51
|
Dias AM, da Silva FG, Monteiro APDF, Pinzón-García AD, Sinisterra RD, Cortés ME. Polycaprolactone nanofibers loaded oxytetracycline hydrochloride and zinc oxide for treatment of periodontal disease. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 103:109798. [PMID: 31349501 DOI: 10.1016/j.msec.2019.109798] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Revised: 02/20/2019] [Accepted: 05/25/2019] [Indexed: 12/20/2022]
Abstract
Periodontal diseases (PD) are mixed bacterial infections caused by microorganisms that colonize the tooth surface, leading to destructions at tooth-supporting tissues. Several local delivery systems, as nanofibers, have been developed for the treatment of PD. The purpose of the present study was developing polycaprolactone (PCL) nanofibers incorporating two antibacterial agents, OTC and ZnO, for use in the treatment of PD. Nanofibers were produced by electrospinning method: PCL loaded with ZnO (PCL-Z), PCL loaded with OTC (PCL-OTC), PCL loaded with OTC and ZnO (PCL-OTCz) and pristine PCL (PCL-P). The nanofibers were characterized physicochemically using different techniques. In addition, in vitro study of the OTC release from the nanofibers was performed. The PCL-OCT showed sustained release of the drug up to 10 h, releasing 100% of OTC. However, the PCL-OTCz nanofiber showed a slow release of OTC up to 120 h (5th day) with 54% of drug retention. The cytotoxicity assay showed that PCL-OTC nanofiber was slightly cytotoxic after 48 h and the other nanofibers were non-cytotoxic. The antibacterial activity of the nanofibers was evaluated by qualitative and quantitative analysis and against mixed bacterial culture, composed of four Gram-negative anaerobic bacteria involved in periodontal diseases. The disk diffusion method showed that the PCL-OTC displayed higher inhibition zone than PCL-OTCz (p < 0.001). The quantitative analysis, evaluated by broth culture, showed that the PCL-OTC and PCL-OTCz exhibited excellent activity against a mixed bacterial culture with growth inhibition of 98.0% and 97.5%, respectively. Based on these results, the PCL-OTCz nanofibers developed have great potential as a drug delivery system for the PD treatment.
Collapse
Affiliation(s)
- Alexa Magalhães Dias
- Restorative Dentistry Department, Faculty of Dentistry, Universidade Federal de Minas Gerais, Av. Presidente Antônio Carlos 6627, Belo Horizonte, MG CEP 31270901, Brazil
| | - Flávia Gontijo da Silva
- Chemistry Department, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Av. Presidente Antônio Carlos 6627, Belo Horizonte, MG CEP 31270901, Brazil
| | - Ana Paula de Figueiredo Monteiro
- Chemistry Department, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Av. Presidente Antônio Carlos 6627, Belo Horizonte, MG CEP 31270901, Brazil
| | - Ana Delia Pinzón-García
- Chemistry Department, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Av. Presidente Antônio Carlos 6627, Belo Horizonte, MG CEP 31270901, Brazil
| | - Rubén D Sinisterra
- Chemistry Department, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Av. Presidente Antônio Carlos 6627, Belo Horizonte, MG CEP 31270901, Brazil
| | - Maria Esperanza Cortés
- Restorative Dentistry Department, Faculty of Dentistry, Universidade Federal de Minas Gerais, Av. Presidente Antônio Carlos 6627, Belo Horizonte, MG CEP 31270901, Brazil.
| |
Collapse
|
52
|
Eskitoros-Togay ŞM, Bulbul YE, Tort S, Demirtaş Korkmaz F, Acartürk F, Dilsiz N. Fabrication of doxycycline-loaded electrospun PCL/PEO membranes for a potential drug delivery system. Int J Pharm 2019; 565:83-94. [PMID: 31063838 DOI: 10.1016/j.ijpharm.2019.04.073] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 04/13/2019] [Accepted: 04/26/2019] [Indexed: 12/27/2022]
Abstract
Potential usage of biodegradable and biocompatible polymeric nanofibers is the most attention grabbing topic for the drug delivery system. In order to fabricate ultrafine fibers, electrospinning, one of the well-known techniques, has been extensively studied in the literature. In the present study, the objective is to achieve the optimum blend of hydrophobic and hydrophilic polymers to be used as a drug delivery vehicle and also to obtain the optimum amount of doxycycline (DOXH) to reach the optimum release. In this case, the biodegradable and biocompatible synthetic polymers, poly(ε-caprolactone) (PCL) and poly(ethylene oxide) (PEO), were blended with different ratios for the production of DOXH-loaded electrospun PCL/PEO membranes using electrospinning technique, which is a novel attempt. The fabricated membranes were subsequently characterized to optimize the blending ratio of polymers by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction analysis (XRD) and water contact angle analysis. After the characterization studies, different amounts of DOXH were loaded to the optimized blend of PCL and PEO to investigate the release of DOXH from the membrane used as a drug delivery vehicle. In vitro drug release studies were performed, and in vitro drug release kinetics were assessed to confirm the usage of these nanofiber materials as efficient drug delivery vehicles. The results indicated that 3.5% DOXH-loaded (75:25 w/w) PCL/PEO is the most acceptable membrane to provide prolonged release rather than immediate release of DOXH.
Collapse
Affiliation(s)
- Ş Melda Eskitoros-Togay
- Department of Chemical Engineering, Institute for Graduate School of Natural and Applied Sciences, Gazi University, 06560 Ankara, Turkey
| | - Y Emre Bulbul
- Department of Chemical Engineering, Institute for Graduate School of Natural and Applied Sciences, Gazi University, 06560 Ankara, Turkey
| | - Serdar Tort
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Gazi University, 06330 Ankara, Turkey
| | - Funda Demirtaş Korkmaz
- Department of Medical Biology and Genetics, Faculty of Medicine, Gazi University, 06500 Ankara, Turkey; Department of Medical Biology, Faculty of Medicine, Giresun University, 28100 Giresun, Turkey
| | - Füsun Acartürk
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Gazi University, 06330 Ankara, Turkey
| | - Nursel Dilsiz
- Department of Chemical Engineering, Institute for Graduate School of Natural and Applied Sciences, Gazi University, 06560 Ankara, Turkey; Department of Chemical Engineering, Faculty of Engineering, Gazi University, 06570 Ankara, Turkey.
| |
Collapse
|
53
|
Siddiqui N, Asawa S, Birru B, Baadhe R, Rao S. PCL-Based Composite Scaffold Matrices for Tissue Engineering Applications. Mol Biotechnol 2019; 60:506-532. [PMID: 29761314 DOI: 10.1007/s12033-018-0084-5] [Citation(s) in RCA: 207] [Impact Index Per Article: 41.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Abstract
Biomaterial-based scaffolds are important cues in tissue engineering (TE) applications. Recent advances in TE have led to the development of suitable scaffold architecture for various tissue defects. In this narrative review on polycaprolactone (PCL), we have discussed in detail about the synthesis of PCL, various properties and most recent advances of using PCL and PCL blended with either natural or synthetic polymers and ceramic materials for TE applications. Further, various forms of PCL scaffolds such as porous, films and fibrous have been discussed along with the stem cells and their sources employed in various tissue repair strategies. Overall, the present review affords an insight into the properties and applications of PCL in various tissue engineering applications.
Collapse
Affiliation(s)
- Nadeem Siddiqui
- Stem Cell Research Laboratory, Department of Biotechnology, NIT Warangal, Warangal, Telangana, 506004, India
| | - Simran Asawa
- Stem Cell Research Laboratory, Department of Biotechnology, NIT Warangal, Warangal, Telangana, 506004, India
| | - Bhaskar Birru
- Stem Cell Research Laboratory, Department of Biotechnology, NIT Warangal, Warangal, Telangana, 506004, India
| | - Ramaraju Baadhe
- Stem Cell Research Laboratory, Department of Biotechnology, NIT Warangal, Warangal, Telangana, 506004, India
| | - Sreenivasa Rao
- Stem Cell Research Laboratory, Department of Biotechnology, NIT Warangal, Warangal, Telangana, 506004, India.
| |
Collapse
|
54
|
Wang F, Sun Z, Yin J, Xu L. Preparation, Characterization and Properties of Porous PLA/PEG/Curcumin Composite Nanofibers for Antibacterial Application. NANOMATERIALS 2019; 9:nano9040508. [PMID: 30986938 PMCID: PMC6523786 DOI: 10.3390/nano9040508] [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: 02/23/2019] [Revised: 03/14/2019] [Accepted: 03/21/2019] [Indexed: 12/22/2022]
Abstract
Polylactide/polyethylene glycol/curcumin (PLA/PEG/Cur) composite nanofibers (CNFs) with varying ratios of PEG were successfully fabricated by electrospinning. Characterizations of the samples, such as the porous structure, crystalline structure, pore size, wetting property and Cur release property were investigated by a combination of scanning electron microscopy (SEM), Fourier-transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD) and UV spectrophotometer. The antibacterial properties of the prepared porous CNFs against Escherichia coli bacteria were studied. The results showed that with the decrease of PEG in the CNFs, there appeared an evident porous structure on the CNF surface, and the porous structure could enhance the release properties of Cur from the CNFs. When the weight ratio (PEG:PLA) was 1:9, the pore structure of the nanofiber surface became most evident and the amount of Cur released was highest. However, the antibacterial effect of nonporous CNFs was better due to burst release over a short period of time. That meant that the porous structure of the CNFs could reduce the burst release and provide better control over the drug release.
Collapse
Affiliation(s)
- Feifei Wang
- National Engineering Laboratory for Modern Silk, College of Textile and Engineering, Soochow University, 199 Ren-ai Road, Suzhou 215123, China.
| | - Zhaoyang Sun
- National Engineering Laboratory for Modern Silk, College of Textile and Engineering, Soochow University, 199 Ren-ai Road, Suzhou 215123, China.
| | - Jing Yin
- National Engineering Laboratory for Modern Silk, College of Textile and Engineering, Soochow University, 199 Ren-ai Road, Suzhou 215123, China.
| | - Lan Xu
- National Engineering Laboratory for Modern Silk, College of Textile and Engineering, Soochow University, 199 Ren-ai Road, Suzhou 215123, China.
| |
Collapse
|
55
|
Bogusz K, Tehei M, Cardillo D, Lerch M, Rosenfeld A, Dou SX, Liu HK, Konstantinov K. High toxicity of Bi(OH) 3 and α-Bi 2O 3 nanoparticles towards malignant 9L and MCF-7 cells. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 93:958-967. [PMID: 30274133 DOI: 10.1016/j.msec.2018.09.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 08/04/2018] [Accepted: 09/01/2018] [Indexed: 01/22/2023]
Abstract
Here we report the extreme toxicity in vitro of Bi(OH)3 and α-Bi2O3 nanoparticles (NPs), obtained through a facile synthesis with an average single particle size of 6-10 nm, tested on malignant gliosarcoma 9L and MCF-7 human breast cancer cells. For both nanomaterials, clonogenic assays reveal a mortality of over 90% in 9L and MCF-7 cells for a concentration of 50 μg/mL after incubation for 24 h. Moreover, the NPs show a significant mortality of up to 60% in the malignant cells at the very low concentration of 6.25 μg/mL. In contrast, at the same concentration, the nanomaterials exhibit no noticeable mortality towards normal Madin-Darby canine kidney cells. The internalisation of the NPs was demonstrated using flow cytometry and confocal microscopy was used to investigate when the loss of cell viability starts. The NPs show a faster cell death in 9L cells compared with MCF-7 cells, demonstrated via the identification of apoptosis through increased sub G1 levels after 24 h of NP incubation. Cleavage is identified as the main apoptotic nuclear morphology in 9L, which suggests the presence of reactive oxygen species.
Collapse
Affiliation(s)
- K Bogusz
- Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials, University of Wollongong, NSW, Australia; Illawarra Health and Medical Research Institute, University of Wollongong, NSW, Australia
| | - M Tehei
- Illawarra Health and Medical Research Institute, University of Wollongong, NSW, Australia; School of Chemistry, Faculty of Science, Medicine and Health, University of Wollongong, NSW, Australia; Centre for Medical and Radiation Physics, Faculty of Engineering and Information Science, University of Wollongong, NSW, Australia.
| | - D Cardillo
- Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials, University of Wollongong, NSW, Australia; Illawarra Health and Medical Research Institute, University of Wollongong, NSW, Australia
| | - M Lerch
- Illawarra Health and Medical Research Institute, University of Wollongong, NSW, Australia; Centre for Medical and Radiation Physics, Faculty of Engineering and Information Science, University of Wollongong, NSW, Australia
| | - A Rosenfeld
- Illawarra Health and Medical Research Institute, University of Wollongong, NSW, Australia; Centre for Medical and Radiation Physics, Faculty of Engineering and Information Science, University of Wollongong, NSW, Australia
| | - S X Dou
- Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials, University of Wollongong, NSW, Australia
| | - H K Liu
- Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials, University of Wollongong, NSW, Australia
| | - K Konstantinov
- Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials, University of Wollongong, NSW, Australia; Illawarra Health and Medical Research Institute, University of Wollongong, NSW, Australia.
| |
Collapse
|
56
|
Antibacterial and Barrier Properties of Gelatin Coated by Electrospun Polycaprolactone Ultrathin Fibers Containing Black Pepper Oleoresin of Interest in Active Food Biopackaging Applications. NANOMATERIALS 2018; 8:nano8040199. [PMID: 29597268 PMCID: PMC5923529 DOI: 10.3390/nano8040199] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 03/22/2018] [Accepted: 03/26/2018] [Indexed: 12/26/2022]
Abstract
The present study evaluated the effect of using electrospun polycaprolactone (PCL) as a barrier coating and black pepper oleoresin (OR) as a natural extract on the morphology, thermal, mechanical, antimicrobial, oxygen, and water vapor barrier properties of solvent cast gelatin (GEL). The antimicrobial activity of the developed multilayer system obtained by the so-called electrospinning coating technique was also evaluated against Staphylococcus aureus strains for 10 days. The results showed that the multilayer system containing PCL and OR increased the thermal resistance, elongated the GEL film, and significantly diminished its permeance to water vapor. Active multilayer systems stored in hermetically closed bottles increased their antimicrobial activity after 10 days by inhibiting the growth of Staphylococcus aureus. This study demonstrates that addition of electrospun PCL ultrathin fibers and OR improved the properties of GEL films, which promoted its potential use in active food packaging applications.
Collapse
|