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Pang Y, Tao X, Qin Z, Jiang M, Song E, Song Y. Chiral silver nanoparticles with surface-anchored L(D)-Cys exhibit dissimilar biological characteristics in vitro but not in vivo. Toxicol Lett 2024; 398:28-37. [PMID: 38851367 DOI: 10.1016/j.toxlet.2024.06.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 05/16/2024] [Accepted: 06/06/2024] [Indexed: 06/10/2024]
Abstract
This work investigated the influence of surface chirality on cellular internalization, cytotoxicity, and tissue distribution of silver nanoparticles (AgNPs). D-cysteine and L-cysteine are chiral forms of the amino acid cysteine. These enantiomers exhibit distinct spatial arrangements, with D-cysteine having a different configuration from L-cysteine. This structural dissimilarity can lead to variations in how these forms interact with biological systems, potentially impacting their cytotoxic responses. Four distinct types of AgNPs were synthesized, each possessing a unique surface coating: pristine AgNPs (pAgNPs), L-cysteine coated AgNPs (AgNPs@L-Cys), D-cysteine coated AgNPs (AgNPs@D-Cys), and racemic AgNPs coated with both L-Cys and D-Cys (AgNPs@L/D-Cys). We found chiral-dependent cytotoxicity of AgNPs on J774A.1 cells. Specifically, AgNPs@L-Cys exhibited the highest toxicity, and AgNPs@D-Cys exhibited the lowest toxicity. Meanwhile, the cellular uptake of the AgNPs correlated nicely with their cytotoxicity, with AgNPs@L-Cys being internalized to the greatest extent while AgNPs@D-Cys displays the least internalization. Scavenger receptors and clathrin predominantly mediate the cellular internalization of these AgNPs. Strikingly, the dissimilar cellular internalization and cytotoxicity of AgNPs with different chirality were eliminated upon protein corona coverage. Notably, following intravenous injection in mice, these four types of AgNPs showed similar patterns among various organs due to the inevitable protein adsorption in the bloodstream. These findings underscored the pivotal role of surface chirality in governing the biological interactions and toxicity of AgNPs.
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Affiliation(s)
- Yingxin Pang
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, College of Food Science, Southwest University, China
| | - Xiaoqi Tao
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, College of Food Science, Southwest University, China; Joint International Research Laboratory of Animal Health and Animal Food Safety, College of Veterinary Medicine, Southwest University, China.
| | - Zongmin Qin
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, College of Food Science, Southwest University, China
| | - Muran Jiang
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, College of Food Science, Southwest University, China
| | - Erqun Song
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, College of Pharmaceutical Sciences, Southwest University, China
| | - Yang Song
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences.
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Zhao R, Zhao C, Wan Y, Majid M, Abbas SQ, Wang Y. In vitro and in vivo evaluation of alginate hydrogel-based wound dressing loaded with green chemistry cerium oxide nanoparticles. Front Chem 2023; 11:1298808. [PMID: 38075491 PMCID: PMC10701403 DOI: 10.3389/fchem.2023.1298808] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Accepted: 11/06/2023] [Indexed: 02/17/2024] Open
Abstract
Interactive wound dressings have displayed promising outcomes in enhancing the wound healing process. This study focuses on creating a nanocomposite wound dressing with interactive and bioactive properties, showcasing potent antioxidant effects. To achieve this, we developed cerium oxide nanoparticles utilizing curcumin as both the reducing and capping agent. Characterization techniques such as SEM, EDX, DLS, Zetasizer, FTIR, and XRD were utilized to analyze the cerium oxide nanoparticles synthesized through a green approach. The image analysis on the obtained TEM images showed that the curcumin-assisted biosynthesized CeO2NPs have a size of 18.8 ± 4.1 nm. The peaks located at 28.1, 32.7, 47.1, 56.0, 58.7, 69.0, and 76.4 correspond to (111), (200), (220), (311), (222), (400), and (331) crystallographic planes. We applied the Debye-Scherrer equation and observed that the approximate crystallite size of the biosynthesized NPs is around 8.2 nm based on the most intensive broad Bragg peak at 28.1°. The cerium oxide nanoparticles synthesized were integrated into an alginate hydrogel matrix, and the microstructure, porosity, and swelling behavior of the resulting wound dressing were assessed. The characterization analyses provided insights into the physical and chemical properties of the green-synthesized cerium oxide nanoparticles and the alginate hydrogel-based wound dressing. In vitro studies demonstrated that the wound dressing based on alginate hydrogel exhibited favorable antioxidant properties and displayed hemocompatibility and biocompatibility. Animal studies conducted on a rat full-thickness skin wound model showed that the alginate hydrogel-based wound dressing effectively accelerated the wound healing process. Overall, these findings suggest that the alginate hydrogel-based wound dressing holds promise as a highly effective material for wound healing applications.
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Affiliation(s)
- Ran Zhao
- Burn and Plastic Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
- Key Laboratory of Biopharmaceuticals, Postdoctoral Scientific Research Workstation, Shandong Academy of Pharmaceutical Science, Jinan, Shandong, China
| | - Chenyuyao Zhao
- Graduate School, Shandong First Medical University, Jinan, Shandong, China
| | - Yi Wan
- School of Mechanical Engineering, Shandong University, Jinan, Shandong, China
| | - Muhammad Majid
- Faculty of Pharmacy, Hamdard University, Islamabad, Pakistan
| | - Syed Qamar Abbas
- Department of Pharmacy, Sarhad University of Science and Technology, Peshawar, Pakistan
| | - Yibing Wang
- Burn and Plastic Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
- Key Laboratory of Biopharmaceuticals, Postdoctoral Scientific Research Workstation, Shandong Academy of Pharmaceutical Science, Jinan, Shandong, China
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Mallah MA, Soomro T, Ali M, Noreen S, Khatoon N, Kafle A, Feng F, Wang W, Naveed M, Zhang Q. Cigarette smoking and air pollution exposure and their effects on cardiovascular diseases. Front Public Health 2023; 11:967047. [PMID: 38045957 PMCID: PMC10691265 DOI: 10.3389/fpubh.2023.967047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 06/26/2023] [Indexed: 12/05/2023] Open
Abstract
Cardiovascular disease (CVD) has no socioeconomic, topographical, or sex limitations as reported by the World Health Organization (WHO). The significant drivers of CVD are cardio-metabolic, behavioral, environmental, and social risk factors. However, some significant risk factors for CVD (e.g., a pitiable diet, tobacco smoking, and a lack of physical activities), have also been linked to an elevated risk of cardiovascular disease. Lifestyles and environmental factors are known key variables in cardiovascular disease. The familiarity with smoke goes along with the contact with the environment: air pollution is considered a source of toxins that contribute to the CVD burden. The incidence of myocardial infarction increases in males and females and may lead to fatal coronary artery disease, as confirmed by epidemiological studies. Lipid modification, inflammation, and vasomotor dysfunction are integral components of atherosclerosis development and advancement. These aspects are essential for the identification of atherosclerosis in clinical investigations. This article aims to show the findings on the influence of CVD on the health of individuals and human populations, as well as possible pathology and their involvement in smoking-related cardiovascular diseases. This review also explains lifestyle and environmental factors that are known to contribute to CVD, with indications suggesting an affiliation between cigarette smoking, air pollution, and CVD.
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Affiliation(s)
| | - Tahmina Soomro
- Department of Sociology, Shah Abdul Latif University, Khairpur, Pakistan
| | - Mukhtiar Ali
- Department of Chemical Engineering, Quaid-e-Awam University of Engineering, Science and Technology, Nawabshah, Sindh, Pakistan
| | - Sobia Noreen
- Department of Pharmaceutics Technology, Institute of Pharmacy, University of Innsbruck, Insbruck, Austria
| | - Nafeesa Khatoon
- College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Akriti Kafle
- School of Nursing, Zhengzhou University, Zhengzhou, China
| | - Feifei Feng
- College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Wei Wang
- College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Muhammad Naveed
- Department of Physiology and Pharmacology, College of Medicine and Life Sciences, University of Toledo, Toledo, OH, United States
| | - Qiao Zhang
- College of Public Health, Zhengzhou University, Zhengzhou, China
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Thai SF, Jones CP, Robinette BL, Ren H, Vallanat B, Fisher A, Kitchin KT. Differential genomic effects of four nano-sized and one micro-sized CeO 2 particles on HepG2 cells. MATERIALS EXPRESS : AN INTERNATIONAL JOURNAL ON MULTIDISCIPLINARY MATERIALS RESEARCH 2023; 13:1799-1811. [PMID: 38009104 PMCID: PMC10667950 DOI: 10.1166/mex.2023.2527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2023]
Abstract
The objective of this research was to perform a genomics study of five cerium oxide particles, 4 nano and one micrometer-sized particles which have been studied previously by our group with respect to cytotoxicity, biochemistry and metabolomics. Human liver carcinoma HepG2 cells were exposed to between 0.3 to 300 ug/ml of CeO2 particles for 72 hours and then total RNA was harvested. Fatty acid accumulation was observed with W4, X5, Z7 and less with Q but not Y6. The gene expression changes in the fatty acid metabolism genes correlated the fatty acid accumulation we detected in the prior metabolomics study for the CeO2 particles named W4, Y6, Z7 and Q, but not for X5. In particular, the observed genomics effects on fatty acid uptake and fatty acid oxidation offer a possible explanation of why many CeO2 particles increase cellular free fatty acid concentrations in HepG2 cells. The major genomic changes observed in this study were sirtuin, ubiquitination signaling pathways, NRF2-mediated stress response and mitochondrial dysfunction. The sirtuin pathway was affected by many CeO2 particle treatments. Sirtuin signaling itself is sensitive to oxidative stress state of the cells and may be an important contributor in CeO2 particle induced fatty acid accumulation. Ubiquitination pathway regulates many protein functions in the cells, including sirtuin signaling, NRF2 mediated stress, and mitochondrial dysfunction pathways. NRF2-mediated stress response and mitochondrial were reported to be altered in many nanoparticles treated cells. All these pathways may contribute to the fatty acid accumulation in the CeO2 particle treated cells.
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Affiliation(s)
- Sheau-Fung Thai
- Center for Computational Toxicology and Exposure, US Environmental Protection Agency, 109 TW Alexander Dr., Durham NC 27709 USA
| | - Carlton P Jones
- Center for Computational Toxicology and Exposure, US Environmental Protection Agency, 109 TW Alexander Dr., Durham NC 27709 USA
| | - Brian L Robinette
- Center for Computational Toxicology and Exposure, US Environmental Protection Agency, 109 TW Alexander Dr., Durham NC 27709 USA
| | - Hongzu Ren
- Center for Computational Toxicology and Exposure, US Environmental Protection Agency, 109 TW Alexander Dr., Durham NC 27709 USA
| | - Beena Vallanat
- Center for Computational Toxicology and Exposure, US Environmental Protection Agency, 109 TW Alexander Dr., Durham NC 27709 USA
| | - Anna Fisher
- Center for Computational Toxicology and Exposure, US Environmental Protection Agency, 109 TW Alexander Dr., Durham NC 27709 USA
| | - Kirk T Kitchin
- Center for Computational Toxicology and Exposure, US Environmental Protection Agency, 109 TW Alexander Dr., Durham NC 27709 USA
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5
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Bruno L, Evariste L, Houdeau E. Dysregulation along the gut microbiota-immune system axis after oral exposure to titanium dioxide nanoparticles: A possible environmental factor promoting obesity-related metabolic disorders. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 330:121795. [PMID: 37187281 DOI: 10.1016/j.envpol.2023.121795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 04/24/2023] [Accepted: 05/07/2023] [Indexed: 05/17/2023]
Abstract
Food additives are one major hallmark of ultra-processed food in the Western-diet, a food habit often associated with metabolic disorders. Among these additives, the whitener and opacifying agent titanium dioxide (TiO2) raises public health issues due to the ability of TiO2 nanoparticles (NPs) to cross biological barriers and accumulate in different systemic organs like spleen, liver and pancreas. However before their systemic passage, the biocidal properties of TiO2 NPs may alter the composition and activity of the gut microbiota, which play a crucial role for the development and maintenance of immune functions. Once absorbed, TiO2 NPs may further interact with immune intestinal cells involved in gut microbiota regulation. Since obesity-related metabolic diseases such as diabetes are associated with alterations in the microbiota-immune system axis, this raises questions about the possible involvement of long-term exposure to food-grade TiO2 in the development or worsening of these diseases. The current purpose is to review the dysregulations along the gut microbiota-immune system axis after oral TiO2 exposure compared to those reported in obese or diabetic patients, and to highlight potential mechanisms by which foodborne TiO2 NPs may increase the susceptibility to develop obesity-related metabolic disorders.
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Affiliation(s)
- Lamas Bruno
- Toxalim (Research Centre in Food Toxicology), Team Endocrinology and Toxicology of Intestinal Barrier, Université de Toulouse, INRAE, ENVT, INP-Purpan, UPS, Toulouse, France.
| | - Lauris Evariste
- Toxalim (Research Centre in Food Toxicology), Team Endocrinology and Toxicology of Intestinal Barrier, Université de Toulouse, INRAE, ENVT, INP-Purpan, UPS, Toulouse, France
| | - Eric Houdeau
- Toxalim (Research Centre in Food Toxicology), Team Endocrinology and Toxicology of Intestinal Barrier, Université de Toulouse, INRAE, ENVT, INP-Purpan, UPS, Toulouse, France
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6
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Kışla D, Gökmen GG, Akdemir Evrendilek G, Akan T, Vlčko T, Kulawik P, Režek Jambrak A, Ozogul F. Recent developments in antimicrobial surface coatings: Various deposition techniques with nanosized particles, their application and environmental concerns. Trends Food Sci Technol 2023. [DOI: 10.1016/j.tifs.2023.03.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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7
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Violatto MB, Sitia G, Talamini L, Morelli A, Tran NL, Zhang Q, Masood A, Pelaz B, Chakraborty I, Cui D, Parak WJ, Salmona M, Bastús NG, Puntes V, Bigini P. Variations in Biodistribution and Acute Response of Differently Shaped Titania Nanoparticles in Healthy Rodents. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1174. [PMID: 37049267 PMCID: PMC10097059 DOI: 10.3390/nano13071174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 03/22/2023] [Accepted: 03/23/2023] [Indexed: 06/19/2023]
Abstract
Titanium dioxide nanoparticles (TiO2 NPs) are one of the main sources of the nanoparticulate matter exposure to humans. Although several studies have demonstrated their potential toxic effects, the real nature of the correlation between NP properties and their interaction with biological targets is still far from being fully elucidated. Here, engineered TiO2 NPs with various geometries (bipyramids, plates, and rods) have been prepared, characterized and intravenously administered in healthy mice. Parameters such as biodistribution, accumulation, and toxicity have been assessed in the lungs and liver. Our data show that the organ accumulation of TiO2 NPs, measured by ICP-MS, is quite low, and this is only partially and transiently affected by the NP geometries. The long-lasting permanence is exclusively restricted to the lungs. Here, bipyramids and plates show a higher accumulation, and interestingly, rod-shaped NPs are the most toxic, leading to histopathological pulmonary alterations. In addition, they are also able to induce a transient increase in serum markers related to hepatocellular injury. These results indicate that rods, more than bipyramidal and spherical geometries, lead to a stronger and more severe biological effect. Overall, small physico-chemical differences can dramatically modify both accumulation and safety.
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Affiliation(s)
- Martina B. Violatto
- Department of Molecular Biochemistry and Pharmacology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, 20156 Milano, Italy; (M.B.V.); (L.T.); (A.M.); (M.S.)
| | - Giovanni Sitia
- Experimental Hepatology Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Via Olgettina 58, 20132 Milano, Italy; (G.S.); (N.L.T.)
| | - Laura Talamini
- Department of Molecular Biochemistry and Pharmacology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, 20156 Milano, Italy; (M.B.V.); (L.T.); (A.M.); (M.S.)
| | - Annalisa Morelli
- Department of Molecular Biochemistry and Pharmacology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, 20156 Milano, Italy; (M.B.V.); (L.T.); (A.M.); (M.S.)
| | - Ngoc Lan Tran
- Experimental Hepatology Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Via Olgettina 58, 20132 Milano, Italy; (G.S.); (N.L.T.)
| | - Qian Zhang
- Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Institute of Nano Biomedicine and Engineering, Shanghai Jiao Tong University, 800 Dongchuan RD, Shanghai 200240, China; (Q.Z.); (D.C.)
| | - Atif Masood
- Karachi Institute of Radiotherapy and Nuclear Medicine (KIRAN), 75530 Karachi, Pakistan;
| | - Beatriz Pelaz
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Departamento de Química Inorgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain;
| | - Indranath Chakraborty
- School of Nano Science and Technology, Indian Institute of Technology Kharagpur, Kharagpur 721302, India;
| | - Daxiang Cui
- Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Institute of Nano Biomedicine and Engineering, Shanghai Jiao Tong University, 800 Dongchuan RD, Shanghai 200240, China; (Q.Z.); (D.C.)
| | - Wolfgang J. Parak
- Center for Hybrid Nanostructures (CHyN), Universität Hamburg, Luruper Chaussee 149, 22607 Hamburg, Germany;
| | - Mario Salmona
- Department of Molecular Biochemistry and Pharmacology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, 20156 Milano, Italy; (M.B.V.); (L.T.); (A.M.); (M.S.)
| | - Neus G. Bastús
- Vall d’Hebron Institut de Recerca (VHIR), 08035 Barcelona, Spain; (N.G.B.); (V.P.)
- Institució Catalana de Recerca i Estudis Avançats (ICREA), 08010 Barcelona, Spain
| | - Victor Puntes
- Vall d’Hebron Institut de Recerca (VHIR), 08035 Barcelona, Spain; (N.G.B.); (V.P.)
- Institució Catalana de Recerca i Estudis Avançats (ICREA), 08010 Barcelona, Spain
- Institut Català de Nanociència i Nanotecnologia (ICN2), Consejo Superior de Investigaciones Científicas CSIC and the Barcelona Institute of Science and Technology (BIST), Campus UAB, Bellaterra, 08036 Barcelona, Spain
- CIBER en Bioingeniería, Biomateriales y Nanomedicina, CIBER-BBN, 28029 Madrid, Spain
| | - Paolo Bigini
- Department of Molecular Biochemistry and Pharmacology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, 20156 Milano, Italy; (M.B.V.); (L.T.); (A.M.); (M.S.)
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Ibrahim AM, Ghazy M, El-Sayed H, Abd El-Hameed RM, Khalil RG, Korany SM, Aloufi AS, Hammam OA, Morad MY. Histopathological, Immunohistochemical, Biochemical, and In Silico Molecular Docking Study of Fungal-Mediated Selenium Oxide Nanoparticles on Biomphalaria alexandrina (Ehrenberg, 1831) Snails. Microorganisms 2023; 11:microorganisms11030811. [PMID: 36985384 PMCID: PMC10053037 DOI: 10.3390/microorganisms11030811] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 03/15/2023] [Accepted: 03/17/2023] [Indexed: 03/30/2023] Open
Abstract
Daphnia magna and freshwater snails are used as delicate bioindicators of contaminated aquatic habitats. Due to their distinctive characteristics, selenium oxide nanoparticles (SeONPs) have received interest regarding their possible implications on aquatic environments. The current study attempted to investigate the probable mechanisms of fungal-mediated selenium nanoparticles' ecotoxicological effects on freshwater Biomphalaria alexandrina snails and Daphnia magna. SeONPs revealed a toxicological impact on D. magna, with a half-lethal concentration (LC50) of 1.62 mg/L after 24 h and 1.08 mg/L after 48 h. Survival, fecundity, and reproductive rate were decreased in B. alexandrina snails exposed to SeONPs. Furthermore, the aspartate aminotransferase (AST) and alanine aminotransferase (ALT) levels were markedly elevated, while albumin and total protein levels decreased. Histopathological damage in the hermaphrodite and digestive glands was detected by light, electron microscopy, and immunohistochemistry studies. The molecular docking study revealed interactions of selenium oxide with the ALT and AST. In conclusion, B. alexandrina snails and D. magna could be employed as bioindicators of selenium nanomaterial pollution in aquatic ecosystems. This study emphasizes the possible ecological effects of releasing SeONPs into aquatic habitats, which could serve as motivation for regulatory organizations to monitor and control the use and disposal of SeONPs in industry.
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Affiliation(s)
- Amina M Ibrahim
- Medical Malacology Department, Theodor Bilharz Research Institute, Giza 12411, Egypt
| | - Mahassen Ghazy
- Water Pollution Research Department, National Research Centre, El Tahrir Street, Dokki, Giza 12622, Egypt
| | - Heba El-Sayed
- Botany and Microbiology Department, Faculty of Science, Helwan University, Helwan 11795, Egypt
| | - Rehab M Abd El-Hameed
- Botany and Microbiology Department, Faculty of Science, Helwan University, Helwan 11795, Egypt
| | - Rehab G Khalil
- Immunology Division, Faculty of Science, Beni-Suef University, Beni-Suef 62521, Egypt
| | - Shereen M Korany
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Abeer S Aloufi
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Olfat A Hammam
- Pathology Departments, Theodor Bilharz Research Institute, Giza 12411, Egypt
| | - Mostafa Y Morad
- Zoology and Entomology Department, Faculty of Science, Helwan University, Helwan 11795, Egypt
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Alghuthaymi MA, Patil S, Rajkuberan C, Krishnan M, Krishnan U, Abd-Elsalam KA. Polianthes tuberosa-Mediated Silver Nanoparticles from Flower Extract and Assessment of Their Antibacterial and Anticancer Potential: An In Vitro Approach. PLANTS (BASEL, SWITZERLAND) 2023; 12:1261. [PMID: 36986949 PMCID: PMC10054782 DOI: 10.3390/plants12061261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/04/2023] [Accepted: 03/08/2023] [Indexed: 06/19/2023]
Abstract
Plant-mediated metallic nanoparticles have beenreported for a diversified range of applications in biological sciences. In the present study, we propose the Polianthes tuberosa flower as a reducing and stabilizing agent for the synthesis of silver nanoparticles (PTAgNPs). The PTAgNPs were exclusively characterized using UV-Visible spectroscopy, Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), X-ray diffraction (XRD), atomic force microscopy, zeta potential, and transmission electron microscopy (TEM) studies. In a biological assay, we investigated the antibacterial and anticancer activity of silver nanoparticles in the A431 cell line. The PTAgNPs demonstrated a dose-dependent activity in E. coli and S. aureus, suggesting the bactericidal nature of AgNPs. The PTAgNPs exhibited dose-dependent toxicity in the A431 cell line, with an IC50 of 54.56 µg/mL arresting cell growth at the S phase, as revealed by flow cytometry analysis. The COMET assay revealed 39.9% and 18.15 severities of DNA damage and tail length in the treated cell line, respectively. Fluorescence staining studies indicate that PTAgNPs cause reactive oxygen species (ROS) and trigger apoptosis. This research demonstrates that synthesized silver nanoparticles have a significant effect on inhibiting the growth of melanoma cells and other forms of skin cancer. The results show that these particles can cause apoptosis or cell death in malignant tumor cells. This suggests that they could be used to treat skin cancers without harming normal tissues.
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Affiliation(s)
- Mousa A. Alghuthaymi
- Biology Department, Science and Humanities College, Shaqra University, Alquwayiyah 11971, Saudi Arabia
| | - Sunita Patil
- Rajiv Memorial Education Society’s College of Pharmacy, Gulbarga 585102, India
| | | | - Muthukumar Krishnan
- Department of Petrochemical Technology, Anna University, Tiruchirappalli 620024, India
| | - Ushani Krishnan
- Karpaga vinayaga College of Engineering, Chengalpattu 603308, India
| | - Kamel A. Abd-Elsalam
- Plant Pathology Research Institute, Agricultural Research Center, Giza 12619, Egypt
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10
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Lyons-Darden T, Blum JL, Schooley MW, Ellis M, Durando J, Merrill D, Oller AR. An Assessment of the Oral and Inhalation Acute Toxicity of Nickel Oxide Nanoparticles in Rats. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:261. [PMID: 36678015 PMCID: PMC9860552 DOI: 10.3390/nano13020261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 12/30/2022] [Accepted: 01/04/2023] [Indexed: 06/17/2023]
Abstract
Nickel oxide nanoparticles (NiO NPs) have been the focus of many toxicity studies. However, acute toxicity studies that identify toxicological dose descriptors, such as an LC50 or LD50, are lacking. In this paper, the acute toxicity of NiO NPs was evaluated in albino-derived Sprague-Dawley rats through OECD guideline studies conducted by both the oral and inhalation routes of exposure. The animals were assessed for mortality, body weight, behavioral observations, and gross necropsy. Results from previously conducted (unpublished) acute inhalation studies with larger NiO microparticles (MPs) are also included for comparison. Mortality, the primary endpoint in acute toxicity studies, was not observed for rats exposed to NiO NPs via either the oral or inhalation exposure routes, with a determined LD50 of >5000 mg/kg and an LC50 > 5.42 mg/L, respectively. Our results suggest that these NiO NPs do not exhibit serious acute toxicity in rats or warrant an acute toxicity classification under the current GHS classification criteria. This aligns with similar results for NiO MPs from this and previously published studies.
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Affiliation(s)
| | - Jason L. Blum
- Product Safety Labs, 2394 US Highway 130, Dayton, NJ 08810, USA
| | | | - Melissa Ellis
- Product Safety Labs, 2394 US Highway 130, Dayton, NJ 08810, USA
| | | | - Daniel Merrill
- Product Safety Labs, 2394 US Highway 130, Dayton, NJ 08810, USA
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11
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Sheidaei Z, Akbarzadeh P, Guiducci C, Kashaninejad N. Prediction of Dispersion Rate of Airborne Nanoparticles in a Gas-Liquid Dual-Microchannel Separated by a Porous Membrane: A Numerical Study. MICROMACHINES 2022; 13:2220. [PMID: 36557519 PMCID: PMC9785617 DOI: 10.3390/mi13122220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 12/11/2022] [Accepted: 12/11/2022] [Indexed: 06/17/2023]
Abstract
Recently, there has been increasing attention toward inhaled nanoparticles (NPs) to develop inhalation therapies for diseases associated with the pulmonary system and investigate the toxic effects of hazardous environmental particles on human lung health. Taking advantage of microfluidic technology for cell culture applications, lung-on-a-chip devices with great potential in replicating the lung air-blood barrier (ABB) have opened new research insights in preclinical pathology and therapeutic studies associated with aerosol NPs. However, the air interface in such devices has been largely disregarded, leaving a gap in understanding the NPs' dynamics in lung-on-a-chip devices. Here, we develop a numerical parametric study to provide insights into the dynamic behavior of the airborne NPs in a gas-liquid dual-channel lung-on-a-chip device with a porous membrane separating the channels. We develop a finite element multi-physics model to investigate particle tracing in both air and medium phases to replicate the in vivo conditions. Our model considers the impact of fluid flow and geometrical properties on the distribution, deposition, and translocation of NPs with diameters ranging from 10 nm to 900 nm. Our findings suggest that, compared to the aqueous solution of NPs, the aerosol injection of NPs offers more efficient deposition on the substrate of the air channel and higher translocation to the media channel. Comparative studies against accessible data, as well as an experimental study, verify the accuracy of the present numerical analysis. We propose a strategy to optimize the affecting parameters to control the injection and delivery of aerosol particles into the lung-on-chip device depending on the objectives of biomedical investigations and provide optimized values for some specific cases. Therefore, our study can assist scientists and researchers in complementing their experimental investigation in future preclinical studies on pulmonary pathology associated with inhaled hazardous and toxic environmental particles, as well as therapeutic studies for developing inhalation drug delivery.
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Affiliation(s)
- Zohreh Sheidaei
- Faculty of Mechanical and Mechatronics Engineering, Shahrood University of Technology, Shahrood 3619995161, Iran
- Laboratory of Life Sciences Electronics, École Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland
| | - Pooria Akbarzadeh
- Faculty of Mechanical and Mechatronics Engineering, Shahrood University of Technology, Shahrood 3619995161, Iran
| | - Carlotta Guiducci
- Laboratory of Life Sciences Electronics, École Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland
| | - Navid Kashaninejad
- Queensland Micro- and Nanotechnology Centre, Nathan Campus, Griffith University, 170 Kessels Road, Brisbane, QLD 4111, Australia
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12
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McCourt KM, Cochran J, Abdelbasir SM, Carraway ER, Tzeng TRJ, Tsyusko OV, Vanegas DC. Potential Environmental and Health Implications from the Scaled-Up Production and Disposal of Nanomaterials Used in Biosensors. BIOSENSORS 2022; 12:1082. [PMID: 36551049 PMCID: PMC9775545 DOI: 10.3390/bios12121082] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 11/19/2022] [Accepted: 11/21/2022] [Indexed: 06/17/2023]
Abstract
Biosensors often combine biological recognition elements with nanomaterials of varying compositions and dimensions to facilitate or enhance the operating mechanism of the device. While incorporating nanomaterials is beneficial to developing high-performance biosensors, at the stages of scale-up and disposal, it may lead to the unmanaged release of toxic nanomaterials. Here we attempt to foster connections between the domains of biosensors development and human and environmental toxicology to encourage a holistic approach to the development and scale-up of biosensors. We begin by exploring the toxicity of nanomaterials commonly used in biosensor design. From our analysis, we introduce five factors with a role in nanotoxicity that should be considered at the biosensor development stages to better manage toxicity. Finally, we contextualize the discussion by presenting the relevant stages and routes of exposure in the biosensor life cycle. Our review found little consensus on how the factors presented govern nanomaterial toxicity, especially in composite and alloyed nanomaterials. To bridge the current gap in understanding and mitigate the risks of uncontrolled nanomaterial release, we advocate for greater collaboration through a precautionary One Health approach to future development and a movement towards a circular approach to biosensor use and disposal.
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Affiliation(s)
- Kelli M. McCourt
- Department of Environmental Engineering and Earth Sciences, Clemson University, Clemson, SC 29634, USA
- Global Alliance for Rapid Diagnostics (GARD), Michigan State University, East Lancing, MI 48824, USA
| | - Jarad Cochran
- Department of Plant and Soil Sciences, University of Kentucky, Lexington, KY 40546, USA
| | - Sabah M. Abdelbasir
- Central Metallurgical Research and Development Institute, P.O. Box 87, Helwan 11421, Egypt
| | - Elizabeth R. Carraway
- Department of Environmental Engineering and Earth Sciences, Clemson University, Clemson, SC 29634, USA
| | - Tzuen-Rong J. Tzeng
- Department of Biological Sciences, Clemson University, Clemson, SC 29634, USA
| | - Olga V. Tsyusko
- Department of Plant and Soil Sciences, University of Kentucky, Lexington, KY 40546, USA
| | - Diana C. Vanegas
- Department of Environmental Engineering and Earth Sciences, Clemson University, Clemson, SC 29634, USA
- Global Alliance for Rapid Diagnostics (GARD), Michigan State University, East Lancing, MI 48824, USA
- Interdisciplinary Group for Biotechnology Innovation and Ecosocial Change (BioNovo), Universidad del Valle, Cali 76001, Colombia
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13
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Simon S, Sibuyi NRS, Fadaka AO, Meyer S, Josephs J, Onani MO, Meyer M, Madiehe AM. Biomedical Applications of Plant Extract-Synthesized Silver Nanoparticles. Biomedicines 2022; 10:2792. [PMID: 36359308 PMCID: PMC9687463 DOI: 10.3390/biomedicines10112792] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/25/2022] [Accepted: 10/28/2022] [Indexed: 07/30/2023] Open
Abstract
Silver nanoparticles (AgNPs) have attracted a lot of interest directed towards biomedical applications due in part to their outstanding anti-microbial activities. However, there have been many health-impacting concerns about their traditional synthesis methods, i.e., the chemical and physical methods. Chemical methods are commonly used and contribute to the overall toxicity of the AgNPs, while the main disadvantages of physical synthesis include high production costs and high energy consumption. The biological methods provide an economical and biocompatible option as they use microorganisms and natural products in the synthesis of AgNPs with exceptional biological properties. Plant extract-based synthesis has received a lot of attention and has been shown to resolve the limitations associated with chemical and physical methods. AgNPs synthesized using plant extracts provide a safe, cost-effective, and environment-friendly approach that produces biocompatible AgNPs with enhanced properties for use in a wide range of applications. The review focused on the use of plant-synthesized AgNPs in various biomedical applications as anti-microbial, anti-cancer, anti-inflammatory, and drug-delivery agents. The versatility and potential use of green AgNPs in the bio-medicinal sector provides an innovative alternative that can overcome the limitations of traditional systems. Thus proving green nanotechnology to be the future for medicine with continuous progress towards a healthier and safer environment by forming nanomaterials that are low- or non-toxic using a sustainable approach.
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Affiliation(s)
- Sohail Simon
- Department of Science and Innovation (DSI)/Mintek Nanotechnology Innovation Centre (NIC), Biolabels Research Node, Department of Biotechnology, University of the Western Cape, Bellville 7535, South Africa
- Nanobiotechnology Research Group, Department of Biotechnology, University of the Western Cape, Bellville 7535, South Africa
| | - Nicole Remaliah Samantha Sibuyi
- Department of Science and Innovation (DSI)/Mintek Nanotechnology Innovation Centre (NIC), Biolabels Research Node, Department of Biotechnology, University of the Western Cape, Bellville 7535, South Africa
- Health Platform Diagnostic Unit, Advanced Materials Division, Mintek, Randburg 2194, South Africa
| | - Adewale Oluwaseun Fadaka
- Department of Science and Innovation (DSI)/Mintek Nanotechnology Innovation Centre (NIC), Biolabels Research Node, Department of Biotechnology, University of the Western Cape, Bellville 7535, South Africa
| | - Samantha Meyer
- Department of Biomedical Sciences, Faculty of Health and Wellness Sciences, Cape Peninsula University of Technology, Bellville 7535, South Africa
| | - Jamie Josephs
- Nanobiotechnology Research Group, Department of Biotechnology, University of the Western Cape, Bellville 7535, South Africa
| | - Martin Opiyo Onani
- Organometallics and Nanomaterials, Department of Chemical Sciences, University of the Western Cape, Bellville 7535, South Africa
| | - Mervin Meyer
- Department of Science and Innovation (DSI)/Mintek Nanotechnology Innovation Centre (NIC), Biolabels Research Node, Department of Biotechnology, University of the Western Cape, Bellville 7535, South Africa
| | - Abram Madimabe Madiehe
- Department of Science and Innovation (DSI)/Mintek Nanotechnology Innovation Centre (NIC), Biolabels Research Node, Department of Biotechnology, University of the Western Cape, Bellville 7535, South Africa
- Nanobiotechnology Research Group, Department of Biotechnology, University of the Western Cape, Bellville 7535, South Africa
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14
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Lamas B, Evariste L, Houdeau E. Interactions du dioxyde de titane alimentaire avec l’axe microbiote-système immunitaire : un nouvel acteur dans le développement de désordres métaboliques ? CAHIERS DE NUTRITION ET DE DIÉTÉTIQUE 2022. [DOI: 10.1016/j.cnd.2022.09.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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15
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In vitro review of nanoparticles attacking macrophages: Interaction and cell death. Life Sci 2022; 307:120840. [PMID: 35905812 DOI: 10.1016/j.lfs.2022.120840] [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: 05/30/2022] [Revised: 07/14/2022] [Accepted: 07/21/2022] [Indexed: 11/23/2022]
Abstract
In recent years, the wide application of nanoparticles (NPs) inevitably leads to environmental pollution and human exposure, and its safety has attracted more and more attention. Since macrophages are the cells most directly exposed to multi-pathway invading NPs in the body, it is necessary to assess of toxic effects of NPs in macrophages, clarify the potential mechanisms of NPs toxicity to improve our understanding about the interaction of NPs with macrophages in vivo, and avoid body damage. Currently, studies on the toxicity of NPs to macrophages are rare and mainly focused on in vitro, so this paper integrated the toxic effect of macrophages exposed to NPs and the macrophages cellular changes following the interaction with NPs, including NPs internalization, ROS production, cytokines alterations, DNA damage and cell death, and further explored the involved mechanisms. This review aims to provide some insights into the further toxicological studies of NPs.
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16
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Murthy MK, Mohanty CS, Swain P, Pattanayak R. Assessment of toxicity in the freshwater tadpole Polypedates maculatus exposed to silver and zinc oxide nanoparticles: A multi-biomarker approach. CHEMOSPHERE 2022; 293:133511. [PMID: 34995626 DOI: 10.1016/j.chemosphere.2021.133511] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 12/31/2021] [Accepted: 12/31/2021] [Indexed: 06/14/2023]
Abstract
Nanoparticles (NPs), especially silver nanoparticles (Ag NPs) and zinc oxide nanoparticles (ZnO NPs), are widely used in various industrial applications and are released into the surrounding environment through industrial and household wastewater. They have enormous toxic effects on aquatic animals and amphibians. In the current study, a multi-biomarker approach was used to assess toxicity on Polypedates maculatus (P. maculatus) tadpoles collected from a freshwater pond and exposed to sub-lethal concentrations of Ag-NPs (1, 5 and 10 mg L-1) and ZnO-NPs (1, 10 and 50 mg L-1). A significant bioaccumulation of silver (Ag) and Zinc (Zn) was observed in the blood, liver, kidney and bones in comparison to control tadpoles. Blood parameters (Red blood cells (RBC), Hematocrit (Htc), White blood cells (WBC), monocytes, lymphocytes and neutrophils), immunological markers (ACH50, lysozyme, total Ig, total protein, albumin, and globulin), biochemical markers (glucose, cortisol, cholesterol, triglycerides, alanine transaminase (ALT), asparatate transaminase (AST), alkaline phosphatase (ALP), urea and creatinine) and the oxidative stress marker (LPO) of serum were increased significantly (p < 0.05) in Ag/ZnO-NPs exposed groups when compared to the control groups. The levels of mean corpuscular haemoglobin (MCH), mean corpuscular haemoglobin concentration (MCHC), mean corpuscular volume (MCV) and haemoglobin (Hb) in the ZnO NP-exposed groups were significantly different from those in the control group. Antioxidant (SOD and CAT) levels were significantly declined in the treatment groups. Based on the results, Ag/ZnO-NPs are toxic to aquatic organisms and amphibians at sub-lethal concentrations. The species P. maculatus can be used as a bioindicator for the nanomaterial (NM) contamination of freshwater systems.
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Affiliation(s)
- Meesala Krishna Murthy
- Department of Zoology, College of Basic Science, Odisha University of Agriculture and Technology, Bhubaneswar, 751003, Odisha, India
| | - Chandra Sekhar Mohanty
- Plant Genomic Resources and Improvement Division, CSIR-National Botanical Research Institute, Lucknow, 226 001, Uttar Pradesh, India
| | - Priyabrata Swain
- Fish Health Management Division, Central Institute of Freshwater Aquaculture Kausalyaganga, Bhubaneswar, 751002, India
| | - Rojalin Pattanayak
- Department of Zoology, College of Basic Science, Odisha University of Agriculture and Technology, Bhubaneswar, 751003, Odisha, India.
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17
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Chai J, Zhang W, Liu D, Li S, Chen X, Yang Y, Zhang D. Decreased levels and ecological risks of disinfection by-product chloroform in a field-scale artificial groundwater recharge project by colloid supplement. ENVIRONMENT INTERNATIONAL 2022; 161:107130. [PMID: 35134712 DOI: 10.1016/j.envint.2022.107130] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 01/29/2022] [Accepted: 01/31/2022] [Indexed: 06/14/2023]
Abstract
To bolster freshwater supply, artificial groundwater recharge with recycled water has increasingly attracted research attentions and interests. However, artificial groundwater recharge has potential risks to groundwater quality, as recharge water disinfection is frequently used for pathogen inactivation and causes the concerns of disinfection by-products (DBPs). Colloid supplement is a good approach solving this problem, but its roles in mitigating DBPs remains unclear. In this study, we collected 20 groundwater and soil samples from a field-scale groundwater recharge project, and explored the impacts of silica colloids on chloroform migration and groundwater bacterial communities during the recharge process. Water physicochemical variables changed along the recharge time, and colloid supplement significantly reduced chloroform formation and slowed its migration in groundwater. Bacterial communities in groundwater, river water and recharge water were significantly different. Gammaproteobacteria in recharge water (71.7%) was more abundant than in river water (30.5%) and groundwater (33.5%), while Actinobacteria dominated groundwater (40.6%). After recharge, Gammaproteobacteria increased more with colloid supplement (75.7%) than without (52.6%), attributing to its dominance in soils (74.6%). Our results suggested more bacterial lineages released from soils into aquifer by silica colloid supplement, owing to the competitive adsorption encouraging microbial transfer, especially Gram-negative bacteria. Our findings unraveled the effects of colloid supplement on chloroform formation and migration during artificial groundwater recharge, which consequently altered groundwater bacterial communities, and offered valuable suggestions for the safety management of DBPs in aquifer recharge.
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Affiliation(s)
- Juanfen Chai
- Key Laboratory of Groundwater Resources and Environment (Jilin University), Ministry of Education, Changchun 130021, China; College of New Energy and Environment, Jilin University, Changchun 130021, China
| | - Wenjing Zhang
- Key Laboratory of Groundwater Resources and Environment (Jilin University), Ministry of Education, Changchun 130021, China; College of New Energy and Environment, Jilin University, Changchun 130021, China.
| | - Dan Liu
- Shandong Hydraulic Research Institute, Jinan 250000, China
| | - Shuxin Li
- Key Laboratory of Groundwater Resources and Environment (Jilin University), Ministry of Education, Changchun 130021, China; College of New Energy and Environment, Jilin University, Changchun 130021, China
| | - Xuequn Chen
- Shandong Hydraulic Research Institute, Jinan 250000, China
| | - Yuesuo Yang
- Key Laboratory of Groundwater Resources and Environment (Jilin University), Ministry of Education, Changchun 130021, China; College of New Energy and Environment, Jilin University, Changchun 130021, China
| | - Dayi Zhang
- Key Laboratory of Groundwater Resources and Environment (Jilin University), Ministry of Education, Changchun 130021, China; College of New Energy and Environment, Jilin University, Changchun 130021, China.
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18
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Acute Adverse Effects of Metallic Nanomaterials on Cardiac and Behavioral Changes in Daphnia magna. ENVIRONMENTS 2022. [DOI: 10.3390/environments9020026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Nanomaterials are widely believed to induce toxic effects on organisms by evoking oxidative stress. We evaluated the toxic effects of nanomaterials on the cardiac and behavioral changes in Daphnia magna under varying exposure conditions. Titanium dioxide nanoparticles (TiO2 NPs), silver nanoparticles (AgNPs), and silver nitrate (AgNO3) were selected for the acute toxicity tests. The adverse effects of the substances on the neonates including heart rate, swimming speed, and oxidative stress were measured. The heart rate level decreased as the concentration of both NPs and silver ions (Ag+) increased. The average swimming speed was measured to be approximately 15 mm/min for the control group. The swimming speed generally increased with a longer exposure to both NPs although it reached a plateau at the lowest concentration of AgNPs. A similar but less clear trend was observed for Ag+. For all substances, the overall swimming speed exhibited no correlation or weak negative correlations with the exposure concentration. The oxidative stress levels increased after exposure compared with the control group. We conclude that aquatic nanotoxicity tests should consider multilevel physicochemical, physiological, and behavioral parameters for the official guidelines to quantify more robust adverse outcomes.
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19
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Sun J, Liu Z, Quan J, Li L, Zhao G, Lu J. Protective effects of different concentrations of selenium nanoparticles on rainbow trout (Oncorhynchus mykiss) primary hepatocytes under heat stress. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 230:113121. [PMID: 34968796 DOI: 10.1016/j.ecoenv.2021.113121] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 12/13/2021] [Accepted: 12/21/2021] [Indexed: 06/14/2023]
Abstract
Heat stress leads to altered expression of associated heat shock proteins (HSPs), which are critical molecular chaperones related to cellular function in living organisms. Selenium nanoparticles (SeNPs), a nanocomposite form of Se, have a protective effect against heat stress-induced cellular damage. In this study, primary rainbow trout hepatocytes were isolated to identify the protective function of SeNPs in rainbow trout hepatocytes. Experiments were divided into five groups and SeNPs were added at concentrations of 0, 2.0, 3.0, 5.0 and 8.0 μg/mL and incubated at 18 ℃ for 4, 8, 12, 24 and 48 h respectively. Hepatocyte viability, GSH-Px and SOD activity were enhanced and MDA content was reduced following the addition of SeNPs. Expression of GSH-P1 and genes related to HSPs (including HSP70a, HSP60, HSP90β, HSP10 and HSP47) were significantly increased and the optimal concentration of SeNPs for adding to hepatocytes was identified as 5.0 µg/mL. Adding 5.0 µg/mL SeNPs following heat stress (24 ℃) increased hepatocyte viability, GSH-Px and SOD activity, while MDA levels first decreased and then increased. Expression of GSH-P1 and genes related to HSPs (including HSP70a, HSP60, HSP90β, HSP10 and HSP47) were significantly higher than controls. In summary, SeNPs and slight heat stress synergistically enhanced the expression of GSH-P1 and HSPs and protected hepatocytes from heat stress damage, suggesting that SeNPs is a potential hepatocyte protective therapeutic agent.
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Affiliation(s)
- Jun Sun
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, PR China
| | - Zhe Liu
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, PR China.
| | - Jinqiang Quan
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, PR China
| | - Lanlan Li
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, PR China
| | - Guiyan Zhao
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, PR China
| | - Junhao Lu
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, PR China
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20
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May S, Hirsch C, Rippl A, Bürkle A, Wick P. Assessing Genotoxicity of Ten Different Engineered Nanomaterials by the Novel Semi-Automated FADU Assay and the Alkaline Comet Assay. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:220. [PMID: 35055238 PMCID: PMC8781421 DOI: 10.3390/nano12020220] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 12/09/2021] [Accepted: 01/07/2022] [Indexed: 01/16/2023]
Abstract
Increased engineered nanomaterial (ENM) production and incorporation in consumer and biomedical products has raised concerns about the potential adverse effects. The DNA damaging capacity is of particular importance since damaged genetic material can lead to carcinogenesis. Consequently, reliable and robust in vitro studies assessing ENM genotoxicity are of great value. We utilized two complementary assays based on different measurement principles: (1) comet assay and (2) FADU (fluorimetric detection of alkaline DNA unwinding) assay. Assessing cell viability ruled out false-positive results due to DNA fragmentation during cell death. Potential structure-activity relationships of 10 ENMs were investigated: three silica nanoparticles (SiO2-NP) with varying degrees of porosity, titanium dioxide (TiO2-NP), polystyrene (PS-NP), zinc oxide (ZnO-NP), gold (Au-NP), graphene oxide (GO) and two multi-walled carbon nanotubes (MWNT). SiO2-NPs, TiO2-NP and GO were neither cytotoxic nor genotoxic to Jurkat E6-I cells. Quantitative interference corrections derived from GO results can make the FADU assay a promising screening tool for a variety of ENMs. MWNT merely induced cytotoxicity, while dose- and time-dependent cytotoxicity of PS-NP was accompanied by DNA fragmentation. Hence, PS-NP served to benchmark threshold levels of cytotoxicity at which DNA fragmentation was expected. Considering all controls revealed the true genotoxicity for Au-NP and ZnO-NP at early time points.
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Affiliation(s)
- Sarah May
- Particles-Biology Interactions Lab, Swiss Federal Laboratories for Materials Science and Technology (EMPA), Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland; (S.M.); (C.H.); (A.R.)
- Molecular Toxicology Group, University of Konstanz, Universitätsstrasse 10, 78464 Konstanz, Germany;
| | - Cordula Hirsch
- Particles-Biology Interactions Lab, Swiss Federal Laboratories for Materials Science and Technology (EMPA), Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland; (S.M.); (C.H.); (A.R.)
| | - Alexandra Rippl
- Particles-Biology Interactions Lab, Swiss Federal Laboratories for Materials Science and Technology (EMPA), Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland; (S.M.); (C.H.); (A.R.)
| | - Alexander Bürkle
- Molecular Toxicology Group, University of Konstanz, Universitätsstrasse 10, 78464 Konstanz, Germany;
| | - Peter Wick
- Particles-Biology Interactions Lab, Swiss Federal Laboratories for Materials Science and Technology (EMPA), Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland; (S.M.); (C.H.); (A.R.)
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21
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Lin N, Verma D, Saini N, Arbi R, Munir M, Jovic M, Turak A. Antiviral nanoparticles for sanitizing surfaces: A roadmap to self-sterilizing against COVID-19. NANO TODAY 2021; 40:101267. [PMID: 34404999 PMCID: PMC8361009 DOI: 10.1016/j.nantod.2021.101267] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 07/05/2021] [Accepted: 08/08/2021] [Indexed: 05/13/2023]
Abstract
Nanoparticles provide new opportunities in merging therapeutics and new materials, with current research efforts just beginning to scratch the surface of their diverse benefits and potential applications. One such application, the use of inorganic nanoparticles in antiseptic coatings to prevent pathogen transmission and infection, has seen promising developments. Notably, the high reactive surface area to volume ratio and unique chemical properties of metal-based nanoparticles enables their potent inactivation of viruses. Nanoparticles exert their virucidal action through mechanisms including inhibition of virus-cell receptor binding, reactive oxygen species oxidation and destructive displacement bonding with key viral structures. The prevention of viral outbreaks is one of the foremost challenges to medical science today, emphasizing the importance of research efforts to develop nanoparticles for preventative antiviral applications. In this review, the use of nanoparticles to inactivate other viruses, such as influenza, HIV-1, or norovirus, among others, will be discussed to extrapolate broad-spectrum antiviral mechanisms that could also inhibit SARS-CoV-2 pathogenesis. This review analyzes the published literature to highlight the current state of knowledge regarding the efficacy of metal-based nanoparticles and other antiviral materials for biomedical, sterile polymer, and surface coating applications.
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Affiliation(s)
- Neil Lin
- Department of Engineering Physics, McMaster University, Hamilton, Canada
- Faculty of Health Science, McMaster University, Hamilton, Canada
| | - Daksh Verma
- Department of Engineering Physics, McMaster University, Hamilton, Canada
| | - Nikhil Saini
- Department of Engineering Physics, McMaster University, Hamilton, Canada
- W Booth School of Engineering Practice and Technology, McMaster University, Hamilton, Canada
| | - Ramis Arbi
- Department of Engineering Physics, McMaster University, Hamilton, Canada
| | - Muhammad Munir
- Department of Engineering Physics, McMaster University, Hamilton, Canada
| | | | - Ayse Turak
- Department of Engineering Physics, McMaster University, Hamilton, Canada
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22
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Airway Exposure to Polyethyleneimine Nanoparticles Induces Type 2 Immunity by a Mechanism Involving Oxidative Stress and ATP Release. Int J Mol Sci 2021; 22:ijms22169071. [PMID: 34445774 PMCID: PMC8396525 DOI: 10.3390/ijms22169071] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 08/19/2021] [Accepted: 08/20/2021] [Indexed: 11/16/2022] Open
Abstract
Polyethyleneimine (PEI) induced immune responses were investigated in human bronchial epithelial (hBE) cells and mice. PEI rapidly induced ATP release from hBE cells and pretreatment with glutathione (GSH) blocked the response. PEI activated two conductive pathways, VDAC-1 and pannexin 1, which completely accounted for ATP efflux across the plasma membrane. Moreover, PEI increased intracellular Ca2+ concentration ([Ca2+]i), which was reduced by the pannexin 1 inhibitor, 10Panx (50 μM), the VDAC-1 inhibitor, DIDS (100 μM), and was nearly abolished by pretreatment with GSH (5 mM). The increase in [Ca2+]i involved Ca2+ uptake through two pathways, one blocked by oxidized ATP (oATP, 300 μM) and another that was blocked by the TRPV-1 antagonist A784168 (100 nM). PEI stimulation also increased IL-33 mRNA expression and protein secretion. In vivo experiments showed that acute (4.5 h) PEI exposure stimulated secretion of Th2 cytokines (IL-5 and IL-13) into bronchoalveolar lavage (BAL) fluid. Conjugation of PEI with ovalbumin also induced eosinophil recruitment and secretion of IL-5 and IL-13 into BAL fluid, which was inhibited in IL-33 receptor (ST2) deficient mice. In conclusion, PEI-induced oxidative stress stimulated type 2 immune responses by activating ATP-dependent Ca2+ uptake leading to IL-33 secretion, similar to allergens derived from Alternaria.
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23
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Batiha GES, Alqarni M, Awad DAB, Algammal AM, Nyamota R, Wahed MII, Shah MA, Amin MN, Adetuyi BO, Hetta HF, Cruz-Martins N, Koirala N, Ghosh A, Echeverría J, Pagnossa JP, Sabatier JM. Dairy-Derived and Egg White Proteins in Enhancing Immune System Against COVID-19. Front Nutr 2021; 8:629440. [PMID: 34322507 PMCID: PMC8310913 DOI: 10.3389/fnut.2021.629440] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Accepted: 06/09/2021] [Indexed: 01/08/2023] Open
Abstract
Coronavirus disease (COVID-19) is a global health challenge, caused by the severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) triggers a plethora of respiratory disturbances and even multiple organs failure that can be fatal. Nutritional intervention is one of the key components toward to a proper management of COVID-19 patients, especially in those requiring medication, and should thus be considered the first-line treatment. Immuno-modulation and -stimulation are currently being explored in COVID-19 management and are gaining interest by food and pharmaceutical industries. Various dietary combinations, bioactive components, nutrients and fortified foods have been reported to modulate inflammation during disease progression. Dietary combinations of dairy-derived products and eggs are gaining an increasing attention given the huge immunomodulatory and anti-inflammatory properties attributed to some of their chemical constituents. Eggs are complex dietary components containing many essential nutrients and bioactive compounds as well as a high-quality proteins. Similarly, yogurts can replenish beneficial bacteria and contains macronutrients capable of stimulating immunity by enhancing cell immunity, reducing oxidative stress, neutralizing inflammation and regulating the intestinal barriers and gut microbiome. Thus, this review highlights the impact of nutritional intervention on COVID-19 management, focusing on the immunomodulatory and inflammatory effects of immune-enhancing nutrients.
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Affiliation(s)
- Gaber El-Saber Batiha
- Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicine, Damanhour University, Damanhour, Egypt
| | - Mohammed Alqarni
- Department of Pharmaceutical Chemistry, College of Pharmacy, Taif University, Taif, Saudi Arabia
| | - Dina A B Awad
- Department of Food Hygiene, Faculty of Veterinary Medicine, Benha University, Benha, Egypt
| | - Abdelazeem M Algammal
- Department of Bacteriology, Immunology, and Mycology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, Egypt
| | - Richard Nyamota
- Department of Biochemistry and Molecular Biology, Faculty of Science, Egerton University, Njoro, Kenya
| | - Mir I I Wahed
- Department of Pharmacy, University of Rajshahi, Rajshahi, Bangladesh
| | - Muhammad Ajmal Shah
- Department of Pharmacognosy, Faculty of Pharmaceutical Sciences, Government College University, Faisalabad, Pakistan
| | - Mohammad N Amin
- Department of Pharmacy, Atish Dipankar University of Science and Technology, Dhaka, Bangladesh.,Pratyasha Health Biomedical Research Center, Dhaka, Bangladesh
| | - Babatunde O Adetuyi
- Department of Natural Sciences, Faculty of Pure and Applied Sciences, Precious Cornerstone University, Ibadan, Nigeria
| | - Helal F Hetta
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Assiut University, Asyut, Egypt
| | - Natália Cruz-Martins
- Faculty of Medicine, University of Porto, Porto, Portugal.,Institute for Research and Innovation in Health (i3S), University of Porto, Porto, Portugal.,Laboratory of Neuropsychophysiology, Faculty of Psychology and Education Sciences, University of Porto, Porto, Portugal
| | - Niranjan Koirala
- Department of Natural Products Research, Dr. Koirala Research Institute for Biotechnology and Biodiversity, Kathmandu, Nepal.,Laboratory of Biotechnology, Faculty of Science and Technology, University of Macau, Taipa, Macau
| | - Arabinda Ghosh
- Microbiology Division, Department of Botany, Gauhati University, Guwahati, India
| | - Javier Echeverría
- Departamento de Ciencias del Ambiente, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | | | - Jean-Marc Sabatier
- Université Aix-Marseille, Institut de Neuro-Physiopathologie (INP), UMR 7051, Faculté de Pharmacie, Marseille, France
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Bibi H, Iqbal M, Wahab H, Öztürk M, Ke F, Iqbal Z, Khan MI, Alghanem SM. Green synthesis of multifunctional carbon coated copper oxide nanosheets and their photocatalytic and antibacterial activities. Sci Rep 2021; 11:10781. [PMID: 34031470 PMCID: PMC8196103 DOI: 10.1038/s41598-021-90207-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 05/07/2021] [Indexed: 12/03/2022] Open
Abstract
The studies of metal oxides in environmental remediation of chemical and biological pollutants are gaining colossal importance. Herein, we report the facile synthesis of multifunctional copper oxide nanosheets (CuO NS) using an aqueous extract of Rhazya stricta. The phytochemical investigation of R. stricta indicated the presence of saponins, tannins, and reducing sugars, responsible for the reduction and stabilization of CuO NS. A UV–Visible spectrophotometer initially confirmed the fabrication of CuO NS with specific Surface Plasmon Resonance at 294 nm. Field Emission Scanning Electron Microscopy (FE-SEM), Fourier-transform infrared spectroscopy FTIR, and XRD were further used to characterize the CuO NS. The obtained CuO NS were poly-dispersed with an average size of 20 nm. Interestingly these particles were aligned together in 3D cubical sheets layered above each other via self-assembly. The as-synthesized CuO NS showed enhanced antibacterial potential (17.63 mm, overall mean inhibition zone) in comparison to the known antibiotics (11.51 mm, overall mean inhibition zone) against both Solanaceous crop's wilt-causing bacteria (Ralstonia solanacearum and Clavibacter michiganensis). Furthermore, the appreciable photocatalytic potential of CuO NS has also been observed, causing 83% degradation of methylene blue (MB) upon solar irradiation. The synthesis methodology is devoid of any toxic waste or by-products. It could be used to produce eco-friendly CuO nanomaterial for industrial uses.
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Affiliation(s)
- Hamida Bibi
- Department of Soil and Environmental Sciences, The University of Agriculture, Peshawar, Pakistan
| | - Mudassar Iqbal
- Department of Agricultural Chemistry and Biochemistry, The University of Agriculture, Peshawar, Pakistan.
| | - Hassan Wahab
- Physics Division, Pakistan Institute of Nuclear Science and Technology, Nilore, Islamabad, Pakistan
| | - Mehmet Öztürk
- Department of Chemistry, Faculty of Sciences, Muğla Sıtkı Koçman University, Muğla, Turkey
| | - Fei Ke
- Department of Applied Chemistry and State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, People's Republic of China
| | - Zafar Iqbal
- Department of Agricultural Chemistry and Biochemistry, The University of Agriculture, Peshawar, Pakistan
| | - Muhammad Ishfaq Khan
- Department of Weed Science and Botany, The University of Agriculture, Peshawar, Pakistan
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25
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Galúcio JMP, de Souza SGB, Vasconcelos AA, Lima AKO, da Costa KS, de Campos Braga H, Taube PS. Synthesis, Characterization, Applications, and Toxicity of Green Synthesized Nanoparticles. Curr Pharm Biotechnol 2021; 23:420-443. [PMID: 34355680 DOI: 10.2174/1389201022666210521102307] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 02/25/2021] [Accepted: 03/16/2021] [Indexed: 11/22/2022]
Abstract
Nanotechnology is a cutting-edge area with numerous industrial applications. Nanoparticles are structures that have dimensions ranging from 1-100 nm which exhibit significantly different mechanical, optical, electrical, and chemical properties when compared with their larger counterparts. Synthetic routes that use natural sources, such as plant extracts, honey, and microorganisms are environmentally friendly and low-cost methods that can be used to obtain nanoparticles. These methods of synthesis generate products that are more stable and less toxic than those obtained using conventional methods. Nanoparticles formed by titanium dioxide, zinc oxide, silver, gold, and copper, as well as cellulose nanocrystals are among the nanostructures obtained by green synthesis that have shown interesting applications in several technological industries. Several analytical techniques have also been used to analyze the size, morphology, hydrodynamics, diameter, and chemical functional groups involved in the stabilization of the nanoparticles as well as to quantify and evaluate their formation. Despite their pharmaceutical, biotechnological, cosmetic, and food applications, studies have detected their harmful effects on human health and the environment; and thus, caution must be taken in uses involving living organisms. The present review aims to present an overview of the applications, the structural properties, and the green synthesis methods that are used to obtain nanoparticles, and special attention is given to those obtained from metal ions. The review also presents the analytical methods used to analyze, quantify, and characterize these nanostructures.
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Affiliation(s)
| | | | | | - Alan Kelbis Oliveira Lima
- Department of Genetics and Morphology, Institute of Biological Sciences, University of Brasilia, Brasília, Brazil
| | - Kauê Santana da Costa
- Institute of Biodiversity, Federal University of Western Pará, Santarém, Pará, Brazil
| | - Hugo de Campos Braga
- Institute of Science and Technology, Federal University of São Paulo, São José dos Campos, Brazil
| | - Paulo Sérgio Taube
- Institute of Biodiversity, Federal University of Western Pará, Santarém, Pará, Brazil
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Kamali Shahri SM, Sharifi S, Mahmoudi M. Interdependency of influential parameters in therapeutic nanomedicine. Expert Opin Drug Deliv 2021; 18:1379-1394. [PMID: 33887999 DOI: 10.1080/17425247.2021.1921732] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Introduction:Current challenges to successful clinical translation of therapeutic nanomedicine have discouraged many stakeholders, including patients. Significant effort has been devoted to uncovering the reasons behind the less-than-expected success, beyond failures or ineffectiveness, of therapeutic nanomedicine products (e.g. cancer nanomedicine). Until we understand and address the factors that limit the safety and efficacy of NPs, both individually and in combination, successful clinical development will lag.Areas covered:This review highlights the critical roles of interdependent factors affecting the safety and therapeutic efficacy of therapeutic NPs for drug delivery applications.Expert opinion:Deep analysis of the current nanomedical literature reveals ahistory of unanticipated complexity by awide range of stakeholders including researchers. In the manufacture of nanomedicines themselves, there have been persistent difficulties with reproducibility and batch-to-batch variation. The unanticipated complexity and interdependency of nano-bio parameters has delayed our recognition of important factors affecting the safety and therapeutic efficacy of nanomedicine products. These missteps have had many factors including our lack of understanding of the interdependency of various factors affecting the biological identity and fate of NPs and biased interpretation of data. All these issues could raise significant concern regarding the reproducibility- or even the validity- of past publications that in turn formed the basis of many clinical trials of therapeutic nanomedicines. Therefore, the individual and combined effects of previously overlooked factors on the safety and therapeutic efficacy of NPs need to be fully considered in nanomedicine reports and product development.
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Affiliation(s)
- Seyed Mehdi Kamali Shahri
- Department of Radiology and Precision Health Program, College of Human Medicine, Michigan State University, East Lansing, MI, USA
| | - Shahriar Sharifi
- Department of Radiology and Precision Health Program, College of Human Medicine, Michigan State University, East Lansing, MI, USA
| | - Morteza Mahmoudi
- Department of Radiology and Precision Health Program, College of Human Medicine, Michigan State University, East Lansing, MI, USA
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Rajivgandhi GN, Chenthis Kanisha C, Vijayakumar S, Alharbi NS, Kadaikunnan S, Khaled JM, Alanzi KF, Li WJ. Enhanced anti-biofilm activity of facile synthesized silver oxide nanoparticles against K. pneumoniae. J Inorg Organomet Polym Mater 2021. [DOI: 10.1007/s10904-021-02013-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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28
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Deng J, Ding QM, Jia MX, Li W, Zuberi Z, Wang JH, Ren JL, Fu D, Zeng XX, Luo JF. Biosafety risk assessment of nanoparticles: Evidence from food case studies. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 275:116662. [PMID: 33582638 DOI: 10.1016/j.envpol.2021.116662] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 12/21/2020] [Accepted: 02/02/2021] [Indexed: 05/04/2023]
Abstract
Nanotechnology provides a wide range of benefits in the food industry in improving food tastes, textures, sensations, quality, shelf life, and food safety. Recently, potential adverse effects such as toxicity and safety concerns have been associated with the increasing use of engineered nanoparticles in food industry. Additionally, very limited information is known concerning the behavior, properties and effects of food nano-materials in the gastrointestinal tract. There is explores the current advances and provides insights of the potential risks of nanoparticles in the food industry. Specifically, characteristics of food nanoparticles and their absorption in the gastrointestinal tract, the effects of food nanoparticles against the gastrointestinal microflora, and the potential toxicity mechanisms in different organs and body systems are discussed. This review would provide references for further investigation of nano-materials toxicity effect in foods and their molecular mechanisms. It will help to develop safer foods and expand nano-materials applications in safe manner.
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Affiliation(s)
- Jing Deng
- National Engineering Laboratory for Deep Process of Rice and Byproducts, Hunan Province Key Laboratory of Edible Forestry Resources Safety and Processing Utilization, Hunan Key Laboratory of Processed Food for Special Medical Purpose, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, Hunan, China; College of Packaging and Material Engineering, College of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou, 412007, China
| | - Quan Ming Ding
- College of Packaging and Material Engineering, College of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou, 412007, China
| | - Ming Xi Jia
- National Engineering Laboratory for Deep Process of Rice and Byproducts, Hunan Province Key Laboratory of Edible Forestry Resources Safety and Processing Utilization, Hunan Key Laboratory of Processed Food for Special Medical Purpose, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, Hunan, China
| | - Wen Li
- National Engineering Laboratory for Deep Process of Rice and Byproducts, Hunan Province Key Laboratory of Edible Forestry Resources Safety and Processing Utilization, Hunan Key Laboratory of Processed Food for Special Medical Purpose, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, Hunan, China; College of Packaging and Material Engineering, College of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou, 412007, China.
| | - Zavuga Zuberi
- Department of Science and Laboratory Technology, Dar Es Salaam Institute of Technology, P.O. Box 2958, Dar Es Salaam, Tanzania
| | - Jian Hui Wang
- School of Chemistry and Food Engineering, Changsha University of Science and Technology, Changsha, Hunan, 410114, China
| | - Jia Li Ren
- National Engineering Laboratory for Deep Process of Rice and Byproducts, Hunan Province Key Laboratory of Edible Forestry Resources Safety and Processing Utilization, Hunan Key Laboratory of Processed Food for Special Medical Purpose, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, Hunan, China
| | - Da Fu
- Central Laboratory for Medical Research, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Xiao Xi Zeng
- College of Packaging and Material Engineering, College of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou, 412007, China
| | - Jun Fei Luo
- National Engineering Laboratory for Deep Process of Rice and Byproducts, Hunan Province Key Laboratory of Edible Forestry Resources Safety and Processing Utilization, Hunan Key Laboratory of Processed Food for Special Medical Purpose, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, Hunan, China
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Polymerizable Matrix Metalloproteinases' Inhibitors with Potential Application for Dental Restorations. Biomedicines 2021; 9:biomedicines9040366. [PMID: 33807479 PMCID: PMC8065691 DOI: 10.3390/biomedicines9040366] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 03/19/2021] [Accepted: 03/26/2021] [Indexed: 12/21/2022] Open
Abstract
Collagen cleavage by matrix metalloproteinase (MMP) is considered a major cause of dental resins long term failure. Most MMP inhibitors display significant toxicity and are unsuitable for dental resins’ applications. Here we report a study of a new class of inhibitors that display the unique property of being co-polymerizable with other vinyl compounds present in commercial dental resins, limiting their release and potential toxicity. Computational affinity towards the active site of different MMP-1; -2; -8; -9 and -13 of several compounds showed interesting properties and were synthesized. These free compounds were tested concerning their toxicity upon contact with two different cell types, with no substantial decrease in cell viability at high concentrations. Even so, compound’s safety can be further improved upon copolymerization with commercial dental resins, limiting their release.
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30
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Keshavan S, Andón FT, Gallud A, Chen W, Reinert K, Tran L, Fadeel B. Profiling of Sub-Lethal in Vitro Effects of Multi-Walled Carbon Nanotubes Reveals Changes in Chemokines and Chemokine Receptors. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:883. [PMID: 33808372 PMCID: PMC8067081 DOI: 10.3390/nano11040883] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 03/19/2021] [Accepted: 03/26/2021] [Indexed: 12/30/2022]
Abstract
Engineered nanomaterials are potentially very useful for a variety of applications, but studies are needed to ascertain whether these materials pose a risk to human health. Here, we studied three benchmark nanomaterials (Ag nanoparticles, TiO2 nanoparticles, and multi-walled carbon nanotubes, MWCNTs) procured from the nanomaterial repository at the Joint Research Centre of the European Commission. Having established a sub-lethal concentration of these materials using two human cell lines representative of the immune system and the lungs, respectively, we performed RNA sequencing of the macrophage-like cell line after exposure for 6, 12, and 24 h. Downstream analysis of the transcriptomics data revealed significant effects on chemokine signaling pathways. CCR2 was identified as the most significantly upregulated gene in MWCNT-exposed cells. Using multiplex assays to evaluate cytokine and chemokine secretion, we could show significant effects of MWCNTs on several chemokines, including CCL2, a ligand of CCR2. The results demonstrate the importance of evaluating sub-lethal concentrations of nanomaterials in relevant target cells.
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Affiliation(s)
- Sandeep Keshavan
- Institute of Environmental Medicine, Karolinska Institute, 171 77 Stockholm, Sweden; (S.K.); (F.T.A.); (A.G.)
| | - Fernando Torres Andón
- Institute of Environmental Medicine, Karolinska Institute, 171 77 Stockholm, Sweden; (S.K.); (F.T.A.); (A.G.)
- IRCCS Istituto Clinico Humanitas, 20089 Rozzano, Milan, Italy
- Center for Research in Molecular Medicine & Chronic Diseases, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Audrey Gallud
- Institute of Environmental Medicine, Karolinska Institute, 171 77 Stockholm, Sweden; (S.K.); (F.T.A.); (A.G.)
- Department of Biology and Biological Engineering, Chalmers University of Technology, 412 96 Göteborg, Sweden
| | - Wei Chen
- Max Delbrück Center for Molecular Medicine, 10115 Berlin, Germany;
- Department of Biology, Southern University of Science and Technology, Shenzhen 518055, China
| | - Knut Reinert
- Department of Computer Science and Mathematics, Freie Universität Berlin, 14195 Berlin, Germany;
| | - Lang Tran
- Statistics and Toxicology Section, Institute of Occupational Medicine, Edinburgh EH14 4AP, UK;
| | - Bengt Fadeel
- Institute of Environmental Medicine, Karolinska Institute, 171 77 Stockholm, Sweden; (S.K.); (F.T.A.); (A.G.)
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Sangeetha VP, Smriti S, Solanki PR, Mohanan PV. Mechanism of action and cellular responses of HEK293 cells on challenge with zwitterionic carbon dots. Colloids Surf B Biointerfaces 2021; 202:111698. [PMID: 33773172 DOI: 10.1016/j.colsurfb.2021.111698] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 03/10/2021] [Accepted: 03/11/2021] [Indexed: 02/03/2023]
Abstract
Carbon, an extremely versatile element has great demand in the field of nanoscience. Carbon-based nanostructures are exponentially increased due to its wide range of applications in biotechnological and environmental approaches; hence, its safety assessment is of greater concern. In the present study, high quantum yielding zwitterionic carbon dots were synthesized, characterized and its safety assessment at different concentration ranges (50-1600 μgmL-1) on HEK 293 cells was carried out. Cellular, mitochondrial, lysosomal integrity and ROS generation were assessed using specific fluorochromes.The key cellular event apoptosis was assessed by annexinpropidium iodide staining using imaging flow cytometry. Moreover, the mRNA levels of the apoptotic genes were determined by real-time PCR. The results revealed that the cell viability assays (MTT, NR) and mitochondrial membrane potential were altered on exposure to a higher concentration of zwitterionic CDs for 24 h. Also, annexinpropidiumiodidestaining exhibited an increased percentage of apoptotic cells upon exposure to zwitterionic CDs at higher concentrations. Further, apoptosis was confirmed by significantlyincreased expression of pro-apoptotic gene (Bax) together with decreased expression of Bcl-2/Bax ratio. Collectively, this study suggests that zwitterionic CDs induce apoptosis in HEK 293 at higher concentration and the safe range for its intended application is found to be 50-200 μg/mL.
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Affiliation(s)
- V P Sangeetha
- Toxicology Division, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology (Govt. of India), Poojapura, Trivandrum 695 012, Kerala, India
| | - Sri Smriti
- Special Center for Nanoscience, Jawaharlal Nehru University, New Delhi 110067, India
| | - Pratima R Solanki
- Special Center for Nanoscience, Jawaharlal Nehru University, New Delhi 110067, India.
| | - P V Mohanan
- Toxicology Division, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology (Govt. of India), Poojapura, Trivandrum 695 012, Kerala, India.
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Migliaccio CT, Hamilton RF, Shaw PK, Rhoderick JF, Deb S, Bhargava R, Harkema JR, Holian A. Respiratory and systemic impacts following MWCNT inhalation in B6C3F1/N mice. Part Fibre Toxicol 2021; 18:16. [PMID: 33771183 PMCID: PMC7995731 DOI: 10.1186/s12989-021-00408-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 03/17/2021] [Indexed: 01/14/2023] Open
Abstract
Background A very pure multi-walled carbon nanotube (MWCNT) that was shown to have very low toxicity in vitro, was evaluated for lung and systemic effects and distribution following inhalation exposure. Methods B6C3F1/N mice were exposed to varying doses (0, 0.06, 0.2, and 0.6 mg/m3) of the (99.1% carbon) MWCNT by inhalation for 30 days (excluding weekends). Ten days following the last exposure, the lungs and spleen were harvested and processed for histology and immune cell population assessment. In addition, lung lavage cells and fluid were analyzed. Stimulated Raman scattering (SRS) was used to identify particles in the lungs, spleen, kidneys, liver, mediastinal and brachial lymph nodes, and olfactory bulb. Splenic tissue sections were stained with hematoxylin and eosin (H&E) for light microscopic histopathology assessment. Blood plasma was analyzed for cytokines and cathepsins. A section of the spleen was processed for RNA isolation and relative gene expression for 84 inflammation-related cytokines/chemokines. Results Following MWCNT exposure, particles were clearly evident in the lungs, spleens, lymph nodes and olfactory bulbs, (but not livers or kidneys) of exposed mice in a dose-dependent manner. Examination of the lavaged lung cells was unremarkable with no significant inflammation indicated at all particle doses. In contrast, histological examination of the spleen indicated the presence of apoptotic bodies within T cells regions of the white pulp area. Isolated splenic leukocytes had significant changes in various cells including an increased number of proinflammatory CD11b+Ly6C+ splenic cells. The gene expression studies confirmed this observation as several inflammation-related genes were upregulated particularly in the high dose exposure (0.6 mg/m3). Blood plasma evaluations showed a systemic down-regulation of inflammatory cytokines and a dose-dependent up-regulation of lysosomal cathepsins. Conclusions The findings in the lungs were consistent with our hypothesis that this MWCNT exposure would result in minimal lung inflammation and injury. However, the low toxicity of the MWCNT to lung macrophages may have contributed to enhanced migration of the MWCNT to the spleen through the lymph nodes, resulting in splenic toxicity and systemic changes in inflammatory mediators. Supplementary Information The online version contains supplementary material available at 10.1186/s12989-021-00408-z.
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Affiliation(s)
- Christopher T Migliaccio
- Department of Biomedical and Pharmaceutical Sciences, Center for Environmental Health Sciences, University of Montana, Missoula, MT, 59812, USA
| | - Raymond F Hamilton
- Department of Biomedical and Pharmaceutical Sciences, Center for Environmental Health Sciences, University of Montana, Missoula, MT, 59812, USA
| | - Pamela K Shaw
- Department of Biomedical and Pharmaceutical Sciences, Center for Environmental Health Sciences, University of Montana, Missoula, MT, 59812, USA
| | - Joseph F Rhoderick
- Department of Biomedical and Pharmaceutical Sciences, Center for Environmental Health Sciences, University of Montana, Missoula, MT, 59812, USA
| | - Sanghamitra Deb
- Department of Chemistry and Biochemistry, Alabama Analytical Research Center, University of Alabama, Tuscaloosa, AL, 35487, USA
| | - Rohit Bhargava
- Beckman Institute, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Jack R Harkema
- Department of Pathobiology and Diagnostic Investigation, Michigan State University, East Lansing, MI, 48824, USA
| | - Andrij Holian
- Department of Biomedical and Pharmaceutical Sciences, Center for Environmental Health Sciences, University of Montana, Missoula, MT, 59812, USA.
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FEAST of biosensors: Food, environmental and agricultural sensing technologies (FEAST) in North America. Biosens Bioelectron 2021; 178:113011. [PMID: 33517232 DOI: 10.1016/j.bios.2021.113011] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 01/04/2021] [Accepted: 01/16/2021] [Indexed: 02/08/2023]
Abstract
We review the challenges and opportunities for biosensor research in North America aimed to accelerate translational research. We call for platform approaches based on: i) tools that can support interoperability between food, environment and agriculture, ii) open-source tools for analytics, iii) algorithms used for data and information arbitrage, and iv) use-inspired sensor design. We summarize select mobile devices and phone-based biosensors that couple analytical systems with biosensors for improving decision support. Over 100 biosensors developed by labs in North America were analyzed, including lab-based and portable devices. The results of this literature review show that nearly one quarter of the manuscripts focused on fundamental platform development or material characterization. Among the biosensors analyzed for food (post-harvest) or environmental applications, most devices were based on optical transduction (whether a lab assay or portable device). Most biosensors for agricultural applications were based on electrochemical transduction and few utilized a mobile platform. Presently, the FEAST of biosensors has produced a wealth of opportunity but faces a famine of actionable information without a platform for analytics.
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A Salem S, S M Diab M, H Shehata S, N Soliman T. Nanochitosan Effect on Biomolecular, Hypolipidemic in Rats and Incorporation in Functional Yogurt. Pak J Biol Sci 2021; 24:548-561. [PMID: 34486330 DOI: 10.3923/pjbs.2021.548.561] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
<b>Background and Objective:</b> Chitosan has many functional properties and biological activities. This work aimed to prepare and characterize Chitosan Nanoparticles (CN). Then, evaluate the hypolipidemic and antioxidant effect of CN in rats. Incorporate CN in camel yogurt and evaluation of yogurt properties. <b>Materials and Methods:</b> Chitosan Nanoparticles (CN) were prepared and analyzed for the size, zeta potential and poly Polydispersity Index (PDI). Total 24 rats were divided into 4 groups, the negative control group was fed on the basal diet and the positive control group was fed on a High-Fat Diet (HFD), the group I and II were fed on the HFD+(CC) or (CN). The feeding period was 6 weeks. Prepared and Characterization stirred camel yogurt fortified by CN. <b>Results:</b> CN the size was 27.20 nm, ζ-potential+38.78. After the feeding period for CN and CC groups were a decrease in body weight, serum lipid profile and liver function in both tested groups and an increase in HDL-cholesterol and an increase in antioxidants in the CN group more than that in the CC group was observed. mRNA expression with qPCR for hepatic PPARγ, HL, GSS and CYP2E1 genes was performed to investigate the alterations in their levels after CN treatment on the liver of rats fed with HFD. <b>Conclusion:</b> CN possesses the ability to improve the impairment of lipid metabolism as strongly associated with gene expressions related to lipogenesis and oxidative stress. Also, the addition of 2% CN to camel yogurt gave sensory acceptable and microbiological quality.
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Nano-Fertilization as an Emerging Fertilization Technique: Why Can Modern Agriculture Benefit from Its Use? PLANTS 2020; 10:plants10010002. [PMID: 33375026 PMCID: PMC7822031 DOI: 10.3390/plants10010002] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 12/05/2020] [Accepted: 12/10/2020] [Indexed: 12/14/2022]
Abstract
There is a need for a more innovative fertilizer approach that can increase the productivity of agricultural systems and be more environmentally friendly than synthetic fertilizers. In this article, we reviewed the recent development and potential benefits derived from the use of nanofertilizers (NFs) in modern agriculture. NFs have the potential to promote sustainable agriculture and increase overall crop productivity, mainly by increasing the nutrient use efficiency (NUE) of field and greenhouse crops. NFs can release their nutrients at a slow and steady pace, either when applied alone or in combination with synthetic or organic fertilizers. They can release their nutrients in 40–50 days, while synthetic fertilizers do the same in 4–10 days. Moreover, NFs can increase the tolerance of plants against biotic and abiotic stresses. Here, the advantages of NFs over synthetic fertilizers, as well as the different types of macro and micro NFs, are discussed in detail. Furthermore, the application of NFs in smart sustainable agriculture and the role of NFs in the mitigation of biotic and abiotic stress on plants is presented. Though NF applications may have many benefits for sustainable agriculture, there are some concerns related to the release of nanoparticles (NPs) from NFs into the environment, with the subsequent detrimental effects that this could have on both human and animal health. Future research should explore green synthesized and biosynthesized NFs, their safe use, bioavailability, and toxicity concerns.
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Pollard KM. Perspective: The Lung, Particles, Fibers, Nanomaterials, and Autoimmunity. Front Immunol 2020; 11:587136. [PMID: 33391263 PMCID: PMC7775503 DOI: 10.3389/fimmu.2020.587136] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 11/17/2020] [Indexed: 12/11/2022] Open
Abstract
Studies have shown that a wide range of factors including drugs, chemicals, microbes, and other environmental agents can induce pre-clinical autoimmunity. However, only a few have been confidently linked to autoimmune diseases. Among these are exposures to inhaled particulates that are known to be associated with autoimmune diseases such as lupus and rheumatoid arthritis. In this article, the potential of particle, fiber, and nanomaterial exposures to induce autoimmunity is discussed. It is hypothesized that inhalation of particulate material known to be associated with human autoimmune diseases, such as cigarette smoke and crystalline silica, results in a complex interplay of a number of pathological processes, including, toxicity, oxidative stress, cell and tissue damage, chronic inflammation, post-translational modification of self-antigens, and the formation of lymphoid follicles that provide a milieu for the accumulation of autoreactive B and T cells necessary for the development and persistence of autoimmune responses, leading to disease. Although experimental studies show nanomaterials are capable of inducing several of the above features, there is no evidence that this matures to autoimmune disease. The procession of events hypothesized here provides a foundation from which to pursue experimental studies to determine the potential of other environmental exposures to induce autoimmunity and autoimmune disease.
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Affiliation(s)
- K Michael Pollard
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, United States
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Abstract
: Potential adverse health effects associated with exposure to engineered or synthesized nanomaterials have not been reported in humans; however, there is accumulating evidence from animal studies that exposure to some nanomaterials is harmful. While there is uncertainty as to the likelihood, frequency, and intensity of exposures experienced by those working around engineered nanoparticles, the American College of Occupational and Environmental Medicine has developed this guidance document for occupational medicine physicians and their colleagues to offer prudent preventive recommendations on the topics of exposure monitoring, exposure controls, and medical surveillance.
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Kusumoputro S, Tseng S, Tse J, Au C, Lau C, Wang X, Xia T. Potential nanoparticle applications for prevention, diagnosis, and treatment of COVID‐19. VIEW 2020. [DOI: 10.1002/viw.20200105] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Affiliation(s)
- Sydney Kusumoputro
- Department of Ecology and Evolutionary Biology University of California Los Angeles California USA
| | - Shannon Tseng
- Department of Ecology and Evolutionary Biology University of California Los Angeles California USA
| | - Jonathan Tse
- Department of Integrative Biology and Physiology University of California Los Angeles California USA
| | - Christian Au
- Department of Bioengineering University of California Los Angeles California USA
| | - Candice Lau
- Department of Molecular, Cell and Developmental Biology University of California Los Angeles California USA
| | - Xiang Wang
- Division of NanoMedicine Department of Medicine University of California Los Angeles California USA
| | - Tian Xia
- Division of NanoMedicine Department of Medicine University of California Los Angeles California USA
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Abdel-Hakeem EA, Abdel-Hamid HA, Abdel Hafez SMN. The possible protective effect of Nano-Selenium on the endocrine and exocrine pancreatic functions in a rat model of acute pancreatitis. J Trace Elem Med Biol 2020; 60:126480. [PMID: 32146341 DOI: 10.1016/j.jtemb.2020.126480] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 01/20/2020] [Accepted: 01/31/2020] [Indexed: 12/22/2022]
Abstract
BACKGROUND Acute pancreatitis is a serious condition with multi-factorial etiology. The negative impact of acute pancreatitis on the exocrine pancreatic function is well documented; however, its impact on the endocrine function needs more elucidation. Our study aimed to investigate the effect of Nano-Selenium (Nano-Se) on both pancreatic functions in acute pancreatitis. METHODS l-arginine induced acute pancreatitis in rats was used as a model. Fifty adult male albino rats were separated into groups: 1- control group (C), 2- C+ Nano-Se, 3-acute pancreatitis group (AP) and 4- AP+ Nano-Se. Nano-Se was administered before induction of acute pancreatitis. Serum levels of amylase, lipase, selenium, glucose, insulin and interleukin-1β (IL-1β) were measured. Homeostatic model assessment of beta cell function (HOMA-β) was also calculated. Oxidative stress markers, selenium content and the anti-apoptotic factor, B-cell leukemia/lymphoma-2 (Bcl-2) were assayed in pancreatic tissue along with immuno-expression of nuclear transcription factor-kappa B (NF-κB). RESULTS Acute pancreatitis negatively affected both pancreatic functions. Nano-Se administration lessened the developed pancreatic injury and improved both pancreatic functions. CONCLUSION Nano-Se could improve the deteriorated pancreatic functions in acute pancreatitis via its anti-inflammatory, antioxidant and pro-apoptotic actions. Thus, it may be used in prevention of acute pancreatitis and the associated hyperglycemia in vulnerable individuals such as patients undergoing endoscopic retrograde cholangio-pancreatography.
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Affiliation(s)
| | - Heba A Abdel-Hamid
- Medical Physiology Department, Faculty of Medicine, Minia University, Minia, 61111, Egypt.
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Lamas B, Martins Breyner N, Houdeau E. Impacts of foodborne inorganic nanoparticles on the gut microbiota-immune axis: potential consequences for host health. Part Fibre Toxicol 2020; 17:19. [PMID: 32487227 PMCID: PMC7268708 DOI: 10.1186/s12989-020-00349-z] [Citation(s) in RCA: 79] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Accepted: 05/11/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND In food toxicology, there is growing interest in studying the impacts of foodborne nanoparticles (NPs, originating from food additives, food supplements or food packaging) on the intestinal microbiome due to the important and complex physiological roles of these microbial communities in host health. Biocidal activities, as described over recent years for most inorganic and metal NPs, could favour chronic changes in the composition and/or metabolic activities of commensal bacteria (namely, intestinal dysbiosis) with consequences on immune functions. Reciprocally, direct interactions of NPs with the immune system (e.g., inflammatory responses, adjuvant or immunosuppressive properties) may in turn have effects on the gut microbiota. Many chronic diseases in humans are associated with alterations along the microbiota-immune system axis, such as inflammatory bowel diseases (IBD) (Crohn's disease and ulcerative colitis), metabolic disorders (e.g., obesity) or colorectal cancer (CRC). This raises the question of whether chronic dietary exposure to inorganic NPs may be viewed as a risk factor facilitating disease onset and/or progression. Deciphering the variety of effects along the microbiota-immune axis may aid the understanding of how daily exposure to inorganic NPs through various foodstuffs may potentially disturb the intricate dialogue between gut commensals and immunity, hence increasing the vulnerability of the host. In animal studies, dose levels and durations of oral treatment are key factors for mimicking exposure conditions to which humans are or may be exposed through the diet on a daily basis, and are needed for hazard identification and risk assessment of foodborne NPs. This review summarizes relevant studies to support the development of predictive toxicological models that account for the gut microbiota-immune axis. CONCLUSIONS The literature indicates that, in addition to evoking immune dysfunctions in the gut, inorganic NPs exhibit a moderate to extensive impact on intestinal microbiota composition and activity, highlighting a recurrent signature that favours colonization of the intestine by pathobionts at the expense of beneficial bacterial strains, as observed in IBD, CRC and obesity. Considering the long-term exposure via food, the effects of NPs on the gut microbiome should be considered in human health risk assessment, especially when a nanomaterial exhibits antimicrobial properties.
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Affiliation(s)
- Bruno Lamas
- INRAE Toxalim UMR 1331 (Research Center in Food Toxicology), Team Endocrinology and Toxicology of the Intestinal Barrier, INRAE, Toulouse University, ENVT, INP-Purpan, UPS, 180 Chemin de Tournefeuille, 31027, Toulouse cedex 3, France.
| | - Natalia Martins Breyner
- INRAE Toxalim UMR 1331 (Research Center in Food Toxicology), Team Endocrinology and Toxicology of the Intestinal Barrier, INRAE, Toulouse University, ENVT, INP-Purpan, UPS, 180 Chemin de Tournefeuille, 31027, Toulouse cedex 3, France
| | - Eric Houdeau
- INRAE Toxalim UMR 1331 (Research Center in Food Toxicology), Team Endocrinology and Toxicology of the Intestinal Barrier, INRAE, Toulouse University, ENVT, INP-Purpan, UPS, 180 Chemin de Tournefeuille, 31027, Toulouse cedex 3, France.
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Green synthesis of gold nanoparticles using extracellular metabolites of fish gut microbes and their antimicrobial properties. Braz J Microbiol 2020; 51:957-967. [PMID: 32424714 DOI: 10.1007/s42770-020-00263-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2019] [Accepted: 03/18/2020] [Indexed: 10/24/2022] Open
Abstract
In the present study, we synthesis nanoparticles using biosynthesis methods because of the eco-friendly approach. Gold nanoparticles were synthesized using extracellular metabolites of marine bacteria (Rastrelliger kanagurta, Selachimorpha sp., and Panna microdon). After the synthesis gold nanoparticles checked their antibacterial and antimycobacterial activities. Here we have few techniques that have been used for characterizing the gold nanoparticles followed by ultraviolet (UV)-visible spectrophotometer analysis, Fourier transform-infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscope (SEM), and transmission electron microscopy (TEM). We observed the formation of gold nanoparticles using UV-Vis spectroscopy (UV-Vis). FT-IR spectroscopy results of the extracellular metabolites showed that different characteristic functional groups are responsible for the bioreduction of gold ions. In the recent years, we used zebrafish for an animal model to estimate nanoparticle toxicity and biocompatibility. We tested toxicity of the gold nanoparticle using the zebrafish larvae that are growing exponentially. Sample 1 showed a good antimicrobial activity, and sample 5 showed a good antimycobacterial activity. Based on the UV spectrophotometer, sample 1 is used for further studies. Color change and UV spectrum confirmed gold nanoparticles. Based on the TEM and SEM particles, size was measured and ranged between 80 and 45 nm, and most of the particles are spherical and are in rod shape. XRD result showed the gold nanoparticles with crystalline nature. Toxicity studies in the zebrafish larvae showed that 50 μg ml-1 showed less toxicity. Based on the studies, gold nanoparticle has good antibacterial and antimycobacterial activities. The present was concluded that gold nanoparticles have potential biocompatibility and less toxicity. Gold nanoparticles will be used as a drug molecule in pharmaceutical company and biomedicine application.
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Pei X, Zhu Z, Gan Z, Chen J, Zhang X, Cheng X, Wan Q, Wang J. PEGylated nano-graphene oxide as a nanocarrier for delivering mixed anticancer drugs to improve anticancer activity. Sci Rep 2020; 10:2717. [PMID: 32066812 PMCID: PMC7026168 DOI: 10.1038/s41598-020-59624-w] [Citation(s) in RCA: 100] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 02/03/2020] [Indexed: 02/05/2023] Open
Abstract
Due to their high specific surface area, graphene oxide and graphene oxide-base nanoparticles have great potential both in dual-drug delivery and combination chemotherapy. Herein, we developed cisplatin (Pt) and doxorubicin (DOX) dual-drug-loaded PEGylated nano-graphene oxide (pGO) to facilitate combined chemotherapy in one system. In this study, nano-sized pGO-Pt/DOX ranged around 161.50 nm was fabricated and characterized using zeta-potential, AFM, TEM, Raman, UV-Vis, and FTIR analyses. The drug delivery efficacy of Pt was enhanced through the introduction of pGO, and the final weight ratio of DOX: Pt: pGO was optimized to 0.376: 0.376: 1. In vitro studies revealed that pGO-Pt/DOX nanoparticles could be effectively delivered into tumor cells, in which they induced prominent cell apoptosis and necrosis and exhibited higher growth inhibition than the single drug delivery system or free drugs. The pGO-Pt/DOX induced the most prominent cancer cell apoptosis and necrosis rate with 18.6%, which was observed almost 2 times higher than that of pGO-Pt or pGO-DOX groups. in the apoptosis and necrotic quadrants In vivo data confirmed that the pGO-Pt/DOX dual-drug delivery system attenuated the toxicity of Pt and DOX to normal organs compared to free drugs. The tumor inhibition data, histopathology observations, and immunohistochemical staining confirmed that the dual-drug delivery system presented a better anticancer effect than free drugs. These results clearly indicated that the pGO-Pt/DOX dual-drug delivery system provided the means for combination drug delivery in cancer treatment.
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Affiliation(s)
- Xibo Pei
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, China.
| | - Zhou Zhu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Zhoujie Gan
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Junyu Chen
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Xin Zhang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Xinting Cheng
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Qianbing Wan
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Jian Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, China.
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Pearce K, Goldsmith WT, Greenwald R, Yang C, Mainelis G, Wright C. Characterization of an aerosol generation system to assess inhalation risks of aerosolized nano-enabled consumer products. Inhal Toxicol 2019; 31:357-367. [PMID: 31779509 DOI: 10.1080/08958378.2019.1685613] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Objective: The aerosolization of common nano-enabled consumer products such as cosmetics has significantly increased engineered nanoparticle inhalation risks. While several studies have investigated the impact of cosmetic dermal exposures, inhalation hazards of aerosolized cosmetics are much less known but could pose considerable harm to users due to potential co-exposure of nanoparticles and other product components.Materials and Methods: In this study, we developed a fully automated aerosol generation system to examine the aerosol properties of four aerosolized nano-enabled cosmetics using real-time monitoring and sampling instrumentation. Physicochemical characterization of aerosols was conducted using scanning electron microscopy coupled with energy dispersive x-ray spectroscopy (SEM-EDX). Characterization and calibration of animal exposure pods coupled to the system were also performed by measuring and comparing particle concentrations between pods.Results and Discussion: Results show peak emissions are shade dependent and varied between 12,000-22,000 particles/cm3 with modal diameters ranging from 36 nm-1.3 µm. SEM-EDX analysis determined that the original products and collected aerosols have similar morphological features consisting of micron-sized particles decorated with nanoparticles and crystalline structures. Mean total particle concentration in pods at 5 and 10 mg/m3 target levels were 2.22E + 05 #/cm3 and 4.33E + 05 #/cm3, respectively, with <10% variability between pods.Conclusions: The fully automated exposure platform described herein provides reproducible aerosol generation, conforms to recommended guidelines on chemical testing, and therefore is suitable for future in vivo toxicological assessments to examine potential respiratory hazards of aerosolized nano-enabled consumer products.
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Affiliation(s)
- K Pearce
- Department of Population Health Sciences, School of Public Health, Georgia State University, Atlanta, GA, USA
| | - W T Goldsmith
- Department of Physiology and Pharmacology, West Virginia University, Morgantown, WV, USA.,Center for Inhalation Toxicology, West Virginia University, Morgantown, WV, USA
| | - R Greenwald
- Department of Population Health Sciences, School of Public Health, Georgia State University, Atlanta, GA, USA
| | - C Yang
- Institute for Electronics and Nanotechnology, Georgia Institute of Technology, Atlanta, GA, USA
| | - G Mainelis
- Department of Environmental Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ, USA
| | - C Wright
- Department of Population Health Sciences, School of Public Health, Georgia State University, Atlanta, GA, USA
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Deville S, Honrath B, Tran QTD, Fejer G, Lambrichts I, Nelissen I, Dolga AM, Salvati A. Time-resolved characterization of the mechanisms of toxicity induced by silica and amino-modified polystyrene on alveolar-like macrophages. Arch Toxicol 2019; 94:173-186. [PMID: 31677074 DOI: 10.1007/s00204-019-02604-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 10/23/2019] [Indexed: 12/21/2022]
Abstract
Macrophages play a major role in the removal of foreign materials, including nano-sized materials, such as nanomedicines and other nanoparticles, which they accumulate very efficiently. Because of this, it is recognized that for a safe development of nanotechnologies and nanomedicine, it is essential to investigate potential effects induced by nano-sized materials on macrophages. To this aim, in this work, a recently established model of primary murine alveolar-like macrophages was used to investigate macrophage responses to two well-known nanoparticle models: 50 nm amino-modified polystyrene, known to induce cell death via lysosomal damage and apoptosis in different cell types, and 50 nm silica nanoparticles, which are generally considered non-toxic. Then, a time-resolved study was performed to characterize in detail the response of the macrophages following exposure to the two nanoparticles. As expected, exposure to the amino-modified polystyrene led to cell death, but surprisingly no lysosomal swelling or apoptosis were detected. On the contrary, a peculiar mitochondrial membrane hyperpolarization was observed, accompanied by endoplasmic reticulum stress (ER stress), increased cellular reactive oxygen species (ROS) and changes of metabolic activity, ultimately leading to cell death. Strong toxic responses were observed also after exposure to silica, which included mitochondrial ROS production, mitochondrial depolarization and cell death by apoptosis. Overall, these results showed that exposure to the two nanoparticles led to a very different series of intracellular events, suggesting that the macrophages responded differently to the two nanoparticle models. Similar time-resolved studies are required to characterize the response of macrophages to nanoparticles, as a key parameter in nanosafety assessment.
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Affiliation(s)
- Sarah Deville
- Department Pharmacokinetics, Toxicology and Targeting, Groningen Research Institute of Pharmacy, University of Groningen, A. Deusinglaan 1, 9713 AV, Groningen, The Netherlands
- Health Department, Flemish Institute for Technological Research, Mol, Belgium
- Biomedical Research Institute, Hasselt University, Diepenbeek, Belgium
| | - Birgit Honrath
- Department of Molecular Pharmacology, Groningen Research Institute of Pharmacy, University of Groningen, Groningen, The Netherlands
| | - Quynh T D Tran
- Department Pharmacokinetics, Toxicology and Targeting, Groningen Research Institute of Pharmacy, University of Groningen, A. Deusinglaan 1, 9713 AV, Groningen, The Netherlands
| | - Gyorgy Fejer
- School of Biomedical Sciences, Faculty of Medicine and Dentistry, Plymouth University, Derriford Research Facility, Plymouth, UK
| | - Ivo Lambrichts
- Biomedical Research Institute, Hasselt University, Diepenbeek, Belgium
| | - Inge Nelissen
- Health Department, Flemish Institute for Technological Research, Mol, Belgium
| | - Amalia M Dolga
- Department of Molecular Pharmacology, Groningen Research Institute of Pharmacy, University of Groningen, Groningen, The Netherlands
| | - Anna Salvati
- Department Pharmacokinetics, Toxicology and Targeting, Groningen Research Institute of Pharmacy, University of Groningen, A. Deusinglaan 1, 9713 AV, Groningen, The Netherlands.
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The Influence of Available Cu and Au Nanoparticles (NPs) on the Survival of Water Fleas (Daphnia pulex). INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16193617. [PMID: 31561619 PMCID: PMC6801461 DOI: 10.3390/ijerph16193617] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 09/10/2019] [Accepted: 09/24/2019] [Indexed: 02/01/2023]
Abstract
Applications of nanotechnologies in different sectors and everyday items are very promising and their popularity continues to grow. The number of products containing nanoparticles makes environmental exposure to nanoparticles inevitable. The current understanding of the relationships between nanoparticles and the environment is inadequate despite the fast growth of nanotechnologies. The aim of the study was to investigate the influence of copper and gold nanoparticles on Daphnia pulex survival. Our study included 48-h acute toxicity tests and determination of median lethal concentration values (LC50s) for Cu-NPs and Au-NPs. For nano-copper, 24 h LC50 was assumed > 1 mg/L, and 48 h LC50 = 0.5117 mg/L. For nano-gold the LC50 value after 24 h was 0.4027 mg/L, and after 48 h 0.1007 mg/L. The toxicity of nano -gold solutions was thus found to be higher than that of nano-copper. The addition of Cu-NPs at 0.0625 mg/L and 0.125 mg/L caused an increased multiplication of daphnia, while Au-NPs at 1 mg/L was an inhibitor of reproduction.
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Rajagopalan S, Al-Kindi SG, Brook RD. Air Pollution and Cardiovascular Disease: JACC State-of-the-Art Review. J Am Coll Cardiol 2019; 72:2054-2070. [PMID: 30336830 DOI: 10.1016/j.jacc.2018.07.099] [Citation(s) in RCA: 645] [Impact Index Per Article: 129.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 07/25/2018] [Accepted: 07/31/2018] [Indexed: 12/13/2022]
Abstract
Fine particulate matter <2.5 μm (PM2.5) air pollution is the most important environmental risk factor contributing to global cardiovascular (CV) mortality and disability. Short-term elevations in PM2.5 increase the relative risk of acute CV events by 1% to 3% within a few days. Longer-term exposures over several years increase this risk by a larger magnitude (∼10%), which is partially attributable to the development of cardiometabolic conditions (e.g., hypertension and diabetes mellitus). As such, ambient PM2.5 poses a major threat to global public health. In this review, the authors provide an overview of air pollution and health, including assessment of exposure, impact on CV outcomes, mechanistic underpinnings, and impact of air pollution reduction strategies to mitigate CV risk. The review concludes with future challenges, including the inextricable link between air pollution and climate change, and calls for large-scale trials to allow the promulgation of formal evidence-based recommendations to lower air pollution-induced health risks.
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Affiliation(s)
- Sanjay Rajagopalan
- Harrington Heart and Vascular Institute, University Hospitals, Cleveland, Ohio; Case Cardiovascular Research Institute, Case Western Reserve University, Cleveland, Ohio.
| | - Sadeer G Al-Kindi
- Harrington Heart and Vascular Institute, University Hospitals, Cleveland, Ohio
| | - Robert D Brook
- Michigan Medicine, Division of Cardiovascular Medicine, University of Michigan, Ann Arbor, Michigan
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Esmeray E, Özata O. Nanopartiküllerin Çevre Mühendisliğinde Kullanımı ve Temel Laboratuvar Malzemeleri ile Gümüş Nanopartikül (AgNPs) Sentezi. ACTA ACUST UNITED AC 2019. [DOI: 10.31590/ejosat.570308] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Gasbarri C, Ruggieri F, Foschi M, Aceto A, Scotti L, Angelini G. Simple Determination of Silver Nanoparticles Concentration as Ag
+
by Using ISE as Potential Alternative to ICP Optical Emission Spectrometry. ChemistrySelect 2019. [DOI: 10.1002/slct.201902336] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Carla Gasbarri
- Department of PharmacyUniversity “G. d'Annunzio” of Chieti-Pescara Via dei Vestini 66100 Chieti Italy
| | - Fabrizio Ruggieri
- Department of Chemical and Physical SciencesUniversity of L'Aquila Via Vetoio 67010 Coppito, L'Aquila Italy
| | - Martina Foschi
- Department of Chemical and Physical SciencesUniversity of L'Aquila Via Vetoio 67010 Coppito, L'Aquila Italy
| | - Antonio Aceto
- Department of MedicalOral and Biotechnological SciencesUniversity “G. d'Annunzio” of Chieti-Pescara Via dei Vestini 66100 Chieti Italy
| | - Luca Scotti
- Department of MedicalOral and Biotechnological SciencesUniversity “G. d'Annunzio” of Chieti-Pescara Via dei Vestini 66100 Chieti Italy
| | - Guido Angelini
- Department of PharmacyUniversity “G. d'Annunzio” of Chieti-Pescara Via dei Vestini 66100 Chieti Italy
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Wang D, Wang P, Wang C, Ao Y. Effects of interactions between humic acid and heavy metal ions on the aggregation of TiO 2 nanoparticles in water environment. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 248:834-844. [PMID: 30856499 DOI: 10.1016/j.envpol.2019.02.084] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 02/05/2019] [Accepted: 02/24/2019] [Indexed: 06/09/2023]
Abstract
Nanoparticles (NPs), heavy metal and natural organic matter (NOM) may simultaneously exist in the aquatic environment, where they will affect the behavior of each other and may enhance their toxicities. Studies on the influences of interactions between NOM and heavy metal ions on the behavior of NPs are scarce. In this study, combined effects of Pb2+ and HA on the aggregation behavior of TiO2 NPs in water environment were investigated by Dynamic light scattering (DLS) and Nanoparticle tracking analysis (NTA). The results illustrated that interactions between Pb2+ and HA could case the aggregation of TiO2 NPs obviously. The concurrence of Pb2+ and HA resulted in decreased critical coagulation concentration (CCC) and increased attachment efficiencies. Meanwhile, we found that the addition sequences of HA and heavy metal clearly influenced the aggregation kinetics of TiO2 NPs. At different addition sequences, the complex reaction between Pb2+ and HA changed the surface charge of TiO2 NPs, and caused the different aggregation behavior which depended on the complex locations and complex sites. Furthermore, the excitation-emission-matrix (EEM) fluorescence spectra was used to verify the significant effects of the complex interactions between Pb2+ and HA on the aggregation of TiO2 NPs. Our results would be significant for interpreting TiO2 behavior in the complicated water system. The complexation between Pb2+ and HA promoted the aggregation of TiO2 NPs, meanwhile, complex locations and complex sites played an important role.
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Affiliation(s)
- Dongxu Wang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, No.1, Xikang Road, Nanjing, 210098, China
| | - Peifang Wang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, No.1, Xikang Road, Nanjing, 210098, China
| | - Chao Wang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, No.1, Xikang Road, Nanjing, 210098, China
| | - Yanhui Ao
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, No.1, Xikang Road, Nanjing, 210098, China.
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