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Perumalsamy H, Balusamy SR, Sukweenadhi J, Nag S, MubarakAli D, El-Agamy Farh M, Vijay H, Rahimi S. A comprehensive review on Moringa oleifera nanoparticles: importance of polyphenols in nanoparticle synthesis, nanoparticle efficacy and their applications. J Nanobiotechnology 2024; 22:71. [PMID: 38373982 PMCID: PMC10877787 DOI: 10.1186/s12951-024-02332-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 02/07/2024] [Indexed: 02/21/2024] Open
Abstract
Moringa oleifera is one of the popular functional foods that has been tremendously exploited for synthesis of a vast majority of metal nanoparticles (NPs). The diverse secondary metabolites present in this plant turn it into a green tool for synthesis of different NPs with various biological activities. In this review, we discussed different types of NPs including silver, gold, titanium oxide, iron oxide, and zinc oxide NPs produced from the extract of different parts of M. oleifera. Different parts of M. oleifera take a role as the reducing, stabilizing, capping agent, and depending on the source of extract, the color of solution changes within NP synthesis. We highlighted the role of polyphenols in the synthesis of NPs among major constituents of M. oleifera extract. The different synthesis methods that could lead to the formation of various sizes and shapes of NPs and play crucial role in biomedical application were critically discussed. We further debated the mechanism of interaction of NPs with various sizes and shapes with the cells, and further their clearance from the body. The application of NPs made from M. oleifera extract as anticancer, antimicrobial, wound healing, and water treatment agent were also discussed. Small NPs show better antimicrobial activity, while they can be easily cleared from the body through the kidney. In contrast, large NPs are taken by the mono nuclear phagocyte system (MPS) cells. In case of shape, the NPs with spherical shape penetrate into the bacteria, and show stronger antibacterial activity compared to the NPs with other shapes. Finally, this review aims to correlate the key characteristics of NPs made from M. oleifera extract, such as size and shape, to their interactions with the cells for designing and engineering them for bio-applications and especially for therapeutic purposes.
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Affiliation(s)
- Haribalan Perumalsamy
- Institute for Next Generation Material Design, Hanyang University, Seoul, Republic of Korea.
- Center for Creative Convergence Education, Hanyang University, Seoul, Republic of Korea.
- Department of Chemistry, College of Natural Sciences, Hanyang University, Seoul, Republic of Korea.
| | - Sri Renukadevi Balusamy
- Department of Food Science and Biotechnology, Sejong University, Gwangjin-Gu, Seoul, 05006, Republic of Korea.
| | - Johan Sukweenadhi
- Faculty of Biotechnology, University of Surabaya, Surabaya, 60293, Indonesia
| | - Sagnik Nag
- Pharmacology Unit, Jeffrey Cheah School of Medicine and Health Sciences (JCSMHS), Monash University Malaysia, 47500, Bandar Sunway, Selangor Darul Ehsan, Malaysia
| | - Davoodbasha MubarakAli
- School of Life Sciences, B.S. Abdur Rahman Crescent Institute of Science and Technology, Chennai, Tamil Nadu, India
| | - Mohamed El-Agamy Farh
- Department of Radiation Oncology, College of Medicine, Yonsei University, Seoul, South Korea
| | - Hari Vijay
- Global Health Research, Saveetha Medical College, Saveetha Institute of Medical and Technical Sciences, Chennai, India
| | - Shadi Rahimi
- Division of Systems and Synthetic Biology, Department of Life Sciences, Chalmers University of Technology, Gothenburg, Sweden.
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Klimek-Szczykutowicz M, Gaweł-Bęben K, Rutka A, Blicharska E, Tatarczak-Michalewska M, Kulik-Siarek K, Kukula-Koch W, Malinowska MA, Szopa A. Moringa oleifera (drumstick tree)-nutraceutical, cosmetological and medicinal importance: a review. Front Pharmacol 2024; 15:1288382. [PMID: 38370483 PMCID: PMC10869624 DOI: 10.3389/fphar.2024.1288382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 01/05/2024] [Indexed: 02/20/2024] Open
Abstract
Moringa oleifera Lam. (Moringaceae) is a species of tree with an increasing utility, occurring naturally mainly in Pakistan and northern India. M. oleifera is currently cultivated in Africa, South America, Asia and the Middle East. The usage of its leaves, seed oil, bark, fruits, flowers and roots has positive opinions of FDA (American Food and Drug Administration), EFSA (European Food Safety Authority) and CosIng (Cosmetic Ingredients database). The chemical composition of M. oleifera is dominated by: proteins (consisting mainly of amino acids such as arginine or serine), fatty acids (omega-3 and omega-6), vitamins (vitamin A, B and C and tocopherols), mineral salts (including several bioelements, such as calcium, magnesium, sodium, and potassium), valuable polyphenolic compounds from the group of phenolic acids (e.g., gallic acid, ferulic acid) and flavonoids (e.g., myricetin, rutoside, and kaempferol). The raw materials show antioxidant, hepatoprotective, anti-inflammatory and antimicrobial properties. Dietary supplements and alimentary products containing M. oleifera are recommended as health-promoting and "novel food" preparations. The main purpose of this work was a review of the latest scientific literature on M. oleifera, with particular emphasis on the studies focusing on its chemical composition, biological activity and safety. Moreover, the review tends to discuss the results of biotechnological studies using this material and the agronomical significance.
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Affiliation(s)
| | - Katarzyna Gaweł-Bęben
- Department of Cosmetology, University of Information Technology and Management in Rzeszów, Rzeszów, Poland
| | - Angelika Rutka
- Chair and Department of Pharmaceutical Botany, Faculty of Pharmacy, Medical College, Jagiellonian University, Cracow, Poland
| | - Eliza Blicharska
- Department of Pathobiochemistry and Interdisciplinary Applications of Ion Chromatography, Biomedical Sciences, Medical University of Lublin, Lublin, Poland
| | - Małgorzata Tatarczak-Michalewska
- Department of Pathobiochemistry and Interdisciplinary Applications of Ion Chromatography, Biomedical Sciences, Medical University of Lublin, Lublin, Poland
| | - Katarzyna Kulik-Siarek
- Department of Pharmaceutical Sciences, Collegium Medicum, Jan Kochanowski University, Kielce, Poland
| | - Wirginia Kukula-Koch
- Department of Pharmacognosy with Medicinal Plants Garden, Medical University of Lublin, Lublin, Poland
| | - Magdalena Anna Malinowska
- Department of Organic Chemistry and Technology, Faculty of Chemical Engineering and Technology, Cracow University of Technology, Cracow, Poland
| | - Agnieszka Szopa
- Chair and Department of Pharmaceutical Botany, Faculty of Pharmacy, Medical College, Jagiellonian University, Cracow, Poland
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Zhang X, Sun X, Guo C, Li J, Liang G. Cancer-associated fibroblast-associated gene IGFBP2 promotes glioma progression through induction of M2 macrophage polarization. Am J Physiol Cell Physiol 2024; 326:C252-C268. [PMID: 37982173 DOI: 10.1152/ajpcell.00234.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 11/13/2023] [Accepted: 11/13/2023] [Indexed: 11/21/2023]
Abstract
We elucidated the molecular mechanism of cancer-associated fibroblast (CAF)-associated gene insulin-like growth factor binding protein-2 (IGFBP2)-induced M2 macrophage polarization in the tumor microenvironment involved in glioma progression. The Cancer Genome Atlas (TCGA) and Chinese Glioma Genome Atlas (CGGA) provided bulk RNA-sequencing datasets, ESTIMATE scores for glioma stromal cells, and overall survival-clinicopathological correlation analyses. TIMER provided CAF abundance in the TCGA glioma-related dataset, differential gene analysis was performed for high- and low-CAF groups, and weighted gene coexpression network analysis identified CAF-related genes. Univariate and multifactorial cyclooxygenase (COX) regression analyses created the CAF risk models single sample gene set enrichment analysis, CIBERSORT, and GSE84465. Mice were implanted with gliomas, and Western blot and RT-quantitative PCR showed IGFBP2 in tumor tissues. Adeno-associated virus (AAV) decreased IGFBP2, flow cytometry measured M1 and M2 macrophage ratios, and immunohistochemistry detected markers. TCGA and CGGA transcriptome data showed malignant gliomas had higher stromal cell scores and worse prognoses. Low- and high-CAF TCGA gliomas were detected, and differential expression, WGCNA, and multifactorial COX identified 132 CAF-related genes and seven high-risk genes (CPQ, EFEMP2, IGFBP2, RAB42, TNFRSF12A, and VASN). Neither CAF risk score, grade, nor 1p/19q affected glioma prognosis. CAF only enriched EFEMP2 and IGFBP2. Gene Expression Profiling Interactive Analysis compared EFEMP2 and IGFBP2 expression in normal brain tissue and gliomas. Low-grade glioma and malignant glioblastoma highly expressed IGFBP2 and EFEMP2. GSEA raised IGFBP2. CIBERSORT linked M2 macrophage infiltration to TCGA glioma immune cell subpopulation IGFBP2 expression. IGFBP2 knockdown stopped mouse glioma and M2 macrophage polarization. CAF plays a procarcinogenic role in glioma, and the CAF-related gene IGFBP2 could promote glioma progression by inducing M2 macrophage polarization.NEW & NOTEWORTHY The cancer-associated fibroblast (CAF)-related gene insulin-like growth factor binding protein-2 (IGFBP2) is highly expressed in gliomas and is associated with poor prognosis. CAF-related gene IGFBP2 promotes glioma progression by inducing polarization of M2 macrophages. This study provides a new basis for an in-depth investigation of the functional mechanisms of the glioma tumor microenvironment and the search for key genes involved in immune regulation in CAF.
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Affiliation(s)
- Xiaobin Zhang
- Department of Neurosurgery, General Hospital of the Northern Theater Command of Chinese People's Liberation Army, Shenyang, China
| | - Xiaolin Sun
- Department of Radiation, Affiliated Central Hospital of Shenyang Medical College, Shenyang, China
| | - Chen Guo
- Department of Neurosurgery, General Hospital of the Northern Theater Command of Chinese People's Liberation Army, Shenyang, China
| | - Jianan Li
- Department of Neurosurgery, General Hospital of the Northern Theater Command of Chinese People's Liberation Army, Shenyang, China
| | - Guobiao Liang
- Department of Neurosurgery, General Hospital of the Northern Theater Command of Chinese People's Liberation Army, Shenyang, China
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Joseph TM, Al-Hazmi HE, Śniatała B, Esmaeili A, Habibzadeh S. Nanoparticles and nanofiltration for wastewater treatment: From polluted to fresh water. ENVIRONMENTAL RESEARCH 2023; 238:117114. [PMID: 37716387 DOI: 10.1016/j.envres.2023.117114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 09/01/2023] [Accepted: 09/09/2023] [Indexed: 09/18/2023]
Abstract
Water pollution poses significant threats to both ecosystems and human health. Mitigating this issue requires effective treatment of domestic wastewater to convert waste into bio-fertilizers and gas. Neglecting liquid waste treatment carries severe consequences for health and the environment. This review focuses on intelligent technologies for water and wastewater treatment, targeting waterborne diseases. It covers pollution prevention and purification methods, including hydrotherapy, membrane filtration, mechanical filters, reverse osmosis, ion exchange, and copper-zinc cleaning. The article also highlights domestic purification, field techniques, heavy metal removal, and emerging technologies like nanochips, graphene, nanofiltration, atmospheric water generation, and wastewater treatment plants (WWTPs)-based cleaning. Emphasizing water cleaning's significance for ecosystem protection and human health, the review discusses pollution challenges and explores the integration of wastewater treatment, coagulant processes, and nanoparticle utilization in management. It advocates collaborative efforts and innovative research for freshwater preservation and pollution mitigation. Innovative biological systems, combined with filtration, disinfection, and membranes, can elevate recovery rates by up to 90%, surpassing individual primary (<10%) or biological methods (≤50%). Advanced treatment methods can achieve up to 95% water recovery, exceeding UN goals for clean water and sanitation (Goal 6). This progress aligns with climate action objectives and safeguards vital water-rich habitats (Goal 13). The future holds promise with advanced purification techniques enhancing water quality and availability, underscoring the need for responsible water conservation and management for a sustainable future.
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Affiliation(s)
- Tomy Muringayil Joseph
- Department of Polymer Technology, Faculty of Chemistry, Gdańsk University of Technology, G. Narutowicza 11/12 80-233, Gdańsk, Poland
| | - Hussein E Al-Hazmi
- Gdansk University of Technology, Faculty of Civil and Environmental Engineering, Narutowicza 11/12, 80-233 Gdansk, Poland.
| | - Bogna Śniatała
- Gdansk University of Technology, Faculty of Civil and Environmental Engineering, Narutowicza 11/12, 80-233 Gdansk, Poland
| | - Amin Esmaeili
- Department of Chemical Engineering, School of Engineering Technology, and Industrial Trades, College of the North Atlantic-Qatar, Doha, Qatar
| | - Sajjad Habibzadeh
- Surface Reaction and Advanced Energy Materials Laboratory, Chemical Engineering Department, Amirkabir University of Technology, Tehran 1599637111, Iran.
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Badawi AK, Salama RS, Mostafa MMM. Natural-based coagulants/flocculants as sustainable market-valued products for industrial wastewater treatment: a review of recent developments. RSC Adv 2023; 13:19335-19355. [PMID: 37377880 PMCID: PMC10291875 DOI: 10.1039/d3ra01999c] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 06/13/2023] [Indexed: 06/29/2023] Open
Abstract
Industrial wastewater is categorized as a voracious consumer of fresh water and a high-strength source of pollution. Coagulation-flocculation is a simple and cost-effective technique for removing organic/inorganic compounds and colloidal particles from industrial effluents. Despite the outstanding natural properties, biodegradability, and efficacy of natural coagulants/flocculants (NC/Fs) in industrial wastewater treatment, their significant potential to remediate such effluents is underappreciated, particularly in commercial scale applications. Most reviews on NC/Fs focused on the possible application of plant-based sources such as plant seeds, tannin, certain vegetables/fruit peels, and their lab-scale potential. Our review expands the scope by examining the feasibility of using natural materials from other sources for industrial effluent decontamination. By analyzing the latest data on NC/Fs, we identify the most promising preparation techniques for making these materials stable enough to compete with traditional options in the marketplace. An interesting presentation of the results of various recent studies has also been highlighted and discussed. Additionally, we highlight the recent success of using magnetic-natural coagulants/flocculants (M-NC/Fs) in treating diverse industrial effluents, and discuss the potential for reprocessing spent materials as a renewable resource. The review also offers different concepts for suggested large-scale treatment systems used by MN-CFs.
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Affiliation(s)
- Ahmad K Badawi
- Civil Engineering Department, El-Madina Higher Institute for Engineering and Technology Giza 12588 Egypt
| | - Reda S Salama
- Basic Science Department, Faculty of Engineering, Delta University for Science and Technology Gamasa Egypt
| | - Mohamed Mokhtar M Mostafa
- Chemistry Department, Faculty of Science, King Abdulaziz University P.O. Box 80203 Jeddah 21589 Saudi Arabia
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Oliveira AMD, Anjos Szczerepa MMD, Bronharo Tognim MC, Abreu Filho BAD, Cardozo-Filho L, Gomes RG, Bergamasco R. Moringa oleifera seed oil extracted by pressurized n-propane and its effect against Staphylococcus aureus biofilms. ENVIRONMENTAL TECHNOLOGY 2023; 44:1083-1098. [PMID: 34704544 DOI: 10.1080/09593330.2021.1994653] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 10/06/2021] [Indexed: 06/13/2023]
Abstract
Staphylococcus aureus is often associated worldwide with foodborne illnesses, and the elimination of biofilms formed by this bacterium from industrial surfaces is very challenging. To date, there have been few attempts to investigate plant oils obtained by recent green technologies, applied against biofilms on usual surfaces of the food industry and bacteria isolated from such environment. Therefore, this study evaluated the activity of Moringa oleifera seed oil (MOSO), extracted with pressurized n-propane, against standard and environmental S. aureus biofilms. Additionally, a genotypic and phenotypic study of the environmental S. aureus was proposed. It was found that this bacterium was a MSSA (methicillin-sensitive S. aureus), a carrier of icaA and icaD genes that has strong adhesion (OD550=1.86 ± 0.19) during biofilm formation. The use of pressurized n-propane as a solvent was efficient in obtaining MOSO, achieving a yield of 60.9%. Gas chromatography analyses revealed the presence of a rich source of fatty acids in MOSO, mainly oleic acid (62.47%), behenic acid (10.5%) and palmitic acid (7.32%). On polystyrene surface, MOSO at 0.5% and 1% showed inhibitory and bactericidal activity, respectively, against S. aureus biofilms. MOSO at 1% allowed a maximum reduction of 2.38 log UFC/cm² of S. aureus biofilms formed on PVC (polyvinyl chloride) surface. Scanning electron microscopy showed disturbances on the surface of S. aureus after exposure to MOSO. These unprecedented findings suggest that MOSO extracted with pressurized n-propane is potentially capable of inhibiting biofilms of different S. aureus strains, thus, contributing to microbiological safety during food processing.
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Affiliation(s)
| | | | | | | | - Lúcio Cardozo-Filho
- Department of Chemical Engineering, State University of Maringa, Maringa, Brazil
| | | | - Rosângela Bergamasco
- Department of Chemical Engineering, State University of Maringa, Maringa, Brazil
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Ao B, Lv J, Yang H, He F, Hu Y, Hu B, Jiang H, Huo X, Tu J, Xia X. Moringa oleifera extract mediated the synthesis of Bio-SeNPs with antibacterial activity against Listeria monocytogenes and Corynebacterium diphtheriae. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.113751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Ghimire S, Subedi L, Acharya N, Gaire BP. Moringa oleifera: A Tree of Life as a Promising Medicinal Plant for Neurodegenerative Diseases. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:14358-14371. [PMID: 34843254 DOI: 10.1021/acs.jafc.1c04581] [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] [Indexed: 06/13/2023]
Abstract
Moringa oleifera, popularly known as a miracle tree or tree of life, has been extensively used as a functional food and nutritional asset worldwide. Ethnomedicinal and traditional uses of M. oleifera indicate that this plant might have a pleiotropic therapeutic efficacy against most human ailments. In fact, M. oleifera is reported to have several pharmacological activities, including antioxidant, antibacterial, antifungal, antidiabetic, antipyretic, antiulcer, antispasmodic, antihypertensive, antitumor, hepatoprotective, and cardiac stimulant properties. Recently, a few experimental studies reported the neuroprotective effects of M. oleifera against Alzheimer's disease, dementia, Parkinson's disease, stroke, and neurotoxicity-related symptoms. In addition, several neuroprotective phytochemicals have been isolated from M. oleifera, which signifies that it can have promising neuroprotective effects. Therefore, this review aimed to explore the current updates and future prospective of neuroprotective efficacies of M. oleifera.
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Affiliation(s)
- Saurav Ghimire
- Department of Neuroscience, Institute of Neurodegenerative Diseases (IMN), University of Bordeaux, 33076 Bordeaux, France
| | - Lalita Subedi
- Department of Anesthesiology and Neurology, Shock Trauma and Anesthesiology Research Center, University of Maryland School of Medicine, Baltimore, Maryland 21201, United States
| | - Namrata Acharya
- Department of Animal Physiology, Institute of Biology, Leipzig University, 04103 Leipzig, Germany
| | - Bhakta Prasad Gaire
- Department of Anesthesiology and Neurology, Shock Trauma and Anesthesiology Research Center, University of Maryland School of Medicine, Baltimore, Maryland 21201, United States
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Ewunkem AJ, Rodgers L, Campbell D, Staley C, Subedi K, Boyd S, Graves JL. Experimental Evolution of Magnetite Nanoparticle Resistance in Escherichia coli. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:790. [PMID: 33808798 PMCID: PMC8003623 DOI: 10.3390/nano11030790] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 03/10/2021] [Accepted: 03/14/2021] [Indexed: 02/07/2023]
Abstract
Both ionic and nanoparticle iron have been proposed as materials to control multidrug-resistant (MDR) bacteria. However, the potential bacteria to evolve resistance to nanoparticle bacteria remains unexplored. To this end, experimental evolution was utilized to produce five magnetite nanoparticle-resistant (FeNP1-5) populations of Escherichia coli. The control populations were not exposed to magnetite nanoparticles. The 24-h growth of these replicates was evaluated in the presence of increasing concentrations magnetite NPs as well as other ionic metals (gallium III, iron II, iron III, and silver I) and antibiotics (ampicillin, chloramphenicol, rifampicin, sulfanilamide, and tetracycline). Scanning electron microscopy was utilized to determine cell size and shape in response to magnetite nanoparticle selection. Whole genome sequencing was carried out to determine if any genomic changes resulted from magnetite nanoparticle resistance. After 25 days of selection, magnetite resistance was evident in the FeNP treatment. The FeNP populations also showed a highly significantly (p < 0.0001) greater 24-h growth as measured by optical density in metals (Fe (II), Fe (III), Ga (III), Ag, and Cu II) as well as antibiotics (ampicillin, chloramphenicol, rifampicin, sulfanilamide, and tetracycline). The FeNP-resistant populations also showed a significantly greater cell length compared to controls (p < 0.001). Genomic analysis of FeNP identified both polymorphisms and hard selective sweeps in the RNA polymerase genes rpoA, rpoB, and rpoC. Collectively, our results show that E. coli can rapidly evolve resistance to magnetite nanoparticles and that this result is correlated resistances to other metals and antibiotics. There were also changes in cell morphology resulting from adaptation to magnetite NPs. Thus, the various applications of magnetite nanoparticles could result in unanticipated changes in resistance to both metal and antibiotics.
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Affiliation(s)
- Akamu J. Ewunkem
- Department of Nanoscience, University of North Carolina at Greensboro, Greensboro, NC 27401, USA;
| | - LaShunta Rodgers
- Department of Biology, University of North Carolina at Greensboro, Greensboro, NC 27412, USA;
| | - Daisha Campbell
- Department of Chemical, Biological, and Bioengineering, North Carolina A&T State University, Greensboro, NC 27411, USA;
| | - Constance Staley
- Department of Chemistry, Bennett College, Greensboro, NC 27401, USA;
| | - Kiran Subedi
- College of Agricultural and Environmental Sciences (CAES), North Carolina A&T State University, Greensboro, NC 27411, USA;
| | - Sada Boyd
- Department of Ecology and Evolutionary Biology, University of California, Los Angeles, CA 90095, USA;
| | - Joseph L. Graves
- Department of Biology, North Carolina A&T State University, Greensboro, NC 27411, USA
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