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Redolfi-Bristol D, Yamamoto K, Marin E, Zhu W, Mazda O, Riello P, Pezzotti G. Exploring the cellular antioxidant mechanism against cytotoxic silver nanoparticles: a Raman spectroscopic analysis. NANOSCALE 2024; 16:9985-9997. [PMID: 38695726 DOI: 10.1039/d4nr00462k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2024]
Abstract
Silver nanoparticles (AgNPs) hold great promise for several different applications, from colorimetric sensors to antimicrobial agents. Despite their widespread incorporation in consumer products, limited understanding of the detrimental effects and cellular antioxidant responses associated with AgNPs at sublethal concentrations persists, raising concerns for human and ecological well-being. To address this gap, we synthesized AgNPs of varying sizes and evaluated their cytotoxicity against human dermal fibroblasts (HDF). Our study revealed that toxicity of AgNPs is a time- and size-dependent process, even at low exposure levels. AgNPs exhibited low short-term cytotoxicity but high long-term impact, particularly for the smallest NPs tested. Raman microspectroscopy was employed for in-time investigations of intracellular molecular variations during the first 24 h of exposure to AgNPs of 35 nm. Subtle protein and lipid degradations were detected, but no discernible damage to the DNA was observed. Signals associated with antioxidant proteins, such as superoxide dismutase (SOD), catalase (CAT) and metallothioneins (MTs), increased over time, reflecting the heightened production of these defense agents. Fluorescence microscopy further confirmed the efficacy of overexpressed antioxidant proteins in mitigating ROS formation during short-term exposure to AgNPs. This work provides valuable insights into the molecular changes and remedial strategies within the cellular environment, utilizing Raman microspectroscopy as an advanced analytical technique. These findings offer a novel perspective on the cytotoxicity mechanism of AgNPs, contributing to the development of safer materials and advice on regulatory guidelines for their biomedical applications.
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Affiliation(s)
- Davide Redolfi-Bristol
- Ceramic Physics Laboratory, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, 606-8585, Kyoto, Japan.
- Department of Immunology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyo-ku, Kyoto 602-8566, Japan
- Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca' Foscari di Venezia, Via Torino 155, 30172 Venezia, Italy
| | - Kenta Yamamoto
- Department of Immunology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyo-ku, Kyoto 602-8566, Japan
| | - Elia Marin
- Ceramic Physics Laboratory, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, 606-8585, Kyoto, Japan.
- Department Polytechnic of Engineering and Architecture, University of Udine, 33100, Udine, Italy
- Biomedical Research Center, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, Kyoto 606-8585, Japan
| | - Wenliang Zhu
- Ceramic Physics Laboratory, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, 606-8585, Kyoto, Japan.
| | - Osam Mazda
- Department of Immunology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyo-ku, Kyoto 602-8566, Japan
| | - Pietro Riello
- Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca' Foscari di Venezia, Via Torino 155, 30172 Venezia, Italy
| | - Giuseppe Pezzotti
- Ceramic Physics Laboratory, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, 606-8585, Kyoto, Japan.
- Department of Molecular Genetics, Institute of Biomedical Science, Kansai Medical University, 2-5-1 Shinmachi, Hiraka-ta, Osaka 573-1010, Japan
- Department of Immunology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyo-ku, Kyoto 602-8566, Japan
- Department of Dental Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyo-ku, Kyoto 602-8566, Japan
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishi-Shinjuku, Shinjuku-ku, 160-0023 Tokyo, Japan
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy
- Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca' Foscari di Venezia, Via Torino 155, 30172 Venezia, Italy
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Hernández J, Panadero-Medianero C, Arrázola MS, Ahumada M. Mimicking the Physicochemical Properties of the Cornea: A Low-Cost Approximation Using Highly Available Biopolymers. Polymers (Basel) 2024; 16:1118. [PMID: 38675037 PMCID: PMC11053614 DOI: 10.3390/polym16081118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 04/04/2024] [Accepted: 04/10/2024] [Indexed: 04/28/2024] Open
Abstract
Corneal diseases represent a significant global health challenge, often resulting in blindness, for which penetrating keratoplasty is the clinical gold standard. However, in cases involving compromised ocular surfaces or graft failure, osteo-odonto keratoprosthesis (OOKP) emerges as a vital yet costly and complex alternative. Thus, there is an urgent need to introduce soft biomaterials that mimic the corneal tissue, considering its translation's physicochemical, biological, and economic costs. This study introduces a cross-linked mixture of economically viable biomaterials, including gelatin, chitosan, and poly-D-lysine, that mimic corneal properties. The physicochemical evaluation of certain mixtures, specifically gelatin, chitosan, and poly-D-lysine cross-linked with 0.10% glutaraldehyde, demonstrates that properties such as swelling, optical transmittance, and thermal degradation are comparable to those of native corneas. Additionally, constructs fabricated with poly-D-lysine exhibit good cytocompatibility with fibroblasts at 72 h. These findings suggest that low-cost biopolymers, particularly those incorporating poly-D-lysine, mimic specific corneal characteristics and have the potential to foster fibroblast survival. While further studies are required to reach a final corneal-mimicking solution, this study contributes to positioning low-cost reagents as possible alternatives to develop biomaterials with physicochemical properties like those of the human cornea.
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Affiliation(s)
- Juan Hernández
- Centro de Nanotecnología Aplicada, Facultad de Ciencias, Ingeniería y Tecnología, Universidad Mayor, Camino La Pirámide 5750, Huechuraba 8580745, Santiago, Chile;
| | - Concepción Panadero-Medianero
- Centro de Biología Integrativa, Facultad de Ciencias, Ingeniería y Tecnología, Universidad Mayor, Camino La Pirámide 5750, Huechuraba 8580745, Santiago, Chile; (C.P.-M.); (M.S.A.)
| | - Macarena S. Arrázola
- Centro de Biología Integrativa, Facultad de Ciencias, Ingeniería y Tecnología, Universidad Mayor, Camino La Pirámide 5750, Huechuraba 8580745, Santiago, Chile; (C.P.-M.); (M.S.A.)
| | - Manuel Ahumada
- Centro de Nanotecnología Aplicada, Facultad de Ciencias, Ingeniería y Tecnología, Universidad Mayor, Camino La Pirámide 5750, Huechuraba 8580745, Santiago, Chile;
- Escuela de Biotecnología, Facultad de Ciencias, Ingeniería y Tecnología, Universidad Mayor, Camino La Pirámide 5750, Huechuraba 8580745, Santiago, Chile
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3
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Kim DY, Patel SKS, Rasool K, Lone N, Bhatia SK, Seth CS, Ghodake GS. Bioinspired silver nanoparticle-based nanocomposites for effective control of plant pathogens: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 908:168318. [PMID: 37956842 DOI: 10.1016/j.scitotenv.2023.168318] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 09/15/2023] [Accepted: 11/02/2023] [Indexed: 11/15/2023]
Abstract
Plant pathogens, including bacteria, fungi, and viruses, pose significant challenges to the farming community due to their extensive diversity, the rapidly evolving phenomenon of multi-drug resistance (MDR), and the limited availability of effective control measures. Amid mounting global pressure, particularly from the World Health Organization, to limit the use of antibiotics in agriculture and livestock management, there is increasing consideration of engineered nanomaterials (ENMs) as promising alternatives for antimicrobial applications. Studies focusing on the application of ENMs in the fight against MDR pathogens are receiving increasing attention, driven by significant losses in agriculture and critical knowledge gaps in this crucial field. In this review, we explore the potential contributions of silver nanoparticles (AgNPs) and their nanocomposites in combating plant diseases, within the emerging interdisciplinary arena of nano-phytopathology. AgNPs and their nanocomposites are increasingly acknowledged as promising countermeasures against plant pathogens, owing to their unique physicochemical characteristics and inherent antimicrobial properties. This review explores recent advancements in engineered nanocomposites, highlights their diverse mechanisms for pathogen control, and draws attention to their potential in antibacterial, antifungal, and antiviral applications. In the discussion, we briefly address three crucial dimensions of combating plant pathogens: green synthesis approaches, toxicity-environmental concerns, and factors influencing antimicrobial efficacy. Finally, we outline recent advancements, existing challenges, and prospects in scholarly research to facilitate the integration of nanotechnology across interdisciplinary fields for more effective treatment and prevention of plant diseases.
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Affiliation(s)
- Dae-Young Kim
- Department of Biological and Environmental Science, Dongguk University-Seoul, 32 Dongguk-ro, Ilsandong-gu, Goyang-si 10326, Gyeonggi-do, Republic of Korea
| | | | - Kashif Rasool
- Qatar Environment and Energy Research Institute (QEERI), Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar
| | - Nasreena Lone
- School of Allied Healthcare and Sciences, JAIN Deemed University, Whitefield, Bangalore 560066, India
| | - Shashi Kant Bhatia
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | | | - Gajanan Sampatrao Ghodake
- Department of Biological and Environmental Science, Dongguk University-Seoul, 32 Dongguk-ro, Ilsandong-gu, Goyang-si 10326, Gyeonggi-do, Republic of Korea.
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4
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Santos N, Valenzuela S, Segura C, Osorio-Roman I, Arrázola MS, Panadero-Medianero C, Santana PA, Ahumada M. Poly(ethylene imine)-chitosan carbon dots: study of its physical-chemical properties and biological in vitro performance. DISCOVER NANO 2023; 18:129. [PMID: 37847425 PMCID: PMC10581970 DOI: 10.1186/s11671-023-03907-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 10/03/2023] [Indexed: 10/18/2023]
Abstract
Carbon dots (CDs) have been quickly extended for nanomedicine uses because of their multiple applications, such as bioimaging, sensors, and drug delivery. However, the interest in increasing their photoluminescence properties is not always accompanied by cytocompatibility. Thus, a knowledge gap exists regarding their interactions with biological systems linked to the selected formulations and synthesis methods. In this work, we have developed carbon dots (CDs) based on poly (ethylene imine) (PEI) and chitosan (CS) by using microwave irradiation, hydrothermal synthesis, and a combination of both, and further characterized them by physicochemical and biological means. Our results indicate that synthesized CDs have sizes between 1 and 5 nm, a high presence of amine groups on the surface, and increased positive ζ potential values. Further, it is established that the choice and use of different synthesis procedures can contribute to a different answer to the CDs regarding their optical and biological properties. In this regard, PEI-only CDs showed the longest photoluminescent emission lifetime, non-hemolytic activity, and high toxicity against fibroblast. On the other hand, CS-only CDs have higher PL emission, non-cytotoxicity associated with fibroblast, and high hemolytic activity. Interestingly, their combination using the proposed methodologies allow a synergic effect in their CDs properties. Therefore, this work contributes to developing and characterizing CD formulations based on PEI and CS and better understanding the CD's properties and biological interaction.
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Affiliation(s)
- Nicolás Santos
- Escuela de Biotecnología, Facultad de Ciencias, Ingeniería y Tecnología, Universidad Mayor, Camino La Pirámide 5750, Huechuraba, Santiago, RM, Chile
| | - Santiago Valenzuela
- Instituto de Ciencias Aplicadas, Universidad Autónoma de Chile, El Llano Subercaseaux 2801, San Miguel, Santiago, Chile
| | - Camilo Segura
- Instituto de Ciencias Químicas, Facultad de Ciencias, Universidad Austral de Chile, Isla Teja S/N, Valdivia, Región de los Ríos, Chile
| | - Igor Osorio-Roman
- Instituto de Ciencias Químicas, Facultad de Ciencias, Universidad Austral de Chile, Isla Teja S/N, Valdivia, Región de los Ríos, Chile
| | - Macarena S Arrázola
- Centro de Biología Integrativa, Facultad de Ciencias, Ingeniería y Tecnología, Universidad Mayor, Camino La Pirámide 5750, Huechuraba, Santiago, RM, Chile
| | - Concepción Panadero-Medianero
- Centro de Biología Integrativa, Facultad de Ciencias, Ingeniería y Tecnología, Universidad Mayor, Camino La Pirámide 5750, Huechuraba, Santiago, RM, Chile
| | - Paula A Santana
- Instituto de Ciencias Aplicadas, Universidad Autónoma de Chile, El Llano Subercaseaux 2801, San Miguel, Santiago, Chile.
| | - Manuel Ahumada
- Escuela de Biotecnología, Facultad de Ciencias, Ingeniería y Tecnología, Universidad Mayor, Camino La Pirámide 5750, Huechuraba, Santiago, RM, Chile.
- Centro de Nanotecnología Aplicada, Facultad de Ciencias, Ingeniería y Tecnología, Universidad Mayor, Camino La Pirámide 5750, Huechuraba, Santiago, RM, Chile.
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Garg SS, Dubey R, Sharma S, Vyas A, Gupta J. Biological macromolecules-based nanoformulation in improving wound healing and bacterial biofilm-associated infection: A review. Int J Biol Macromol 2023; 247:125636. [PMID: 37392924 DOI: 10.1016/j.ijbiomac.2023.125636] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 06/19/2023] [Accepted: 06/28/2023] [Indexed: 07/03/2023]
Abstract
A chronic wound is a serious complication associated with diabetes mellitus and is difficult to heal due to high glucose levels, oxidative stress, and biofilm-associated microbial infection. The structural complexity of microbial biofilm makes it impossible for antibiotics to penetrate the matrix, hence conventional antibiotic therapies became ineffective in clinical settings. This demonstrates an urgent need to find safer alternatives to reduce the prevalence of chronic wound infection associated with microbial biofilm. A novel approach to address these concerns is to inhibit biofilm formation using biological-macromolecule based nano-delivery system. Higher drug loading efficiency, sustained drug release, enhanced drug stability, and improved bioavailability are advantages of employing nano-drug delivery systems to prevent microbial colonization and biofilm formation in chronic wounds. This review covers the pathogenesis, microbial biofilm formation, and immune response to chronic wounds. Furthermore, we also focus on macromolecule-based nanoparticles as wound healing therapies to reduce the increased mortality associated with chronic wound infections.
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Affiliation(s)
- Sourbh Suren Garg
- Department of Biochemistry, School of Bioengineering and Biosciences, Lovely Professional University, Punjab, India
| | - Rupal Dubey
- Department of Medical Laboratory Sciences, School of Allied Medical Sciences, Lovely Professional University, Punjab, India
| | - Sandeep Sharma
- Department of Medical Laboratory Sciences, School of Allied Medical Sciences, Lovely Professional University, Punjab, India
| | - Ashish Vyas
- Department of Microbiology, School of Bioengineering and Biosciences, Lovely Professional University, Punjab, India
| | - Jeena Gupta
- Department of Biochemistry, School of Bioengineering and Biosciences, Lovely Professional University, Punjab, India.
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6
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In Vitro Models of Biological Barriers for Nanomedical Research. Int J Mol Sci 2022; 23:ijms23168910. [PMID: 36012181 PMCID: PMC9408841 DOI: 10.3390/ijms23168910] [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: 07/19/2022] [Revised: 08/06/2022] [Accepted: 08/08/2022] [Indexed: 12/13/2022] Open
Abstract
Nanoconstructs developed for biomedical purposes must overcome diverse biological barriers before reaching the target where playing their therapeutic or diagnostic function. In vivo models are very complex and unsuitable to distinguish the roles plaid by the multiple biological barriers on nanoparticle biodistribution and effect; in addition, they are costly, time-consuming and subject to strict ethical regulation. For these reasons, simplified in vitro models are preferred, at least for the earlier phases of the nanoconstruct development. Many in vitro models have therefore been set up. Each model has its own pros and cons: conventional 2D cell cultures are simple and cost-effective, but the information remains limited to single cells; cell monolayers allow the formation of cell–cell junctions and the assessment of nanoparticle translocation across structured barriers but they lack three-dimensionality; 3D cell culture systems are more appropriate to test in vitro nanoparticle biodistribution but they are static; finally, bioreactors and microfluidic devices can mimicking the physiological flow occurring in vivo thus providing in vitro biological barrier models suitable to reliably assess nanoparticles relocation. In this evolving context, the present review provides an overview of the most representative and performing in vitro models of biological barriers set up for nanomedical research.
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Liang Y, Liang Y, Zhang H, Guo B. Antibacterial biomaterials for skin wound dressing. Asian J Pharm Sci 2022; 17:353-384. [PMID: 35782328 PMCID: PMC9237601 DOI: 10.1016/j.ajps.2022.01.001] [Citation(s) in RCA: 170] [Impact Index Per Article: 85.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 01/05/2022] [Accepted: 01/14/2022] [Indexed: 02/07/2023] Open
Abstract
Bacterial infection and the ever-increasing bacterial resistance have imposed severe threat to human health. And bacterial contamination could significantly menace the wound healing process. Considering the sophisticated wound healing process, novel strategies for skin tissue engineering are focused on the integration of bioactive ingredients, antibacterial agents included, into biomaterials with different morphologies to improve cell behaviors and promote wound healing. However, a comprehensive review on anti-bacterial wound dressing to enhance wound healing has not been reported. In this review, various antibacterial biomaterials as wound dressings will be discussed. Different kinds of antibacterial agents, including antibiotics, nanoparticles (metal and metallic oxides, light-induced antibacterial agents), cationic organic agents, and others, and their recent advances are summarized. Biomaterial selection and fabrication of biomaterials with different structures and forms, including films, hydrogel, electrospun nanofibers, sponge, foam and three-dimension (3D) printed scaffold for skin regeneration, are elaborated discussed. Current challenges and the future perspectives are presented in this multidisciplinary field. We envision that this review will provide a general insight to the elegant design and further refinement of wound dressing.
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Affiliation(s)
- Yuqing Liang
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi’an Jiaotong University, Xi’an 710049, China
- State Key Laboratory for Mechanical Behavior of Materials, and Frontier Institute of Science and Technology, Xi’an Jiaotong University, Xi’an 710049, China
| | - Yongping Liang
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi’an Jiaotong University, Xi’an 710049, China
- State Key Laboratory for Mechanical Behavior of Materials, and Frontier Institute of Science and Technology, Xi’an Jiaotong University, Xi’an 710049, China
| | - Hualei Zhang
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi’an Jiaotong University, Xi’an 710049, China
- State Key Laboratory for Mechanical Behavior of Materials, and Frontier Institute of Science and Technology, Xi’an Jiaotong University, Xi’an 710049, China
| | - Baolin Guo
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi’an Jiaotong University, Xi’an 710049, China
- State Key Laboratory for Mechanical Behavior of Materials, and Frontier Institute of Science and Technology, Xi’an Jiaotong University, Xi’an 710049, China
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The Antibiofilm Nanosystems for Improved Infection Inhibition of Microbes in Skin. Molecules 2021; 26:molecules26216392. [PMID: 34770799 PMCID: PMC8587837 DOI: 10.3390/molecules26216392] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 10/18/2021] [Accepted: 10/19/2021] [Indexed: 12/13/2022] Open
Abstract
Biofilm formation is an important virulence factor for the opportunistic microorganisms that elicit skin infections. The recalcitrant feature of biofilms and their antibiotic tolerance impose a great challenge on the use of conventional therapies. Most antibacterial agents have difficulty penetrating the matrix produced by a biofilm. One novel approach to address these concerns is to prevent or inhibit the formation of biofilms using nanoparticles. The advantages of using nanosystems for antibiofilm applications include high drug loading efficiency, sustained or prolonged drug release, increased drug stability, improved bioavailability, close contact with bacteria, and enhanced accumulation or targeting to biomasses. Topically applied nanoparticles can act as a strategy for enhancing antibiotic delivery into the skin. Various types of nanoparticles, including metal oxide nanoparticles, polymeric nanoparticles, liposomes, and lipid-based nanoparticles, have been employed for topical delivery to treat biofilm infections on the skin. Moreover, nanoparticles can be designed to combine with external stimuli to produce magnetic, photothermal, or photodynamic effects to ablate the biofilm matrix. This study focuses on advanced antibiofilm approaches based on nanomedicine for treating skin infections. We provide in-depth descriptions on how the nanoparticles could effectively eliminate biofilms and any pathogens inside them. We then describe cases of using nanoparticles for antibiofilm treatment of the skin. Most of the studies included in this review were supported by in vivo animal infection models. This article offers an overview of the benefits of nanosystems for treating biofilms grown on the skin.
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Ridyard KE, Overhage J. The Potential of Human Peptide LL-37 as an Antimicrobial and Anti-Biofilm Agent. Antibiotics (Basel) 2021; 10:antibiotics10060650. [PMID: 34072318 PMCID: PMC8227053 DOI: 10.3390/antibiotics10060650] [Citation(s) in RCA: 86] [Impact Index Per Article: 28.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 05/20/2021] [Accepted: 05/25/2021] [Indexed: 02/06/2023] Open
Abstract
The rise in antimicrobial resistant bacteria threatens the current methods utilized to treat bacterial infections. The development of novel therapeutic agents is crucial in avoiding a post-antibiotic era and the associated deaths from antibiotic resistant pathogens. The human antimicrobial peptide LL-37 has been considered as a potential alternative to conventional antibiotics as it displays broad spectrum antibacterial and anti-biofilm activities as well as immunomodulatory functions. While LL-37 has shown promising results, it has yet to receive regulatory approval as a peptide antibiotic. Despite the strong antimicrobial properties, LL-37 has several limitations including high cost, lower activity in physiological environments, susceptibility to proteolytic degradation, and high toxicity to human cells. This review will discuss the challenges associated with making LL-37 into a viable antibiotic treatment option, with a focus on antimicrobial resistance and cross-resistance as well as adaptive responses to sub-inhibitory concentrations of the peptide. The possible methods to overcome these challenges, including immobilization techniques, LL-37 delivery systems, the development of LL-37 derivatives, and synergistic combinations will also be considered. Herein, we describe how combination therapy and structural modifications to the sequence, helicity, hydrophobicity, charge, and configuration of LL-37 could optimize the antimicrobial and anti-biofilm activities of LL-37 for future clinical use.
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He JJ, McCarthy C, Camci-Unal G. Development of Hydrogel‐Based Sprayable Wound Dressings for Second‐ and Third‐Degree Burns. ADVANCED NANOBIOMED RESEARCH 2021. [DOI: 10.1002/anbr.202100004] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Affiliation(s)
- Jacqueline Jialu He
- Department of Chemical Engineering University of Massachusetts Lowell One University Avenue Lowell MA 01854 USA
- Biomedical Engineering and Biotechnology Program University of Massachusetts Lowell One University Avenue Lowell MA 01854 USA
| | - Colleen McCarthy
- Department of Chemical Engineering University of Massachusetts Lowell One University Avenue Lowell MA 01854 USA
| | - Gulden Camci-Unal
- Department of Chemical Engineering University of Massachusetts Lowell One University Avenue Lowell MA 01854 USA
- Department of Surgery University of Massachusetts Medical School 55 Lake Avenue Worcester MA 01655 USA
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Dermatillomania: Strategies for Developing Protective Biomaterials/Cloth. Pharmaceutics 2021; 13:pharmaceutics13030341. [PMID: 33808008 PMCID: PMC8001957 DOI: 10.3390/pharmaceutics13030341] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 02/23/2021] [Accepted: 02/25/2021] [Indexed: 01/30/2023] Open
Abstract
Dermatillomania or skin picking disorder (SPD) is a chronic, recurrent, and treatment resistant neuropsychiatric disorder with an underestimated prevalence that has a concerning negative impact on an individual’s health and quality of life. The current treatment strategies focus on behavioral and pharmacological therapies that are not very effective. Thus, the primary objective of this review is to provide an introduction to SPD and discuss its current treatment strategies as well as to propose biomaterial-based physical barrier strategies as a supporting or alternative treatment. To this end, searches were conducted within the PubMed database and Google Scholar, and the results obtained were organized and presented as per the following categories: prevalence, etiology, consequences, diagnostic criteria, and treatment strategies. Furthermore, special attention was provided to alternative treatment strategies and biomaterial-based physical treatment strategies. A total of six products with the potential to be applied as physical barrier strategies in supporting SPD treatment were shortlisted and discussed. The results indicated that SPD is a complex, underestimated, and underemphasized neuropsychiatric disorder that needs heightened attention, especially with regard to its treatment and care. Moreover, the high synergistic potential of biomaterials and nanosystems in this area remains to be explored. Certain strategies that are already being utilized for wound healing can also be further exploited, particularly as far as the prevention of infections is concerned.
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12
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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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13
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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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14
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Hosoyama K, Ahumada M, Goel K, Ruel M, Suuronen EJ, Alarcon EI. Electroconductive materials as biomimetic platforms for tissue regeneration. Biotechnol Adv 2019; 37:444-458. [DOI: 10.1016/j.biotechadv.2019.02.011] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 02/03/2019] [Accepted: 02/19/2019] [Indexed: 02/07/2023]
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15
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Jeong Y, Jo YK, Kim BJ, Yang B, Joo KI, Cha HJ. Sprayable Adhesive Nanotherapeutics: Mussel-Protein-Based Nanoparticles for Highly Efficient Locoregional Cancer Therapy. ACS NANO 2018; 12:8909-8919. [PMID: 30052423 DOI: 10.1021/acsnano.8b04533] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Following surgical resection for primary treatment of solid tumors, systemic chemotherapy is commonly used to eliminate residual cancer cells to prevent tumor recurrence. However, its clinical outcome is often limited due to insufficient local accumulation and the systemic toxicity of anticancer drugs. Here, we propose a sprayable adhesive nanoparticle (NP)-based drug delivery system using a bioengineered mussel adhesive protein (MAP) for effective locoregional cancer therapy. The MAP NPs could be administered to target surfaces in a surface-independent manner through a simple and easy spray process by virtue of their unique adhesion ability and sufficient dispersion property. Doxorubicin (DOX)-loaded MAP NPs (MAP@DOX NPs) exhibited efficient cellular uptake, endolysosomal trafficking, and subsequent low pH microenvironment-induced DOX release in cancer cells. The locally sprayed MAP@DOX NPs showed a significant inhibition of tumor growth in vivo, resulting from the prolonged retention of the MAP@DOX NPs on the tumor surface. Thus, this adhesive MAP NP-based spray therapeutic system provides a promising approach for topical drug delivery in adjuvant cancer therapy.
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Affiliation(s)
- Yeonsu Jeong
- Department of Chemical Engineering , Pohang University of Science and Technology , Pohang 37673 , Korea
| | - Yun Kee Jo
- Department of Chemical Engineering , Pohang University of Science and Technology , Pohang 37673 , Korea
| | - Bum Jin Kim
- Department of Chemical Engineering , Pohang University of Science and Technology , Pohang 37673 , Korea
| | - Byeongseon Yang
- Department of Chemical Engineering , Pohang University of Science and Technology , Pohang 37673 , Korea
| | - Kye Il Joo
- Department of Chemical Engineering , Pohang University of Science and Technology , Pohang 37673 , Korea
| | - Hyung Joon Cha
- Department of Chemical Engineering , Pohang University of Science and Technology , Pohang 37673 , Korea
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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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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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18
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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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19
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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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20
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Mathur P, Jha S, Ramteke S, Jain NK. Pharmaceutical aspects of silver nanoparticles. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2017; 46:115-126. [DOI: 10.1080/21691401.2017.1414825] [Citation(s) in RCA: 99] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Prateek Mathur
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Rajiv Gandhi Technical University, Bhopal, India
| | - Swati Jha
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Rajiv Gandhi Technical University, Bhopal, India
| | - Suman Ramteke
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Rajiv Gandhi Technical University, Bhopal, India
| | - N. K. Jain
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Rajiv Gandhi Technical University, Bhopal, India
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21
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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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22
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Allison S, Ahumada M, Andronic C, McNeill B, Variola F, Griffith M, Ruel M, Hamel V, Liang W, Suuronen EJ, Alarcon EI. Electroconductive nanoengineered biomimetic hybrid fibers for cardiac tissue engineering. J Mater Chem B 2017; 5:2402-2406. [PMID: 32264547 DOI: 10.1039/c7tb00405b] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
We report for the first time the preparation of a fibrous material composed of surface grafted spherical nanosilver and collagen using one-step electrospinning. The resulting composite showed comparable morphology to the control without nanosilver, but had improved electrical conductivity. Under electrical stimulation, fibrous materials containing nanosilver increased connexin-43 expression and proliferation of neonatal cardiomyocytes. Furthermore, composites containing nanosilver prevented biofilm formation but did not activate macrophages.
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Affiliation(s)
- Shelby Allison
- Division of Cardiac Surgery, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, Ontario K1Y 4W7, Canada.
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23
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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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24
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Hosoyama K, Ahumada M, McTiernan CD, Bejjani J, Variola F, Ruel M, Xu B, Liang W, Suuronen EJ, Alarcon EI. Multi-functional thermo-crosslinkable collagen-metal nanoparticle composites for tissue regeneration: nanosilver vs. nanogold. RSC Adv 2017. [DOI: 10.1039/c7ra08960k] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Collagen–silver/gold biomimetic matrices were developed for cardiac tissue engineering.
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Affiliation(s)
- K. Hosoyama
- Division of Cardiac Surgery
- University of Ottawa Heart Institute
- Ottawa
- Canada
| | - M. Ahumada
- Division of Cardiac Surgery
- University of Ottawa Heart Institute
- Ottawa
- Canada
| | - C. D. McTiernan
- Division of Cardiac Surgery
- University of Ottawa Heart Institute
- Ottawa
- Canada
| | - J. Bejjani
- Division of Cardiac Surgery
- University of Ottawa Heart Institute
- Ottawa
- Canada
| | - F. Variola
- Department of Mechanical Engineering
- University of Ottawa
- Canada
| | - M. Ruel
- Division of Cardiac Surgery
- University of Ottawa Heart Institute
- Ottawa
- Canada
- Department of Cellular and Molecular Medicine
| | - B. Xu
- Department of Cellular and Molecular Medicine
- University of Ottawa
- Canada
- Cardiac Electrophysiology Lab
- University of Ottawa Heart Institute
| | - W. Liang
- Department of Cellular and Molecular Medicine
- University of Ottawa
- Canada
- Cardiac Electrophysiology Lab
- University of Ottawa Heart Institute
| | - E. J. Suuronen
- Division of Cardiac Surgery
- University of Ottawa Heart Institute
- Ottawa
- Canada
- Department of Cellular and Molecular Medicine
| | - E. I. Alarcon
- Division of Cardiac Surgery
- University of Ottawa Heart Institute
- Ottawa
- Canada
- Department of Biochemistry, Microbiology, and Immunology
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