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Ulker Turan C, Guvenilir Y. Electrospun poly(ω-pentadecalactone-co-ε-caprolactone)/gelatin/chitosan ternary nanofibers with antibacterial activity for treatment of skin infections. Eur J Pharm Sci 2022; 170:106113. [PMID: 34986416 DOI: 10.1016/j.ejps.2021.106113] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 12/08/2021] [Accepted: 12/30/2021] [Indexed: 11/26/2022]
Abstract
In recent years, there is an increasing attention on biocompatible electrospun nanofibers for drug delivery applications since they provide high surface area, controlled and sustained drug release, and they mimic the extracellular matrix. In the present study, tetracycline hydrochloride (TCH) antibiotic loaded poly(ω-pentadecalactone-co-ε-caprolactone)/gelatin/chitosan nanofibrous membranes were fabricated as a controlled drug delivery system. Poly(ω-pentadecalactone-co-ε-caprolactone) copolymer has been enzymatically synthesized in previous studies, thus it provides an originality to the membrane. Combination of a synthetic polymer, a protein, and a polysaccharide in order to obtain a synergetic effect is another novelty of this work and there exists limited examples for such electrospun membrane. Varied amounts of TCH was electrospun together with poly(ω-pentadecalactone-co-ε-caprolactone)/gelatin/chitosan (50/40/10 vol ratio) polymer blend (fiber diameters ranged between 85.7-225.2 nm) and several characterizations (morphological and molecular structure, wettability characteristics, and thermal behavior) were applied to examine the drug incorporation. Subsequently, in vitro drug release studies were conducted and mathematical modeling was applied for the detection of transport mechanism of drug. TCH release proceeded 14 days through an initial burst release in first hour and followed by a sustained release. 1% TCH-loaded sample was shown as optimal preparation with 96.5% total drug release and 11.8% initial burst release. TCH-loaded preparations demonstrated a good antibacterial activity against Gram-positive (Staphylococcus aureus and Bacillus subtilis) bacteria and a limited effect (no inhibition zone observed below 3% TCH concentration) against Gram-negative (Escherichia coli) bacterium. Thus, TCH concentrations of ≥ 3% could be preferred to obtain a wide-spectrum effectiveness. The presented drug delivery system is suggested to be applied for treatment of skin infections as a wound dressing device.
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Affiliation(s)
- Cansu Ulker Turan
- Istanbul Technical University, Department of Chemical Engineering, Istanbul, Turkey.
| | - Yuksel Guvenilir
- Istanbul Technical University, Department of Chemical Engineering, Istanbul, Turkey
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Martínez Cutillas A, Leon Cabanillas S, Oh S, Martínez de Ilarduya A. Enzymatic recycling of polymacrolactones. Polym Chem 2022. [DOI: 10.1039/d1py01721g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The use of renewable monomers to make new polyesters which could replace the ones obtained from petrochemical resources employing green processes is a big concern in these days. With this...
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Ulker Turan C, Metin A, Guvenilir Y. Controlled release of tetracycline hydrochloride from poly(ω-pentadecalactone-co-ε-caprolactone)/gelatin nanofibers. Eur J Pharm Biopharm 2021; 162:59-69. [PMID: 33727142 DOI: 10.1016/j.ejpb.2021.02.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 02/02/2021] [Accepted: 02/18/2021] [Indexed: 01/08/2023]
Abstract
Development of drug delivery systems is an extensively researched area in biomedical field. In recent years, there is an increasing interest on fabrication of biocompatible nanofibrous drug delivery systems. In the present study, poly(ω-pentadecalactone-co-ε-caprolactone)/gelatin nanofibrous membranes were fabricated for the controlled delivery and release of tetracycline hydrochloride (TCH) antibiotic. Poly(ω-pentadecalactone-co-ε-caprolactone) content provides an originality to the membrane, since it has been synthesized enzymatically previously. Varied amounts of tetracycline hydrochloride including poly(ω-pentadecalactone-co-ε-caprolactone)/gelatin (1:1, v:v) binary polymer blend was electrospun and characterizations (morphological and molecular structure, wettability characteristics, and thermal behavior) were applied to investigate the incorporation of drug molecule. Afterwards, in vitro drug release studies were carried out and mathematical modelling was applied to drug release data in order to clarify the transport mechanism of drug. TCH release profile comprised of an initial burst release in first hour and followed by a sustained release through 14 days which allowed sufficient antibacterial activity against both Gram-negative (Escherichia coli) and Gram-positive (Staphylococcus aureus and Bacillus subtilis) bacteria. The presented drug delivery system may be applied as an antibacterial wound dressing device for skin infections.
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Affiliation(s)
- Cansu Ulker Turan
- Istanbul Technical University, Department of Chemical Engineering, Istanbul, Turkey.
| | - Ayse Metin
- Istanbul Technical University, Polymer Science and Technology, Istanbul, Turkey
| | - Yuksel Guvenilir
- Istanbul Technical University, Department of Chemical Engineering, Istanbul, Turkey
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Ulker Turan C, Guvenilir Y. Fabrication and characterization of electrospun biopolyester/gelatin nanofibers. J Biomed Mater Res B Appl Biomater 2021; 109:1478-1487. [PMID: 33527679 DOI: 10.1002/jbm.b.34807] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 01/10/2021] [Accepted: 01/14/2021] [Indexed: 12/16/2022]
Abstract
Poly(ω-pentadecalactone-co-ε-caprolactone) copolymer (PDL-CL) is an enzymatically synthesized aliphatic biopolyester, which has been participated in a nanofibrous structure for the first time. Electrospinning of this synthetic polymer by blending with a natural polymer such as gelatin (Gel) could provide new characteristics that are significant for biomedical applications, such as drug delivery, wound healing, and tissue engineering. In the present study, PDL-CL/Gel nanofibrous membranes were successfully produced and characterized. The average diameter of nanofibers was 305.0 ± 45.5 nm that may be beneficial in applications mentioned above. In order to increase hydrolytic resistance, cross-linking with glutaraldehyde vapor was applied. Cross-linking for 2 h was enough to obtain a nanofibrous membrane that was able to resist in pH 7.4 phosphate buffered saline for 30 days. In addition, contact angle measurement results had shown that, cross-linked nanofibrous membrane had good wettability, which is a required specification to be applied in biomedical field. Hence, this study provides an overview on fabrication of fine PDL-CL/Gel nanofibers, which may have potential to be used in biomedical area.
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Affiliation(s)
- Cansu Ulker Turan
- Department of Chemical Engineering, Istanbul Technical University, Istanbul, Turkey
| | - Yuksel Guvenilir
- Department of Chemical Engineering, Istanbul Technical University, Istanbul, Turkey
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Herrera-Kao WA, Aguilar-Vega MJ, Cervantes-Uc JM. Microwave-assisted synthesis of the lipase-catalyzed ring-opening copolymerization of ε-caprolactone and ω-pentadecanolactone: Thermal and FTIR characterization. E-POLYMERS 2020. [DOI: 10.1515/epoly-2020-0067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractMicrowave-assisted synthesis of the lipase-catalyzed ring opening polymerization of ε-caprolactone (ε-CL) and ω-pentadecanolactone (ω-PDL) monomers was studied. A series of P(CL-co-PDL), with different molar feed ratios, including (ε-CL/ω-PDL) 100/0, 75/25, 50/50, 25/75, and 0/100, were synthesized. The resulting polyesters were characterized by Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), and thermogravimetric analysis (TGA). The microwave-assisted polymerization of the monomers reached high conversions (91–95%) within 60 min. FTIR spectra showed the typical absorption bands of these polyesters. A very intense band in the carbonyl region, which was shifted from 1,720 cm−1 for PCL to 1,732 cm−1 for PPDL homopolymer, as well as peaks owing to methylene groups in the 2,990–2,850 cm−1 range. DSC results revealed that all polyester samples were semi-crystalline. Interestingly, the copolymers exhibited only one melting peak (Tm), and their Tm values linearly increased from 57°C to 95°C as PPDL concentration was increased. Thermal stability of polyesters also depended on PDL content; an increase in PDL concentration increases polymer degradation temperature (Td).
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Affiliation(s)
- Wilberth A. Herrera-Kao
- Unidad de Materiales, Centro de Investigación Científica de Yucatán, A.C., Calle 43 No. 130 x 30y 32, Col. Chuburná de Hidalgo. C.P. 97205, Mérida, Yucatán, México
| | - Manuel J. Aguilar-Vega
- Unidad de Materiales, Centro de Investigación Científica de Yucatán, A.C., Calle 43 No. 130 x 30y 32, Col. Chuburná de Hidalgo. C.P. 97205, Mérida, Yucatán, México
| | - José Manuel Cervantes-Uc
- Unidad de Materiales, Centro de Investigación Científica de Yucatán, A.C., Calle 43 No. 130 x 30y 32, Col. Chuburná de Hidalgo. C.P. 97205, Mérida, Yucatán, México
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Wilson JA, Ates Z, Pflughaupt RL, Dove AP, Heise A. Polymers from macrolactones: From pheromones to functional materials. Prog Polym Sci 2019. [DOI: 10.1016/j.progpolymsci.2019.02.005] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Champagne E, Strandman S, Zhu XX. Recent Developments and Optimization of Lipase-Catalyzed Lactone Formation and Ring-Opening Polymerization. Macromol Rapid Commun 2016; 37:1986-2004. [DOI: 10.1002/marc.201600494] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Revised: 09/16/2016] [Indexed: 11/07/2022]
Affiliation(s)
- Elyse Champagne
- Département de Chimie; Université de Montréal; C. P. 6128, Succursale Center-ville Montréal QC H3C 3J7 Canada
| | - Satu Strandman
- Département de Chimie; Université de Montréal; C. P. 6128, Succursale Center-ville Montréal QC H3C 3J7 Canada
| | - Xiao-Xia Zhu
- Département de Chimie; Université de Montréal; C. P. 6128, Succursale Center-ville Montréal QC H3C 3J7 Canada
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Shoda SI, Uyama H, Kadokawa JI, Kimura S, Kobayashi S. Enzymes as Green Catalysts for Precision Macromolecular Synthesis. Chem Rev 2016; 116:2307-413. [PMID: 26791937 DOI: 10.1021/acs.chemrev.5b00472] [Citation(s) in RCA: 303] [Impact Index Per Article: 37.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The present article comprehensively reviews the macromolecular synthesis using enzymes as catalysts. Among the six main classes of enzymes, the three classes, oxidoreductases, transferases, and hydrolases, have been employed as catalysts for the in vitro macromolecular synthesis and modification reactions. Appropriate design of reaction including monomer and enzyme catalyst produces macromolecules with precisely controlled structure, similarly as in vivo enzymatic reactions. The reaction controls the product structure with respect to substrate selectivity, chemo-selectivity, regio-selectivity, stereoselectivity, and choro-selectivity. Oxidoreductases catalyze various oxidation polymerizations of aromatic compounds as well as vinyl polymerizations. Transferases are effective catalysts for producing polysaccharide having a variety of structure and polyesters. Hydrolases catalyzing the bond-cleaving of macromolecules in vivo, catalyze the reverse reaction for bond forming in vitro to give various polysaccharides and functionalized polyesters. The enzymatic polymerizations allowed the first in vitro synthesis of natural polysaccharides having complicated structures like cellulose, amylose, xylan, chitin, hyaluronan, and chondroitin. These polymerizations are "green" with several respects; nontoxicity of enzyme, high catalyst efficiency, selective reactions under mild conditions using green solvents and renewable starting materials, and producing minimal byproducts. Thus, the enzymatic polymerization is desirable for the environment and contributes to "green polymer chemistry" for maintaining sustainable society.
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Affiliation(s)
- Shin-ichiro Shoda
- Department of Biomolecular Engineering, Graduate School of Engineering, Tohoku University , Aoba-ku, Sendai 980-8579, Japan
| | - Hiroshi Uyama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University , Yamadaoka, Suita 565-0871, Japan
| | - Jun-ichi Kadokawa
- Department of Chemistry, Biotechnology, and Chemical Engineering, Graduate School of Science and Engineering, Kagoshima University , Korimoto, Kagoshima 890-0065, Japan
| | - Shunsaku Kimura
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University , Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Shiro Kobayashi
- Center for Fiber & Textile Science, Kyoto Institute of Technology , Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
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