential of AgNWs with exposed TT1 cells. For example, IL-8 release and ROS generation was reduced by 38% and 29%, respectively, resulting in similar levels to that of the non-treated controls. However in contrast to our hypothesis, Curosurf® had no effect. We found a significant reduction in AgNW uptake by TT1 cells in the presence of HAS but not Curosurf. Furthermore, we show that the SP-A and SP-D are likely to be involved in this process as they were found to be specifically bound to the AgNWs. While ATI cells appear to be protected by HAS, evidence suggested that ATII cells, despite no uptake, were vulnerable to AgNW exposure (indicated by increased IL-8 release and ROS generation and decreased intracellular SP-A levels one day post-exposure). This study provides unique findings that may be important for the study of lung epithelial-endothelial translocation of nanoparticles in general and associated toxicity within the alveolar unit.
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Affiliation(s)
- Sinbad Sweeney
- Lung Cell Biology, Section of Pharmacology and Toxicology, Airways Disease, National Heart & Lung Institute, Imperial College London, London, UK.
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41
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Hashimoto M, Sasaki JI, Imazato S. Investigation of the cytotoxicity of aluminum oxide nanoparticles and nanowires and their localization in L929 fibroblasts and RAW264 macrophages. J Biomed Mater Res B Appl Biomater 2015; 104:241-52. [DOI: 10.1002/jbm.b.33377] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Revised: 12/09/2014] [Accepted: 01/09/2015] [Indexed: 01/23/2023]
Affiliation(s)
- Masanori Hashimoto
- Department of Biomaterials Science; Osaka University Graduate School of Dentistry; Suita Osaka 565-0871 Japan
| | - Jun-Ichi Sasaki
- Department of Biomaterials Science; Osaka University Graduate School of Dentistry; Suita Osaka 565-0871 Japan
| | - Satoshi Imazato
- Department of Biomaterials Science; Osaka University Graduate School of Dentistry; Suita Osaka 565-0871 Japan
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42
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Baalousha M, Arkill KP, Romer I, Palmer RE, Lead JR. Transformations of citrate and Tween coated silver nanoparticles reacted with Na₂S. THE SCIENCE OF THE TOTAL ENVIRONMENT 2015; 502:344-53. [PMID: 25262296 DOI: 10.1016/j.scitotenv.2014.09.035] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Revised: 09/11/2014] [Accepted: 09/11/2014] [Indexed: 05/23/2023]
Abstract
Silver nanoparticles (Ag NPs) are susceptible to transformations in environmental and biological media such as aggregation, oxidation, dissolution, chlorination, sulfidation, formation/replacement of surface coatings following interaction with natural organic matter (NOM). This paper investigates the impact of surface coating and Suwannee River fulvic acid (SRFA) on the transformations and behavior of Ag NPs (citrate coated and Tween coated; cit-Ag NPs and Tween-Ag NPs, respectively), following reaction with different concentrations of Na2S solution (as a source of sulfide species, H2S and HS(-)). These transformations and the dominant mechanisms of transformations were investigated using UV-vis and scanning transmission electron microscopy coupled with electron energy loss spectroscopy. Here, we have shown that Ag NP surface coating impacts their dissolution following dilution in ultrahigh purity water, with higher extent of dissolution of Tween-Ag NPs compared with cit-Ag NPs. Tween-Ag NPs are susceptible to dissolution following their sulfidation at low S/Ag molar ratio. Suwannee River fulvic acid (SRFA) slows down the dissolution of Tween-Ag NPs at low sulfide concentrations and reduces the aggregation of cit-Ag NP in the presence of sodium sulfide. Sulfidation appears to occur by direct interaction of sulfide species with Ag NPs rather than by indirect reaction of sulfide with dissolved Ag species subsequent to dissolution. Furthermore, the sulfidation process results in the formation of partially sulfidized Ag NPs containing unreacted (metallic) subgrains at the edge of the NPs for Tween-Ag NPs in the presence of high sulfide concentration (2000nM Na2S), which occurred to less extent at lower Na2S concentration for Tween-Ag NPs and at all concentrations of Na2S for cit-Ag NPs. Thus, sulfidized Ag NPs may preserve some of the properties of the Ag NPs such as their potential to shed Ag(+) ions and their toxic potential of Ag NPs.
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Affiliation(s)
- M Baalousha
- Center for Environmental Nanoscience and Risk, Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, Columbia, SC 29028, USA
| | - K P Arkill
- School of Biochemistry, University of Bristol, Bristol BS8 1TD, United Kingdom
| | - I Romer
- School of Geography, Earth and Environmental Sciences, University of Birmingham, Birmingham B15 2TT, United Kingdom
| | - R E Palmer
- School of Physics and Astronomy, University of Birmingham, Birmingham B15 2TT, United Kingdom
| | - J R Lead
- Center for Environmental Nanoscience and Risk, Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, Columbia, SC 29028, USA; School of Geography, Earth and Environmental Sciences, University of Birmingham, Birmingham B15 2TT, United Kingdom
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43
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Theodorou IG, Ryan MP, Tetley TD, Porter AE. Inhalation of silver nanomaterials--seeing the risks. Int J Mol Sci 2014; 15:23936-74. [PMID: 25535082 PMCID: PMC4284799 DOI: 10.3390/ijms151223936] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Revised: 11/26/2014] [Accepted: 12/15/2014] [Indexed: 12/14/2022] Open
Abstract
Demand for silver engineered nanomaterials (ENMs) is increasing rapidly in optoelectronic and in health and medical applications due to their antibacterial, thermal, electrical conductive, and other properties. The continued commercial up-scaling of ENM production and application needs to be accompanied by an understanding of the occupational health, public safety and environmental implications of these materials. There have been numerous in vitro studies and some in vivo studies of ENM toxicity but their results are frequently inconclusive. Some of the variability between studies has arisen due to a lack of consistency between experimental models, since small differences between test materials can markedly alter their behaviour. In addition, the propensity for the physicochemistry of silver ENMs to alter, sometimes quite radically, depending on the environment they encounter, can profoundly alter their bioreactivity. Consequently, it is important to accurately characterise the materials before use, at the point of exposure and at the nanomaterial-tissue, or "nanobio", interface, to be able to appreciate their environmental impact. This paper reviews current literature on the pulmonary effects of silver nanomaterials. We focus our review on describing whether, and by which mechanisms, the chemistry and structure of these materials can be linked to their bioreactivity in the respiratory system. In particular, the mechanisms by which the physicochemical properties (e.g., aggregation state, morphology and chemistry) of silver nanomaterials change in various biological milieu (i.e., relevant proteins, lipids and other molecules, and biofluids, such as lung surfactant) and affect subsequent interactions with and within cells will be discussed, in the context not only of what is measured but also of what can be visualized.
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Affiliation(s)
- Ioannis G Theodorou
- Department of Materials and London Centre for Nanotechnology, Imperial College London, Exhibition Road, London SW7 2AZ, UK.
| | - Mary P Ryan
- Department of Materials and London Centre for Nanotechnology, Imperial College London, Exhibition Road, London SW7 2AZ, UK.
| | - Teresa D Tetley
- National Heart and Lung Institute, Imperial College London, Cale Street, London SW3 6LY, UK.
| | - Alexandra E Porter
- Department of Materials and London Centre for Nanotechnology, Imperial College London, Exhibition Road, London SW7 2AZ, UK.
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Modeling in vitro cellular responses to silver nanoparticles. J Toxicol 2014; 2014:852890. [PMID: 25541583 PMCID: PMC4206931 DOI: 10.1155/2014/852890] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Revised: 09/15/2014] [Accepted: 09/16/2014] [Indexed: 01/22/2023] Open
Abstract
Engineered nanoparticles (NPs) have been widely demonstrated to induce toxic effects to various cell types. In vitro cell exposure systems have high potential for reliable, high throughput screening of nanoparticle toxicity, allowing focusing on particular pathways while excluding unwanted effects due to other cells or tissue dosimetry. The work presented here involves a detailed biologically based computational model of cellular interactions with NPs; it utilizes measurements performed in human cell culture systems in vitro, to develop a mechanistic mathematical model that can support analysis and prediction of in vivo effects of NPs. The model considers basic cellular mechanisms including proliferation, apoptosis, and production of cytokines in response to NPs. This new model is implemented for macrophages and parameterized using in vitro measurements of changes in cellular viability and mRNA levels of cytokines: TNF, IL-1b, IL-6, IL-8, and IL-10. The model includes in vitro cellular dosimetry due to nanoparticle transport and transformation. Furthermore, the model developed here optimizes the essential cellular parameters based on in vitro measurements, and provides a "stepping stone" for the development of more advanced in vivo models that will incorporate additional cellular and NP interactions.
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45
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Silva RM, Xu J, Saiki C, Anderson DS, Franzi LM, Vulpe CD, Gilbert B, Van Winkle LS, Pinkerton KE. Short versus long silver nanowires: a comparison of in vivo pulmonary effects post instillation. Part Fibre Toxicol 2014; 11:52. [PMID: 25292367 PMCID: PMC4198797 DOI: 10.1186/s12989-014-0052-6] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2014] [Accepted: 09/23/2014] [Indexed: 11/21/2022] Open
Abstract
Background Silver nanowires (Ag NWs) are increasingly being used to produce touchscreens for smart phones and computers. When applied in a thin film over a plastic substrate, Ag NWs create a transparent, highly-conductive network of fibers enabling the touch interface between consumers and their electronics. Large-scale application methods utilize techniques whereby Ag NW suspensions are deposited onto substrates via droplets. Aerosolized droplets increase risk of occupational Ag NW exposure. Currently, there are few published studies on Ag NW exposure-related health effects. Concerns have risen about the potential for greater toxicity from exposure to high-aspect ratio nanomaterials compared to their non-fibrous counterparts. This study examines whether Ag NWs of varying lengths affect biological responses and silver distribution within the lungs at different time-points. Methods Two different sizes of Ag NWs (2 μm [S-Ag NWs] and 20 μm [L-Ag NWs]) were tested. Male, Sprague-Dawley rats were intratracheally instilled with Ag NWs (0, 0.1, 0.5, or 1.0 mg/kg). Broncho-alveolar lavage fluid (BALF) and lung tissues were obtained at 1, 7, and 21 days post exposure for analysis of BAL total cells, cell differentials, and total protein as well as tissue pathology and silver distribution. Results and conclusions The two highest doses produced significant increases in BAL endpoints. At Day 1, Ag NWs increased total cells, inflammatory polymorphonuclear cells (PMNs), and total protein. PMNs persisted for both Ag NW types at Day 7, though not significantly so, and by Day 21, PMNs appeared in line with sham control values. Striking histopathological features associated with Ag NWs included 1) a strong influx of eosinophils at Days 1 and 7; and 2) formation of Langhans and foreign body giant cells at Days 7 and 21. Epithelial sloughing in the terminal bronchioles (TB) and cellular exudate in alveolar regions were also common. By Day 21, Ag NWs were primarily enclosed in granulomas or surrounded by numerous macrophages in the TB-alveolar duct junction. These findings suggest short and long Ag NWs produce pulmonary toxicity; thus, further research into exposure-related health effects and possible exposure scenarios are necessary to ensure human safety as Ag NW demand increases. Electronic supplementary material The online version of this article (doi:10.1186/s12989-014-0052-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Kent E Pinkerton
- Center for Health and the Environment, University of California, One Shields Avenue, Davis 95616, CA, USA.
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46
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Silva RM, Doudrick K, Franzi LM, TeeSy C, Anderson DS, Wu Z, Mitra S, Vu V, Dutrow G, Evans JE, Westerhoff P, Van Winkle LS, Raabe OG, Pinkerton KE. Instillation versus inhalation of multiwalled carbon nanotubes: exposure-related health effects, clearance, and the role of particle characteristics. ACS NANO 2014; 8:8911-31. [PMID: 25144856 PMCID: PMC4174094 DOI: 10.1021/nn503887r] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Accepted: 08/14/2014] [Indexed: 05/18/2023]
Abstract
Inhaled multiwalled carbon nanotubes (MWCNTs) may cause adverse pulmonary responses due to their nanoscale, fibrous morphology and/or biopersistance. This study tested multiple factors (dose, time, physicochemical characteristics, and administration method) shown to affect MWCNT toxicity with the hypothesis that these factors will influence significantly different responses upon MWCNT exposure. The study is unique in that (1) multiple administration methods were tested using particles from the same stock; (2) bulk MWCNT formulations had few differences (metal content, surface area/functionalization); and (3) MWCNT retention was quantified using a specialized approach for measuring unlabeled MWCNTs in rodent lungs. Male Sprague-Dawley rats were exposed to original (O), purified (P), and carboxylic acid functionalized (F) MWCNTs via intratracheal instillation and inhalation. Blood, bronchoalveolar lavage fluid (BALF), and lung tissues were collected at postexposure days 1 and 21 for quantifying biological responses and MWCNTs in lung tissues by programmed thermal analysis. At day 1, MWCNT instillation produced significant BALF neutrophilia and MWCNT-positive macrophages. Instilled O- and P-MWCNTs produced significant inflammation in lung tissues, which resolved by day 21 despite MWCNT retention. MWCNT inhalation produced no BALF neutrophilia and no significant histopathology past day 1. However, on days 1 and 21 postinhalation of nebulized MWCNTs, significantly increased numbers of MWCNT-positive macrophages were observed in BALF. Results suggest (1) MWCNTs produce transient inflammation if any despite persistence in the lungs; (2) instilled O-MWCNTs cause more inflammation than P- or F-MWCNTs; and (3) MWCNT suspension media produce strikingly different effects on physicochemical particle characteristics and pulmonary responses.
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Affiliation(s)
- Rona M. Silva
- Center for Health and the Environment, University of California, Davis, California 95616, United States
| | - Kyle Doudrick
- School of Sustainable Engineering and The Built Environment, Arizona State University, Tempe, Arizona 85287-5306, United States
| | - Lisa M. Franzi
- Department of Pulmonary Medicine, School of Medicine, University of California, Davis, California 95616, United States
| | - Christel TeeSy
- Center for Health and the Environment, University of California, Davis, California 95616, United States
| | - Donald S. Anderson
- Center for Health and the Environment, University of California, Davis, California 95616, United States
| | - Zheqiong Wu
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark, New Jersey 07102, United States
| | - Somenath Mitra
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark, New Jersey 07102, United States
| | - Vincent Vu
- Department of Molecular and Cellular Biology, University of California, Davis, California 95616, United States
| | - Gavin Dutrow
- Department of Molecular and Cellular Biology, University of California, Davis, California 95616, United States
| | - James E. Evans
- Department of Molecular and Cellular Biology, University of California, Davis, California 95616, United States
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Paul Westerhoff
- School of Sustainable Engineering and The Built Environment, Arizona State University, Tempe, Arizona 85287-5306, United States
| | - Laura S. Van Winkle
- Center for Health and the Environment, University of California, Davis, California 95616, United States
| | - Otto G. Raabe
- Department of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, California 95616, United States
| | - Kent E. Pinkerton
- Center for Health and the Environment, University of California, Davis, California 95616, United States
- Address correspondence to
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47
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Chen S, Theodorou IG, Goode AE, Gow A, Schwander S, Zhang J(J, Chung KF, Tetley TD, Shaffer MS, Ryan MP, Porter AE. High-resolution analytical electron microscopy reveals cell culture media-induced changes to the chemistry of silver nanowires. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2013; 47:13813-21. [PMID: 24160871 PMCID: PMC3989148 DOI: 10.1021/es403264d] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
There is a growing concern about the potential adverse effects on human health upon exposure to engineered silver nanomaterials (particles, wires, and plates). However, the majority of studies testing the toxicity of silver nanomaterials have examined nominally "as-synthesized" materials without considering the fate of the materials in biologically relevant fluids. Here, in-house silver nanowires (AgNWs) were prepared by a modified polyol process and were incubated in three cell culture media (DMEM, RPMI-1640, and DCCM-1) to examine the impact of AgNW-medium interactions on the physicochemical properties of the AgNWs. High-resolution analytical transmission electron microscopy revealed that Ag2S crystals form on the surface of AgNWs within 1 h of incubation in DCCM-1. In contrast, the incubation of AgNWs in RPMI-1640 or DMEM did not lead to sulfidation. When the DCCM-1 cell culture medium was separated into its small molecule solutes and salts and protein components, the AgNWs were found to sulfidize in the fraction containing small molecule solutes and salts but not in the fraction containing the protein component of the media. Further investigation showed the AgNWs did not readily sulfidize in the presence of isolated sulfur containing amino acids or proteins, such as cysteine or bovine serum albumin (BSA). The results demonstrate that the AgNWs can be transformed by the media before and during the incubation with cells, and therefore, the effects of cell culture media must be considered in the analysis of toxicity assays. Appropriate media and material controls must be in place to allow accurate predictions about the toxicity and, ultimately, the health risk of this commercially relevant class of nanomaterial.
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Affiliation(s)
- Shu Chen
- Department of Materials and London Centre for Nanotechnology, Imperial College London, Exhibition Road, London SW7 2AZ, UK
| | - Ioannis G. Theodorou
- Department of Materials and London Centre for Nanotechnology, Imperial College London, Exhibition Road, London SW7 2AZ, UK
| | - Angela E. Goode
- Department of Materials and London Centre for Nanotechnology, Imperial College London, Exhibition Road, London SW7 2AZ, UK
| | - Andrew Gow
- Department of Pharmacology and Toxicology at Rutgers University, Piscataway, NJ, USA
| | - Stephan Schwander
- Department of Environmental and Occupational Health, University of Medicine and Dentistry (UMDNJ) School of Public Health, New Jersey, USA
| | - Junfeng (Jim) Zhang
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, USA
| | - Kian Fan Chung
- National Heart and Lung Institute, Imperial College London, UK
| | | | - Milo S. Shaffer
- Department of Chemistry and London Centre for Nanotechnology, Imperial College London, Exhibition Road, London SW7 2AZ, UK
| | - Mary P. Ryan
- Department of Materials and London Centre for Nanotechnology, Imperial College London, Exhibition Road, London SW7 2AZ, UK
- (M.P.R.) Phone: (+44)2075946755; fax: (+44)2075945017;
| | - Alexandra E. Porter
- Department of Materials and London Centre for Nanotechnology, Imperial College London, Exhibition Road, London SW7 2AZ, UK
- (A.E.P.) Phone: (+44)2075949691; fax: (+44)2075945017;
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