1
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Basak S, Subramanian B, Thirumurugan R, Saleena LM. PHB Production by Bacillus megaterium LSRB 0103 Using Cornstarch and Urea. Curr Microbiol 2024; 81:139. [PMID: 38613599 DOI: 10.1007/s00284-024-03667-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 03/16/2024] [Indexed: 04/15/2024]
Abstract
Polyhydroxybutyrates (PHBs) are biopolymers that are good green alternative for synthetic carbon-based polymers, and are also one of the most researched members of the Polyhydroxyalkanoates (PHA) family. In this study, a gram-positive bacterial strain Bacillus megaterium LSRB 0103 was isolated from Pallikaranai Marshland, Chennai, India. Primary screening using Sudan Black dye revealed the presence of intracellular PHB granules. Minimal Davis Media (MDM) which was used or PHB production gave a yield of 0.7107 g/L. Subsequently, using response surface methodology (RSM), a central composite design (CCD) model was designed for media optimization having cornstarch, urea, and pH as independent variables. The findings of the CCD model were fitted into a second-order polynomial equation. The RSM model predicted the maximum PHB yield of 0.93 g/L, at these independent variable levels, cornstarch, 5 g/L; urea, 2.1 g/L; and pH 7.0; while the experimental PHB yield was 0.94 g/L, with a percentage error of 1.1%. This study is the first-time report of production of PHB by Bacillus megaterium using cornstarch and urea as substrate.
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Affiliation(s)
- Souvik Basak
- Department of Biotechnology, School of Bioengineering, College of Engineering and Technology, SRM Institute of Science and Technology, SRM Nagar, Kattankulathur, Kanchipuram, Chennai, Tamil Nadu, 603203, India
| | - Bhargavi Subramanian
- Department of Biotechnology, School of Bioengineering, College of Engineering and Technology, SRM Institute of Science and Technology, SRM Nagar, Kattankulathur, Kanchipuram, Chennai, Tamil Nadu, 603203, India
| | - Rithanya Thirumurugan
- Department of Biotechnology, School of Bioengineering, College of Engineering and Technology, SRM Institute of Science and Technology, SRM Nagar, Kattankulathur, Kanchipuram, Chennai, Tamil Nadu, 603203, India
| | - Lilly M Saleena
- Department of Biotechnology, School of Bioengineering, College of Engineering and Technology, SRM Institute of Science and Technology, SRM Nagar, Kattankulathur, Kanchipuram, Chennai, Tamil Nadu, 603203, India.
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2
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Mai J, Kockler K, Parisi E, Chan CM, Pratt S, Laycock B. Synthesis and physical properties of polyhydroxyalkanoate (PHA)-based block copolymers: A review. Int J Biol Macromol 2024; 263:130204. [PMID: 38365154 DOI: 10.1016/j.ijbiomac.2024.130204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 01/15/2024] [Accepted: 02/13/2024] [Indexed: 02/18/2024]
Abstract
Polyhydroxyalkanoates (PHAs) are a group of natural polyesters that are synthesised by microorganisms. In general, their thermoplasticity and (in some forms) their elasticity makes them attractive alternatives to petrochemical-derived polymers. However, the high crystallinity of some PHAs - such as poly(3-hydroxybutyrate) (P3HB) - results in brittleness and a narrow processing window for applications such as packaging. The production of copolymeric PHA materials is one approach to improving the mechanical and thermal properties of PHAs. Another solution is the manufacture of PHA-based block copolymers. The incorporation of different polymer and copolymer blocks coupled to PHA, and the resulting tailorable microstructure of these block copolymers, can result in a step-change improvement in PHA-based material properties. A range of production strategies for PHA-based block copolymers has been reported in the literature, including biological production and chemical synthesis. Biological production is typically less controllable, with products of a broad molecular weight and compositional distribution, unless finely controlled using genetically modified organisms. By contrast, chemical synthesis delivers relatively controllable block structures and narrowly defined compositions. This paper reviews current knowledge in the areas of the production and properties of PHA-based block copolymers, and highlights knowledge gaps and future potential areas of research.
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Affiliation(s)
- Jingjing Mai
- Fujian Normal University, College of Environmental and Resource Sciences, College of Carbon Neutral Modern Industry, Fuzhou, Fujian 350000, China
| | - Katrin Kockler
- The University of Queensland, School of Chemical Engineering, St Lucia, Brisbane, Queensland 4072, Australia
| | - Emily Parisi
- Parisi Technologies, LLC Portland, Oregon, United States
| | - Clement Matthew Chan
- The University of Queensland, School of Chemical Engineering, St Lucia, Brisbane, Queensland 4072, Australia
| | - Steven Pratt
- The University of Queensland, School of Chemical Engineering, St Lucia, Brisbane, Queensland 4072, Australia
| | - Bronwyn Laycock
- The University of Queensland, School of Chemical Engineering, St Lucia, Brisbane, Queensland 4072, Australia.
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3
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Jin A, del Valle LJ, Puiggalí J. Copolymers and Blends Based on 3-Hydroxybutyrate and 3-Hydroxyvalerate Units. Int J Mol Sci 2023; 24:17250. [PMID: 38139077 PMCID: PMC10743438 DOI: 10.3390/ijms242417250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Revised: 11/29/2023] [Accepted: 12/05/2023] [Indexed: 12/24/2023] Open
Abstract
This review presents a comprehensive update of the biopolymer poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV), emphasizing its production, properties, and applications. The overall biosynthesis pathway of PHBV is explored in detail, highlighting recent advances in production techniques. The inherent physicochemical properties of PHBV, along with its degradation behavior, are discussed in detail. This review also explores various blends and composites of PHBV, demonstrating their potential for a range of applications. Finally, the versatility of PHBV-based materials in multiple sectors is examined, emphasizing their increasing importance in the field of biodegradable polymers.
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Affiliation(s)
- Anyi Jin
- Departament d’Enginyeria Química, Universitat Politècnica de Catalunya, EEBE, Av. Eduard Maristany 10-14, 08019 Barcelona, Spain; (A.J.); (L.J.d.V.)
- Venvirotech Biotechnology S.L., Santa Perpètua de Mogoda, 08130 Barcelona, Spain
| | - Luis J. del Valle
- Departament d’Enginyeria Química, Universitat Politècnica de Catalunya, EEBE, Av. Eduard Maristany 10-14, 08019 Barcelona, Spain; (A.J.); (L.J.d.V.)
- Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, Campus Diagonal-Besòs, Av. Eduard Maristany 10-14, 08019 Barcelona, Spain
| | - Jordi Puiggalí
- Departament d’Enginyeria Química, Universitat Politècnica de Catalunya, EEBE, Av. Eduard Maristany 10-14, 08019 Barcelona, Spain; (A.J.); (L.J.d.V.)
- Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, Campus Diagonal-Besòs, Av. Eduard Maristany 10-14, 08019 Barcelona, Spain
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4
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Song L, Wang M, Yu D, Li Y, Yu H, Han X. Enhancing Production of Medium-Chain-Length Polyhydroxyalkanoates from Pseudomonas sp. SG4502 by tac Enhancer Insertion. Polymers (Basel) 2023; 15:polym15102290. [PMID: 37242866 DOI: 10.3390/polym15102290] [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: 04/07/2023] [Revised: 05/09/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023] Open
Abstract
Pseudomonas sp. SG4502 screened from biodiesel fuel by-products can synthesize medium-chain-length polyhydroxyalkanoates (mcl-PHAs) using glycerol as a substrate. It contains a typical PHA class II synthase gene cluster. This study revealed two genetic engineering methods for improving the mcl-PHA accumulation capacity of Pseudomonas sp. SG4502. One way was to knock out the PHA-depolymerase phaZ gene, the other way was to insert a tac enhancer into the upstream of the phaC1/phaC2 genes. Yields of mcl-PHAs produced from 1% sodium octanoate by +(tac-phaC2) and ∆phaZ strains were enhanced by 53.8% and 23.1%, respectively, compared with those produced by the wild-type strain. The increase in mcl-PHA yield from +(tac-phaC2) and ∆phaZ was due to the transcriptional level of the phaC2 and phaZ genes, as determined by RT-qPCR (the carbon source was sodium octanoate). 1H-NMR results showed that the synthesized products contained 3-hydroxyoctanoic acid (3HO), 3-hydroxydecanoic acid (3HD) and 3-hydroxydodecanoic acid (3HDD) units, which is consistent with those synthesized by the wild-type strain. The size-exclusion chromatography by GPC of mcl-PHAs from the (∆phaZ), +(tac-phaC1) and +(tac-phaC2) strains were 2.67, 2.52 and 2.60, respectively, all of which were lower than that of the wild-type strain (4.56). DSC analysis showed that the melting temperature of mcl-PHAs produced by recombinant strains ranged from 60 °C to 65 °C, which was lower than that of the wild-type strain. Finally, TG analysis showed that the decomposition temperature of mcl-PHAs synthesized by the (∆phaZ), +(tac-phaC1) and +(tac-phaC2) strains was 8.4 °C, 14.7 °C and 10.1 °C higher than that of the wild-type strain, respectively.
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Affiliation(s)
- Linxin Song
- International Cooperation Research Center of China for New Germplasm Breeding of Edible Mushrooms, Jilin Agricultural University, Changchun 130118, China
- Jilin Province Key Laboratory of Fungal Phenomics, Jilin Agricultural University, Changchun 130118, China
| | - Ming Wang
- School of Life Science and Technology, Changchun University of Science and Technology, Changchun 130022, China
| | - Dengbin Yu
- International Cooperation Research Center of China for New Germplasm Breeding of Edible Mushrooms, Jilin Agricultural University, Changchun 130118, China
- Jilin Province Key Laboratory of Fungal Phenomics, Jilin Agricultural University, Changchun 130118, China
| | - Yu Li
- International Cooperation Research Center of China for New Germplasm Breeding of Edible Mushrooms, Jilin Agricultural University, Changchun 130118, China
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
| | - Hongwen Yu
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
| | - Xuerong Han
- International Cooperation Research Center of China for New Germplasm Breeding of Edible Mushrooms, Jilin Agricultural University, Changchun 130118, China
- School of Life Science and Technology, Changchun University of Science and Technology, Changchun 130022, China
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Tang X, Shi C, Zhang Z, Chen EY. Crystalline aliphatic polyesters from eight‐membered cyclic (di)esters. JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1002/pol.20220418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Xiaoyan Tang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering Peking University Beijing China
- Department of Chemistry Colorado State University Fort Collins Colorado USA
| | - Changxia Shi
- Department of Chemistry Colorado State University Fort Collins Colorado USA
| | - Zhen Zhang
- Department of Chemistry Colorado State University Fort Collins Colorado USA
| | - Eugene Y.‐X. Chen
- Department of Chemistry Colorado State University Fort Collins Colorado USA
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Eronen-Rasimus EL, Näkki PP, Kaartokallio HP. Degradation Rates and Bacterial Community Compositions Vary among Commonly Used Bioplastic Materials in a Brackish Marine Environment. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:15760-15769. [PMID: 36269217 PMCID: PMC9671047 DOI: 10.1021/acs.est.2c06280] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Plastic pollution threatens both terrestrial and aquatic ecosystems. As a result of the pressures of replacing oil-based materials and reducing the accumulation of litter in the environment, the use of bioplastics is increasing, despite little being known about their accurate biodegradation in natural conditions. Here, we investigated the weight attrition and degradation behavior of four different bioplastic materials compared to conventional oil-based polyethylene during a 1-year in situ incubation in the brackish Baltic Sea and in controlled 1 month biodegradation experiments in the laboratory. Bacterial communities were also investigated to verify whether putative plastic-degrading bacteria are enriched on bioplastics. Poly-l-lactic acid showed no signs of degradation, whereas poly(3-hydroxybutyrate/3-hydroxyvalerate) (PHB/HV), plasticized starch (PR), and cellulose acetate (CA) degraded completely or almost completely during 1-year in situ incubations. In accordance, bacterial taxa potentially capable of using complex carbon substrates and belonging, e.g., to class Gammaproteobacteria were significantly enriched on PHB/HV, PR, and CA. An increase in gammaproteobacterial abundance was also observed in the biodegradation experiments. The results show substantial differences in the persistence and biodegradation rates among bioplastics, thus highlighting the need for carefully selecting materials for applications with risk of becoming marine litter.
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Affiliation(s)
- Eeva L. Eronen-Rasimus
- Department
of Microbiology, University of Helsinki, Viikinkaari 9, 00790 Helsinki, Finland
- Marine
Research Centre, Finnish Environment Institute, Agnes Sjöbergin katu 2, 00790 Helsinki, Finland
- E-mail:
| | - Pinja P. Näkki
- Marine
Research Centre, Finnish Environment Institute, Agnes Sjöbergin katu 2, 00790 Helsinki, Finland
| | - Hermanni P. Kaartokallio
- Marine
Research Centre, Finnish Environment Institute, Agnes Sjöbergin katu 2, 00790 Helsinki, Finland
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7
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Stereoselective synthesis of biodegradable polymers by salen-type metal catalysts. Sci China Chem 2022. [DOI: 10.1007/s11426-022-1377-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Khan HM, Liao X, Sheikh BA, Wang Y, Su Z, Guo C, Li Z, Zhou C, Cen Y, Kong Q. Smart biomaterials and their potential applications in tissue engineering. J Mater Chem B 2022; 10:6859-6895. [PMID: 36069198 DOI: 10.1039/d2tb01106a] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Smart biomaterials have been rapidly advancing ever since the concept of tissue engineering was proposed. Interacting with human cells, smart biomaterials can play a key role in novel tissue morphogenesis. Various aspects of biomaterials utilized in or being sought for the goal of encouraging bone regeneration, skin graft engineering, and nerve conduits are discussed in this review. Beginning with bone, this study summarizes all the available bioceramics and materials along with their properties used singly or in conjunction with each other to create scaffolds for bone tissue engineering. A quick overview of the skin-based nanocomposite biomaterials possessing antibacterial properties for wound healing is outlined along with skin regeneration therapies using infrared radiation, electrospinning, and piezoelectricity, which aid in wound healing. Furthermore, a brief overview of bioengineered artificial skin grafts made of various natural and synthetic polymers has been presented. Finally, by examining the interactions between natural and synthetic-based biomaterials and the biological environment, their strengths and drawbacks for constructing peripheral nerve conduits are highlighted. The description of the preclinical outcome of nerve regeneration in injury healed with various natural-based conduits receives special attention. The organic and synthetic worlds collide at the interface of nanomaterials and biological systems, producing a new scientific field including nanomaterial design for tissue engineering.
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Affiliation(s)
- Haider Mohammed Khan
- Department of Orthopedics, West China Hospital, Sichuan University, 610041, Chengdu, China.
| | - Xiaoxia Liao
- Department of Burn and Plastic Surgery, West China School of Medicine, West China Hospital, Sichuan University, 610041, Chengdu, China.
| | - Bilal Ahmed Sheikh
- Department of Orthopedics, West China Hospital, Sichuan University, 610041, Chengdu, China.
| | - Yixi Wang
- Department of Burn and Plastic Surgery, West China School of Medicine, West China Hospital, Sichuan University, 610041, Chengdu, China.
| | - Zhixuan Su
- College of Biomedical Engineering, Sichuan University, Chengdu 610064, China.,National Engineering Research Centre for Biomaterials, Sichuan University, Chengdu 610064, China.
| | - Chuan Guo
- Department of Orthopedics, West China Hospital, Sichuan University, 610041, Chengdu, China.
| | - Zhengyong Li
- Department of Burn and Plastic Surgery, West China School of Medicine, West China Hospital, Sichuan University, 610041, Chengdu, China.
| | - Changchun Zhou
- College of Biomedical Engineering, Sichuan University, Chengdu 610064, China.,National Engineering Research Centre for Biomaterials, Sichuan University, Chengdu 610064, China.
| | - Ying Cen
- Department of Burn and Plastic Surgery, West China School of Medicine, West China Hospital, Sichuan University, 610041, Chengdu, China.
| | - Qingquan Kong
- Department of Orthopedics, West China Hospital, Sichuan University, 610041, Chengdu, China.
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9
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Mohammed S, Ray L. Polyhydroxyalkanoate recovery from newly screened Bacillus sp. LPPI-18 using various methods of extraction from Loktak Lake sediment sample. J Genet Eng Biotechnol 2022; 20:115. [PMID: 35932435 PMCID: PMC9357249 DOI: 10.1186/s43141-022-00392-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 07/04/2022] [Indexed: 11/10/2022]
Abstract
BACKGROUND Nowadays, the conventional plastic wastes are very challenging to environments and its production cost also creates an economic crisis due to petrochemical-based plastic. In order to solve this problem, the current studies were aimed at screening and characterizing these polyhydroxyalkanoate (PHA)-producing isolates and evaluating the suitability of some carbon source for newly screened PHA-producing isolates. MATERIAL AND METHODS Some carbon sources such as D-fructose, glucose, molasses, D-ribose and sucrose were evaluated for PHA production. Data were analyzed using SPSS version 20. The 16SrRNA gene sequence of these isolates was performed. These newly isolated taxa were related to Bacillus species. It was designated as Bacillus sp. LPPI-18 and affiliated Bacillus cereus ATCC 14577T (AE01687) (99.10%). Paenibacillus sp. 172 (AF273740.1) was used as an outgroup. RESULTS Bacillus sp. LPPI-18 is a gram-positive, rod-shaped, endospore former, and citrate test positive. This isolate showed positive for amylase, catalase, pectinase, and protease test. They produced intracellular PHA granules when this isolate was stained with Sudan Black B (SBB) and Nile blue A (NBA) preliminary and specific staining dyes, respectively. Both temperature and pH used to affect polyhydroxyalkanoates (PHA) productivity. Bacteria are able to reserve PHA in the form of granules during stress conditions. This isolate produces only when supplied with carbon sources. More PHA contents (PCs) were obtained from glucose, molasses, and D-fructose. In this regard, the maximum mean value of PC was obtained from glucose (40.55±0.7%) and the minimum was obtained from D-ribose (12.4±1.4%). Great variations (P≤0.05) of PCs were observed among glucose and sucrose, molasses and sucrose, and D-fructose and sucrose carbon sources for PHA productivity (PP) of cell dry weight (CDW) g/L. After extraction, PHA film was produced for this typical isolate using glucose as a sole carbon source. Fourier transform infrared spectrum was performed for this isolate and showed the feature of polyester at 1719.64 to 1721.16 wavelengths for these extracted samples. The peak of fingerprinting (band of carboxylic acid group) at this wavelength is a characteristic feature of polyhydroxybutyrate (PHB) and corresponds to the ester functional group (C=O). CONCLUSION In this study, newly identified Bacillus sp. LPPI-18 is found to be producing biodegradable polymers that are used to replace highly pollutant conventional plastic polymers. This isolate is also used to employ certain cost-effective carbon sources for the production of PHA polymers.
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Affiliation(s)
- Seid Mohammed
- Department of Applied Biology, SoANS, Adama Science and Technology University, Oromia, Ethiopia. .,School of Law, KIIT University, Bhubaneswar, Odisha, 751024, India.
| | - Lopamudra Ray
- School of Law, KIIT University, Bhubaneswar, Odisha, 751024, India.,School of Biotechnology, KIIT University, Bhubaneswar, Odisha, 751024, India
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10
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Puri A, Bajaj A, Singh Y, Lal R. Harnessing taxonomically diverse and metabolically versatile genus Paracoccus for bioplastic synthesis and xenobiotic biodegradation. J Appl Microbiol 2022; 132:4208-4224. [PMID: 35294092 DOI: 10.1111/jam.15530] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Revised: 03/11/2022] [Accepted: 03/12/2022] [Indexed: 11/26/2022]
Abstract
The genus Paracoccus represents a taxonomically diverse group comprising more than 80 novel species isolated from various pristine and polluted environments. The species are characterized as coccoid shaped Gram-negative bacteria with versatile metabolic attributes and classified as autotrophs, heterotrophs and/or methylotrophs. Present study highlights the up-to-date global taxonomic diversity and critically discusses the significance of genome analysis for identifying the genomic determinants related to functional attributes mainly bioplastic synthesis and biodegradation potential that makes these isolates commercially viable. The analysis accentuates polyphasic and genomic attributes of Paracoccus spp. which could be harnessed for commercial applications and emphasizes the need of integrating genome based computational analysis for evolutionary species and functional diversification. The work reflects on the underexplored genetic potential for bioplastic synthesis which can be harnessed using advanced genomic methods. It also underlines the degradation potential and possible use of naturally-occurring pollutant-degrading Paracoccus isolates for development of biodegradation system and efficient removal of contaminants. The work contemplates plausible use of such potent isolates to establish the plant-microbe interaction, contributing towards contaminated land reclamation. Overall; the work signifies need and application of genome analysis to identify and explore prospective potential of Paracoccus spp. for environmental application towards achieving sustainability.
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Affiliation(s)
- Akshita Puri
- Department of Zoology, University of Delhi, Delhi, India.,Present addresses: P.G.T.D, Zoology, R.T.M Nagpur University, Nagpur, 440033, India
| | - Abhay Bajaj
- Department of Zoology, University of Delhi, Delhi, India.,Present addresses: CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), Nehru Marg, Nagpur, 440020, India
| | - Yogendra Singh
- Department of Zoology, University of Delhi, Delhi, India
| | - Rup Lal
- Department of Zoology, University of Delhi, Delhi, India.,Present addresses: NASI Senior Scientist Platinum Jubilee Fellow, The Energy and Resources Institute Darbari Seth Block, IHC Complex, Lodhi Road New Delhi-110003, India
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11
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Volova TG, Kurachenko NL, Bopp VL, Thomas S, Demidenko AV, Kiselev EG, Baranovsky SV, Sukovatyi AG, Zhila NO, Shishatskaya EI. Assessment of the efficacy of slow-release formulations of the tribenuron-methyl herbicide in field-grown spring wheat. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:20249-20264. [PMID: 34727312 DOI: 10.1007/s11356-021-17195-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 10/21/2021] [Indexed: 06/13/2023]
Abstract
The efficacy of slow-release formulations of tribenuron-methyl (TBM) embedded in the matrix of degradable poly(3-hydroxybutyrate) blended with birch wood flour [polymer/wood flour/herbicide 50/30/20 wt.%] was compared with the efficacy of TBM as the active ingredient of the Mortira commercial formulation, which was applied as post-emergence spray to treat spring wheat cv. Novosibirskaya 15. The study was conducted in Central Siberia (in the environs of the city of Krasnoyarsk, Russia) from May to August 2020. The biological efficacy of the embedded TBM was 92.3%, which was considerably higher than the biological efficacy of the Mortira formulation used as the post-emergence spray (15.4%). The embedding of TBM into degradable blended matrix enabled long-duration functioning of this unstable herbicide in soil. The sensitivity of weed plants to TBM differed depending on the species. TBM was more effective against A. retroflexus and A. blitoides, which were killed at an earlier stage, than against C. album and G. aparine, whose percentage increased in the earlier stage and which were controlled by the herbicide less effectively and at later stages. On the plot treated with the embedded herbicide, the parameters of the wheat yield structure were the best, and the total yield was the highest: 3360 ± 40 kg/ha versus 3250 ± 50 kg/ha in the group of plants sprayed with the Mortira formulation. The grain produced in all groups was of high quality and was classified as Grade 1 food grain. The highest quality parameters (grain hectoliter mass, gluten, and protein contents) were obtained in the group of plants treated with the embedded herbicide. The study of the embedded TBM confirmed the high efficacy of the experimental formulation.
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Affiliation(s)
- Tatiana G Volova
- Siberian Federal University, 79 Svobodnyi av., Krasnoyarsk, 660041, Russia.
- Institute of Biophysics SB RAS, Federal Research Center "Krasnoyarsk Science Center SB RAS", 50/50 Akademgorodok, Krasnoyarsk, 660036, Russia.
| | | | - Valentina L Bopp
- Krasnoyarsk State Agrarian University, 90 Mir av., Krasnoyarsk, 660049, Russia
| | - Sabu Thomas
- Siberian Federal University, 79 Svobodnyi av., Krasnoyarsk, 660041, Russia
- International and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, Kerala, 686560, India
| | - Aleksey V Demidenko
- Siberian Federal University, 79 Svobodnyi av., Krasnoyarsk, 660041, Russia
- Institute of Biophysics SB RAS, Federal Research Center "Krasnoyarsk Science Center SB RAS", 50/50 Akademgorodok, Krasnoyarsk, 660036, Russia
| | - Evgeniy G Kiselev
- Siberian Federal University, 79 Svobodnyi av., Krasnoyarsk, 660041, Russia
- Institute of Biophysics SB RAS, Federal Research Center "Krasnoyarsk Science Center SB RAS", 50/50 Akademgorodok, Krasnoyarsk, 660036, Russia
| | | | - Aleksey G Sukovatyi
- Siberian Federal University, 79 Svobodnyi av., Krasnoyarsk, 660041, Russia
- Institute of Biophysics SB RAS, Federal Research Center "Krasnoyarsk Science Center SB RAS", 50/50 Akademgorodok, Krasnoyarsk, 660036, Russia
| | - Natalia O Zhila
- Siberian Federal University, 79 Svobodnyi av., Krasnoyarsk, 660041, Russia
- Institute of Biophysics SB RAS, Federal Research Center "Krasnoyarsk Science Center SB RAS", 50/50 Akademgorodok, Krasnoyarsk, 660036, Russia
| | - Ekaterina I Shishatskaya
- Siberian Federal University, 79 Svobodnyi av., Krasnoyarsk, 660041, Russia
- Institute of Biophysics SB RAS, Federal Research Center "Krasnoyarsk Science Center SB RAS", 50/50 Akademgorodok, Krasnoyarsk, 660036, Russia
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12
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Role of Plasticizers on PHB/bio-TPE Blends Compatibilized by Reactive Extrusion. MATERIALS 2022; 15:ma15031226. [PMID: 35161170 PMCID: PMC8840646 DOI: 10.3390/ma15031226] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 01/18/2022] [Accepted: 01/27/2022] [Indexed: 02/01/2023]
Abstract
Poly(hydroxybutyrate) (PHB) is a biopolymer biologically synthesized by controlled bacterial fermentation from a wide variety of microorganisms. PHB is proposed as a potential green alternative to commonly used plastics in packaging, due to its biodegradability and biocompatibility. However, if PHB is to replace commodities, it has some limitations regarding its thermo-mechanical performance to overcome. Among them are its critically the low toughness values at room temperature and poor thermoforming ability. With the aim of overcoming these weaknesses, in this work, blends of PHB with the addition of a biodegradable thermoplastic elastomer (bio-TPE) were prepared and evaluated. Films of such compounds were made by cast extrusion. In order to enhance the compatibility of both polymers during the extrusion process, three different reactive agents (poly-hexametylene diisocianate, triglycidyl isocyanurate, and Joncryl® ADR-4368) were assessed. The morphology and mechanical- and thermal properties of the films obtained were analyzed. In addition, the thermoforming ability of the produced films was evaluated. The results show that the plasticizers present in the bio-TPE interacted with the reactive agents, making them chemical competitors and altering the outcome of the blends.
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Influence of Chitin Nanocrystals on the Crystallinity and Mechanical Properties of Poly(hydroxybutyrate) Biopolymer. Polymers (Basel) 2022; 14:polym14030562. [PMID: 35160551 PMCID: PMC8840629 DOI: 10.3390/polym14030562] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 01/24/2022] [Accepted: 01/26/2022] [Indexed: 11/16/2022] Open
Abstract
This study focuses on the use of pilot-scale produced polyhydroxy butyrate (PHB) biopolymer and chitin nanocrystals (ChNCs) in two different concentrated (1 and 5 wt.%) nanocomposites. The nanocomposites were compounded using a twin-screw extruder and calendered into sheets. The crystallization was studied using polarized optical microscopy and differential scanning calorimetry, the thermal properties were studied using thermogravimetric analysis, the viscosity was studied using a shear rheometer, the mechanical properties were studied using conventional tensile testing, and the morphology of the prepared material was studied using optical microscopy and scanning electron microscopy. The results showed that the addition of ChNCs significantly affected the crystallization of PHB, resulting in slower crystallization, lower overall crystallinity, and smaller crystal size. Furthermore, the addition of ChNCs resulted in increased viscosity in the final formulations. The calendering process resulted in slightly aligned sheets and the nanocomposites with 5 wt.% ChNCs evaluated along the machine direction showed the highest mechanical properties, the strength increased from 24 to 33 MPa, while the transversal direction with lower initial strength at 14 MPa was improved to 21 MPa.
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Tang X, Shi C, Zhang Z, Chen EYX. Toughening Biodegradable Isotactic Poly(3-hydroxybutyrate) via Stereoselective Copolymerization of a Diolide and Lactones. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01199] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Xiaoyan Tang
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523-1872, United States
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Changxia Shi
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523-1872, United States
| | - Zhen Zhang
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523-1872, United States
| | - Eugene Y.-X. Chen
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523-1872, United States
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Sea-Ice Bacteria Halomonas sp. Strain 363 and Paracoccus sp. Strain 392 Produce Multiple Types of Poly-3-Hydroxyalkaonoic Acid (PHA) Storage Polymers at Low Temperature. Appl Environ Microbiol 2021; 87:e0092921. [PMID: 34160268 PMCID: PMC8357295 DOI: 10.1128/aem.00929-21] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Poly-3-hydroxyalkanoic acids (PHAs) are bacterial storage polymers commonly used in bioplastic production. Halophilic bacteria are industrially interesting organisms, as their salinity tolerance and psychrophilic nature lowers sterility requirements and subsequent production costs. We investigated PHA synthesis in two bacterial strains, Halomonas sp. 363 and Paracoccus sp. 392, isolated from Southern Ocean sea ice and elucidated the related PHA biopolymer accumulation and composition with various approaches, such as transcriptomics, microscopy, and chromatography. We show that both bacterial strains produce PHAs at 4°C when the availability of nitrogen and/or oxygen limited growth. The genome of Halomonas sp. 363 carries three phaC synthase genes and transcribes genes along three PHA pathways (I to III), whereas Paracoccus sp. 392 carries only one phaC gene and transcribes genes along one pathway (I). Thus, Halomonas sp. 363 has a versatile repertoire of phaC genes and pathways enabling production of both short- and medium-chain-length PHA products. IMPORTANCE Plastic pollution is one of the most topical threats to the health of the oceans and seas. One recognized way to alleviate the problem is to use degradable bioplastic materials in high-risk applications. PHA is a promising bioplastic material as it is nontoxic and fully produced and degraded by bacteria. Sea ice is an interesting environment for prospecting novel PHA-producing organisms, since traits advantageous to lower production costs, such as tolerance for high salinities and low temperatures, are common. We show that two sea-ice bacteria, Halomonas sp. 363 and Paracoccus sp. 392, are able to produce various types of PHA from inexpensive carbon sources. Halomonas sp. 363 is an especially interesting PHA-producing organism, since it has three different synthesis pathways to produce both short- and medium-chain-length PHAs.
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Sharma S, Sudhakara P, Singh J, Ilyas RA, Asyraf MRM, Razman MR. Critical Review of Biodegradable and Bioactive Polymer Composites for Bone Tissue Engineering and Drug Delivery Applications. Polymers (Basel) 2021; 13:2623. [PMID: 34451161 PMCID: PMC8399915 DOI: 10.3390/polym13162623] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 07/29/2021] [Accepted: 07/31/2021] [Indexed: 12/11/2022] Open
Abstract
In the determination of the bioavailability of drugs administered orally, the drugs' solubility and permeability play a crucial role. For absorption of drug molecules and production of a pharmacological response, solubility is an important parameter that defines the concentration of the drug in systemic circulation. It is a challenging task to improve the oral bioavailability of drugs that have poor water solubility. Most drug molecules are either poorly soluble or insoluble in aqueous environments. Polymer nanocomposites are combinations of two or more different materials that possess unique characteristics and are fused together with sufficient energy in such a manner that the resultant material will have the best properties of both materials. These polymeric materials (biodegradable and other naturally bioactive polymers) are comprised of nanosized particles in a composition of other materials. A systematic search was carried out on Web of Science and SCOPUS using different keywords, and 485 records were found. After the screening and eligibility process, 88 journal articles were found to be eligible, and hence selected to be reviewed and analyzed. Biocompatible and biodegradable materials have emerged in the manufacture of therapeutic and pharmacologic devices, such as impermanent implantation and 3D scaffolds for tissue regeneration and biomedical applications. Substantial effort has been made in the usage of bio-based polymers for potential pharmacologic and biomedical purposes, including targeted deliveries and drug carriers for regulated drug release. These implementations necessitate unique physicochemical and pharmacokinetic, microbiological, metabolic, and degradation characteristics of the materials in order to provide prolific therapeutic treatments. As a result, a broadly diverse spectrum of natural or artificially synthesized polymers capable of enzymatic hydrolysis, hydrolyzing, or enzyme decomposition are being explored for biomedical purposes. This summary examines the contemporary status of biodegradable naturally and synthetically derived polymers for biomedical fields, such as tissue engineering, regenerative medicine, bioengineering, targeted drug discovery and delivery, implantation, and wound repair and healing. This review presents an insight into a number of the commonly used tissue engineering applications, including drug delivery carrier systems, demonstrated in the recent findings. Due to the inherent remarkable properties of biodegradable and bioactive polymers, such as their antimicrobial, antitumor, anti-inflammatory, and anticancer activities, certain materials have gained significant interest in recent years. These systems are also actively being researched to improve therapeutic activity and mitigate adverse consequences. In this article, we also present the main drug delivery systems reported in the literature and the main methods available to impregnate the polymeric scaffolds with drugs, their properties, and their respective benefits for tissue engineering.
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Affiliation(s)
- Shubham Sharma
- Regional Centre for Extension and Development, CSIR-Central Leather Research Institute, Leather Complex, Kapurthala Road, Jalandhar 144021, India
- PhD Research Scholar, IK Gujral Punjab Technical University, Jalandhar-Kapurthala, Highway, VPO, Ibban 144603, India
| | - P. Sudhakara
- Regional Centre for Extension and Development, CSIR-Central Leather Research Institute, Leather Complex, Kapurthala Road, Jalandhar 144021, India
| | - Jujhar Singh
- IK Gujral Punjab Technical University, Jalandhar-Kapurthala, Highway, VPO, Ibban 144603, India;
| | - R. A. Ilyas
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Johor Bahru 81310, Malaysia;
- Centre for Advanced Composite Materials, Universiti Teknologi Malaysia, Johor Bahru 81310, Malaysia
| | - M. R. M. Asyraf
- Department of Aerospace Engineering, Faculty of Engineering, Universiti Putra Malaysia (UPM), Serdang 43400, Malaysia
| | - M. R. Razman
- Research Centre for Sustainability Science and Governance (SGK), Institute for Environment and Development (LESTARI), Universiti Kebangsaan Malaysia (UKM), Bangi 43600, Malaysia
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17
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Microbial cell factories for the production of polyhydroxyalkanoates. Essays Biochem 2021; 65:337-353. [PMID: 34132340 DOI: 10.1042/ebc20200142] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 05/14/2021] [Accepted: 05/26/2021] [Indexed: 12/20/2022]
Abstract
Pollution caused by persistent petro-plastics is the most pressing problem currently, with 8 million tons of plastic waste dumped annually in the oceans. Plastic waste management is not systematized in many countries, because it is laborious and expensive with secondary pollution hazards. Bioplastics, synthesized by microorganisms, are viable alternatives to petrochemical-based thermoplastics due to their biodegradable nature. Polyhydroxyalkanoates (PHAs) are a structurally and functionally diverse group of storage polymers synthesized by many microorganisms, including bacteria and Archaea. Some of the most important PHA accumulating bacteria include Cupriavidus necator, Burkholderia sacchari, Pseudomonas sp., Bacillus sp., recombinant Escherichia coli, and certain halophilic extremophiles. PHAs are synthesized by specialized PHA polymerases with assorted monomers derived from the cellular metabolite pool. In the natural cycle of cellular growth, PHAs are depolymerized by the native host for carbon and energy. The presence of these microbial PHA depolymerases in natural niches is responsible for the degradation of bioplastics. Polyhydroxybutyrate (PHB) is the most common PHA with desirable thermoplastic-like properties. PHAs have widespread applications in various industries including biomedicine, fine chemicals production, drug delivery, packaging, and agriculture. This review provides the updated knowledge on the metabolic pathways for PHAs synthesis in bacteria, and the major microbial hosts for PHAs production. Yeasts are presented as a potential candidate for industrial PHAs production, with their high amenability to genetic engineering and the availability of industrial-scale technology. The major bottlenecks in the commercialization of PHAs as an alternative for plastics and future perspectives are also critically discussed.
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Murugesan S, Iyyaswami R, J. Khandelwal P. Nonionic surfactant-based cloud point extraction of polyhydroxyalkanoate from the fermentation crude in a rotating disc contactor. SEP SCI TECHNOL 2021. [DOI: 10.1080/01496395.2020.1781895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Sivananth Murugesan
- Department of Chemical Engineering, National Institute of Technology Karnataka, Surathkal, Mangalore, India
| | - Regupathi Iyyaswami
- Department of Chemical Engineering, National Institute of Technology Karnataka, Surathkal, Mangalore, India
| | - Palash J. Khandelwal
- Department of Chemical Engineering, National Institute of Technology Karnataka, Surathkal, Mangalore, India
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19
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Dutt Tripathi A, Paul V, Agarwal A, Sharma R, Hashempour-Baltork F, Rashidi L, Khosravi Darani K. Production of polyhydroxyalkanoates using dairy processing waste - A review. BIORESOURCE TECHNOLOGY 2021; 326:124735. [PMID: 33508643 DOI: 10.1016/j.biortech.2021.124735] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/12/2021] [Accepted: 01/14/2021] [Indexed: 06/12/2023]
Abstract
Bio-plastics are eco-friendly biopolymers finding tremendous application in the food and pharmaceutical industries. Bio-plastics have suitable physicochemical, mechanical properties, and do not cause any type of hazardous pollution upon disposal but have a high production cost. This can be minimized by screening potential bio-polymers producing strains, selecting inexpensive raw material, optimized cultivation conditions, and upstream processing. These bio-plastics specifically microbial-produced bio-polymers such as polyhydroxyalkanoates (PHAs) find application in food industries as packaging material owing to their desirable water barrier and gas permeability properties. The present review deals with the production, recovery, purification, characterization, and applications of PHAs. This is a comprehensive first review will also focus on different strategies adopted for efficient PHA production using dairy processing waste, its biosynthetic mechanism, metabolic engineering, kinetic aspects, and also biodegradability testing at the lab and pilot plant level. In addition to that, the authors will be emphasizing more on novel PHAs nanocomposites synthesis strategies and their commercial applicability.
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Affiliation(s)
- Abhishek Dutt Tripathi
- Department of Dairy Science and Food Technology, Institute of Agricultural Sciences, Banaras Hindu University, Uttar Pradesh, India
| | - Veena Paul
- Department of Dairy Science and Food Technology, Institute of Agricultural Sciences, Banaras Hindu University, Uttar Pradesh, India
| | - Aparna Agarwal
- Department of Food & Nutrition and Food Technology, Lady Irwin College, Sikandra Road, New Delhi 110001, India
| | - Ruchi Sharma
- Department of Agriculture and Environmental Sciences, National Institute of Food Technology Entrepreneurship and Management, Kundli, Sonepat, Haryana 131028, India
| | - Fataneh Hashempour-Baltork
- Department of Food Technology Research, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Science, P. O. Box: 19395-4741, Tehran, Iran
| | - Ladan Rashidi
- Department of Food and Agricultural Products, Food Technology and Agricultural Products Research Center, Standard Research Institute, Karaj, Iran
| | - Kianoush Khosravi Darani
- Department of Food Technology Research, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Science, P. O. Box: 19395-4741, Tehran, Iran.
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20
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Näkki P, Eronen-Rasimus E, Kaartokallio H, Kankaanpää H, Setälä O, Vahtera E, Lehtiniemi M. Polycyclic aromatic hydrocarbon sorption and bacterial community composition of biodegradable and conventional plastics incubated in coastal sediments. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 755:143088. [PMID: 33127152 DOI: 10.1016/j.scitotenv.2020.143088] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 09/27/2020] [Accepted: 10/13/2020] [Indexed: 05/12/2023]
Abstract
Resistant to degradation, plastic litter poses a long-term threat to marine ecosystems. Biodegradable materials have been developed to replace conventional plastics, but little is known of their impacts and degradation in marine environments. A 14-week laboratory experiment was conducted to investigate the sorption of polycyclic aromatic hydrocarbons (PAHs) to conventional (polystyrene PS and polyamide PA) and bio-based, biodegradable plastic films (cellulose acetate CA and poly-L-lactic acid PLLA), and to examine the composition of bacterial communities colonizing these materials. Mesoplastics (1 cm2) of these materials were incubated in sediment and seawater collected from two sites in the Gulf of Finland, on the coast of the highly urbanized area of Helsinki, Finland. PS sorbed more PAHs than did the other plastic types at both sites, and the concentration of PAHs was consistently and considerably smaller in plastics than in the sediment. In general, the plastic bacterial biofilms resembled those in the surrounding media (water and/or sediment). However, in the sediment incubations, the community composition on CA diverged from that of the other three plastic types and was enriched with Bacteroidia and potentially cellulolytic Spirochaetia at both sites. The results indicate that certain biodegradable plastics, such as CA, may harbour potential bioplastic-degrading communities and that PAH sorption capacity varies between polymer types. Since biodegradable plastics are presented as replacements for conventional plastics in applications with risk of ending up in the marine environment, the results highlight the need to carefully examine the environmental behaviour of each biodegradable plastic type before they are extensively introduced to the market.
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Affiliation(s)
- Pinja Näkki
- Tvärminne Zoological Station, University of Helsinki, J.A. Palménin tie 260, FI-10900 Hanko, Finland; Marine Research Centre, Finnish Environment Institute, Latokartanonkaari 11, FI-00790 Helsinki, Finland.
| | - Eeva Eronen-Rasimus
- Marine Research Centre, Finnish Environment Institute, Latokartanonkaari 11, FI-00790 Helsinki, Finland; Department of Microbiology, P.O. Box 56, FI-00014, University of Helsinki, Finland
| | - Hermanni Kaartokallio
- Marine Research Centre, Finnish Environment Institute, Latokartanonkaari 11, FI-00790 Helsinki, Finland
| | - Harri Kankaanpää
- Marine Research Centre, Finnish Environment Institute, Latokartanonkaari 11, FI-00790 Helsinki, Finland
| | - Outi Setälä
- Marine Research Centre, Finnish Environment Institute, Latokartanonkaari 11, FI-00790 Helsinki, Finland
| | - Emil Vahtera
- Urban Environment Division, City of Helsinki, P.O. Box 1, FI-00099 Helsinki, Finland
| | - Maiju Lehtiniemi
- Marine Research Centre, Finnish Environment Institute, Latokartanonkaari 11, FI-00790 Helsinki, Finland
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21
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Fornasari BE, Carta G, Gambarotta G, Raimondo S. Natural-Based Biomaterials for Peripheral Nerve Injury Repair. Front Bioeng Biotechnol 2020; 8:554257. [PMID: 33178670 PMCID: PMC7596179 DOI: 10.3389/fbioe.2020.554257] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 09/23/2020] [Indexed: 01/18/2023] Open
Abstract
Peripheral nerve injury treatment is a relevant problem because of nerve lesion high incidence and because of unsatisfactory regeneration after severe injuries, thus resulting in a reduced patient's life quality. To repair severe nerve injuries characterized by substance loss and to improve the regeneration outcome at both motor and sensory level, different strategies have been investigated. Although autograft remains the gold standard technique, a growing number of research articles concerning nerve conduit use has been reported in the last years. Nerve conduits aim to overcome autograft disadvantages, but they must satisfy some requirements to be suitable for nerve repair. A universal ideal conduit does not exist, since conduit properties have to be evaluated case by case; nevertheless, because of their high biocompatibility and biodegradability, natural-based biomaterials have great potentiality to be used to produce nerve guides. Although they share many characteristics with synthetic biomaterials, natural-based biomaterials should also be preferable because of their extraction sources; indeed, these biomaterials are obtained from different renewable sources or food waste, thus reducing environmental impact and enhancing sustainability in comparison to synthetic ones. This review reports the strengths and weaknesses of natural-based biomaterials used for manufacturing peripheral nerve conduits, analyzing the interactions between natural-based biomaterials and biological environment. Particular attention was paid to the description of the preclinical outcome of nerve regeneration in injury repaired with the different natural-based conduits.
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Affiliation(s)
- Benedetta E Fornasari
- Department of Clinical and Biological Sciences, University of Turin, Turin, Italy.,Neuroscience Institute Cavalieri Ottolenghi, University of Turin, Turin, Italy
| | - Giacomo Carta
- Department of Clinical and Biological Sciences, University of Turin, Turin, Italy.,Neuroscience Institute Cavalieri Ottolenghi, University of Turin, Turin, Italy
| | - Giovanna Gambarotta
- Department of Clinical and Biological Sciences, University of Turin, Turin, Italy.,Neuroscience Institute Cavalieri Ottolenghi, University of Turin, Turin, Italy
| | - Stefania Raimondo
- Department of Clinical and Biological Sciences, University of Turin, Turin, Italy.,Neuroscience Institute Cavalieri Ottolenghi, University of Turin, Turin, Italy
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22
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Castro LM, Foong CP, Higuchi-Takeuchi M, Morisaki K, Lopes EF, Numata K, Mota AJ. Microbial prospection of an Amazonian blackwater lake and whole-genome sequencing of bacteria capable of polyhydroxyalkanoate synthesis. Polym J 2020. [DOI: 10.1038/s41428-020-00424-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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23
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Tang X, Westlie AH, Caporaso L, Cavallo L, Falivene L, Chen EY. Biodegradable Polyhydroxyalkanoates by Stereoselective Copolymerization of Racemic Diolides: Stereocontrol and Polyolefin‐Like Properties. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201916415] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Xiaoyan Tang
- Department of Chemistry Colorado State University Fort Collins CO 80523-1872 USA
| | - Andrea H. Westlie
- Department of Chemistry Colorado State University Fort Collins CO 80523-1872 USA
| | - Lucia Caporaso
- Dipartimento di Chimica e Biologia Università di Salerno Via Papa Paolo Giovanni II 84084 Fisciano Italy
| | - Luigi Cavallo
- King Abdullah University of Science and Technology (KAUST) Physical Sciences and Engineering Division Kaust Catalysis Center Thuwal 23955-6900 Saudi Arabia
| | - Laura Falivene
- King Abdullah University of Science and Technology (KAUST) Physical Sciences and Engineering Division Kaust Catalysis Center Thuwal 23955-6900 Saudi Arabia
| | - Eugene Y.‐X. Chen
- Department of Chemistry Colorado State University Fort Collins CO 80523-1872 USA
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24
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Tang X, Westlie AH, Caporaso L, Cavallo L, Falivene L, Chen EYX. Biodegradable Polyhydroxyalkanoates by Stereoselective Copolymerization of Racemic Diolides: Stereocontrol and Polyolefin-Like Properties. Angew Chem Int Ed Engl 2020; 59:7881-7890. [PMID: 31991036 DOI: 10.1002/anie.201916415] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Indexed: 11/06/2022]
Abstract
Bacterial polyhydroxyalkanoates (PHAs) are a unique class of biodegradable polymers because of their biodegradability in ambient environments and structural diversity enabled by side-chain groups. However, the biosynthesis of PHAs is slow and expensive, limiting their broader applications as commodity plastics. To overcome such limitation, the catalyzed chemical synthesis of bacterial PHAs has been developed, using the metal-catalyzed stereoselective ring-opening (co)polymerization of racemic cyclic diolides (rac-8DLR , R=alkyl group). In this combined experimental and computational study, polymerization kinetics, stereocontrol, copolymerization characteristics, and the properties of the resulting PHAs have been examined. Most notably, stereoselective copolymerizations of rac-8DLMe with rac-8DLR (R=Et, Bu) have yielded high-molecular-weight, crystalline isotactic PHA copolymers that are hard, ductile, and tough plastics, and exhibit polyolefin-like thermal and mechanical properties.
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Affiliation(s)
- Xiaoyan Tang
- Department of Chemistry, Colorado State University, Fort Collins, CO, 80523-1872, USA
| | - Andrea H Westlie
- Department of Chemistry, Colorado State University, Fort Collins, CO, 80523-1872, USA
| | - Lucia Caporaso
- Dipartimento di Chimica e Biologia, Università di Salerno, Via Papa Paolo Giovanni II, 84084, Fisciano, Italy
| | - Luigi Cavallo
- King Abdullah University of Science and Technology (KAUST), Physical Sciences and Engineering Division, Kaust Catalysis Center, Thuwal, 23955-6900, Saudi Arabia
| | - Laura Falivene
- King Abdullah University of Science and Technology (KAUST), Physical Sciences and Engineering Division, Kaust Catalysis Center, Thuwal, 23955-6900, Saudi Arabia
| | - Eugene Y-X Chen
- Department of Chemistry, Colorado State University, Fort Collins, CO, 80523-1872, USA
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Shi M, Cheng T, Zou H, Zhang N, Huang J, Xian M. The Preparation and Biomedical Application of Biopolyesters. Mini Rev Med Chem 2019; 20:331-340. [PMID: 31644401 DOI: 10.2174/1389557519666191015211156] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 06/06/2019] [Accepted: 06/12/2019] [Indexed: 11/22/2022]
Abstract
Biopolyesters represent a large family that can be obtained by polymerization of variable bio-derived hydroxyalkanoic acids. The monomer composition, molecular weight of the biopolyesters can affect the properties and applications of the polyesters. The majority of biopolyesters can either be biosynthesized from natural biofeedstocks or semi-synthesized (biopreparation of monomers followed by the chemical polymerization of the monomers). With the fast development of synthetic biology and biosynthesis techniques, the biosynthesis of unnatural biopolyesters (like lactate containing and aromatic biopolyesters) with improved performance and function has been a tendency. The presence of novel preparation methods, novel monomer composition has also significantly affected the properties, functions and applications of the biopolyesters. Due to the properties of biodegradability and biocompatibility, biopolyesters have great potential in biomedical applications (as implanting or covering biomaterials, drug carriers). Moreover, biopolyesters can be fused with other functional ingredients to achieve novel applications or improved functions. This study summarizes and compares the updated preparation methods of representative biopolyesters, also introduces the current status and future trends of their applications in biomedical fields.
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Affiliation(s)
- Mengxun Shi
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.,Department of Chemical and Biological Engineering, Sir Robert Hadfield Building, The University of Sheffield, Sheffield S1 3JD, United Kingdom
| | - Tao Cheng
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.,CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China.,State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Huibin Zou
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.,CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
| | - Nan Zhang
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Jingling Huang
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Mo Xian
- CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
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Ranaivoarisoa TO, Singh R, Rengasamy K, Guzman MS, Bose A. Towards sustainable bioplastic production using the photoautotrophic bacterium Rhodopseudomonas palustris TIE-1. J Ind Microbiol Biotechnol 2019; 46:1401-1417. [PMID: 30927110 PMCID: PMC6791910 DOI: 10.1007/s10295-019-02165-7] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Accepted: 03/23/2019] [Indexed: 12/22/2022]
Abstract
Bacterial synthesis of polyhydroxybutyrates (PHBs) is a potential approach for producing biodegradable plastics. This study assessed the ability of Rhodopseudomonas palustris TIE-1 to produce PHBs under various conditions. We focused on photoautotrophy using a poised electrode (photoelectroautotrophy) or ferrous iron (photoferroautotrophy) as electron donors. Growth conditions were tested with either ammonium chloride or dinitrogen gas as the nitrogen source. Although TIE-1's capacity to produce PHBs varied fairly under different conditions, photoelectroautotrophy and photoferroautotrophy showed the highest PHB electron yield and the highest specific PHB productivity, respectively. Gene expression analysis showed that there was no differential expression in PHB biosynthesis genes. This suggests that the variations in PHB accumulation might be post-transcriptionally regulated. This is the first study to systematically quantify the amount of PHB produced by a microbe via photoelectroautotrophy and photoferroautotrophy. This work could lead to sustainable bioproduction using abundant resources such as light, electricity, iron, and carbon dioxide.
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Affiliation(s)
- Tahina Onina Ranaivoarisoa
- Department of Biology, Washington University in St. Louis, One Brookings Drive, St. Louis, MO, 63130, USA
| | - Rajesh Singh
- Department of Biology, Washington University in St. Louis, One Brookings Drive, St. Louis, MO, 63130, USA
| | - Karthikeyan Rengasamy
- Department of Biology, Washington University in St. Louis, One Brookings Drive, St. Louis, MO, 63130, USA
| | - Michael S Guzman
- Department of Biology, Washington University in St. Louis, One Brookings Drive, St. Louis, MO, 63130, USA
| | - Arpita Bose
- Department of Biology, Washington University in St. Louis, One Brookings Drive, St. Louis, MO, 63130, USA.
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Grigore ME, Grigorescu RM, Iancu L, Ion RM, Zaharia C, Andrei ER. Methods of synthesis, properties and biomedical applications of polyhydroxyalkanoates: a review. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2019; 30:695-712. [DOI: 10.1080/09205063.2019.1605866] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Mădălina Elena Grigore
- "Evaluation and Conservation of Cultural Heritage” Research Group, National Institute for Research and Development in Chemistry and Petrochemistry, ICECHIM, Bucharest, Romania
| | - Ramona Marina Grigorescu
- "Evaluation and Conservation of Cultural Heritage” Research Group, National Institute for Research and Development in Chemistry and Petrochemistry, ICECHIM, Bucharest, Romania
| | - Lorena Iancu
- "Evaluation and Conservation of Cultural Heritage” Research Group, National Institute for Research and Development in Chemistry and Petrochemistry, ICECHIM, Bucharest, Romania
| | - Rodica-Mariana Ion
- "Evaluation and Conservation of Cultural Heritage” Research Group, National Institute for Research and Development in Chemistry and Petrochemistry, ICECHIM, Bucharest, Romania
- Valahia University, Materials Engineering Department, 13th Aleey Sinaia, Targoviste, Romania
| | - Cătălin Zaharia
- Advanced Polymer Materials Group, University Politehnica of Bucharest, Bucharest, Romania
| | - Elena Ramona Andrei
- "Evaluation and Conservation of Cultural Heritage” Research Group, National Institute for Research and Development in Chemistry and Petrochemistry, ICECHIM, Bucharest, Romania
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Kandasamy R, Rajasekaran M, Venkatesan SK, Uddin M. New Trends in the Biomanufacturing of Green Surfactants: Biobased Surfactants and Biosurfactants. ACS SYMPOSIUM SERIES 2019. [DOI: 10.1021/bk-2019-1329.ch011] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Ramani Kandasamy
- Biomolecules and Biocatalysis Laboratory, Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur 603 203, Tamil Nadu, India
| | - Muneeswari Rajasekaran
- Biomolecules and Biocatalysis Laboratory, Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur 603 203, Tamil Nadu, India
| | - Swathi Krishnan Venkatesan
- Biomolecules and Biocatalysis Laboratory, Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur 603 203, Tamil Nadu, India
| | - Maseed Uddin
- Biomolecules and Biocatalysis Laboratory, Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur 603 203, Tamil Nadu, India
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Samantaray PK, Madras G, Bose S. Microbial Biofilm Membranes for Water Remediation and Photobiocatalysis. ACS SYMPOSIUM SERIES 2019. [DOI: 10.1021/bk-2019-1329.ch014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Paresh Kumar Samantaray
- Centre for BioSystems Science and Engineering, Indian Institute of Science, Bangalore, Karnataka 560012, India
- Department of Materials Engineering, Indian Institute of Science, Bangalore, Karnataka 560012, India
| | - Giridhar Madras
- Department of Chemical Engineering, Indian Institute of Science, Bangalore, Karnataka 560012, India
| | - Suryasarathi Bose
- Department of Materials Engineering, Indian Institute of Science, Bangalore, Karnataka 560012, India
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30
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Yadav TC, Srivastava AK, Mishra P, Singh D, Raghuwanshi N, Singh NK, Singh AK, Tiwari SK, Prasad R, Pruthi V. Electrospinning: An Efficient Biopolymer-Based Micro- and Nanofibers Fabrication Technique. ACS SYMPOSIUM SERIES 2019. [DOI: 10.1021/bk-2019-1329.ch010] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Tara Chand Yadav
- Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee - 247667, Uttarakhand, India
| | - Amit Kumar Srivastava
- Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee - 247667, Uttarakhand, India
| | - Purusottam Mishra
- Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee - 247667, Uttarakhand, India
| | - Divya Singh
- Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee - 247667, Uttarakhand, India
| | - Navdeep Raghuwanshi
- Vaccine Formulation & Research Center, Gennova (Emcure) Biopharmaceuticals Limited, Pune - 411057, Maharashtra, India
| | - Nitin Kumar Singh
- Department of Environment Science and Engineering, Marwadi Education Foundations Group of Institutions, Rajkot - 360003, Gujarat, India
| | - Amit Kumar Singh
- Department of Biochemistry, University of Allahabad, Allahabad, 211002 India
| | | | - Ramasare Prasad
- Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee - 247667, Uttarakhand, India
| | - Vikas Pruthi
- Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee - 247667, Uttarakhand, India
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31
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Catalán AI, Malan AK, Ferreira F, Gill PR, Batista S. Propionic acid metabolism and poly-3-hydroxybutyrate-co-3-hydroxyvalerate production by a prpC mutant of Herbaspirillum seropedicae Z69. J Biotechnol 2018; 286:36-44. [DOI: 10.1016/j.jbiotec.2018.09.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 09/14/2018] [Accepted: 09/17/2018] [Indexed: 01/25/2023]
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32
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Matturro B, Pierro L, Frascadore E, Petrangeli Papini M, Rossetti S. Microbial Community Changes in a Chlorinated Solvents Polluted Aquifer Over the Field Scale Treatment With Poly-3-Hydroxybutyrate as Amendment. Front Microbiol 2018; 9:1664. [PMID: 30087670 PMCID: PMC6066499 DOI: 10.3389/fmicb.2018.01664] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Accepted: 07/04/2018] [Indexed: 12/18/2022] Open
Abstract
This study investigated the organohalide-respiring bacteria (OHRB) and the supporting microbial populations operating in a pilot scale plant employing poly-3-hydroxybutyrate (PHB), a biodegradable polymer produced by bacteria from waste streams, for the in situ bioremediation of groundwater contaminated by chlorinated solvents. The bioremediation was performed in ground treatment units, including PHB reactors as slow release source of electron donors, where groundwater extracted from the wells flows through before the re-infiltration to the low permeability zones of the aquifer. The coupling of the biological treatment with groundwater recirculation allowed to drastically reducing the contamination level and the remediation time by efficiently stimulating the growth of autochthonous OHRB and enhancing the mobilization of the pollutants. Quantitative PCR performed along the external treatment unit showed that the PHB reactor may efficiently act as an external incubator to growing Dehalococcoides mccartyi, known to be capable of fully converting chlorinated ethenes to innocuous end-products. The slow release source of electron donors for the bioremediation process allowed the establishment of a stable population of D. mccartyi, mainly carrying bvcA and vcrA genes which are implicated in the metabolic conversion of vinyl chloride to harmless ethene. Next generation sequencing was performed to analyze the phylogenetic diversity of the groundwater microbiome before and after the bioremediation treatment and allowed the identification of the microorganisms working closely with organohalide-respiring bacteria.
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Affiliation(s)
| | - Lucia Pierro
- Department of Chemistry, Sapienza University of Rome, Rome, Italy
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Affiliation(s)
- Xu Zhang
- MOE Lab of Bioinformatics; School of Life Sciences; Tsinghua University; Beijing 100084 China
- Center for Synthetic and Systems Biology; Tsinghua University; Beijing 100084 China
| | - Yina Lin
- MOE Lab of Bioinformatics; School of Life Sciences; Tsinghua University; Beijing 100084 China
- Center for Synthetic and Systems Biology; Tsinghua University; Beijing 100084 China
- Tsinghua-Peking Center for Life Sciences; Tsinghua University; Beijing 100084 China
| | - Guo-Qiang Chen
- MOE Lab of Bioinformatics; School of Life Sciences; Tsinghua University; Beijing 100084 China
- Center for Synthetic and Systems Biology; Tsinghua University; Beijing 100084 China
- Tsinghua-Peking Center for Life Sciences; Tsinghua University; Beijing 100084 China
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34
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Tang X, Chen EYX. Chemical synthesis of perfectly isotactic and high melting bacterial poly(3-hydroxybutyrate) from bio-sourced racemic cyclic diolide. Nat Commun 2018; 9:2345. [PMID: 29891896 PMCID: PMC5995816 DOI: 10.1038/s41467-018-04734-3] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Accepted: 05/18/2018] [Indexed: 01/16/2023] Open
Abstract
Bacterial poly(3-hydroxybutyrate) (P3HB) is a perfectly isotactic, crystalline material possessing properties suitable for substituting petroleum plastics, but high costs and low volumes of its production are impractical for commodity applications. The chemical synthesis of P3HB via ring-opening polymerization (ROP) of racemic β-butyrolactone has attracted intensive efforts since the 1960s, but not yet produced P3HB with high isotacticity and molecular weight. Here, we report a route utilizing racemic cyclic diolide (rac-DL) derived from bio-sourced succinate. With stereoselective racemic catalysts, the ROP of rac-DL under ambient conditions produces rapidly P3HB with perfect isotacticity ([mm] > 99%), high melting temperature (Tm = 171 °C), and high molecular weight (Mn = 1.54 × 105 g mol-1, Đ = 1.01). With enantiomeric catalysts, kinetic resolution polymerizations of rac-DL automatically stops at 50% conversion and yields enantiopure (R,R)-DL and (S,S)-DL with >99% e.e. and the corresponding poly[(S)-3HB] and poly[(R)-3HB] with high Tm = 175 °C.
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Affiliation(s)
- Xiaoyan Tang
- Department of Chemistry, Colorado State University, Fort Collins, CO, 80523-1872, USA
| | - Eugene Y-X Chen
- Department of Chemistry, Colorado State University, Fort Collins, CO, 80523-1872, USA.
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35
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Xue Q, Liu XB, Lao YH, Wu LP, Wang D, Zuo ZQ, Chen JY, Hou J, Bei YY, Wu XF, Leong KW, Xiang H, Han J. Anti-infective biomaterials with surface-decorated tachyplesin I. Biomaterials 2018; 178:351-362. [PMID: 29778319 DOI: 10.1016/j.biomaterials.2018.05.008] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Revised: 05/03/2018] [Accepted: 05/04/2018] [Indexed: 10/16/2022]
Abstract
Implants decorated with antimicrobial peptides (AMPs) can prevent infection and reduce the risk of creating antibiotic resistance. Yet the restricted mobility of surficial AMP often compromises its activity. Here, we report a simple but effective strategy to allow a more flexible display of AMP on the biomaterial surface and demonstrate its efficacy for wound healing. The AMP, tachyplesin I (Tac), is tagged with the polyhydroxyalkanoate-granule-associated protein (PhaP) and immobilized on haloarchaea-produced poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBHV) via hydrophobic interaction. The PhaP-Tac coating effectively inhibits the growth of both Gram-negative and Gram-positive bacteria. It also increases the surface hydrophilicity to improve fibroblast proliferation in vitro, and accelerates wound healing by decreasing bacterial counts to below 105 CFU per gram of tissue in a deep-wound mouse model in vivo. Taken together, these findings demonstrate an effective strategy to realize the full potential of AMPs in imparting implants with an anti-microbial activity that is localized and potent.
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Affiliation(s)
- Qiong Xue
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China; College of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Xiao-Bin Liu
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China
| | - Yeh-Hsing Lao
- Department of Biomedical Engineering, Columbia University, New York, NY 10027, United States
| | - Lin-Ping Wu
- Guangzhou Institute of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, People's Republic of China
| | - Dong Wang
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Zhen-Qiang Zuo
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China; College of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Jun-Yu Chen
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China; College of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Jing Hou
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, People's Republic of China
| | - Yuan-Yuan Bei
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China
| | - Xue-Fei Wu
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Kam W Leong
- Department of Biomedical Engineering, Columbia University, New York, NY 10027, United States
| | - Hua Xiang
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China; College of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Jing Han
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China; College of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China.
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36
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The production of poly(3-hydroxybutyrate) by thermophilic Caldimonas manganoxidans from glycerol. JOURNAL OF POLYMER RESEARCH 2018. [DOI: 10.1007/s10965-018-1486-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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37
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Potential of Borneo Acacia wood in fully biodegradable bio-composites’ commercial production and application. Polym Bull (Berl) 2018. [DOI: 10.1007/s00289-018-2299-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Poly(hydroxyalkanoate)s-Based Hydrophobic Coatings for the Protection of Stone in Cultural Heritage. MATERIALS 2018; 11:ma11010165. [PMID: 29361721 PMCID: PMC5793663 DOI: 10.3390/ma11010165] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 01/11/2018] [Accepted: 01/17/2018] [Indexed: 11/17/2022]
Abstract
Reversibility is a mandatory requirement for materials used in heritage conservation, including hydrophobic protectives. Nevertheless, current protectives for stone are not actually reversible as they remain on the surfaces for a long time after their hydrophobicity is lost and can hardly be removed. Ineffective and aged coatings may jeopardise the stone re-treatability and further conservation interventions. This paper aims at investigating the performance of PHAs-based coatings for stone protection, their main potential being the 'reversibility by biodegradation' once water repellency ended. The biopolymer coatings were applied to three different kinds of stone, representative of lithotypes used in historic architecture: sandstone, limestone and marble. Spray, poultice and dip-coating were tested as coating techniques. The effectiveness and compatibility of the protectives were evaluated in terms of capillary water absorption, static and dynamic contact angles, water vapour diffusion, colour alteration and surface morphology. The stones' wettability after application of two commercial protectives was investigated too, for comparison. Finally, samples were subjected to artificial ageing to investigate their solar light stability. Promising results in terms of efficacy and compatibility were obtained, although the PHAs-based formulations developed here still need improvement for increased durability and on-site applicability.
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Sharma PK, Munir RI, de Kievit T, Levin DB. Synthesis of polyhydroxyalkanoates (PHAs) from vegetable oils and free fatty acids by wild-type and mutant strains of Pseudomonas chlororaphis. Can J Microbiol 2017; 63:1009-1024. [DOI: 10.1139/cjm-2017-0412] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Pseudomonas chlororaphis PA23 was isolated from soybean roots as a plant-growth-promoting rhizobacterium. This strain secretes a wide range of compounds, including the antibiotics phenazine-1-carboxylic acid (PCA), pyrrolnitrin, and 2-hydroxyphenazine. We have determined that P. chlororaphis PA23 can synthesize medium-chain-length polyhydroxyalkanoate (PHA) polymers utilizing free fatty acids, such as octanoic acid and nonanoic acid, as well as vegetable oils as sole carbon sources. Genome analysis identified a pha operon containing 7 genes in P. chlororaphis PA23 that were highly conserved. A nonpigmented strain that does not synthesize PCA, P. chlororaphis PA23-63, was also studied for PHA production. Pseudomonas chlororaphis PA23-63 produced 2.42–5.14 g/L cell biomass and accumulated PHAs from 11.7% to 32.5% cdm when cultured with octanoic acid, nonanoic acid, fresh canola oil, waste canola fryer oil, or biodiesel-derived waste free fatty acids under batch culture conditions. The subunit composition of the PHAs produced from fresh canola oil, waste canola fryer oil, or biodiesel-derived free fatty acids did not differ significantly. Addition of octanoic acid and nonanoic acid to canola oil cultures increased PHA production, but addition of glucose did not. PHA production in the phz mutant, P. chlororaphis PA23-63, was greater than that in the parent strain.
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Affiliation(s)
- Parveen K. Sharma
- Department of Biosystems Engineering, University of Manitoba, Winnipeg, MB R3T 5V6, Canada
- Department of Microbiology, University of Manitoba, Winnipeg, MB R3T 5V6, Canada
| | - Riffat I. Munir
- Department of Biosystems Engineering, University of Manitoba, Winnipeg, MB R3T 5V6, Canada
- Department of Microbiology, University of Manitoba, Winnipeg, MB R3T 5V6, Canada
| | - Teresa de Kievit
- Department of Microbiology, University of Manitoba, Winnipeg, MB R3T 5V6, Canada
| | - David B. Levin
- Department of Biosystems Engineering, University of Manitoba, Winnipeg, MB R3T 5V6, Canada
- Department of Microbiology, University of Manitoba, Winnipeg, MB R3T 5V6, Canada
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40
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Mohapatra S, Maity S, Dash HR, Das S, Pattnaik S, Rath CC, Samantaray D. Bacillus and biopolymer: Prospects and challenges. Biochem Biophys Rep 2017; 12:206-213. [PMID: 29090283 PMCID: PMC5651552 DOI: 10.1016/j.bbrep.2017.10.001] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Revised: 10/03/2017] [Accepted: 10/06/2017] [Indexed: 01/27/2023] Open
Abstract
The microbially derived polyhydroxyalkanoates biopolymers could impact the global climate scenario by replacing the conventional non-degradable, petrochemical-based polymer. The biogenesis, characterization and properties of PHAs by Bacillus species using renewable substrates have been elaborated by many for their wide applications. On the other hand Bacillus species are advantageous over other bacteria due to their abundance even in extreme ecological conditions, higher growth rates even on cheap substrates, higher PHAs production ability, and the ease of extracting the PHAs. Bacillus species possess hydrolytic enzymes that can be exploited for economical PHAs production. This review summarizes the recent trends in both non-growth and growth associated PHAs production by Bacillus species which may provide direction leading to future research towards this growing quest for biodegradable plastics, one more critical step ahead towards sustainable development.
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Affiliation(s)
- Swati Mohapatra
- Department of Biotechnology, Indian Institute of Technology, Roorkee 247667, India
| | - Sudipta Maity
- Department of Microbiology, CPGS, OUAT, Bhubaneswar-3, Odisha, India
| | - Hirak Ranjan Dash
- Department of Life Science, National Institute of Technology, Rourkela 769008, Odisha, India
| | - Surajit Das
- Department of Life Science, National Institute of Technology, Rourkela 769008, Odisha, India
| | - Swati Pattnaik
- Department of Microbiology, CPGS, OUAT, Bhubaneswar-3, Odisha, India
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Keskin G, Kızıl G, Bechelany M, Pochat-Bohatier C, Öner M. Potential of polyhydroxyalkanoate (PHA) polymers family as substitutes of petroleum based polymers for packaging applications and solutions brought by their composites to form barrier materials. PURE APPL CHEM 2017. [DOI: 10.1515/pac-2017-0401] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Today, there is an increasing concern about protection of ecological systems. Petro-based synthetic polymers are not biodegradable and cause environmental pollution. These polymers that are stuck in nature, affect wildlife adversely. Also, in future petrochemical materials will drain away and demand for eco-friendly plastics which can substitute synthetic plastics will increase. Biopolymers are products which can be degraded by enzymatic activities of various microorganisms, and the degradation products are nontoxic. They are attractive alternatives to non-degradable materials in short-term applications such as packaging. Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) is a member of polyhydroxyalkanoate (PHA) family which is biodegradable and produced by microorganism. It has good gas barrier properties that make it convenient to use in different applications. The present paper gives an overview on PHAs and their composites, their main properties, with a specific focus on potential applications of PHBV in packaging.
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Raza ZA, Riaz S, Banat IM. Polyhydroxyalkanoates: Properties and chemical modification approaches for their functionalization. Biotechnol Prog 2017; 34:29-41. [PMID: 28960792 DOI: 10.1002/btpr.2565] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 08/23/2017] [Indexed: 01/08/2023]
Abstract
Polyhydroxyalkanoates (PHAs) have become an attractive biomaterial in research in the past few years due to their extensive potential industrial applications. Being long chain hydroxyl fatty acid molecules, the PHAs are hydrophobic in nature, and have less functional groups. These features limit their applications in various areas. To enhance their usage, these polymers may need to be modified including surface and chemical modifications. Such modifications may alter their mechanical properties, surface structure, amphiphilic character and rate of degradation to fulfil the requirements for their future applications. Chemical modifications allow incorporation of functional groups to PHAs that could not be introduced through biotechnological methods. These chemically reformed PHAs, with enhanced properties, could be used for broad range of applications. This review aims to introduce different chemical modification approaches including some recent methods that had not been explored or discussed so far for PHAs as possible technologies for widening the range of product and application potentials. © 2017 American Institute of Chemical Engineers Biotechnol. Prog., 34:29-41, 2018.
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Affiliation(s)
- Zulfiqar Ali Raza
- Dept. of Applied Sciences, National Textile University, Faisalabad, 37610, Pakistan
| | - Shahina Riaz
- Dept. of Applied Sciences, National Textile University, Faisalabad, 37610, Pakistan
| | - Ibrahim M Banat
- School of Biomedical Sciences, University of Ulster, Coleraine, Northern Ireland, BT52 1SA, U.K
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43
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Draft Genome Sequence of Bacillus aryabhattai Strain PHB10, a Poly(3-Hydroxybutyrate)-Accumulating Bacterium Isolated from Domestic Sewerage. GENOME ANNOUNCEMENTS 2017; 5:5/41/e01072-17. [PMID: 29025943 PMCID: PMC5637503 DOI: 10.1128/genomea.01072-17] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Bacillus aryabhattai PHB10 is a poly(3-hydroxybutyrate) (PHB)-accumulating bacterium isolated from domestic sewerage. Here, we report the 4.19-Mb draft genome sequence, with 4,050 protein-coding genes and a G+C content of 37.5%. This sequence will be helpful in the study of the high-level PHB accumulation mechanism of the strain.
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44
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Anis SNS, Mohamad Annuar MS, Simarani K. In vivo and in vitro depolymerizations of intracellular medium-chain-length poly-3-hydroxyalkanoates produced by Pseudomonas putida Bet001. Prep Biochem Biotechnol 2017. [DOI: 10.1080/10826068.2017.1342266] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Siti Nor Syairah Anis
- Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | | | - Khanom Simarani
- Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
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García-Hidalgo J, Acebal C, de la Mata I, Arroyo M. Developing an efficient strategy for immobilization of PHB depolymerase on magnetite-based nanoparticles for degrading polyhydroxybutyrate in acidic conditions. BIOCATAL BIOTRANSFOR 2017. [DOI: 10.1080/10242422.2017.1315942] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Javier García-Hidalgo
- Departamento de Bioquímica y Biología Molecular I, Facultad de Biología, Universidad Complutense de Madrid, Madrid, Spain
| | - Carmen Acebal
- Departamento de Bioquímica y Biología Molecular I, Facultad de Biología, Universidad Complutense de Madrid, Madrid, Spain
| | - Isabel de la Mata
- Departamento de Bioquímica y Biología Molecular I, Facultad de Biología, Universidad Complutense de Madrid, Madrid, Spain
| | - Miguel Arroyo
- Departamento de Bioquímica y Biología Molecular I, Facultad de Biología, Universidad Complutense de Madrid, Madrid, Spain
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Im DK, Yun SH, Jung JY, Lee J, Oh MK. Comparison of metabolite profiling of Ralstonia eutropha H16 phaBCA mutants grown on different carbon sources. KOREAN J CHEM ENG 2017. [DOI: 10.1007/s11814-016-0333-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Ibrahim MHA, Lebbe L, Willems A, Steinbüchel A. Chelatococcus thermostellatus sp. nov., a new thermophile for bioplastic synthesis: comparative phylogenetic and physiological study. AMB Express 2016; 6:39. [PMID: 27277080 PMCID: PMC4900968 DOI: 10.1186/s13568-016-0209-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Accepted: 05/19/2016] [Indexed: 12/30/2022] Open
Abstract
The poly(3-hydroxybutyrate), PHB, accumulating thermophilic strain MW9T, isolated from an aerobic organic waste treatment plant, was characterized by detailed physiological and phylogenetic studies. The strain is a Gram-stain-negative, rod shaped, non-spore forming member of Alphaproteobacteria. It shows optimum growth at 50 °C. Based on 16S rRNA gene sequence similarity, the strain together with five very similar isolates, was affiliated to the genus Chelatococcus (Ibrahim et al. in J Appl Microbiol 109:1579–1590, 2010). Rep-PCR genomic fingerprints and partial dnaK gene sequence also revealed that these isolates are very similar, but differ from other Chelatococcus type strains. The major fatty acids were similar to those of other strains of the genus Chelatococcus. DNA–DNA hybridization of strain MW9T with Chelatococcus species type strains revealed 11.0–47.7 % relatedness. G+C content of DNA was 67.1 mol%, which is comparable with the other strains of Chelatococcus species. The physiological and phenotypic characteristics of the new strain MW9T are sufficient to differentiate it from previously described species in the genus Chelatococcus. Strain MW9T is considered to represent a novel species of the genus Chelatococcus, for which the name Chelatococcus thermostellatus is proposed. The type strain is MW9T (=LMG 27009T = DSM 28244T). Compared to known Chelatococcus strains, strain MW9T could be a potent candidate for bioplastic production at elevated temperature.
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Production kinetics of polyhydroxyalkanoates by using Pseudomonas aeruginosa gamma ray mutant strain EBN-8 cultured on soybean oil. 3 Biotech 2016; 6:142. [PMID: 28330214 PMCID: PMC4919136 DOI: 10.1007/s13205-016-0452-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Accepted: 06/03/2016] [Indexed: 11/03/2022] Open
Abstract
The purpose of present study was to optimize polyhydroxyalkanotes (PHAs) production in a gamma ray mutant strain of Pseudomonas aeruginosa grown on soybean oil in minimal salts media under shake flask conditions. The production kinetics was studied by sampling on daily basis for 6 days to investigate the best conditions for PHAs production like biomass estimation, carbon source utilization and PHAs yield. The PHA accumulation was observed up to 50.27 % (w/w) of cell dry mass. The Pseudomonas species synthesized medium chain length PHA copolyester as per identified by LCMS and confirmed by FTIR spectroscopy. The ESI-MS analysis exhibited the major polyhydroxybutyrate with a molecular mass of m/z 448.5.
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Volova T, Zhila N, Kiselev E, Prudnikova S, Vinogradova O, Nikolaeva E, Shumilova A, Shershneva A, Shishatskaya E. Poly(3-hydroxybutyrate)/metribuzin formulations: characterization, controlled release properties, herbicidal activity, and effect on soil microorganisms. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:23936-23950. [PMID: 27628924 DOI: 10.1007/s11356-016-7636-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Accepted: 09/07/2016] [Indexed: 05/27/2023]
Abstract
Slow-release formulations of the herbicide metribuzin (MET) embedded in the polymer matrix of degradable poly-3-hydroxybutyrate [P(3HB)] in the form of microparticles, films, microgranules, and pellets were developed and tested. The kinetics of polymer degradation, MET release, and accumulation in soil were studied in laboratory soil microecosystems with higher plants. The study shows that MET release can be controlled by using different techniques of constructing formulations and by varying MET loading. MET accumulation in soil occurs gradually, as the polymer is degraded. The average P(3HB) degradation rates were determined by the geometry of the formulation, reaching 0.17, 0.12, 0.04, and 0.05 mg/day after 60 days for microparticles, films, microgranules, and pellets, respectively. The herbicidal activities of P(3HB)/MET formulations and commercial formulation Sencor Ultra were tested on the Agrostis stolonifera and Setaria macrocheata plants. The parameters used to evaluate the herbicidal activity were plant density and the weight of fresh green biomass measured at days 10, 20, and 30 after sowing. All P(3HB)/MET formulations had pronounced herbicidal activity, which varied depending on MET loading and the stage of the experiment. In the early phases of the experiment, the herbicidal effect of P(3HB)/MET formulations with the lowest MET loading (10 %) was comparable with that of the commercial formulation. The herbicidal effect of P(3HB)/MET formulations with higher MET loadings (25 and 50 %) at later stages of the experiment were stronger than the effect of Sencor Ultra.
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Affiliation(s)
- Tatiana Volova
- Institute of Biopshysics of Siberian Branch of Russian Academy of Sciences, 50/50 Akademgorodok, Krasnoyarsk, Russian Federation, 660036.
| | - Natalia Zhila
- Institute of Biopshysics of Siberian Branch of Russian Academy of Sciences, 50/50 Akademgorodok, Krasnoyarsk, Russian Federation, 660036
| | - Evgeniy Kiselev
- Institute of Biopshysics of Siberian Branch of Russian Academy of Sciences, 50/50 Akademgorodok, Krasnoyarsk, Russian Federation, 660036
| | - Svetlana Prudnikova
- Institute of Biopshysics of Siberian Branch of Russian Academy of Sciences, 50/50 Akademgorodok, Krasnoyarsk, Russian Federation, 660036
- Siberian Federal University, 79 Svobodny Ave., Krasnoyarsk, Russian Federation, 660041
| | - Olga Vinogradova
- Institute of Biopshysics of Siberian Branch of Russian Academy of Sciences, 50/50 Akademgorodok, Krasnoyarsk, Russian Federation, 660036
| | - Elena Nikolaeva
- Institute of Biopshysics of Siberian Branch of Russian Academy of Sciences, 50/50 Akademgorodok, Krasnoyarsk, Russian Federation, 660036
| | - Anna Shumilova
- Institute of Biopshysics of Siberian Branch of Russian Academy of Sciences, 50/50 Akademgorodok, Krasnoyarsk, Russian Federation, 660036
| | - Anna Shershneva
- Institute of Biopshysics of Siberian Branch of Russian Academy of Sciences, 50/50 Akademgorodok, Krasnoyarsk, Russian Federation, 660036
| | - Ekaterina Shishatskaya
- Institute of Biopshysics of Siberian Branch of Russian Academy of Sciences, 50/50 Akademgorodok, Krasnoyarsk, Russian Federation, 660036
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Rodríguez-Contreras A, Marqués-Calvo MS, Gil FJ, Manero JM. Modification of titanium surfaces by adding antibiotic-loaded PHB spheres and PEG for biomedical applications. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2016; 27:124. [PMID: 27318469 DOI: 10.1007/s10856-016-5723-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Accepted: 05/02/2016] [Indexed: 06/06/2023]
Abstract
Novel researches are focused on the prevention and management of post-operative infections. To avoid this common complication of implant surgery, it is preferable to use new biomaterials with antibacterial properties. Therefore, the aim of this work is to develop a method of combining the antibacterial properties of antibiotic-loaded poly(3-hydroxybutyrate) (PHB) nano- and micro-spheres and poly(ethylene glycol) (PEG) as an antifouling agent, with titanium (Ti), as the base material for implants, in order to obtain surfaces with antibacterial activity. The Ti surfaces were linked to both PHB particles and PEG by a covalent bond. This attachment was carried out by firstly activating the surfaces with either Oxygen plasma or Sodium hydroxide. Further functionalization of the activated surfaces with different alkoxysilanes allows the reaction with PHB particles and PEG. The study confirms that the Ti surfaces achieved the antibacterial properties by combining the antibiotic-loaded PHB spheres, and PEG as an antifouling agent.
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Affiliation(s)
- Alejandra Rodríguez-Contreras
- Departament de Ciència dels Materials i Enginyeria Metal·lúrgica, Laboratori de Microscòpia Electrònica, Universitat Politècnica de Catalunya-Barcelona TECH, Avda. Diagonal Pavelló E (Etseib)-Planta 0, 647-08028, Barcelona, Spain.
| | - María Soledad Marqués-Calvo
- Departament d'Òptica i Optometria, Universitat Politècnica de Catalunya-Barcelona TECH, Sant Nebridi 22, 08222, Terrassa Barcelona, Spain
| | - Francisco Javier Gil
- Departament de Ciència dels Materials i Enginyeria Metal·lúrgica, Laboratori de Microscòpia Electrònica, Universitat Politècnica de Catalunya-Barcelona TECH, Avda. Diagonal Pavelló E (Etseib)-Planta 0, 647-08028, Barcelona, Spain
- Departament de Ciència dels Materials i Enginyeria Metal·lúrgica, Biomaterials, Biomechanics and Tissue Engineering Group, Universitat Politècnica de Catalunya-Barcelona TECH, Avda. Diagonal, 647-08028, Barcelona, Spain
- CIBER-BBN, Centro de Investigación Biomédica en Red, Madrid, Spain
| | - José María Manero
- Departament de Ciència dels Materials i Enginyeria Metal·lúrgica, Laboratori de Microscòpia Electrònica, Universitat Politècnica de Catalunya-Barcelona TECH, Avda. Diagonal Pavelló E (Etseib)-Planta 0, 647-08028, Barcelona, Spain
- Departament de Ciència dels Materials i Enginyeria Metal·lúrgica, Biomaterials, Biomechanics and Tissue Engineering Group, Universitat Politècnica de Catalunya-Barcelona TECH, Avda. Diagonal, 647-08028, Barcelona, Spain
- CIBER-BBN, Centro de Investigación Biomédica en Red, Madrid, Spain
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