551
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Paladini F, Pollini M. Antimicrobial Silver Nanoparticles for Wound Healing Application: Progress and Future Trends. MATERIALS 2019; 12:ma12162540. [PMID: 31404974 PMCID: PMC6719912 DOI: 10.3390/ma12162540] [Citation(s) in RCA: 183] [Impact Index Per Article: 36.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 08/04/2019] [Accepted: 08/05/2019] [Indexed: 01/28/2023]
Abstract
Recent data have reported that the burden of infections related to antibiotic-resistant bacteria in the European Union and European Economic Area (EEA) can be estimated as the cumulative burden of tuberculosis, influenza, and human immunodeficiency virus (HIV). In wound management, the control of infections represents a crucial issue and a multi-billion dollar industry worldwide. For diabetic wounds ulcers, in particular, infections are related to the majority of amputations in diabetic patients, which today represent an increasing number of the elderly. The greatest barrier to healing is represented by the biofilm, an organized consortium of bacteria encapsulated in a self-produced extracellular polymeric substance with high resistance to conventional antimicrobial therapies. There is an urgent need for novel anti-biofilm strategies and novel antimicrobial agents and, in this scenario, silver nanotechnology has received tremendous attention in recent years in therapeutically enhanced healthcare. Due to its intrinsic therapeutic properties and the broad-spectrum antimicrobial efficacy, silver nanoparticles have opened new horizons towards novel approaches in the control of infections in wound healing. This review aims at providing the reader with an overview of the most recent progress in silver nanotechnology, with a special focus on the role of silver in the wound healing process.
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Affiliation(s)
- Federica Paladini
- Department of Engineering for Innovation, University of Salento, Via Monteroni, 73100 Lecce, Italy.
| | - Mauro Pollini
- Department of Engineering for Innovation, University of Salento, Via Monteroni, 73100 Lecce, Italy.
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552
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Morris D, Ansar M, Speshock J, Ivanciuc T, Qu Y, Casola A, Garofalo R. Antiviral and Immunomodulatory Activity of Silver Nanoparticles in Experimental RSV Infection. Viruses 2019; 11:v11080732. [PMID: 31398832 PMCID: PMC6723559 DOI: 10.3390/v11080732] [Citation(s) in RCA: 106] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 07/30/2019] [Accepted: 08/06/2019] [Indexed: 12/28/2022] Open
Abstract
Respiratory syncytial virus (RSV) is an important etiological agent of respiratory infection in children for which no specific treatment option is available. The RSV virion contains two surface glycoproteins (F and G) that are vital for the initial phases of infection, making them critical targets for RSV therapeutics. Recent studies have identified the broad-spectrum antiviral properties of silver nanoparticles (AgNPs) against respiratory pathogens, such as adenovirus, parainfluenza, and influenza. AgNPs achieve this by attaching to viral glycoproteins, blocking entry into the host cell. The objective of this study was to evaluate the antiviral and immunomodulatory effects of AgNPs in RSV infection. Herein we demonstrate AgNP-mediated reduction in RSV replication, both in epithelial cell lines and in experimentally infected BALB/c mice. Marked reduction in pro-inflammatory cytokines (i.e., IL-1α, IL-6, TNF-α) and pro-inflammatory chemokines (i.e., CCL2, CCL3, CCL5) was also observed. Conversely, CXCL1, G-CSF, and GM-CSF were increased in RSV-infected mice treated with AgNPs, consistent with an increase of neutrophil recruitment and activation in the lung tissue. Following experimental antibody-dependent depletion of neutrophils, the antiviral effect of AgNPs in mice treated was ablated. To our knowledge, this is the first in vivo report demonstrating antiviral activity of AgNPs during RSV infection.
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Affiliation(s)
- Dorothea Morris
- Division of Clinical and Experimental Immunology and Infectious Disease (CEIID), Department of Pediatrics, University of Texas Medical Branch, Galveston, TX 77555, USA
- Department of Biological Sciences, Tarleton State University, Stephenville, TX 76401, USA
| | - Maria Ansar
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Janice Speshock
- Department of Biological Sciences, Tarleton State University, Stephenville, TX 76401, USA
| | - Teodora Ivanciuc
- Division of Clinical and Experimental Immunology and Infectious Disease (CEIID), Department of Pediatrics, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Yue Qu
- Division of Clinical and Experimental Immunology and Infectious Disease (CEIID), Department of Pediatrics, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Antonella Casola
- Division of Clinical and Experimental Immunology and Infectious Disease (CEIID), Department of Pediatrics, University of Texas Medical Branch, Galveston, TX 77555, USA
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Roberto Garofalo
- Division of Clinical and Experimental Immunology and Infectious Disease (CEIID), Department of Pediatrics, University of Texas Medical Branch, Galveston, TX 77555, USA.
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX 77555, USA.
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553
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Vallet-Regí M, González B, Izquierdo-Barba I. Nanomaterials as Promising Alternative in the Infection Treatment. Int J Mol Sci 2019; 20:E3806. [PMID: 31382674 PMCID: PMC6696612 DOI: 10.3390/ijms20153806] [Citation(s) in RCA: 88] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 07/31/2019] [Accepted: 08/02/2019] [Indexed: 02/01/2023] Open
Abstract
Both the prevalence of antibiotic resistance and the increased biofilm-associated infections are boosting the demand for new advanced and more effective treatment for such infections. In this sense, nanotechnology offers a ground-breaking platform for addressing this challenge. This review shows the current progress in the field of antimicrobial inorganic-based nanomaterials and their activity against bacteria and bacterial biofilm. Herein, nanomaterials preventing the bacteria adhesion and nanomaterials treating the infection once formed are presented through a classification based on their functionality. To fight infection, nanoparticles with inherent antibacterial activity and nanoparticles acting as nanovehicles are described, emphasizing the design of the carrier nanosystems with properties targeting the bacteria and the biofilm.
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Affiliation(s)
- María Vallet-Regí
- Departamento de Química en Ciencias Farmacéuticas, Unidad de Química Inorgánica y Bioinorgánica, Universidad Complutense de Madrid. Instituto de Investigación Sanitaria Hospital 12 de Octubre i+12. Plaza Ramón y Cajal s/n, Madrid 28040, Spain.
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, CIBER-BBN, Madrid 28040, Spain.
| | - Blanca González
- Departamento de Química en Ciencias Farmacéuticas, Unidad de Química Inorgánica y Bioinorgánica, Universidad Complutense de Madrid. Instituto de Investigación Sanitaria Hospital 12 de Octubre i+12. Plaza Ramón y Cajal s/n, Madrid 28040, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, CIBER-BBN, Madrid 28040, Spain
| | - Isabel Izquierdo-Barba
- Departamento de Química en Ciencias Farmacéuticas, Unidad de Química Inorgánica y Bioinorgánica, Universidad Complutense de Madrid. Instituto de Investigación Sanitaria Hospital 12 de Octubre i+12. Plaza Ramón y Cajal s/n, Madrid 28040, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, CIBER-BBN, Madrid 28040, Spain
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554
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Wekwejt M, Michno A, Truchan K, Pałubicka A, Świeczko-Żurek B, Osyczka AM, Zieliński A. Antibacterial Activity and Cytocompatibility of Bone Cement Enriched with Antibiotic, Nanosilver, and Nanocopper for Bone Regeneration. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E1114. [PMID: 31382557 PMCID: PMC6722923 DOI: 10.3390/nano9081114] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 07/29/2019] [Accepted: 07/30/2019] [Indexed: 12/11/2022]
Abstract
Bacterial infections due to bone replacement surgeries require modifications of bone cement with antibacterial components. This study aimed to investigate whether the incorporation of gentamicin or nanometals into bone cement may reduce and to what extent bacterial growth without the loss of overall cytocompatibility and adverse effects in vitro. The bone cement Cemex was used as the base material, modified either with gentamicin sulfate or nanometals: Silver or copper. The inhibition of bacterial adhesion and growth was examined against five different bacterial strains along with integrity of erythrocytes, viability of blood platelets, and dental pulp stem cells. Bone cement modified with nanoAg or nanoCu revealed greater bactericidal effects and prevented the biofilm formation better compared to antibiotic-loaded bone cement. The cement containing nanoAg displayed good cytocompatibility without noticeable hemolysis of erythrocytes or blood platelet disfunction and good viability of dental pulp stem cells (DPSC). On the contrary, the nanoCu cement enhanced hemolysis of erythrocytes, reduced the platelets aggregation, and decreased DPSC viability. Based on these studies, we suggest the modification of bone cement with nanoAg may be a good strategy to provide improved implant fixative for bone regeneration purposes.
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Affiliation(s)
- Marcin Wekwejt
- Biomaterials Division, Department of Materials Engineering and Bonding, Gdańsk University of Technology, 80-233 Gdańsk, Poland.
| | - Anna Michno
- Chair of Clinical Biochemistry, Department of Laboratory Medicine, Medical University of Gdańsk, 80-210 Gdańsk, Poland
| | - Karolina Truchan
- Department of Biology and Cell Imaging, Institute of Zoology and Biomedical Research, Faculty of Biology, Jagiellonian University, 30-387 Kraków, Poland
| | - Anna Pałubicka
- Department of Laboratory Diagnostics and Microbiology with Blood Bank, Specialist Hospital in Kościerzyna, 83-400 Kościerzyna, Poland
- Department of Surgical Oncologic, Medical University of Gdańsk, 80-210 Gdańsk, Poland
| | - Beata Świeczko-Żurek
- Biomaterials Division, Department of Materials Engineering and Bonding, Gdańsk University of Technology, 80-233 Gdańsk, Poland
| | - Anna Maria Osyczka
- Department of Biology and Cell Imaging, Institute of Zoology and Biomedical Research, Faculty of Biology, Jagiellonian University, 30-387 Kraków, Poland
| | - Andrzej Zieliński
- Biomaterials Division, Department of Materials Engineering and Bonding, Gdańsk University of Technology, 80-233 Gdańsk, Poland
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555
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Liao C, Li Y, Tjong SC. Antibacterial Activities of Aliphatic Polyester Nanocomposites with Silver Nanoparticles and/or Graphene Oxide Sheets. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E1102. [PMID: 31374855 PMCID: PMC6724040 DOI: 10.3390/nano9081102] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 07/21/2019] [Accepted: 07/25/2019] [Indexed: 12/18/2022]
Abstract
Aliphatic polyesters such as poly(lactic acid) (PLA), polycaprolactone (PCL) and poly(lactic-co-glycolic) acid (PLGA) copolymers have been widely used as biomaterials for tissue engineering applications including: bone fixation devices, bone scaffolds, and wound dressings in orthopedics. However, biodegradable aliphatic polyesters are prone to bacterial infections due to the lack of antibacterial moieties in their macromolecular chains. In this respect, silver nanoparticles (AgNPs), graphene oxide (GO) sheets and AgNPs-GO hybrids can be used as reinforcing nanofillers for aliphatic polyesters in forming antimicrobial nanocomposites. However, polymeric matrix materials immobilize nanofillers to a large extent so that they cannot penetrate bacterial membrane into cytoplasm as in the case of colloidal nanoparticles or nanosheets. Accordingly, loaded GO sheets of aliphatic polyester nanocomposites have lost their antibacterial functions such as nanoknife cutting, blanket wrapping and membrane phospholipid extraction. In contrast, AgNPs fillers of polyester nanocomposites can release silver ions for destroying bacterial cells. Thus, AgNPs fillers are more effective than loaded GO sheets of polyester nanocomposiites in inhibiting bacterial infections. Aliphatic polyester nanocomposites with AgNPs and AgNPs-GO fillers are effective to kill multi-drug resistant bacteria that cause medical device-related infections.
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Affiliation(s)
- Chengzhu Liao
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Yuchao Li
- Department of Materials Science and Engineering, Liaocheng University, Liaocheng 252000, China
| | - Sie Chin Tjong
- Department of Physics, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong 999077, China.
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556
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Teran R, Guevara R, Mora J, Dobronski L, Barreiro-Costa O, Beske T, Pérez-Barrera J, Araya-Maturana R, Rojas-Silva P, Poveda A, Heredia-Moya J. Characterization of Antimicrobial, Antioxidant, and Leishmanicidal Activities of Schiff Base Derivatives of 4-Aminoantipyrine. Molecules 2019; 24:E2696. [PMID: 31344947 PMCID: PMC6696115 DOI: 10.3390/molecules24152696] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 04/08/2019] [Accepted: 04/08/2019] [Indexed: 01/26/2023] Open
Abstract
Our main interest is the characterization of compounds to support the development of alternatives to currently marketed drugs that are losing effectiveness due to the development of resistance. Schiff bases are promising biologically interesting compounds having a wide range of pharmaceutical properties, including anti-inflammatory, antipyretic, and antimicrobial activities, among others. In this work, we have synthesized 12 Schiff base derivatives of 4-aminoantipyrine. In vitro antimicrobial, antioxidant, and cytotoxicity properties are analyzed, as well as in silico predictive adsorption, distribution, metabolism, and excretion (ADME) and bioactivity scores. Results identify two potential Schiff bases: one effective against E. faecalis and the other with antioxidant activity. Both have reasonable ADME scores and provides a scaffold for developing more effective compounds in the future. Initial studies are usually limited to laboratory in vitro approaches, and following these initial studies, much research is needed before a drug can reach the clinic. Nevertheless, these laboratory approaches are mandatory and constitute a first filter to discriminate among potential drug candidates and chemical compounds that should be discarded.
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Affiliation(s)
- Rommy Teran
- Facultad de Ciencias Químicas, Universidad Central del Ecuador, Quito 170521, Ecuador
| | - Rommel Guevara
- Facultad de Ciencias Químicas, Universidad Central del Ecuador, Quito 170521, Ecuador
- Instituto de Investigación en Salud Pública y Zoonosis-CIZ, Universidad Central del Ecuador, Quito 170521, Ecuador
| | - Jessica Mora
- Facultad de Ciencias Químicas, Universidad Central del Ecuador, Quito 170521, Ecuador
| | - Lizeth Dobronski
- Centro de Investigación Traslacional, Universidad De Las Américas, Quito 170503, Ecuador
| | - Olalla Barreiro-Costa
- Centro de Investigación Traslacional, Universidad De Las Américas, Quito 170503, Ecuador
- Centro de Investigación Biomédica (CENBIO), Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito 170527, Ecuador
| | - Timo Beske
- Instituto de Investigación en Salud Pública y Zoonosis-CIZ, Universidad Central del Ecuador, Quito 170521, Ecuador
- Facultad de Medicina Veterinaria, Universidad Central del Ecuador, Quito 170521, Ecuador
| | - Jorge Pérez-Barrera
- Facultad de Ciencias Químicas, Universidad Central del Ecuador, Quito 170521, Ecuador
- Instituto de Investigación en Salud Pública y Zoonosis-CIZ, Universidad Central del Ecuador, Quito 170521, Ecuador
| | - Ramiro Araya-Maturana
- Instituto de Química de Recursos Naturales, Programa de Investigación Asociativa en Cáncer Gástrico (PIA-CG), Universidad de Talca, Talca 3460000, Chile
| | - Patricio Rojas-Silva
- Centro de Investigación Traslacional, Universidad De Las Américas, Quito 170503, Ecuador
- Centro de Investigación Biomédica (CENBIO), Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito 170527, Ecuador
| | - Ana Poveda
- Facultad de Ciencias Químicas, Universidad Central del Ecuador, Quito 170521, Ecuador.
- Instituto de Investigación en Salud Pública y Zoonosis-CIZ, Universidad Central del Ecuador, Quito 170521, Ecuador.
| | - Jorge Heredia-Moya
- Centro de Investigación Traslacional, Universidad De Las Américas, Quito 170503, Ecuador.
- Centro de Investigación Biomédica (CENBIO), Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito 170527, Ecuador.
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557
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Nakamura S, Sato M, Sato Y, Ando N, Takayama T, Fujita M, Ishihara M. Synthesis and Application of Silver Nanoparticles (Ag NPs) for the Prevention of Infection in Healthcare Workers. Int J Mol Sci 2019; 20:E3620. [PMID: 31344881 PMCID: PMC6695748 DOI: 10.3390/ijms20153620] [Citation(s) in RCA: 104] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 07/19/2019] [Accepted: 07/23/2019] [Indexed: 12/21/2022] Open
Abstract
Silver is easily available and is known to have microbicidal effect; moreover, it does not impose any adverse effects on the human body. The microbicidal effect is mainly due to silver ions, which have a wide antibacterial spectrum. Furthermore, the development of multidrug-resistant bacteria, as in the case of antibiotics, is less likely. Silver ions bind to halide ions, such as chloride, and precipitate; therefore, when used directly, their microbicidal activity is shortened. To overcome this issue, silver nanoparticles (Ag NPs) have been recently synthesized and frequently used as microbicidal agents that release silver ions from particle surface. Depending on the specific surface area of the nanoparticles, silver ions are released with high efficiency. In addition to their bactericidal activity, small Ag NPs (<10 nm in diameter) affect viruses although the microbicidal effect of silver mass is weak. Because of their characteristics, Ag NPs are useful countermeasures against infectious diseases, which constitute a major issue in the medical field. Thus, medical tools coated with Ag NPs are being developed. This review outlines the synthesis and utilization of Ag NPs in the medical field, focusing on environment-friendly synthesis and the suppression of infections in healthcare workers (HCWs).
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Affiliation(s)
- Shingo Nakamura
- Division of Biomedical Engineering, National Defense Medical College Research Institute, Saitama 359-8513, Japan.
| | - Masahiro Sato
- Section of Gene Expression Regulation, Frontier Science Research Center, Kagoshima University, Kagoshima 890-8544, Japan
| | - Yoko Sato
- Division of Biomedical Engineering, National Defense Medical College Research Institute, Saitama 359-8513, Japan
| | - Naoko Ando
- Division of Biomedical Engineering, National Defense Medical College Research Institute, Saitama 359-8513, Japan
| | - Tomohiro Takayama
- Department of Oral and Maxillofacial Surgery, National Defense Medical College Hospital, Saitama 359-8513, Japan
| | - Masanori Fujita
- Division of Environmental Medicine, National Defense Medical College Research Institute, Saitama 359-8513, Japan
| | - Masayuki Ishihara
- Division of Biomedical Engineering, National Defense Medical College Research Institute, Saitama 359-8513, Japan
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558
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Prakash V, Bhar R, Sharma S, Mehta SK. Photophysical deactivation behaviour of Rhodamine B using different graphite materials. RSC Adv 2019; 9:22320-22326. [PMID: 35519473 PMCID: PMC9066896 DOI: 10.1039/c9ra03325d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Accepted: 07/07/2019] [Indexed: 11/21/2022] Open
Abstract
In the present work, an attempt has been made to elucidate the structural features of synthesized graphite materials, i.e., expanded graphite (EG) and an expanded graphite/silver nanoparticles (EG/AgNPs) nanocomposite. In order to obtain knowledge about the functional groups present, the interlayer spacing between the carbon layers, topographical features, and the characterization of the materials were carried out using Fourier-transformer infrared spectroscopy, X-ray diffraction, Raman spectroscopy, field emission scanning electron microscopy-energy dispersive X-ray spectroscopy and atomic force microscope. Furthermore, the quenching efficiency of the synthesized graphite materials was also compared using Rhodamine B (Rhd B) as a fluorescent probe. The non-linear behaviour of the Stern–Volmer plots suggested that the complex quenching mechanism (a combination of static and dynamic quenching) was responsible for the decrease in photoluminescence intensity. At a lower concentration of the quencher, the static quenching mechanism was dominant whereas at a higher concentration dynamic processes seemed to be more likely. The binding strength of the complexation between the fluorophore and the quencher at lower concentrations was studied in detail for both of the synthesized materials. The analysis showed that the EG/AgNPs exhibited better quenching efficiency and possessed a strong binding strength in comparison to EG. The thermodynamic parameters of this association suggested that the interaction process was spontaneous and exothermic in nature. Thus, this work offers helpful insights into the fluorescence quenching mechanisms of the Rhd B/EG and its composite system. Graphical representation of varying quenching mechanism of RhD B dye using different graphite materials i.e. EG and EG/AgNPs.![]()
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Affiliation(s)
- Varnika Prakash
- Institute of Forensic Science and Criminology, Panjab University Chandigarh 160014 India
| | - Rekha Bhar
- Department of Chemistry, Centre of Advanced Studies, Panjab University Chandigarh 160014 India
| | - Shweta Sharma
- Institute of Forensic Science and Criminology, Panjab University Chandigarh 160014 India
| | - S K Mehta
- Department of Chemistry, Centre of Advanced Studies, Panjab University Chandigarh 160014 India
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559
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Das G, Patra JK, Basavegowda N, Vishnuprasad CN, Shin HS. Comparative study on antidiabetic, cytotoxicity, antioxidant and antibacterial properties of biosynthesized silver nanoparticles using outer peels of two varieties of Ipomoea batatas (L.) Lam. Int J Nanomedicine 2019; 14:4741-4754. [PMID: 31456635 PMCID: PMC6620772 DOI: 10.2147/ijn.s210517] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2019] [Accepted: 05/06/2019] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Ipomoea batatas (L.) Lam.(Ib) has high content of various beneficial nutrients which helps in improving and maintaining human health. It is well known as a functional food and also a valuable source of unique natural products. It contains various phenolic and flavonoid bioactive compounds. METHODS In this study, using the outer peel of two varieties of Ib : Korean red skin sweet potato and Korean pumpkin sweet potato, silver nanoparticles (AgNPs) were synthesized (termed Ib1-AgNps and Ib2-AgNps), respectively. Characterization of Ib1-AgNPs and Ib2-AgNPs was carried out through scanning electron microscopy, Fourier-transform infrared (FT-IR) spectroscopy, energy-dispersive X-ray analysis, X-ray powder diffraction and UV-Vis spectroscopy. Further, the bio-potential of the synthesized AgNPs was investigated by antidiabetic (α-glucosidase assay), antioxidant (free radical scavenging assays), antibacterial (disc diffusion method) and cytotoxicity assays (cell viability against HepG2 cells). RESULTS FT-IR spectroscopy revealed the contribution of bioactive compounds existing in Ib1 and Ib2 extracts, in the biosynthesis and equilibrium of the AgNPs. Although the Ib2-AgNPs had a higher atomic percentage of Ag in comparison with Ib1-AgNPs, in the antidiabetic assay, the inhibition percentage of α-glucosidase was higher for AgNPs of Ib1 than Ib2, at all three concentrations examined. From the cytotoxicity results, HepG2 cancer cells were more sensitive to the Ib1-AgNPs in comparison to the Ib2-AgNPs-treated HepG2 cells. The antioxidant prospective was higher in Ib2-AgNPs than Ib1-AgNPs. Moreover, the Ib2-AgNPs showed inhibitory action against all five tested pathogenic bacteria, producing an inhibition zone of 8.74-11.52 mm while Ib1-AgNPs had an inhibitory effect on four of them, with an 8.67-11.23 (mm) inhibition zone. CONCLUSIONS Overall, the results concluded that the Ib2-AgNPs exhibited relatively higher functional activity than Ib1-AgNPs, which might be credited to the greater abundance of bioactive compounds existing in Ib2 extract that acted as reducing as well as capping agents in the synthesis of Ib2-AgNPs. Overall, the current study highlights a novel cost-effective and eco-friendly AgNPs synthesis using food waste peels with biocompatibility and could be potentially utilized in biomedical and pharmaceutical industries.
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Affiliation(s)
- Gitishree Das
- Research Institute of Biotechnology & Medical Converged Science, Dongguk University, Seoul, Gyeonggi-do10326, Republic of Korea
| | - Jayanta Kumar Patra
- Research Institute of Biotechnology & Medical Converged Science, Dongguk University, Seoul, Gyeonggi-do10326, Republic of Korea
| | - Nagaraj Basavegowda
- Department of Biotechnology, Yeungnam University, Gyeongsan, Republic of Korea
| | - Chethala N Vishnuprasad
- Centre for Ayurveda Biology and Holistic Nutrition, The University of Trans-Disciplinary Health Sciences and Technology (TDU), Bengaluru560064, India
| | - Han-Seung Shin
- Department of Food Science and Biotechnology, Dongguk University, Seoul, Gyeonggi‐do10326, Republic of Korea
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560
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Zhang L, Wu L, Mi Y, Si Y. Silver Nanoparticles Induced Cell Apoptosis, Membrane Damage of Azotobacter vinelandii and Nitrosomonas europaea via Generation of Reactive Oxygen Species. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2019; 103:181-186. [PMID: 31049596 DOI: 10.1007/s00128-019-02622-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 04/22/2019] [Indexed: 06/09/2023]
Abstract
Silver nanoparticles (AgNPs) is widely used as an antibacterial agent, but the specific antibacterial mechanism is still conflicting. This study aimed to investigate the size dependent inhibition of AgNPs and the relationship between inhibition and reactive oxygen species (ROS). Azotobactervinelandii and Nitrosomonaseuropaea were exposed to AgNPs with different particles size (10 nm and 50 nm). The ROS production was measured and the results showed that the generation of ROS related to the particle size and concentrations of AgNPs. At 10 mg/L of 10 nm Ag particles, the apoptosis rate of A. vinelandii and N. europaea were 20.23% and 1.87% respectively. Additionally, the necrosis rate of A. vinelandii and N. europaea reached to 15.20% and 42.20% respectively. Furthermore, transmission electron microscopy images also indicated that AgNPs caused severely bacterial cell membrane damage. Together these data suggested that the toxicity of AgNPs depends on its particle size and overproduction of ROS.
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Affiliation(s)
- Li Zhang
- Anhui Province Key Laboratory of Farmland Ecological Conservation and Pollution Prevention, School of Resources and Environment, Anhui Agricultural University, Hefei, China
| | - Lingli Wu
- Anhui Province Key Laboratory of Farmland Ecological Conservation and Pollution Prevention, School of Resources and Environment, Anhui Agricultural University, Hefei, China
| | - Yazhu Mi
- Anhui Province Key Laboratory of Farmland Ecological Conservation and Pollution Prevention, School of Resources and Environment, Anhui Agricultural University, Hefei, China
| | - Youbin Si
- Anhui Province Key Laboratory of Farmland Ecological Conservation and Pollution Prevention, School of Resources and Environment, Anhui Agricultural University, Hefei, China.
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561
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Efficient reduction of Toluidine Blue O dye using silver nanoparticles synthesized by low molecular weight chitosans. Int J Biol Macromol 2019; 131:682-690. [DOI: 10.1016/j.ijbiomac.2019.03.119] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 02/03/2019] [Accepted: 03/18/2019] [Indexed: 11/22/2022]
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562
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Yan N, He X, Tang BZ, Wang WX. Differentiating Silver Nanoparticles and Ions in Medaka Larvae by Coupling Two Aggregation-Induced Emission Fluorophores. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:5895-5905. [PMID: 31032615 DOI: 10.1021/acs.est.9b01156] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Although numerous studies have been conducted on the toxicity and biodistribution of AgNPs and corresponding ionic counterparts, it is still debatable whether the toxicity originates from the accumulation of particles within specific organs or is mediated by the dissolved Ag ions. To gain a better insight into the toxic mechanisms of AgNPs, two aggregation-induced emission fluorogens (AIEgens; AIEgens-coated AgNPs and a fluorogenic Ag+ sensor) were employed for the in situ visualization and quantitative analysis of distribution patterns of AIE-AgNPs and corresponding Ag ions in different organs of medaka larvae. The 96 h LC50 of AIEgens-coated AgNPs (AIE-AgNPs) was 10-20 mg/L, which was much higher than that of the citrate-coated AgNPs (Cit-AgNPs, 2.39-3.24 mg/L) and AgNO3 (0.23 mg/L), suggesting that the AIE-AgNPs were much more biocompability than Cit-AgNPs or AgNO3. The LC50 of AgNO3 was approximately 10% of the LC50 of Cit-AgNPs, which was comparable to the percentage of Ag+ released from Cit-AgNPs. The novel AIE method for the first time simultaneously analyzed the quantitative distribution patterns of AIE-AgNPs and corresponding Ag ions in different organs of medaka larvae. AIE-AgNPs and Ag ions showed distinct distribution patterns, in which AIE-AgNPs were concentrated in intestine and liver, accounting for 53.4% and 32.1% of the total AIE-AgNPs accumulated in medaka larvae, respectively. In contrast, Ag ions were accumulated mainly (92.5%) in the intestine of medaka larvae. The toxicity of AgNPs toward medaka larvae was attributed mainly to the released Ag ions which could potentially disrupt the absorptive capacity of the intestinal epithelium and induce digestive dysfunction. Our study provided a new technique for simultaneous monitoring of the AgNPs and corresponding Ag ions in the biological systems.
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Affiliation(s)
- Neng Yan
- Department of Ocean Science , The Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong, HKUST Shenzhen Research Institute , Shenzhen 518057 , China
| | - Xuewen He
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction , The Hong Kong University of Science and Technology (HKUST) , Clear Water Bay, Kowloon , Hong Kong China
| | - Ben Zhong Tang
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction , The Hong Kong University of Science and Technology (HKUST) , Clear Water Bay, Kowloon , Hong Kong China
| | - Wen-Xiong Wang
- Department of Ocean Science , The Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong, HKUST Shenzhen Research Institute , Shenzhen 518057 , China
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563
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Mo L, Guo Z, Yang L, Zhang Q, Fang Y, Xin Z, Chen Z, Hu K, Han L, Li L. Silver Nanoparticles Based Ink with Moderate Sintering in Flexible and Printed Electronics. Int J Mol Sci 2019; 20:E2124. [PMID: 31036787 PMCID: PMC6539082 DOI: 10.3390/ijms20092124] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Revised: 03/27/2019] [Accepted: 04/07/2019] [Indexed: 12/28/2022] Open
Abstract
Printed electronics on flexible substrates has attracted tremendous research interest research thanks its low cost, large area production capability and environmentally friendly advantages. Optimal characteristics of silver nanoparticles (Ag NPs) based inks are crucial for ink rheology, printing, post-print treatment, and performance of the printed electronics devices. In this review, the methods and mechanisms for obtaining Ag NPs based inks that are highly conductive under moderate sintering conditions are summarized. These characteristics are particularly important when printed on temperature sensitive substrates that cannot withstand sintering of high temperature. Strategies to tailor the protective agents capping on the surface of Ag NPs, in order to optimize the sizes and shapes of Ag NPs as well as to modify the substrate surface, are presented. Different (emerging) sintering technologies are also discussed, including photonic sintering, electrical sintering, plasma sintering, microwave sintering, etc. Finally, applications of the Ag NPs based ink in transparent conductive film (TCF), thin film transistor (TFT), biosensor, radio frequency identification (RFID) antenna, stretchable electronics and their perspectives on flexible and printed electronics are presented.
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Affiliation(s)
- Lixin Mo
- Beijing Engineering Research Center of Printed Electronics, Beijing Institute of Graphic Communication, Beijing 102600, China.
| | - Zhenxin Guo
- Beijing Engineering Research Center of Printed Electronics, Beijing Institute of Graphic Communication, Beijing 102600, China.
| | - Li Yang
- Research Institutes of Sweden (RISE), RISE Bioeconomy, Drottning Kristinas väg 61, 11428 Stockholm, Sweden.
| | - Qingqing Zhang
- Beijing Engineering Research Center of Printed Electronics, Beijing Institute of Graphic Communication, Beijing 102600, China.
| | - Yi Fang
- Beijing Engineering Research Center of Printed Electronics, Beijing Institute of Graphic Communication, Beijing 102600, China.
| | - Zhiqing Xin
- Beijing Engineering Research Center of Printed Electronics, Beijing Institute of Graphic Communication, Beijing 102600, China.
| | - Zheng Chen
- Shine Optoelectronics (Kunshan) Co., Ltd., Shenzhou Industrial Park, No. 33 Yuanfeng Rd, Kunshan 215300, China.
| | - Kun Hu
- Beijing Engineering Research Center of Printed Electronics, Beijing Institute of Graphic Communication, Beijing 102600, China.
| | - Lu Han
- Beijing Engineering Research Center of Printed Electronics, Beijing Institute of Graphic Communication, Beijing 102600, China.
| | - Luhai Li
- Beijing Engineering Research Center of Printed Electronics, Beijing Institute of Graphic Communication, Beijing 102600, China.
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564
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García-Serradilla M, Risco C, Pacheco B. Drug repurposing for new, efficient, broad spectrum antivirals. Virus Res 2019; 264:22-31. [PMID: 30794895 PMCID: PMC7114681 DOI: 10.1016/j.virusres.2019.02.011] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 02/18/2019] [Accepted: 02/18/2019] [Indexed: 12/26/2022]
Abstract
Emerging viruses are a major threat to human health. Recent outbreaks have emphasized the urgent need for new antiviral treatments. For several pathogenic viruses, considerable efforts have focused on vaccine development. However, during epidemics infected individuals need to be treated urgently. High-throughput screening of clinically tested compounds provides a rapid means to identify undiscovered, antiviral functions for well-characterized therapeutics. Repurposed drugs can bypass part of the early cost and time needed for validation and authorization. In this review we describe recent efforts to find broad spectrum antivirals through drug repurposing. We have chosen several candidates and propose strategies to understand their mechanism of action and to determine how resistance to antivirals develops in infected cells.
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Affiliation(s)
- Moisés García-Serradilla
- Cell Structure Laboratory, National Center for Biotechnology, National Research Council, CNB-CSIC, Darwin 3, UAM, campus de Cantoblanco, 28049 Madrid, Spain
| | - Cristina Risco
- Cell Structure Laboratory, National Center for Biotechnology, National Research Council, CNB-CSIC, Darwin 3, UAM, campus de Cantoblanco, 28049 Madrid, Spain.
| | - Beatriz Pacheco
- Cell Structure Laboratory, National Center for Biotechnology, National Research Council, CNB-CSIC, Darwin 3, UAM, campus de Cantoblanco, 28049 Madrid, Spain.
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565
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Rafael D, Andrade F, Martinez-Trucharte F, Basas J, Seras-Franzoso J, Palau M, Gomis X, Pérez-Burgos M, Blanco A, López-Fernández A, Vélez R, Abasolo I, Aguirre M, Gavaldà J, Schwartz S. Sterilization Procedure for Temperature-Sensitive Hydrogels Loaded with Silver Nanoparticles for Clinical Applications. NANOMATERIALS 2019; 9:nano9030380. [PMID: 30845683 PMCID: PMC6474025 DOI: 10.3390/nano9030380] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Revised: 02/14/2019] [Accepted: 02/18/2019] [Indexed: 12/18/2022]
Abstract
Hydrogels (HG) have recognized benefits as drug delivery platforms for biomedical applications. Their high sensitivity to sterilization processes is however one of the greatest challenges regarding their clinical translation. Concerning infection diseases, prevention of post-operatory related infections is crucial to ensure appropriate patient recovery and good clinical outcomes. Silver nanoparticles (AgNPs) have shown good antimicrobial properties but sustained release at the right place is required. Thus, we produced and characterized thermo-sensitive HG based on Pluronic® F127 loaded with AgNPs (HG-AgNPs) and their integrity and functionality after sterilization by dry-heat and autoclave methods were carefully assessed. The quality attributes of HG-AgNPs were seriously affected by dry-heat methods but not by autoclaving methods, which allowed to ensure the required sterility. Also, direct sterilization of the final HG-AgNPs product proved more effective than of the raw material, allowing simpler production procedures in non-sterile conditions. The mechanical properties were assessed in post mortem rat models and the HG-AgNPs were tested for its antimicrobial properties in vitro using extremely drug-resistant (XDR) clinical strains. The produced HG-AgNPs prove to be versatile, easy produced and cost-effective products, with activity against XDR strains and an adequate gelation time and spreadability features and optimal for in situ biomedical applications.
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Affiliation(s)
- Diana Rafael
- Drug Delivery and Targeting Group, Molecular Biology and Biochemistry Research Centre for Nanomedicine (CIBBIM-Nanomedicine), Vall d'Hebron Institut de Recerca (VHIR), Universitat Autònoma de Barcelona (UAB), 08035 Barcelona, Spain.
- Networking Research Centre for Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Instituto de Salud Carlos III, 28029 Madrid, Spain.
| | - Fernanda Andrade
- Drug Delivery and Targeting Group, Molecular Biology and Biochemistry Research Centre for Nanomedicine (CIBBIM-Nanomedicine), Vall d'Hebron Institut de Recerca (VHIR), Universitat Autònoma de Barcelona (UAB), 08035 Barcelona, Spain.
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-180 Porto, Portugal.
- INEB-Instituto Nacional de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, 4200-180 Porto, Portugal.
| | - Francesc Martinez-Trucharte
- Drug Delivery and Targeting Group, Molecular Biology and Biochemistry Research Centre for Nanomedicine (CIBBIM-Nanomedicine), Vall d'Hebron Institut de Recerca (VHIR), Universitat Autònoma de Barcelona (UAB), 08035 Barcelona, Spain.
| | - Jana Basas
- Antimicrobial Resistance Laboratory, Vall d'Hebron Research Institute (VHIR), Department of Infectious Diseases, Hospital Universitari Vall d'Hebron, 08035 Barcelona, Spain.
- Spanish Network for Research in Infectious Diseases (REIPI RD16/0016/0003), Instituto de Salud Carlos III, 28029 Madrid, Spain.
| | - Joaquín Seras-Franzoso
- Drug Delivery and Targeting Group, Molecular Biology and Biochemistry Research Centre for Nanomedicine (CIBBIM-Nanomedicine), Vall d'Hebron Institut de Recerca (VHIR), Universitat Autònoma de Barcelona (UAB), 08035 Barcelona, Spain.
| | - Marta Palau
- Antimicrobial Resistance Laboratory, Vall d'Hebron Research Institute (VHIR), Department of Infectious Diseases, Hospital Universitari Vall d'Hebron, 08035 Barcelona, Spain.
- Spanish Network for Research in Infectious Diseases (REIPI RD16/0016/0003), Instituto de Salud Carlos III, 28029 Madrid, Spain.
| | - Xavier Gomis
- Antimicrobial Resistance Laboratory, Vall d'Hebron Research Institute (VHIR), Department of Infectious Diseases, Hospital Universitari Vall d'Hebron, 08035 Barcelona, Spain.
| | - Marc Pérez-Burgos
- Drug Delivery and Targeting Group, Molecular Biology and Biochemistry Research Centre for Nanomedicine (CIBBIM-Nanomedicine), Vall d'Hebron Institut de Recerca (VHIR), Universitat Autònoma de Barcelona (UAB), 08035 Barcelona, Spain.
| | - Alberto Blanco
- Orthopedic Surgery Department, Hospital Universitari Vall d'Hebron, Universitat Autònoma de Barcelona (UAB), 08035 Barcelona, Spain.
- Musculoskeletal Tissue Engineering Group, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona (UAB), Passeig de la Vall d'Hebron 129-139, 08035 Barcelona, Spain.
| | - Alba López-Fernández
- Musculoskeletal Tissue Engineering Group, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona (UAB), Passeig de la Vall d'Hebron 129-139, 08035 Barcelona, Spain.
| | - Roberto Vélez
- Orthopedic Surgery Department, Hospital Universitari Vall d'Hebron, Universitat Autònoma de Barcelona (UAB), 08035 Barcelona, Spain.
- Musculoskeletal Tissue Engineering Group, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona (UAB), Passeig de la Vall d'Hebron 129-139, 08035 Barcelona, Spain.
| | - Ibane Abasolo
- Drug Delivery and Targeting Group, Molecular Biology and Biochemistry Research Centre for Nanomedicine (CIBBIM-Nanomedicine), Vall d'Hebron Institut de Recerca (VHIR), Universitat Autònoma de Barcelona (UAB), 08035 Barcelona, Spain.
- Networking Research Centre for Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Instituto de Salud Carlos III, 28029 Madrid, Spain.
| | - Màrius Aguirre
- Orthopedic Surgery Department, Hospital Universitari Vall d'Hebron, Universitat Autònoma de Barcelona (UAB), 08035 Barcelona, Spain.
| | - Joan Gavaldà
- Antimicrobial Resistance Laboratory, Vall d'Hebron Research Institute (VHIR), Department of Infectious Diseases, Hospital Universitari Vall d'Hebron, 08035 Barcelona, Spain.
- Spanish Network for Research in Infectious Diseases (REIPI RD16/0016/0003), Instituto de Salud Carlos III, 28029 Madrid, Spain.
| | - Simó Schwartz
- Drug Delivery and Targeting Group, Molecular Biology and Biochemistry Research Centre for Nanomedicine (CIBBIM-Nanomedicine), Vall d'Hebron Institut de Recerca (VHIR), Universitat Autònoma de Barcelona (UAB), 08035 Barcelona, Spain.
- Networking Research Centre for Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Instituto de Salud Carlos III, 28029 Madrid, Spain.
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566
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Lee SH, Jun BH. Silver Nanoparticles: Synthesis and Application for Nanomedicine. Int J Mol Sci 2019; 20:ijms20040865. [PMID: 30781560 PMCID: PMC6412188 DOI: 10.3390/ijms20040865] [Citation(s) in RCA: 517] [Impact Index Per Article: 103.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 02/10/2019] [Accepted: 02/15/2019] [Indexed: 02/07/2023] Open
Abstract
Over the past few decades, metal nanoparticles less than 100 nm in diameter have made a substantial impact across diverse biomedical applications, such as diagnostic and medical devices, for personalized healthcare practice. In particular, silver nanoparticles (AgNPs) have great potential in a broad range of applications as antimicrobial agents, biomedical device coatings, drug-delivery carriers, imaging probes, and diagnostic and optoelectronic platforms, since they have discrete physical and optical properties and biochemical functionality tailored by diverse size- and shape-controlled AgNPs. In this review, we aimed to present major routes of synthesis of AgNPs, including physical, chemical, and biological synthesis processes, along with discrete physiochemical characteristics of AgNPs. We also discuss the underlying intricate molecular mechanisms behind their plasmonic properties on mono/bimetallic structures, potential cellular/microbial cytotoxicity, and optoelectronic property. Lastly, we conclude this review with a summary of current applications of AgNPs in nanoscience and nanomedicine and discuss their future perspectives in these areas.
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Affiliation(s)
- Sang Hun Lee
- Department of Bioengineering, University of California Berkeley, Berkeley, CA 94720, USA.
| | - Bong-Hyun Jun
- Department of Bioscience and Biotechnology, Konkuk University, 1 Hwayang-dong, Gwanjin-gu, Seoul 143-701, Korea.
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567
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Antibacterial Silicon Oxide Thin Films Doped with Zinc and Copper Grown by Atmospheric Pressure Plasma Chemical Vapor Deposition. NANOMATERIALS 2019; 9:nano9020255. [PMID: 30781817 PMCID: PMC6409802 DOI: 10.3390/nano9020255] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Revised: 02/06/2019] [Accepted: 02/11/2019] [Indexed: 12/30/2022]
Abstract
Zn-doped and Cu-doped SiOx films were synthesized by atmospheric pressure plasma chemical vapor deposition to study their antibacterial efficiency against Gram-negative Escherichia coli and their cytotoxic effect on the growth of mouse cells. Zn-rich and Cu-rich particles with diameters up to several microns were found to be homogeneously distributed within the SiOx films. For both doping elements, bacteria are killed within the first three hours after exposure to the film surface. In contrast, mouse cells grow well on the surfaces of both film types, with a slight inhibition present only after the first day of exposure. The obtained results indicate that the films show a high potential for use as effective antibacterial surfaces for medical applications.
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568
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Liao C, Li Y, Tjong SC. Bactericidal and Cytotoxic Properties of Silver Nanoparticles. Int J Mol Sci 2019; 20:E449. [PMID: 30669621 PMCID: PMC6359645 DOI: 10.3390/ijms20020449] [Citation(s) in RCA: 416] [Impact Index Per Article: 83.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 01/14/2019] [Accepted: 01/17/2019] [Indexed: 12/16/2022] Open
Abstract
Silver nanoparticles (AgNPs) can be synthesized from a variety of techniques including physical, chemical and biological routes. They have been widely used as nanomaterials for manufacturing cosmetic and healthcare products, antimicrobial textiles, wound dressings, antitumor drug carriers, etc. due to their excellent antimicrobial properties. Accordingly, AgNPs have gained access into our daily life, and the inevitable human exposure to these nanoparticles has raised concerns about their potential hazards to the environment, health, and safety in recent years. From in vitro cell cultivation tests, AgNPs have been reported to be toxic to several human cell lines including human bronchial epithelial cells, human umbilical vein endothelial cells, red blood cells, human peripheral blood mononuclear cells, immortal human keratinocytes, liver cells, etc. AgNPs induce a dose-, size- and time-dependent cytotoxicity, particularly for those with sizes ≤10 nm. Furthermore, AgNPs can cross the brain blood barrier of mice through the circulation system on the basis of in vivo animal tests. AgNPs tend to accumulate in mice organs such as liver, spleen, kidney and brain following intravenous, intraperitoneal, and intratracheal routes of administration. In this respect, AgNPs are considered a double-edged sword that can eliminate microorganisms but induce cytotoxicity in mammalian cells. This article provides a state-of-the-art review on the synthesis of AgNPs, and their applications in antimicrobial textile fabrics, food packaging films, and wound dressings. Particular attention is paid to the bactericidal activity and cytotoxic effect in mammalian cells.
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Affiliation(s)
- Chengzhu Liao
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Yuchao Li
- Department of Materials Science and Engineering, Liaocheng University, Liaocheng 252000, China.
| | - Sie Chin Tjong
- Department of Physics, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China.
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569
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A Precautionary Approach to Guide the Use of Transition Metal-Based Nanotechnology to Prevent Orthopedic Infections. MATERIALS 2019; 12:ma12020314. [PMID: 30669523 PMCID: PMC6356474 DOI: 10.3390/ma12020314] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 01/15/2019] [Accepted: 01/18/2019] [Indexed: 12/11/2022]
Abstract
The increase of multidrug-resistant bacteria remains a global concern. Among the proposed strategies, the use of nanoparticles (NPs) alone or associated with orthopedic implants represents a promising solution. NPs are well-known for their antimicrobial effects, induced by their size, shape, charge, concentration and reactive oxygen species (ROS) generation. However, this non-specific cytotoxic potential is a powerful weapon effective against almost all microorganisms, but also against eukaryotic cells, raising concerns related to their safe use. Among the analyzed transition metals, silver is the most investigated element due to its antimicrobial properties per se or as NPs; however, its toxicity raises questions about its biosafety. Even though it has milder antimicrobial and cytotoxic activity, TiO2 needs to be exposed to UV light to be activated, thus limiting its use conjugated to orthopedic devices. By contrast, gold has a good balance between antimicrobial activity as an NP and cytocompatibility because of its inability to generate ROS. Nevertheless, although the toxicity and persistence of NPs within filter organs are not well verified, nowadays, several basic research on NP development and potential uses as antimicrobial weapons is reported, overemphasizing NPs potentialities, but without any existing potential of translation in clinics. This analysis cautions readers with respect to regulation in advancing the development and use of NPs. Hopefully, future works in vivo and clinical trials will support and regulate the use of nano-coatings to guarantee safer use of this promising approach against antibiotic-resistant microorganisms.
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570
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Teleanu DM, Chircov C, Grumezescu AM, Teleanu RI. Neurotoxicity of Nanomaterials: An Up-to-Date Overview. NANOMATERIALS 2019; 9:nano9010096. [PMID: 30642104 PMCID: PMC6359621 DOI: 10.3390/nano9010096] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 12/22/2018] [Accepted: 01/08/2019] [Indexed: 12/19/2022]
Abstract
The field of nanotechnology, through which nanomaterials are designed, characterized, produced, and applied, is rapidly emerging in various fields, including energy, electronics, food and agriculture, environmental science, cosmetics, and medicine. The most common biomedical applications of nanomaterials involve drug delivery, bioimaging, and gene and cancer therapy. Since they possess unique properties which are different than bulk materials, toxic effects and long-term impacts on organisms are not completely known. Therefore, the purpose of this review is to emphasize the main neurotoxic effects induced by nanoparticles, liposomes, dendrimers, carbon nanotubes, and quantum dots, as well as the key neurotoxicology assays to evaluate them.
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Affiliation(s)
- Daniel Mihai Teleanu
- Emergency University Hospital, Bucharest, Romania, "Carol Davila" University of Medicine and Pharmacy, Bucharest 050474, Romania.
| | - Cristina Chircov
- Faculty of Engineering in Foreign Languages, Politehnica University of Bucharest, București 060042, Romania.
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, Bucharest 060041, Romania.
| | - Alexandru Mihai Grumezescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, Bucharest 060041, Romania.
- ICUB-Research Institute of University of Bucharest, University of Bucharest, 36-46 M. Kogalniceanu Blvd., Bucharest 050107, Romania.
| | - Raluca Ioana Teleanu
- Emergency University Hospital, Bucharest, Romania, "Carol Davila" University of Medicine and Pharmacy, Bucharest 050474, Romania.
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571
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Sethuram L, Thomas J, Mukherjee A, Chandrasekaran N. Effects and formulation of silver nanoscaffolds on cytotoxicity dependent ion release kinetics towards enhanced excision wound healing patterns in Wistar albino rats. RSC Adv 2019; 9:35677-35694. [PMID: 35528070 PMCID: PMC9074428 DOI: 10.1039/c9ra06913e] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2019] [Accepted: 10/23/2019] [Indexed: 01/09/2023] Open
Abstract
Wound tissue regeneration and angiogenesis are dynamic processes that send physiological signals to the body. Thus, designing novel nanoscaffolds by understanding their surface modifications and toxicological response in a biological system with a potent anti-inflammatory response is a viable solution. In this respect, inspired by the surface chemistry, in the present work we focus on the chemical optimization of silver nanoscaffolds using surface cappings in order to understand their kinetic release behaviour in simulated wound fluids (SWF), to analyze their blood compatibility in human lymphocytes and erythrocytes and then embed them in a chitosan-agarose matrix (CAM) as a productive drug delivery system to evaluate in vivo excision wound tissue regeneration efficiency in Wistar rats. In this regard, polyvinyl alcohol capped silver nanocomposites (PVA-AgNPs) exhibit a dominant antibacterial efficacy with the sustained and controlled release of silver ions and percentage cell mortality and percentage hemolysis of only 10% and 16% compared with uncapped-AgNPs or silver bandaids (SBDs). Also, PVA-AgNP impregnated CAM (PVA-CAM) shows positive effects through their anti-inflammatory and angiogenic properties, with a nearly 95% healing effect within 9 days. The complete development of collagen and fibroblast constituents was also monitored in PVA-CAM by hematoxylin & eosin (H & E) and Masson trichrome (MT) staining. These results provide a clear insight into the development of a potent therapeutic formulation using CAM as a scaffold incorporated with surface functionalized PVA-AgNPs as a bioeffective and biocompatible polymer for the fabrication of efficacious silver wound dressing scaffolds in clinical practice. A sustained and controlled release of silver ions from AgNPs is driven by greater percentage of wound contraction with minimal cytotoxic behavioural rates and effective antibacterial activity.![]()
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Affiliation(s)
| | - John Thomas
- Centre for Nanobiotechnology
- VIT University
- Vellore
- India
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572
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Li B, Ma J, Wang D, Liu X, Li H, Zhou L, Liang C, Wang H. Self-adjusting antibacterial properties of Ag-incorporated nanotubes on micro-nanostructured Ti surfaces. Biomater Sci 2019; 7:4075-4087. [DOI: 10.1039/c9bm00862d] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The bactericidal activity of a silver loading platform in the “release” mode during the early phase and “contact” mode thereafter.
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Affiliation(s)
- Baoe Li
- School of Materials Science and Engineering
- Hebei University of Technology
- Tianjin 300130
- China
| | - Jianwei Ma
- School of Materials Science and Engineering
- Hebei University of Technology
- Tianjin 300130
- China
| | - Donghui Wang
- School of Materials Science and Engineering
- Hebei University of Technology
- Tianjin 300130
- China
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure
| | - Xuanyong Liu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure
- Shanghai Institute of Ceramics
- Chinese Academy of Sciences
- Shanghai 200050
- China
| | - Haipeng Li
- School of Materials Science and Engineering
- Hebei University of Technology
- Tianjin 300130
- China
| | - Linxi Zhou
- School of Materials Science and Engineering
- Hebei University of Technology
- Tianjin 300130
- China
| | - Chunyong Liang
- School of Materials Science and Engineering
- Hebei University of Technology
- Tianjin 300130
- China
| | - Hongshui Wang
- School of Materials Science and Engineering
- Hebei University of Technology
- Tianjin 300130
- China
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573
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Barszczewska-Rybarek I, Chladek G. Studies on the Curing Efficiency and Mechanical Properties of Bis-GMA and TEGDMA Nanocomposites Containing Silver Nanoparticles. Int J Mol Sci 2018; 19:ijms19123937. [PMID: 30544584 PMCID: PMC6320904 DOI: 10.3390/ijms19123937] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 11/26/2018] [Accepted: 12/05/2018] [Indexed: 11/16/2022] Open
Abstract
Bioactive dimethacrylate composites filled with silver nanoparticles (AgNP) might be used in medical applications, such as dental restorations and bone cements. The composition of bisphenol A glycerolate dimethacrylate (Bis-GMA) and triethylene glycol dimethacrylate (TEGDMA) mixed in a 60/40 wt% ratio was filled from 25 to 5000 ppm of AgNP. An exponential increase in resin viscosity was observed with an increase in AgNP concentration. Curing was performed by way of photopolymerization, room temperature polymerization, and thermal polymerization. The results showed that the polymerization mode determines the degree of conversion (DC), which governs the ultimate mechanical properties of nanocomposites. Thermal polymerization resulted in a higher DC than photo- and room temperature polymerizations. The DC always decreased as AgNP content increased. Flexural strength, flexural modulus, hardness, and impact strength initially increased, as AgNP concentration increased, and then decreased at higher AgNP loadings. This turning point usually occurred when the DC dropped below 65% and moved toward higher AgNP concentrations, according to the following order of polymerization methods: photopolymerization < room temperature polymerization < thermal polymerization. Water sorption (WS) was also determined. Nanocomposites revealed an average decrease of 16% in WS with respect to the neat polymer. AgNP concentration did not significantly affect WS.
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Affiliation(s)
- Izabela Barszczewska-Rybarek
- Department of Physical Chemistry and Technology of Polymers, Silesian University of Technology, 44-100 Gliwice, Poland.
| | - Grzegorz Chladek
- Institute of Engineering Materials and Biomaterials, Silesian University of Technology, 44-100 Gliwice, Poland.
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574
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Singh P, Garg A, Pandit S, Mokkapati VRSS, Mijakovic I. Antimicrobial Effects of Biogenic Nanoparticles. NANOMATERIALS (BASEL, SWITZERLAND) 2018; 8:E1009. [PMID: 30563095 PMCID: PMC6315689 DOI: 10.3390/nano8121009] [Citation(s) in RCA: 92] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 12/03/2018] [Accepted: 12/04/2018] [Indexed: 12/23/2022]
Abstract
Infectious diseases pose one of the greatest health challenges in the medical world. Though numerous antimicrobial drugs are commercially available, they often lack effectiveness against recently developed multidrug resistant (MDR) microorganisms. This results in high antibiotic dose administration and a need to develop new antibiotics, which in turn requires time, money, and labor investments. Recently, biogenic metallic nanoparticles have proven their effectiveness against MDR microorganisms, individually and in synergy with the current/conventional antibiotics. Importantly, biogenic nanoparticles are easy to produce, facile, biocompatible, and environmentally friendly in nature. In addition, biogenic nanoparticles are surrounded by capping layers, which provide them with biocompatibility and long-term stability. Moreover, these capping layers provide an active surface for interaction with biological components, facilitated by free active surface functional groups. These groups are available for modification, such as conjugation with antimicrobial drugs, genes, and peptides, in order to enhance their efficacy and delivery. This review summarizes the conventional antibiotic treatments and highlights the benefits of using nanoparticles in combating infectious diseases.
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Affiliation(s)
- Priyanka Singh
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark.
| | - Abhroop Garg
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark.
| | - Santosh Pandit
- Systems and Synthetic Biology Division, Department of Biology and Biological Engineering, Chalmers University of Technology, 41296 Chalmers, Sweden.
| | - V R S S Mokkapati
- Systems and Synthetic Biology Division, Department of Biology and Biological Engineering, Chalmers University of Technology, 41296 Chalmers, Sweden.
| | - Ivan Mijakovic
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark.
- Systems and Synthetic Biology Division, Department of Biology and Biological Engineering, Chalmers University of Technology, 41296 Chalmers, Sweden.
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575
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Teleanu DM, Chircov C, Grumezescu AM, Volceanov A, Teleanu RI. Impact of Nanoparticles on Brain Health: An Up to Date Overview. J Clin Med 2018; 7:E490. [PMID: 30486404 PMCID: PMC6306759 DOI: 10.3390/jcm7120490] [Citation(s) in RCA: 90] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 11/22/2018] [Accepted: 11/23/2018] [Indexed: 12/12/2022] Open
Abstract
Nanoparticles are zero-dimensional nanomaterials and, based on their nature, they can be categorized into organic, inorganic, and composites nanoparticles. Due to their unique physical and chemical properties, nanoparticles are extensively used in a variety of fields, including medicine, pharmaceutics, and food industry. Although they have the potential to improve the diagnosis and treatment of brain diseases, it is fundamentally important to develop standardized toxicological studies, which can prevent the induction of neurotoxic effects. The focus of this review is to emphasize both the beneficial and negative effects of nanoparticles on brain health.
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Affiliation(s)
- Daniel Mihai Teleanu
- Emergency University Hospital, Bucharest, Romania, "Carol Davila" University of Medicine and Pharmacy, 050474 Bucharest, Romania.
| | - Cristina Chircov
- Faculty of Engineering in Foreign Languages, 060042 Bucharest, Romania.
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, 011061 Bucharest, Romania.
| | - Alexandru Mihai Grumezescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, 011061 Bucharest, Romania.
- ICUB-Research Institute of University of Bucharest, University of Bucharest, 36-46 M. Kogalniceanu Blvd., 050107 Bucharest, Romania.
| | - Adrian Volceanov
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, 011061 Bucharest, Romania.
| | - Raluca Ioana Teleanu
- Emergency University Hospital, Bucharest, Romania, "Carol Davila" University of Medicine and Pharmacy, 050474 Bucharest, Romania.
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576
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Li J, Cai C, Li J, Li J, Li J, Sun T, Wang L, Wu H, Yu G. Chitosan-Based Nanomaterials for Drug Delivery. Molecules 2018; 23:E2661. [PMID: 30332830 PMCID: PMC6222903 DOI: 10.3390/molecules23102661] [Citation(s) in RCA: 198] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2018] [Revised: 10/08/2018] [Accepted: 10/11/2018] [Indexed: 12/15/2022] Open
Abstract
This review discusses different forms of nanomaterials generated from chitosan and its derivatives for controlled drug delivery. Nanomaterials are drug carriers with multiple features, including target delivery triggered by environmental, pH, thermal responses, enhanced biocompatibility, and the ability to cross the blood-brain barrier. Chitosan (CS), a natural polysaccharide largely obtained from marine crustaceans, is a promising drug delivery vector for therapeutics and diagnostics, owing to its biocompatibility, biodegradability, low toxicity, and structural variability. This review describes various approaches to obtain novel CS derivatives, including their distinct advantages, as well as different forms of nanomaterials recently developed from CS. The advanced applications of CS-based nanomaterials are presented here in terms of their specific functions. Recent studies have proven that nanotechnology combined with CS and its derivatives could potentially circumvent obstacles in the transport of drugs thereby improving the drug efficacy. CS-based nanomaterials have been shown to be highly effective in targeted drug therapy.
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Affiliation(s)
- Jianghua Li
- Key Laboratory of Marine Drugs, Ministry of Education & Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China.
| | - Chao Cai
- Key Laboratory of Marine Drugs, Ministry of Education & Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China.
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China.
| | - Jiarui Li
- Key Laboratory of Marine Drugs, Ministry of Education & Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China.
| | - Jun Li
- Key Laboratory of Marine Drugs, Ministry of Education & Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China.
| | - Jia Li
- Key Laboratory of Marine Drugs, Ministry of Education & Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China.
| | - Tiantian Sun
- Key Laboratory of Marine Drugs, Ministry of Education & Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China.
| | - Lihao Wang
- Key Laboratory of Marine Drugs, Ministry of Education & Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China.
| | - Haotian Wu
- Key Laboratory of Marine Drugs, Ministry of Education & Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China.
| | - Guangli Yu
- Key Laboratory of Marine Drugs, Ministry of Education & Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China.
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China.
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