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Harrison Z, Montgomery EC, Bush JR, Gupta N, Bumgardner JD, Fujiwara T, Baker DL, Jennings JA. Cis-2-Decenoic Acid and Bupivacaine Delivered from Electrospun Chitosan Membranes Increase Cytokine Production in Dermal and Inflammatory Cell Lines. Pharmaceutics 2023; 15:2476. [PMID: 37896236 PMCID: PMC10610339 DOI: 10.3390/pharmaceutics15102476] [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: 08/01/2023] [Revised: 10/01/2023] [Accepted: 10/11/2023] [Indexed: 10/29/2023] Open
Abstract
Wound dressings serve to protect tissue from contamination, alleviate pain, and facilitate wound healing. The biopolymer chitosan is an exemplary choice in wound dressing material as it is biocompatible and has intrinsic antibacterial properties. Infection can be further prevented by loading dressings with cis-2-decenoic acid (C2DA), a non-antibiotic antimicrobial agent, as well as bupivacaine (BUP), a local anesthetic that also has antibacterial capabilities. This study utilized a series of assays to elucidate the responses of dermal cells to decanoic anhydride-modified electrospun chitosan membranes (DA-ESCMs) loaded with C2DA and/or BUP. Cytocompatibility studies determined the toxic loading ranges for C2DA, BUP, and combinations, revealing that higher concentrations (0.3 mg of C2DA and 1.0 mg of BUP) significantly decreased the viability of fibroblasts and keratinocytes. These high concentrations also inhibited collagen production by fibroblasts, with lower loading concentrations promoting collagen deposition. These findings provide insight into preliminary cellular responses to DA-ESCMs and can guide future research on their clinical application as wound dressings.
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Affiliation(s)
- Zoe Harrison
- Department of Biomedical Engineering, University of Memphis, Memphis, TN 38152, USA; (Z.H.); (E.C.M.); (J.R.B.); (N.G.); (J.D.B.)
| | - Emily C. Montgomery
- Department of Biomedical Engineering, University of Memphis, Memphis, TN 38152, USA; (Z.H.); (E.C.M.); (J.R.B.); (N.G.); (J.D.B.)
| | - Joshua R. Bush
- Department of Biomedical Engineering, University of Memphis, Memphis, TN 38152, USA; (Z.H.); (E.C.M.); (J.R.B.); (N.G.); (J.D.B.)
| | - Nidhi Gupta
- Department of Biomedical Engineering, University of Memphis, Memphis, TN 38152, USA; (Z.H.); (E.C.M.); (J.R.B.); (N.G.); (J.D.B.)
| | - Joel D. Bumgardner
- Department of Biomedical Engineering, University of Memphis, Memphis, TN 38152, USA; (Z.H.); (E.C.M.); (J.R.B.); (N.G.); (J.D.B.)
| | - Tomoko Fujiwara
- Department of Chemistry, University of Memphis, Memphis, TN 38152, USA; (T.F.); (D.L.B.)
| | - Daniel L. Baker
- Department of Chemistry, University of Memphis, Memphis, TN 38152, USA; (T.F.); (D.L.B.)
| | - Jessica Amber Jennings
- Department of Biomedical Engineering, University of Memphis, Memphis, TN 38152, USA; (Z.H.); (E.C.M.); (J.R.B.); (N.G.); (J.D.B.)
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2
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Zielińska A, da Ana R, Fonseca J, Szalata M, Wielgus K, Fathi F, Oliveira MBPP, Staszewski R, Karczewski J, Souto EB. Phytocannabinoids: Chromatographic Screening of Cannabinoids and Loading into Lipid Nanoparticles. Molecules 2023; 28:molecules28062875. [PMID: 36985847 PMCID: PMC10058297 DOI: 10.3390/molecules28062875] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/13/2023] [Accepted: 03/20/2023] [Indexed: 03/30/2023] Open
Abstract
Solid Lipid Nanoparticles (SLN) and Nanostructured Lipid Carriers (NLC) are receiving increasing interest as an approach to encapsulate natural extracts to increase the physicochemical stability of bioactives. Cannabis extract-derived cannabidiol (CBD) has potent therapeutic properties, including anti-inflammatory, antioxidant, and neuroprotective properties. In this work, physicochemical characterization was carried out after producing Compritol-based nanoparticles (cSLN or cNLC) loaded with CBD. Then, the determination of the encapsulation efficiency (EE), loading capacity (LC), particle size (Z-Ave), polydispersity index (PDI), and zeta potential were performed. Additionally, the viscoelastic profiles and differential scanning calorimetry (DSC) patterns were recorded. As a result, CBD-loaded SLN showed a mean particle size of 217.2 ± 6.5 nm, PDI of 0.273 ± 0.023, and EE of about 74%, while CBD-loaded NLC showed Z-Ave of 158.3 ± 6.6 nm, PDI of 0.325 ± 0.016, and EE of about 70%. The rheological analysis showed that the loss modulus for both lipid nanoparticle formulations was higher than the storage modulus over the applied frequency range of 10 Hz, demonstrating that they are more elastic than viscous. The crystallinity profiles of both CBD-cSLN (90.41%) and CBD-cNLC (40.18%) were determined. It may justify the obtained encapsulation parameters while corroborating the liquid-like character demonstrated in the rheological analysis. Scanning electron microscopy (SEM) study confirmed the morphology and shape of the developed nanoparticles. The work has proven that the solid nature and morphology of cSLN/cNLC strengthen these particles' potential to modify the CBD delivery profile for several biomedical applications.
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Affiliation(s)
- Aleksandra Zielińska
- Institute of Human Genetics, Polish Academy of Sciences, Strzeszyńska 32, 60-479 Poznan, Poland
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - Raquel da Ana
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - Joel Fonseca
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - Milena Szalata
- Department of Biotechnology, Institute of Natural Fibres and Medicinal Plants, National Research Institute, Wojska Polskiego 71B, 60-630 Poznan, Poland
| | - Karolina Wielgus
- Department of Pediatric Gastroenterology and Metabolic Diseases, Poznan University of Medical Sciences, Szpitalna 27/33, 60-572 Poznan, Poland
| | - Faezeh Fathi
- REQUIMTE/LAQV, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira No. 280, 4050-313 Porto, Portugal
| | - M Beatriz P P Oliveira
- REQUIMTE/LAQV, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira No. 280, 4050-313 Porto, Portugal
| | - Rafał Staszewski
- Department of Hypertension Angiology and Internal Medicine, Poznan University of Medical Sciences, 61-701 Poznan, Poland
| | - Jacek Karczewski
- Department of Environmental Medicine, Poznan University of Medical Sciences, 61-701 Poznan, Poland
- Department of Gastroenterology, Dietetics and Internal Diseases, H. Swiecicki University Hospital, Poznan University of Medical Sciences, 60-355 Poznan, Poland
| | - Eliana B Souto
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
- REQUIMTE/UCIBIO, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
- Associate Laboratory i4HB-Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
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Synergistic Wound Healing by Novel Ag@ZIF-8 Nanostructures. Int J Pharm 2022; 629:122339. [DOI: 10.1016/j.ijpharm.2022.122339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 10/10/2022] [Accepted: 10/22/2022] [Indexed: 11/06/2022]
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4
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Shende S, Rajput VD, Gade A, Minkina T, Fedorov Y, Sushkova S, Mandzhieva S, Burachevskaya M, Boldyreva V. Metal-based Green Synthesized Nanoparticles: Boon for Sustainable Agriculture and Food Security. IEEE Trans Nanobioscience 2021; 21:44-54. [PMID: 34133281 DOI: 10.1109/tnb.2021.3089773] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The applications of metal-based nanoparticles (MNPs) in the sustainable development of agriculture and food security have received greater attention in recent years in the science community. Different biological resources have been employed to replace harmful chemicals to reduce metal salts and stabilize MNPs, i.e., green methods for the synthesis have paid attention to the nanobiotechnological advances. This review mainly focused on the applications of green synthesized MNPs for the agriculture sector and food security. Because of the novel domains, the green synthesized MNPs could be helpful in the different areas of agriculture like plant growth promotion, plant disease, and insect/pest management, fungicidal agent, in food security for food packaging, for increasing the shelf life and protection from spoilage, and other purposes. In the present review, the global scenario of the recent studies on the applications of green synthesized MNPs, particularly in sustainable agriculture and food security, is comprehensively discussed.
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Sethuram L, Thomas J, Mukherjee A, Chandrasekaran N. Eugenol micro-emulsion reinforced with silver nanocomposite electrospun mats for wound dressing strategies. MATERIALS ADVANCES 2021; 2:2971-2988. [DOI: 10.1039/d1ma00103e] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2023]
Abstract
The fabricated eugenol microemulsion based silver nanoparticle nanofibers with effective antibacterial efficacy provide a suitable wound dressing strategy to develop an ideal skin tissue scaffold for the treatment of cut wounds in clinical practice.
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Affiliation(s)
| | - John Thomas
- Centre for Nanobiotechnology
- VIT University
- Vellore
- India
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Kanagasubbulakshmi S, Lakshmi K, Kadirvelu K. Carbon quantum dots-embedded electrospun antimicrobial and fluorescent scaffold for reepithelialization in albino wistar rats. J Biomed Mater Res A 2020; 109:637-648. [PMID: 32615012 DOI: 10.1002/jbm.a.37048] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 01/25/2020] [Accepted: 02/04/2020] [Indexed: 11/10/2022]
Abstract
A prosthetic scaffold development using fluorescent nanofiber is reported for an enhanced reepithelialization in wistar albino rats. In this study, a novel approach was followed to construct the biocompatible fluorescent nanofiber that will be helpful to monitor the tissue regeneration process. Here, a multifunctional carbon quantum dots (CQDs)-embedded electrospun polyacrylonitrile (PAN) nanofiber was fabricated and characterized using standard laboratory techniques. The biodegradation ability was assessed by simulated body fluid thereby analyzing porosity and water absorption capacity of the material. The fluorescent scaffold was tested for cytotoxicity and antimicrobial activity using bacterial and fibroblast cells and fluorescent stability was analyzed by bioimaging of animal and bacterial cells. Tissue regeneration capability of the developed scaffold was evaluated using wistar albino rats. Unlike biomicking scaffolds, the CQDs-embedded PAN-based substrate has given dual support by enhancing reepithelialization without growth factors and acted as an antimicrobial agent to provide contamination free tissue regeneration. Scaffolds were examined by using histostaining techniques and scanning electron microscopy to observe the reepithelialization in the regenerated tissues. The novel approach for developing infection free soft tissue regeneration was found to be phenomenal in scaffold development.
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Affiliation(s)
| | | | - Krishna Kadirvelu
- DRDO-BU Center for Life Sciences, Bharathiar University, Coimbatore, India
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7
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Jatoi AW, Kim IS, Ogasawara H, Ni QQ. Characterizations and application of CA/ZnO/AgNP composite nanofibers for sustained antibacterial properties. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 105:110077. [PMID: 31546450 DOI: 10.1016/j.msec.2019.110077] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 08/08/2019] [Accepted: 08/12/2019] [Indexed: 11/30/2022]
Abstract
Although silver based nanofibers possess excellent bactericidal and bacteriostatic characteristics. However, excess release/contact with silver may induce harmful side-effects including carcinoma, argyria, argyrosis and allergies. Similarly, silver depletion may limit prolonged antibacterial activities as well. Thus present research proposes electrospun CA/ZnO/AgNPs composite nanofibers for biologically safer and sustained antibacterial applications. The ZnO/AgNPs were synthesized using dopamine hydrochloride (Dopa) as reducing agent to immobilize AgNPs on ZnO nanoparticles. A simple solution-mixing procedure effectively generated AgNPs on ZnO nanoparticles. Strong adhesive characteristics of Dopa initiate adsorption of silver ions on ZnO nanoparticle surfaces and its metal ion reducing properties generate AgNPs. Additionally, the Dopa mediation generates strongly adhered AgNPs. The ZnO/AgNPs were used to fabricate CA/ZnO/AgNPs nanofibers. Characterization techniques, XRD, XPS, TEM, FTIR and SEM confirmed synthesis of nanocomposites. Crystallite sizes of ZnO and AgNPs calculated by Debye-Scherrer equation were 17.85 nm and 11.68 nm respectively. Antibacterial assays confirmed CA/ZnO/AgNP's effectiveness in growth inhibition of E. coli and S. aureus strains on agar plate and in liquid medium. The nanofiber composites demonstrated 100% bactericidal properties against both the test strains. Bacterial growth inhibition in LB medium for 108 h indicated suitability of CA/ZnO/AgNPs composite nanofibers in sustained antibacterial applications such as antibacterial wound dressings and other applications demanding sustained antimicrobial properties.
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Affiliation(s)
- Abdul Wahab Jatoi
- Bioscience and Textile Technology Department, Shinshu University, Ueda, Nagano, Japan; Department of Textile Engineering, Mehran University of Engineering and Technology, Jamshoro 76062, Pakistan.
| | - Ick Soo Kim
- Nano Fusion Technology Research Group, Division of Frontier Fibers, Institute for Fiber Engineering (IFES), Interdisciplinary Cluster for Cutting Edge Research (ICCER), Shinshu University, Tokida 3-15-1, Ueda, Nagano Prefecture 386-8567, Japan.
| | - Hiroshi Ogasawara
- Division of Gene Research, Center of Research for Supports Advanced Science, Department of Life Sciences, Shinshu University, Tokida, 3-15-1, Ueda, Nagano 386-8567, Japan
| | - Qing-Qing Ni
- Department of Mechanical Engineering and Robotics, Shinshu University, Tokida 3-15-1, Ueda, Nagano Prefecture 386-8567, Japan.
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8
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Aktürk A, Erol Taygun M, Karbancıoğlu Güler F, Goller G, Küçükbayrak S. Fabrication of antibacterial polyvinylalcohol nanocomposite mats with soluble starch coated silver nanoparticles. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2018.11.034] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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9
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Concentration- and Time-Dependent Cytotoxicity of Silver Nanoparticles on Normal Human Skin Fibroblast Cell Line. IRANIAN RED CRESCENT MEDICAL JOURNAL 2018. [DOI: 10.5812/ircmj.79183] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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10
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Electrospun Nanomaterials Implementing Antibacterial Inorganic Nanophases. APPLIED SCIENCES-BASEL 2018. [DOI: 10.3390/app8091643] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Electrospinning is a versatile, simple, and low cost process for the controlled production of fibers. In recent years, its application to the development of multifunctional materials has encountered increasing success. In this paper, we briefly overview the general aspects of electrospinning and then we focus on the implementation of inorganic nanoantimicrobials, e.g., nanosized antimicrobial agents in electrospun fibers. The most relevant characteristics sought in nanoantimicrobials supported on (or dispersed into) polymeric materials are concisely discussed as well. The interesting literature issued in the last decade in the field of antimicrobial electrospun nanomaterials is critically described. A classification of the most relevant studies as a function of the different approaches chosen for incorporating nanoantimicrobials in the final material is also provided.
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11
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Kim MH, Park H, Nam HC, Park SR, Jung JY, Park WH. Injectable methylcellulose hydrogel containing silver oxide nanoparticles for burn wound healing. Carbohydr Polym 2017; 181:579-586. [PMID: 29254010 DOI: 10.1016/j.carbpol.2017.11.109] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 11/28/2017] [Accepted: 11/28/2017] [Indexed: 11/19/2022]
Abstract
A thermo-sensitive methylcellulose (MC) hydrogel containing silver oxide nanoparticles (NPs) was prepared via one-pot synthesis in which a silver acetate precursor salt (CH3COOAg) induces a salt-out effect in the MC solution. The silver oxide NPs were synthesized in situ from Ag+ ions during the MC hydrogelation, and the residual CH3COO- ions decreased the gelation temperature of the MC solution through the salt-out effect. The gelation behavior of the MC solution varied according to the CH3COOAg content and was monitored. Also, the formation and structure of the silver oxide NPs in the MC hydrogel was confirmed. From the results, silver oxide NPs was successfully incorporated in MC hydrogels, simultaneously, acetate ion which was counter ion of Ag was affected gelation behavior of Ag. Finally, the antimicrobial activity and wound healing effect was examined using the shaking flask method and burn wound test, respectively. The MC hydrogel with silver oxide NPs showed excellent antimicrobial activity and burn wound healing. Therefore, this thermo-responsive MC hydrogel has great potential as an injectable hydrogel for wound regeneration.
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Affiliation(s)
- Min Hee Kim
- Department of Advanced Organic Materials and Textile Engineering System, Chungnam National University, Daejeon 34134, South Korea
| | - Hanna Park
- Department of Advanced Organic Materials and Textile Engineering System, Chungnam National University, Daejeon 34134, South Korea
| | - Hyung Chan Nam
- Department of Advanced Organic Materials and Textile Engineering System, Chungnam National University, Daejeon 34134, South Korea
| | - Se Ra Park
- Department of Veterinary Medicine, Chungnam National University, Daejeon 43134, South Korea
| | - Ju-Young Jung
- Department of Veterinary Medicine, Chungnam National University, Daejeon 43134, South Korea.
| | - Won Ho Park
- Department of Advanced Organic Materials and Textile Engineering System, Chungnam National University, Daejeon 34134, South Korea.
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12
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García-Alvarez R, Izquierdo-Barba I, Vallet-Regí M. 3D scaffold with effective multidrug sequential release against bacteria biofilm. Acta Biomater 2017; 49:113-126. [PMID: 27845276 DOI: 10.1016/j.actbio.2016.11.028] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Revised: 10/26/2016] [Accepted: 11/10/2016] [Indexed: 11/17/2022]
Abstract
Bone infection is a feared complication following surgery or trauma that remains as an extremely difficult disease to deal with. So far, the outcome of therapy could be improved with the design of 3D implants, which combine the merits of osseous regeneration and local multidrug therapy so as to avoid bacterial growth, drug resistance and the feared side effects. Herein, hierarchical 3D multidrug scaffolds based on nanocomposite bioceramic and polyvinyl alcohol (PVA) prepared by rapid prototyping with an external coating of gelatin-glutaraldehyde (Gel-Glu) have been fabricated. These 3D scaffolds contain three antimicrobial agents (rifampin, levofloxacin and vancomycin), which have been localized in different compartments of the scaffold to obtain different release kinetics and more effective combined therapy. Levofloxacin was loaded into the mesopores of nanocomposite bioceramic part, vancomycin was localized into PVA biopolymer part and rifampin was loaded in the external coating of Gel-Glu. The obtained results show an early and fast release of rifampin followed by sustained and prolonged release of vancomycin and levofloxacin, respectively, which are mainly governed by the progressive in vitro degradability rate of these scaffolds. This combined therapy is able to destroy Gram-positive and Gram-negative bacteria biofilms as well as inhibit the bacteria growth. In addition, these multifunctional scaffolds exhibit excellent bioactivity as well as good biocompatibility with complete cell colonization of preosteoblast in the entire surface, ensuring good bone regeneration. These findings suggest that these hierarchical 3D multidrug scaffolds are promising candidates as platforms for local bone infection therapy. STATEMENT OF SIGNIFICANCE The present study is focused in finding an adequate therapeutic solution for the treatment of bone infection based on 3D multifunctional scaffolds, which combines the merits of osseous regeneration and local multidrug delivery. These 3D multidrug scaffolds, containing rifampin, levofloxacin and vancomycin, localized in different compartments to achieve different release kinetics. These 3D multidrug scaffolds displays an early and fast release of rifampin followed by sustained and prolonged release of vancomycin and levofloxacin, which are able to destroy Staphylococcus and Escherichia biofilms as well as inhibit bacteria growth in very short time periods. This new combined therapy approach involving the sequential delivery of antibiofilms with antibiotics constitutes an excellent and promising alternative for bone infection treatment.
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Affiliation(s)
- Rafaela García-Alvarez
- Dpto. Química Inorgánica y Bioinorgánica, Universidad Complutense de Madrid, Instituto de Investigación Sanitaria Hospital 12 de Octubre i+12, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain
| | - Isabel Izquierdo-Barba
- Dpto. Química Inorgánica y Bioinorgánica, Universidad Complutense de Madrid, Instituto de Investigación Sanitaria Hospital 12 de Octubre i+12, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain; CIBER de Bioingeniería, Biomateriales y Nanomedicina, CIBER-BBN, Madrid, Spain.
| | - María Vallet-Regí
- Dpto. Química Inorgánica y Bioinorgánica, Universidad Complutense de Madrid, Instituto de Investigación Sanitaria Hospital 12 de Octubre i+12, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain; CIBER de Bioingeniería, Biomateriales y Nanomedicina, CIBER-BBN, Madrid, Spain.
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Yuan CG, Guo S, Song J, Huo C, Li Y, Gui B, Zhang X. One-step fabrication and characterization of a poly(vinyl alcohol)/silver hybrid nanofiber mat by electrospinning for multifunctional applications. RSC Adv 2017. [DOI: 10.1039/c6ra26770j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Preparation and application of a poly(vinyl alcohol)/silver hybrid nanofiber mat by electrospinning.
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Affiliation(s)
- Chun-Gang Yuan
- School of Environmental Science & Engineering
- North China Electric Power University
- Baoding 071000
- China
| | - Shiwei Guo
- School of Environmental Science & Engineering
- North China Electric Power University
- Baoding 071000
- China
| | - Jian Song
- School of Environmental Science & Engineering
- North China Electric Power University
- Baoding 071000
- China
| | - Can Huo
- School of Environmental Science & Engineering
- North China Electric Power University
- Baoding 071000
- China
| | - Yukai Li
- School of Environmental Science & Engineering
- North China Electric Power University
- Baoding 071000
- China
| | - Bing Gui
- School of Environmental Science & Engineering
- North China Electric Power University
- Baoding 071000
- China
| | - Xianmei Zhang
- School of Environmental Science & Engineering
- North China Electric Power University
- Baoding 071000
- China
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14
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Silver Nanoparticle-Mediated Cellular Responses in Various Cell Lines: An in Vitro Model. Int J Mol Sci 2016; 17:ijms17101603. [PMID: 27669221 PMCID: PMC5085636 DOI: 10.3390/ijms17101603] [Citation(s) in RCA: 157] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Revised: 09/08/2016] [Accepted: 09/15/2016] [Indexed: 01/09/2023] Open
Abstract
Silver nanoparticles (AgNPs) have attracted increased interest and are currently used in various industries including medicine, cosmetics, textiles, electronics, and pharmaceuticals, owing to their unique physical and chemical properties, particularly as antimicrobial and anticancer agents. Recently, several studies have reported both beneficial and toxic effects of AgNPs on various prokaryotic and eukaryotic systems. To develop nanoparticles for mediated therapy, several laboratories have used a variety of cell lines under in vitro conditions to evaluate the properties, mode of action, differential responses, and mechanisms of action of AgNPs. In vitro models are simple, cost-effective, rapid, and can be used to easily assess efficacy and performance. The cytotoxicity, genotoxicity, and biocompatibility of AgNPs depend on many factors such as size, shape, surface charge, surface coating, solubility, concentration, surface functionalization, distribution of particles, mode of entry, mode of action, growth media, exposure time, and cell type. Cellular responses to AgNPs are different in each cell type and depend on the physical and chemical nature of AgNPs. This review evaluates significant contributions to the literature on biological applications of AgNPs. It begins with an introduction to AgNPs, with particular attention to their overall impact on cellular effects. The main objective of this review is to elucidate the reasons for different cell types exhibiting differential responses to nanoparticles even when they possess similar size, shape, and other parameters. Firstly, we discuss the cellular effects of AgNPs on a variety of cell lines; Secondly, we discuss the mechanisms of action of AgNPs in various cellular systems, and try to elucidate how AgNPs interact with different mammalian cell lines and produce significant effects; Finally, we discuss the cellular activation of various signaling molecules in response to AgNPs, and conclude with future perspectives on research into AgNPs.
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15
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Kim JH, Unnithan AR, Kim HJ, Tiwari AP, Park CH, Kim CS. Electrospun badger (Meles meles) oil/Ag nanoparticle based anti-bacterial mats for biomedical applications. J IND ENG CHEM 2015. [DOI: 10.1016/j.jiec.2015.05.030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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16
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Meng Y. A Sustainable Approach to Fabricating Ag Nanoparticles/PVA Hybrid Nanofiber and Its Catalytic Activity. NANOMATERIALS 2015; 5:1124-1135. [PMID: 28347055 PMCID: PMC5312901 DOI: 10.3390/nano5021124] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Revised: 06/16/2015] [Accepted: 06/18/2015] [Indexed: 12/01/2022]
Abstract
Ag nanoparticles were synthesized by using Ficus altissimaBlume leaf extract as a reducing agent at room temperature. The resulting Ag nanoparticles/PVA mixture was employed to create Ag nanoparticles/PVA (polyvinyl alcohol) hybrid nanofibers via an electrospinning technique. The obtained nanofibers were confirmed by means of UV-Vis spectroscopy, The X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM), and then tested to catalyze KBH4 reduction of methylene blue (MB). The catalytic results demonstrate that the MB can be reduced completely within 15 min. In addition, the Ag nanoparticles/PVA hybrid nanofibers show reusability for three cycles with no obvious losses in degradation ratio of the MB.
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Affiliation(s)
- Yongde Meng
- Department of Chemistry, Hanshan Normal University, Chaozhou 521041, China.
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17
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Zhao S, Zhang J, Zhu M, Zhang Y, Liu Z, Tao C, Zhu Y, Zhang C. Three-dimensional printed strontium-containing mesoporous bioactive glass scaffolds for repairing rat critical-sized calvarial defects. Acta Biomater 2015; 12:270-280. [PMID: 25449915 DOI: 10.1016/j.actbio.2014.10.015] [Citation(s) in RCA: 101] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Revised: 09/09/2014] [Accepted: 10/15/2014] [Indexed: 01/17/2023]
Abstract
The development of a new generation of biomaterials with high osteogenic ability for fast osseointegration with host bone is being intensively investigated. In this study, we have fabricated three-dimensional (3-D) strontium-containing mesoporous bioactive glass (Sr-MBG) scaffolds by a 3-D printing technique. Sr-MBG scaffolds showed uniform interconnected macropores (∼400μm), high porosity (∼70%) and enhanced compressive strength (8.67±1.74MPa). Using MBG scaffolds as a control, the biological properties of Sr-MBG scaffolds were evaluated by apatite-forming ability, adhesion, proliferation, alkaline phosphatase activity and osteogenic gene expression of osteoblast-like cells MC3T3-E1. Furthermore, Sr-MBG scaffolds were used to repair critical-sized rat calvarial defects. The results showed that Sr-MBG scaffolds possessed good apatite-forming ability and stimulated MC3T3-E1 cell proliferation and differentiation. Importantly, the in vivo results revealed that Sr-MBG scaffolds had good osteogenic capability and stimulated new blood vessel formation in critical-sized rat calvarial defects within 8 weeks. Therefore, 3-D printed Sr-MBG scaffolds with favorable pore structure and high osteogenic ability have more potential applications in bone regeneration.
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Jeong L, Kim MH, Jung JY, Min BM, Park WH. Effect of silk fibroin nanofibers containing silver sulfadiazine on wound healing. Int J Nanomedicine 2014; 9:5277-87. [PMID: 25484581 PMCID: PMC4238896 DOI: 10.2147/ijn.s71295] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND One of the promising applications of silk fibroin (SF) in biomedical engineering is its use as a scaffolding material for skin regeneration. The purpose of this study was to determine the wound healing effect of SF nanofibrous matrices containing silver sulfadiazine (SSD) wound dressings. METHODS An SF nanofibrous matrix containing SSD was prepared by electrospinning. The cell attachment and spreading of normal human epidermal keratinocytes (NHEK) and normal human epidermal fibroblasts (NHEF) to SF nanofibers containing three different concentrations of SSD contents (0.1, 0.5, and 1.0 wt%) were determined. In addition, a rat wound model was used in this study to determine the wound healing effect of SF nanofibers containing SSD compared with that of Acticoat™, a commercially available wound dressing. RESULTS The number of NHEK and NHEF attached to SF nanofibers containing SSD decreased when the concentration of SSD increased. The number of attached NHEF cells was lower than that of attached NHEK cells. The SF matrix with 1.0 wt% SSD produced faster wound healing than Acticoat, although 1.0 wt% SSD inhibited the attachment of epidermal cells to SF nanofibers in vitro. CONCLUSION The cytotoxic effects of SF nanofibers with SSD should be considered in the development of silver-release dressings for wound healing through its antimicrobial activity. It is challenging to design wound dressings that maximize antimicrobial activity and minimize cellular toxicity.
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Affiliation(s)
- Lim Jeong
- Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University, Daejeon, Seoul, South Korea
| | - Min Hee Kim
- Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University, Daejeon, Seoul, South Korea
| | - Ju-Young Jung
- College of Veterinary Medicine, Chungnam National University, Daejeon, Seoul, South Korea
| | - Byung Moo Min
- Department of Oral Biochemistry, School of Dentistry, Seoul National University, Seoul, South Korea
| | - Won Ho Park
- Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University, Daejeon, Seoul, South Korea
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Manjumeena R, Elakkiya T, Duraibabu D, Feroze Ahamed A, Kalaichelvan PT, Venkatesan R. ‘Green’ biocompatible organic–inorganic hybrid electrospun nanofibers for potential biomedical applications. J Biomater Appl 2014; 29:1039-55. [DOI: 10.1177/0885328214550011] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Gold nanoparticles were prepared by green route using Couroupita guianensis leaves extract. The green synthesized gold nanoparticles exhibited maximum absorbance at 526 nm in the ultraviolet spectrum. By incorporating the green synthesized gold nanoparticles in poly(vinyl alcohol) matrix, unique green organic–inorganic hybrid nanofibers (poly (vinyl alcohol)–gold nanoparticles) were developed by electrospinning. Contact angle measurements showed that the prepared poly (vinyl alcohol)–gold nanoparticles were found to be highly hydrophilic. The crystallinity of gold nanoparticles was analyzed using XRD. The synthesized gold nanoparticles and poly (vinyl alcohol)–gold nanoparticles were characterized using high-resolution transmission electron microscope, Fourier transform-infrared spectroscopy and energy-dispersive analysis of X-ray. The ultimate aim of the present work is to achieve optimum antibacterial, antifungal, biocompatibility and antiproliferative activities at a very low loading of gold nanoparticles. Vero cell lines showed a maximum of 90% cell viability on incubation with the prepared poly (vinyl alcohol)–gold nanoparticles. MCF 7 and HeLa cell lines proliferated only to 8% and 9%, respectively, on incubation with the poly (vinyl alcohol)–gold nanoparticles, and also exhibited good antibacterial and antifungal activities against test pathogenic bacterial and fungal strains. Thus, the poly (vinyl alcohol)–gold nanoparticles could be used for dual applications such as antimicrobial, anticancer treatment besides being highly biocompatible.
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Affiliation(s)
- R Manjumeena
- CAS in Botany, University of Madras, Guindy Campus, Chennai, Tamil Nadu, India
| | - T Elakkiya
- Department of Chemistry, Anna University, Chennai, Tamil Nadu, India
| | - D Duraibabu
- Department of Chemistry, Anna University, Chennai, Tamil Nadu, India
| | - A Feroze Ahamed
- Department of Microbial Technology, School of Biological Sciences, Madurai Kamaraj University, Madurai, Tamil Nadu, India
| | - PT Kalaichelvan
- CAS in Botany, University of Madras, Guindy Campus, Chennai, Tamil Nadu, India
| | - R Venkatesan
- National Institute of Ocean Technology, Chennai, Tamil Nadu, India
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Jeong L, Cho D, Kwon OH, Min BM, Park WH. Cellular response of silk fibroin nanofibers containing silver nanoparticles In vitro. Macromol Res 2014. [DOI: 10.1007/s13233-014-2104-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Three-dimensional printing of strontium-containing mesoporous bioactive glass scaffolds for bone regeneration. Acta Biomater 2014; 10:2269-81. [PMID: 24412143 DOI: 10.1016/j.actbio.2014.01.001] [Citation(s) in RCA: 181] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2013] [Revised: 12/26/2013] [Accepted: 01/02/2014] [Indexed: 12/24/2022]
Abstract
In this study, we fabricated strontium-containing mesoporous bioactive glass (Sr-MBG) scaffolds with controlled architecture and enhanced mechanical strength using a three-dimensional (3-D) printing technique. The study showed that Sr-MBG scaffolds had uniform interconnected macropores and high porosity, and their compressive strength was ∼170 times that of polyurethane foam templated MBG scaffolds. The physicochemical and biological properties of Sr-MBG scaffolds were evaluated by ion dissolution, apatite-forming ability and proliferation, alkaline phosphatase activity, osteogenic expression and extracelluar matrix mineralization of osteoblast-like cells MC3T3-E1. The results showed that Sr-MBG scaffolds exhibited a slower ion dissolution rate and more significant potential to stabilize the pH environment with increasing Sr substitution. Importantly, Sr-MBG scaffolds possessed good apatite-forming ability, and stimulated osteoblast cells' proliferation and differentiation. Using dexamethasone as a model drug, Sr-MBG scaffolds also showed a sustained drug delivery property for use in local drug delivery therapy, due to their mesoporous structure. Therefore, the 3-D printed Sr-MBG scaffolds combined the advantages of Sr-MBG such as good bone-forming bioactivity, controlled ion release and drug delivery and enhanced mechanical strength, and had potential application in bone regeneration.
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Jeong L, Park WH. Preparation and characterization of gelatin nanofibers containing silver nanoparticles. Int J Mol Sci 2014; 15:6857-79. [PMID: 24758929 PMCID: PMC4013666 DOI: 10.3390/ijms15046857] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Revised: 03/03/2014] [Accepted: 03/25/2014] [Indexed: 12/01/2022] Open
Abstract
Ag nanoparticles (NPs) were synthesized in formic acid aqueous solutions through chemical reduction. Formic acid was used for a reducing agent of Ag precursor and solvent of gelatin. Silver acetate, silver tetrafluoroborate, silver nitrate, and silver phosphate were used as Ag precursors. Ag+ ions were reduced into Ag NPs by formic acid. The formation of Ag NPs was characterized by a UV-Vis spectrophotometer. Ag NPs were quickly generated within a few minutes in silver nitrate (AgNO3)/formic acid solution. As the water content of formic acid aqueous solution increased, more Ag NPs were generated, at a higher rate and with greater size. When gelatin was added to the AgNO3/formic acid solution, the Ag NPs were stabilized, resulting in smaller particles. Moreover, gelatin limits further aggregation of Ag NPs, which were effectively dispersed in solution. The amount of Ag NPs formed increased with increasing concentration of AgNO3 and aging time. Gelatin nanofibers containing Ag NPs were fabricated by electrospinning. The average diameters of gelatin nanofibers were 166.52 ± 32.72 nm, but these decreased with the addition of AgNO3. The average diameters of the Ag NPs in gelatin nanofibers ranged between 13 and 25 nm, which was confirmed by transmission electron microscopy (TEM).
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Affiliation(s)
- Lim Jeong
- Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University, Daejeon 305-764, Korea.
| | - Won Ho Park
- Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University, Daejeon 305-764, Korea.
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Abstract
The idea of creating replacement for damaged or diseased tissue, which will mimic the physiological conditions and simultaneously promote regeneration by patients' own cells, has been a major challenge in the biomedicine for more than a decade. Therefore, nanofibers are a promising solution to address these challenges. These are solid polymer fibers with nanosized diameter, which show improved properties compared to the materials of larger dimensions or forms and therefore cause different biological responses. On the nanometric level, nanofibers provide a biomimetic environment, on the micrometric scale three-dimensional architecture with the desired surface properties regarding the intended application within the body, while on the macrometric scale mechanical strength and physiological acceptability. In the review, the development of nanofibers as tissue scaffolds, modern wound dressings for chronic wound therapy and drug delivery systems is highlighted. Research substantiates the effectiveness of nanofibers for enhanced tissue regeneration, but ascertains that evidences from clinical studies are currently lacking. Nevertheless, due to the development of nano- and bio-sciences, products on the market can be expected in the near future.
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Response of Human Mesenchymal Stem Cells to Patterned and Randomly Oriented Poly(Vinyl Alcohol) Nano-fibrous Scaffolds Surface-Modified with Arg-Gly-Asp (RGD) Ligand. Appl Biochem Biotechnol 2013; 171:1513-24. [DOI: 10.1007/s12010-013-0442-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2013] [Accepted: 08/06/2013] [Indexed: 10/26/2022]
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Bonggotgetsakul YYN, Cattrall RW, Kolev SD. A method for the coating of a polymer inclusion membrane with a monolayer of silver nanoparticles. J Memb Sci 2013. [DOI: 10.1016/j.memsci.2012.09.061] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Klang V, Valenta C, Matsko NB. Electron microscopy of pharmaceutical systems. Micron 2013; 44:45-74. [DOI: 10.1016/j.micron.2012.07.008] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2012] [Revised: 07/26/2012] [Accepted: 07/30/2012] [Indexed: 11/27/2022]
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Song J, Jang J. Complex-mediated growth mechanism of silver nanoparticles–poly(vinyl alcohol) composite nanofibers. RSC Adv 2013. [DOI: 10.1039/c3ra44956d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Martínez-Abad A, Sanchez G, Lagaron JM, Ocio MJ. Influence of speciation in the release profiles and antimicrobial performance of electrospun ethylene vinyl alcohol copolymer (EVOH) fibers containing ionic silver ions and silver nanoparticles. Colloid Polym Sci 2012. [DOI: 10.1007/s00396-012-2870-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Won JJ, Nirmala R, Navamathavan R, Kim HY. Electrospun core–shell nanofibers from homogeneous solution of poly(vinyl alcohol)/bovine serum albumin. Int J Biol Macromol 2012; 50:1292-8. [DOI: 10.1016/j.ijbiomac.2012.04.007] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2012] [Revised: 03/30/2012] [Accepted: 04/05/2012] [Indexed: 01/19/2023]
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Jin G, Prabhakaran MP, Nadappuram BP, Singh G, Kai D, Ramakrishna S. Electrospun Poly(L-Lactic Acid)-co-Poly(
ϵ
-Caprolactone) Nanofibres Containing Silver Nanoparticles for Skin-Tissue Engineering. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 23:2337-52. [DOI: 10.1163/156856211x617399] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Guorui Jin
- a Department of Mechanical Engineering , National University of Singapore , 2 Engineering Drive 3, 117576 , Singapore
| | - Molamma P. Prabhakaran
- b Health Care and Energy Materials Laboratory, E3-05-14, NUS Nanoscience and Nanotechnology Initiative, Faculty of Engineering, National University of Singapore , 2 Engineering Drive 3, 117576 , Singapore
| | - Binoy P. Nadappuram
- c Environment and Water Technology Centre of Innovation, Ngee Ann Polytechnic , 535 Clementi Road, 599489 , Singapore
| | - Gurdev Singh
- c Environment and Water Technology Centre of Innovation, Ngee Ann Polytechnic , 535 Clementi Road, 599489 , Singapore
| | - Dan Kai
- d NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore , 2 Engineering Drive 3, 117576 , Singapore
| | - Seeram Ramakrishna
- a Department of Mechanical Engineering , National University of Singapore , 2 Engineering Drive 3, 117576 , Singapore
- b Health Care and Energy Materials Laboratory, E3-05-14, NUS Nanoscience and Nanotechnology Initiative, Faculty of Engineering, National University of Singapore , 2 Engineering Drive 3, 117576 , Singapore
- e King Saud University , 11451 , Riyadh , Kingdom of Saudi Arabia
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Yoo JJ, Kim C, Chung CW, Jeong YI, Kang DH. 5-aminolevulinic acid-incorporated poly(vinyl alcohol) nanofiber-coated metal stent for application in photodynamic therapy. Int J Nanomedicine 2012; 7:1997-2005. [PMID: 22619537 PMCID: PMC3356192 DOI: 10.2147/ijn.s30298] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Background The study investigated the use of combined photodynamic therapy (PDT) and stent placement for the treatment of cholangiocarcinoma (CC). For this purpose, 5-aminolevulinic acid (ALA) was incorporated into poly(vinyl alcohol) (PVA) nanofiber, and coated onto metal stents. Their efficacy was assessed in PDT towards HuCC-T1 CC cells. Methods Fabrication of ALA-PVA nanofiber, and simultaneous coating onto metal stents, was performed through electrospinning. The dark-toxicity, generation of protoporphyrin IX (PpIX), and PDT effect of ALA and ALA-PVA nanofiber were studied in vitro, using HuCC-T1 CC cells. Results The ALA-PVA nanofibers were coated onto metal stents less than 1000 nm in diameter. ALA-only displayed marginal cytotoxicity; ALA-PVA nanofiber showed less cytotoxicity. PpIX generation was not sigficantly different between ALA and ALA-PVA nanofiber treatments. PVA itself did not generate PpIX in tumor cells. ALA and ALA-PVA nanofiber displayed a similar PDT effect on tumor cells. Cell viability was decreased, dose-dependently, until ALA concentration reached 100 μg/mL. Necrosis and apoptosis of tumor cells occurred similarly for ALA and ALA- PVA nanofiber treatments. Conclusion The ALA-PVA nanofiber-coated stent is a promising candidate for therapeutic use with cholangiocarcinoma.
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Affiliation(s)
- Jin Ju Yoo
- National Research and Development Center for Hepatobiliary Diseases, Pusan National University Yangsan Hospital, Gyeongnam 626-770, Korea
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Duncan TV. Applications of nanotechnology in food packaging and food safety: barrier materials, antimicrobials and sensors. J Colloid Interface Sci 2011; 363:1-24. [PMID: 21824625 PMCID: PMC7094330 DOI: 10.1016/j.jcis.2011.07.017] [Citation(s) in RCA: 757] [Impact Index Per Article: 58.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2011] [Revised: 07/05/2011] [Accepted: 07/06/2011] [Indexed: 12/12/2022]
Abstract
In this article, several applications of nanomaterials in food packaging and food safety are reviewed, including: polymer/clay nanocomposites as high barrier packaging materials, silver nanoparticles as potent antimicrobial agents, and nanosensors and nanomaterial-based assays for the detection of food-relevant analytes (gasses, small organic molecules and food-borne pathogens). In addition to covering the technical aspects of these topics, the current commercial status and understanding of health implications of these technologies are also discussed. These applications were chosen because they do not involve direct addition of nanoparticles to consumed foods, and thus are more likely to be marketed to the public in the short term.
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Said SS, Aloufy AK, El-Halfawy OM, Boraei NA, El-Khordagui LK. Antimicrobial PLGA ultrafine fibers: Interaction with wound bacteria. Eur J Pharm Biopharm 2011; 79:108-18. [DOI: 10.1016/j.ejpb.2011.03.002] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2011] [Revised: 02/26/2011] [Accepted: 03/03/2011] [Indexed: 01/23/2023]
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Multifunctional baicalein blended poly(vinyl alcohol) composite nanofibers via electrospinning. Colloids Surf A Physicochem Eng Asp 2011. [DOI: 10.1016/j.colsurfa.2011.05.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Wu C, Luo Y, Cuniberti G, Xiao Y, Gelinsky M. Three-dimensional printing of hierarchical and tough mesoporous bioactive glass scaffolds with a controllable pore architecture, excellent mechanical strength and mineralization ability. Acta Biomater 2011; 7:2644-50. [PMID: 21402182 DOI: 10.1016/j.actbio.2011.03.009] [Citation(s) in RCA: 178] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2011] [Revised: 03/09/2011] [Accepted: 03/09/2011] [Indexed: 10/18/2022]
Abstract
New generation biomaterials for bone regeneration should be highly bioactive, resorbable and mechanically strong. Mesoporous bioactive glass (MBG), a novel bioactive material, has been used to study bone regeneration due to its excellent bioactivity, degradation and drug delivery ability, however, the construction of three-dimensional (3-D) MBG scaffolds (as for other bioactive inorganic scaffolds) for bone regeneration remains a significant challenge due to their inherent brittleness and low strength. In this brief communication we report a new facile method to prepare hierarchical and multifunctional MBG scaffolds with a controllable pore architecture, excellent mechanical strength and mineralization ability for application in bone regeneration by a modified 3-D printing technique using polyvinylalcohol (PVA) as a binder. The method provides a new way to solve commonly existing issues for inorganic scaffold materials, for example, uncontrollable pore architectures, low strength, high brittleness and the requirement for a second sintering at high temperature. The 3-D printed MBG scaffolds obtained possess a high mechanical strength about 200 times that of traditional polyurethane foam templated MBG scaffolds. They have a highly controllable pore architecture, excellent apatite mineralization ability and sustained drug delivery properties. Our study indicates that 3-D printed MBG scaffolds may be an excellent candidate for bone regeneration.
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Supaphol P, Suwantong O, Sangsanoh P, Srinivasan S, Jayakumar R, Nair SV. Electrospinning of Biocompatible Polymers and Their Potentials in Biomedical Applications. BIOMEDICAL APPLICATIONS OF POLYMERIC NANOFIBERS 2011. [DOI: 10.1007/12_2011_143] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Jayakumar R, Prabaharan M, Shalumon KT, Chennazhi KP, Nair SV. Biomedical Applications of Polymer/Silver Composite Nanofibers. BIOMEDICAL APPLICATIONS OF POLYMERIC NANOFIBERS 2011. [DOI: 10.1007/12_2011_123] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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