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Hassan MG, Hawwa MT, Baraka DM, El-Shora HM, Hamed AA. Biogenic selenium nanoparticles and selenium/chitosan-Nanoconjugate biosynthesized by Streptomyces parvulus MAR4 with antimicrobial and anticancer potential. BMC Microbiol 2024; 24:21. [PMID: 38216871 PMCID: PMC10785380 DOI: 10.1186/s12866-023-03171-7] [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: 05/07/2023] [Accepted: 12/22/2023] [Indexed: 01/14/2024] Open
Abstract
BACKGROUND As antibiotics and chemotherapeutics are no longer as efficient as they once were, multidrug resistant (MDR) pathogens and cancer are presently considered as two of the most dangerous threats to human life. In this study, Selenium nanoparticles (SeNPs) biosynthesized by Streptomyces parvulus MAR4, nano-chitosan (NCh), and their nanoconjugate (Se/Ch-nanoconjugate) were suggested to be efficacious antimicrobial and anticancer agents. RESULTS SeNPs biosynthesized by Streptomyces parvulus MAR4 and NCh were successfully achieved and conjugated. The biosynthesized SeNPs were spherical with a mean diameter of 94.2 nm and high stability. Yet, Se/Ch-nanoconjugate was semispherical with a 74.9 nm mean diameter and much higher stability. The SeNPs, NCh, and Se/Ch-nanoconjugate showed significant antimicrobial activity against various microbial pathogens with strong inhibitory effect on their tested metabolic key enzymes [phosphoglucose isomerase (PGI), pyruvate dehydrogenase (PDH), glucose-6-phosphate dehydrogenase (G6PDH) and nitrate reductase (NR)]; Se/Ch-nanoconjugate was the most powerful agent. Furthermore, SeNPs revealed strong cytotoxicity against HepG2 (IC50 = 13.04 μg/ml) and moderate toxicity against Caki-1 (HTB-46) tumor cell lines (IC50 = 21.35 μg/ml) but low cytotoxicity against WI-38 normal cell line (IC50 = 85.69 μg/ml). Nevertheless, Se/Ch-nanoconjugate displayed substantial cytotoxicity against HepG2 and Caki-1 (HTB-46) with IC50 values of 11.82 and 7.83 μg/ml, respectively. Consequently, Se/Ch-nanoconjugate may be more easily absorbed by both tumor cell lines. However, it exhibited very low cytotoxicity on WI-38 with IC50 of 153.3 μg/ml. Therefore, Se/Ch-nanoconjugate presented the most anticancer activity. CONCLUSION The biosynthesized SeNPs and Se/Ch-nanoconjugate are convincingly recommended to be used in biomedical applications as versatile and potent antimicrobial and anticancer agents ensuring notable levels of biosafety, environmental compatibility, and efficacy.
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Affiliation(s)
- Mervat G Hassan
- Botany and Microbiology Department, Faculty of Science, Benha University, P. O. Box 13511, Banha, Qalyubia, Egypt
| | - Mariam T Hawwa
- Botany and Microbiology Department, Faculty of Science, Benha University, P. O. Box 13511, Banha, Qalyubia, Egypt
| | - Dina M Baraka
- Botany and Microbiology Department, Faculty of Science, Benha University, P. O. Box 13511, Banha, Qalyubia, Egypt
| | - Hamed M El-Shora
- Botany Department, Faculty of Science, Mansoura University, P. O. Box 35516, Mansoura, Dakahliaو, Egypt
| | - Ahmed A Hamed
- Microbial Chemistry Department, National Research Centre, 33 El-Buhouth Street, P. O. Box 12622, Giza, Dokki, Egypt.
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Nowruzi B, Jalil BS, Metcalf JS. Antifungal screening of selenium nanoparticles biosynthesized by microcystin-producing Desmonostoc alborizicum. BMC Biotechnol 2023; 23:41. [PMID: 37759248 PMCID: PMC10538242 DOI: 10.1186/s12896-023-00807-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 08/28/2023] [Indexed: 09/29/2023] Open
Abstract
Metal nanoparticles exhibit excellent antifungal abilities and are seen as a good substitute for controlling different kinds of fungi. Of all known taxa, cyanobacteria have received significant consideration as nanobiofactories, as a result of the cellular assimilation of heavy metals from the environment. The cellular bioactive enzymes, polysaccharides and pigments can be used as reducers and coatings during biosynthesis. The probability of the antifungal activity of selenium nanoparticles (SeNPs) to prevent plant fungi that can affect humans was evaluated and a toxic Iranian cyanobacterial strain of Desmonostoc alborizicum was used to study the biotechnology of SeNP synthesis for the first time. Characterization of nanoparticles with a UV-Vis spectrophotometer showed the formation of SeNPs in the range of 271-275 nm with the appearance of an orange color. Morphological examination of nanoparticles with Transmission Electron Microscopy (TEM), revealed the spherical shape of nanoparticles. The results of X-Ray Diffraction (XRD) showed 7 peaks and a hexagonal structure of average crystal size equal to 58.8 nm. The dispersion index of SeNPs was reported as 0.635, which indicated the homogeneity of the nanoparticle droplet size. The zeta potential of the nanoparticles was + 22.7. Fourier-transform infrared spectroscopy (FTIR) analysis exhibited a sharp and intense peak located at the wave number of 404 cm- 1, related to the SeNPs synthesized in this research. The results of the antifungal activity of SeNPs showed among the investigated fungi, Pythium ultimum had the highest resistance to SeNPs (14.66 ± 0.52 µg/ml), while Alternaria alternata showed the highest sensitivity (9.66 ± 0.51 µg/ml) (p < 0.05). To the best of our knowledge this is the first report concerning the characterization and antifungal screening of SeNPs biosynthesized by Iranian cyanobacteria, which could be used as effective candidates in medical applications.
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Affiliation(s)
- Bahareh Nowruzi
- Department of Biotechnology, Faculty of Converging Sciences and Technologies, Science and Research Branch, Islamic Azad University, Tehran city, Iran.
| | - Bilal Saad Jalil
- Iraqi ministry of higher education and scientific research, Karbala University, Karbala city, Iraq
| | - James S Metcalf
- Department of Biological Sciences, Bowling Green State University, Bowling Green city, OH, 43403, USA
- Brain Chemistry Labs, Box 3464, Jackson, WY, 83001 city, USA
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3
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Zambonino MC, Quizhpe EM, Mouheb L, Rahman A, Agathos SN, Dahoumane SA. Biogenic Selenium Nanoparticles in Biomedical Sciences: Properties, Current Trends, Novel Opportunities and Emerging Challenges in Theranostic Nanomedicine. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:424. [PMID: 36770385 PMCID: PMC9921003 DOI: 10.3390/nano13030424] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Revised: 01/15/2023] [Accepted: 01/17/2023] [Indexed: 06/18/2023]
Abstract
Selenium is an important dietary supplement and an essential trace element incorporated into selenoproteins with growth-modulating properties and cytotoxic mechanisms of action. However, different compounds of selenium usually possess a narrow nutritional or therapeutic window with a low degree of absorption and delicate safety margins, depending on the dose and the chemical form in which they are provided to the organism. Hence, selenium nanoparticles (SeNPs) are emerging as a novel therapeutic and diagnostic platform with decreased toxicity and the capacity to enhance the biological properties of Se-based compounds. Consistent with the exciting possibilities offered by nanotechnology in the diagnosis, treatment, and prevention of diseases, SeNPs are useful tools in current biomedical research with exceptional benefits as potential therapeutics, with enhanced bioavailability, improved targeting, and effectiveness against oxidative stress and inflammation-mediated disorders. In view of the need for developing eco-friendly, inexpensive, simple, and high-throughput biomedical agents that can also ally with theranostic purposes and exhibit negligible side effects, biogenic SeNPs are receiving special attention. The present manuscript aims to be a reference in its kind by providing the readership with a thorough and comprehensive review that emphasizes the current, yet expanding, possibilities offered by biogenic SeNPs in the biomedical field and the promise they hold among selenium-derived products to, eventually, elicit future developments. First, the present review recalls the physiological importance of selenium as an oligo-element and introduces the unique biological, physicochemical, optoelectronic, and catalytic properties of Se nanomaterials. Then, it addresses the significance of nanosizing on pharmacological activity (pharmacokinetics and pharmacodynamics) and cellular interactions of SeNPs. Importantly, it discusses in detail the role of biosynthesized SeNPs as innovative theranostic agents for personalized nanomedicine-based therapies. Finally, this review explores the role of biogenic SeNPs in the ongoing context of the SARS-CoV-2 pandemic and presents key prospects in translational nanomedicine.
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Affiliation(s)
- Marjorie C. Zambonino
- School of Biological Sciences and Engineering, Yachay Tech University, Hacienda San José s/n, San Miguel de Urcuquí 100119, Ecuador
| | - Ernesto Mateo Quizhpe
- School of Biological Sciences and Engineering, Yachay Tech University, Hacienda San José s/n, San Miguel de Urcuquí 100119, Ecuador
| | - Lynda Mouheb
- Laboratoire de Recherche de Chimie Appliquée et de Génie Chimique, Hasnaoua I, Université Mouloud Mammeri, BP 17 RP, Tizi-Ouzou 15000, Algeria
| | - Ashiqur Rahman
- Center for Midstream Management and Science, Lamar University, 211 Redbird Ln., Beaumont, TX 77710, USA
| | - Spiros N. Agathos
- Earth and Life Institute, Catholic University of Louvain, B-1348 Louvain-la-Neuve, Belgium
| | - Si Amar Dahoumane
- Department of Chemical Engineering, Polytechnique Montréal, C.P. 6079, Succ. Centre-Ville, Montréal, QC H3C 3A7, Canada
- Department of Chemistry and Biochemistry, Université de Moncton, 18, Ave Antonine-Maillet, Moncton, NB E1A 3E9, Canada
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Prasathkumar M, Sakthivel C, Becky R, Dhrisya C, Prabha I, Sadhasivam S. Phytofabrication of cost-effective selenium nanoparticles from edible and non-edible plant materials of Senna auriculata: Characterization, antioxidant, antidiabetic, antimicrobial, biocompatibility, and wound healing. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120337] [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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5
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Dana P, Pimpha N, Chaipuang A, Thumrongsiri N, Tanyapanyachon P, Taweechaipaisankul A, Chonniyom W, Watcharadulyarat N, Sathornsumetee S, Saengkrit N. Inhibiting Metastasis and Improving Chemosensitivity via Chitosan-Coated Selenium Nanoparticles for Brain Cancer Therapy. NANOMATERIALS 2022; 12:nano12152606. [PMID: 35957037 PMCID: PMC9370598 DOI: 10.3390/nano12152606] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 07/20/2022] [Accepted: 07/25/2022] [Indexed: 02/05/2023]
Abstract
Selenium nanoparticles (SeNPs) were synthesized to overcome the limitations of selenium, such as its narrow safe range and low water solubility. SeNPs reduce the toxicity and improve the bioavailability of selenium. Chitosan-coated SeNPs (Cs-SeNPs) were developed to further stabilize SeNPs and to test their effects against glioma cells. The effects of Cs-SeNPs on cell growth were evaluated in monolayer and 3D-tumor spheroid culture. Cell migration and cell invasion were determined using a trans-well assay. The effect of Cs-SeNPs on chemotherapeutic drug 5-fluorouracil (5-FU) sensitivity of glioma cells was determined in tumor spheroids. An in vitro blood–brain barrier (BBB) model was established to test the permeability of Cs-SeNPs. SeNPs and Cs-SeNPs can reduce the cell viability of glioma cells in a dose-dependent manner. Compared with SeNPs, Cs-SeNPs more strongly inhibited 3D-tumor spheroid growth. Cs-SeNPs exhibited stronger effects in inhibiting cell migration and cell invasion than SeNPs. Improved 5-FU sensitivity was observed in Cs-SeNP-treated cells. Cellular uptake in glioma cells indicated a higher uptake rate of coumarin-6-labeled Cs-SeNPs than SeNPs. The capability of coumarin-6 associated Cs-SeNPs to pass through the BBB was confirmed. Taken together, Cs-SeNPs provide exceptional performance and are a potential alternative therapeutic strategy for future glioma treatment.
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Affiliation(s)
- Paweena Dana
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand; (P.D.); (N.P.); (A.C.); (N.T.); (P.T.); (A.T.); (W.C.); (N.W.)
| | - Nuttaporn Pimpha
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand; (P.D.); (N.P.); (A.C.); (N.T.); (P.T.); (A.T.); (W.C.); (N.W.)
| | - Angkana Chaipuang
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand; (P.D.); (N.P.); (A.C.); (N.T.); (P.T.); (A.T.); (W.C.); (N.W.)
| | - Nutthanit Thumrongsiri
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand; (P.D.); (N.P.); (A.C.); (N.T.); (P.T.); (A.T.); (W.C.); (N.W.)
| | - Prattana Tanyapanyachon
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand; (P.D.); (N.P.); (A.C.); (N.T.); (P.T.); (A.T.); (W.C.); (N.W.)
| | - Anukul Taweechaipaisankul
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand; (P.D.); (N.P.); (A.C.); (N.T.); (P.T.); (A.T.); (W.C.); (N.W.)
| | - Walailuk Chonniyom
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand; (P.D.); (N.P.); (A.C.); (N.T.); (P.T.); (A.T.); (W.C.); (N.W.)
| | - Natsorn Watcharadulyarat
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand; (P.D.); (N.P.); (A.C.); (N.T.); (P.T.); (A.T.); (W.C.); (N.W.)
| | - Sith Sathornsumetee
- Research Network NANOTEC-Mahidol University in Theranostic Nanomedicine, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Wanglang Road, Bangkoknoi, Bangkok 10700, Thailand;
- Department of Medicine (Neurology), Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Wanglang Road, Bangkoknoi, Bangkok 10700, Thailand
| | - Nattika Saengkrit
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand; (P.D.); (N.P.); (A.C.); (N.T.); (P.T.); (A.T.); (W.C.); (N.W.)
- Correspondence: ; Tel.: +66-2117-6558
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6
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Tan J, Tang H, Xu Q, Zheng Y, Su D, He S, Zeng Q, Yuan Y. The Formation of Egg White
Polypeptide‐Selenium
complex particles: Mechanism, Stability and Functional Properties. Int J Food Sci Technol 2022. [DOI: 10.1111/ijfs.15976] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Jin‐Chao Tan
- School of Chemistry and Chemical Engineering Guangzhou University Guangzhou 510006 PR China
| | - Hong‐Yan Tang
- School of Chemistry and Chemical Engineering Guangzhou University Guangzhou 510006 PR China
| | - Qing‐Ling Xu
- School of Chemistry and Chemical Engineering Guangzhou University Guangzhou 510006 PR China
| | - Ying‐Min Zheng
- School of Chemistry and Chemical Engineering Guangzhou University Guangzhou 510006 PR China
| | - Dong‐Xiao Su
- School of Chemistry and Chemical Engineering Guangzhou University Guangzhou 510006 PR China
| | - Shan He
- School of Chemistry and Chemical Engineering Guangzhou University Guangzhou 510006 PR China
| | - Qing‐Zhu Zeng
- School of Chemistry and Chemical Engineering Guangzhou University Guangzhou 510006 PR China
| | - Yang Yuan
- School of Chemistry and Chemical Engineering Guangzhou University Guangzhou 510006 PR China
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7
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Meenambigai K, Kokila R, Chandhirasekar K, Thendralmanikandan A, Kaliannan D, Ibrahim KS, Kumar S, Liu W, Balasubramanian B, Nareshkumar A. Green Synthesis of Selenium Nanoparticles Mediated by Nilgirianthus ciliates Leaf Extracts for Antimicrobial Activity on Foodborne Pathogenic Microbes and Pesticidal Activity Against Aedes aegypti with Molecular Docking. Biol Trace Elem Res 2022; 200:2948-2962. [PMID: 34431069 DOI: 10.1007/s12011-021-02868-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 08/03/2021] [Indexed: 11/27/2022]
Abstract
The present study deals with the synthesis of selenium nanoparticles (SeNPs) using Nilgirianthus ciliatus leaf extracts, characterized by UV-Vis spectrophotometer, XRD, FTIR, FE-SEM, HR-TEM, DLS, and zeta potential analysis. The antimicrobial activity against Staphylococcus aureus (MTCC96), Escherichia coli (MTCC443), and Salmonella typhi (MTCC98) showed the remarkable inhibitory effect at 25 µl/mL concentration level. Furthermore, the characterized SeNPs showed a great insecticidal activity against Aedes aegypti in the early larval stages with the median Lethal Concentration (LC50) of 0.92 mg/L. Histopathological observations of the SeNPs treated midgut and caeca regions of Ae. aegypti 4th instar larvae showed damaged epithelial layer and fragmented peritrophic membrane. In order to provide a mechanistic approach for further studies, molecular docking studies using Auto Dock Vina were performed with compounds of N. ciliatus within the active site of AeSCP2. Overall, the N. ciliates leaf-mediated biogenic SeNPs was promisingly evidenced to have potential larvicidal and food pathogenic bactericidal activity in an eco-friendly approach.
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Affiliation(s)
- Krishnan Meenambigai
- Department of Zoology, School of Life Sciences, Periyar University, Salem, 636011, India
| | - Ranganathan Kokila
- Department of Zoology, School of Life Sciences, Periyar University, Salem, 636011, India
| | | | | | - Durairaj Kaliannan
- Department of Environmental Science, School of Life Sciences, Periyar University, Salem, 636 011, India
| | - Kalibulla Syed Ibrahim
- PG and Research Department of Botany, PSG College of Arts & Science, Coimbatore, 641 014, Tamil Nadu, India
| | - Shobana Kumar
- Department of Zoology, Sri GVG Visalakshi College for Women, Udumalpet, Tamil Nadu, India
| | - Wenchao Liu
- Department of Animal Science, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, 524088, People's Republic of China
| | | | - Arjunan Nareshkumar
- Department of Zoology, School of Life Sciences, Periyar University, Salem, 636011, India.
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8
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Abdel-Moneim AME, El-Saadony MT, Shehata AM, Saad AM, Aldhumri SA, Ouda SM, Mesalam NM. Antioxidant and antimicrobial activities of Spirulina platensis extracts and biogenic selenium nanoparticles against selected pathogenic bacteria and fungi. Saudi J Biol Sci 2022; 29:1197-1209. [PMID: 35197787 PMCID: PMC8848030 DOI: 10.1016/j.sjbs.2021.09.046] [Citation(s) in RCA: 75] [Impact Index Per Article: 37.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 08/13/2021] [Accepted: 09/13/2021] [Indexed: 12/14/2022] Open
Abstract
This study investigated the antimicrobial and antioxidant activity of three Spirulina extracts (methanol, acetone, and hexane) and the biological selenium nanoparticles (SeNPs) fabricated by Bacillus subtilis AL43. The results showed that Spirulina extracts exhibited antimicrobial activity against tested pathogens. Besides, Spirulina extracts significantly scavenged ABTS and DPPH radicals in a dose-dependent manner. The methanolic extract had higher total phenolic content, antimicrobial activity, and antioxidant activity than other extracts. The selenium nanoparticles were synthesized by Bacillus subtilis AL43 under aerobic conditions and were characterized as spherical, crystalline with a size of 65.23 nm and a net negative charge of −22.7. We evidenced that SeNPs possess considerable antimicrobial activity against three gram-positive, three gram-negative bacteria, and three strains from both Candida sp. and Aspergillus sp. Moreover, SeNPs were able to scavenge ABTS and DPPH radicals in a dose-dependent manner. An association was found between the total phenolic content of Spirulina and SeNPs and their biological activities. Our results indicate that Spirulina and SeNPs with significant antimicrobial and antioxidant activities seem to be successful candidates for safe and reliable medical applications.
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Affiliation(s)
- Abdel-Moneim Eid Abdel-Moneim
- Biological Applications Department, Nuclear Research Center, Egyptian Atomic Energy Authority, 13759, Egypt
- Corresponding author.
| | - Mohamed T. El-Saadony
- Department of Agricultural Microbiology, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt
| | - Abdelrazeq M. Shehata
- Department of Animal Production, Faculty of Agriculture, Al-Azhar University, Cairo 11651, Egypt
| | - Ahmed M. Saad
- Biochemistry Department, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt
| | - Sami Ali Aldhumri
- Department of Biology, Khurmah University College, Taif University, 11099, Taif 21944, Saudi Arabia
| | - Sahar M Ouda
- Department of Biology, Khurmah University College, Taif University, 11099, Taif 21944, Saudi Arabia
- Plant Research Department, Nuclear Research Center, Egyptian Atomic Energy Authority, 13759, Egypt
| | - Noura M. Mesalam
- Biological Applications Department, Nuclear Research Center, Egyptian Atomic Energy Authority, 13759, Egypt
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9
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Ullah A, Yin X, Wang F, Xu B, Mirani ZA, Xu B, Chan MWH, Ali A, Usman M, Ali N, Naveed M. Biosynthesis of Selenium Nanoparticles (via Bacillus subtilis BSN313), and Their Isolation, Characterization, and Bioactivities. Molecules 2021; 26:5559. [PMID: 34577029 PMCID: PMC8468162 DOI: 10.3390/molecules26185559] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 09/06/2021] [Accepted: 09/08/2021] [Indexed: 11/17/2022] Open
Abstract
Among the trace elements, selenium (Se) has great demand as a health supplement. Compared to its other forms, selenium nanoparticles have minor toxicity, superior reactivity, and excellent bioavailability. The present study was conducted to produce selenium nanoparticles (SeNPs) via a biosynthetic approach using probiotic Bacillus subtilis BSN313 in an economical and easy manner. The BSN313 exhibited a gradual increase in Se reduction and production of SeNPs up to 5-200 µg/mL of its environmental Se. However, the capability was decreased beyond that concentration. The capacity for extracellular SeNP production was evidenced by the emergence of red color, then confirmed by a microscopic approach. Produced SeNPs were purified, freeze-dried, and subsequently characterized systematically using UV-Vis spectroscopy, FTIR, Zetasizer, SEM-EDS, and TEM techniques. SEM-EDS analysis proved the presence of selenium as the foremost constituent of SeNPs. With an average particle size of 530 nm, SeNPs were shown to have a -26.9 (mV) zeta potential and -2.11 µm cm/Vs electrophoretic mobility in water. SeNPs produced during both the 24 and 48 h incubation periods showed good antioxidant activity in terms of DPPH and ABST scavenging action at a concentration of 150 µg/mL with no significant differences (p > 0.05). Moreover, 200 µg/mL of SeNPs showed antibacterial reactivity against Escherichia coli ATCC 8739, Staphylococcus aureus ATCC 9027, and Pseudomonas aeruginosa ATCC 25923. In the future, this work will be helpful to produce biogenic SeNPs using probiotic Bacillus subtilis BSN313 as biofactories, with the potential for safe use in biomedical and nutritional applications.
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Affiliation(s)
- Asad Ullah
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology & Business University (BTBU), Beijing 100048, China; (A.U.); (X.Y.); (B.X.); (M.U.); (N.A.); (M.N.)
- School of Light Industry, Beijing Technology & Business University (BTBU), Beijing 100048, China
- Food and Marine Resources Research Center, Pakistan Council of Scientific and Industrial Research Laboratories Complex, Karachi 75280, Pakistan;
| | - Xian Yin
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology & Business University (BTBU), Beijing 100048, China; (A.U.); (X.Y.); (B.X.); (M.U.); (N.A.); (M.N.)
- School of Light Industry, Beijing Technology & Business University (BTBU), Beijing 100048, China
| | - Fenghuan Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology & Business University (BTBU), Beijing 100048, China; (A.U.); (X.Y.); (B.X.); (M.U.); (N.A.); (M.N.)
- School of Light Industry, Beijing Technology & Business University (BTBU), Beijing 100048, China
| | - Bo Xu
- McIntire School of Commerce, University of Virginia, Charlottesville, VA 22903, USA
| | - Zulfiqar Ali Mirani
- Food and Marine Resources Research Center, Pakistan Council of Scientific and Industrial Research Laboratories Complex, Karachi 75280, Pakistan;
| | - Baocai Xu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology & Business University (BTBU), Beijing 100048, China; (A.U.); (X.Y.); (B.X.); (M.U.); (N.A.); (M.N.)
- School of Light Industry, Beijing Technology & Business University (BTBU), Beijing 100048, China
| | - Malik Wajid Hussain Chan
- Centre of Excellence in Marine Biology, University of Karachi, Karachi 75270, Pakistan; (M.W.H.C.); (A.A.)
| | - Amjad Ali
- Centre of Excellence in Marine Biology, University of Karachi, Karachi 75270, Pakistan; (M.W.H.C.); (A.A.)
| | - Muhammad Usman
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology & Business University (BTBU), Beijing 100048, China; (A.U.); (X.Y.); (B.X.); (M.U.); (N.A.); (M.N.)
| | - Nawazish Ali
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology & Business University (BTBU), Beijing 100048, China; (A.U.); (X.Y.); (B.X.); (M.U.); (N.A.); (M.N.)
- School of Light Industry, Beijing Technology & Business University (BTBU), Beijing 100048, China
| | - Muhammad Naveed
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology & Business University (BTBU), Beijing 100048, China; (A.U.); (X.Y.); (B.X.); (M.U.); (N.A.); (M.N.)
- School of Light Industry, Beijing Technology & Business University (BTBU), Beijing 100048, China
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10
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Dixit R, Gupta A, Jordan N, Zhou S, Schild D, Weiss S, Guillon E, Jain R, Lens P. Magnetic properties of biogenic selenium nanomaterials. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:40264-40274. [PMID: 33387313 DOI: 10.1007/s11356-020-11683-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 11/15/2020] [Indexed: 06/12/2023]
Abstract
Bioreduction of selenium oxyanions to elemental selenium is ubiquitous; elucidating the properties of this biogenic elemental selenium (BioSe) is thus important to understand its environmental fate. In this study, the magnetic properties of biogenic elemental selenium nanospheres (BioSe-Nanospheres) and nanorods (BioSe-Nanorods) obtained via the reduction of selenium(IV) using anaerobic granular sludge taken from an upflow anaerobic sludge blanket (UASB) reactor treating paper and pulp wastewater were investigated. The study indicated that the BioSe nanomaterials have a strong paramagnetic contribution with some ferromagnetic component due to the incorporation of Fe(III) (high-spin and low-spin species) as indicated by electron paramagnetic resonance (EPR). The paramagnetism did not saturate up to 50,000 Oe at 5 K, and the hysteresis curve showed the coercivity of 100 Oe and magnetic moment saturation around 10 emu. X-ray photoelectron spectroscopy (XPS) and EPR evidenced the presence of Fe(III) in the nanomaterial. Signals for Fe(II) were observed neither in EPR nor in XPS ruling out its presence in the BioSe nanoparticles. Fe(III) being abundantly present in the sludge likely got entrapped in the extracellular polymeric substances (EPS) coating the biogenic nanomaterials. The presence of Fe(III) in BioSe nanomaterial increases the mobility of Fe(III) and may have an effect on phytoplankton growth in the environment. Furthermore, as supported by the literature, there is a potential to exploit the magnetic properties of BioSe nanomaterials in drug delivery systems as well as in space refrigeration.
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Affiliation(s)
- Rewati Dixit
- Waste Treatment Laboratory, Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi, Hauz-Khas, New Delhi, 110016, India.
| | - Anirudh Gupta
- Waste Treatment Laboratory, Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi, Hauz-Khas, New Delhi, 110016, India
| | - Norbert Jordan
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Resource Ecology, Bautzner Landstrasse 400, 01328, Dresden, Germany
| | - Shengqiang Zhou
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Ion Beam Physics and Materials Research, Bautzner Landstrasse 400, 01328, Dresden, Germany
| | - Dieter Schild
- Institute for Nuclear Waste Disposal, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Stephan Weiss
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Resource Ecology, Bautzner Landstrasse 400, 01328, Dresden, Germany
| | - Emmanuel Guillon
- Molecular Chemistry Institute of Reims (ICMR UMR CNRS 7312), Environmental Chemistry Group, University of Reims Chamapagne Ardenne, BP 1039, 51687 Reims cedex 2, France
| | - Rohan Jain
- Waste Treatment Laboratory, Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi, Hauz-Khas, New Delhi, 110016, India.
- Faculty of Engineering and Natural Sciences, Tampere University of Technology, P.O. Box 1001, FI-33014, Tampere, Finland.
| | - Piet Lens
- Faculty of Engineering and Natural Sciences, Tampere University of Technology, P.O. Box 1001, FI-33014, Tampere, Finland
- UNESCO-IHE, Westvest 7, 2611 AX, Delft, The Netherlands
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11
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Miglani S, Tani-Ishii N. Biosynthesized selenium nanoparticles: characterization, antimicrobial, and antibiofilm activity against Enterococcus faecalis. PeerJ 2021; 9:e11653. [PMID: 34249505 PMCID: PMC8254471 DOI: 10.7717/peerj.11653] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Accepted: 05/31/2021] [Indexed: 12/19/2022] Open
Abstract
Background Control over microbial growth is a crucial factor in determining the success of endodontic therapy. Enterococcus faecalis is the most resistant biofilm-forming species leading to endodontic failure. Hence, the current researches are directed towards discovering materials with superior disinfection properties and lesser cytotoxicity. This study aimed to synthesize and characterize biogenically produced Selenium Nanoparticles, and to evaluate the antimicrobial and antibiofilm efficacy, against Enterococcus Faecalis, for the following test groups: Group I: Distilled water (control), Group II: SeNPs (1 mg/ml), Group III: Calcium hydroxide (1 mg/ml), Group IV: 2% Chlorhexidine gluconate (CHX), Group V: 5.25% Sodium hypochlorite (NaOCl). Materials and Methods Selenium nanoparticles were derived using fresh guava leaves (Psidium guajava) and were characterized. The antibacterial efficacy against E. faecalis was evaluated by agar well diffusion method. The antibiofilm efficacy of the test groups was observed by viable cell count, antibiofilm assay, and Anthrone and Bradford’s tests. The morphology of the biofilms was analysed using the Scanning Electron Microscope and Fourier Transform Infrared spectroscopy. Results Antibacterial and antibiofilm efficacy of all tested solutions showed superior antibacterial and antibiofilm efficacy when compared to the control group. Overall, SeNPs (Group II) was the most effective against E. faecalis biofilm, followed by NaOCl (Group V), CHX (Group IV), and Ca(OH)2 (Group III). Conclusion Biogenically produced SeNPs emerged as a novel antibacterial and antibiofilm agent against E. faecalis. This nano-formulation demonstrates the potential to be developed as a root canal disinfectant combating bacterial biofilm in endodontics after the results have been clinically extrapolated.
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Affiliation(s)
- Sanjay Miglani
- Department of Conservative Dentistry & Endodontics, Faculty of Dentistry, Jamia Millia Islamia University, Delhi, India
| | - Nobuyuki Tani-Ishii
- Department of Pulp Biology and Endodontics, Graduate School of Dentistry, Kanagawa Dental College, Yokosuka, Kanagawa, Japan
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Lv Q, Liang X, Nong K, Gong Z, Qin T, Qin X, Wang D, Zhu Y. Advances in Research on the Toxicological Effects of Selenium. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2021; 106:715-726. [PMID: 33420800 DOI: 10.1007/s00128-020-03094-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 12/25/2020] [Indexed: 05/28/2023]
Abstract
Selenium is a trace element necessary for the growth of organisms. Moreover, selenium supplementation can improve the immunity and fertility of the body, as well as its ability to resist oxidation, tumors, heavy metals, and pathogenic microorganisms. However, owing to the duality of selenium, excessive selenium supplementation can cause certain toxic effects on the growth and development of the body and may even result in death in severe cases. At present, increasing attention is being paid to the development and utilization of selenium as a micronutrient, but its potential toxicity tends to be neglected. This study systematically reviews recent research on the toxicological effects of selenium, aiming to provide theoretical references for selenium toxicology-related research and theoretical support for the development of selenium-containing drugs, selenium-enriched dietary supplements, and selenium-enriched foods.
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Affiliation(s)
- Qizhuang Lv
- College of Biology & Pharmacy, Yulin Normal University, Yulin, 537000, Guangxi, China
- Guangxi Key Laboratory of Agricultural Resources Chemistry and Biotechnology, Yulin, 537000, Guangxi, China
| | - Xiaomei Liang
- College of Biology & Pharmacy, Yulin Normal University, Yulin, 537000, Guangxi, China
| | - Keyi Nong
- College of Biology & Pharmacy, Yulin Normal University, Yulin, 537000, Guangxi, China
| | - Zifeng Gong
- College of Biology & Pharmacy, Yulin Normal University, Yulin, 537000, Guangxi, China
| | - Ting Qin
- College of Biology & Pharmacy, Yulin Normal University, Yulin, 537000, Guangxi, China
| | - Xinyun Qin
- College of Biology & Pharmacy, Yulin Normal University, Yulin, 537000, Guangxi, China
| | - Daobo Wang
- College of Biology & Pharmacy, Yulin Normal University, Yulin, 537000, Guangxi, China.
| | - Yulin Zhu
- College of Biology & Pharmacy, Yulin Normal University, Yulin, 537000, Guangxi, China.
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Muchová J, Hearnden V, Michlovská L, Vištejnová L, Zavaďáková A, Šmerková K, Kočiová S, Adam V, Kopel P, Vojtová L. Mutual influence of selenium nanoparticles and FGF2-STAB ® on biocompatible properties of collagen/chitosan 3D scaffolds: in vitro and ex ovo evaluation. J Nanobiotechnology 2021; 19:103. [PMID: 33849566 PMCID: PMC8045349 DOI: 10.1186/s12951-021-00849-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Accepted: 03/31/2021] [Indexed: 02/06/2023] Open
Abstract
In a biological system, nanoparticles (NPs) may interact with biomolecules. Specifically, the adsorption of proteins on the nanoparticle surface may influence both the nanoparticles' and proteins' overall bio-reactivity. Nevertheless, our knowledge of the biocompatibility and risk of exposure to nanomaterials is limited. Here, in vitro and ex ovo biocompatibility of naturally based crosslinked freeze-dried 3D porous collagen/chitosan scaffolds, modified with thermostable fibroblast growth factor 2 (FGF2-STAB®), to enhance healing and selenium nanoparticles (SeNPs) to provide antibacterial activity, were evaluated. Biocompatibility and cytotoxicity were tested in vitro using normal human dermal fibroblasts (NHDF) with scaffolds and SeNPs and FGF2-STAB® solutions. Metabolic activity assays indicated an antagonistic effect of SeNPs and FGF2-STAB® at high concentrations of SeNPs. The half-maximal inhibitory concentration (IC50) of SeNPs for NHDF was 18.9 µg/ml and IC80 was 5.6 µg/ml. The angiogenic properties of the scaffolds were monitored ex ovo using a chick chorioallantoic membrane (CAM) assay and the cytotoxicity of SeNPs over IC80 value was confirmed. Furthermore, the positive effect of FGF2-STAB® at very low concentrations (0.01 µg/ml) on NHDF metabolic activity was observed. Based on detailed in vitro testing, the optimal concentrations of additives in the scaffolds were determined, specifically 1 µg/ml of FGF2-STAB® and 1 µg/ml of SeNPs. The scaffolds were further subjected to antimicrobial tests, where an increase in selenium concentration in the collagen/chitosan scaffolds increased the antibacterial activity. This work highlights the antimicrobial ability and biocompatibility of newly developed crosslinked collagen/chitosan scaffolds involving FGF2-STAB® and SeNPs. Moreover, we suggest that these sponges could be used as scaffolds for growing cells in systems with low mechanical loading in tissue engineering, especially in dermis replacement, where neovascularization is a crucial parameter for successful skin regeneration. Due to their antimicrobial properties, these scaffolds are also highly promising for tissue replacement requiring the prevention of infection.
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Affiliation(s)
- Johana Muchová
- CEITEC-Central European Institute of Technology, Brno University of Technology, Purkynova 656/123, 612 00, Brno, Czech Republic
| | - Vanessa Hearnden
- Department of Materials Science and Engineering, Kroto Research Institute, North Campus, University of Sheffield, Broad Lane, Sheffield, S3 7HQ, UK
| | - Lenka Michlovská
- CEITEC-Central European Institute of Technology, Brno University of Technology, Purkynova 656/123, 612 00, Brno, Czech Republic
| | - Lucie Vištejnová
- Biomedical Center, Medical Faculty in Pilsen, Charles University, Alej Svobody 1655/76, 323 00, Pilsen, Czech Republic
| | - Anna Zavaďáková
- Biomedical Center, Medical Faculty in Pilsen, Charles University, Alej Svobody 1655/76, 323 00, Pilsen, Czech Republic
| | - Kristýna Šmerková
- CEITEC-Central European Institute of Technology, Brno University of Technology, Purkynova 656/123, 612 00, Brno, Czech Republic
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1665/1, 613 00, Brno, Czech Republic
| | - Silvia Kočiová
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1665/1, 613 00, Brno, Czech Republic
| | - Vojtěch Adam
- CEITEC-Central European Institute of Technology, Brno University of Technology, Purkynova 656/123, 612 00, Brno, Czech Republic
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1665/1, 613 00, Brno, Czech Republic
| | - Pavel Kopel
- CEITEC-Central European Institute of Technology, Brno University of Technology, Purkynova 656/123, 612 00, Brno, Czech Republic
- Department of Inorganic Chemistry, Faculty of Science, Palacky University, 17. Listopadu 12, 771 46, Olomouc, Czech Republic
| | - Lucy Vojtová
- CEITEC-Central European Institute of Technology, Brno University of Technology, Purkynova 656/123, 612 00, Brno, Czech Republic.
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14
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Analysis of selenium nanoparticles in human plasma by capillary electrophoresis hyphenated to inductively coupled plasma mass spectrometry. Anal Bioanal Chem 2021; 413:2247-2255. [PMID: 33580829 DOI: 10.1007/s00216-021-03196-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 01/13/2021] [Accepted: 01/23/2021] [Indexed: 01/19/2023]
Abstract
Nanoparticles (NPs) are increasingly applied in research and development of new therapies. Characterization of NP systems most often include size, shape, size distribution, and charge but information on the chemical stability of NPs and investigation of the presence of dissolved species is most often missing in efficacy studies due to lack of appropriate methods. In this study, a method based on capillary electrophoresis coupled to inductively coupled plasma mass spectrometry (CE-ICP-MS) was established for analysis of selenium (Se) NPs and dissolved Se species in aqueous media. Peak area and migration time precisions (RSD) of 1.4-3.0% and 1.0-2.6%, respectively, were obtained. CE-ICP-MS analysis of a commercially available SeNP suspension (Q-SeNP) revealed large amounts of selenite corresponding to 32% of the total Se content in the suspension, indicating considerable NP degradation upon storage. The CE-ICP-MS method was modified using a coated fused silica capillary in order to analyze SeNPs in human plasma. Peak area and migration time precisions (RSD) in the range of 3.3-10.7% and 0.8-2.8%, respectively, were achieved. Degradation of polyvinyl alcohol (PVA)-coated SeNPs to selenite in human plasma was demonstrated using the modified method. The amounts of SeNP and selenite were estimated based on a correction factor for the ICP-MS signals of PVA-SeNP and dissolved Se. To the best of our knowledge, this is the first study of SeNPs by CE-ICP-MS and highlights the potential of CE-ICP-MS for quantitative characterization of the behavior of SeNPs in biological media.
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Huang T, Holden JA, Reynolds EC, Heath DE, O'Brien-Simpson NM, O'Connor AJ. Multifunctional Antimicrobial Polypeptide-Selenium Nanoparticles Combat Drug-Resistant Bacteria. ACS APPLIED MATERIALS & INTERFACES 2020; 12:55696-55709. [PMID: 33249831 DOI: 10.1021/acsami.0c17550] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Antibiotic-resistant bacteria are a severe threat to human health. The World Health Organization's Global Antimicrobial Surveillance System has revealed widespread occurrence of antibiotic resistance among half a million patients across 22 countries, with Staphylococcus aureus, Escherichia coli, and Klebsiella pneumoniae being the most common resistant species. Antimicrobial nanoparticles are emerging as a promising alternative to antibiotics in the fight against antimicrobial resistance. In this work, selenium nanoparticles coated with the antimicrobial polypeptide, ε-poly-l-lysine, (Se NP-ε-PL) were synthesized and their antibacterial activity and cytotoxicity were investigated. Se NP-ε-PL exhibited significantly greater antibacterial activity against all eight bacterial species tested, including Gram-positive, Gram-negative, and drug-resistant strains, than their individual components, Se NP and ε-PL. The nanoparticles showed no toxicity toward human dermal fibroblasts at the minimum inhibitory concentrations, demonstrating a therapeutic window. Furthermore, unlike the conventional antibiotic kanamycin, Se NP-ε-PL did not readily induce resistance in E. coli or S. aureus. Specifically, S. aureus began to develop resistance to kanamycin from ∼44 generations, whereas it took ∼132 generations for resistance to develop to Se NP-ε-PL. Startlingly, E. coli was not able to develop resistance to the nanoparticles over ∼300 generations. These results indicate that the multifunctional approach of combining Se NP with ε-PL to form Se NP-ε-PL is a highly efficacious new strategy with wide-spectrum antibacterial activity, low cytotoxicity, and significant delays in development of resistance.
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Affiliation(s)
- Tao Huang
- Department of Biomedical Engineering, University of Melbourne, Parkville, VIC 3010, Australia
- Melbourne Dental School and The Bio21 Institute of Molecular Science and Biotechnology, The University of Melbourne, Parkville, VIC 3010, Australia
| | - James A Holden
- Melbourne Dental School and The Bio21 Institute of Molecular Science and Biotechnology, The University of Melbourne, Parkville, VIC 3010, Australia
| | - Eric C Reynolds
- Melbourne Dental School and The Bio21 Institute of Molecular Science and Biotechnology, The University of Melbourne, Parkville, VIC 3010, Australia
| | - Daniel E Heath
- Department of Biomedical Engineering, University of Melbourne, Parkville, VIC 3010, Australia
| | - Neil M O'Brien-Simpson
- Melbourne Dental School and The Bio21 Institute of Molecular Science and Biotechnology, The University of Melbourne, Parkville, VIC 3010, Australia
| | - Andrea J O'Connor
- Department of Biomedical Engineering, University of Melbourne, Parkville, VIC 3010, Australia
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16
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Dorazilová J, Muchová J, Šmerková K, Kočiová S, Diviš P, Kopel P, Veselý R, Pavliňáková V, Adam V, Vojtová L. Synergistic Effect of Chitosan and Selenium Nanoparticles on Biodegradation and Antibacterial Properties of Collagenous Scaffolds Designed for Infected Burn Wounds. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E1971. [PMID: 33027935 PMCID: PMC7601368 DOI: 10.3390/nano10101971] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 09/25/2020] [Accepted: 10/02/2020] [Indexed: 12/16/2022]
Abstract
A highly porous scaffold is a desirable outcome in the field of tissue engineering. The porous structure mediates water-retaining properties that ensure good nutrient transportation as well as creates a suitable environment for cells. In this study, porous antibacterial collagenous scaffolds containing chitosan and selenium nanoparticles (SeNPs) as antibacterial agents were studied. The addition of antibacterial agents increased the application potential of the material for infected and chronic wounds. The morphology, swelling, biodegradation, and antibacterial activity of collagen-based scaffolds were characterized systematically to investigate the overall impact of the antibacterial additives. The additives visibly influenced the morphology, water‑retaining properties as well as the stability of the materials in the presence of collagenase enzymes. Even at concentrations as low as 5 ppm of SeNPs, modified polymeric scaffolds showed considerable inhibition activity towards Gram-positive bacterial strains such as Staphylococcus aureus and methicillin-resistant Staphylococcus aureus and Staphylococcus epidermidis in a dose-dependent manner.
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Affiliation(s)
- Jana Dorazilová
- CEITEC—Central European Institute of Technology, Brno University of Technology, Purkyňova 656/123, 612 00 Brno, Czech Republic; (J.D.); (J.M.); (K.Š.); (S.K.); (P.K.); (V.P.); (V.A.)
| | - Johana Muchová
- CEITEC—Central European Institute of Technology, Brno University of Technology, Purkyňova 656/123, 612 00 Brno, Czech Republic; (J.D.); (J.M.); (K.Š.); (S.K.); (P.K.); (V.P.); (V.A.)
| | - Kristýna Šmerková
- CEITEC—Central European Institute of Technology, Brno University of Technology, Purkyňova 656/123, 612 00 Brno, Czech Republic; (J.D.); (J.M.); (K.Š.); (S.K.); (P.K.); (V.P.); (V.A.)
- Department of Chemistry and Biochemistry, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic
| | - Silvia Kočiová
- CEITEC—Central European Institute of Technology, Brno University of Technology, Purkyňova 656/123, 612 00 Brno, Czech Republic; (J.D.); (J.M.); (K.Š.); (S.K.); (P.K.); (V.P.); (V.A.)
- Department of Chemistry and Biochemistry, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic
| | - Pavel Diviš
- Faculty of Chemistry, Brno University of Technology, Purkyňova 118, 612 00 Brno, Czech Republic;
| | - Pavel Kopel
- CEITEC—Central European Institute of Technology, Brno University of Technology, Purkyňova 656/123, 612 00 Brno, Czech Republic; (J.D.); (J.M.); (K.Š.); (S.K.); (P.K.); (V.P.); (V.A.)
- Department of Inorganic Chemistry, Faculty of Science, Palacky University, 17. Listopadu 12, 771 46 Olomouc, Czech Republic
| | - Radek Veselý
- Department of Traumatology at the Medical Faculty, Masaryk University and Trauma Hospital of Brno, Ponavka 6, 662 50 Brno, Czech Republic;
| | - Veronika Pavliňáková
- CEITEC—Central European Institute of Technology, Brno University of Technology, Purkyňova 656/123, 612 00 Brno, Czech Republic; (J.D.); (J.M.); (K.Š.); (S.K.); (P.K.); (V.P.); (V.A.)
| | - Vojtěch Adam
- CEITEC—Central European Institute of Technology, Brno University of Technology, Purkyňova 656/123, 612 00 Brno, Czech Republic; (J.D.); (J.M.); (K.Š.); (S.K.); (P.K.); (V.P.); (V.A.)
- Department of Chemistry and Biochemistry, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic
| | - Lucy Vojtová
- CEITEC—Central European Institute of Technology, Brno University of Technology, Purkyňova 656/123, 612 00 Brno, Czech Republic; (J.D.); (J.M.); (K.Š.); (S.K.); (P.K.); (V.P.); (V.A.)
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Jalali S, Montazer M, Mahmoudi Rad M. Biologically active PET/polysaccharide-based nanofibers post-treated with selenium/Tragacanth Gum nanobiocomposites. Carbohydr Polym 2020; 251:117125. [PMID: 33142657 DOI: 10.1016/j.carbpol.2020.117125] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 09/12/2020] [Accepted: 09/16/2020] [Indexed: 01/18/2023]
Abstract
Polysaccharide-based nanofibers from Tragacanth Gum (TG) and polyethylene terephthalate (PET) were post-treated with selenium nanoparticles (Se NPs) and also stabilized with TG (SeNPs/TG). DLS, FE-SEM, EDX, TEM, and XRD were employed to verify the synthesis of Se NPs. The relatively narrow size distribution of SeNPs/TG showed through TEM and DLS investigations comparing with Se NPs. The Se NPs formation with and without TG was studied with FTIR confirmed the final stabilized solution due to the bonded hydroxyl groups of TG with Se NPs. Also, a relatively higher antioxidant reported on SeNPs/TG at 0.5-5 mg/mL using DPPH scavenging ability. The Se NPs and SeNPs/TG solutions specified remarkable inhibition against Staphylococcus aureus and Candida albicans; however, no significant antibacterial activities observed on the treated nanofibers. Finally, the uniform migration of fibroblast cells in wound healing of the treated nanofibers with SeNPs/TG proved the value of the products in medical applications.
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Affiliation(s)
- Sara Jalali
- Textile Engineering Department, Amirkabir University of Technology, Tehran, Iran
| | - Majid Montazer
- Textile Engineering Department, Functional Fibrous Structures & Environmental Enhancement (FFSEE), Amirkabir Nanotechnology Research Institute (ANTRI), Amirkabir University of Technology, Tehran, Iran.
| | - Mahnaz Mahmoudi Rad
- Skin Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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18
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Huang T, Kumari S, Herold H, Bargel H, Aigner TB, Heath DE, O’Brien-Simpson NM, O’Connor AJ, Scheibel T. Enhanced Antibacterial Activity of Se Nanoparticles Upon Coating with Recombinant Spider Silk Protein eADF4(κ16). Int J Nanomedicine 2020; 15:4275-4288. [PMID: 32606677 PMCID: PMC7306472 DOI: 10.2147/ijn.s255833] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 05/14/2020] [Indexed: 12/16/2022] Open
Abstract
PURPOSE Selenium nanoparticles (Se NPs) are promising antibacterial agents to tackle the growing problem of antimicrobial resistance. The aim of this study was to fabricate Se NPs with a net positive charge to enhance their antibacterial efficacy. METHODS Se NPs were coated with a positively charged protein - recombinant spider silk protein eADF4(κ16) - to give them a net positive surface charge. Their cytotoxicity and antibacterial activity were investigated, with negatively charged polyvinyl alcohol coated Se NPs as a control. Besides, these eADF4(κ16)-coated Se NPs were immobilized on the spider silk films, and the antibacterial activity of these films was investigated. RESULTS Compared to the negatively charged polyvinyl alcohol coated Se NPs, the positively charged eADF4(κ16)-coated Se NPs demonstrated a much higher bactericidal efficacy against the Gram-negative bacteria E. coli, with a minimum bactericidal concentration (MBC) approximately 50 times lower than that of negatively charged Se NPs. Cytotoxicity testing showed that the eADF4(κ16)-coated Se NPs are safe to both Balb/3T3 mouse embryo fibroblasts and HaCaT human skin keratinocytes up to 31 µg/mL, which is much higher than the MBC of these particles against E. coli (8 ± 1 µg/mL). In addition, antibacterial coatings were created by immobilising the eADF4(κ16)-coated Se NPs on positively charged spider silk films and these were shown to retain good bactericidal efficacy and overcome the issue of low particle stability in culture broth. It was found that these Se NPs needed to be released from the film surface in order to exert their antibacterial effects and this release can be regulated by the surface charge of the film, such as the change of the spider silk protein used. CONCLUSION Overall, eADF4(κ16)-coated Se NPs are promising new antibacterial agents against life-threatening bacteria.
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Affiliation(s)
- Tao Huang
- Department of Biomedical Engineering, Melbourne School of Engineering, University of Melbourne, Parkville, VIC3010, Australia
- Department for Biomaterials, Faculty of Engineering Science, University of Bayreuth, Prof. Rüdiger Bormann Str. 1, Bayreuth95447, Germany
| | - Sushma Kumari
- Department for Biomaterials, Faculty of Engineering Science, University of Bayreuth, Prof. Rüdiger Bormann Str. 1, Bayreuth95447, Germany
| | - Heike Herold
- Department for Biomaterials, Faculty of Engineering Science, University of Bayreuth, Prof. Rüdiger Bormann Str. 1, Bayreuth95447, Germany
| | - Hendrik Bargel
- Department for Biomaterials, Faculty of Engineering Science, University of Bayreuth, Prof. Rüdiger Bormann Str. 1, Bayreuth95447, Germany
| | - Tamara B Aigner
- Department for Biomaterials, Faculty of Engineering Science, University of Bayreuth, Prof. Rüdiger Bormann Str. 1, Bayreuth95447, Germany
| | - Daniel E Heath
- Department of Biomedical Engineering, Melbourne School of Engineering, University of Melbourne, Parkville, VIC3010, Australia
| | - Neil M O’Brien-Simpson
- Melbourne Dental School and the Bio21 Institute of Molecular Science and Biotechnology, The University of Melbourne, Parkville, VIC3010, Australia
| | - Andrea J O’Connor
- Department of Biomedical Engineering, Melbourne School of Engineering, University of Melbourne, Parkville, VIC3010, Australia
| | - Thomas Scheibel
- Department for Biomaterials, Faculty of Engineering Science, University of Bayreuth, Prof. Rüdiger Bormann Str. 1, Bayreuth95447, Germany
- Bavarian Polymer Institute (BPI), Bayreuth Center for Material Science and Engineering (BayMAT), Bayreuth Center for Colloids and Interfaces (BZKG), Bayreuth Center for Molecular Biosciences (BZMB), University of Bayreuth, Bayreuth95447, Germany
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Development, structure characterization and stability of food grade selenium nanoparticles stabilized by tilapia polypeptides. J FOOD ENG 2020. [DOI: 10.1016/j.jfoodeng.2019.109878] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Matai I, Pandey SK, Garg D, Rani K, Sachdev A. Phytogreen synthesis of multifunctional nano selenium with antibacterial and antioxidant implications. NANO EXPRESS 2020. [DOI: 10.1088/2632-959x/ab8bea] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Abstract
The exploitation of plant extracts for the synthesis of nano selenium having antibacterial and antioxidant activities is an exciting approach to counteract the prevalence of infections caused by antibiotic-resistant bacteria, which holds relevance for medical and food industries. In the present work, a green and facile method for the preparation of nano selenium (nSe) using the fruit extract of Indian gooseberry (Phyllanthus Emblica) has been reported. The optical and structural properties of the as-synthesized nSe were studied through various characterization techniques. Eventually, the antioxidant potential of nSe was investigated via 2,2-diphenyl-1-picrylhydrazyl (DPPH) and hydroxyl free radical scavenging assays. Parallely, the antibacterial activity of nSe against Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa was evaluated. The antioxidant assays indicated that even low dosage of nSe showed excellent activity with EC50 values of 0.21 μg ml−1 and 3.34 μg ml−1, respectively. Moreover, nSe exhibited significant inhibition in bacterial growth at low minimum inhibitory concentration (MIC) values against Escherichia coli (16 μg ml−1), Staphylococcus aureus (32 μg ml−1) and Pseudomonas aeruginosa (48 μg ml−1) compared to MIC values for standard drug ampicillin. Importantly, nSe did not induce any cytotoxic effects on normal human keratinocytes (HaCaT) at the tested concentrations; representing their biocompatible nature. The data obtained demonstrated the versatility of phytogreen nSe as a potent antioxidant and antibacterial agent to effectively prevent as well as treat multidrug-resistant bacterial infections.
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A Novel Biocompatible Titanium-Gadolinium Quantum Dot as a Bacterial Detecting Agent with High Antibacterial Activity. NANOMATERIALS 2020; 10:nano10040778. [PMID: 32316666 PMCID: PMC7221622 DOI: 10.3390/nano10040778] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 04/14/2020] [Accepted: 04/16/2020] [Indexed: 11/17/2022]
Abstract
In this study, the titanium–gadolinium quantum dots (TGQDs) were novel, first of its type to be synthesized, and fully characterized to date. Multiple physical characterization includes scanning electron microscopy (SEM), scanning electrochemical microscope (SCEM), x-ray fluorescence, spectrophotometry, and dynamic light scattering were carried out. The obtained results confirmed appropriate size and shape distributions in addition to processing optical features with high quantum yield. The synthesized TGQD was used as a fluorescent dye for bacterial detection and imaging by fluorescent microscopy and spectrophotometry, where TGQD stained only bacterial cells, but not human cells. The significant antibacterial activities of the TGQDs were found against a highly pathogenic bacterium (Staphylococcus aureus) and its antibiotic resistant strains (vancomycin and methicillin resistant Staphylococcus aureus) using growth curve analysis and determination of minimum inhibitory concentration (MIC) analysis. Live/dead cell imaging assay using phase-contrast microscope was performed for further confirmation of the antibacterial activity. Cell wall disruption and release of cell content was observed to be the prime mode of action with the reduction of cellular oxygen demand (OD).
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Synthesis and Characterization of Selenium Nanoparticles-Lysozyme Nanohybrid System with Synergistic Antibacterial Properties. Sci Rep 2020; 10:510. [PMID: 31949299 PMCID: PMC6965607 DOI: 10.1038/s41598-019-57333-7] [Citation(s) in RCA: 92] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 12/28/2019] [Indexed: 02/01/2023] Open
Abstract
In the light of promising potency of selenium nanoparticles in biomedical applications, this is the first study to report the synergistic antibacterial activity of these nanoparticles and lysozyme. The nanohybrid system was prepared with various concentrations of each component. Resistance of Escherichia coli and Staphylococcus aureus was compared in the presence of individual Nano and Bio counterparts as well as the nanohybrid system. Upon interaction of SeNPs with Lysozyme, the nanohybrid system efficiently enhanced the antibacterial activity compared to the protein. Therefore, SeNPs play an important role in inhibition of bacterial growth at very low concentrations of protein; whereas very high amount of the protein is required to inhibit bacterial growth individually. On the other hand, lysozyme has also played a vital role in antibacterial property of SeNPs, inducing 100% inhibition at very low concentration of each component. Hence, presence of both nano and bio counterparts induced vital interplay in the Nanohybrid system. The aged samples also presented good stability of SeNPs both as the intact and complex form. Results of this effort highlight design of nanohybrid systems with synergistic antibacterial properties to overcome the emerging antibiotic resistance as well as to define fruitful applications in biomedicine and food safety.
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Investigating the Antimicrobial Activities of the Biosynthesized Selenium Nanoparticles and Its Statistical Analysis. BIONANOSCIENCE 2020. [DOI: 10.1007/s12668-019-00710-3] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Shape-Depended Biological Properties of Ag 3PO 4 Microparticles: Evaluation of Antimicrobial Properties and Cytotoxicity in In Vitro Model-Safety Assessment of Potential Clinical Usage. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:6740325. [PMID: 31827692 PMCID: PMC6886340 DOI: 10.1155/2019/6740325] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Accepted: 09/27/2019] [Indexed: 01/05/2023]
Abstract
Implant-related infections are an emerging clinical and economic problem. Therefore, we decided to assess potential clinical usefulness and safety of silver orthophosphate microparticles (SOMPs) regarding their shape. We synthesized and then assessed antimicrobial properties and potential cytotoxicity of six shapes of SOMPs (tetrapod, cubes, spheres, tetrahedrons, branched, and rhombic dodecahedron). We found that SOMPs had a high antimicrobial effect; they were more efficient against fungi than bacteria. SOMPs exerted an antimicrobial effect in concentrations not toxic to mammalian cells: human fetal osteoblast (hFOB1.19), osteosarcoma (Saos-2), mouse preosteoblasts (MC3T3-E1), skin fibroblast (HDF), and mouse myoblast (C2C12). At higher concentration SOMPs, induced shape- and concentration-dependent cytotoxicity (according to MTT and BrdU assays). Tetrapod SOMPs had the smallest effect, whereas cubical SOMPs, the highest on cell viability. hFOB1.19 were the most resistant cells and C2C12, the most susceptible ones. We have proven that the induction of oxidative stress and inflammation is involved in the cytotoxic mechanism of SOMPs. After treatment with microparticles, we observed changes in levels of reactive oxygen species, first-line defense antioxidants-superoxide dismutase (SOD1, SOD3), and glutathione peroxidase (GPX4), metalloproteinase (MMP1, MMP3), and NF-κB protein. Neither cell cycle distribution nor ultrastructure was altered as determined by flow cytometry and transmission electron microscopy, respectively. In conclusion, silver orthophosphate may be a safe and effective antimicrobial agent on the implant surface. Spherical-shaped SOMPs are the most promising for biomedical application.
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Shaaban M, El-Mahdy AM. Biosynthesis of Ag, Se, and ZnO nanoparticles with antimicrobial activities against resistant pathogens using waste isolate Streptomyces enissocaesilis. IET Nanobiotechnol 2019; 12:741-747. [PMID: 30104447 DOI: 10.1049/iet-nbt.2017.0213] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Nanoparticles (NPs) are gaining special interest due to their recent applications as antimicrobial agents to defeat the massive threat of resistant pathogens. This study focused on the utilisation of Streptomyces isolate S12 purified from waste discharge soil in the biological synthesis of silver (Ag), selenium (Se), and zinc oxide (ZnO) NPs. The isolate S12 was related to Streptomyces enissocaesilis according to 16S rRNA sequence analysis, morphological characteristics, and biochemical reactions. The cell-free supernatant has been used for the synthesis of Ag, Se, and ZnO NPs. The synthesised NPs were characterised using ultraviolet-visible spectroscopy, dynamic light scattering (DLS), transmission electron microscopy, and Fourier transform infrared spectroscopy. The biogenic NPs were evaluated for antimicrobial effects against different Gram-positive and Gram-negative resistant isolates using the broth microdilution method. They showed antibacterial effect against standard and resistant isolates; Bacillus cereus, Staphylococcus aureus ATCC 29213, S. aureus S1.1, methicillin resistant S. aureus (MRSA 303, 402 and 807), Escherichia coli ATCC 12435, E. coli E7, Klebsiella pneumoniae ATCC 51503, K. pneumoniae K5, K112, Pseudomonas aeruginosa PAO1, and P. aeruginosa P8. This study showed the green synthesis of various NPs using Streptomyces isolate S12 which demonstrated diverse activities against multi-drug resistant isolates.
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Affiliation(s)
- Mona Shaaban
- Department of Microbiology and Immunology, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - Areej M El-Mahdy
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia.
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Mondal A, Douglass M, Hopkins SP, Singha P, Tran M, Handa H, Brisbois EJ. Multifunctional S-Nitroso- N-acetylpenicillamine-Incorporated Medical-Grade Polymer with Selenium Interface for Biomedical Applications. ACS APPLIED MATERIALS & INTERFACES 2019; 11:34652-34662. [PMID: 31483604 PMCID: PMC8007129 DOI: 10.1021/acsami.9b10610] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Modern crises in implantable or indwelling blood-contacting medical devices are mainly due to the dual problems of infection and thrombogenicity. There is a paucity of biomaterials that can address both problems simultaneously through a singular platform. Taking cues from the body's own defense mechanism against infection and blood clotting (thrombosis) via the endogenous gasotransmitter nitric oxide (NO), both of these issues are addressed through the development of a layered S-nitroso-N-acetylpenicillamine (SNAP)-doped polymer with a blended selenium (Se)-polymer interface. The unique capability of the SNAP-Se-1 polymer composites to explicitly release NO from the SNAP reservoir as well as generate NO via the incorporated Se is reported for the first time. The NO release from the SNAP-doped polymer increased substantially in the presence of the Se interface. The Se interface was able to generate NO in the presence of S-nitrosoglutathione (GSNO) and glutathione (GSH), demonstrating the capability of generating NO from endogenous S-nitrosothiols (RSNO). Scanning electron microscopy-energy dispersive spectroscopy (SEM-EDS) traced distribution of elemental Se nanoparticles on the interface and the surface properties were evaluated by surface wettability and roughness. The SNAP-Se-1 efficiently inhibited the growth of bacteria and reduced platelet adhesion while showing minimal cytotoxicity, thus potentially eliminating the risks of systemic antibiotic and blood coagulation therapy. The SNAP-Se-1 exhibited antibacterial activity of ∼2.39 and ∼2.25 log reductions in the growth of clinically challenging adhered Gram-positive Staphylococcus aureus and Gram-negative Escherichia coli. SNAP-Se-1 also significantly reduced platelet adhesion by 85.5% compared to corresponding controls. A WST-8-based cell viability test performed on NIH 3T3 mouse fibroblast cells provided supporting evidence for the potential biocompatibility of the material in vitro. These results highlight the prospective utility of SNAP-Se-1 as a blood-contacting infection-resistant biomaterial in vitro which can be further tuned by application specificity.
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Affiliation(s)
- Arnab Mondal
- School of Chemical, Materials and Biomedical Engineering, College of Engineering , University of Georgia , Athens , Georgia 30602 , United States
| | - Megan Douglass
- School of Chemical, Materials and Biomedical Engineering, College of Engineering , University of Georgia , Athens , Georgia 30602 , United States
| | - Sean P Hopkins
- School of Chemical, Materials and Biomedical Engineering, College of Engineering , University of Georgia , Athens , Georgia 30602 , United States
| | - Priyadarshini Singha
- School of Chemical, Materials and Biomedical Engineering, College of Engineering , University of Georgia , Athens , Georgia 30602 , United States
| | - Martin Tran
- School of Chemical, Materials and Biomedical Engineering, College of Engineering , University of Georgia , Athens , Georgia 30602 , United States
| | - Hitesh Handa
- School of Chemical, Materials and Biomedical Engineering, College of Engineering , University of Georgia , Athens , Georgia 30602 , United States
- Corresponding Authors: Dr. Hitesh Handa, Assistant Professor, University of Georgia, 220 Riverbend Road, Athens, GA 30602, Telephone: (706) 542-8109, ; Dr. Elizabeth Brisbois, Assistant Professor, University of Central Florida, 12760 Pegasus Drive, Orlando, FL 32816, Telephone: (407) 266-7169,
| | - Elizabeth J Brisbois
- Department of Materials Science & Engineering, College of Engineering & Computer Science , University of Central Florida , Orlando , Florida 32816 , United States
- Corresponding Authors: Dr. Hitesh Handa, Assistant Professor, University of Georgia, 220 Riverbend Road, Athens, GA 30602, Telephone: (706) 542-8109, ; Dr. Elizabeth Brisbois, Assistant Professor, University of Central Florida, 12760 Pegasus Drive, Orlando, FL 32816, Telephone: (407) 266-7169,
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Huang T, Holden JA, Heath DE, O'Brien-Simpson NM, O'Connor AJ. Engineering highly effective antimicrobial selenium nanoparticles through control of particle size. NANOSCALE 2019; 11:14937-14951. [PMID: 31363721 DOI: 10.1039/c9nr04424h] [Citation(s) in RCA: 97] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The overuse of antibiotics has induced the rapid development of antibiotic resistance in bacteria. As a result, antibiotic efficacy has become limited, and infection with multidrug-resistant bacteria is considered to be one of the largest global human health threats. Consequently, new, effective and safe antimicrobial agents need to be developed urgently. One promising candidate to address this requirement is selenium nanoparticles (Se NPs), which are made from the essential dietary trace element Se and have antimicrobial activity against Gram-positive bacteria. The size of nanomaterials can strongly affect their biophysical properties and functions; however, the effects of the size of Se NPs on their antibacterial efficacy has not been systematically investigated. Therefore, in this work, spherical Se NPs ranging from 43 to 205 nm in diameter were fabricated, and their mammalian cytotoxicity and antibacterial activity as a function of their size were systematically studied. The antibacterial activity of the Se NPs was shown to be strongly size dependent, with 81 nm Se NPs showing the maximal growth inhibition and killing effect of methicillin-sensitive and methicillin-resistant Staphylococcus aureus (MSSA and MRSA). The Se NPs were shown to have multi-modal mechanisms of action that depended on their size, including depleting internal ATP, inducing ROS production, and disrupting membrane potential. All the Se NPs were non-toxic towards mammalian cells up to 25 μg mL-1. Furthermore, the MIC value for the 81 nm particles produced in this research is 16 ± 7 μg mL-1, significantly lower than previously reported MIC values for Se NPs. This data illustrates that Se NP size is a facile yet critical and previously underappreciated parameter that can be tailored for maximal antimicrobial efficacy. We have identified that using Se NPs with a size of 81 nm and concentration of 10 μg mL-1 shows promise as a safe and efficient way to kill S. aureus without damaging mammalian cells.
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Affiliation(s)
- Tao Huang
- Department of Biomedical Engineering, Particulate Fluids Processing Centre, University of Melbourne, Parkville, VIC 3010, Australia.
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Yazhiniprabha M, Vaseeharan B. In vitro and in vivo toxicity assessment of selenium nanoparticles with significant larvicidal and bacteriostatic properties. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 103:109763. [PMID: 31349432 DOI: 10.1016/j.msec.2019.109763] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 05/06/2019] [Accepted: 05/15/2019] [Indexed: 11/19/2022]
Abstract
In the present study, we investigated the larvicidal and bacteriostatic activity of biosynthesized selenium nanoparticles using aqueous berry extract of Murraya koenigii (Mk-Se NPs). The synthesized Mk-Se NPs were characterized using UV-visible spectroscopy, X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, transmission electron microscopy (TEM), scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) analysis. XRD analysis revealed the crystalline nature of Mk-Se NPs as hexagonal. The FTIR spectra of Mk-Se NPs exhibited a strong peak at 3441 cm-1 corresponding to the OH group. SEM and TEM analysis showed that the Mk-Se NPs were spherical in shape with a size between 50 and 150 nm. EDX peaks confirm the presence of 73.38% of selenium and 26.62% of oxide in Mk-Se NPs. Mk-Se NPs showed significant larvicidal property against the 4th instar larvae of a dengue fever-causing vector Aedes aegypti with LC50- - 3.54 μg mL-1 and LC90- - 8.128 μg mL-1 values. Mk-Se NPs displayed anti-bacterial activity against Gram-positive (Enterococcus faecalis &Streptococcus mutans) and Gram-negative (Shigella sonnei &Pseudomonas aeruginosa) bacteria at 40 and 50 μg mL-1. In addition, Mk-Se NPs reduced bacterial biofilm thickness extensively at 25 μg mL-1. The high antioxidant property at 50 μg mL-1 and low hemolysis activity till 100 μg mL-1 proved the biocompatible nature of Mk-Se NPs. In vitro and in vivo toxicity assessment of Mk-Se NPs showed low cytotoxicity against RAW 264.7 macrophages and Artemia nauplii. Together, our results suggest the potential application of Mk-Se NPs as a nano-biomedicine.
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Affiliation(s)
- Mariappan Yazhiniprabha
- Biomaterials and Biotechnology in Animal Health Lab, Department of Animal Health and Management, Alagappa University, Karaikudi 630004, Tamil Nadu, India
| | - Baskaralingam Vaseeharan
- Biomaterials and Biotechnology in Animal Health Lab, Department of Animal Health and Management, Alagappa University, Karaikudi 630004, Tamil Nadu, India.
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Selenocompounds as Novel Antibacterial Agents and Bacterial Efflux Pump Inhibitors. Molecules 2019; 24:molecules24081487. [PMID: 31014009 PMCID: PMC6514980 DOI: 10.3390/molecules24081487] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 04/02/2019] [Accepted: 04/13/2019] [Indexed: 11/17/2022] Open
Abstract
Bacterial multidrug resistance is becoming a growing problem for public health, due to the development and spreading of bacterial strains resistant to antimicrobials. In this study, the antibacterial and multidrug resistance reversing activity of a series of seleno-carbonyl compounds has been evaluated. The effects of eleven selenocompounds on bacterial growth were evaluated in Staphylococcus aureus, methicillin resistant S. aureus (MRSA), Enterococcus faecalis, Escherichia coli, and Chlamydia trachomatis D. The combination effect of compounds with antibiotics was examined by the minimum inhibitory concentration reduction assay. Their efflux pump (EP) inhibitory properties were assessed using real-time fluorimetry. Relative expressions of EP and quorum-sensing genes were studied by quantitative PCR. Results showed that a methylketone selenoester had remarkable antibacterial activity against Gram-positive bacteria and potentiated the activity of oxacillin in MRSA. Most of the selenocompounds showed significant anti-chlamydial effects. The selenoanhydride and the diselenodiester were active inhibitors of the AcrAB-TolC system. Based on these results it can be concluded that this group of selenocompounds can be attractive potential antibacterials and EP inhibitors. The discovery of new derivatives with a significant antibacterial activity as novel selenocompounds, is of high impact in the fight against resistant pathogens.
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Cremonini E, Boaretti M, Vandecandelaere I, Zonaro E, Coenye T, Lleo MM, Lampis S, Vallini G. Biogenic selenium nanoparticles synthesized by Stenotrophomonas maltophilia SeITE02 loose antibacterial and antibiofilm efficacy as a result of the progressive alteration of their organic coating layer. Microb Biotechnol 2018; 11:1037-1047. [PMID: 29635772 PMCID: PMC6196382 DOI: 10.1111/1751-7915.13260] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Revised: 01/25/2018] [Accepted: 02/16/2018] [Indexed: 12/17/2022] Open
Abstract
Increasing emergence of drug-resistant microorganisms poses a great concern to clinicians; thus, new active products are urgently required to treat a number of infectious disease cases. Different metallic and metalloid nanoparticles have so far been reported as possessing antimicrobial properties and proposed as a possible alternative therapy against resistant pathogenic microorganisms. In this study, selenium nanoparticles (SeNPs) synthesized by the environmental bacterial isolate Stenotrophomonas maltophilia SeITE02 were shown to exert a clear antimicrobial and antibiofilm activity against different pathogenic bacteria, either reference strains or clinical isolates. Antimicrobial and antibiofilm capacity seems to be strictly linked to the organic cap surrounding biogenic nanoparticles, although the actual role played by this coating layer in the biocidal action remains still undefined. Nevertheless, evidence has been gained that the progressive loss in protein and carbohydrate content of the organic cap determines a decrease in nanoparticle stability. This leads to an alteration of size and electrical properties of SeNPs along with a gradual attenuation of their antibacterial efficacy. Denaturation of the coating layer was proved even to have a negative effect on the antibiofilm activity of these nanoparticles. The pronounced antimicrobial efficacy of biogenic SeNPs compared to the denatured ones can - in first instance - be associated with their smaller dimensions. This study showed that the native organic coating layer of biogenic SeNPs functions in avoiding aggregation and maintaining electrostatic stability of the nanoparticles, thus allowing them to maintain efficient antimicrobial and antibiofilm capabilities.
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Affiliation(s)
- Eleonora Cremonini
- Department of Diagnostic and Public HealthUniversity of VeronaStrada Le Grazie 837134VeronaItaly
| | - Marzia Boaretti
- Department of Diagnostic and Public HealthUniversity of VeronaStrada Le Grazie 837134VeronaItaly
| | - Ilse Vandecandelaere
- Laboratory of Pharmaceutical MicrobiologyGhent UniversityOttergemsesteenweg 4609000GentBelgium
| | - Emanuele Zonaro
- Department of BiotechnologyUniversity of VeronaStrada Le Grazie 1537134VeronaItaly
| | - Tom Coenye
- Laboratory of Pharmaceutical MicrobiologyGhent UniversityOttergemsesteenweg 4609000GentBelgium
| | - Maria M. Lleo
- Department of Diagnostic and Public HealthUniversity of VeronaStrada Le Grazie 837134VeronaItaly
| | - Silvia Lampis
- Department of BiotechnologyUniversity of VeronaStrada Le Grazie 1537134VeronaItaly
| | - Giovanni Vallini
- Department of BiotechnologyUniversity of VeronaStrada Le Grazie 1537134VeronaItaly
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31
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Enhanced aqueous stability of silver oxynitrate through surface modification with alkanethiols. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2018.08.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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32
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Jelinkova P, Splichal Z, Jimenez AMJ, Haddad Y, Mazumdar A, Sur VP, Milosavljevic V, Kopel P, Buchtelova H, Guran R, Zitka O, Richtera L, Hegerova D, Heger Z, Moulick A, Adam V. Novel vancomycin-peptide conjugate as potent antibacterial agent against vancomycin-resistant Staphylococcus aureus. Infect Drug Resist 2018; 11:1807-1817. [PMID: 30349337 PMCID: PMC6190637 DOI: 10.2147/idr.s160975] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Background Increase in vancomycin (Van)-resistant bacterial strains including vancomycin-resistant Staphylococcus aureus (VRSA) and lack of new effective antibiotics have become a formidable health problem. Materials and methods We designed a new conjugate composed of Van and a peptide Hecate (Hec; Van/Hec), and its potential antimicrobial activity was evaluated. Results Results from disk diffusion test, time-kill assay, determination of minimum inhibitory concentration (MIC), microscopy, and comet assay showed strong antimicrobial effects of Van/Hec against wild-type, methicillin-resistant Staphylococcus aureus (MRSA) and VRSA. Microscopy revealed that the exposure to Van/Hec results in disruption of bacterial cell integrity in all tested strains, which was not observed in case of Van or Hec alone. Conclusion Overall, we showed that the preparation of conjugates from antibiotics and biologically active peptides could help us to overcome the limitation of the use of antibiotic in the treatment of infections caused by multidrug-resistant bacteria.
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Affiliation(s)
- Pavlina Jelinkova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska, Brno, Czech Republic,
| | - Zbynek Splichal
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska, Brno, Czech Republic, .,Central European Institute of Technology, Brno University of Technology, Purkynova, Brno, Czech Republic,
| | - Ana Maria Jimenez Jimenez
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska, Brno, Czech Republic, .,Central European Institute of Technology, Brno University of Technology, Purkynova, Brno, Czech Republic,
| | - Yazan Haddad
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska, Brno, Czech Republic, .,Central European Institute of Technology, Brno University of Technology, Purkynova, Brno, Czech Republic,
| | - Aninda Mazumdar
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska, Brno, Czech Republic, .,Central European Institute of Technology, Brno University of Technology, Purkynova, Brno, Czech Republic,
| | - Vishma Pratap Sur
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska, Brno, Czech Republic, .,Central European Institute of Technology, Brno University of Technology, Purkynova, Brno, Czech Republic,
| | - Vedran Milosavljevic
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska, Brno, Czech Republic, .,Central European Institute of Technology, Brno University of Technology, Purkynova, Brno, Czech Republic,
| | - Pavel Kopel
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska, Brno, Czech Republic, .,Central European Institute of Technology, Brno University of Technology, Purkynova, Brno, Czech Republic,
| | - Hana Buchtelova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska, Brno, Czech Republic,
| | - Roman Guran
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska, Brno, Czech Republic, .,Central European Institute of Technology, Brno University of Technology, Purkynova, Brno, Czech Republic,
| | - Ondrej Zitka
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska, Brno, Czech Republic, .,Central European Institute of Technology, Brno University of Technology, Purkynova, Brno, Czech Republic,
| | - Lukas Richtera
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska, Brno, Czech Republic, .,Central European Institute of Technology, Brno University of Technology, Purkynova, Brno, Czech Republic,
| | - Dagmar Hegerova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska, Brno, Czech Republic, .,Central European Institute of Technology, Brno University of Technology, Purkynova, Brno, Czech Republic,
| | - Zbynek Heger
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska, Brno, Czech Republic, .,Central European Institute of Technology, Brno University of Technology, Purkynova, Brno, Czech Republic,
| | - Amitava Moulick
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska, Brno, Czech Republic, .,Central European Institute of Technology, Brno University of Technology, Purkynova, Brno, Czech Republic,
| | - Vojtech Adam
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska, Brno, Czech Republic, .,Central European Institute of Technology, Brno University of Technology, Purkynova, Brno, Czech Republic,
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Jamróz E, Kopel P, Juszczak L, Kawecka A, Bytesnikova Z, Milosavljević V, Kucharek M, Makarewicz M, Adam V. Development and characterisation of furcellaran-gelatin films containing SeNPs and AgNPs that have antimicrobial activity. Food Hydrocoll 2018. [DOI: 10.1016/j.foodhyd.2018.04.028] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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34
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Jelinkova P, Vesely R, Cihalova K, Hegerova D, Ananbeh HAAA, Richtera L, Smerkova K, Brtnicky M, Kynicky J, Moulick A, Adam V. Effect of arsenic (III and V) on oxidative stress parameters in resistant and susceptible Staphylococcus aureus. ENVIRONMENTAL RESEARCH 2018; 166:394-401. [PMID: 29936287 DOI: 10.1016/j.envres.2018.06.024] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 04/26/2018] [Accepted: 06/11/2018] [Indexed: 06/08/2023]
Abstract
The presented study deals with the observation of properties of methicillin-susceptible Staphylococcus aureus (MSSA) and methicillin-resistant S. aureus (MRSA) in the toxic arsenic environment and influence of arsenic on antioxidant capacity. Two forms of arsenic (As(III), As(V)) with different concentrations were used for induction of the oxidative stress in tested strains. Microbiological methods showed that the growth inhibition of MSSA was higher than that of MRSA in presence of both arsenic ions. As(III) showed 24% and 33% higher anti-microbial effects than As(V) against MSSA and MRSA respectively. A similar result was found also in the experiment of reduction of biofilm-formation. By using spectrophotometry, it was revealed that As(III) induced higher antioxidant production in both bacterial cultures. Methicillin-susceptible S. aureus produced an app. 50 mg equivalent of gallic acid (GAE/1 mg of protein) and MRSA produced an app. 15 mg of GAE/1 mg of protein. The productions of metallothionein in MSSA and MRSA were decreased up to 62.41% and 55.84% respectively in presence of As ions. Reduction of As(III) and As(V) concentrations leads to a decrease in antioxidant production and increased the formation of metallothionein. All of these changes in the results were found to be significant statistically. Taken together, these experiments proved that in comparison with MSSA, MRSA is less susceptible not only to the antimicrobial effects of antibiotics but also against effects caused by metalloids, as arsenic. Thus, it can be stated that MRSA abounds with complex defensive mechanisms, which may in the future constitute significant problem in the efficiency of antibiotics alternatives as metal ions or nanoparticles.
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Affiliation(s)
- Pavlina Jelinkova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic
| | - Radek Vesely
- Department of Traumatology at the Medical Faculty, Masaryk University and Trauma Hospital of Brno, Ponavka 6, CZ-662 50 Brno, Czech Republic
| | - Kristyna Cihalova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic; Central European Institute of Technology, Brno University of Technology, Purkynova 123, CZ-612 00 Brno, Czech Republic
| | - Dagmar Hegerova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic; Central European Institute of Technology, Brno University of Technology, Purkynova 123, CZ-612 00 Brno, Czech Republic
| | - Hanadi Abd Alrahman Ali Ananbeh
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic; Central European Institute of Technology, Brno University of Technology, Purkynova 123, CZ-612 00 Brno, Czech Republic
| | - Lukas Richtera
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic; Central European Institute of Technology, Brno University of Technology, Purkynova 123, CZ-612 00 Brno, Czech Republic
| | - Kristyna Smerkova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic; Central European Institute of Technology, Brno University of Technology, Purkynova 123, CZ-612 00 Brno, Czech Republic
| | - Martin Brtnicky
- Central European Institute of Technology, Brno University of Technology, Purkynova 123, CZ-612 00 Brno, Czech Republic; Department of Geology and Pedology, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic
| | - Jindrich Kynicky
- Central European Institute of Technology, Brno University of Technology, Purkynova 123, CZ-612 00 Brno, Czech Republic
| | - Amitava Moulick
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic; Central European Institute of Technology, Brno University of Technology, Purkynova 123, CZ-612 00 Brno, Czech Republic
| | - Vojtech Adam
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic; Central European Institute of Technology, Brno University of Technology, Purkynova 123, CZ-612 00 Brno, Czech Republic.
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Singh A, Baruah A, Katoch V, Vaghasiya K, Prakash B, Ganguli AK. Continuous flow synthesis of Ag3PO4 nanoparticles with greater photostability and photocatalytic dye degradation efficiency. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2018.05.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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Urbankova L, Horky P, Skladanka J, Pribilova M, Smolikova V, Nevrkla P, Cernei N, Lackova Z, Hedbavny J, Ridoskova A, Adam V, Kopel P. Antioxidant status of rats' blood and liver affected by sodium selenite and selenium nanoparticles. PeerJ 2018; 6:e4862. [PMID: 29868274 PMCID: PMC5978387 DOI: 10.7717/peerj.4862] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Accepted: 05/07/2018] [Indexed: 01/05/2023] Open
Abstract
Background Selenium is an essential element; however, at higher doses, it can be toxic. Therefore, alternative nanotechnological solutions are required to overcome toxicological issues, rather than conventional alternatives. Nanoparticles show new and promising properties that may be able to suppress toxicity while maintaining the positive effects of selenium on an organism. The aim of the experiment was to determine the influence of sodium selenite and selenium nanoparticles (SeNPs) on the antioxidant status of rats. Methods The males of the outbreed rat strain Wistar albino were selected as a model organism. Animals were fed different forms of selenium. The control group was given a mixture without selenium addition, whereas other groups were fed a mixture containing sodium selenite, Se-49, and Se-100 SeNPs respectively. The duration of the trial was 30 days. Results Analysis of blood and liver was performed where the concentration of reduced (GSH) and oxidised (GSSG) glutathione, and total selenium content were measured. In the liver, a significant reduction in GSSG was found for all experiment groups. Blood samples showed a significant reduction in GSH and an increase in GSSG. Discussion These results show that SeNPs may be an alternative to dietary selenium for animal organisms.
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Affiliation(s)
- Lenka Urbankova
- Department of Animal Nutrition and Forage Production, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic
| | - Pavel Horky
- Department of Animal Nutrition and Forage Production, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic
| | - Jiri Skladanka
- Department of Animal Nutrition and Forage Production, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic
| | - Magdalena Pribilova
- Department of Animal Nutrition and Forage Production, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic
| | - Vendula Smolikova
- Department of Chemistry and Biochemistry, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic.,Central European Institute of Technology, Technical University of Brno, Brno, Czech Republic
| | - Pavel Nevrkla
- Department of Animal Breeding, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic
| | - Natalia Cernei
- Department of Chemistry and Biochemistry, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic.,Central European Institute of Technology, Technical University of Brno, Brno, Czech Republic
| | - Zuzana Lackova
- Department of Chemistry and Biochemistry, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic.,Central European Institute of Technology, Technical University of Brno, Brno, Czech Republic
| | - Josef Hedbavny
- Department of Chemistry and Biochemistry, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic
| | - Andrea Ridoskova
- Department of Chemistry and Biochemistry, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic.,Central European Institute of Technology, Technical University of Brno, Brno, Czech Republic
| | - Vojtech Adam
- Department of Chemistry and Biochemistry, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic.,Central European Institute of Technology, Technical University of Brno, Brno, Czech Republic
| | - Pavel Kopel
- Department of Chemistry and Biochemistry, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic.,Central European Institute of Technology, Technical University of Brno, Brno, Czech Republic
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Yang J, Wang J, Yang K, Liu M, Qi Y, Zhang T, Fan M, Wei X. Antibacterial activity of selenium-enriched lactic acid bacteria against common food-borne pathogens in vitro. J Dairy Sci 2018; 101:1930-1942. [DOI: 10.3168/jds.2017-13430] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2017] [Accepted: 10/26/2017] [Indexed: 11/19/2022]
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Europium and terbium Schiff base peptide complexes as potential antimicrobial agents against Salmonella typhimurium and Pseudomonas aeruginosa. CHEMICAL PAPERS 2018. [DOI: 10.1007/s11696-018-0400-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Rahimi M, Hosseini MR, Bakhshi M. Biosynthesis of Ag
3
PO
4
nanoparticles in the absence of phosphate source using a phosphorus mineralising bacterium. IET Nanobiotechnol 2017. [DOI: 10.1049/iet-nbt.2017.0121] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Mohammadhosein Rahimi
- Department of Mining EngineeringIsfahan University of TechnologyIsfahan 84156‐83111Iran
| | | | - Mehran Bakhshi
- Department of Mining EngineeringIsfahan University of TechnologyIsfahan 84156‐83111Iran
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Hosnedlova B, Kepinska M, Skalickova S, Fernandez C, Ruttkay-Nedecky B, Malevu TD, Sochor J, Baron M, Melcova M, Zidkova J, Kizek R. A Summary of New Findings on the Biological Effects of Selenium in Selected Animal Species-A Critical Review. Int J Mol Sci 2017; 18:E2209. [PMID: 29065468 PMCID: PMC5666889 DOI: 10.3390/ijms18102209] [Citation(s) in RCA: 121] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 10/10/2017] [Accepted: 10/11/2017] [Indexed: 12/18/2022] Open
Abstract
Selenium is an essential trace element important for many physiological processes, especially for the functions of immune and reproductive systems, metabolism of thyroid hormones, as well as antioxidant defense. Selenium deficiency is usually manifested by an increased incidence of retention of placenta, metritis, mastitis, aborts, lowering fertility and increased susceptibility to infections. In calves, lambs and kids, the selenium deficiency demonstrates by WMD (white muscle disease), in foals and donkey foals, it is associated with incidence of WMD and yellow fat disease, and in pigs it causes VESD (vitamin E/selenium deficiency) syndrome. The prevention of these health disorders can be achieved by an adequate selenium supplementation to the diet. The review summarizes the survey of knowledge on selenium, its biological significance in the organism, the impact of its deficiency in mammalian livestock (comparison of ruminants vs. non-ruminants, herbivore vs. omnivore) and possibilities of its peroral administration. The databases employed were as follows: Web of Science, PubMed, MEDLINE and Google Scholar.
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Affiliation(s)
- Bozena Hosnedlova
- Department of Viticulture and Enology, Faculty of Horticulture, Mendel University in Brno, Valtická 337, CZ-691 44 Lednice, Czech Republic.
| | - Marta Kepinska
- Department of Biomedical and Environmental Analyses, Faculty of Pharmacy, Wroclaw Medical University, Borowska 211, 50-556 Wroclaw, Poland.
| | - Sylvie Skalickova
- Central Laboratory, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, Palackeho 1946/1, 612 42 Brno, Czech Republic.
| | - Carlos Fernandez
- School of Pharmacy and Life Sciences, Robert Gordon University, Garthdee Road, Aberdeen AB107GJ, UK.
| | - Branislav Ruttkay-Nedecky
- Central Laboratory, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, Palackeho 1946/1, 612 42 Brno, Czech Republic.
| | | | - Jiri Sochor
- Department of Viticulture and Enology, Faculty of Horticulture, Mendel University in Brno, Valtická 337, CZ-691 44 Lednice, Czech Republic.
| | - Mojmir Baron
- Department of Viticulture and Enology, Faculty of Horticulture, Mendel University in Brno, Valtická 337, CZ-691 44 Lednice, Czech Republic.
| | - Magdalena Melcova
- Department of Biochemistry and Microbiology, University of Chemistry and Technology, Technicka 3, 166 28 Prague, Czech Republic.
| | - Jarmila Zidkova
- Department of Biochemistry and Microbiology, University of Chemistry and Technology, Technicka 3, 166 28 Prague, Czech Republic.
| | - Rene Kizek
- Department of Biomedical and Environmental Analyses, Faculty of Pharmacy, Wroclaw Medical University, Borowska 211, 50-556 Wroclaw, Poland.
- Central Laboratory, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, Palackeho 1946/1, 612 42 Brno, Czech Republic.
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Nguyen TH, Vardhanabhuti B, Lin M, Mustapha A. Antibacterial properties of selenium nanoparticles and their toxicity to Caco-2 cells. Food Control 2017. [DOI: 10.1016/j.foodcont.2017.01.018] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Selenium nanoparticles as a nutritional supplement. Nutrition 2017; 33:83-90. [DOI: 10.1016/j.nut.2016.05.001] [Citation(s) in RCA: 243] [Impact Index Per Article: 34.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Revised: 04/14/2016] [Accepted: 05/01/2016] [Indexed: 12/31/2022]
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Cremonini E, Zonaro E, Donini M, Lampis S, Boaretti M, Dusi S, Melotti P, Lleo MM, Vallini G. Biogenic selenium nanoparticles: characterization, antimicrobial activity and effects on human dendritic cells and fibroblasts. Microb Biotechnol 2016; 9:758-771. [PMID: 27319803 PMCID: PMC5072192 DOI: 10.1111/1751-7915.12374] [Citation(s) in RCA: 137] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Revised: 05/16/2016] [Accepted: 06/03/2016] [Indexed: 12/20/2022] Open
Abstract
Tailored nanoparticles offer a novel approach to fight antibiotic-resistant microorganisms. We analysed biogenic selenium nanoparticles (SeNPs) of bacterial origin to determine their antimicrobial activity against selected pathogens in their planktonic and biofilm states. SeNPs synthesized by Gram-negative Stenotrophomonas maltophilia [Sm-SeNPs(-)] and Gram-positive Bacillus mycoides [Bm-SeNPs(+)] were active at low minimum inhibitory concentrations against a number of clinical isolates of Pseudomonas aeruginosa but did not inhibit clinical isolates of the yeast species Candida albicans and C. parapsilosis. However, the SeNPs were able to inhibit biofilm formation and also to disaggregate the mature glycocalyx in both P. aeruginosa and Candida spp. The Sm-SeNPs(-) and Bm-SeNPs(+) both achieved much stronger antimicrobial effects than synthetic selenium nanoparticles (Ch-SeNPs). Dendritic cells and fibroblasts exposed to Sm-SeNPs(-), Bm-SeNPs(+) and Ch-SeNPs did not show any loss of cell viability, any increase in the release of reactive oxygen species or any significant increase in the secretion of pro-inflammatory and immunostimulatory cytokines. Biogenic SeNPs therefore appear to be reliable candidates for safe medical applications, alone or in association with traditional antibiotics, to inhibit the growth of clinical isolates of P. aeruginosa or to facilitate the penetration of P. aeruginosa and Candida spp. biofilms by antimicrobial agents.
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Affiliation(s)
- Eleonora Cremonini
- Department of Diagnostic and Public Health, University of Verona, Strada Le Grazie 8, 37134, Verona, Italy
| | - Emanuele Zonaro
- Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134, Verona, Italy
| | - Marta Donini
- Department of Medicine, University of Verona, Strada Le Grazie 8, 37134, Verona, Italy
| | - Silvia Lampis
- Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134, Verona, Italy
| | - Marzia Boaretti
- Department of Diagnostic and Public Health, University of Verona, Strada Le Grazie 8, 37134, Verona, Italy
| | - Stefano Dusi
- Department of Medicine, University of Verona, Strada Le Grazie 8, 37134, Verona, Italy
| | - Paola Melotti
- Cystic Fibrosis Regional Center, AOUI Verona, Verona, Italy
| | - Maria M Lleo
- Department of Diagnostic and Public Health, University of Verona, Strada Le Grazie 8, 37134, Verona, Italy.
| | - Giovanni Vallini
- Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134, Verona, Italy.
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High throughput microencapsulation of Bacillus subtilis in semi-permeable biodegradable polymersomes for selenium remediation. Appl Microbiol Biotechnol 2016; 101:455-464. [PMID: 27744558 DOI: 10.1007/s00253-016-7896-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Revised: 09/18/2016] [Accepted: 09/27/2016] [Indexed: 12/25/2022]
Abstract
Encapsulating bacteria within constrained microenvironments can promote the manifestation of specialized behaviors. Using double-emulsion droplet-generating microfluidic synthesis, live Bacillus subtilis bacteria were encapsulated in a semi-permeable membrane composed of poly(ethylene glycol)-b-poly(D,L-lactic acid) (mPEG-PDLLA). This polymer membrane was sufficiently permeable to permit exponential bacterial growth, metabolite-induced gene expression, and rapid biofilm growth. The biodegradable microparticles retained structural integrity for several days and could be successfully degraded with time or sustained bacterial activity. Microencapsulated B. subtilis successfully captured and contained sodium selenite added outside the polymersomes, converting the selenite into elemental selenium nanoparticles that were selectively retained inside the polymer membrane. This remediation of selenium using polymersomes has high potential for reducing the toxicity of environmental selenium contamination, as well as allowing selenium to be harvested from areas not amenable to conventional waste or water treatment.
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Huang X, Chen X, Chen Q, Yu Q, Sun D, Liu J. Investigation of functional selenium nanoparticles as potent antimicrobial agents against superbugs. Acta Biomater 2016; 30:397-407. [PMID: 26518106 DOI: 10.1016/j.actbio.2015.10.041] [Citation(s) in RCA: 118] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Revised: 10/08/2015] [Accepted: 10/26/2015] [Indexed: 02/08/2023]
Abstract
Developing highly effective antibacterial agents is important for a wide range of applications. However, the emergence of multiple antibiotic-resistant bacteria poses a public health threat. Many developed agents have limited practical application due to chemical instability, low biocompatibility, and poor long-term antibacterial efficiency. In the following study, we synthesize a synergistic nanocomposite by conjugating quercetin (Qu) and acetylcholine (Ach) to the surface of Se nanoparticles (Qu-Ach@SeNPs). Quercetin has been reported to exhibit a wide range of biological activities related to their antibacterial activity and acetylcholine as a neurotransmitter, which can combine with the receptor on the bacterial cell. Arrows indicate NPs and arrowheads indicate compromised cell walls. The study demonstrated how Qu-Ach@SeNPs exhibit a synergistically enhanced antibacterial performance against the multidrug-resistant superbugs (MDRs) compared to Qu@SeNPs and Ach@SeNPs alone. Qu-Ach@SeNPs are effective against MDRs, such as Methicillin-resistant Staphylococcus aureus (MRSA), at a low dose. The mechanistic studies showed that Qu-Ach@SeNPs attach to the bacterial cell wall, causing irreversible damage to the membrane, and thereby achieving a remarkable synergistic antibacterial effect to inhibit MRSA. The findings suggested that the synergistic properties of quercetin and acetylcholine enhance the antibacterial activity of SeNPs. In this way, Qu-Ach@SeNPs comprise a new class of inorganic nano-antibacterial agents that can be used as useful applications in biomedical devices. STATEMENT OF SIGNIFICANCE The Qu-Ach@SeNPs have low cytotoxicity when tested on normal human cells in vitro. Qu-Ach@SeNPs are effective against MDRs, such as Methicillin-resistant S. aureus (MRSA), at a low dose. Importantly, Qu-Ach@SeNPs showed no emergence of resistance. These results suggest that Qu-Ach@SeNPs have excellent antibacterial activities. These agents can serve as good antibacterial agents against superbugs. Our data suggest that these antibacterial agents may have widespread application in the field of medicine for combating infectious diseases caused by MDRs, as well as other infectious diseases.
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de Souza LR, Muehlmann LA, Matos LC, Simón-Vázquez R, Lacava ZGM, De-Paula AMB, Mosiniewicz-Szablewska E, Suchocki P, Morais PC, González-Fernández Á, Báo SN, Azevedo RB. Antitumor activity and systemic effects of PVM/MA-shelled selol nanocapsules in lung adenocarcinoma-bearing mice. NANOTECHNOLOGY 2015; 26:505101. [PMID: 26580675 DOI: 10.1088/0957-4484/26/50/505101] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Selol is a semi-synthetic compound containing selenite that is effective against cancerous cells and safer for clinical applications in comparison with other inorganic forms of selenite. Recently, we have developed a formulation of poly(methyl vinyl ether-co-maleic anhydride)-shelled selol nanocapsules (SPN), which reduced the proliferative activity of lung adenocarcinoma cells and presented little deleterious effects on normal cells in in vitro studies. In this study, we report on the antitumor activity and systemic effects induced by this formulation in chemically induced lung adenocarcinoma-bearing mice. The in vivo antitumor activity of the SPN was verified by macroscopic quantification, immunohistochemistry and morphological analyses. Toxicity analyses were performed by evaluations of the kidney, liver, and spleen; analyses of hemogram and plasma levels of alanine aminotransferase, aspartate transaminase, urea, and creatinine; and DNA fragmentation and cell cycle activity of the bone marrow cells. Furthermore, we investigated the potential of the SPN formulation to cause hemolysis, activate the complement system, provoke an inflammatory response and change the conformation of the plasma proteins. Our results showed that the SPN reduced the area of the surface tumor nodules but not the total number of tumor nodules. The biochemical and hematological findings were suggestive of the low systemic toxicity of the SPN formulation. The surface properties of the selol nanocapsules point to characteristics that are consistent with the treatment of the tumors in vivo: low hemolytic activity, weak inflammatory reaction with no activation of the complement system, and mild or absent conformational changes of the plasma proteins. In conclusion, this report suggests that the SPN formulation investigated herein exhibits anti-tumoral effects against lung adenocarcinoma in vivo and is associated with low systemic toxicity and high biocompatibility.
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Affiliation(s)
- Ludmilla Regina de Souza
- Institute of Biological Sciences, Molecular Biology Programme, University of Brasília, Brasília/DF, 70910-900, Brazil
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Sonkusre P, Singh Cameotra S. Biogenic selenium nanoparticles inhibit Staphylococcus aureus adherence on different surfaces. Colloids Surf B Biointerfaces 2015; 136:1051-7. [PMID: 26590898 DOI: 10.1016/j.colsurfb.2015.10.052] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Revised: 10/30/2015] [Accepted: 10/30/2015] [Indexed: 10/22/2022]
Abstract
The global issue of nosocomial infection is owing to bacterial colonization and biofilm formation on medical devices which primarily affects critically ill and/or immuno-compromised patients and also leads to malfunctioning of the devices. Therefore, it is desirable to prevent bacterial colonization on these devices by coating with a non toxic antimicrobial agent or bacterial adherence inhibitor. Here we have shown Bacillus licheniformis JS2 derived selenium nanoparticles (SeNPs) inhibit Staphylococcus aureus adherence and micro-colony formation on polystyrene, glass, and catheter surface. Results indicated that, the coating of these non toxic biogenic SeNPs, at a concentration of 0.5 mgSe/ml, prohibits bacterial load to more than 60% on glass and catheter surface, when incubated at 4 °C for 24h in phosphate buffered saline. Furthermore, confocal and electron microscopic observations strongly suggested the inhibition of biofilm and micro-colony formation on SeNP coated glass and catheter surfaces when cultured at 37 °C for 72 h in a nutrient rich medium. The study suggests that coating of biogenic SeNPs on medical devices could be an alternative approach for prevention of biofilm related infections.
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Affiliation(s)
- Praveen Sonkusre
- Institute of Microbial Technology, Sector 39 A, Chandigarh 160036, India
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Influence of microbiome species in hard-to-heal wounds on disease severity and treatment duration. Braz J Infect Dis 2015; 19:604-13. [PMID: 26518264 PMCID: PMC9425364 DOI: 10.1016/j.bjid.2015.08.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Revised: 08/04/2015] [Accepted: 08/08/2015] [Indexed: 01/30/2023] Open
Abstract
BACKGROUND Infections, mostly those associated with colonization of wound by different pathogenic microorganisms, are one of the most serious health complications during a medical treatment. Therefore, this study is focused on the isolation, characterization, and identification of microorganisms prevalent in superficial wounds of patients (n=50) presenting with bacterial infection. METHODS After successful cultivation, bacteria were processed and analyzed. Initially the identification of the strains was performed through matrix-assisted laser desorption/ionization time-of-flight mass spectrometry based on comparison of protein profiles (2-30kDa) with database. Subsequently, bacterial strains from infected wounds were identified by both matrix-assisted laser desorption/ionization time-of-flight mass spectrometry and sequencing of 16S rRNA gene 108. RESULTS The most prevalent species was Staphylococcus aureus (70%), and out of those 11% turned out to be methicillin-resistant (mecA positive). Identified strains were compared with patients' diagnoses using the method of artificial neuronal network to assess the association between severity of infection and wound microbiome species composition. Artificial neuronal network was subsequently used to predict patients' prognosis (n=9) with 85% success. CONCLUSIONS In all of 50 patients tested bacterial infections were identified. Based on the proposed artificial neuronal network we were able to predict the severity of the infection and length of the treatment.
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Cihalova K, Chudobova D, Michalek P, Moulick A, Guran R, Kopel P, Adam V, Kizek R. Staphylococcus aureus and MRSA Growth and Biofilm Formation after Treatment with Antibiotics and SeNPs. Int J Mol Sci 2015; 16:24656-72. [PMID: 26501270 PMCID: PMC4632770 DOI: 10.3390/ijms161024656] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 09/03/2015] [Accepted: 09/14/2015] [Indexed: 12/14/2022] Open
Abstract
Methicillin-resistant Staphylococcus aureus (MRSA) is a dangerous pathogen resistant to β-lactam antibiotics. Due to its resistance, it is difficult to manage the infections caused by this strain. We examined this issue in terms of observation of the growth properties and ability to form biofilms in sensitive S. aureus and MRSA after the application of antibiotics (ATBs)-ampicillin, oxacillin and penicillin-and complexes of selenium nanoparticles (SeNPs) with these ATBs. The results suggest the strong inhibition effect of SeNPs in complexes with conventional ATBs. Using the impedance method, a higher disruption of biofilms was observed after the application of ATB complexes with SeNPs compared to the group exposed to ATBs without SeNPs. The biofilm formation was intensely inhibited (up to 99%±7% for S. aureus and up to 94%±4% for MRSA) after application of SeNPs in comparison with bacteria without antibacterial compounds whereas ATBs without SeNPs inhibited S. aureus up to 79%±5% and MRSA up to 16%±2% only. The obtained results provide a basis for the use of SeNPs as a tool for the treatment of bacterial infections, which can be complicated because of increasing resistance of bacteria to conventional ATB drugs.
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Affiliation(s)
- Kristyna Cihalova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic.
- Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-616 00 Brno, Czech Republic.
| | - Dagmar Chudobova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic.
- Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-616 00 Brno, Czech Republic.
| | - Petr Michalek
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic.
- Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-616 00 Brno, Czech Republic.
| | - Amitava Moulick
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic.
- Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-616 00 Brno, Czech Republic.
| | - Roman Guran
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic.
- Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-616 00 Brno, Czech Republic.
| | - Pavel Kopel
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic.
- Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-616 00 Brno, Czech Republic.
| | - Vojtech Adam
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic.
- Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-616 00 Brno, Czech Republic.
- Department of Microelectronics, Faculty of Electrical Engineering and Communication, Brno University of Technology, Technicka 3058/10, CZ-616 00 Brno, Czech Republic.
| | - Rene Kizek
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic.
- Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-616 00 Brno, Czech Republic.
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