1
|
Zhuikova YV, Zhuikov VA, Makhina TK, Efremov YM, Aksenova NA, Timashev PS, Bonartseva GA, Varlamov VP. Preparation and characterization of poly(3-hydroxybutyrate)/chitosan composite films using acetic acid as a solvent. Int J Biol Macromol 2023; 248:125970. [PMID: 37494998 DOI: 10.1016/j.ijbiomac.2023.125970] [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: 05/19/2023] [Revised: 06/27/2023] [Accepted: 07/22/2023] [Indexed: 07/28/2023]
Abstract
Poly(3-hydroxybutyrate) and chitosan are among the most widely used polymers for biomedical applications due to their biocompatibility, renewability and low toxicity. The creation of composite materials based on biopolymers belonging to different classes makes it possible to overcome the disadvantages of each of the components and to obtain a material with specific properties. Solving this problem is associated with difficulties in the selection of conditions and solvents for obtaining the composite material. In our study, acetic acid was used as a common solvent for hydrophobic poly(3-hydroxybutyrate) and chitosan. Mechanical, thermal, physicochemical and surface properties of the composites and homopolymers were investigated. The composite films had less crystallinity and hydrophobicity than poly(3-hydroxybutyrate), and the addition of chitosan caused an increase in moisture absorption, a decrease in contact angle and changes in mechanical properties of the poly(3-hydroxybutyrate). The inclusion of varying amounts of chitosan controlled the properties of the composite, which will be important in the future for its specific biomedical applications.
Collapse
Affiliation(s)
- Yulia V Zhuikova
- Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, Russia.
| | - Vsevolod A Zhuikov
- Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, Russia
| | - Tatiana K Makhina
- Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, Russia
| | - Yuri M Efremov
- Institute for Regenerative Medicine, Sechenov University, Moscow, Russia
| | - Nadezhda A Aksenova
- Institute for Regenerative Medicine, Sechenov University, Moscow, Russia; N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, Moscow, Russia
| | - Peter S Timashev
- Institute for Regenerative Medicine, Sechenov University, Moscow, Russia; World-Class Research Center "Digital Biodesign and Personalized Healthcare" Moscow, Russia; Chemistry Department, Lomonosov Moscow State University, Moscow, Russia
| | - Garina A Bonartseva
- Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, Russia
| | - Valery P Varlamov
- Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, Russia
| |
Collapse
|
2
|
Xie Q, Yang J, Cai J, Shen F, Gu J. Homogeneous preparation of water-soluble products from chitin under alkaline conditions and their cell proliferation in vitro. Int J Biol Macromol 2023; 231:123321. [PMID: 36657539 DOI: 10.1016/j.ijbiomac.2023.123321] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 12/18/2022] [Accepted: 01/14/2023] [Indexed: 01/18/2023]
Abstract
The purpose of this study was to prepare water-soluble products by homogeneous depolymerization of chitin with H2O2 under alkaline conditions and investigate their potential application in wound healing. For the first time, water-soluble products were successfully prepared using a chitin-NaOH/urea solution; the products were chitosans with molecular weights (Mw) of 3.48-33.5 kDa and degrees of deacetylation (DD) > 0.5. Their Mw, DD and yield were affected by the reaction temperature, reaction time, concentration of H2O2 and chitin DD. The deacetylation and depolymerization of chitin were achieved simultaneously. The depolymerization of chitin was caused by hydrogen abstraction of HO, whereas the deacetylation resulted from the cleavage of amide bonds by HO- and HO2-, although the latter played a more important role. All water-soluble chitosans markedly promoted the proliferation of human skin fibroblast (HSF) cells, but they inhibited the proliferation of human keratinocyte cells. For the proliferation of HSF, a low concentration of chitosans was important. In addition, water-soluble chitosans with an Mw of 3.48-16.4 kDa markedly stimulated the expression of growth factors such as PDGF and TGF-β by macrophages. Water-soluble chitosans could be used as a potential active component in wound dressings.
Collapse
Affiliation(s)
- Qinyue Xie
- School of Environmental Science and Engineering, Changzhou University, Changzhou 213164, China
| | - Jianhong Yang
- School of Environmental Science and Engineering, Changzhou University, Changzhou 213164, China.
| | - Jun Cai
- Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei Key Laboratory of Industrial Microbiology, Hubei University of Technology, Wuhan 430068, China
| | - Fengqin Shen
- Changzhou Liu Guojun Vocational Technology College, Changzhou 213025, Jiangsu, China
| | - Jianbin Gu
- School of Environmental Science and Engineering, Changzhou University, Changzhou 213164, China
| |
Collapse
|
3
|
Biocomposite Materials Based on Poly(3-hydroxybutyrate) and Chitosan: A Review. Polymers (Basel) 2022; 14:polym14245549. [PMID: 36559916 PMCID: PMC9782520 DOI: 10.3390/polym14245549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 12/03/2022] [Accepted: 12/16/2022] [Indexed: 12/23/2022] Open
Abstract
One of the important directions in the development of modern medical devices is the search and creation of new materials, both synthetic and natural, which can be more effective in their properties than previously used materials. Traditional materials such as metals, ceramics, and synthetic polymers used in medicine have certain drawbacks, such as insufficient biocompatibility and the emergence of an immune response from the body. Natural biopolymers have found applications in various fields of biology and medicine because they demonstrate a wide range of biological activity, biodegradability, and accessibility. This review first described the properties of the two most promising biopolymers belonging to the classes of polyhydroxyalkanoates and polysaccharides-polyhydroxybutyrate and chitosan. However, homopolymers also have some disadvantages, overcome which becomes possible by creating polymer composites. The article presents the existing methods of creating a composite of two polymers: copolymerization, electrospinning, and different ways of mixing, with a description of the properties of the resulting compositions. The development of polymer composites is a promising field of material sciences, which allows, based on the combination of existing substances, to develop of materials with significantly improved properties or to modify of the properties of each of their constituent components.
Collapse
|
4
|
Shishatskaya EI, Dudaev AE, Volova TG. Resorbable Nanomatrices from Microbial Polyhydroxyalkanoates: Design Strategy and Characterization. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3843. [PMID: 36364619 PMCID: PMC9656924 DOI: 10.3390/nano12213843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/24/2022] [Accepted: 10/28/2022] [Indexed: 06/16/2023]
Abstract
From a series of biodegradable natural polymers of polyhydroxyalkanoates (PHAs)-poly-3-hydroxybutyrate (P(3HB) and copolymers containing, in addition to 3HB monomers, monomers of 3-hydroxyvalerate (3HV), 3-hydroxyhexanoate (3HHx), and 4-hydroxybutyrate (4HB), with different ratios of monomers poured-solvent casting films and nanomembranes with oriented and non-oriented ultrathin fibers were obtained by electrostatic molding. With the use of SEM, AFM, and measurement of contact angles and energy characteristics, the surface properties and mechanical and biological properties of the polymer products were studied depending on the method of production and the composition of PHAs. It has been shown in cultures of mouse fibroblasts of the NIH 3T3 line and diploid human embryonic cells of the M22 line that elastic films and nanomembranes composed of P(3HB-co-4HB) copolymers have high biocompatibility and provide adhesion, proliferation and preservation of the high physiological activity of cells for up to 7 days. Polymer films, namely oriented and non-oriented nanomembranes coated with type 1 collagen, are positively evaluated as experimental wound dressings in experiments on laboratory animals with model and surgical skin lesions. The results of planimetric measurements of the dynamics of wound healing and analysis of histological sections showed the regeneration of model skin defects in groups of animals using experimental wound dressings from P(3HB-co-4HB) of all types, but most actively when using non-oriented nanomembranes obtained by electrospinning. The study highlights the importance of nonwoven nanomembranes obtained by electrospinning from degradable low-crystalline copolymers P(3HB-co-4HB) in the effectiveness of the skin wound healing process.
Collapse
Affiliation(s)
- Ekaterina I. Shishatskaya
- Department of Medical Biology, School of Fundamental Biology and Biotechnology, Siberian Federal University, 79 Svobodnyi Av., 660041 Krasnoyarsk, Russia
- Chemistry Engineering Centre, ITMO University, Kronverkskiy Prospekt, 49A, 197101 Saint Petersburg, Russia
| | - Alexey E. Dudaev
- Department of Medical Biology, School of Fundamental Biology and Biotechnology, Siberian Federal University, 79 Svobodnyi Av., 660041 Krasnoyarsk, Russia
- Institute of Biophysics SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS”, 50/50 Akademgorodok, 660036 Krasnoyarsk, Russia
| | - Tatiana G. Volova
- Institute of Biophysics SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS”, 50/50 Akademgorodok, 660036 Krasnoyarsk, Russia
- Basic Department of Biotechnology, School of Fundamental Biology and Biotechnology, Siberian Federal University, 79 Svobodnyi Av., 660041 Krasnoyarsk, Russia
| |
Collapse
|
5
|
Panda SK. Synthesis and Overall Migration Study of Chitosan‐Encapsulated ZnO‐Based ESO Bionanocomposite with Synergistic Antimicrobial Activity for Packaging Purpose. ChemistrySelect 2022. [DOI: 10.1002/slct.202201433] [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]
Affiliation(s)
- Shiv kumari Panda
- Assistant professor in Department of Chemistry U.N Autonomous college of Science and Technology Adaspur Cuttack Odisha 754011 India
| |
Collapse
|
6
|
Chen M, Yu P, Xing J, Wang Y, Ren K, Zhou G, Luo J, Xie J, Li J. Gellan gum modified hyaluronic acid hydrogel as viscosupplement with lubrication maintenance and enzymatic resistance. J Mater Chem B 2022; 10:4479-4490. [PMID: 35613532 DOI: 10.1039/d2tb00421f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Osteoarthritis (OA) is a common disease caused by damage to articular cartilage and underlying bone tissues. Early OA can be treated by intra-articular injection of viscosupplements to restore the lost...
Collapse
Affiliation(s)
- Meilin Chen
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Peng Yu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Jiaqi Xing
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Yutong Wang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Kai Ren
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Guangwu Zhou
- School of Aeronautics and Astronautics, Sichuan University, Chengdu 610065, P. R. China
| | - Jun Luo
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Jing Xie
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Jianshu Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China.
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, P. R. China
- Med-X Center for Materials, Sichuan University, Chengdu 610041, P. R. China
| |
Collapse
|
7
|
Capezza AJ, Muneer F, Prade T, Newson WR, Das O, Lundman M, Olsson RT, Hedenqvist MS, Johansson E. Acylation of agricultural protein biomass yields biodegradable superabsorbent plastics. Commun Chem 2021; 4:52. [PMID: 36697586 PMCID: PMC9814733 DOI: 10.1038/s42004-021-00491-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2021] [Accepted: 03/16/2021] [Indexed: 01/28/2023] Open
Abstract
Superabsorbent polymers (SAP) are a central component of hygiene and medical products requiring high liquid swelling, but these SAP are commonly derived from petroleum resources. Here, we show that sustainable and biodegradable SAP can be produced by acylation of the agricultural potato protein side-stream (PPC) with a non-toxic dianhydride (EDTAD). Treatment of the PPC yields a material with a water swelling capacity of ca. 2400%, which is ten times greater than the untreated PPC. Acylation was also performed on waste potato fruit juice (PFJ), i.e. before the industrial treatment to precipitate the PPC. The use of PFJ for the acylation implies a saving of 320 000 tons as CO2 in greenhouse gas emissions per year by avoiding the industrial drying of the PFJ to obtain the PPC. The acylated PPC shows biodegradation and resistance to mould growth. The possibilities to produce a biodegradable SAP from the PPC allows for future fabrication of environment-friendly and disposable daily-care products, e.g. diapers and sanitary pads.
Collapse
Affiliation(s)
- Antonio J. Capezza
- grid.5037.10000000121581746Fibre and Polymer Technology Department, KTH Royal Institute of Technology, Stockholm, Sweden ,Plant Breeding Department, SLU Alnarp, Lomma, Sweden
| | - Faraz Muneer
- Plant Breeding Department, SLU Alnarp, Lomma, Sweden
| | - Thomas Prade
- Biosystems and Technology Department, SLU Alnarp, Lomma, Sweden
| | | | - Oisik Das
- grid.6926.b0000 0001 1014 8699Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering Division, Luleå University of Technology, Luleå, Sweden
| | | | - Richard T. Olsson
- grid.5037.10000000121581746Fibre and Polymer Technology Department, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Mikael S. Hedenqvist
- grid.5037.10000000121581746Fibre and Polymer Technology Department, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Eva Johansson
- Plant Breeding Department, SLU Alnarp, Lomma, Sweden
| |
Collapse
|
8
|
Chitosan grafted/cross-linked with biodegradable polymers: A review. Int J Biol Macromol 2021; 178:325-343. [PMID: 33652051 DOI: 10.1016/j.ijbiomac.2021.02.200] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 02/24/2021] [Accepted: 02/26/2021] [Indexed: 12/29/2022]
Abstract
Public perception of polymers has been drastically changed with the improved plastic management at the end of their life. However, it is widely recognised the need of developing biodegradable polymers, as an alternative to traditional petrochemical polymers. Chitosan (CH), a biodegradable biopolymer with excellent physiological and structural properties, together with its immunostimulatory and antibacterial activity, is a good candidate to replace other polymers, mainly in biomedical applications. However, CH has also several drawbacks, which can be solved by chemical modifications to improve some of its characteristics such as solubility, biological activity, and mechanical properties. Many chemical modifications have been studied in the last decade to improve the properties of CH. This review focussed on a critical analysis of the state of the art of chemical modifications by cross-linking and graft polymerization, between CH or CH derivatives and other biodegradable polymers (polysaccharides or proteins, obtained from microorganisms, synthetized from biomonomers, or from petrochemical products). Both techniques offer the option of including a wide variety of functional groups into the CH chain. Thus, enhanced and new properties can be obtained in accordance with the requirements for different applications, such as the release of drugs, the improvement of antimicrobial properties of fabrics, the removal of dyes, or as scaffolds to develop bone tissues.
Collapse
|
9
|
Madhumanchi S, Srichana T, Domb AJ. Polymeric Biomaterials. Biomed Mater 2021. [DOI: 10.1007/978-3-030-49206-9_2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
10
|
Sergi R, Bellucci D, Cannillo V. A Review of Bioactive Glass/Natural Polymer Composites: State of the Art. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E5560. [PMID: 33291305 PMCID: PMC7730917 DOI: 10.3390/ma13235560] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 12/02/2020] [Accepted: 12/04/2020] [Indexed: 02/07/2023]
Abstract
Collagen, gelatin, silk fibroin, hyaluronic acid, chitosan, alginate, and cellulose are biocompatible and non-cytotoxic, being attractive natural polymers for medical devices for both soft and hard tissues. However, such natural polymers have low bioactivity and poor mechanical properties, which limit their applications. To tackle these drawbacks, collagen, gelatin, silk fibroin, hyaluronic acid, chitosan, alginate, and cellulose can be combined with bioactive glass (BG) nanoparticles and microparticles to produce composites. The incorporation of BGs improves the mechanical properties of the final system as well as its bioactivity and regenerative potential. Indeed, several studies have demonstrated that polymer/BG composites may improve angiogenesis, neo-vascularization, cells adhesion, and proliferation. This review presents the state of the art and future perspectives of collagen, gelatin, silk fibroin, hyaluronic acid, chitosan, alginate, and cellulose matrices combined with BG particles to develop composites such as scaffolds, injectable fillers, membranes, hydrogels, and coatings. Emphasis is devoted to the biological potentialities of these hybrid systems, which look rather promising toward a wide spectrum of applications.
Collapse
Affiliation(s)
| | | | - Valeria Cannillo
- Dipartimento di Ingegneria Enzo Ferrari, Università degli Studi di Modena e Reggio Emilia, Via P. Vivarelli 10, 41125 Modena, Italy; (R.S.); (D.B.)
| |
Collapse
|
11
|
Mohammad M, Ahmadpoor F, Shojaosadati SA. Mussel-Inspired Magnetic Nanoflowers as an Effective Nanozyme and Antimicrobial Agent for Biosensing and Catalytic Reduction of Organic Dyes. ACS OMEGA 2020; 5:18766-18777. [PMID: 32775878 PMCID: PMC7408242 DOI: 10.1021/acsomega.0c01864] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 07/03/2020] [Indexed: 05/08/2023]
Abstract
Mussel-inspired chemistry has been embodied as a method for acquiring multifunctional nanostructures. In this research, a novel mussel-inspired magnetic nanoflower was prepared through a mussel-inspired approach. Herein, magnetic PDA-Cu nanoflowers (NFs) were assembled via incorporating magnetic Fe3O4@SiO2-NH2 core/shell nanoparticles (NPs) into mussel-inspired polydopamine (PDA) and copper phosphate as the organic and inorganic portions, respectively. Accordingly, the flower-like morphology of MNPs PDA-Cu NFs was characterized by scanning electron microscopy (SEM) images. X-ray diffraction (XRD) analysis confirmed the crystalline structure of magnetic nanoparticles (MNPs) and copper phosphate. Vibrating sample magnetometer (VSM) data revealed the superparamagnetic behavior of MNPs (40.5 emu/g) and MNPs PDA-Cu NFs (35.4 emu/g). Catalytic reduction of MNPs PDA-Cu NFs was evaluated through degradation of methylene blue (MB). The reduction of MB pursued the Langmuir-Hinshelwood mechanism and first-order kinetics, in which the apparent reduction rate K app of MB was higher than 1.44 min-1 and the dye degradation ability was 100%. MNPs PDA-Cu NFs also showed outstanding recyclability and reduction efficiency, for at least six cycles. Furthermore, the prepared MNPs PDA-Cu NFs demonstrated a peroxidase-like catalytic activity for catalyzing 3,3',5,5'-tetramethylbenzidine (TMB) to a blue oxidized TMB (oxTMB) solution in the presence of H2O2. Antimicrobial assays for MNPs PDA-Cu and PDA-Cu NFs were conducted on both Gram-negative and Gram-positive bacteria. Moreover, we demonstrated how the existence of magnetic nanoparticles in PDA-Cu NFs influences the inhibition of an increasing zone. Based on the results, mussel-inspired magnetic nanoflowers appear to have great potential applications, including those relevant to biological, catalysis, and environmental research.
Collapse
Affiliation(s)
- Mahsa Mohammad
- Biotechnology
Group, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran 14155-114, Iran
| | - Fatemeh Ahmadpoor
- Department
of Materials Engineering, Tarbiat Modares University, Tehran 14115-143, Iran
| | - Seyed Abbas Shojaosadati
- Biotechnology
Group, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran 14155-114, Iran
| |
Collapse
|
12
|
Bao L, Li X, Qi Y, Wang Z, Li J. PEG/SBA-15-containing acrylic bone cement with enhanced drug release. Chem Eng Sci 2020. [DOI: 10.1016/j.ces.2019.115379] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
|
13
|
Degeratu CN, Mabilleau G, Aguado E, Mallet R, Chappard D, Cincu C, Stancu IC. Polyhydroxyalkanoate (PHBV) fibers obtained by a wet spinning method: Good in vitro cytocompatibility but absence of in vivo biocompatibility when used as a bone graft. Morphologie 2019; 103:94-102. [PMID: 30905592 DOI: 10.1016/j.morpho.2019.02.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 02/21/2019] [Accepted: 02/25/2019] [Indexed: 06/09/2023]
Abstract
Polyhydroxyalkanoates (PHAs) are biomaterials widely investigated for tissue-engineering applications. In this regard, we describe a method to prepare fibers of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) by a wet-spinning technique. Polymer fibers were used to test the cytocompatibility of the material in vitro. We have investigated their behavior in vitro in presence of the osteoblast-like (SaOs2) and macrophage (J774.2) cell lines. The PHBV fibers used were 100-200μm in diameter and offered a large surface for cell adhesion, similar to that they encounter when apposed onto a bone trabeculae. The fiber surface possessed a suitable roughness, a factor known to favor the adherence of cells, particularly osteoblasts. PHBV fibers were degraded in vitro by J774.2 cells as erosion pits were observable by transmission electron microscopy. The fibers were also colonisable by SaOs2 cells, which can spread and develop onto their surface. However, despite this good cytocompatibility observed in vitro, implantation in a bone defect drilled in rabbit femoral condyles showed that the material was only biotolerated without any sign of osteoconduction or degradation in vivo. We can conclude that PHBV is cytocompatible but is not suitable to be used as a bone graft as it does not favor osteoconduction and is not resorbed by bone marrow macrophages.
Collapse
Affiliation(s)
- C N Degeratu
- University Politehnica of Bucharest, Faculty of Applied Chemistry and Materials Science, Department of Bioresources and Polymer Science, 1-7 Gh Polizu, district 1, 011061 Bucharest, Romania; Groupe études remodelage osseux et biomatériaux, GEROM, EA-4658, SFR-4208, université d'Angers, IRIS-IBS institut de biologie en santé, CHU d'Angers, 49933 Angers, France
| | - G Mabilleau
- Groupe études remodelage osseux et biomatériaux, GEROM, EA-4658, SFR-4208, université d'Angers, IRIS-IBS institut de biologie en santé, CHU d'Angers, 49933 Angers, France; Service commun d'imagerie et analyses microscopiques, SCIAM, SFR-4208, université d'Angers, IRIS-IBS institut de biologie en santé, CHU d'Angers, 49933 Angers cedex, France
| | - E Aguado
- ONIRIS, École vétérinaire de Nantes, 44307 Nantes cedex 3, France
| | - R Mallet
- Groupe études remodelage osseux et biomatériaux, GEROM, EA-4658, SFR-4208, université d'Angers, IRIS-IBS institut de biologie en santé, CHU d'Angers, 49933 Angers, France; Service commun d'imagerie et analyses microscopiques, SCIAM, SFR-4208, université d'Angers, IRIS-IBS institut de biologie en santé, CHU d'Angers, 49933 Angers cedex, France
| | - D Chappard
- Groupe études remodelage osseux et biomatériaux, GEROM, EA-4658, SFR-4208, université d'Angers, IRIS-IBS institut de biologie en santé, CHU d'Angers, 49933 Angers, France; Service commun d'imagerie et analyses microscopiques, SCIAM, SFR-4208, université d'Angers, IRIS-IBS institut de biologie en santé, CHU d'Angers, 49933 Angers cedex, France.
| | - C Cincu
- University Politehnica of Bucharest, Faculty of Applied Chemistry and Materials Science, Department of Bioresources and Polymer Science, 1-7 Gh Polizu, district 1, 011061 Bucharest, Romania
| | - I C Stancu
- University Politehnica of Bucharest, Faculty of Applied Chemistry and Materials Science, Department of Bioresources and Polymer Science, 1-7 Gh Polizu, district 1, 011061 Bucharest, Romania
| |
Collapse
|
14
|
Bakry A. Synergistic effects of surface grafting with heparin and addition of poly(
d
,
l
‐lactide) microparticles on properties of poly(
l
‐lactide) single crystals scaffolds. J Appl Polym Sci 2019. [DOI: 10.1002/app.47797] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ahmed Bakry
- Faculty of Science, Chemistry DepartmentHelwan University Ain Helwan 11795 Cairo Egypt
| |
Collapse
|
15
|
Rivera-Briso AL, Serrano-Aroca Á. Poly(3-Hydroxybutyrate- co-3-Hydroxyvalerate): Enhancement Strategies for Advanced Applications. Polymers (Basel) 2018; 10:E732. [PMID: 30960657 PMCID: PMC6403723 DOI: 10.3390/polym10070732] [Citation(s) in RCA: 123] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 06/28/2018] [Accepted: 06/29/2018] [Indexed: 01/21/2023] Open
Abstract
Poly(3-hydroxybutyrate-co-3-hydroxyvalerate), PHBV, is a microbial biopolymer with excellent biocompatible and biodegradable properties that make it a potential candidate for substituting petroleum-derived polymers. However, it lacks mechanical strength, water sorption and diffusion, electrical and/or thermal properties, antimicrobial activity, wettability, biological properties, and porosity, among others, limiting its application. For this reason, many researchers around the world are currently working on how to overcome the drawbacks of this promising material. This review summarises the main advances achieved in this field so far, addressing most of the chemical and physical strategies to modify PHBV and placing particular emphasis on the combination of PHBV with other materials from a variety of different structures and properties, such as other polymers, natural fibres, carbon nanomaterials, nanocellulose, nanoclays, and nanometals, producing a wide range of composite biomaterials with increased potential applications. Finally, the most important methods to fabricate porous PHBV scaffolds for tissue engineering applications are presented. Even though great advances have been achieved so far, much research needs to be conducted still, in order to find new alternative enhancement strategies able to produce advanced PHBV-based materials able to overcome many of these challenges.
Collapse
Affiliation(s)
- Ariagna L Rivera-Briso
- Escuela de Doctorado, Universidad Católica de Valencia San Vicente Mártir, C/Guillem de Castro 65, 46008 Valencia, Spain.
| | - Ángel Serrano-Aroca
- Facultad de Veterinaria y Ciencias Experimentales, Universidad Católica de Valencia San Vicente Mártir, C/Guillem de Castro 94, 46001 Valencia, Spain.
| |
Collapse
|
16
|
Surface Modification of SPIONs in PHBV Microspheres for Biomedical Applications. Sci Rep 2018; 8:7286. [PMID: 29739955 PMCID: PMC5940902 DOI: 10.1038/s41598-018-25243-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Accepted: 04/15/2018] [Indexed: 01/09/2023] Open
Abstract
Surface modification of superparamagnetic iron oxide nanoparticles (SPIONs) has been introduced with lauric acid and oleic acid via co-precipitation and thermal decomposition methods, respectively. This modification is required to increase the stability of SPIONs when incorporated in hydrophobic, biodegradable and biocompatible polymers such as poly (3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV). In this work, the solid-in-oil-in-water (S/O/W) emulsion-solvent extraction/evaporation method was utilized to fabricate magnetic polymer microspheres incorporating SPIONs in PHBV. The prepared magnetic PHBV microspheres exhibited particle sizes <1 µm. The presence of functional groups of lauric acid, oleic acid and iron oxide in the PHBV microspheres was confirmed by Fourier Transform Infrared spectroscopy (FTIR). X-ray diffraction (XRD) analysis was performed to further confirm the success of the combination of modified SPIONs and PHBV. Thermogravimetric analysis (TGA) indicated that PHBV microspheres were incorporated with SPIONsLauric as compared with SPIONsOleic. This was also proven via magnetic susceptibility measurement as a higher value of this magnetic property was detected for PHBV/SPIONsLauric microspheres. It was revealed that the magnetic PHBV microspheres were non-toxic when assessed with mouse embryotic fibroblast cells (MEF) at different concentrations of microspheres. These results confirmed that the fabricated magnetic PHBV microspheres are potential candidates for use in biomedical applications.
Collapse
|
17
|
Lepowsky E, Tasoglu S. Emerging Anti-Fouling Methods: Towards Reusability of 3D-Printed Devices for Biomedical Applications. MICROMACHINES 2018; 9:E196. [PMID: 30424129 PMCID: PMC6187557 DOI: 10.3390/mi9040196] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 04/07/2018] [Accepted: 04/19/2018] [Indexed: 12/21/2022]
Abstract
Microfluidic devices are used in a myriad of biomedical applications such as cancer screening, drug testing, and point-of-care diagnostics. Three-dimensional (3D) printing offers a low-cost, rapid prototyping, efficient fabrication method, as compared to the costly-in terms of time, labor, and resources-traditional fabrication method of soft lithography of poly(dimethylsiloxane) (PDMS). Various 3D printing methods are applicable, including fused deposition modeling, stereolithography, and photopolymer inkjet printing. Additionally, several materials are available that have low-viscosity in their raw form and, after printing and curing, exhibit high material strength, optical transparency, and biocompatibility. These features make 3D-printed microfluidic chips ideal for biomedical applications. However, for developing devices capable of long-term use, fouling-by nonspecific protein absorption and bacterial adhesion due to the intrinsic hydrophobicity of most 3D-printed materials-presents a barrier to reusability. For this reason, there is a growing interest in anti-fouling methods and materials. Traditional and emerging approaches to anti-fouling are presented in regard to their applicability to microfluidic chips, with a particular interest in approaches compatible with 3D-printed chips.
Collapse
Affiliation(s)
- Eric Lepowsky
- Department of Mechanical Engineering, University of Connecticut, Storrs, CT 06269, USA.
| | - Savas Tasoglu
- Department of Mechanical Engineering, University of Connecticut, Storrs, CT 06269, USA.
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT 06269, USA.
- Institute of Materials Science, University of Connecticut, Storrs, CT 06269, USA.
- Institute for Collaboration on Health, Intervention, and Policy, University of Connecticut, Storrs, CT 06269, USA.
- The Connecticut Institute for the Brain and Cognitive Sciences, University of Connecticut, Storrs, CT 06269, USA.
| |
Collapse
|
18
|
Giavaresi G, Tschon M, Daly JH, Liggat JJ, Fini M, Torricelli P, Giardino R. Natural and Synthetic Polyesters for Musculoskeletal Tissue Repair: Experimental in Vitro and in Vivo Evaluations. Int J Artif Organs 2018; 27:796-805. [PMID: 15521220 DOI: 10.1177/039139880402700910] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Two natural Biopol™ polyesters, containing 8% (D400G) and 12% (D600G) of hydroxyvalerate component, and a synthetic polyester based on 1,4 cyclohexanediol [Poly(cyclohexyl-sebacate) - PCS] were studied to investigate their in vitro and in vivo behavior for application in musculoskeletal tissue repair. The polyesters were placed in direct contact with L929 fibroblasts and cell proliferation (WST-1), cytotoxic effect (LDH), synthetic activity (total proteins) and cytokine production (IL-1β, IL-6, TNFα) were assessed after an incubation period of 72 hours and 7 days. Then, 12 Sprague-Dawley rats underwent dorsal subcutaneous implants of tested polyesters under general anesthesia. After 1 and 4 weeks from surgery, the animals were pharmacologically euthanized and the implants retrieved with surrounding tissue for histologic and histomorphometric investigations. In vitro results showed that D600G behaved a little worse in comparison to other tested polyesters in terms of cell proliferation and TNFα at 7 days. PCS presented the lowest total protein value at 7 days. In vivo results indicated that PCS implants produced a higher (p < 0.01) extent of inflammatory tissue in comparison to D600G at 1 week and to D400G at 4 weeks, and the lowest vascular densities at both experimental times. D400G seems to be the most suitable material for biomedical application when tested in fibroblast cultures and in the subcutaneous tissue of rats.
Collapse
Affiliation(s)
- G Giavaresi
- Department of Experimental Surgery, Research Institute Codivilla-Putti, Rizzoli Orthopedic Institute, Bologna, Italy.
| | | | | | | | | | | | | |
Collapse
|
19
|
Mohapatra S, Sarkar B, Samantaray DP, Daware A, Maity S, Pattnaik S, Bhattacharjee S. Bioconversion of fish solid waste into PHB using Bacillus subtilis based submerged fermentation process. ENVIRONMENTAL TECHNOLOGY 2017; 38:3201-3208. [PMID: 28162048 DOI: 10.1080/09593330.2017.1291759] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Currently, one of the major problem affecting the world is solid waste management, predominantly petroleum-based plastic and fish solid waste (FSW). However, it is very difficult to reduce the consumption of plastic as well as fish products, but it is promising to convert FSW to biopolymer to reduce eco-pollution. On account of that, the bioconversion of FSW extract to polyhydroxybutyrate (PHB) was undertaken by using Bacillus subtilis (KP172548). Under optimized conditions, 1.62 g/L of PHB has been produced by the bacterium. The purified compound was further characterized by advanced analytical technologies to elucidate its chemical structure. Results indicated that the biopolymer was found to be PHB, the most common homopolymer of polyhydroxyalkanoates (PHAs). This is the first report demonstrating the efficacy of B. subtilis to utilize FSW extract to produce biopolymer. The biocompatibility of the PHB against murine macrophage cell line RAW264.7 demonstrated that, it was comparatively less toxic, favourable for surface attachment and proliferation in comparison with poly-lactic acid (PLA) and commercially available PHB. Thus, further exploration is highly indispensable to use FSW extract as a substrate for production of PHB at pilot scale.
Collapse
Affiliation(s)
- S Mohapatra
- a Department of Biotechnology , Indian Institute of Technology , Roorke , India
| | - B Sarkar
- b ICAR-Indian Institute of Agricultural Biotechnology, IINRG Campus , Ranchi , Jharkhand , India
| | - D P Samantaray
- c Department of Microbiology , Orissa University of Agriculture and Technology , Bhubaneswar , Odisha, India
| | - A Daware
- d Department of Molecular Biology and Bioinformatics , Tripura University , Agartala , Tripura , India
| | - S Maity
- c Department of Microbiology , Orissa University of Agriculture and Technology , Bhubaneswar , Odisha, India
| | - S Pattnaik
- c Department of Microbiology , Orissa University of Agriculture and Technology , Bhubaneswar , Odisha, India
| | - S Bhattacharjee
- d Department of Molecular Biology and Bioinformatics , Tripura University , Agartala , Tripura , India
| |
Collapse
|
20
|
Velasquillo C, Silva-Bermudez P, Vázquez N, Martínez A, Espadín A, García-López J, Medina-Vega A, Lecona H, Pichardo-Baena R, Ibarra C, Shirai K. In vitro
and in vivo
assessment of lactic acid-modified chitosan scaffolds for potential treatment of full-thickness burns. J Biomed Mater Res A 2017; 105:2875-2891. [DOI: 10.1002/jbm.a.36132] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Accepted: 05/26/2017] [Indexed: 12/23/2022]
Affiliation(s)
- Cristina Velasquillo
- Biotecnología, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra; Av. México Xochimilco No. 289 Col. Arenal de Guadalupe C.P. 14389 Ciudad de México México
| | - Phaedra Silva-Bermudez
- Unidad de Ingeniería de Tejidos, Terapia Celular y Medicina Regenerativa, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra; Av. México Xochimilco No. 289 Col. Arenal de Guadalupe C.P. 14389 Ciudad de México México
| | - Nadia Vázquez
- Biotecnología, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra; Av. México Xochimilco No. 289 Col. Arenal de Guadalupe C.P. 14389 Ciudad de México México
- Posgrado en Ciencias Biológicas, Universidad Nacional Autónoma de México. Ciudad Universitaria; No. 3000, C.P. 04360 Ciudad de México México
| | - Alan Martínez
- Biotecnología, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra; Av. México Xochimilco No. 289 Col. Arenal de Guadalupe C.P. 14389 Ciudad de México México
| | - Andres Espadín
- Departamento de Biotecnología, Laboratorio de Biopolímeros; Universidad Autónoma Metropolitana Unidad Iztapalapa; San Rafael Atlixco No. 186 Col. Vicentina C.P. 09340 Ciudad de México México
| | - Julieta García-López
- Unidad de Ingeniería de Tejidos, Terapia Celular y Medicina Regenerativa, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra; Av. México Xochimilco No. 289 Col. Arenal de Guadalupe C.P. 14389 Ciudad de México México
| | - Antonio Medina-Vega
- Cirugía Pediátrica, Instituto Nacional de Pediatría; Insurgentes Sur No. 3700, Letra C, CP. 04530 Ciudad de México México
| | - Hugo Lecona
- Bioterio y Cirugía Experimental, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra; Av. México Xochimilco No. 289 Col. Arenal de Guadalupe C.P. 14389 Ciudad de México México
| | - Raúl Pichardo-Baena
- Servicio de Anatomía Patológica y Microscopia Electrónica, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra; Av. México Xochimilco No. 289 Col. Arenal de Guadalupe C.P.14389 Ciudad de México México
| | - Clemente Ibarra
- Unidad de Ingeniería de Tejidos, Terapia Celular y Medicina Regenerativa, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra; Av. México Xochimilco No. 289 Col. Arenal de Guadalupe C.P. 14389 Ciudad de México México
| | - Keiko Shirai
- Departamento de Biotecnología, Laboratorio de Biopolímeros; Universidad Autónoma Metropolitana Unidad Iztapalapa; San Rafael Atlixco No. 186 Col. Vicentina C.P. 09340 Ciudad de México México
| |
Collapse
|
21
|
Salama HE, Saad GR, Sabaa MW. Synthesis, characterization and antimicrobial activity of biguanidinylated chitosan- g -poly[( R )-3-hydroxybutyrate]. Int J Biol Macromol 2017; 101:438-447. [DOI: 10.1016/j.ijbiomac.2017.03.075] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Revised: 12/14/2016] [Accepted: 03/14/2017] [Indexed: 11/24/2022]
|
22
|
Xiao D, Wang Q, Yan H, Qin A, Lv X, Zhao Y, Zhang M, Zhou Z, Xu J, Hu Q, Lu M. Comparison of morphological and functional restoration between asymmetric bilayer chitosan and bladder acellular matrix graft for bladder augmentation in a rat model. RSC Adv 2017. [DOI: 10.1039/c7ra07601k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Asymmetric bilayer chitosan promoted bladder reconstruction with enhanced smooth muscle regeneration and angiogenesis, and functional restoration with augmented bladder capacity.
Collapse
|
23
|
Chen WC, Chen CH, Tseng HW, Liu YW, Chen YP, Lee CH, Kuo YJ, Hsu CH, Sun YM. Surface functionalized electrospun fibrous poly(3-hydroxybutyrate) membranes and sleeves: a novel approach for fixation in anterior cruciate ligament reconstruction. J Mater Chem B 2016; 5:553-564. [PMID: 32263671 DOI: 10.1039/c6tb02671k] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Effective osteointegration for fixation of the tendon to bone junction is the most important issue in anterior cruciate ligament (ACL) reconstruction. In this study, functionalized electrospun poly(3-hydroxybutyrate) (PHB) membranes and sleeves were prepared and evaluated for the fixation of the tendon to bone junction. The electrospun fibrous PHB membranes were modified with hydrogen peroxide, dopamine (DA), chitosan (CS), glutaraldehyde (GA), and then immobilized with growth factors (GFs) from platelet rich plasma (PRP). The water-contact angle measurement showed enhanced wettability in the membranes after the sequential surface functionalization. Successful graftings of DA, CS and GFs from PRP on the membrane surface were demonstrated using X-ray photoelectron spectroscopy (XPS). The ninhydrin assay revealed the amount of immobilized TGF-β1 and PDFG-AB. The modified membranes showed good biocompatibility in an in vitro rabbit tenocyte cultivation study, as the cells showed good attachment and proliferation activity. Significant increases in extracellular matrix and gene expression of type I collagen were observed when the membrane surface was treated with the GFs from PRP. In a rabbit model, the tendon to bone junction was filled with newly formed fibrocartilage and osteointegration behavior was observed. This suggests that the use of functionalized PHB sleeves can enhance tendon to bone healing and the tendon sleeves might provide a novel method for ACL reconstruction.
Collapse
Affiliation(s)
- Wei-Chuan Chen
- Bone and Joint Research Center, Department of Orthopedics and Traumatology, Taipei Medical University Hospital, Taipei 11031, Taiwan, Republic of China
| | | | | | | | | | | | | | | | | |
Collapse
|
24
|
Pramanik N, Dutta K, Basu RK, Kundu PP. Aromatic π-Conjugated Curcumin on Surface Modified Polyaniline/Polyhydroxyalkanoate Based 3D Porous Scaffolds for Tissue Engineering Applications. ACS Biomater Sci Eng 2016; 2:2365-2377. [DOI: 10.1021/acsbiomaterials.6b00595] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nilkamal Pramanik
- Advanced
Polymer Laboratory, Department of Polymer Science and Technology, University of Calcutta, 92, A.P.C. Road, Kolkata-700 009, India
| | - Kingshuk Dutta
- Advanced
Polymer Laboratory, Department of Polymer Science and Technology, University of Calcutta, 92, A.P.C. Road, Kolkata-700 009, India
| | - Ranjan K. Basu
- Department
of Chemical Engineering, University of Calcutta, 92, A.P.C. Road, Kolkata-700 009, India
| | - Patit P. Kundu
- Advanced
Polymer Laboratory, Department of Polymer Science and Technology, University of Calcutta, 92, A.P.C. Road, Kolkata-700 009, India
- Department
of Chemical Engineering, Indian Institute of Technology (IIT) Roorkee, Roorkee, Uttarakhand-247667, India
| |
Collapse
|
25
|
Pourmollaabbassi B, Karbasi S, Hashemibeni B. Evaluate the growth and adhesion of osteoblast cells on nanocomposite scaffold of hydroxyapatite/titania coated with poly hydroxybutyrate. Adv Biomed Res 2016; 5:156. [PMID: 27761431 PMCID: PMC5070039 DOI: 10.4103/2277-9175.188486] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Accepted: 05/29/2016] [Indexed: 11/09/2022] Open
Abstract
Background: The generation of bioartificial bone tissues may help to overcome the problems related to donor site morbidity and size limitations. Materials and Methods: In this paper, hydroxyapatite (HA) powder was made out of bovine bone by thermal analysis at 900°C and first, and then, porous HA (50 weight percentage) was produced by polyurethane sponge replication method. In order to improve the scaffold mechanical properties, they have been coated with poly hydroxybutyrate. In terms of phase studies, morphology, and specifying agent groups, the specific characterization devices such as X-ray diffraction and Fourier transform infrared, were employed. To compare the behavior of cellular scaffolds, they were divided into four groups of scaffolds. The osteoblast cells were cultured. To perform phase studies, analysis of Methylthiazole tetrazolium (MTT) and Trypan blue were carried out for the viability and attachment on the surface of the scaffold, and the specification of Scanning electron microscopy was employed for the morphology of the cells. Results: The results of MTT analysis performed on four groups of scaffolds have shown that Titanium oxide (Tio2) had no effect on cell growth alone and HA was the main factor of growth and cell osteoblast adhesion on the scaffold. Moreover, the results showed that the use of coating with poly-3-hydroxybutyrate saved the factors and placed the osteoblasts within the pore. Since the main part of bone consists of HA, the TiO2 accelerates the formation of apatite crystals at the scaffold surface which is the evidence for bone tissue regeneration. Conclusions: It is likely that the relation between HA and TiO2 leads to an increase in osteoblast adhesion and growth of cells on the scaffold surface.
Collapse
Affiliation(s)
- Babak Pourmollaabbassi
- Department of Tissue Engineering, Faculty of Basic Science and Nuclear Engineering, Islamic Azad University, Najafabad Branch, Najafabad, Iran
| | - Saeed Karbasi
- Department of Biomaterials and Tissue Engineering, School of Advance Technology in Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Batool Hashemibeni
- Department of Anatomical Sciences, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| |
Collapse
|
26
|
Lewis G. Properties of nanofiller-loaded poly (methyl methacrylate) bone cement composites for orthopedic applications: a review. J Biomed Mater Res B Appl Biomater 2016; 105:1260-1284. [DOI: 10.1002/jbm.b.33643] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Revised: 11/09/2015] [Accepted: 02/12/2016] [Indexed: 12/28/2022]
Affiliation(s)
- Gladius Lewis
- Department of Mechanical Engineering; The University of Memphis; Memphis, 316 Engineering Science Building Tennessee 38152
| |
Collapse
|
27
|
Olkhov AA, Kosenko RY, Goldshtrakh MA, Markin VS, Ischenko AA, Iordanskii AL. Diffusive transport of drugs from film matrices. THEORETICAL FOUNDATIONS OF CHEMICAL ENGINEERING 2015. [DOI: 10.1134/s0040579515060068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
28
|
Huang Y, Huang J, Cai J, Lin W, Lin Q, Wu F, Luo J. Carboxymethyl chitosan/clay nanocomposites and their copper complexes: Fabrication and property. Carbohydr Polym 2015; 134:390-7. [DOI: 10.1016/j.carbpol.2015.07.089] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2015] [Revised: 07/25/2015] [Accepted: 07/28/2015] [Indexed: 11/16/2022]
|
29
|
Improvement of the surface wettability of silicone hydrogel contact lenses via layer-by-layer self-assembly technique. Colloids Surf B Biointerfaces 2015; 136:735-43. [DOI: 10.1016/j.colsurfb.2015.10.006] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Revised: 08/27/2015] [Accepted: 10/05/2015] [Indexed: 11/23/2022]
|
30
|
Chitooligosaccharide Inhibits Scar Formation and Enhances Functional Recovery in a Mouse Model of Sciatic Nerve Injury. Mol Neurobiol 2015; 53:2249-57. [PMID: 25972239 DOI: 10.1007/s12035-015-9196-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2014] [Accepted: 04/22/2015] [Indexed: 10/23/2022]
Abstract
Chitooligosaccharide (COS) has been shown to induce fibroblast apoptosis, indicating that it could be used as a material to inhibit scar formation. In the present study, we used a mouse model of sciatic nerve injury (SNI) to determine the role of COS in scar inhibition and functional recovery. The animals were divided into three groups: SNI, SNI + vehicle, and SNI + COS group. We performed a series of functional and histological examinations at ctrl, 0 min, 14 days, and 42 days, including behavioral recovery, percentage of regenerating axons, degree of scar formation, vascular changes, type I and type III collagen ratio, and percentage of demyelinated axons. The SNI + COS group exhibited better recovery of sensory and motor function and less scar formation. Two-photon microscopy showed that the percentage of regenerating axons was highest in the SNI + COS group at 14 and 42 days. Our results suggested that COS can inhibit scar formation and enhance functional recovery by inducing fibroblast death, altering the proportion of different vascular diameters, changing the ratio of type I/type III collagen, and reducing the percentage of demyelinated axons. COS might be a useful drug in the treatment of SNI to reduce scar formation, but additional research is required to clarify the relevant molecular pathways.
Collapse
|
31
|
Anti-fouling Coatings of Poly(dimethylsiloxane) Devices for Biological and Biomedical Applications. J Med Biol Eng 2015; 35:143-155. [PMID: 25960703 PMCID: PMC4414934 DOI: 10.1007/s40846-015-0029-4] [Citation(s) in RCA: 211] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Accepted: 01/13/2014] [Indexed: 01/07/2023]
Abstract
Fouling initiated by nonspecific protein adsorption is a great challenge in biomedical applications, including biosensors, bioanalytical devices, and implants. Poly(dimethylsiloxane) (PDMS), a popular material with many attractive properties for device fabrication in the biomedical field, suffers serious fouling problems from protein adsorption due to its hydrophobic nature, which limits the practical use of PDMS-based devices. Effort has been made to develop biocompatible materials for anti-fouling coatings of PDMS. In this review, typical nonfouling materials for PDMS coatings are introduced and the associated basic anti-fouling mechanisms, including the steric repulsion mechanism and the hydration layer mechanism, are described. Understanding the relationships between the characteristics of coating materials and the accompanying anti-fouling mechanisms is critical for preparing PDMS coatings with desirable anti-fouling properties.
Collapse
|
32
|
Masaeli E, Wieringa PA, Morshed M, Nasr-Esfahani MH, Sadri S, van Blitterswijk CA, Moroni L. Peptide functionalized polyhydroxyalkanoate nanofibrous scaffolds enhance Schwann cells activity. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2014; 10:1559-69. [DOI: 10.1016/j.nano.2014.04.008] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2013] [Revised: 03/19/2014] [Accepted: 04/20/2014] [Indexed: 12/18/2022]
|
33
|
Shim JB, Ankeny RF, Kim H, Nerem RM, Khang G. A study of a three-dimensional PLGA sponge containing natural polymers co-cultured with endothelial and mesenchymal stem cells as a tissue engineering scaffold. Biomed Mater 2014; 9:045015. [PMID: 25065725 DOI: 10.1088/1748-6041/9/4/045015] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The interaction between vascular endothelial cells (ECs) and vascular smooth muscle cells (VSMCs) in a complex hemodynamic and mechanical environment plays an important role in the control of blood vessel growth and function. Despite the importance of VSMCs, substitutes are needed for vascular therapies. A potential VSMC substitute is human adult bone marrow derived mesenchymal stem cells (hMSCs). In this study, the effect of poly(lactic-co-glycolic acid) (PLGA) scaffolds containing three natural polymers (demineralized bone particles, silk, and small intestine submucosa) on the phenotype of MSCs and SMCs cultured with or without ECs was investigated. The study objective was to create a media equivalent for a tissue engineered blood vessel using PLGA, natural polymers, and MSCs co-cultured with ECs. The PLGA containing the natural polymers silk and SIS showed increased proliferation and cell adhesion. The presence of silk and DBP promoted a MSC phenotype change into a SMC-like phenotype at the mRNA level; however these differences at the protein level were not seen. Additionally, PLGA containing SIS did not induce SMC gene or protein upregulation. Finally, the effect of ECs in combination with the natural polymers was tested. When co-cultured with ECs, the mRNA of SMC specific markers in MSCs and SMCs were increased when compared to SMCs or MSCs alone. However, MSCs, when co-cultured with ECs on PLGA containing silk, exhibited significantly increased α-SMA and calponin expression when compared to PLGA only scaffolds. These results indicate that the natural polymer silk in combination with the co-culture of endothelial cells was most effective at increasing cell viability and inducing a SMC-like phenotype at the mRNA and protein level in MSCs.
Collapse
Affiliation(s)
- Jung Bo Shim
- Department of BIN Fusion Technology & Polymer Fusion Research Center, Chonbuk National University, Jeonju, Republic of Korea
| | | | | | | | | |
Collapse
|
34
|
Yuan S, Li Z, Zhao J, Luan S, Ma J, Song L, Shi H, Jin J, Yin J. Enhanced biocompatibility of biostable poly(styrene-b-isobutylene-b-styrene) elastomer via poly(dopamine)-assisted chitosan/hyaluronic acid immobilization. RSC Adv 2014. [DOI: 10.1039/c4ra04523h] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
35
|
Dielectric properties: a gateway to antibacterial assay—a case study of low-density polyethylene/chitosan composite films. Polym J 2014. [DOI: 10.1038/pj.2014.19] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
36
|
Bakare RA, Bhan C, Raghavan D. Synthesis and Characterization of Collagen Grafted Poly(hydroxybutyrate–valerate) (PHBV) Scaffold for Loading of Bovine Serum Albumin Capped Silver (Ag/BSA) Nanoparticles in the Potential Use of Tissue Engineering Application. Biomacromolecules 2013; 15:423-35. [DOI: 10.1021/bm401686v] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Rotimi A. Bakare
- Polymer Group, Department
of Chemistry, Howard University, Washington, D.C. 20059, United States
| | - Chandra Bhan
- Polymer Group, Department
of Chemistry, Howard University, Washington, D.C. 20059, United States
| | - Dharmaraj Raghavan
- Polymer Group, Department
of Chemistry, Howard University, Washington, D.C. 20059, United States
| |
Collapse
|
37
|
Chen Y, Chou IN, Tsai YH, Wu HS. Thermal degradation of poly(3-hydroxybutyrate) and poly(3-hydroxybutyrate-co-3-hydroxyvalerate) in drying treatment. J Appl Polym Sci 2013. [DOI: 10.1002/app.39616] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
| | - I-Ning Chou
- Department of Chemical Engineering and Materials Science; Yuan Ze University; Chung-Li; Taoyuan; 32003; Taiwan
| | - Ya-Hui Tsai
- Department of Surgery; Far Eastern Memorial Hospital; Pan-Chiao; New Taipei; 220; Taiwan
| | - Ho-Shing Wu
- Department of Chemical Engineering and Materials Science; Yuan Ze University; Chung-Li; Taoyuan; 32003; Taiwan
| |
Collapse
|
38
|
Khang G, Lee SK, Kim HN, Silva-Correia J, Gomes ME, Viegas CAA, Dias IR, Oliveira JM, Reis RL. Biological evaluation of intervertebral disc cells in different formulations of gellan gum-based hydrogels. J Tissue Eng Regen Med 2012; 9:265-75. [PMID: 23225767 DOI: 10.1002/term.1625] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2012] [Accepted: 08/28/2012] [Indexed: 11/07/2022]
Abstract
Gellan gum (GG)-based hydrogels are advantageous in tissue engineering not only due to their ability to retain large quantities of water and provide a similar environment to that of natural extracellular matrix (ECM), but also because they can gelify in situ in seconds. Their mechanical properties can be fine-tuned to mimic natural tissues such as the nucleus pulposus (NP). This study produced different formulations of GG hydrogels by mixing varying amounts of methacrylated (GG-MA) and high-acyl gellan gums (HA-GG) for applications as acellular and cellular NP substitutes. The hydrogels were physicochemically characterized by dynamic mechanical analysis. Degradation and swelling abilities were assessed by soaking in a phosphate buffered saline solution for up to 170 h. Results showed that as HA-GG content increased, the modulus of the hydrogels decreased. Moreover, increases in HA-GG content induced greater weight loss in the GG-MA/HA-GG formulation compared to GG-MA hydrogel. Potential cytotoxicity of the hydrogel was assessed by culturing rabbit NP cells up to 7 days. An MTS assay was performed by seeding rabbit NP cells onto the surface of 3D hydrogel disc formulations. Viability of rabbit NP cells encapsulated within the different hydrogel formulations was also evaluated by Calcein-AM and ATP assays. Results showed that tunable GG-MA/HA-GG hydrogels were non-cytotoxic and supported viability of rabbit NP cells.
Collapse
Affiliation(s)
- G Khang
- Chonbuk National University, Department of Polymer-Nano Science and Technology, Jeonju, Korea; Chonbuk National University, Department of BIN Fusion Technology, Jeonju, Korea
| | | | | | | | | | | | | | | | | |
Collapse
|
39
|
Li H, Chen C, Zhang S, Jiang J, Tao H, Xu J, Sun J, Zhong W, Chen S. The use of layer by layer self-assembled coatings of hyaluronic acid and cationized gelatin to improve the biocompatibility of poly(ethylene terephthalate) artificial ligaments for reconstruction of the anterior cruciate ligament. Acta Biomater 2012; 8:4007-19. [PMID: 22813848 DOI: 10.1016/j.actbio.2012.07.008] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2012] [Revised: 07/07/2012] [Accepted: 07/10/2012] [Indexed: 01/18/2023]
Abstract
In this study layer by layer (LBL) self-assembled coatings of hyaluronic acid (HA) and cationized gelatin (CG) were used to modify polyethylene terephthalate (PET) artificial ligament grafts. Changes in the surface properties were characterized by scanning electron microscopy, attenuated total reflection Fourier transform infrared spectroscopy, energy-dispersive X-ray spectroscopy, and contact angle and biomechanical measurements. The cell compatibility of this HA-CG coating was investigated in vitro on PET films seeded with human foreskin dermal fibroblasts over 7days. The results of our in vitro studies demonstrated that the HA-CG coating significantly enhanced cell adhesion, facilitated cell growth, and suppressed the expression of inflammation-related genes relative to a pure PET graft. Furthermore, rabbit and porcine anterior cruciate ligament reconstruction models were used to evaluate the effect of this LBL coating in vivo. The animal experiment results proved that this LBL coating significantly inhibited inflammatory cell infiltration and promoted new ligament tissue regeneration among the graft fibers. In addition, the formation of type I collagen in the HA-CG coating group was much higher than in the control group. Based on these results we conclude that PET grafts coated with HA-CG have considerable potential as substitutes for ligament reconstruction.
Collapse
|
40
|
Kim HE, Kim HN, Yu H, Song JE, Jeoung SY, Kim Y, Lee D, Khang G. Effect of demineralized bone particles (DBP) on cell growth and ECM secretion in PLGA/DBP hybrid scaffold for cartilage tissue engineering. Macromol Res 2012. [DOI: 10.1007/s13233-012-0148-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
41
|
Veleirinho B, Coelho DS, Dias PF, Maraschin M, Ribeiro-do-Valle RM, Lopes-da-Silva JA. Nanofibrous poly(3-hydroxybutyrate-co-3-hydroxyvalerate)/chitosan scaffolds for skin regeneration. Int J Biol Macromol 2012; 51:343-50. [PMID: 22652216 DOI: 10.1016/j.ijbiomac.2012.05.023] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2012] [Revised: 05/11/2012] [Accepted: 05/17/2012] [Indexed: 12/19/2022]
Abstract
The purpose of this study was to evaluate hybrid poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV)/chitosan nanofibrous mats as scaffolds for skin engineering. In vitro studies were carried out to test the potential of the scaffolds for fibroblasts adhesion, viability, and proliferation (L929 cell line). The in vivo performance was also studied in a full-thickness wound healing model. PHBV/chitosan 4:1 (w/w) exhibited a higher in vitro biocompatibility and a better ability for cell adhesion and growth, compared to PHBV/chitosan 2:3 (w/w). The in vivo assay also revealed the better performance of this scaffold, improving the wound healing process in rats.
Collapse
Affiliation(s)
- Beatriz Veleirinho
- QOPNA Research Unit, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | | | | | | | | | | |
Collapse
|
42
|
Giavaresi G, Tschon M, Daly JH, Liggat JJ, Sutherland DS, Agheli H, Fini M, Torricelli P, Giardino R. In vitro and in vivo response to nanotopographically-modified surfaces of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) and polycaprolactone. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 17:1405-23. [PMID: 17260511 DOI: 10.1163/156856206778937226] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Colloidal lithography and embossing master are new techniques of producing nanotopography, which have been recently applied to improve tissue response to biomaterials by modifying the surface topography on a nano-scale dimension. A natural polyester (Biopol), 8% 3-hydroxyvalerate-component (D400G) and a conventional biodegradable polycaprolactone (PCL) were studied, both nanostructured and native forms, in vitro and in vivo. Nanopits (100-nm deep, 120-nm diameter) on the D400G surface were produced by the embossing master technique (Nano-D400G), while nanocylinders (160-nm height, 100-nm diameter) on the PCL surface were made by the colloidal lithography technique (Nano-PCL). L929 fibroblasts were seeded on polyesters, and cell proliferation, cytotoxic effect, synthetic and cytokine production were assessed after 72 h and 7 days. Then, under general anesthesia, 3 Sprague-Dawley rats received dorsal subcutaneous implants of nanostructured and native polyesters. At 1, 4 and 12 weeks the animals were pharmacologically euthanized and implants with surrounding tissue studied histologically and histomorphometrically. In vitro results showed significant differences between D400G and PCL in Interleukin-6 production at 72 h. At 7 days, significant (P < 0.05) differences were found in Interleukin-1beta and tumor necrosis factor-alpha release for Nano-PCL when compared to Nano-D400G, and for PCL in comparison with D400G. In vivo results indicated that Nano-D400G implants produced a greater extent of inflammatory tissue than Nano-PCL at 4 weeks. The highest vascular densities were observed for Nano-PCL at 4 and 12 weeks. Chemical and topographical factors seem to be responsible for the different behaviour, and from the obtained results a prevalence of chemistry on in vitro data and nanotopography on soft tissue response in vivo are hypothesized, although more detailed investigations are necessary in this field.
Collapse
Affiliation(s)
- Gianluca Giavaresi
- Department of Experimental Surgery, Research Institute 'Codivilla-Putti', Rizzoli Orthopaedic Institute, Via di Barbiano 1/10, I-40136 Bologna, Italy.
| | | | | | | | | | | | | | | | | |
Collapse
|
43
|
Yu BY, Chen PY, Sun YM, Lee YT, Young TH. Effects of the Surface Characteristics of Polyhydroxyalkanoates on the Metabolic Activities and Morphology of Human Mesenchymal Stem Cells. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 21:17-36. [DOI: 10.1163/156856209x410139] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Bo-Yi Yu
- a Institute of Medical Engineering, National Taiwan University, Taipei, Taiwan 100, Republic of China; Department of Chemical Engineering and Materials Science, Yuan Ze University, Chung-Li, Taiwan 320, Republic of China
| | - Po-Ya Chen
- b Department of Chemical Engineering and Materials Science, Yuan Ze University, Chung-Li, Taiwan 320, Republic of China
| | - Yi-Ming Sun
- c Department of Chemical Engineering and Materials Science, Yuan Ze University, Chung-Li, Taiwan 320, Republic of China; Graduate School of Biotechnology and Bioengineering, Yuan Ze University, Chung-Li, Taiwan 320, Republic of China; R&D Center for Membrane Technology, Chung Yuan University, Chung-Li, Taiwan 320, Republic of China
| | - Yu-Tsang Lee
- d Institute of Medical Engineering, National Taiwan University, Taipei, Taiwan 100, Republic of China; Department of Chemical Engineering and Materials Science, Yuan Ze University, Chung-Li, Taiwan 320, Republic of China; Department of Orthopedic Surgery, Min-Sheng General Hospital, Taoyuan, Taiwan 330, Republic of China
| | - Tai-Horng Young
- e Institute of Medical Engineering, National Taiwan University, Taipei, Taiwan 100, Republic of China
| |
Collapse
|
44
|
Brigham CJ, Zhila N, Shishatskaya E, Volova TG, Sinskey AJ. Manipulation of Ralstonia eutropha carbon storage pathways to produce useful bio-based products. Subcell Biochem 2012; 64:343-366. [PMID: 23080259 DOI: 10.1007/978-94-007-5055-5_17] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Ralstonia eutrophais a Gram-negative betaproteobacterium found natively in soils that can utilize a wide array of carbon sources for growth, and can store carbon intracellularly in the form of polyhydroxyalkanoate. Many aspects of R. eutrophamake it a good candidate for use in biotechnological production of polyhydroxyalkanoate and other bio-based, value added compounds. Manipulation of the organism's carbon flux is a cornerstone to success in developing it as a biotechnologically relevant organism. Here, we examine the methods of controlling and adapting the flow of carbon in R. eutrophametabolism and the wide range of compounds that can be synthesized as a result. The presence of many different carbon utilization pathways and the custom genetic toolkit for manipulation of those pathways gives R. eutrophaa versatility that allows it to be a biotechnologically important organism.
Collapse
Affiliation(s)
- Christopher J Brigham
- Department of Biology, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, USA
| | | | | | | | | |
Collapse
|
45
|
Bayramoğlu G, Kayaman-Apohan N, Kahraman MV, Karadenizli S, Kuruca SE, Güngör A. Preparation of bow tie-type methacrylated poly(caprolactone-co-lactic acid) scaffolds: effect of collagen modification on cell growth. POLYM ADVAN TECHNOL 2011. [DOI: 10.1002/pat.2059] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Gülay Bayramoğlu
- Faculty of Engineering, Department of Polymer Engineering; Yalova University; 77100; Yalova; Turkey
| | | | | | - Sabriye Karadenizli
- Istanbul Faculty of Medicine; Istanbul University; 34390; Capa; Istanbul; Turkey
| | - Serap Erdem Kuruca
- Istanbul Faculty of Medicine; Istanbul University; 34390; Capa; Istanbul; Turkey
| | - Atilla Güngör
- Department of Chemistry; Marmara University; 34722; Goztepe; Istanbul; Turkey
| |
Collapse
|
46
|
Abstract
In this work, experiments to produce a series of nanocomposites based on natural chitosan and nano-clay (MMT) were conducted. Commercially available montmorillonite (MMT) was used as a nanofiller. CS-MMT nanocomposites were prepared using the casting method. Thin nanocomposite foils were neutralized in NaOH solution, then the nanocomposite foils were soaked in simulated body fluid (SBF). Kinetics of crystallization of the apatite structure was observed using PIXE, FTIR-ATR and SEM/EDS techniques. It was shown that high concentrations of calcium and phosphate ions were located inside the nanocomposite structure. Bioactivity phenomena was initiated first in the nanocomposite foils (CS/MMT) and then in pure chitosan foils. These results suggest that the nano-clay particles (MMT) distributed in the biopolymer matrix acted as nucleaction centers of apatite. An apatite layer on pure chitosan crystallized much more slowly than in the case of nanocomposite materials. The CS-MMT nanocomposites therefore seem to be promising materials for bone repair implants because of their inherent bioactivity.
Collapse
|
47
|
Hu Z, Zhang J, Chan WL, Szeto YS. Suspension of Silver Oxide Nanoparticles in Chitosan Solution and its Antibacterial Activity in Cotton Fabrics. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-0920-s02-03] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
AbstractNew stable silver oxide suspension in chitosan solution was prepared from a mixture of silver nitrate and chitosan in dilute acetic acid as precursor, in which the complex interactions between silver ion and chitosan was also investigated through various instrumentation method seriously. The suspension was charactized through laser scan, infrared ray spectroscopy (IR), ultraviolet-visible spectroscopy (UV-vis) and X-ray diffraction (XRD), which indicated that the interactions between silver and chitosan in its precursor were destroyed partially. The measurements of the nanoparticles through scanning electron microscopy (SEM) and transmission electron microscopy (TEM) disclosed the spherical profiles of these silver oxide nanoparticles of 10-20nm in average. Cotton fabrics treated by this emulsion were entitled remarkable antibacterial activity against S aureus and E. coli at pH 5 and 7 with sightless color effect and good washing fastness.
Collapse
|
48
|
Marine polysaccharides in pharmaceutical applications: an overview. Mar Drugs 2010; 8:2435-65. [PMID: 20948899 PMCID: PMC2953395 DOI: 10.3390/md8092435] [Citation(s) in RCA: 283] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2010] [Revised: 08/19/2010] [Accepted: 08/20/2010] [Indexed: 02/03/2023] Open
Abstract
The enormous variety of polysaccharides that can be extracted from marine plants and animal organisms or produced by marine bacteria means that the field of marine polysaccharides is constantly evolving. Recent advances in biological techniques allow high levels of polysaccharides of interest to be produced in vitro. Biotechnology is a powerful tool to obtain polysaccharides from a variety of micro-organisms, by controlling the growth conditions in a bioreactor while tailoring the production of biologically active compounds. Following an overview of the current knowledge on marine polysaccharides, with special attention to potential pharmaceutical applications and to more recent progress on the discovering of new polysaccharides with biological appealing characteristics, this review will focus on possible strategies for chemical or physical modification aimed to tailor the final properties of interest.
Collapse
|
49
|
Yang L, Li L, Tu Q, Ren L, Zhang Y, Wang X, Zhang Z, Liu W, Xin L, Wang J. Photocatalyzed Surface Modification of Poly(dimethylsiloxane) with Polysaccharides and Assay of Their Protein Adsorption and Cytocompatibility. Anal Chem 2010; 82:6430-9. [DOI: 10.1021/ac100544x] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Linyan Yang
- Colleges of Science, Life Science, and Animal Medicine and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, People’s Republic of China
| | - Li Li
- Colleges of Science, Life Science, and Animal Medicine and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, People’s Republic of China
| | - Qin Tu
- Colleges of Science, Life Science, and Animal Medicine and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, People’s Republic of China
| | - Li Ren
- Colleges of Science, Life Science, and Animal Medicine and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, People’s Republic of China
| | - Yanrong Zhang
- Colleges of Science, Life Science, and Animal Medicine and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, People’s Republic of China
| | - Xueqin Wang
- Colleges of Science, Life Science, and Animal Medicine and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, People’s Republic of China
| | - Zhiyun Zhang
- Colleges of Science, Life Science, and Animal Medicine and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, People’s Republic of China
| | - Wenming Liu
- Colleges of Science, Life Science, and Animal Medicine and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, People’s Republic of China
| | - Liangliang Xin
- Colleges of Science, Life Science, and Animal Medicine and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, People’s Republic of China
| | - Jinyi Wang
- Colleges of Science, Life Science, and Animal Medicine and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, People’s Republic of China
| |
Collapse
|
50
|
García JL, Asadinezhad A, Pacherník J, Lehocký M, Junkar I, Humpolíček P, Sáha P, Valášek P. Cell proliferation of HaCaT keratinocytes on collagen films modified by argon plasma treatment. Molecules 2010; 15:2845-56. [PMID: 20428083 PMCID: PMC6257401 DOI: 10.3390/molecules15042845] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2010] [Revised: 04/15/2010] [Accepted: 04/19/2010] [Indexed: 01/17/2023] Open
Abstract
Argon plasma treatment was used to modify the surface of atelocollagen films using a plasmochemical reactor. To evaluate the effects of the treatment, the untreated and treated samples were characterized by Attenuated Total Reflectance Fourier Transform Infrared Spectroscopy (ATR-FTIR), Scanning Electron Microscopy (SEM) imaging, and X-ray Photoelectron Spectroscopy (XPS) techniques. Cell growth was carried out by culturing human immortalized keratinocyte (HaCaT) cells and proliferation was measured via MTT assay. It was observed that argon plasma treatment significantly enhanced the extent of cell proliferation, which was ascribed to the favourable role of plasma treatment in inducing surface oxygen-containing entities together with increasing surface roughness. This can be considered as a potentially promising approach for tissue regeneration purposes.
Collapse
Affiliation(s)
- Jorge López García
- Polymer Centre, Faculty of Technology, Tomas Bata University in Zlín, T.G.M Sq. 275, 76272, Zlín, Czech Republic; E-Mails: (J.L.G.); (A.A.); (P.S.)
| | - Ahmad Asadinezhad
- Polymer Centre, Faculty of Technology, Tomas Bata University in Zlín, T.G.M Sq. 275, 76272, Zlín, Czech Republic; E-Mails: (J.L.G.); (A.A.); (P.S.)
| | - Jiří Pacherník
- Faculty of Sciences, Institute of Experimental Biology, Masaryk University Brno, Kotlářska 2, 61137, Brno, Czech Republic; E-Mail: (J.P.)
| | - Marián Lehocký
- Tomas Bata University in Zlín, T.G.M Sq. 5555, 76001, Zlín, Czech Republic; E-Mails: (P.H.); (P.V.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel: +420608616048; Fax: +420576031444
| | - Ita Junkar
- Plasma Laboratory, Department of Surface Engineering, Jožef Stefan Institute, Jamova cesta 39, SI-1000, Ljubljana, Slovenia; E-Mail: (I.J.)
| | - Petr Humpolíček
- Tomas Bata University in Zlín, T.G.M Sq. 5555, 76001, Zlín, Czech Republic; E-Mails: (P.H.); (P.V.)
| | - Petr Sáha
- Polymer Centre, Faculty of Technology, Tomas Bata University in Zlín, T.G.M Sq. 275, 76272, Zlín, Czech Republic; E-Mails: (J.L.G.); (A.A.); (P.S.)
| | - Pavel Valášek
- Tomas Bata University in Zlín, T.G.M Sq. 5555, 76001, Zlín, Czech Republic; E-Mails: (P.H.); (P.V.)
| |
Collapse
|