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Xie X, Zhu H, Zhang B, Xu C, Zhang B, Qi L. Effect of high-pressure homogenisation-modified bacterial cellulose on rice starch retrogradation. INTERNATIONAL FOOD RESEARCH JOURNAL 2022. [DOI: 10.47836/ifrj.29.6.21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Delaying rice starch (RS) retrogradation can improve the quality parameters of rice-based starchy foods during storage. Modification of insoluble dietary fibre has always been used in the starchy food industry. Compared with vegetal insoluble dietary fibre, bacterial cellulose (BC) has many advantages such as high purity, smaller particle size, and elevated water absorption capacity. In the present work, BC was modified by high-pressure homogenisation (MBC) with different pressure levels (0, 50, 80, 120, and 160 MPa) to investigate the effect of MBC on RS retrogradation. Results showed that high-pressure homogenisation could decrease the particle size of BC. MBC addition to RS decreased paste breakdown and setback, thus suggesting that MBC might be a good candidate for increasing the stability of RS paste, and inhibiting its short-term retrogradation. The thermal properties and X-ray diffraction patterns of RS indicated that supplementing MBC could decrease the gelatinised enthalpy and relative crystallinity of RS paste during storage. Results also indicated that MBC could provide an opportunity to restrain RS retrogradation, and might be suitable for designing fibre-enriched products.
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Bacterial cellulose production, functionalization, and development of hybrid materials using synthetic biology. Polym J 2022. [DOI: 10.1038/s41428-021-00606-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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3
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Ho YS, Fahad Halim AFM, Islam MT. The Trend of Bacterial Nanocellulose Research Published in the Science Citation Index Expanded From 2005 to 2020: A Bibliometric Analysis. Front Bioeng Biotechnol 2022; 9:795341. [PMID: 35111736 PMCID: PMC8801885 DOI: 10.3389/fbioe.2021.795341] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 12/27/2021] [Indexed: 11/13/2022] Open
Abstract
To gain insight into the trend of bacterial nanocellulose research, a bibliometric analysis was performed using the Science Citation Index Expanded database from 2005 to 2020. The study concentrated on the publication's performance in terms of annual outputs and citations, mainstream journals, categories of the Web of Sciences, leading countries, prominent institutions, and trends in research. Current research priorities and future trends were analyzed after summarizing the most commonly used keywords extracted from words in the paper title analysis, authors' keyword analysis, and KeyWords Plus. The findings revealed that the annual output in the form of scholarly articles on bacterial nanocellulose research steadily increased during the first quartile of the study period, followed by a very rapid increase in the last five-years of the study. Increasing mechanical strength would remain the main future focus of bacterial nanocellulose research to create its scope in different field of applications.
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Affiliation(s)
- Yuh-Shan Ho
- Trend Research Centre, Asia University, Taichung, Taiwan
| | | | - Mohammad Tajul Islam
- Department of Textile Engineering, Ahsanullah University of Science and Technology, Dhaka, Bangladesh
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Bacterial Cellulose: Production, Characterization, and Application as Antimicrobial Agent. Int J Mol Sci 2021; 22:ijms222312984. [PMID: 34884787 PMCID: PMC8657668 DOI: 10.3390/ijms222312984] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 11/24/2021] [Accepted: 11/29/2021] [Indexed: 12/27/2022] Open
Abstract
Bacterial cellulose (BC) is recognized as a multifaceted, versatile biomaterial with abundant applications. Groups of microorganisms such as bacteria are accountable for BC synthesis through static or agitated fermentation processes in the presence of competent media. In comparison to static cultivation, agitated cultivation provides the maximum yield of the BC. A pure cellulose BC can positively interact with hydrophilic or hydrophobic biopolymers while being used in the biomedical domain. From the last two decades, the reinforcement of biopolymer-based biocomposites and its applicability with BC have increased in the research field. The harmony of hydrophobic biopolymers can be reduced due to the high moisture content of BC in comparison to hydrophilic biopolymers. Mechanical properties are the important parameters not only in producing green composite but also in dealing with tissue engineering, medical implants, and biofilm. The wide requisition of BC in medical as well as industrial fields has warranted the scaling up of the production of BC with added economy. This review provides a detailed overview of the production and properties of BC and several parameters affecting the production of BC and its biocomposites, elucidating their antimicrobial and antibiofilm efficacy with an insight to highlight their therapeutic potential.
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Sukhanova A, Murzova A, Boyandin A, Kiselev E, Sukovatyi A, Kuzmin A, Shabanov A. Poly-3-hydroxybutyrate/chitosan composite films and nonwoven mats. Int J Biol Macromol 2020; 165:2947-2956. [DOI: 10.1016/j.ijbiomac.2020.10.177] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 10/16/2020] [Accepted: 10/21/2020] [Indexed: 12/17/2022]
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6
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Martinelli A, Giannini L, Branduardi P. Enzymatic Modification of Cellulose To Unlock Its Exploitation in Advanced Materials. Chembiochem 2020; 22:974-981. [PMID: 33063936 DOI: 10.1002/cbic.202000643] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 10/13/2020] [Indexed: 01/16/2023]
Abstract
Nowadays natural biopolymers have a wide variety of uses in various industrial applications, such as food, adhesives and composite materials. Among them, cellulose has attracted the interest of researchers due to its properties: high strength and flexibility, biocompatibility and nontoxicity. Despite that, in many cases its practical use is limited because of poor solubility and/or an unsuitable hydrophilic/hydrophobic balance. In this context, enzymatic modification appears as a powerful strategy to overcome these problems through selective, green and environmentally friendly processes. This minireview discusses the different methods developed for the enzymatic modification of cellulose, emphasizing the type of reaction, the enzymes used (laccases, esterases, lipases, hexokinases, etc.), and the properties and applications of the cellulose derivatives obtained. Considering that cellulose is the most abundant natural polymer on Earth and can be derived from residual lignocellulosic biomass, the impact of its use in bio-based process following the logic of the circular economy is relevant.
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Affiliation(s)
- Andrea Martinelli
- DepartmentMaterials Science, University of Milano Bicocca, Via Cozzi 55, 20125, Milan, Italy.,Department of Biotechnology and Biosciences, University of Milano Bicocca, Piazza della Scienza, 2, 20126, Milan, Italy
| | | | - Paola Branduardi
- Department of Biotechnology and Biosciences, University of Milano Bicocca, Piazza della Scienza, 2, 20126, Milan, Italy
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7
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Development of biocomposites based on bacterial cellulose reinforced delignified rice husk-PVA plasticized with glycerol. JOURNAL OF POLYMER RESEARCH 2020. [DOI: 10.1007/s10965-020-02314-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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8
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Rasheed T, Bilal M, Zhao Y, Raza A, Shah SZH, Iqbal HMN. Physiochemical characteristics and bone/cartilage tissue engineering potentialities of protein-based macromolecules - A review. Int J Biol Macromol 2019; 121:13-22. [PMID: 30291929 DOI: 10.1016/j.ijbiomac.2018.10.009] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 09/29/2018] [Accepted: 10/01/2018] [Indexed: 02/08/2023]
Abstract
Protein-based macromolecules such as keratin, silk fibroin, collagen, gelatin, and fibrin have emerged as potential candidate materials with unique structural and functional characteristics. Despite many advantages, the development of tissue-engineered constructs that can match the biological context of real tissue matrix remains a challenge in tissue engineering (TE). The tissue-engineered constructs should also support vascularization. Protein-based macromolecules, in pristine or combine form, provide a promising platform to engineer constructs with unique design and functionalities which are highly essential for an appropriate stimulation and differentiation of cells in a specific TE approach. However, much work remains to be undertaken with particular reference to in-depth interactions between constructed cues and target host tissues. Thus, modern advancements are emphasizing to understand critiques and functionalization of protein-based macromolecule that organize not only cellular activities but also tissue regenerations. In this review, numerous physicochemical, functional, and structural characteristics of protein-based macromolecules such as keratin, silk fibroin, collagen, gelatin, and fibrin are discussed. This review also presents the hope vs. hype phenomenon for tissue engineering. Later part of the review focuses on different requisite characteristics and their role in TE. The discussion presented here could prove highly useful for the construction of scaffolds with requisite features.
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Affiliation(s)
- Tahir Rasheed
- School of Chemistry & Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian 223003, China.
| | - Yuping Zhao
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian 223003, China
| | - Ali Raza
- School of Biomedical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, 200240 Shanghai, China
| | | | - Hafiz M N Iqbal
- Tecnologico de Monterrey, School of Engineering and Sciences, Campus Monterrey, Ave. Eugenio Garza Sada 2501, Monterrey, N.L. CP 64849, Mexico.
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9
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Iqbal HMN. The Quest for Materials-Based Hydrogels with Antimicrobial and Antiviral Potentialities. Open Virol J 2018; 12:69-79. [PMID: 30288196 PMCID: PMC6142656 DOI: 10.2174/1874357901812010069] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 03/14/2018] [Accepted: 05/14/2018] [Indexed: 11/22/2022] Open
Abstract
In recent years, the Antimicrobial Resistance (AMR) or Multidrug Resistance (MDR) and viral infections have become serious health issues, globally. Finally, after decades of negligence, the AMR/MDR and viral infection issues have now captured a worldwide attention of the global leaders, public health community, legalization authorities, academia, research-based organizations, and medicinal sector of the modern world, alike. Aiming to resolve these issues, various methodological approaches have been exploited, in the past several years. Among them, biomaterials-based therapeutic hydrogels are of supreme interests for an enhanced and efficient delivery in the current biomedical sector. Depending on the regulatory authorities and practices, the antibiotics consumption was expedited than ever before driven by rising and increasing access, across the globe. Though the emergence of AMR/MDR in microorganisms and emergence/reemergence of viral infections are considered as a natural phenomenon, however, these concerning issues have been driven by those mentioned above faulty human behavior. In this context, many scientists, around the globe, are working at wider spectrum to resolve this problematic issue, efficiently. A proper understanding of biological mechanisms is essential to combat this global threat to the living beings. In this review, an effort has been made to highlight the potent features of materials based hydrogels possessing antimicrobial and antiviral potentialities. The information is also given on the potential research activities, and possible mechanisms of actions of hydrogels are discussed with a closeup look at the future recommendations.
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Affiliation(s)
- Hafiz M N Iqbal
- Tecnologico de Monterrey, School of Engineering and Sciences, Campus Monterrey, Ave. Eugenio Garza Sada 2501, Monterrey, N.L., CP 64849, Mexico
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Iqbal HM, Kyazze G, Tron T, Keshavarz T. Laccase from Aspergillus niger: A novel tool to graft multifunctional materials of interests and their characterization. Saudi J Biol Sci 2018; 25:545-550. [PMID: 29686517 PMCID: PMC5910650 DOI: 10.1016/j.sjbs.2016.01.027] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Revised: 10/15/2015] [Accepted: 01/15/2016] [Indexed: 02/05/2023] Open
Abstract
In the present study, we propose a green route to prepare poly(3-hydroxybutyrate) [(P(3HB)] grafted ethyl cellulose (EC) based green composites with novel characteristics through laccase-assisted grafting. P(3HB) was used as a side chain whereas, EC as a backbone material under ambient processing conditions. A novel laccase obtained from Aspergillus niger through its heterologous expression in Saccharomyces cerevisiae was used as a green catalyst for grafting purposes without the use of additional initiator and/or cross-linking agents. Subsequently, the resulting P(3HB)-g-EC composites were characterized using a range of analytical and imagining techniques. Fourier transform infrared spectroscopy (FT-IR) spectra showed an increase in the hydrogen-bonding type interactions between the side chains of P(3HB) and backbone material of EC. Evidently, X-ray diffraction (XRD) analysis revealed a decrease in the crystallinity of the P(3HB)-g-EC composites as compared to the pristine individual polymers. A homogeneous P(3HB) distribution was also achieved in case of the graft composite prepared in the presence of 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) as a mediator along with laccase as compared to the composite prepared using pure laccase alone. A substantial improvement in the thermal and mechanical characteristics was observed for grafted composites up to the different extent as compared to the pristine counterparts. The hydrophobic/hydrophilic properties of the grafted composites were better than those of the pristine counterparts.
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Affiliation(s)
- Hafiz M.N. Iqbal
- Applied Biotechnology Research Group, Department of Life Sciences, Faculty of Science and Technology, University of Westminster, London, United Kingdom
- Corresponding authors.
| | - Godfrey Kyazze
- Applied Biotechnology Research Group, Department of Life Sciences, Faculty of Science and Technology, University of Westminster, London, United Kingdom
| | - Thierry Tron
- Aix Marseille Université, CNRS, Centrale Marseille, iSm2 UMR 7313, Marseille, France
| | - Tajalli Keshavarz
- Applied Biotechnology Research Group, Department of Life Sciences, Faculty of Science and Technology, University of Westminster, London, United Kingdom
- Corresponding authors.
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Alemán-Nava GS, Gatti IA, Parra-Saldivar R, Dallemand JF, Rittmann BE, Iqbal HM. Biotechnological revalorization of Tequila waste and by-product streams for cleaner production – A review from bio-refinery perspective. JOURNAL OF CLEANER PRODUCTION 2018. [DOI: 10.1016/j.jclepro.2017.07.134] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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12
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Villalba-R AM, Dhama K, Iqbal HM. Biomaterials-based Hydrogels and their Drug Delivery Potentialities. INT J PHARMACOL 2017. [DOI: 10.3923/ijp.2017.864.873] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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13
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Bedian L, Villalba-Rodríguez AM, Hernández-Vargas G, Parra-Saldivar R, Iqbal HMN. Bio-based materials with novel characteristics for tissue engineering applications - A review. Int J Biol Macromol 2017; 98:837-846. [PMID: 28223133 DOI: 10.1016/j.ijbiomac.2017.02.048] [Citation(s) in RCA: 84] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Revised: 02/08/2017] [Accepted: 02/10/2017] [Indexed: 02/05/2023]
Abstract
Recently, a wider spectrum of bio-based materials and materials-based novel constructs and systems has been engineered with high interests. The key objective is to help for an enhanced/better quality of life in a secure way by avoiding/limiting various adverse effects of some in practice traditional therapies. In this context, different methodological approaches including in vitro, in vivo, and ex vivo techniques have been exploited, so far. Among them, bio-based therapeutic constructs are of supreme interests for an enhanced and efficient delivery in the current biomedical sector of the modern world. The development of new types of novel, effective and highly reliable materials-based novel constructs for multipurpose applications is essential and a core demand to tackle many human health related diseases. Bio-based materials possess several complementary functionalities, e.g. unique chemical structure, bioactivity, non-toxicity, biocompatibility, biodegradability, recyclability, etc. that position them well in the modern world's materials sector. In this context, the utilization of biomaterials provides extensive opportunities for experimentation in the field of interdisciplinary and multidisciplinary scientific research. With an aim to address the global dependence on petroleum-based polymers, researchers have been redirecting their interests to the engineering of biological materials for targeted applications in different industries including cosmetics, pharmaceuticals, and other biotechnological or biomedical applications. Herein, we reviewed biotechnological advancements at large and tissue engineering from a biomaterials perspective in particular and envision directions of future developments.
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Affiliation(s)
- Luis Bedian
- School of Engineering and Science, Tecnologico de Monterrey, Campus Monterrey, Ave. Eugenio Garza Sada 2501, Monterrey, N.L. CP 64849, Mexico
| | - Angel M Villalba-Rodríguez
- School of Engineering and Science, Tecnologico de Monterrey, Campus Monterrey, Ave. Eugenio Garza Sada 2501, Monterrey, N.L. CP 64849, Mexico
| | - Gustavo Hernández-Vargas
- School of Engineering and Science, Tecnologico de Monterrey, Campus Monterrey, Ave. Eugenio Garza Sada 2501, Monterrey, N.L. CP 64849, Mexico
| | - Roberto Parra-Saldivar
- School of Engineering and Science, Tecnologico de Monterrey, Campus Monterrey, Ave. Eugenio Garza Sada 2501, Monterrey, N.L. CP 64849, Mexico
| | - Hafiz M N Iqbal
- School of Engineering and Science, Tecnologico de Monterrey, Campus Monterrey, Ave. Eugenio Garza Sada 2501, Monterrey, N.L. CP 64849, Mexico.
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14
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Bilal M, Asgher M, Iqbal HMN, Hu H, Zhang X. Biotransformation of lignocellulosic materials into value-added products-A review. Int J Biol Macromol 2017; 98:447-458. [PMID: 28163129 DOI: 10.1016/j.ijbiomac.2017.01.133] [Citation(s) in RCA: 100] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 01/25/2017] [Accepted: 01/31/2017] [Indexed: 02/08/2023]
Abstract
In the past decade, with the key biotechnological advancements, lignocellulosic materials have gained a particular importance. In serious consideration of global economic, environmental and energy issues, research scientists have been re-directing their interests in (re)-valorizing naturally occurring lignocellulosic-based materials. In this context, lignin-modifying enzymes (LMEs) have gained considerable attention in numerous industrial and biotechnological processes. However, their lower catalytic efficiencies and operational stabilities limit their practical and multipurpose applications in various sectors. Therefore, to expand the range of natural industrial biocatalysts e.g. LMEs, significant progress related to the enzyme biotechnology has appeared. Owing to the abundant lignocellulose availability along with LMEs in combination with the scientific advances in the biotechnological era, solid-phase biocatalysts can be economically tailored on a large scale. This review article outlines first briefly on the lignocellulose materials as a potential source for biotransformation into value-added products including composites, fine chemicals, nutraceutical, delignification, and enzymes. Comprehensive information is also given on the purification and characterization of LMEs to present their potential for the industrial and biotechnological sector.
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Affiliation(s)
- Muhammad Bilal
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - Muhammad Asgher
- Industrial Biotechnology Laboratory, Department of Biochemistry, University of Agriculture Faisalabad, Pakistan
| | - Hafiz M N Iqbal
- School of Engineering and Science, Tecnologico de Monterrey, Campus Monterrey, Ave. Eugenio Garza Sada 2501, Monterrey, N.L., CP 64849, Mexico.
| | - Hongbo Hu
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xuehong Zhang
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
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15
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Asgher M, Ahmad Z, Iqbal HMN. Bacterial cellulose-assisted de-lignified wheat straw-PVA based bio-composites with novel characteristics. Carbohydr Polym 2017; 161:244-252. [PMID: 28189235 DOI: 10.1016/j.carbpol.2017.01.032] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 01/01/2017] [Accepted: 01/06/2017] [Indexed: 02/08/2023]
Abstract
In the present study, in-house extracted ligninolytic consortium was used as a green catalyst to modify the pristine wheat straw through de-lignification. The ligninolytic consortium showed an enhanced level of de-lignification with a maximal cellulose exposure from 24% to 76.54% cellulose. The de-lignified wheat straw was further strengthened using bacterial cellulose integration. Subsequently, a well-known compression molding technique was used to develop bio-composites from a de-lignified and bacterially modified wheat straw in the presence of polyvinyl alcohol (PVA) and glycerol as a plasticizer. The newly developed bio-composites were characterized using a variety of analytical and imaging techniques including Fourier Transform Infra-Red Spectroscopy (FT-IR) and Scanning Electron Microscopy (SEM). Evidently, the characterization profile revealed a considerable improvement in the morphology, mechanical and water uptake features of the newly developed bio-composites. In summary, the improved characteristics of bacterial cellulose-assisted de-lignified wheat straw-PVA based bio-composites suggest a high potential of enzymatic treatment for biotechnological exploitability.
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Affiliation(s)
- Muhammad Asgher
- Industrial Biotechnology Laboratory, Department of Biochemistry, University of Agriculture Faisalabad, Pakistan
| | - Zanib Ahmad
- Industrial Biotechnology Laboratory, Department of Biochemistry, University of Agriculture Faisalabad, Pakistan
| | - Hafiz M N Iqbal
- School of Engineering and Science, Tecnologico de Monterrey, Campus Monterrey, Ave. Eugenio Garza Sada 2501, Monterrey, N. L. CP 64849, Mexico.
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16
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Insights into the nucleation role of cellulose crystals during crystallization of poly( β -hydroxybutyrate). Carbohydr Polym 2015; 134:508-15. [DOI: 10.1016/j.carbpol.2015.08.023] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Revised: 08/06/2015] [Accepted: 08/11/2015] [Indexed: 11/23/2022]
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17
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Iqbal HMN, Kyazze G, Locke IC, Tron T, Keshavarz T. Poly(3-hydroxybutyrate)-ethyl cellulose based bio-composites with novel characteristics for infection free wound healing application. Int J Biol Macromol 2015; 81:552-9. [PMID: 26314909 DOI: 10.1016/j.ijbiomac.2015.08.040] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 08/08/2015] [Accepted: 08/20/2015] [Indexed: 02/05/2023]
Abstract
A series of bio-composites including poly3-hydroxybutyrate [P(3HB)] grafted ethyl cellulose (EC) stated as P(3HB)-EC were successfully synthesised. Furthermore, natural phenols e.g., p-4-hydroxybenzoic acid (HBA) and ferulic acid (FA) were grafted onto the newly developed P(3HB)-EC-based bio-composites under laccase-assisted environment without the use of additional initiators or crosslinking agents. The phenol grafted bio-composites were critically evaluated for their antibacterial and biocompatibility features as well as their degradability in soil. In particular, the results of the antibacterial evaluation for the newly developed bio-composites indicated that 20HBA-g-P(3HB)-EC and 15FA-g-P(3HB)-EC bio-composites exerted strong bactericidal and bacteriostatic activity against Gram(-)E. coli NTCT 10418 as compared to the Gram(+)B. subtilis NCTC 3610. This study shows further that at various phenolic concentrations the newly synthesised bio-composites remained cytocompatible with human keratinocyte-like HaCaT skin cells, as 100% cell viability was recorded, in vitro. As for the degradation, an increase in the degradation rate was recorded during the soil burial analyses over a period of 42 days. These findings suggest that the reported bio-composites have great potential for use in wound healing; covering the affected skin area which may favour tissue repair over shorter periods.
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Affiliation(s)
- Hafiz M N Iqbal
- Applied Biotechnology Research Group, Department of Life Sciences, Faculty of Science and Technology, University of Westminster, London, United Kingdom.
| | - Godfrey Kyazze
- Applied Biotechnology Research Group, Department of Life Sciences, Faculty of Science and Technology, University of Westminster, London, United Kingdom
| | - Ian Charles Locke
- Applied Biotechnology Research Group, Department of Life Sciences, Faculty of Science and Technology, University of Westminster, London, United Kingdom
| | - Thierry Tron
- Aix-Marseille Université, CNRS, Centrale Marseille, iSm2 UMR 7313, 13397 Marseille, France
| | - Tajalli Keshavarz
- Applied Biotechnology Research Group, Department of Life Sciences, Faculty of Science and Technology, University of Westminster, London, United Kingdom.
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Iqbal HMN, Kyazze G, Locke IC, Tron T, Keshavarz T. Development of bio-composites with novel characteristics: Evaluation of phenol-induced antibacterial, biocompatible and biodegradable behaviours. Carbohydr Polym 2015; 131:197-207. [PMID: 26256176 DOI: 10.1016/j.carbpol.2015.05.046] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Revised: 05/21/2015] [Accepted: 05/24/2015] [Indexed: 02/08/2023]
Abstract
This paper describes a laccase-assisted grafting of gallic acid (GA) and thymol (T) as functional entities onto the previously developed P(3HB)-g-EC composite. GA-g-P(3HB)-g-EC and T-g-P(3HB)-g-EC bio-composites were prepared by laccase-assisted free radical-induced graft polymerisation of GA and T onto the P(3HB)-g-EC based composite using surface dipping and incorporation technique. The results of the antibacterial evaluation for the prepared composites indicated that 15GA-g-P(3HB)-g-EC, 15T-g-P(3HB)-g-EC and 20T-g-P(3HB)-g-EC composites possessed the strongest bacteriostatic and bactericidal activities against Gram-positive Bacillus subtilis NCTC 3610 and Staphylococcus aureus NCTC 6571 and Gram-negative Escherichia coli NTCT 10418 and Pseudomonas aeruginosa NCTC 10662 strains. In this study, we have also tested GA-g-P(3HB)-g-EC and T-g-P(3HB)-g-EC bio-composites for their ability to support and maintain multilineage differentiation of human keratinocyte-like (HaCaT) skin cells in-vitro. From the cytotoxicity results, the tested composites showed 100% viability and did not induce any adverse effect on a HaCaT's morphology. Finally, in soil burial evaluation, a progressive increase in the degradation rate of GA-g-P(3HB)-g-EC and T-g-P(3HB)-g-EC bio-composites was recorded with the passage of time up to 6 weeks. In summary, our current findings suggest that GA-g-P(3HB)-g-EC and T-g-P(3HB)-g-EC bio-composites are promising candidates for biomedical type applications such as skin regeneration, multiphasic tissue engineering and/or medical implants.
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Affiliation(s)
- Hafiz M N Iqbal
- Applied Biotechnology Research Group, Department of Life Sciences, Faculty of Science and Technology, University of Westminster, London W1 W 6UW, United Kingdom.
| | - Godfrey Kyazze
- Applied Biotechnology Research Group, Department of Life Sciences, Faculty of Science and Technology, University of Westminster, London W1 W 6UW, United Kingdom
| | - Ian C Locke
- Applied Biotechnology Research Group, Department of Life Sciences, Faculty of Science and Technology, University of Westminster, London W1 W 6UW, United Kingdom
| | - Thierry Tron
- Aix-Marseille Université, CNRS, Centrale Marseille, iSm2 UMR 7313, 13397 Marseille, France
| | - Tajalli Keshavarz
- Applied Biotechnology Research Group, Department of Life Sciences, Faculty of Science and Technology, University of Westminster, London W1 W 6UW, United Kingdom.
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Iqbal HMN, Kyazze G, Tron T, Keshavarz T. Laccase-Assisted Approach to Graft Multifunctional Materials of Interest: Keratin-EC Based Novel Composites and their Characterisation. MACROMOLECULAR MATERIALS AND ENGINEERING 2015. [DOI: 10.1002/mame.201500003] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Hafiz M. N. Iqbal
- Applied Biotechnology Research Group; Department of Life Sciences; Faculty of Science and Technology; University of Westminster; London W1W 6UW United Kingdom
| | - Godfrey Kyazze
- Applied Biotechnology Research Group; Department of Life Sciences; Faculty of Science and Technology; University of Westminster; London W1W 6UW United Kingdom
| | - Thierry Tron
- Aix Marseille Université; CNRS; Centrale Marseille; iSm2 UMR 7313 13397, Marseille France
| | - Tajalli Keshavarz
- Applied Biotechnology Research Group; Department of Life Sciences; Faculty of Science and Technology; University of Westminster; London W1W 6UW United Kingdom
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Iqbal HMN, Kyazze G, Locke IC, Tron T, Keshavarz T. In situ development of self-defensive antibacterial biomaterials: phenol-g-keratin-EC based bio-composites with characteristics for biomedical applications. GREEN CHEMISTRY 2015. [DOI: 10.1039/c5gc00715a] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Recently, the development of highly inspired biomaterials with multi-functional characteristics has gained considerable attention, especially in biomedical and other health-related areas of the modern world.
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Affiliation(s)
- Hafiz M. N. Iqbal
- Applied Biotechnology Research Group
- Department of Life Sciences
- Faculty of Science and Technology
- University of Westminster
- London W1W 6UW
| | - Godfrey Kyazze
- Applied Biotechnology Research Group
- Department of Life Sciences
- Faculty of Science and Technology
- University of Westminster
- London W1W 6UW
| | - Ian Charles Locke
- Applied Biotechnology Research Group
- Department of Life Sciences
- Faculty of Science and Technology
- University of Westminster
- London W1W 6UW
| | - Thierry Tron
- Aix Marseille Université
- CNRS
- Centrale Marseille
- iSm2 UMR 7313
- Marseille
| | - Tajalli Keshavarz
- Applied Biotechnology Research Group
- Department of Life Sciences
- Faculty of Science and Technology
- University of Westminster
- London W1W 6UW
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21
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Iqbal HMN, Kyazze G, Tron T, Keshavarz T. “One-pot” synthesis and characterisation of novel P(3HB)–ethyl cellulose based graft composites through lipase catalysed esterification. Polym Chem 2014. [DOI: 10.1039/c4py00857j] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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