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Dvoretckaia A, Egorova T, Dzhuzha A, Levit M, Sivtsov E, Demyanova E, Korzhikova-Vlakh E. Polymyxin B Conjugates with Bio-Inspired Synthetic Polymers of Different Nature. Int J Mol Sci 2023; 24:ijms24031832. [PMID: 36768160 PMCID: PMC9915011 DOI: 10.3390/ijms24031832] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 01/12/2023] [Accepted: 01/14/2023] [Indexed: 01/19/2023] Open
Abstract
The emergence and growth of bacterial resistance to antibiotics poses an enormous threat to humanity in the future. In this regard, the discovery of new antibiotics and the improvement of existing ones is a priority task. In this study, we proposed the synthesis of new polymeric conjugates of polymyxin B, which is a clinically approved but limited-use peptide antibiotic. In particular, three carboxylate-bearing polymers and one synthetic glycopolymer were selected for conjugation with polymyxin B (PMX B), namely, poly(α,L-glutamic acid) (PGlu), copolymer of L-glutamic acid and L-phenylalanine (P(Glu-co-Phe)), copolymer of N-vinyl succinamic acid and N-vinylsuccinimide (P(VSAA-co-VSI)), and poly(2-deoxy-2-methacrylamido-D-glucose) (PMAG). Unlike PGlu and PMAG, P(Glu-co-Phe) and P(VSAA-co-VSI) are amphiphilic and form nanoparticles in aqueous media. A number of conjugates with different polymyxin B loading were synthesized and characterized. In addition, the complex conjugates of PGLu or PMAG with polymyxin B and deferoxamine (siderophore) were obtained. A release of PMX B from Schiff base and amide-linked polymer conjugates was studied in model buffer media with pH 7.4 and 5.8. In both cases, a more pronounced release was observed under slightly acidic conditions. The cytotoxicity of free polymers and PMX B as well as their conjugates was examined in human embryonic kidney cells (HEK 293T cell line). All conjugates demonstrated reduced cytotoxicity compared to the free antibiotic. Finally, the antimicrobial efficacy of the conjugates against Pseudomonas aeruginosa was determined and compared. The lowest values of minimum inhibitory concentrations (MIC) were observed for polymyxin B and polymyxin B/deferoxamine conjugated with PMAG. Among the polymers tested, PMAG appears to be the most promising carrier for delivery of PMX B in conjugated form due to the good preservation of the antimicrobial properties of PMX B and the ability of controlled drug release.
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Affiliation(s)
- Anna Dvoretckaia
- Institute of Chemistry, Saint-Petersburg State University, 198504 St. Petersburg, Russia
- Institute of Macromolecular Compounds, Russian Academy of Sciences, 199004 St. Petersburg, Russia
| | - Tatiana Egorova
- State Research Institute of Highly Pure Biopreparations FMBA of Russia, 197110 St. Petersburg, Russia
| | - Apollinariia Dzhuzha
- Institute of Chemistry, Saint-Petersburg State University, 198504 St. Petersburg, Russia
| | - Mariia Levit
- Institute of Macromolecular Compounds, Russian Academy of Sciences, 199004 St. Petersburg, Russia
| | - Eugene Sivtsov
- Institute of Macromolecular Compounds, Russian Academy of Sciences, 199004 St. Petersburg, Russia
- Department of Physical Chemistry, Saint-Petersburg State Institute of Technology (Technical University), 190013 St. Petersburg, Russia
| | - Elena Demyanova
- State Research Institute of Highly Pure Biopreparations FMBA of Russia, 197110 St. Petersburg, Russia
| | - Evgenia Korzhikova-Vlakh
- Institute of Macromolecular Compounds, Russian Academy of Sciences, 199004 St. Petersburg, Russia
- Correspondence:
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Kumar P, Shaikh AA, Kumar P, Gupta VK, Dhyani R, Sharma TK, Hussain A, Gangele K, Poluri KM, Rao KN, Malik RK, Pathania R, Navani NK. Double-Edged Nanobiotic Platform with Protean Functionality: Leveraging the Synergistic Antibacterial Activity of a Food-Grade Peptide to Mitigate Multidrug-Resistant Bacterial Pathogens. ACS APPLIED MATERIALS & INTERFACES 2022; 14:20652-20668. [PMID: 35486715 DOI: 10.1021/acsami.2c01385] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
While persistent efforts are being made to develop a novel arsenal against bacterial pathogens, the development of such materials remains a formidable challenge. One such strategy is to develop a multimodel antibacterial agent which will synergistically combat bacterial pathogens, including multidrug-resistant bacteria. Herein, we used pediocin, a class IIa bacteriocin, to decorate Ag° and developed a double-edged nanoplatform (Pd-SNPs) that inherits intrinsic properties of both antibacterial moieties, which engenders strikingly high antibacterial potency against a broad spectrum of bacterial pathogens including the ESKAPE category without displaying adverse cytotoxicity. The enhanced antimicrobial activity of Pd-SNPs is due to their higher affinity with the bacterial cell wall, which allows Pd-SNPs to penetrate the outer membrane, inducing membrane depolarization and the disruption of membrane integrity. Bioreporter assays revealed the upregulation of cpxP, degP, and sosX genes, triggering the burst of reactive oxygen species which eventually cause bacterial cell death. Pd-SNPs prevented biofilm formation, eradicated established biofilms, and inhibited persister cells. Pd-SNPs display unprecedented advantages because they are heat-resistant, retain antibacterial activity in human serum, and alleviate vancomycin intermediate Staphylococcus aureus (VISA) infection in the mouse model. In addition, Pd-SNPs wrapped in biodegradable nanofibers mitigated Listeria monocytogenes in cheese samples. Collectively, Pd-SNPs exhibited excellent biocompatibility and in vivo therapeutic potency without allowing foreseeable resistance acquisition by pathogens. These findings underscore new avenues for using a potent biocompatible nanobiotic platform to combat a wide range of bacterial pathogens.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Korasapati Nageswara Rao
- College of Dairy Technology, Sri Venkateswara Veterinary University, Tirupati, Andhra Pradesh 517502, India
| | - Ravinder Kumar Malik
- Department of Dairy Microbiology, National Dairy Research Institute, Karnal, Haryana 132001, India
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Antibacterial activity of MPA-capped CdTe and Ag-doped CdTe nanocrystals: Showing different activity against gram-positive and gram-negative bacteria. CHEMICAL PAPERS 2020. [DOI: 10.1007/s11696-020-01170-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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4
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Karuppaiah A, Rajan R, Hariharan S, Balasubramaniam DK, Gregory M, Sankar V. Synthesis and Characterization of Folic Acid Conjugated Gemcitabine Tethered Silver Nanoparticles (FA-GEM-AgNPs) for Targeted Delivery. Curr Pharm Des 2020; 26:3141-3146. [DOI: 10.2174/1381612826666200316143239] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Accepted: 02/20/2020] [Indexed: 11/22/2022]
Abstract
Background:
Silver nanoparticles (AgNPs) have attracted considerable interest in the medical industry
due to their physicochemical properties, small size, and surface plasmon behavior. Their smaller particle size and
instability in blood circulation leads to toxicity due to its aggregation as Ag+ ions and accumulation at the deepseated
organ. In the present study, we aimed at reducing the toxicity of AgNPs by conjugation with an anticancer
drug GEM and to improve their internalization through folate receptors-mediated endocytosis by capping the
nanoparticles with folic acid (FA).
Methods:
One-pot facile synthesis of FA capped silver nanoparticles (FA-AgNPs) has been achieved by using FA
as a reducing agent. FA-AgNPs were mixed with Gemcitabine (GEM) to obtain tethered FA-GEM-AgNPs.
Nanoparticles were characterized by Dynamic Light Scattering (DLS), UV-Visible spectroscopy, Transmission
Electron Microscopy (TEM), Energy Dispersive X-ray Analysis (EDAX), Selected Area Electron Diffraction
(SAED), and Atomic Absorption Spectroscopy (AAS). The 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium
bromide (MTT) assay was carried out to determine the cytotoxic effect of the prepared nanoformulations. The
apoptotic cell death induced by FA-GEM-AgNPs in breast cancer cells were monitored with Acridine orange
(AO)/Ethidium Bromide (EtBr) staining.
Conclusion:
Compared to GEM and AgNPs, FA-GEM-AgNPs showed enhanced cytotoxic effect and internalization
in MDA-MB-453 breast cancer cell line. FA-GEM-AgNPs could be an ideal candidate for targeting cancer
cells via folate receptor-mediated endocytosis.
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Affiliation(s)
- Arjunan Karuppaiah
- Department of pharmaceutics, PSG College of Pharmacy, Coimbatore 641 004, Tamil Nadu, India, Affiliated to TN Dr. M.G.R Medical University, Guindy, Chennai 600032, Tamil Nadu, India
| | - Ravikumar Rajan
- Department of pharmacology, PSG College of Pharmacy, Coimbatore 641 004, Tamil Nadu, India
| | - Sivaram Hariharan
- Department of pharmaceutical chemistry, PSG College of Pharmacy, Coimbatore 641 004, Tamil Nadu, India
| | - Dinesh K. Balasubramaniam
- Department of pharmaceutics, St James College of Pharmaceutical sciences, Chalakudi 680 307, Kerala, India
| | - Marslin Gregory
- Sathyabama Institute of Science and Technology, Jeppiaar Nagar, Rajiv Gandhi Road, Chennai, Tamil Nadu, India
| | - Veintramuthu Sankar
- Department of pharmaceutics, PSG College of Pharmacy, Coimbatore 641 004, Tamil Nadu, India, Affiliated to TN Dr. M.G.R Medical University, Guindy, Chennai 600032, Tamil Nadu, India
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Kumari A, Thakur N, Vashishtt J, Singh RR. Structural, luminescent and antimicrobial properties of ZnS and CdSe/ZnS quantum dot structures originated by precursors. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 229:117962. [PMID: 31865104 DOI: 10.1016/j.saa.2019.117962] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 12/03/2019] [Accepted: 12/13/2019] [Indexed: 06/10/2023]
Abstract
ZnS quantum dots (QDs) and their core/shell (CdSe/ZnS) structures were studied for Zn based precursor reactivities. ZnS and CdSe/ZnS QDs were prepared selecting aqueous route and then characterized via XRD, TEM, EDX, PL, RAMAN and FTIR practices. Core/shell nanostructures were synthesized by taking dissimilar precursors for the shell formation. Photoluminescence spectra of prepared QDs corroborate the effectual luminescence. Prepared QDs have large surface area that make them useful alternative as organic antimicrobial agent which are highly irritant and unstable. Study of antimicrobial behavior of QD structures was carried out by disk diffusion method. Antimicrobial study of QDs and their core/shell structures was performed against gram negative and gram positive bacteria, E. coli, A. baumanni and Bacillus subtilis respectively. It is found that elemental composition and size of QDs plays important role in antimicrobial behavior. Prepared QDs are fluorescent and have a key role in complex microbial population studies and identification of bacteria.
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Affiliation(s)
- Asha Kumari
- Department of Physics and Materials Science (Nanotechnology Laboratory), Jaypee University of Information Technology, Waknaghat, Solan, 173234, India
| | - Nutan Thakur
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat, Solan, 173234, India
| | - Jitendraa Vashishtt
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat, Solan, 173234, India
| | - Ragini Raj Singh
- Department of Physics and Materials Science (Nanotechnology Laboratory), Jaypee University of Information Technology, Waknaghat, Solan, 173234, India.
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Williams DN, Saar JS, Bleicher V, Rau S, Lienkamp K, Rosenzweig Z. Poly(oxanorbornene)-Coated CdTe Quantum Dots as Antibacterial Agents. ACS APPLIED BIO MATERIALS 2020; 3:1097-1104. [PMID: 33215080 DOI: 10.1021/acsabm.9b01045] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
In this study, synthetic mimics of antimicrobial peptides based on poly(oxanorbornene) molecules (or PONs) were used to coat CdTe quantum dots (QDs). These PONs-CdTe QDs were investigated for their activity against Escherichia coli, a bacterium with antibiotic resistant strains. At the same time, the antibacterial activity of the PONs-CdTe QDs was compared to the antibacterial activity of free PONs and free CdTe QDs. The observed antibacterial activity of the PONs-CdTe QDs was additive and concentration dependent. The conjugates had a significantly lower minimum inhibitory concentration (MIC) than the free PONs and QDs, particularly for PONs-CdTe QDs which contained PONs of high amine density. The maximum activity of PONs-CdTe QDs was not realized by conjugating PONs with the highest intrinsic antibacterial activity (i.e., the lowest MIC in solution as free PONs), indicating that the mechanism of action for free PONs and PONs-CdTe QDs is different. Equally important, conjugating PONs to CdTe QDs decreased their hemolytic activity against red blood cells compared to free PONs, lending to higher therapeutic indices against E. coli. This could potentially enable the use of higher, and therefore more effective, PONs-QDs concentrations when addressing bacterial contamination, without concerns of adverse impacts on mammalian cells and organisms.
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Affiliation(s)
| | | | | | - Sibylle Rau
- Faculty of Medicine, Albert-Ludwigs-Universität, Freiburg, Germany
| | | | - Zeev Rosenzweig
- University of Maryland, Baltimore County, Baltimore, Maryland
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7
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Makowski M, Silva ÍC, Pais do Amaral C, Gonçalves S, Santos NC. Advances in Lipid and Metal Nanoparticles for Antimicrobial Peptide Delivery. Pharmaceutics 2019; 11:E588. [PMID: 31717337 PMCID: PMC6920925 DOI: 10.3390/pharmaceutics11110588] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 10/29/2019] [Accepted: 10/31/2019] [Indexed: 02/06/2023] Open
Abstract
Antimicrobial peptides (AMPs) have been described as excellent candidates to overcome antibiotic resistance. Frequently, AMPs exhibit a wide therapeutic window, with low cytotoxicity and broad-spectrum antimicrobial activity against a variety of pathogens. In addition, some AMPs are also able to modulate the immune response, decreasing potential harmful effects such as sepsis. Despite these benefits, only a few formulations have successfully reached clinics. A common flaw in the druggability of AMPs is their poor pharmacokinetics, common to several peptide drugs, as they may be degraded by a myriad of proteases inside the organism. The combination of AMPs with carrier nanoparticles to improve delivery may enhance their half-life, decreasing the dosage and thus, reducing production costs and eventual toxicity. Here, we present the most recent advances in lipid and metal nanodevices for AMP delivery, with a special focus on metal nanoparticles and liposome formulations.
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Affiliation(s)
| | | | | | - Sónia Gonçalves
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Av. Prof. Egas Moniz, 1649-028 Lisbon, Portugal; (M.M.); (Í.C.S.); (C.P.d.A.)
| | - Nuno C. Santos
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Av. Prof. Egas Moniz, 1649-028 Lisbon, Portugal; (M.M.); (Í.C.S.); (C.P.d.A.)
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8
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Shams S, Khan AU, Yuan Q, Ahmad W, Wei Y, Khan ZUH, Shams S, Ahmad A, Rahman AU, Ullah S. Facile and eco-benign synthesis of Au@Fe2O3 nanocomposite: Efficient photocatalytic, antibacterial and antioxidant agent. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2019; 199:111632. [DOI: 10.1016/j.jphotobiol.2019.111632] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 08/17/2019] [Accepted: 09/12/2019] [Indexed: 10/26/2022]
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9
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Jelinkova P, Mazumdar A, Sur VP, Kociova S, Dolezelikova K, Jimenez AMJ, Koudelkova Z, Mishra PK, Smerkova K, Heger Z, Vaculovicova M, Moulick A, Adam V. Nanoparticle-drug conjugates treating bacterial infections. J Control Release 2019; 307:166-185. [DOI: 10.1016/j.jconrel.2019.06.013] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Revised: 06/10/2019] [Accepted: 06/12/2019] [Indexed: 12/19/2022]
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10
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Khatua A, Priyadarshini E, Rajamani P, Patel A, Kumar J, Naik A, Saravanan M, Barabadi H, Prasad A, Ghosh L, Paul B, Meena R. Phytosynthesis, Characterization and Fungicidal Potential of Emerging Gold Nanoparticles Using Pongamia pinnata Leave Extract: A Novel Approach in Nanoparticle Synthesis. J CLUST SCI 2019. [DOI: 10.1007/s10876-019-01624-6] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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11
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Cotton Cellulose-CdTe Quantum Dots Composite Films with Inhibition of Biofilm-Forming S. aureus. FIBERS 2019. [DOI: 10.3390/fib7060057] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A cellulose-cadmium (Cd)-tellurium (TE) quantum dots (QDs) composite film was successfully synthesized by incorporating CdTe QDs onto a cellulose matrix derived from waste cotton linters. Cellulose-CdTe QDs composite film was characterized by field emission scanning electron microscopy (FE-SEM), energy dispersive X-ray (EDX) spectroscopy, Fourier transform infrared (FTIR) spectroscopy, thermogravimetric analysis (TGA), and X-ray diffraction (XRD). The antibacterial activity of the prepared composite film was investigated using the multidrug-resistance (MTR) Staphylococcus aureus bacteria. In vitro antibacterial assays demonstrated that CdTe QDs composite film can efficiently inhibit biofilm formation. Our results showed that the cellulose-CdTe QDs composite film is a promising candidate for biomedical applications including wound dressing, medical instruments, burn treatments, implants, and other biotechnology fields.
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12
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Khandelwal P, Singh DK, Poddar P. Advances in the Experimental and Theoretical Understandings of Antibiotic Conjugated Gold Nanoparticles for Antibacterial Applications. ChemistrySelect 2019. [DOI: 10.1002/slct.201900083] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Puneet Khandelwal
- Physical & Materials Chemistry DivisionCSIR-National Chemical Laboratory Pune - 411008 India
| | - Dheeraj K. Singh
- Department of PhysicsInstitute of Infrastructure Technology Research & Management Ahmedabad - 380026 India
| | - Pankaj Poddar
- Physical & Materials Chemistry DivisionCSIR-National Chemical Laboratory Pune - 411008 India
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13
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Carvalho PM, Felício MR, Santos NC, Gonçalves S, Domingues MM. Application of Light Scattering Techniques to Nanoparticle Characterization and Development. Front Chem 2018; 6:237. [PMID: 29988578 PMCID: PMC6026678 DOI: 10.3389/fchem.2018.00237] [Citation(s) in RCA: 136] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Accepted: 06/04/2018] [Indexed: 01/07/2023] Open
Abstract
Over the years, the scientific importance of nanoparticles for biomedical applications has increased. The high stability and biocompatibility, together with the low toxicity of the nanoparticles developed lead to their use as targeted drug delivery systems, bioimaging systems, and biosensors. The wide range of nanoparticles size, from 10 nm to 1 μm, as well as their optical properties, allow them to be studied using microscopy and spectroscopy techniques. In order to be effectively used, the physicochemical properties of nanoparticle formulations need to be taken into account, namely, particle size, surface charge distribution, surface derivatization and/or loading capacity, and related interactions. These properties need to be optimized considering the final nanoparticle intended biodistribution and target. In this review, we cover light scattering based techniques, namely dynamic light scattering and zeta-potential, used for the physicochemical characterization of nanoparticles. Dynamic light scattering is used to measure nanoparticles size, but also to evaluate their stability over time in suspension, at different pH and temperature conditions. Zeta-potential is used to characterize nanoparticles surface charge, obtaining information about their stability and surface interaction with other molecules. In this review, we focus on nanoparticle characterization and application in infection, cancer and cardiovascular diseases.
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Affiliation(s)
- Patrícia M Carvalho
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Mário R Felício
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Nuno C Santos
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Sónia Gonçalves
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Marco M Domingues
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
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14
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Li Z, Hu Y, Yang Y, Lu Z, Wang Y. Antimicrobial resistance in livestock: antimicrobial peptides provide a new solution for a growing challenge. Anim Front 2018; 8:21-29. [PMID: 32002215 PMCID: PMC6951932 DOI: 10.1093/af/vfy005] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Affiliation(s)
- Zhi Li
- Laboratory of Animal Nutrition and Feed Science, Department of Animal Science, Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Yuhan Hu
- Laboratory of Animal Nutrition and Feed Science, Department of Animal Science, Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Yuanyuan Yang
- Laboratory of Animal Nutrition and Feed Science, Department of Animal Science, Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Zeqing Lu
- Laboratory of Animal Nutrition and Feed Science, Department of Animal Science, Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Yizhen Wang
- Laboratory of Animal Nutrition and Feed Science, Department of Animal Science, Zhejiang University, Hangzhou, Zhejiang Province, China
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15
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Aljabali AAA, Akkam Y, Al Zoubi MS, Al-Batayneh KM, Al-Trad B, Abo Alrob O, Alkilany AM, Benamara M, Evans DJ. Synthesis of Gold Nanoparticles Using Leaf Extract of Ziziphus zizyphus and their Antimicrobial Activity. NANOMATERIALS 2018; 8:nano8030174. [PMID: 29562669 PMCID: PMC5869665 DOI: 10.3390/nano8030174] [Citation(s) in RCA: 128] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 03/14/2018] [Accepted: 03/15/2018] [Indexed: 12/12/2022]
Abstract
(1) Background: There is a growing need for the development of new methods for the synthesis of nanoparticles. The interest in such particles has raised concerns about the environmental safety of their production methods; (2) Objectives: The current methods of nanoparticle production are often expensive and employ chemicals that are potentially harmful to the environment, which calls for the development of “greener” protocols. Herein we describe the synthesis of gold nanoparticles (AuNPs) using plant extracts, which offers an alternative, efficient, inexpensive, and environmentally friendly method to produce well-defined geometries of nanoparticles; (3) Methods: The phytochemicals present in the aqueous leaf extract acted as an effective reducing agent. The generated AuNPs were characterized by Transmission electron microscopy (TEM), Scanning electron microscope (SEM), and Atomic Force microscopy (AFM), X-ray diffraction (XRD), UV-visible spectroscopy, energy dispersive X-ray (EDX), and thermogravimetric analyses (TGA); (4) Results and Conclusions: The prepared nanoparticles were found to be biocompatible and exhibited no antimicrobial or antifungal effect, deeming the particles safe for various applications in nanomedicine. TGA analysis revealed that biomolecules, which were present in the plant extract, capped the nanoparticles and acted as stabilizing agents.
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Affiliation(s)
- Alaa A A Aljabali
- Faculty of Pharmacy, Yarmouk University, P.O.BOX 566, Irbid 21163, Jordan.
| | - Yazan Akkam
- Faculty of Pharmacy, Yarmouk University, P.O.BOX 566, Irbid 21163, Jordan.
| | - Mazhar Salim Al Zoubi
- Department of Basic Medical Sciences, Faculty of Medicine, Yarmouk University, Irbid 21163, Jordan.
| | - Khalid M Al-Batayneh
- Department of Biological Science, Yarmouk University, P.O.BOX 566, Irbid 21163, Jordan.
| | - Bahaa Al-Trad
- Department of Biological Science, Yarmouk University, P.O.BOX 566, Irbid 21163, Jordan.
| | - Osama Abo Alrob
- Faculty of Pharmacy, Yarmouk University, P.O.BOX 566, Irbid 21163, Jordan.
| | - Alaaldin M Alkilany
- School of Pharmacy, University of Jordan, Aljubeiha, Amman, Jordan 11942, Jordan.
| | - Mourad Benamara
- Institute for Nanoscience, University of Arkansas, Fayetteville, AR 72701, USA.
| | - David J Evans
- John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK.
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16
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Delivery systems for antimicrobial peptides. Adv Colloid Interface Sci 2017; 242:17-34. [PMID: 28159168 DOI: 10.1016/j.cis.2017.01.005] [Citation(s) in RCA: 144] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 01/24/2017] [Accepted: 01/24/2017] [Indexed: 12/18/2022]
Abstract
Due to rapidly increasing resistance development against conventional antibiotics, finding novel approaches for the treatment of infections has emerged as a key health issue. Antimicrobial peptides (AMPs) have attracted interest in this context, and there is by now a considerable literature on the identification such peptides, as well as on their optimization to reach potent antimicrobial and anti-inflammatory effects at simultaneously low toxicity against human cells. In comparison, delivery systems for antimicrobial peptides have attracted considerably less interest. However, such delivery systems are likely to play a key role in the development of potent and safe AMP-based therapeutics, e.g., through reducing chemical or biological degradation of AMPs either in the formulation or after administration, by reducing adverse side-effects, by controlling AMP release rate, by promoting biofilm penetration, or through achieving co-localization with intracellular pathogens. Here, an overview is provided of the current understanding of delivery systems for antimicrobial peptides, with special focus on AMP-carrier interactions, as well as consequences of these interactions for antimicrobial and related biological effects of AMP-containing formulations.
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Oh E, Liu R, Nel A, Gemill KB, Bilal M, Cohen Y, Medintz IL. Meta-analysis of cellular toxicity for cadmium-containing quantum dots. NATURE NANOTECHNOLOGY 2016; 11:479-86. [PMID: 26925827 DOI: 10.1038/nnano.2015.338] [Citation(s) in RCA: 280] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Accepted: 12/16/2015] [Indexed: 04/14/2023]
Abstract
Understanding the relationships between the physicochemical properties of engineered nanomaterials and their toxicity is critical for environmental and health risk analysis. However, this task is confounded by material diversity, heterogeneity of published data and limited sampling within individual studies. Here, we present an approach for analysing and extracting pertinent knowledge from published studies focusing on the cellular toxicity of cadmium-containing semiconductor quantum dots. From 307 publications, we obtain 1,741 cell viability-related data samples, each with 24 qualitative and quantitative attributes describing the material properties and experimental conditions. Using random forest regression models to analyse the data, we show that toxicity is closely correlated with quantum dot surface properties (including shell, ligand and surface modifications), diameter, assay type and exposure time. Our approach of integrating quantitative and categorical data provides a roadmap for interrogating the wide-ranging toxicity data in the literature and suggests that meta-analysis can help develop methods for predicting the toxicity of engineered nanomaterials.
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Affiliation(s)
- Eunkeu Oh
- Optical Sciences Division, Code 5611, US Naval Research Laboratory, Washington, Washington DC 20375, USA
- Sotera Defense Solutions, Columbia, Maryland 21046, USA
| | - Rong Liu
- Institute of the Environment and Sustainability, University of California, Los Angeles, California 90095-1496, USA
- Center for Environmental Implications of Nanotechnology, University of California, Los Angeles, California 90095-7227, USA
| | - Andre Nel
- Center for Environmental Implications of Nanotechnology, University of California, Los Angeles, California 90095-7227, USA
- Department of Medicine, Division of NanoMedicine, University of California, Los Angeles, California 90095, USA
| | - Kelly Boeneman Gemill
- Center for Bio/Molecular Science and Engineering, Code 6900, US Naval Research Laboratory, SW Washington, Washington DC 20375, USA
| | - Muhammad Bilal
- Center for Environmental Implications of Nanotechnology, University of California, Los Angeles, California 90095-7227, USA
| | - Yoram Cohen
- Institute of the Environment and Sustainability, University of California, Los Angeles, California 90095-1496, USA
- Center for Environmental Implications of Nanotechnology, University of California, Los Angeles, California 90095-7227, USA
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, California 90095-1592, USA
| | - Igor L Medintz
- Center for Bio/Molecular Science and Engineering, Code 6900, US Naval Research Laboratory, SW Washington, Washington DC 20375, USA
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18
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Rai M, Ingle AP, Gaikwad S, Padovani FH, Alves M. The role of nanotechnology in control of human diseases: perspectives in ocular surface diseases. Crit Rev Biotechnol 2015; 36:777-87. [PMID: 26189355 DOI: 10.3109/07388551.2015.1036002] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Nanotechnology is the creation and use of materials and devices on the same scale as molecules and intracellular structures, typically less than 100 nm in size. It is an emerging science and has made its way into pharmaceuticals to significantly improve the delivery and efficacy of drugs in a number of therapeutic areas, due to development of various nanoparticle-based products. In recent years, there has been increasing evidence that nanotechnology can help to overcome many of the ocular diseases and hence researchers are keenly interested in this science. Nanomedicines offer promise as viable alternatives to conventional drops, gels or ointments to improve drug delivery to the eye. Because of their small size, they are well tolerated, thus preventing washout, increase bioavailability and also help in specific drug delivery. This review describes the application of nanotechnology in the control of human diseases with special emphasis on various eye and ocular surfaces diseases.
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Affiliation(s)
- Mahendra Rai
- a Nanobiotechnology Laboratory, Department of Biotechnology , Sant Gadge Baba Amravati University , Amravati , Maharashtra , India
| | - Avinash P Ingle
- a Nanobiotechnology Laboratory, Department of Biotechnology , Sant Gadge Baba Amravati University , Amravati , Maharashtra , India
| | - Swapnil Gaikwad
- a Nanobiotechnology Laboratory, Department of Biotechnology , Sant Gadge Baba Amravati University , Amravati , Maharashtra , India
| | - Felipe Hering Padovani
- b Institute of Medicine, Pontific Catholic University of Campinas (PUCC) , Campinas , Brazil , and
| | - Monica Alves
- c Department of Ophthalmology , State University of Campinas (UNICAMP) , Campinas , Brazil
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19
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Sun B, Liu R, Ye N, Xiao ZD. Comprehensive evaluation of microRNA expression profiling reveals the neural signaling specific cytotoxicity of superparamagnetic iron oxide nanoparticles (SPIONs) through N-methyl-D-aspartate receptor. PLoS One 2015; 10:e0121671. [PMID: 25798908 PMCID: PMC4370573 DOI: 10.1371/journal.pone.0121671] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2014] [Accepted: 02/03/2015] [Indexed: 01/31/2023] Open
Abstract
Though nanomaterials are considered as drug carriers or imaging reagents targeting the central nervous system their cytotoxicity effect on neuronal cells has not been well studied. In this study, we treated PC12 cells, a model neuronal cell line, with a nanomaterial that is widely accepted for medical use, superparamagnetic iron oxide nanoparticles (SPIONs). Our results suggest that, after treated with SPIONs, the expression pattern of the cellular miRNAs changed widely in PC12 cells. As potential miRNA targets, NMDAR, one of the candidate mRNAs that were selected using GO and KEGG pathway enrichment, was significantly down regulated by SPIONs treatment. We further illustrated that SPIONs may induce cell death through NMDAR suppression. This study revealed a NMDAR neurotoxic effect of SPIONs and provides a reliable approach for assessing the neurocytotoxic effects of nanomaterials based on the comprehensive annotation of miRNA profiling.
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Affiliation(s)
- Bo Sun
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, P. R. China
- Institute of Microbiology, School of Biological Sciences, Seoul National University, Seoul, South Korea
| | - Rui Liu
- Laboratory of Biophysics, School of Biological Sciences, Seoul National University, Seoul, South Korea
| | - Nan Ye
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, P. R. China
| | - Zhong-Dang Xiao
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, P. R. China
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20
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Lambadi PR, Sharma TK, Kumar P, Vasnani P, Thalluri SM, Bisht N, Pathania R, Navani NK. Facile biofunctionalization of silver nanoparticles for enhanced antibacterial properties, endotoxin removal, and biofilm control. Int J Nanomedicine 2015; 10:2155-71. [PMID: 25834431 PMCID: PMC4370915 DOI: 10.2147/ijn.s72923] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Infectious diseases cause a huge burden on healthcare systems worldwide. Pathogenic bacteria establish infection by developing antibiotic resistance and modulating the host’s immune system, whereas opportunistic pathogens like Pseudomonas aeruginosa adapt to adverse conditions owing to their ability to form biofilms. In the present study, silver nanoparticles were biofunctionalized with polymyxin B, an antibacterial peptide using a facile method. The biofunctionalized nanoparticles (polymyxin B-capped silver nanoparticles, PBSNPs) were assessed for antibacterial activity against multiple drug-resistant clinical strain Vibrio fluvialis and nosocomial pathogen P. aeruginosa. The results of antibacterial assay revealed that PBSNPs had an approximately 3-fold higher effect than the citrate-capped nanoparticles (CSNPs). Morphological damage to the cell membrane was followed by scanning electron microscopy, testifying PBSNPs to be more potent in controlling the bacterial growth as compared with CSNPs. The bactericidal effect of PBSNPs was further confirmed by Live/Dead staining assays. Apart from the antibacterial activity, the biofunctionalized nanoparticles were found to resist biofilm formation. Electroplating of PBSNPs onto stainless steel surgical blades retained the antibacterial activity against P. aeruginosa. Further, the affinity of polymyxin for endotoxin was exploited for its removal using PBSNPs. It was found that the prepared nanoparticles removed 97% of the endotoxin from the solution. Such multifarious uses of metal nanoparticles are an attractive means of enhancing the potency of antimicrobial agents to control infections.
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Affiliation(s)
| | - Tarun Kumar Sharma
- Department of Biotechnology, Indian Institute of Technology, Roorkee, Uttarakhand, India
| | - Piyush Kumar
- Department of Biotechnology, Indian Institute of Technology, Roorkee, Uttarakhand, India
| | - Priyanka Vasnani
- Centre of Nanotechnology, Indian Institute of Technology, Roorkee, Uttarakhand, India
| | | | - Neha Bisht
- Department of Biotechnology, Indian Institute of Technology, Roorkee, Uttarakhand, India
| | - Ranjana Pathania
- Department of Biotechnology, Indian Institute of Technology, Roorkee, Uttarakhand, India ; Centre of Nanotechnology, Indian Institute of Technology, Roorkee, Uttarakhand, India
| | - Naveen Kumar Navani
- Department of Biotechnology, Indian Institute of Technology, Roorkee, Uttarakhand, India ; Centre of Nanotechnology, Indian Institute of Technology, Roorkee, Uttarakhand, India
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21
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Ananth DA, Rameshkumar A, Jeyadevi R, Jagadeeswari S, Nagarajan N, Renganathan R, Sivasudha T. Antibacterial potential of rutin conjugated with thioglycolic acid capped cadmium telluride quantum dots (TGA-CdTe QDs). SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 138:684-692. [PMID: 25544184 DOI: 10.1016/j.saa.2014.11.082] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2014] [Revised: 11/10/2014] [Accepted: 11/23/2014] [Indexed: 06/04/2023]
Abstract
Quantum dots not only act as nanocarrier but also act as stable and resistant natural fluorescent bio markers used in various in vitro and in vivo photolabelling and biological applications. In this study, the antimicrobial potential of TGA-CdTe QDs and commercial phenolics (rutin and caffeine) were investigated against Escherichiacoli. UV absorbance and fluorescence quenching study of TGA-CdTe QDs with rutin and caffeine complex was measured by spectroscopic technique. QDs-rutin conjugate exhibited excellent quenching property due to the -OH groups present in the rutin structure. But the same time caffeine has not conjugated with QDs because of lacking of -OH group in its structure. Photolabelling of E. coli with QDs-rutin and QDs-caffeine complex was analyzed by fluorescent microscopic method. Microbe E. coli cell membrane damage was assessed by atomic force (AFM) and confocal microscopy. Based on the results obtained, it is suggested that QDs-rutin conjugate enhance the antimicrobial activity more than the treatment with QDs, rutin and caffeine alone.
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Affiliation(s)
- Devanesan Arul Ananth
- Department of Environmental Biotechnology, Bharathidasan University, Tiruchirappalli 620 024, Tamil Nadu, India
| | - Angappan Rameshkumar
- Department of Environmental Biotechnology, Bharathidasan University, Tiruchirappalli 620 024, Tamil Nadu, India; TUV - SUD, South Asia Laboratory, Bangalore 560 058, India
| | - Ramachandran Jeyadevi
- Department of Environmental Biotechnology, Bharathidasan University, Tiruchirappalli 620 024, Tamil Nadu, India
| | | | - Natarajan Nagarajan
- School of Chemistry, Bharathidasan University, Tiruchirappalli 620 024, Tamil Nadu, India
| | - Rajalingam Renganathan
- School of Chemistry, Bharathidasan University, Tiruchirappalli 620 024, Tamil Nadu, India
| | - Thilagar Sivasudha
- Department of Environmental Biotechnology, Bharathidasan University, Tiruchirappalli 620 024, Tamil Nadu, India.
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22
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Zhang Y, Shareena Dasari TP, Deng H, Yu H. Antimicrobial Activity of Gold Nanoparticles and Ionic Gold. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART C, ENVIRONMENTAL CARCINOGENESIS & ECOTOXICOLOGY REVIEWS 2015; 33:286-327. [PMID: 26072980 DOI: 10.1080/10590501.2015.1055161] [Citation(s) in RCA: 167] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Gold, in both nanoparticle (AuNPs) and ionic forms, has been studied for antibiotic activities. Some of the organic complexes of Au (I & III) ions are antibacterial. AuNPs are antifungal, but with conflicting results on their antibacterial activity. We summarized these publications and found that AuNPs are generally not bactericidal, or only weakly at high concentrations. However, the reason AuNPs appear to be bactericidal is possibly due to the bactericidal activity of co-existing chemicals not completely removed from AuNPs: gold ions, surface coating agents, and chemicals involved in the synthesis. AuNPs can also act as carriers or delivery vehicles of antibiotics, thus enhancing the bactericidal effect of the antibiotics.
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Affiliation(s)
- Ying Zhang
- a Department of Chemistry and Biochemistry, Jackson State University , Jackson , Mississippi , USA
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23
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Monrás JP, Collao B, Molina-Quiroz RC, Pradenas GA, Saona LA, Durán-Toro V, Ordenes-Aenishanslins N, Venegas FA, Loyola DE, Bravo D, Calderón PF, Calderón IL, Vásquez CC, Chasteen TG, Lopez DA, Pérez-Donoso JM. Microarray analysis of the Escherichia coli response to CdTe-GSH Quantum Dots: understanding the bacterial toxicity of semiconductor nanoparticles. BMC Genomics 2014; 15:1099. [PMID: 25496196 PMCID: PMC4300170 DOI: 10.1186/1471-2164-15-1099] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Accepted: 11/26/2014] [Indexed: 02/06/2023] Open
Abstract
Background Most semiconductor nanoparticles used in biomedical applications are made of heavy metals and involve synthetic methods that require organic solvents and high temperatures. This issue makes the development of water-soluble nanoparticles with lower toxicity a major topic of interest. In a previous work our group described a biomimetic method for the aqueous synthesis of CdTe-GSH Quantum Dots (QDs) using biomolecules present in cells as reducing and stabilizing agents. This protocol produces nanoparticles with good fluorescent properties and less toxicity than those synthesized by regular chemical methods. Nevertheless, biomimetic CdTe-GSH nanoparticles still display some toxicity, so it is important to know in detail the effects of these semiconductor nanoparticles on cells, their levels of toxicity and the strategies that cells develop to overcome it. Results In this work, the response of E. coli exposed to different sized-CdTe-GSH QDs synthesized by a biomimetic protocol was evaluated through transcriptomic, biochemical, microbiological and genetic approaches. It was determined that: i) red QDs (5 nm) display higher toxicity than green (3 nm), ii) QDs mainly induce expression of genes involved with Cd+2 stress (zntA and znuA) and tellurium does not contribute significantly to QDs-mediated toxicity since cells incorporate low levels of Te, iii) red QDs also induce genes related to oxidative stress response and membrane proteins, iv) Cd2+ release is higher in red QDs, and v) QDs render the cells more sensitive to polymyxin B. Conclusion Based on the results obtained in this work, a general model of CdTe-GSH QDs toxicity in E. coli is proposed. Results indicate that bacterial toxicity of QDs is mainly associated with cadmium release, oxidative stress and loss of membrane integrity. The higher toxicity of red QDs is most probably due to higher cadmium content and release from the nanoparticle as compared to green QDs. Moreover, QDs-treated cells become more sensitive to polymyxin B making these biomimetic QDs candidates for adjuvant therapies against bacterial infections. Electronic supplementary material The online version of this article (doi:10.1186/1471-2164-15-1099) contains supplementary material, which is available to authorized users.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - José M Pérez-Donoso
- Bionanotechnology and Microbiology Lab, Center for Bioinformatics and Integrative Biology (CBIB), Universidad Andres Bello, Santiago, Chile.
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24
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Gajewicz A, Schaeublin N, Rasulev B, Hussain S, Leszczynska D, Puzyn T, Leszczynski J. Towards understanding mechanisms governing cytotoxicity of metal oxides nanoparticles: hints from nano-QSAR studies. Nanotoxicology 2014; 9:313-25. [PMID: 24983896 DOI: 10.3109/17435390.2014.930195] [Citation(s) in RCA: 94] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The production of nanomaterials increases every year exponentially and therefore the probability these novel materials that they could cause adverse outcomes for human health and the environment also expands rapidly. We proposed two types of mechanisms of toxic action that are collectively applied in a nano-QSAR model, which provides governance over the toxicity of metal oxide nanoparticles to the human keratinocyte cell line (HaCaT). The combined experimental-theoretical studies allowed the development of an interpretative nano-QSAR model describing the toxicity of 18 nano-metal oxides to the HaCaT cell line, which is a common in vitro model for keratinocyte response during toxic dermal exposure. The comparison of the toxicity of metal oxide nanoparticles to bacteria Escherichia coli (prokaryotic system) and a human keratinocyte cell line (eukaryotic system), resulted in the hypothesis that different modes of toxic action occur between prokaryotic and eukaryotic systems.
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Affiliation(s)
- Agnieszka Gajewicz
- Laboratory of Environmental Chemometrics, Institute for Environmental and Human Health Protection, Faculty of Chemistry, University of Gdańsk , Gdańsk , Poland
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25
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Wan Y, Zheng L, Sun Y, Zhang D. Multifunctional semiconducting polymer dots for imaging, detection, and photo-killing of bacteria. J Mater Chem B 2014; 2:4818-4825. [DOI: 10.1039/c4tb00288a] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Multifunctional semiconducting polymer dots, which can detect bacteria with high sensitivity and selectively kill pathogens.
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Affiliation(s)
- Yi Wan
- Key Laboratory of Marine Environmental Corrosion and Bio-fouling
- Institute of Oceanology
- Chinese Academy of Sciences
- Qingdao 266071, China
| | - Laibao Zheng
- Key Laboratory of Marine Chemistry Theory and Technology
- Ministry of Education
- Ocean University of China Qingdao
- China
| | - Yan Sun
- Key Laboratory of Marine Environmental Corrosion and Bio-fouling
- Institute of Oceanology
- Chinese Academy of Sciences
- Qingdao 266071, China
| | - Dun Zhang
- Key Laboratory of Marine Environmental Corrosion and Bio-fouling
- Institute of Oceanology
- Chinese Academy of Sciences
- Qingdao 266071, China
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26
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Tang S, Cai Q, Chibli H, Allagadda V, Nadeau JL, Mayer GD. Cadmium sulfate and CdTe-quantum dots alter DNA repair in zebrafish (Danio rerio) liver cells. Toxicol Appl Pharmacol 2013; 272:443-52. [PMID: 23770381 DOI: 10.1016/j.taap.2013.06.004] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2013] [Revised: 05/29/2013] [Accepted: 06/03/2013] [Indexed: 10/26/2022]
Abstract
Increasing use of quantum dots (QDs) makes it necessary to evaluate their toxicological impacts on aquatic organisms, since their contamination of surface water is inevitable. This study compares the genotoxic effects of ionic Cd versus CdTe nanocrystals in zebrafish hepatocytes. After 24h of CdSO4 or CdTe QD exposure, zebrafish liver (ZFL) cells showed a decreased number of viable cells, an accumulation of Cd, an increased formation of reactive oxygen species (ROS), and an induction of DNA strand breaks. Measured levels of stress defense and DNA repair genes were elevated in both cases. However, removal of bulky DNA adducts by nucleotide excision repair (NER) was inhibited with CdSO4 but not with CdTe QDs. The adverse effects caused by acute exposure of CdTe QDs might be mediated through differing mechanisms than those resulting from ionic cadmium toxicity, and studying the effects of metallic components may be not enough to explain QD toxicities in aquatic organisms.
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Affiliation(s)
- Song Tang
- The Institute of Environmental and Human Health, Texas Tech University, Lubbock, TX 79416, USA
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27
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Tang S, Allagadda V, Chibli H, Nadeau JL, Mayer GD. Comparison of cytotoxicity and expression of metal regulatory genes in zebrafish (Danio rerio) liver cells exposed to cadmium sulfate, zinc sulfate and quantum dots. Metallomics 2013; 5:1411-22. [DOI: 10.1039/c3mt20234h] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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28
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Wani IA, Ahmad T, Manzoor N. Size and shape dependant antifungal activity of gold nanoparticles: a case study of Candida. Colloids Surf B Biointerfaces 2012; 101:162-70. [PMID: 22796787 DOI: 10.1016/j.colsurfb.2012.06.005] [Citation(s) in RCA: 111] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2012] [Accepted: 06/07/2012] [Indexed: 12/01/2022]
Abstract
A simple and economical sonochemical approach was employed for the synthesis of gold nanoparticles. The effect of the reducing agents has been studied on the particle size, morphology and properties at the same ultrasonic frequency under ambient conditions. Gold nanodiscs of average diameter of 25 nm were obtained using tinchloride (SnCl(2)) as a reducing agent, while sodium borohydride (NaBH(4)) produced polyhedral structures of the average size of 30 nm. The time evolution of the UV-visible absorption spectra of the gold nanostructures shows the origin of peaks due to higher order quadrupolar modes apart from the peaks of the in plane and out plane dipolar surface plasmon modes. Surface area studies reveal the much higher surface area of the gold nanodiscs (179.5 m(2)/g), than the gold nanoparticles (150.5m(2)/g) prepared by the sodium borohydride as the reducing agent. The gold nanoparticles exhibit excellent antifungal activity against the fungus, Candida. We investigated the effect of the gold nanoparticles on the H(+)-ATPase mediated H(+) pumping by various Candida species. Gold nanodiscs displayed the stronger fungicidal activity compared to the gold polyhedral nanoparticles. The two types of gold nanoparticles inhibit H(+)-ATPase activity at their respective MIC values.
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Affiliation(s)
- Irshad A Wani
- Nanochemistry Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi 110025, India
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29
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Sharma TK, Sapra M, Chopra A, Sharma R, Patil SD, Malik RK, Pathania R, Navani NK. Interaction of Bacteriocin-Capped Silver Nanoparticles with Food Pathogens and Their Antibacterial Effect. ACTA ACUST UNITED AC 2012. [DOI: 10.1080/19430892.2012.678757] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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30
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Gomes SA, Vieira CS, Almeida DB, Santos-Mallet JR, Menna-Barreto RFS, Cesar CL, Feder D. CdTe and CdSe quantum dots cytotoxicity: a comparative study on microorganisms. SENSORS 2011; 11:11664-78. [PMID: 22247686 PMCID: PMC3252003 DOI: 10.3390/s111211664] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2011] [Revised: 11/26/2011] [Accepted: 12/09/2011] [Indexed: 11/16/2022]
Abstract
Quantum dots (QDs) are colloidal semiconductor nanocrystals of a few nanometers in diameter, being their size and shape controlled during the synthesis. They are synthesized from atoms of group II–VI or III–V of the periodic table, such as cadmium telluride (CdTe) or cadmium selenium (CdSe) forming nanoparticles with fluorescent characteristics superior to current fluorophores. The excellent optical characteristics of quantum dots make them applied widely in the field of life sciences. Cellular uptake of QDs, location and translocation as well as any biological consequence, such as cytotoxicity, stimulated a lot of scientific research in this area. Several studies pointed to the cytotoxic effect against micoorganisms. In this mini-review, we overviewed the synthesis and optical properties of QDs, and its advantages and bioapplications in the studies about microorganisms such as protozoa, bacteria, fungi and virus.
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Affiliation(s)
- Suzete A.O. Gomes
- Laboratório de Biologia de Insetos, GBG, Universidade Federal Fluminense—UFF, Niterói, RJ, CEP: 24210-130, Brazil; E-Mail: (S.A.O.G.)
| | - Cecilia Stahl Vieira
- Laboratório de Transmissores de Leishmanioses, Setor de Entomologia Médica e Forense, IOC-FIOCRUZ, Rio de Janeiro, RJ, CEP: 21040-360, Brazil; E-Mails: (C.S.V.); (J.R.S.-M.)
| | - Diogo B. Almeida
- Laboratório de Aplicações Biomédicas de Lasers, Departamento de Eletrônica Quântica, Instituto de Física Gleb Wataghin, Universidade Estadual de Campinas, Campinas, SP, CEP: 13083-970, Brazil; E-Mails: (D.B.A.); (C.L.C.)
| | - Jacenir R. Santos-Mallet
- Laboratório de Transmissores de Leishmanioses, Setor de Entomologia Médica e Forense, IOC-FIOCRUZ, Rio de Janeiro, RJ, CEP: 21040-360, Brazil; E-Mails: (C.S.V.); (J.R.S.-M.)
| | - Rubem F. S. Menna-Barreto
- Laboratório de Biologia Celular, IOC-FIOCRUZ, Rio de Janeiro, RJ, CEP: 21040-360, Brazil; E-Mail: (R.F.S.M.-B.)
| | - Carlos L. Cesar
- Laboratório de Aplicações Biomédicas de Lasers, Departamento de Eletrônica Quântica, Instituto de Física Gleb Wataghin, Universidade Estadual de Campinas, Campinas, SP, CEP: 13083-970, Brazil; E-Mails: (D.B.A.); (C.L.C.)
| | - Denise Feder
- Laboratório de Biologia de Insetos, GBG, Universidade Federal Fluminense—UFF, Niterói, RJ, CEP: 24210-130, Brazil; E-Mail: (S.A.O.G.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +55-21-2629-2285
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