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Zúñiga-Bustos M, Comer J, Poblete H. Thermodynamics of the physisorption of capping agents on silver nanoparticles. Phys Chem Chem Phys 2023; 25:20320-20330. [PMID: 37219530 DOI: 10.1039/d2cp06002g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Nanoscale silver particles have growing applications in biomedical and other technologies due to their unique antibacterial, optical, and electrical properties. The preparation of metal nanoparticles requires the action of a capping agent, such as thiol-containing compounds, to provide colloidal stability, prevent agglomeration, stop uncontrolled growth, and attenuate oxidative damage. However, despite the extensive use of these thiol-based capping agents, the structure of the capping agent layers on the metal surface and the thermodynamics of the formation of these layers remains poorly understood. Here, we leverage molecular dynamics simulations and free energy calculation techniques, to study the behavior of citrate and four thiol-containing capping agents commonly used to protect silver nanoparticles from oxidation. We have studied the single-molecule adsorption of these capping agents to the metal-water interface, their coalescence into clusters, and the formation of complete monolayers covering the metal nanoparticle. At sufficiently high concentrations, we find that allylmercaptan, lipoic acid, and mercaptohexanol spontaneously self-assemble into ordered layers with the thiol group in contact with the metal surface. The high density and ordered structure is presumably responsible for their improved protective characteristics relative to the other compounds studied.
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Affiliation(s)
- Matías Zúñiga-Bustos
- Programa Institucional de Fomento a la Investigacion, Desarrollo e Innovacion (PIDi), Universidad Tecnologica Metropolitana, Santiago 8940577, Chile
| | - Jeffrey Comer
- Department of Anatomy and Physiology, Kansas State University, Manhattan, 66506-580, Kansas, USA.
| | - Horacio Poblete
- Center for Bioinformatics and Molecular Simulation, Facultad de Ingenieria, Universidad de Talca, 2 Norte 685, Talca, Chile.
- Millennium Nucleus of Ion Channel-Associated Diseases (MiNICAD), Talca, Chile
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2
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Biomedical applications of solid-binding peptides and proteins. Mater Today Bio 2023; 19:100580. [PMID: 36846310 PMCID: PMC9950531 DOI: 10.1016/j.mtbio.2023.100580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 02/06/2023] [Accepted: 02/10/2023] [Indexed: 02/17/2023] Open
Abstract
Over the past decades, solid-binding peptides (SBPs) have found multiple applications in materials science. In non-covalent surface modification strategies, solid-binding peptides are a simple and versatile tool for the immobilization of biomolecules on a vast variety of solid surfaces. Especially in physiological environments, SBPs can increase the biocompatibility of hybrid materials and offer tunable properties for the display of biomolecules with minimal impact on their functionality. All these features make SBPs attractive for the manufacturing of bioinspired materials in diagnostic and therapeutic applications. In particular, biomedical applications such as drug delivery, biosensing, and regenerative therapies have benefited from the introduction of SBPs. Here, we review recent literature on the use of solid-binding peptides and solid-binding proteins in biomedical applications. We focus on applications where modulating the interactions between solid materials and biomolecules is crucial. In this review, we describe solid-binding peptides and proteins, providing background on sequence design and binding mechanism. We then discuss their application on materials relevant for biomedicine (calcium phosphates, silicates, ice crystals, metals, plastics, and graphene). Although the limited characterization of SBPs still represents a challenge for their design and widespread application, our review shows that SBP-mediated bioconjugation can be easily introduced into complex designs and on nanomaterials with very different surface chemistries.
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3
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More PR, Pandit S, Filippis AD, Franci G, Mijakovic I, Galdiero M. Silver Nanoparticles: Bactericidal and Mechanistic Approach against Drug Resistant Pathogens. Microorganisms 2023; 11:microorganisms11020369. [PMID: 36838334 PMCID: PMC9961011 DOI: 10.3390/microorganisms11020369] [Citation(s) in RCA: 34] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 01/11/2023] [Accepted: 01/29/2023] [Indexed: 02/05/2023] Open
Abstract
This review highlights the different modes of synthesizing silver nanoparticles (AgNPs) from their elemental state to particle format and their mechanism of action against multidrug-resistant and biofilm-forming bacterial pathogens. Various studies have demonstrated that the AgNPs cause oxidative stress, protein dysfunction, membrane disruption, and DNA damage in bacteria, ultimately leading to bacterial death. AgNPs have also been found to alter the adhesion of bacterial cells to prevent biofilm formation. The benefits of using AgNPs in medicine are, to some extent, counter-weighted by their toxic effect on humans and the environment. In this review, we have compiled recent studies demonstrating the antibacterial activity of AgNPs, and we are discussing the known mechanisms of action of AgNPs against bacterial pathogens. Ongoing clinical trials involving AgNPs are briefly presented. A particular focus is placed on the mechanism of interaction of AgNPs with bacterial biofilms, which are a significant pathogenicity determinant. A brief overview of the use of AgNPs in other medical applications (e.g., diagnostics, promotion of wound healing) and the non-medical sectors is presented. Finally, current drawbacks and limitations of AgNPs use in medicine are discussed, and perspectives for the improved future use of functionalized AgNPs in medical applications are presented.
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Affiliation(s)
- Pragati Rajendra More
- Department of Experimental Medicine, Section of Microbiology and Clinical Microbiology, University of Campania “L. Vanvitelli”, Via De Crecchio, 7, 80138 Naples, Italy
- Systems and Synthetic Biology Division, Department of Biology and Biological Engineering, Chalmers University of Technology, 41296 Gothenburg, Sweden
| | - Santosh Pandit
- Systems and Synthetic Biology Division, Department of Biology and Biological Engineering, Chalmers University of Technology, 41296 Gothenburg, Sweden
| | - Anna De Filippis
- Department of Experimental Medicine, Section of Microbiology and Clinical Microbiology, University of Campania “L. Vanvitelli”, Via De Crecchio, 7, 80138 Naples, Italy
| | - Gianluigi Franci
- Department of Medicine, Surgery and Dentistry, Scuola Medica Salernitana, University of Salerno, 84081 Baronissi, Italy
| | - Ivan Mijakovic
- Systems and Synthetic Biology Division, Department of Biology and Biological Engineering, Chalmers University of Technology, 41296 Gothenburg, Sweden
- Novo Nordisk Foundation Center for Bio Sustainability, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
- Correspondence: (I.M.); (M.G.)
| | - Massimiliano Galdiero
- Department of Experimental Medicine, Section of Microbiology and Clinical Microbiology, University of Campania “L. Vanvitelli”, Via De Crecchio, 7, 80138 Naples, Italy
- Correspondence: (I.M.); (M.G.)
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4
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Immobilization Systems of Antimicrobial Peptide Ib−M1 in Polymeric Nanoparticles Based on Alginate and Chitosan. Polymers (Basel) 2022; 14:polym14153149. [PMID: 35956663 PMCID: PMC9370884 DOI: 10.3390/polym14153149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 07/28/2022] [Accepted: 07/29/2022] [Indexed: 12/04/2022] Open
Abstract
The development of new strategies to reduce the use of traditional antibiotics has been a topic of global interest due to the resistance generated by multiresistant microorganisms, including Escherichia coli, as etiological agents of various diseases. Antimicrobial peptides are presented as an alternative for the treatment of infectious diseases caused by this type of microorganism. The Ib−M1 peptide meets the requirements to be used as an antimicrobial compound. However, it is necessary to use strategies that generate protection and resist the conditions encountered in a biological system. Therefore, in this study, we synthesized alginate and chitosan nanoparticles (Alg−Chi NPs) using the ionic gelation technique, which allows for the crosslinking of polymeric chains arranged in nanostructures by intermolecular interactions that can be either covalent or non-covalent. Such interactions can be achieved through the use of crosslinking agents that facilitate this binding. This technique allows for immobilization of the Ib−M1 peptide to form an Ib−M1/Alg−Chi bioconjugate. SEM, DLS, and FT-IR were used to determine the structural features of the nanoparticles. We evaluated the biological activity against E. coli ATCC 25922 and Vero mammalian cells, as well as the stability at various temperatures, pH, and proteases, of Ib−M1 and Ib−M1/Alg-Chi. The results showed agglomerates of nanoparticles with average sizes of 150 nm; an MIC of 12.5 µM, which was maintained in the bioconjugate; and cytotoxicity values close to 40%. Stability was maintained against pH and temperature; in proteases, it was only evidenced against pepsin in Ib−M1/Alg-Chi. The results are promising with respect to the use of Ib−M1 and Ib−M1/Alg−Chi as possible antimicrobial agents.
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Xu J, Gao T, Sheng L, Wang Y, Lou C, Wang H, Liu Y, Cao A. Conformationally engineering flexible peptides on silver nanoparticles. iScience 2022; 25:104324. [PMID: 35601913 PMCID: PMC9117549 DOI: 10.1016/j.isci.2022.104324] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 03/30/2022] [Accepted: 04/25/2022] [Indexed: 11/24/2022] Open
Abstract
Molecular conformational engineering is to engineer flexible non-functional molecules into unique conformations to create novel functions just like natural proteins fold. Obviously, it is a grand challenge with tremendous opportunities. Based on the facts that natural proteins are only marginally stable with a net stabilizing energy roughly equivalent to the energy of two hydrogen bonds, and the energy barriers for the adatom diffusion of some metals are within a similar range, we propose that metal nanoparticles can serve as a general replacement of protein scaffolds to conformationally engineer protein fragments on the surface of nanoparticles. To prove this hypothesis, herein, we successfully restore the antigen-recognizing function of the flexible peptide fragment of a natural anti-lysozyme antibody on the surface of silver nanoparticles, creating a silver nanoparticle-base artificial antibody (Silverbody). A plausible mechanism is proposed, and some general principles for conformational engineering are summarized to guide future studies in this area. A silver NP-based artificial antibody is created by conformational engineering Function emerges on NPs from non-functional peptide by mimicking the protein folding A general mechanism is proposed for the conformational engineering on metal NPs
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Affiliation(s)
- Jia Xu
- Institute of Nanochemistry and Nanobiology, Shanghai University, Shanghai 200444, China
| | - Tiange Gao
- Institute of Nanochemistry and Nanobiology, Shanghai University, Shanghai 200444, China
| | - Lingjie Sheng
- Institute of Nanochemistry and Nanobiology, Shanghai University, Shanghai 200444, China
| | - Yan Wang
- Institute of Nanochemistry and Nanobiology, Shanghai University, Shanghai 200444, China
| | - Chenxi Lou
- Institute of Nanochemistry and Nanobiology, Shanghai University, Shanghai 200444, China
| | - Haifang Wang
- Institute of Nanochemistry and Nanobiology, Shanghai University, Shanghai 200444, China
- Corresponding author
| | - Yuanfang Liu
- Institute of Nanochemistry and Nanobiology, Shanghai University, Shanghai 200444, China
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Aoneng Cao
- Institute of Nanochemistry and Nanobiology, Shanghai University, Shanghai 200444, China
- Corresponding author
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Muñoz M, Eren Cimenci C, Goel K, Comtois-Bona M, Hossain M, McTiernan C, Zuñiga-Bustos M, Ross A, Truong B, Davis DR, Liang W, Rotstein B, Ruel M, Poblete H, Suuronen EJ, Alarcon EI. Nanoengineered Sprayable Therapy for Treating Myocardial Infarction. ACS NANO 2022; 16:3522-3537. [PMID: 35157804 DOI: 10.1021/acsnano.1c08890] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
We report the development, as well as the in vitro and in vivo testing, of a sprayable nanotherapeutic that uses surface engineered custom-designed multiarmed peptide grafted nanogold for on-the-spot coating of an infarcted myocardial surface. When applied to mouse hearts, 1 week after infarction, the spray-on treatment resulted in an increase in cardiac function (2.4-fold), muscle contractility, and myocardial electrical conductivity. The applied nanogold remained at the treatment site 28 days postapplication with no off-target organ infiltration. Further, the infarct size in the mice that received treatment was found to be <10% of the total left ventricle area, while the number of blood vessels, prohealing macrophages, and cardiomyocytes increased to levels comparable to that of a healthy animal. Our cumulative data suggest that the therapeutic action of our spray-on nanotherapeutic is highly effective, and in practice, its application is simpler than other regenerative approaches for treating an infarcted heart.
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Affiliation(s)
- Marcelo Muñoz
- BEaTS Research, Division of Cardiac Surgery, University of Ottawa Heart Institute, Ottawa, Ontario K1Y 4W7, Canada
| | - Cagla Eren Cimenci
- BEaTS Research, Division of Cardiac Surgery, University of Ottawa Heart Institute, Ottawa, Ontario K1Y 4W7, Canada
- Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1H 8M5, Canada
| | - Keshav Goel
- BEaTS Research, Division of Cardiac Surgery, University of Ottawa Heart Institute, Ottawa, Ontario K1Y 4W7, Canada
| | - Maxime Comtois-Bona
- BEaTS Research, Division of Cardiac Surgery, University of Ottawa Heart Institute, Ottawa, Ontario K1Y 4W7, Canada
| | - Mahir Hossain
- BEaTS Research, Division of Cardiac Surgery, University of Ottawa Heart Institute, Ottawa, Ontario K1Y 4W7, Canada
| | - Christopher McTiernan
- BEaTS Research, Division of Cardiac Surgery, University of Ottawa Heart Institute, Ottawa, Ontario K1Y 4W7, Canada
| | - Matias Zuñiga-Bustos
- Departamento de Bioinformática, Centro de Bioinformática, Simulación y Modelado (CBSM), Facultad de Ingeniería, Universidad de Talca, Campus Talca, 2 Norte 685, 3460000, Talca, Chile
| | - Alex Ross
- BEaTS Research, Division of Cardiac Surgery, University of Ottawa Heart Institute, Ottawa, Ontario K1Y 4W7, Canada
| | - Brenda Truong
- BEaTS Research, Division of Cardiac Surgery, University of Ottawa Heart Institute, Ottawa, Ontario K1Y 4W7, Canada
| | - Darryl R Davis
- University of Ottawa Heart Institute, Division of Cardiology, Department of Medicine, University of Ottawa, Ottawa, Ontario K1Y 4W7, Canada
- Cardiac Electrophysiology Lab, University of Ottawa, Ottawa, Ontario K1Y 4W7, Canada
| | - Wenbin Liang
- University of Ottawa Heart Institute, Division of Cardiology, Department of Medicine, University of Ottawa, Ottawa, Ontario K1Y 4W7, Canada
- Cardiac Electrophysiology Lab, University of Ottawa, Ottawa, Ontario K1Y 4W7, Canada
| | - Benjamin Rotstein
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1H 8M5, Canada
- Molecular Imaging Probes and Radiochemistry Laboratory, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, Ontario K1Y 4W7, Canada
| | - Marc Ruel
- BEaTS Research, Division of Cardiac Surgery, University of Ottawa Heart Institute, Ottawa, Ontario K1Y 4W7, Canada
- Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1H 8M5, Canada
| | - Horacio Poblete
- Departamento de Bioinformática, Centro de Bioinformática, Simulación y Modelado (CBSM), Facultad de Ingeniería, Universidad de Talca, Campus Talca, 2 Norte 685, 3460000, Talca, Chile
- Millennium Nucleus of Ion Channels-Associated Diseases (MiNICAD), Universidad de Talca, 2 Norte 685, 3460000 Talca, Chile
| | - Erik J Suuronen
- BEaTS Research, Division of Cardiac Surgery, University of Ottawa Heart Institute, Ottawa, Ontario K1Y 4W7, Canada
- Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1H 8M5, Canada
| | - Emilio I Alarcon
- BEaTS Research, Division of Cardiac Surgery, University of Ottawa Heart Institute, Ottawa, Ontario K1Y 4W7, Canada
- Molecular Imaging Probes and Radiochemistry Laboratory, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, Ontario K1Y 4W7, Canada
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7
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Abbas M, Atiq A, Xing R, Yan X. Silver-incorporating peptide and protein supramolecular nanomaterials for biomedical applications. J Mater Chem B 2021; 9:4444-4458. [PMID: 33978051 DOI: 10.1039/d1tb00025j] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The natural biomolecules of peptides and proteins are able to form elegant metal incorporating supramolecular nanomaterials through multiple weak non-covalent interactions. The use of toxic chemical reagents to fabricate silver nanoparticles poses a danger to apply them in various biomedical applications. Peptide and protein biomolecules have the potential to overcome this barrier by the supramolecular chemistry approach. In this review, we focus on the self-assembly of peptides and proteins to synthesize silver incorporating supramolecular nanoarchitectures, which in turn enhance the biological properties of these silver nanomaterials being used in nanomedicine. This review aims to illustrate the recent developments in amphiphilic peptides, oligopeptides, collagen, bovine serum albumin (BSA), and human serum albumin (HSA) as capping, stabilizing, and reducing agents to form silver incorporating supramolecular nanostructures. Finally, we provide some biomedical applications of silver-incorporating supramolecular nanomaterials along with future perspectives.
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Affiliation(s)
- Manzar Abbas
- Institute for Molecules and Materials, Radboud University, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands.
| | - Atia Atiq
- Department of Physics, Division of Science and Technology, University of Education, Lahore, Pakistan
| | - Ruirui Xing
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China. and Center for Mesoscience, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Xuehai Yan
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China. and Center for Mesoscience, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
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8
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Pushpavanam K, Ma J, Cai Y, Naser NY, Baneyx F. Solid-Binding Proteins: Bridging Synthesis, Assembly, and Function in Hybrid and Hierarchical Materials Fabrication. Annu Rev Chem Biomol Eng 2021; 12:333-357. [PMID: 33852353 DOI: 10.1146/annurev-chembioeng-102020-015923] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
There is considerable interest in the development of hybrid organic-inorganic materials because of the potential for harvesting the unique capabilities that each system has to offer. Proteins are an especially attractive organic component owing to the high amount of chemical information encoded in their amino acid sequence, their amenability to molecular and computational (re)design, and the many structures and functions they specify. Genetic installation of solid-binding peptides (SBPs) within protein frameworks affords control over the position and orientation of adhesive and morphogenetic segments, and a path toward predictive synthesis and assembly of functional materials and devices, all while harnessing the built-in properties of the host scaffold. Here, we review the current understanding of the mechanisms through which SBPs bind to technologically relevant interfaces, with an emphasis on the variables that influence the process, and highlight the last decade of progress in the use of solid-binding proteins for hybrid and hierarchical materials synthesis.
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Affiliation(s)
- Karthik Pushpavanam
- Department of Chemical Engineering, University of Washington, Seattle, Washington 98115, USA;
| | - Jinrong Ma
- Molecular Engineering and Sciences Institute, University of Washington, Seattle, Washington 98115, USA
| | - Yifeng Cai
- Department of Chemical Engineering, University of Washington, Seattle, Washington 98115, USA;
| | - Nada Y Naser
- Department of Chemical Engineering, University of Washington, Seattle, Washington 98115, USA;
| | - François Baneyx
- Department of Chemical Engineering, University of Washington, Seattle, Washington 98115, USA; .,Molecular Engineering and Sciences Institute, University of Washington, Seattle, Washington 98115, USA
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9
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Sahraei A, Mohammadi F, Boukherroub R, Szunerits S. Formation of a Highly Stable and Nontoxic Protein Corona upon Interaction of Human α-1-Acid Glycoprotein (AGP) with Citrate-Stabilized Silver Nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:10321-10330. [PMID: 32842747 DOI: 10.1021/acs.langmuir.0c01018] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Given the importance of protein corona in determining cellular responses to nanoparticles, numerous studies have been devoted to finding stable, biocompatible, and nontoxic protein corona. In this work, the interaction between human α-1-acid glycoprotein (AGP) and citrate-stabilized silver (Ag-CIT) nanoparticles of about 10 nm was methodically studied using molecular docking simulation approach and various experimental techniques. It could be shown that a stable Ag-CIT/AGP bioconjugate was formed with a high binding constant of 109 M-1, several orders of magnitude larger than that of other highly abundant serum proteins. Formation of AGP corona was accompanied by conserving the native conformation of the protein and further associated with a considerable decrease in the cytotoxicity of the silver nanoparticles.
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Affiliation(s)
- Amin Sahraei
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), 444 Prof. Sobouti Blvd., Gava Zang, Zanjan 45137-66731, Iran
| | - Fakhrossadat Mohammadi
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), 444 Prof. Sobouti Blvd., Gava Zang, Zanjan 45137-66731, Iran
| | - Rabah Boukherroub
- University Lille, CNRS, Centrale Lille, University Polytechnique Hauts-de-France, UMR 8520-IEMN, F-59000 Lille, France
| | - Sabine Szunerits
- University Lille, CNRS, Centrale Lille, University Polytechnique Hauts-de-France, UMR 8520-IEMN, F-59000 Lille, France
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10
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The Impact of Ag Nanoparticles and CdTe Quantum Dots on Expression and Function of Receptors Involved in Amyloid-β Uptake by BV-2 Microglial Cells. MATERIALS 2020; 13:ma13143227. [PMID: 32698417 PMCID: PMC7412234 DOI: 10.3390/ma13143227] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 07/09/2020] [Accepted: 07/16/2020] [Indexed: 02/08/2023]
Abstract
Microglial cells clear the brain of pathogens and harmful debris, including amyloid-β (Aβ) deposits that are formed during Alzheimer’s disease (AD). We studied the expression of Msr1, Ager and Cd36 receptors involved in Aβ uptake and expression of Cd33 protein, which is considered a risk factor in AD. The effect of silver nanoparticles (AgNP) and cadmium telluride quantum dots (CdTeQD) on the expression of the above receptors and Aβ uptake by microglial cells was investigated. Absorption of Aβ and NP was confirmed by confocal microscopy. AgNP, but not CdTeQD, caused a decrease in Aβ accumulation. By using a specific inhibitor—polyinosinic acid—we demonstrated that Aβ and AgNP compete for scavenger receptors. Real-time PCR showed up-regulation of Cd33 and Cd36 gene expression after treatment with CdTeQD for 24 h. Analysis of the abundance of the receptors on the cell surface revealed that AgNP treatment significantly reduced the presence of Msr1, Cd33, Ager and Cd36 receptors (6 and 24 h), whereas CdTeQD increased the levels of Msr1 and Cd36 (24 h). To summarize, we showed that AgNP uptake competes with Aβ uptake by microglial cells and consequently can impair the removal of the aggregates. In turn, CdTeQD treatment led to the accumulation of proinflammatory Cd36 protein on the cell surface.
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11
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Drayton M, Kizhakkedathu JN, Straus SK. Towards Robust Delivery of Antimicrobial Peptides to Combat Bacterial Resistance. Molecules 2020; 25:molecules25133048. [PMID: 32635310 PMCID: PMC7412191 DOI: 10.3390/molecules25133048] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 06/24/2020] [Accepted: 06/30/2020] [Indexed: 12/13/2022] Open
Abstract
Antimicrobial peptides (AMPs), otherwise known as host defence peptides (HDPs), are naturally occurring biomolecules expressed by a large array of species across the phylogenetic kingdoms. They have great potential to combat microbial infections by directly killing or inhibiting bacterial activity and/or by modulating the immune response of the host. Due to their multimodal properties, broad spectrum activity, and minimal resistance generation, these peptides have emerged as a promising response to the rapidly concerning problem of multidrug resistance (MDR). However, their therapeutic efficacy is limited by a number of factors, including rapid degradation, systemic toxicity, and low bioavailability. As such, many strategies have been developed to mitigate these limitations, such as peptide modification and delivery vehicle conjugation/encapsulation. Oftentimes, however, particularly in the case of the latter, this can hinder the activity of the parent AMP. Here, we review current delivery strategies used for AMP formulation, focusing on methodologies utilized for targeted infection site release of AMPs. This specificity unites the improved biocompatibility of the delivery vehicle with the unhindered activity of the free AMP, providing a promising means to effectively translate AMP therapy into clinical practice.
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Affiliation(s)
- Matthew Drayton
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada;
| | - Jayachandran N. Kizhakkedathu
- Department of Pathology and Laboratory Medicine, and Centre for Blood Research, University of British Columbia, 2350 Health Sciences Mall, Life Sciences Centre, Vancouver, BC V6T 1Z3, Canada;
| | - Suzana K. Straus
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada;
- Correspondence: ; Tel.: +1-604-822-2537
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12
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Khatoon Z, Guzmán-Soto I, McTiernan CD, Lazurko C, Simpson F, Zhang L, Cortes D, Mah TF, Griffith M, Alarcon EI. Nanoengineering the surface of corneal implants: towards functional anti-microbial and biofilm materials. RSC Adv 2020; 10:23675-23681. [PMID: 35517329 PMCID: PMC9054791 DOI: 10.1039/d0ra03659e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 06/05/2020] [Indexed: 12/26/2022] Open
Abstract
We report the development and use of a light-mediated in situ grafting technology for the surface modification of biosynthetic corneal implants with peptide-capped nanoparticles (15–65 nm). The resulting materials have antimicrobial properties in bacterial suspension and also reduced the extent of biofilm formation. Our in situ grafting technology offers a rapid route for the introduction of antimicrobial properties to premoulded corneal implants, and potentially other soft implant targets. A rapid and precise route to graft a nano-bactericidal barrier is reported.![]()
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Affiliation(s)
- Zohra Khatoon
- Division of Cardiac Surgery, University of Ottawa Heart Institute 40 Ruskin Street Ottawa Canada
| | - Irene Guzmán-Soto
- Division of Cardiac Surgery, University of Ottawa Heart Institute 40 Ruskin Street Ottawa Canada
| | - Christopher D McTiernan
- Division of Cardiac Surgery, University of Ottawa Heart Institute 40 Ruskin Street Ottawa Canada
| | - Caitlin Lazurko
- Division of Cardiac Surgery, University of Ottawa Heart Institute 40 Ruskin Street Ottawa Canada
| | - Fiona Simpson
- Centre de Recherche Hôpital Maisonneuve-Rosemont Montréal QC Canada
| | - Li Zhang
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa Ottawa Canada
| | - David Cortes
- Division of Cardiac Surgery, University of Ottawa Heart Institute 40 Ruskin Street Ottawa Canada
| | - Thien-Fah Mah
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa Ottawa Canada
| | - May Griffith
- Centre de Recherche Hôpital Maisonneuve-Rosemont Montréal QC Canada .,Département d'ophtalmologie, Université de Montréal Montréal QC Canada
| | - Emilio I Alarcon
- Division of Cardiac Surgery, University of Ottawa Heart Institute 40 Ruskin Street Ottawa Canada .,Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa Ottawa Canada
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13
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Lazurko C, Khatoon Z, Goel K, Sedlakova V, Eren Cimenci C, Ahumada M, Zhang L, Mah TF, Franco W, Suuronen EJ, Alarcon EI. Multifunctional Nano and Collagen-Based Therapeutic Materials for Skin Repair. ACS Biomater Sci Eng 2020; 6:1124-1134. [PMID: 33464871 DOI: 10.1021/acsbiomaterials.9b01281] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A novel strategy is needed for treating nonhealing wounds, which is able to simultaneously eradicate pathogenic bacteria and promote tissue regeneration. This would improve patient outcome and reduce the number of lower limb amputations. In this work, we present a multifunctional therapeutic approach able to control bacterial infections, provide a protective barrier to a full-thickness wound, and improve wound healing in a clinically relevant animal model. Our approach uses a nanoengineered antimicrobial nanoparticle for creating a sprayable layer onto the wound bed that prevents bacterial proliferation and also eradicates preformed biofilms. As a protective barrier for the wound, we developed a thermoresponsive collagen-based matrix that has prohealing properties and is able to fill wounds independent of their geometries. Our results indicate that using a combination of the matrix with full-thickness microscopic skin tissue columns synergistically contributed to faster and superior skin regeneration in a nonhealing wound model in diabetic mice.
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Affiliation(s)
- Caitlin Lazurko
- Division of Cardiac Surgery, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa K1Y4W7, Canada.,Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa K1H8M5, Canada
| | - Zohra Khatoon
- Division of Cardiac Surgery, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa K1Y4W7, Canada
| | - Keshav Goel
- Division of Cardiac Surgery, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa K1Y4W7, Canada.,Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa K1H8M5, Canada
| | - Veronika Sedlakova
- Division of Cardiac Surgery, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa K1Y4W7, Canada
| | - Cagla Eren Cimenci
- Division of Cardiac Surgery, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa K1Y4W7, Canada
| | - Manuel Ahumada
- Division of Cardiac Surgery, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa K1Y4W7, Canada.,Centro de Nanotecnología Aplicada, Facultad de Ciencias, Universidad Mayor, Santiago 8580745, Chile.,Wellman Centre for Photomedicine, Department of Dermatology, Massachusetts General Hospital, Harvard Medical School, Boston 02114, Massachusetts, United States
| | - Li Zhang
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa K1H8M5, Canada
| | - Thien-Fah Mah
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa K1H8M5, Canada
| | - Walfre Franco
- Wellman Centre for Photomedicine, Department of Dermatology, Massachusetts General Hospital, Harvard Medical School, Boston 02114, Massachusetts, United States
| | - Erik J Suuronen
- Division of Cardiac Surgery, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa K1Y4W7, Canada.,Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa K1H8M5, Canada
| | - Emilio I Alarcon
- Division of Cardiac Surgery, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa K1Y4W7, Canada.,Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa K1H8M5, Canada
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14
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Goel K, Zuñiga-Bustos M, Lazurko C, Jacques E, Galaz-Araya C, Valenzuela-Henriquez F, Pacioni NL, Couture JF, Poblete H, Alarcon EI. Nanoparticle Concentration vs Surface Area in the Interaction of Thiol-Containing Molecules: Toward a Rational Nanoarchitectural Design of Hybrid Materials. ACS APPLIED MATERIALS & INTERFACES 2019; 11:17697-17705. [PMID: 31013043 DOI: 10.1021/acsami.9b03942] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The effect of accounting for the total surface in the association of thiol-containing molecules to nanosilver was assessed using isothermal titration calorimetry, along with a new open access algorithm that calculates the total surface area for samples of different polydispersity. Further, we used advanced molecular dynamic calculations to explore the underlying mechanisms for the interaction of the studied molecules in the presence of a nanosilver surface in the form of flat surfaces or as three-dimensional pseudospherical nanostructures. Our data indicate that not only is the total surface area available for binding but also the supramolecular arrangements of the molecules in the near proximity of the nanosilver surface strongly affects the affinity of thiol-containing molecules to nanosilver surfaces.
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Affiliation(s)
- Keshav Goel
- Division of Cardiac Surgery , University of Ottawa Heart Institute , 40 Ruskin Street , Ottawa , Ontario , Canada K1Y 4W7
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine , University of Ottawa , 451 Smyth Road , Ottawa , Ontario , Canada K1H 8M5
| | - Matias Zuñiga-Bustos
- Center for Bioinformatics and Molecular Simulations, Facultad de Ingeniería , Universidad de Talca , Campus Lircay s/n , Talca 3460000 , Chile
| | - Caitlin Lazurko
- Division of Cardiac Surgery , University of Ottawa Heart Institute , 40 Ruskin Street , Ottawa , Ontario , Canada K1Y 4W7
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine , University of Ottawa , 451 Smyth Road , Ottawa , Ontario , Canada K1H 8M5
| | - Erik Jacques
- Division of Cardiac Surgery , University of Ottawa Heart Institute , 40 Ruskin Street , Ottawa , Ontario , Canada K1Y 4W7
| | - Constanza Galaz-Araya
- Center for Bioinformatics and Molecular Simulations, Facultad de Ingeniería , Universidad de Talca , Campus Lircay s/n , Talca 3460000 , Chile
| | - Francisco Valenzuela-Henriquez
- Instituto de Matemática , Pontificia Universidad Católica de Valparaíso , Blanco Viel 596, Cerro Barón , Valparaíso 2350026 , Chile
| | - Natalia L Pacioni
- Facultad de Ciencias Químicas, Departamento de Química Orgánica , Universidad Nacional de Córdoba , Haya de la Torre y Medina Allende s/n, Ciudad Universitaria , Córdoba X5000HUA , Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), INFIQC , Buenos Aires 1418 , Córdoba X5000IND , Argentina
| | - Jean-François Couture
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine , University of Ottawa , 451 Smyth Road , Ottawa , Ontario , Canada K1H 8M5
| | - Horacio Poblete
- Center for Bioinformatics and Molecular Simulations, Facultad de Ingeniería , Universidad de Talca , Campus Lircay s/n , Talca 3460000 , Chile
- Núcleo Científico Multidisciplinario, Dirección de Investigación , Universidad de Talca , Talca 3460000 , Chile
- Millennium Nucleus of Ion Channels-Associated Diseases (MiNICAD) , Talca 3460000 , Chile
| | - Emilio I Alarcon
- Division of Cardiac Surgery , University of Ottawa Heart Institute , 40 Ruskin Street , Ottawa , Ontario , Canada K1Y 4W7
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine , University of Ottawa , 451 Smyth Road , Ottawa , Ontario , Canada K1H 8M5
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15
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A Peptide-Nanoparticle System with Improved Efficacy against Multidrug Resistant Bacteria. Sci Rep 2019; 9:4485. [PMID: 30872680 PMCID: PMC6418133 DOI: 10.1038/s41598-019-41005-7] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Accepted: 02/27/2019] [Indexed: 11/08/2022] Open
Abstract
The recent rise of multidrug resistant microbial strains requires development of new and novel therapeutic alternatives. In this study, we present a novel antibacterial system that comprises of modified naturally abundant antimicrobial peptides in conjugation with silver nanoparticles. Further, we propose a simple route to incorporate a cysteine residue either at the N- or C-terminal of the parent peptide. Tagging a cysteine residue at the terminals not only enhances the binding propensity of the resultant peptide with the silver nanoparticle, but also increases its antimicrobial property against several pathogenic bacterial strains including K. pneumoniae. The minimum inhibitory concentration (MIC) values of the cysteine tagged nanoconjugates were obtained in the range of 5-15 μM compared to 50 μM for peptides devoid of the cysteines. The origin and mechanism of such improved activity of the conjugates were investigated using NMR spectroscopy and molecular dynamics (MD) simulations. The application of 13C-isotope labelled media to track the metabolic lifecycle of E. coli cells provided further insights into the system. MD simulations showed that pore formation in membrane bilayer is mediated through a hydrophobic collapse mechanism. The design strategy described herein opens up new-avenues for using biocompatible nanomedicines as a potential alternative to conventional antibiotics.
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16
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Jacques E, Ahumada M, Rector B, Yousefalizadeh G, Galaz-Araya C, Recabarren R, Stamplecoskie K, Poblete H, Alarcon EI. Effect of nanosilver surfaces on peptide reactivity towards reactive oxygen species. NANOSCALE 2018; 10:15911-15917. [PMID: 30106074 DOI: 10.1039/c8nr04018d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The interaction of a terminal tryptophan residue within collagen mimetic peptides when tethered to nanometric silver surfaces was studied using a combination of steady state spectroscopy, ultrafast spectroscopy, and molecular dynamics experiments. Our findings indicate that the effective interaction between the tryptophan and the metal surface occurs in short-time scales (ps) and it is responsible for improving the colloidal stability of the nanoparticles exposed to free radicals. The extent and efficiency of the interaction depends on factors beyond the peptide length that include conformation and distance from the terminal tryptophan to the metal surface.
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Affiliation(s)
- Erik Jacques
- Bio-Nanomaterials Chemistry and Engineering Laboratory, Division of Cardiac Surgery, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, Ontario K1Y 4 W7, Canada.
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17
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Afshinnia K, Marrone B, Baalousha M. Potential impact of natural organic ligands on the colloidal stability of silver nanoparticles. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 625:1518-1526. [PMID: 29996448 DOI: 10.1016/j.scitotenv.2017.12.299] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Revised: 12/24/2017] [Accepted: 12/25/2017] [Indexed: 06/08/2023]
Abstract
Interaction of natural organic matter (NOM) with engineered nanoparticles (NPs) determine NP fate, transport, and environmental persistence. However, the effect of NOM chemical composition, structure, and concentration on aggregation kinetics and dissolution behavior of silver nanoparticles (AgNPs) are still poorly understood because of heterogeneity and variability in NOM and AgNP properties. Here, aggregation behavior of citrate-coated silver nanoparticles (cit-AgNPs with a z-average diameter of 18nm) was investigated in the presence of l-cysteine (l-cys) and N-acetyl l-cysteine (NAL-cys) using UV-vis spectroscopy. We also investigated the effect of Suwannee River fulvic acid (SRFA) and a NOM isolated from the Yukon River (YRNOM) on the stability of cit-AgNPs. The dissolution of cit-AgNPs decreased with increased L-cys and NAL-cys concentration from 0 to 10μM. The critical coagulation concentration (CCC) of cit-AgNPs decreased in the presence of l-cys and increased in the presence of NAL-cys. Similarly, l-cys destabilizes cit-AgNPs in the presence of SRFA. The differences in the stability of cit-AgNPs in the presence of l-cys and NAL-cys can be attributed to the differences in the functional groups in these two cysteine molecules. l-cys has both negatively charged carboxylic group and a positively charged amine group, resulting in bridging between different particles. NAL-cys is a derivative of cysteine wherein an acetyl group is attached to the nitrogen atom thus shielding the positive charge on the amine group and therefore eliminating the bridging interaction mechanism. SRFA and YRNOM enhanced the stability of cit-AgNPs and increased the CCC value to higher counter ion concentrations. The concentration of SRFA (1-5mgL-1) did not affect the CCC, whereas the increased concentration of YRNOM increased the CCC of cit-AgNPs to high Na+ concentrations likely due to increased sorption of higher molecular weight compounds on the surface of cit-AgNPs. The outcome of this study suggests the importance of understanding the molecular properties of NOM (e.g. functional groups and molecular weight) in determining cit-AgNP environmental behaviors.
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Affiliation(s)
- Kamelia Afshinnia
- Center for Environmental Nanoscience and Risk, Department of Environmental Health Sciences, Arnold School of Public Health, University South Carolina, Columbia, SC 29208, United States
| | - Brandon Marrone
- Center for Environmental Nanoscience and Risk, Department of Environmental Health Sciences, Arnold School of Public Health, University South Carolina, Columbia, SC 29208, United States
| | - Mohammed Baalousha
- Center for Environmental Nanoscience and Risk, Department of Environmental Health Sciences, Arnold School of Public Health, University South Carolina, Columbia, SC 29208, United States.
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18
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Spicer CD, Jumeaux C, Gupta B, Stevens MM. Peptide and protein nanoparticle conjugates: versatile platforms for biomedical applications. Chem Soc Rev 2018; 47:3574-3620. [PMID: 29479622 PMCID: PMC6386136 DOI: 10.1039/c7cs00877e] [Citation(s) in RCA: 270] [Impact Index Per Article: 45.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Peptide- and protein-nanoparticle conjugates have emerged as powerful tools for biomedical applications, enabling the treatment, diagnosis, and prevention of disease. In this review, we focus on the key roles played by peptides and proteins in improving, controlling, and defining the performance of nanotechnologies. Within this framework, we provide a comprehensive overview of the key sequences and structures utilised to provide biological and physical stability to nano-constructs, direct particles to their target and influence their cellular and tissue distribution, induce and control biological responses, and form polypeptide self-assembled nanoparticles. In doing so, we highlight the great advances made by the field, as well as the challenges still faced in achieving the clinical translation of peptide- and protein-functionalised nano-drug delivery vehicles, imaging species, and active therapeutics.
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Affiliation(s)
- Christopher D Spicer
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Scheeles Väg 2, Stockholm, Sweden.
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19
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Ahumada M, Bohne C, Oake J, Alarcon EI. Protein capped nanosilver free radical oxidation: role of biomolecule capping on nanoparticle colloidal stability and protein oxidation. Chem Commun (Camb) 2018; 54:4724-4727. [PMID: 29683156 DOI: 10.1039/c7cc08629f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
We studied the effect of human serum albumin protein capped spherical nanosilver on the nanoparticle stability upon peroxyl radical oxidation. The nanoparticle-protein composite is less prone to oxidation compared to the individual components. However, higher concentrations of hydrogen peroxide were formed in the nanoparticle-protein system.
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Affiliation(s)
- Manuel Ahumada
- Division of Cardiac Surgery Research, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, Canada.
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20
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Chakraborty I, Feliu N, Roy S, Dawson K, Parak WJ. Protein-Mediated Shape Control of Silver Nanoparticles. Bioconjug Chem 2018; 29:1261-1265. [DOI: 10.1021/acs.bioconjchem.8b00034] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Indranath Chakraborty
- Fachbereich Physik, Philipps Universität Marburg, 35037 Marburg, Germany
- Fachbereich Physik und Chemie, and Center for Hybrid Nanostructure (CHyN), Universität Hamburg, 22761 Hamburg, Germany
| | - Neus Feliu
- Fachbereich Physik und Chemie, and Center for Hybrid Nanostructure (CHyN), Universität Hamburg, 22761 Hamburg, Germany
- Department of Laboratory Medicine (LABMED), Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Sathi Roy
- Fachbereich Physik, Philipps Universität Marburg, 35037 Marburg, Germany
- Fachbereich Physik und Chemie, and Center for Hybrid Nanostructure (CHyN), Universität Hamburg, 22761 Hamburg, Germany
| | - Kenneth Dawson
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin, Dublin 4, Ireland
| | - Wolfgang J. Parak
- Fachbereich Physik, Philipps Universität Marburg, 35037 Marburg, Germany
- Fachbereich Physik und Chemie, and Center for Hybrid Nanostructure (CHyN), Universität Hamburg, 22761 Hamburg, Germany
- CIC Biomagune, 20014 San Sebastian, Spain
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21
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Lazurko C, Ahumada M, Valenzuela-Henríquez F, Alarcon EI. NANoPoLC algorithm for correcting nanoparticle concentration by sample polydispersity. NANOSCALE 2018; 10:3166-3170. [PMID: 29388651 DOI: 10.1039/c7nr08672e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Variability in the polydispersity of colloidal nanoparticles results in significant differences in the total number of nanoparticles available for the determination of their concentration, which ultimately affects their bioavailability and biodistribution. In the current work, we developed a novel algorithm, named Nanoparticle Polydispersity Corrector (NANoPoLC), which was shown to render a more realistic calculation of the actual nanoparticle concentration in solution.
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Affiliation(s)
- Caitlin Lazurko
- Bio-nanomaterials Chemistry and Engineering Laboratory, Division of Cardiac Surgery, University of Ottawa Heart Institute, 40 Ruskin Street, Rm H5229, Ottawa, Canada.
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22
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Sambalova O, Thorwarth K, Heeb NV, Bleiner D, Zhang Y, Borgschulte A, Kroll A. Carboxylate Functional Groups Mediate Interaction with Silver Nanoparticles in Biofilm Matrix. ACS OMEGA 2018; 3:724-733. [PMID: 30023786 PMCID: PMC6044607 DOI: 10.1021/acsomega.7b00982] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Accepted: 12/27/2017] [Indexed: 05/27/2023]
Abstract
Biofilms causing medical conditions or interfering with technical applications can prove undesirably resistant to silver nanoparticle (AgNP)-based antimicrobial treatment, whereas beneficial biofilms may be adversely affected by the released silver nanoparticles. Isolated biofilm matrices can induce reduction of silver ions and stabilization of the formed nanosilver, thus altering the exposure conditions. We thus study the reduction of silver nitrate solution in model experiments under chemically defined conditions as well as in stream biofilms. Formed silver nanoparticles are characterized by state-of-the art methods. We find that isolated biopolymer fractions of biofilm organic matrix are capable of reducing ionic Ag, whereas other isolated fractions are not, meaning that biopolymer fractions contain both reducing agent and nucleation seed sites. In all of the investigated systems, we find that silver nanoparticle-biopolymer interface is dominated by carboxylate functional groups. This suggests that the mechanism of nanoparticle formation is of general nature. Moreover, we find that glucose concentration within the biofilm organic matrix correlates strongly with the nanoparticle formation rate. We propose a simple mechanistic explanation based on earlier literature and the experimental findings. The observed generality of the extracellular polymeric substance/AgNP system could be used to improve the understanding of impact of Ag+ on aqueous ecosystems, and consequently, to develop biofilm-specific medicines and bio-inspired water decontaminants.
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Affiliation(s)
- Olga Sambalova
- Laboratory
for Advanced Analytical Technologies, Coating Competence Center, and Electron Microscopy
Centre, Empa, Ueberlandstrasse 129, 8600 Dübendorf, Switzerland
- Department
of Chemistry, University Zürich, Winterthurerstrasse 190, 8057 Zürich, Switzerland
| | - Kerstin Thorwarth
- Laboratory
for Advanced Analytical Technologies, Coating Competence Center, and Electron Microscopy
Centre, Empa, Ueberlandstrasse 129, 8600 Dübendorf, Switzerland
| | - Norbert Victor Heeb
- Laboratory
for Advanced Analytical Technologies, Coating Competence Center, and Electron Microscopy
Centre, Empa, Ueberlandstrasse 129, 8600 Dübendorf, Switzerland
| | - Davide Bleiner
- Laboratory
for Advanced Analytical Technologies, Coating Competence Center, and Electron Microscopy
Centre, Empa, Ueberlandstrasse 129, 8600 Dübendorf, Switzerland
| | - Yucheng Zhang
- Laboratory
for Advanced Analytical Technologies, Coating Competence Center, and Electron Microscopy
Centre, Empa, Ueberlandstrasse 129, 8600 Dübendorf, Switzerland
| | - Andreas Borgschulte
- Laboratory
for Advanced Analytical Technologies, Coating Competence Center, and Electron Microscopy
Centre, Empa, Ueberlandstrasse 129, 8600 Dübendorf, Switzerland
- Department
of Chemistry, University Zürich, Winterthurerstrasse 190, 8057 Zürich, Switzerland
| | - Alexandra Kroll
- Department
of Environmental Toxicology, EAWAG, Ueberlandstrasse 133, 8600 Dübendorf, Switzerland
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23
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Dicarboxylic cellulose decorated with silver nanoparticles as sustainable antibacterial nanocomposite material. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.enmm.2017.08.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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24
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Persico M, Mikhaylin S, Doyen A, Firdaous L, Hammami R, Chevalier M, Flahaut C, Dhulster P, Bazinet L. Formation of peptide layers and adsorption mechanisms on a negatively charged cation-exchange membrane. J Colloid Interface Sci 2017; 508:488-499. [DOI: 10.1016/j.jcis.2017.08.029] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 08/07/2017] [Accepted: 08/09/2017] [Indexed: 11/17/2022]
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25
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Tavanti F, Pedone A, Matteini P, Menziani MC. Computational Insight into the Interaction of Cytochrome C with Wet and PVP-Coated Ag Surfaces. J Phys Chem B 2017; 121:9532-9540. [PMID: 28961402 DOI: 10.1021/acs.jpcb.7b07492] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In this work, the adsorption of cytochrome C (CytC) on wet {100}, {111}, {110}, and {120} silver surfaces has been investigated by computational simulations. The effect of polyvinylpyrrolidone (PVP) coating has also been studied. The main results obtained can be summarized as follow: (a) CytC strongly interacts with wet bare high index facets, while the adsorption over the {100} surface is disfavored due to the strong water structuring at the surface; (b) a nonselective protein adsorption mechanism is highlighted; (c) the native structure of CytC is well preserved during adsorption; (d) the heme group of CytC is never found to interact directly with the surface; (e) the interactions with the PVP-capped {100} surface is weak and specific. These results can be exploited to better control biological responses at engineered nanosurface, allowing the development of improved diagnostic tools.
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Affiliation(s)
- Francesco Tavanti
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia , Via G. Campi 103, 41125 Modena, Italy
| | - Alfonso Pedone
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia , Via G. Campi 103, 41125 Modena, Italy
| | - Paolo Matteini
- Institute of Applied Physics "Nello Carrara", National Research Council , Via Madonna del Piano 10, 50019 Sesto Fiorentino, Italy
| | - Maria Cristina Menziani
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia , Via G. Campi 103, 41125 Modena, Italy
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26
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Tanvir F, Yaqub A, Tanvir S, Anderson WA. Poly-L-arginine Coated Silver Nanoprisms and Their Anti-Bacterial Properties. NANOMATERIALS (BASEL, SWITZERLAND) 2017; 7:E296. [PMID: 28953233 PMCID: PMC5666461 DOI: 10.3390/nano7100296] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 09/13/2017] [Accepted: 09/22/2017] [Indexed: 01/28/2023]
Abstract
The aim of this study was to test the effect of two different morphologies of silver nanoparticles, spheres, and prisms, on their antibacterial properties when coated with poly-L-arginine (poly-Arg) to enhance the interactions with cells. Silver nanoparticle solutions were characterized by UV-visible spectroscopy, transmission electron microscopy, dynamic light scattering, zeta potential, as well as antimicrobial tests. These ultimately showed that a prismatic morphology exhibited stronger antimicrobial effects against Escherichia coli, Pseudomonas aeruginosa and Salmonella enterica. The minimum bactericidal concentration was found to be 0.65 μg/mL in the case of a prismatic AgNP-poly-Arg-PVP (silver nanoparticle-poly-L-arginine-polyvinylpyrrolidone) nanocomposite. The anticancer cell activity of the silver nanoparticles was also studied, where the maximum effect against a HeLa cell line was 80% mortality with a prismatic AgNP-poly-Arg-PVP nanocomposite at a concentration of 11 μg/mL. The antimicrobial activity of these silver nanocomposites demonstrates the potential of such coated silver nanoparticles in the area of nano-medicine.
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Affiliation(s)
- Fouzia Tanvir
- Department of Zoology, Government College University, Lahore 54000, Pakistan.
| | - Atif Yaqub
- Department of Zoology, Government College University, Lahore 54000, Pakistan.
| | - Shazia Tanvir
- Department of Chemical Engineering, University of Waterloo, Waterloo, ON N2L 3G1, Canada.
| | - William A Anderson
- Department of Chemical Engineering, University of Waterloo, Waterloo, ON N2L 3G1, Canada.
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27
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Walsh TR, Knecht MR. Biointerface Structural Effects on the Properties and Applications of Bioinspired Peptide-Based Nanomaterials. Chem Rev 2017; 117:12641-12704. [DOI: 10.1021/acs.chemrev.7b00139] [Citation(s) in RCA: 132] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Tiffany R. Walsh
- Institute
for Frontier Materials, Deakin University, Geelong, Victoria 3216, Australia
| | - Marc R. Knecht
- Department
of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, Florida 33146, United States
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28
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Slocik JM, Naik RR. Sequenced defined biomolecules for nanomaterial synthesis, functionalization, and assembly. Curr Opin Biotechnol 2017; 46:7-13. [DOI: 10.1016/j.copbio.2016.11.025] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Revised: 11/29/2016] [Accepted: 11/30/2016] [Indexed: 10/20/2022]
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29
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Poblete H, Miranda-Carvajal I, Comer J. Determinants of Alanine Dipeptide Conformational Equilibria on Graphene and Hydroxylated Derivatives. J Phys Chem B 2017; 121:3895-3907. [PMID: 28291356 DOI: 10.1021/acs.jpcb.7b01130] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Understanding the interaction of carbon nanomaterials with proteins is essential for determining the potential effects of these materials on health and in the design of biotechnology based on them. Here we leverage explicit-solvent molecular simulation and multidimensional free-energy calculations to investigate how adsorption to carbon nanomaterial surfaces affects the conformational equilibrium of alanine dipeptide, a widely used model of protein backbone structure. We find that the two most favorable structures of alanine dipeptide on graphene (or large carbon nanotubes) correspond to the two amide linkages lying in the same plane, flat against the surface, rather than the nonplanar α-helix-like and β-sheet-like conformations that predominate in aqueous solution. On graphenic surfaces, the latter conformations are metastable and most often correspond to amide-π stacking of the N-terminal amide. The calculations highlight the key role of amide-π interactions in determining the conformational equilibrium. Lesser but significant contributions from hydrogen bonding to the high density interfacial water layer or to the hydroxy groups of hydroxylated graphene also define the most favorable conformations. This work should yield insight on the influence of carbon nanotubes, graphene, and their functionalized derivatives on protein structure.
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Affiliation(s)
- Horacio Poblete
- Institute of Computational Comparative Medicine, Nanotechnology Innovation Center of Kansas State, Department of Anatomy and Physiology, Kansas State University , Manhattan, Kansas 66506-5802, United States
| | - Ingrid Miranda-Carvajal
- Universidad Nacional de Colombia , sede Bogotá, Facultad de Ciencias, Departamento de Química, Carrera 30 No. 45-03, Bogotá, 111321, Colombia
| | - Jeffrey Comer
- Institute of Computational Comparative Medicine, Nanotechnology Innovation Center of Kansas State, Department of Anatomy and Physiology, Kansas State University , Manhattan, Kansas 66506-5802, United States
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Ahumada M, Jacques E, Andronic C, Comer J, Poblete H, Alarcon EI. Novel specific peptides as superior surface stabilizers for silver nano structures: role of peptide chain length. J Mater Chem B 2017; 5:8925-8928. [DOI: 10.1039/c7tb02349a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Three collagen peptides containing the CLK motif were tested for silver nanoparticle surface stabilization.
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Affiliation(s)
- M. Ahumada
- Bio-Nanomaterials Chemistry and Engineering Laboratory
- Division of Cardiac Surgery
- University of Ottawa Heart Institute
- Ottawa
- Canada
| | - E. Jacques
- Bio-Nanomaterials Chemistry and Engineering Laboratory
- Division of Cardiac Surgery
- University of Ottawa Heart Institute
- Ottawa
- Canada
| | - C. Andronic
- Bio-Nanomaterials Chemistry and Engineering Laboratory
- Division of Cardiac Surgery
- University of Ottawa Heart Institute
- Ottawa
- Canada
| | - J. Comer
- Institute of Computational Comparative Medicine, Nanotechnology Innovation Center of Kansas State, and Department of Anatomy and Physiology
- Kansas State University
- USA
| | - H. Poblete
- Center for Bioinformatics and Molecular Simulations
- Facultad de Ingeniería
- Universidad de Talca
- Chile
| | - E. I. Alarcon
- Bio-Nanomaterials Chemistry and Engineering Laboratory
- Division of Cardiac Surgery
- University of Ottawa Heart Institute
- Ottawa
- Canada
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31
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Ahumada M, Lissi E, Montagut AM, Valenzuela-Henríquez F, Pacioni NL, Alarcon EI. Association models for binding of molecules to nanostructures. Analyst 2017; 142:2067-2089. [DOI: 10.1039/c7an00288b] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The interaction between nanoparticles and molecules determines the activity of nanostructures.
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Affiliation(s)
- Manuel Ahumada
- Bio-nanomaterials Chemistry and Engineering Laboratory
- Division of Cardiac Surgery
- University of Ottawa Heart Institute
- Rm H5229, Ottawa
- Canada
| | - Eduardo Lissi
- Laboratorio de Cinética y Fotoquímica
- Departamento de Ciencias del Ambiente-Facultad de Química y Biología
- Universidad de Santiago de Chile
- Santiago
- Chile
| | - Ana Maria Montagut
- Bio-nanomaterials Chemistry and Engineering Laboratory
- Division of Cardiac Surgery
- University of Ottawa Heart Institute
- Rm H5229, Ottawa
- Canada
| | | | - Natalia L. Pacioni
- INFIQC-CONICET and Universidad Nacional de Córdoba
- Departamento de Química Orgánica-Facultad de Ciencias Químicas
- Haya de la Torre y Medina Allende s/n
- X5000HUA
- Ciudad Universitaria
| | - Emilio I. Alarcon
- Bio-nanomaterials Chemistry and Engineering Laboratory
- Division of Cardiac Surgery
- University of Ottawa Heart Institute
- Rm H5229, Ottawa
- Canada
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Pal I, Brahmkhatri VP, Bera S, Bhattacharyya D, Quirishi Y, Bhunia A, Atreya HS. Enhanced stability and activity of an antimicrobial peptide in conjugation with silver nanoparticle. J Colloid Interface Sci 2016; 483:385-393. [DOI: 10.1016/j.jcis.2016.08.043] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Revised: 08/18/2016] [Accepted: 08/18/2016] [Indexed: 11/27/2022]
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McLaughlin S, Ahumada M, Franco W, Mah TF, Seymour R, Suuronen EJ, Alarcon EI. Sprayable peptide-modified silver nanoparticles as a barrier against bacterial colonization. NANOSCALE 2016; 8:19200-19203. [PMID: 27834428 DOI: 10.1039/c6nr07976h] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Sprayable formulations of AgNPs were prepared by exchanging citrate capping agents with LL37-SH peptides. The AgNP@LL37 material was then combined with type I collagen to form a stable film once sprayed. The AgNP@LL37 spray prevented Pseudomonas aeruginosa (P. aeruginosa) proliferation and eradicated a P. aeruginosa biofilm, while being non-toxic for human skin fibroblasts embedded within 3D artificial skin constructs. Finally, no silver infiltration was observed after spraying on a full-thickness skin wound in a mouse model.
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Affiliation(s)
- Sarah McLaughlin
- Division of Cardiac Surgery Research, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, Ontario K1Y 4W7, Canada.
| | - Manuel Ahumada
- Division of Cardiac Surgery Research, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, Ontario K1Y 4W7, Canada.
| | - Walfre Franco
- Wellman Centre for Photomedicine, Department of Dermatology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Thien-Fah Mah
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Richard Seymour
- Division of Cardiac Surgery Research, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, Ontario K1Y 4W7, Canada.
| | - Erik J Suuronen
- Division of Cardiac Surgery Research, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, Ontario K1Y 4W7, Canada.
| | - Emilio I Alarcon
- Division of Cardiac Surgery Research, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, Ontario K1Y 4W7, Canada. and Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
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Alarcon EI, Vulesevic B, Argawal A, Ross A, Bejjani P, Podrebarac J, Ravichandran R, Phopase J, Suuronen EJ, Griffith M. Coloured cornea replacements with anti-infective properties: expanding the safe use of silver nanoparticles in regenerative medicine. NANOSCALE 2016; 8:6484-6489. [PMID: 26949000 DOI: 10.1039/c6nr01339b] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Despite the broad anti-microbial and anti-inflammatory properties of silver nanoparticles (AgNPs), their use in bioengineered corneal replacements or bandage contact lenses has been hindered due to their intense yellow coloration. In this communication, we report the development of a new strategy to pre-stabilize and incorporate AgNPs with different colours into collagen matrices for fabrication of corneal implants and lenses, and assessed their in vitro and in vivo activity.
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Affiliation(s)
- E I Alarcon
- Bio-nanomaterials Chemistry and Engineering Laboratory, Division of Cardiac Surgery, University of Ottawa Heart Institute, 40 Ruskin Street, Rm H5229, Ottawa, Canada
| | - B Vulesevic
- Bio-nanomaterials Chemistry and Engineering Laboratory, Division of Cardiac Surgery, University of Ottawa Heart Institute, 40 Ruskin Street, Rm H5229, Ottawa, Canada
| | - A Argawal
- Bio-nanomaterials Chemistry and Engineering Laboratory, Division of Cardiac Surgery, University of Ottawa Heart Institute, 40 Ruskin Street, Rm H5229, Ottawa, Canada
| | - A Ross
- Bio-nanomaterials Chemistry and Engineering Laboratory, Division of Cardiac Surgery, University of Ottawa Heart Institute, 40 Ruskin Street, Rm H5229, Ottawa, Canada
| | - P Bejjani
- Bio-nanomaterials Chemistry and Engineering Laboratory, Division of Cardiac Surgery, University of Ottawa Heart Institute, 40 Ruskin Street, Rm H5229, Ottawa, Canada
| | - J Podrebarac
- Bio-nanomaterials Chemistry and Engineering Laboratory, Division of Cardiac Surgery, University of Ottawa Heart Institute, 40 Ruskin Street, Rm H5229, Ottawa, Canada
| | - R Ravichandran
- Department of Physics, Chemistry and Biology, Linköping University, SE 581 83 Linköping, Sweden
| | - J Phopase
- Department of Physics, Chemistry and Biology, Linköping University, SE 581 83 Linköping, Sweden
| | - E J Suuronen
- Bio-nanomaterials Chemistry and Engineering Laboratory, Division of Cardiac Surgery, University of Ottawa Heart Institute, 40 Ruskin Street, Rm H5229, Ottawa, Canada
| | - M Griffith
- Integrative Regenerative Medicine Centre, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden.
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35
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Spherical silver nanoparticles in the detection of thermally denatured collagens. Anal Bioanal Chem 2016; 408:1993-6. [PMID: 26847191 DOI: 10.1007/s00216-016-9330-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Revised: 12/27/2015] [Accepted: 01/12/2016] [Indexed: 10/22/2022]
Abstract
We have developed a rapid colorimetric method to determine the concentration of denatured collagen in solution, which is based on the collagen-silver nanoparticle corona formation. Using the proposed method, the lowest detectable concentration of denatured collagen protein in a solution of pure collagen was 14.7, 8.5, and 8.6 μg mL(-1) for porcine (PCOL), rat tail (RCOL), and type I human recombinant (HCOL) collagen, respectively.
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