1
|
Zahra T, Badiei A, Hamedi J. Effect of the Nanoclay Treated Streptomyces sp. UTMC 3136 as a Bioformulation on the Growth of Helianthus annuus. Curr Microbiol 2022; 79:299. [PMID: 36002542 DOI: 10.1007/s00284-022-02993-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Accepted: 08/04/2022] [Indexed: 11/25/2022]
Abstract
Biofertilizers based on plant growth-promoting actinobacteria are used as potential alternatives to chemical fertilizers for sustainable agricultural systems. However, successful application of PGPA to agricultural land is challenging. The present study was an attempt to develop and evaluate the effect of a low-cost biofertilizer named NCTS (nanoclay-treated-Streptomyces) based on Streptomyces sp. UTMC 3136 spores amalgamated in a hybrid material of nanoclay Na-montmorillonite K10-glycerol-water substrate. In addition, the effect of NCTS on sunflower growth was investigated. In vivo tests showed a statistically significant increase in the agronomic characteristics of sunflowers treated with NCTS. Characterization of NCTS by FTIR, Raman spectroscopy, and scanning electron microscopy testified to the structural alignment and good adhesion of NCTS components. The viability of NCTS was 100% after 72 h of storage at 4 °C. Overall, the present study attempted to validate the efficacy of the formulation of Streptomyces sp. UTMC 3136 in nanoclay for growth improvement of sunflower. It was the first study to show the administration of PGPA in combination with nanomaterials as a growth enhancing biofertilization agent for sunflower.
Collapse
Affiliation(s)
- Tamkeen Zahra
- Department of Microbial Biotechnology, School of Biology and Center of Excellence in Phylogeny of Living Organisms, College of Science, University of Tehran, Tehran, Iran.,Microbial Technology and Products (MTP) Research Center, University of Tehran, Tehran, Iran
| | - Alireza Badiei
- Department of Chemistry, School of Chemistry, College of Science, University of Tehran, Tehran, Iran.
| | - Javad Hamedi
- Department of Microbial Biotechnology, School of Biology and Center of Excellence in Phylogeny of Living Organisms, College of Science, University of Tehran, Tehran, Iran. .,Microbial Technology and Products (MTP) Research Center, University of Tehran, Tehran, Iran.
| |
Collapse
|
2
|
Production and Characterization of Gelatin Biomaterials Based on Agave Microfibers and Bentonite as Reinforcements. Foods 2022; 11:foods11111573. [PMID: 35681323 PMCID: PMC9180701 DOI: 10.3390/foods11111573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Revised: 05/22/2022] [Accepted: 05/23/2022] [Indexed: 01/18/2023] Open
Abstract
The objective of this work was to obtain biomaterials as gelatin films or biofilms produced by casting, reinforced with a microfiber (MF) from Agave angustifolia Haw bagasse and bentonite (BN) nanoparticles and evaluate the effect of such reinforcements at different concentrations. Agave microfibers were obtained by a non-abrasive chemical method. Three formulations based on gelatin with glycerol were reinforced with microfiber, bentonite and both materials with 1.5, 3.5 and 5.5% w/w solids content. Physicochemical properties were determined using SEM and FTIR, thickness, soluble matter and moisture. The XRD, barrier, mechanical and thermal properties were measured. The films’ micrographs showed agglomerations on the surface. Interactions between its functional groups were found. The solubility increased when the MF concentration increased. The thickness of the films was between 60 and 110 μm. The crystallinity ranged from 23 to 86%. The films with both MF and BN and 3.5% w/w solids had the lowest barrier properties, while the film with 5.5% w/w solids showed the highest mechanical properties, being thermally resistant. Overall, Agave microfibers together with bentonite were able to improve some of the films’ properties, but optimized mixing conditions had to be used to achieve good particle dispersion within the gelatin matrix to improve its final properties. Such materials might have the potential to be used as food packaging.
Collapse
|
3
|
Influence of reaction compatibilization on mechanical and barrier properties of poly(lactic acid)/ethylene–methyl acrylate-glycidyl methacrylate terpolymer films. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-02932-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
4
|
Understanding the Barrier and Mechanical Behavior of Different Nanofillers in Chitosan Films for Food Packaging. Polymers (Basel) 2021; 13:polym13050721. [PMID: 33653012 PMCID: PMC7956210 DOI: 10.3390/polym13050721] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 02/18/2021] [Accepted: 02/23/2021] [Indexed: 12/28/2022] Open
Abstract
The continuous petroleum-based plastics manufacturing generates disposal issues, spreading the problem of plastic pollution and its rise in the environment. Recently, innovative techniques and scientific research promoted biopolymers as the primary alternative for traditional plastics, raising and expanding global bioplastic production. Due to its unmatched biological and functional attributes, chitosan (Ch) has been substantially explored and employed as a biopolymeric matrix. Nevertheless, the hydrophilicity and the weak mechanical properties associated with this biopolymer represent a significant intrinsic restriction to its implementation into some commercial applications, namely, in food packaging industries. Distinct methodologies have been utilized to upgrade the mechanical and barrier properties of Ch, such as using organic or inorganic nanofillers, crosslinkers, or blends with other polymers. This review intends to analyze the most recent works that combine the action of different nanoparticle types with Ch films to reinforce their mechanical and barrier properties.
Collapse
|
5
|
Humayun A, Luo Y, Elumalai A, Mills DK. 3D printed antimicrobial PLA constructs functionalised with zinc- coated halloysite nanotubes-Ag-chitosan oligosaccharide lactate. MATERIALS TECHNOLOGY (NEW YORK, N.Y.) 2020; 37:28-35. [PMID: 35966218 PMCID: PMC9373048 DOI: 10.1080/10667857.2020.1806188] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Accepted: 08/02/2020] [Indexed: 06/15/2023]
Abstract
The control and inhibition of microbial infection are of critical importance for patients undergoing dental or orthopedic surgery. A critical requirement is the prevention of bacterial growth, subsequent bacterial colonization of implant surfaces, and biofilm formation. Among biofilm-forming bacteria, S. aureus and S. epidermidis are the most common bacteria responsible for causing implant-related infections. The ability to produce customized and patient-specific antimicrobial treatments will significantly reduce infections leading to enhanced patient recovery. We propose that 3D-printed antimicrobial biomedical devices for on-demand infection prophylaxis and disease prevention are a rational solution for the prevention of infection. In this study, we modified 3D printed polylactic acid (PLA) constructs using an alkali treatment to increase hydrophilicity and functionalized the surface of the constructs using a suspension of Zinc/HNTs-Ag-Chitosan Oligosaccharide Lactate (ZnHNTs-Ag-COS). The morphologies of printed constructs were analyzed using Scanning Electron Microscopy-Energy Dispersive X-Ray Spectroscopy (SEM-EDS), and chemical analysis by Fourier-transform infrared spectroscopy (FTIR). Assessment of the antimicrobial potential of our constructs was assessed using agar diffusion and biofilm assays. The surface of 3D printed PLA constructs were chemically modified to increase hydrophilicity and suspensions of COS-ZnHNTs-Ag were adsorbed on the construct surface. Surface adsorption of ZnHNTs-Ag-COS on PLA printed constructs was determined to be a function of relative pore size. Morphological surface characterization using SEM-EDS confirmed the presence of the suspension coatings on the constructs, and FTIR analysis confirmed the presence of COS-ZnHNTs-Ag in the coatings. The inhibition of bacterial growth was evaluated using the agar diffusion method. Results obtained confirmed the antimicrobial potential of the PLA constructs (which was a function of the Ag content in the material).
Collapse
Affiliation(s)
- Ahmed Humayun
- Center for Biomedical Engineering and Rehabilitation Science, Louisiana Tech University, Ruston, LA, USA
| | - Yangyang Luo
- Center for Biomedical Engineering and Rehabilitation Science, Louisiana Tech University, Ruston, LA, USA
| | - Anusha Elumalai
- Center for Biomedical Engineering and Rehabilitation Science, Louisiana Tech University, Ruston, LA, USA
| | - David K. Mills
- Center for Biomedical Engineering and Rehabilitation Science, Louisiana Tech University, Ruston, LA, USA
- School of Biological Sciences, Louisiana Tech University, Ruston, LA, USA
| |
Collapse
|
6
|
Strategies for Producing Improved Oxygen Barrier Materials Appropriate for the Food Packaging Sector. FOOD ENGINEERING REVIEWS 2020. [DOI: 10.1007/s12393-020-09235-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
|
7
|
Luo Y, Mills DK. The Effect of Halloysite Addition on the Material Properties of Chitosan-Halloysite Hydrogel Composites. Gels 2019; 5:E40. [PMID: 31416252 PMCID: PMC6787627 DOI: 10.3390/gels5030040] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2019] [Revised: 07/30/2019] [Accepted: 08/09/2019] [Indexed: 02/06/2023] Open
Abstract
Chitosan-based hydrogels are being widely used in biomedical applications due to their eco-friendly, biodegradable, and biocompatible properties, and their ability to mimic the extracellular matrix of many tissues. However, the application of chitosan hydrogels has been limited due to their inherent mechanical weakness. Halloysite nanotubes (HNTs) are naturally occurring aluminosilicate clay minerals and are widely used as a bulk filler to improve the performance characteristics of many polymeric materials. HNTs have also been shown to be a viable nanocontainer able to provide the sustained release of antibiotics, chemicals, and growth factors. This study's objective was to develop a stable drug delivery chitosan/HNT nanocomposite hydrogel that is biocompatible, biodegradable, and provides sustained drug release. In this study, chitosan/HNTs hydrogels containing undoped or gentamicin-doped HNTs were combined in different wt./wt. ratios and cross-linked with tripolyphosphate. The effects of chitosan and HNTs concentration and combination ratios on the hydrogel surface morphology, degradability, and mechanical properties, as well as its drug release capability, were analyzed. The results clearly showed that the addition of HNTs improved chitosan mechanical properties, but only within a narrow range. The nanocomposite hydrogels provided a sustained pattern of drug release and inhibited bacterial growth, and the live/dead assay showed excellent cytocompatibility.
Collapse
Affiliation(s)
- Yangyang Luo
- Molecular Sciences & Nanotechnology, Louisiana Tech University, Ruston, LA 71272, USA
| | - David K Mills
- School of Biological Sciences and the Center for Biomedical Engineering, Louisiana Tech University, Ruston, LA 71272, USA.
| |
Collapse
|
8
|
Zhang L, Wang H, Jin C, Zhang R, Li L, Li X, Jiang S. Sodium lactate loaded chitosan-polyvinyl alcohol/montmorillonite composite film towards active food packaging. INNOV FOOD SCI EMERG 2017. [DOI: 10.1016/j.ifset.2017.06.007] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
9
|
Darbasi M, Askari G, Kiani H, Khodaiyan F. Development of chitosan based extended-release antioxidant films by control of fabrication variables. Int J Biol Macromol 2017; 104:303-310. [PMID: 28610925 DOI: 10.1016/j.ijbiomac.2017.06.055] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2017] [Revised: 06/01/2017] [Accepted: 06/09/2017] [Indexed: 10/19/2022]
Abstract
In this study, mechanical, optical and permeability to water vapor of chitosan containing α-tocopherol film as the function of preparation conditions including concentration of emulsifier and speed of homogenization have investigated. In addition, the effect of above mentioned variables and presence of ethanol as co-surfactant on the release rate of α-tocopherol from chitosan film to fatty food simulant (ethanol 95%) were investigated. Fourier transform infrared spectroscopy and differential scanning calorimetry were employed to analyze the structural and thermal properties of the films. Results showed that the incorporation of α-tocopherol and preparation conditions affected the physical and mechanical properties of the chitosan films. Obtained results indicated that increasing the concentration of Tween 80 increased the release rate of α-tocopherol in the most studied films. Increasing the stirring speed of homogenization and the presence of ethanol considerably decreased the release rate of α-tocopherol at the most film samples. The lowest amount of released antioxidant was 8.6-10% of total incorporated α-tocopherol at the first stages and is obtained when ethanol used during preparation of film forming solution. Our results indicated that the release rate of α-tocopherol could be controlled by changing the stirring speed of homogenization and especially ethanol presence, considerably.
Collapse
Affiliation(s)
- Masoud Darbasi
- Transfer Phenomena Laboratory (TPL), Controlled Release Center, Department of Food Science, Engineering and Technology, University Campus of Agriculture and Nature Resources, University of Tehran, Karaj, Iran
| | - Gholamreza Askari
- Transfer Phenomena Laboratory (TPL), Controlled Release Center, Department of Food Science, Engineering and Technology, University Campus of Agriculture and Nature Resources, University of Tehran, Karaj, Iran.
| | - Hossein Kiani
- Transfer Phenomena Laboratory (TPL), Controlled Release Center, Department of Food Science, Engineering and Technology, University Campus of Agriculture and Nature Resources, University of Tehran, Karaj, Iran
| | - Faramarz Khodaiyan
- Transfer Phenomena Laboratory (TPL), Controlled Release Center, Department of Food Science, Engineering and Technology, University Campus of Agriculture and Nature Resources, University of Tehran, Karaj, Iran
| |
Collapse
|
10
|
Villa-Rojas R, Valdez-Fragoso A, Mújica-Paz H. Manufacturing Methods and Engineering Properties of Pectin-Based Nanobiocomposite Films. FOOD ENGINEERING REVIEWS 2017. [DOI: 10.1007/s12393-017-9163-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
11
|
Liu X, Liu Z, Wang L, Zhang S, Zhang H. Preparation and performance of composite films based on 2-(2-aminoethoxy) ethyl chitosan and cellulose. RSC Adv 2017. [DOI: 10.1039/c6ra26541c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Bioactive films exhibiting antioxidant activity were synthesized from a novel chitosan derivative (AECs) and cellulose under an environmentally friendly process.
Collapse
Affiliation(s)
- Xiaofei Liu
- Department of Polymer Materials Science and Engineering
- College of Materials Science and Engineering
- Tianjin University
- Tianjin
- P. R. China
| | - Zongbao Liu
- Department of Polymer Materials Science and Engineering
- College of Materials Science and Engineering
- Tianjin University
- Tianjin
- P. R. China
| | - Li Wang
- Department of Polymer Materials Science and Engineering
- College of Materials Science and Engineering
- Tianjin University
- Tianjin
- P. R. China
| | - Shengsheng Zhang
- Department of Polymer Materials Science and Engineering
- College of Materials Science and Engineering
- Tianjin University
- Tianjin
- P. R. China
| | - Hai Zhang
- Department of Polymer Materials Science and Engineering
- College of Materials Science and Engineering
- Tianjin University
- Tianjin
- P. R. China
| |
Collapse
|
12
|
Tunç S, Duman O, Polat TG. Effects of montmorillonite on properties of methyl cellulose/carvacrol based active antimicrobial nanocomposites. Carbohydr Polym 2016; 150:259-68. [DOI: 10.1016/j.carbpol.2016.05.019] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Revised: 05/05/2016] [Accepted: 05/07/2016] [Indexed: 10/21/2022]
|
13
|
Yan N, Capezzuto F, Lavorgna M, Buonocore GG, Tescione F, Xia H, Ambrosio L. Borate cross-linked graphene oxide-chitosan as robust and high gas barrier films. NANOSCALE 2016; 8:10783-91. [PMID: 27168418 DOI: 10.1039/c6nr00377j] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Chitosan (CS) is one of the most promising polymers due to its biocompatibility, biodegradability, and natural abundance. However, its poor mechanical and barrier properties make it difficult to satisfy a wide range of applications. Herein, borate ions, originating from the hydrolysis of sodium tetraborate decahydrate (borax), have been used to crosslink chitosan and graphene oxide (GO) nanocomposites. Chitosan films consisting of 1.0 wt% boron and 1.0 wt% GO exhibit a significant improvement in both the toughness and oxygen barrier properties compared to pristine chitosan. In particular the tensile strength of the samples after thermal treatment increases by ∼160% compared to pristine chitosan, whereas their oxygen permeability reduces by ∼90%. This is ascribed to the chemical crosslinking between chitosan and GO nanoplatelets through borate ions, as well as the formation of a layered morphology with graphene nanoplatelets oriented parallel to the sample surface. The exceptional robust and high gas barrier film has promising application in the packaging industry. The borate-crosslinking chemistry represents the potential strategy for improving properties of other polymer nanocomposites.
Collapse
Affiliation(s)
- Ning Yan
- Institute of Polymers, Composites and Biomaterials, National Research Council, P.le Fermi, 1-80055 Portici, NA, Italy. and Xi'an Modern Chemistry Research Institute, Xi'an 710065, China
| | - Filomena Capezzuto
- Institute of Polymers, Composites and Biomaterials, National Research Council, P.le Fermi, 1-80055 Portici, NA, Italy.
| | - Marino Lavorgna
- Institute of Polymers, Composites and Biomaterials, National Research Council, P.le Fermi, 1-80055 Portici, NA, Italy.
| | - Giovanna G Buonocore
- Institute of Polymers, Composites and Biomaterials, National Research Council, P.le Fermi, 1-80055 Portici, NA, Italy.
| | - Fabiana Tescione
- Institute of Polymers, Composites and Biomaterials, National Research Council, P.le Fermi, 1-80055 Portici, NA, Italy.
| | - Hesheng Xia
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China.
| | - Luigi Ambrosio
- Institute of Polymers, Composites and Biomaterials, National Research Council, P.le Fermi, 1-80055 Portici, NA, Italy.
| |
Collapse
|
14
|
Purwanto M, Atmaja L, Mohamed MA, Salleh MT, Jaafar J, Ismail AF, Santoso M, Widiastuti N. Biopolymer-based electrolyte membranes from chitosan incorporated with montmorillonite-crosslinked GPTMS for direct methanol fuel cells. RSC Adv 2016. [DOI: 10.1039/c5ra22420a] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A composite membrane was fabricated from biopolymer chitosan and montmorillonite (MMT) filler as an alternative membrane electrolyte for direct methanol fuel cell (DMFC) application.
Collapse
Affiliation(s)
- Mochammad Purwanto
- Advanced Membrane Technology (AMTEC) Research Centre
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
- Department of Chemistry
| | - Lukman Atmaja
- Department of Chemistry
- Institut Teknologi Sepuluh Nopember
- Surabaya 60111
- Indonesia
| | - Mohamad Azuwa Mohamed
- Advanced Membrane Technology (AMTEC) Research Centre
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
| | - M. T. Salleh
- Advanced Membrane Technology (AMTEC) Research Centre
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
| | - Juhana Jaafar
- Advanced Membrane Technology (AMTEC) Research Centre
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
| | - A. F. Ismail
- Advanced Membrane Technology (AMTEC) Research Centre
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
| | - Mardi Santoso
- Department of Chemistry
- Institut Teknologi Sepuluh Nopember
- Surabaya 60111
- Indonesia
| | - Nurul Widiastuti
- Department of Chemistry
- Institut Teknologi Sepuluh Nopember
- Surabaya 60111
- Indonesia
| |
Collapse
|
15
|
Lim JH, Kim JA, Ko JA, Park HJ. Preparation and Characterization of Composites Based on Polylactic Acid and Beeswax with Improved Water Vapor Barrier Properties. J Food Sci 2015; 80:E2471-7. [DOI: 10.1111/1750-3841.13081] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Accepted: 08/18/2015] [Indexed: 11/30/2022]
Affiliation(s)
- Jung Hoon Lim
- Department of Biotechnology, College of Life Sciences and Biotechnology; Korea University; P.O. Box 136-701 Seoul Republic of Korea
- Dept. of Packaging; Lotte R&D Center; 4-Ka, Yangpyong-Dong Youngdeungpo-Ku Seoul Republic of Korea
| | - Jeong Ae Kim
- Department of Biotechnology, College of Life Sciences and Biotechnology; Korea University; P.O. Box 136-701 Seoul Republic of Korea
- Dept. of Packaging; Lotte R&D Center; 4-Ka, Yangpyong-Dong Youngdeungpo-Ku Seoul Republic of Korea
| | - Jung A Ko
- Department of Biotechnology, College of Life Sciences and Biotechnology; Korea University; P.O. Box 136-701 Seoul Republic of Korea
| | - Hyun Jin Park
- Department of Biotechnology, College of Life Sciences and Biotechnology; Korea University; P.O. Box 136-701 Seoul Republic of Korea
| |
Collapse
|
16
|
Zhang ZH, Han Z, Zeng XA, Xiong XY, Liu YJ. Enhancing mechanical properties of chitosan films via modification with vanillin. Int J Biol Macromol 2015; 81:638-43. [PMID: 26314906 DOI: 10.1016/j.ijbiomac.2015.08.042] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 08/08/2015] [Accepted: 08/20/2015] [Indexed: 10/23/2022]
Abstract
The vanillin/chitosan composite films were prepared using the solvent evaporation method. The properties of the films including optical property, water vapor permeability (WVP), tensile strength (TS) and elongation at break (%E) were studied to investigate the effect of cross-linking agent of vanillin on chitosan films by thermogravimetric analysis (TGA), scanning electron microscopy (SEM), X-ray diffraction (XRD) and Fourier transform infrared spectrum (FT-IR). Results showed that the TS of composite films increased by 53.3% and the WVP decreased by 36.5% compared with pure chitosan film that were due to the formation of the dense network structure by FT-IR spectra. There were almost no changes of the thermal stability of the composite films compared with the pure chitosan film by TGA analysis. In addition, from the SEM images, it could be seen that the film with addition of vanillin with 0.5-10% concentration exhibited good compatibility.
Collapse
Affiliation(s)
- Zhi-Hong Zhang
- College of Light Industry and Food Sciences, South China University of Technology, Guangzhou, Guangdong 510640, China
| | - Zhong Han
- College of Light Industry and Food Sciences, South China University of Technology, Guangzhou, Guangdong 510640, China.
| | - Xin-An Zeng
- College of Light Industry and Food Sciences, South China University of Technology, Guangzhou, Guangdong 510640, China.
| | - Xia-Yu Xiong
- College of Light Industry and Food Sciences, South China University of Technology, Guangzhou, Guangdong 510640, China
| | - Yu-Jia Liu
- Department of Applied Chemistry, South China Agricultural University, Guangzhou, Guangdong 510642, China
| |
Collapse
|
17
|
Unalan IU, Wan C, Figiel Ł, Olsson RT, Trabattoni S, Farris S. Exceptional oxygen barrier performance of pullulan nanocomposites with ultra-low loading of graphene oxide. NANOTECHNOLOGY 2015; 26:275703. [PMID: 26080998 DOI: 10.1088/0957-4484/26/27/275703] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Polymer nanocomposites are increasingly important in food packaging sectors. Biopolymer pullulan is promising in manufacturing packaging films or coatings due to its excellent optical clarity, mechanical strength, and high water-solubility as compared to other biopolymers. This work aims to enhance its oxygen barrier properties and overcome its intrinsic brittleness by utilizing two-dimensional planar graphene oxide (GO) nanoplatelets. It has been found that the addition of only 0.2 wt% of GO enhanced the tensile strength, Young's modulus, and elongation at break of pullulan films by about 40, 44 and 52%, respectively. The light transmittance at 550 nm of the pullulan/GO films was 92.3% and haze values were within 3.0% threshold, which meets the general requirement for food packaging materials. In particular, the oxygen permeability coefficient of pullulan was reduced from 6337 to 2614 mL μm m(-2) (24 h(-1)) atm(-1) with as low as 0.05 wt% of GO loading and further to 1357 mL μm m(-2) (24 h(-1)) atm(-1) when GO concentration reached 0.3 wt%. The simultaneous improvement of the mechanical and oxygen barrier properties of pullulan was ascribed to the homogeneous distribution and prevalent unidirectional alignment of GO nanosheets, as determined from the characterization and theoretical modelling results. The exceptional oxygen barrier properties of pullulan/GO nanocomposites with enhanced mechanical flexibility and good optical clarity will add new values to high performance food packaging materials.
Collapse
Affiliation(s)
- Ilke Uysal Unalan
- DeFENS, Department of Food, Environmental and Nutritional Sciences-Packaging Division, University of Milan, via Celoria, I-2-20133 Milan, Italy. International Institute for Nanocomposites Manufacturing, WMG, University of Warwick, Coventry, CV4 7AL, UK
| | | | | | | | | | | |
Collapse
|
18
|
Tzeng P, Stevens B, Devlaming I, Grunlan JC. Polymer-graphene oxide quadlayer thin-film assemblies with improved gas barrier. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:5919-5927. [PMID: 25970136 DOI: 10.1021/acs.langmuir.5b00717] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Layer-by-layer assembly was used to create quadlayers (QLs) of chitosan (CH), poly(acrylic acid) (PAA), CH, and graphene oxide (GO). Electron microscopy confirmed GO coverage over the film and a highly ordered nanobrick wall structure. By varying pH deviation between CH and PAA, a thick and interdiffused polymer matrix was created because of the altered chain conformation. A 5 CH (pH 5.5)/PAA (pH 3)/CH (pH 5.5)/GO QL assembly (48 nm) exhibits very low oxygen permeability (3.9 × 10(-20) cm(3) cm cm(-2) Pa(-1) s(-1)) that matches SiOx barrier coatings. In an effort to maintain barrier performance under high humidity, GO was thermally reduced to increase hydrophobicity of the film. This reduction step increased H2/CO2 selectivity of a 5 QL film from 5 to 215, exceeding Robeson's upper bound limit. This unique water-based multilayer nanocoating is very promising for a variety of gas purification and packaging applications.
Collapse
|
19
|
Abdel Aziz MS, Naguib HF, Saad GR. Nanocomposites Based on Chitosan-Graft-Poly(N-Vinyl-2-Pyrrolidone): Synthesis, Characterization, and Biological Activity. INT J POLYM MATER PO 2015. [DOI: 10.1080/00914037.2014.996707] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
20
|
Interplay between processing and performance in chitosan-based clay nanocomposite films. Polym Bull (Berl) 2015. [DOI: 10.1007/s00289-015-1329-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
21
|
Cui Y, Kumar S, Rao Kona B, van Houcke D. Gas barrier properties of polymer/clay nanocomposites. RSC Adv 2015. [DOI: 10.1039/c5ra10333a] [Citation(s) in RCA: 161] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
The state-of-the-art progress on the use of clay for the gas barrier properties of polymer nanocomposites have been summarized.
Collapse
Affiliation(s)
- Yanbin Cui
- Institute Center for Microsystems (iMicro)
- Department of Mechanical and Materials Engineering (MME)
- Masdar Institute of Science and Technology
- Abu Dhabi
- U.A.E
| | - S. Kumar
- Institute Center for Microsystems (iMicro)
- Department of Mechanical and Materials Engineering (MME)
- Masdar Institute of Science and Technology
- Abu Dhabi
- U.A.E
| | | | | |
Collapse
|
22
|
|
23
|
GOVINDASAMY K, FERNANDOPULLE C, PASBAKHSH POORIA, GOH KL. SYNTHESIS AND CHARACTERISATION OF ELECTROSPUN CHITOSAN MEMBRANES REINFORCED BY HALLOYSITE NANOTUBES. J MECH MED BIOL 2014. [DOI: 10.1142/s0219519414500584] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
We report on the electrospinning method to synthesize and characterise chitosan membranes reinforced by halloysite nanotubes (HNTs). The synthesis process addressed two levels of HNTs concentration, i.e., 2 and 5 wt.%. Tensile testing was carried out to determine the strength (σ), strain (ε) at σ and elastic modulus (E) of the membranes. Tensile test data revealed that the membranes reinforced with 5 wt.% HNTs yielded the highest E (0.153 ± 0.02 GPa) and strength (22.53 ± 8.57 MPa). Electron micrographs of the fractured surfaces showed uniform dispersions of HNTs in the chitosan matrix. Infrared spectra indicated interactions between chitosan and inner and outer surfaces of HNTs. Thermogravimetric analysis demonstrated an increase in thermal stability with the addition of HNTs. Membranes immersed in simulated body fluid system for 28 days revealed the formation of dense apatite blocks with the addition of HNTs. Surface roughness increased with the addition of HNTs resulted a rise in degree of contact angle.
Collapse
Affiliation(s)
- K. GOVINDASAMY
- School of Engineering, Monash University Malaysia, Bandar Sunway, Selangor, Malaysia
| | - C. FERNANDOPULLE
- School of Engineering, Monash University Malaysia, Bandar Sunway, Selangor, Malaysia
| | - POORIA PASBAKHSH
- School of Engineering, Monash University Malaysia, Bandar Sunway, Selangor, Malaysia
| | - K. L. GOH
- School of Mechanical & Systems Engineering, Newcastle University, Newcastle Upon Tyne, UK
| |
Collapse
|
24
|
Giannakas A, Grigoriadi K, Leontiou A, Barkoula NM, Ladavos A. Preparation, characterization, mechanical and barrier properties investigation of chitosan-clay nanocomposites. Carbohydr Polym 2014; 108:103-11. [PMID: 24751253 DOI: 10.1016/j.carbpol.2014.03.019] [Citation(s) in RCA: 102] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Revised: 03/07/2014] [Accepted: 03/10/2014] [Indexed: 11/16/2022]
Abstract
In the current study the effect of dilution of chitosan acetate solution and of the use of a reflux-solution method on the morphology, the mechanical and water barrier properties of chitosan based nanocomposites is being investigated. Two series of nanocomposite films from two chitosan acetate solutions with 2 w/v% and 1 w/v% in chitosan were prepared, with 3, 5 and 10 wt% Na-montmorillonite (NaMMT) and/or 30 wt% glycerol. Intercalation of NaMMT was more effective in films based on 2 w/v% solutions which presented decreased hydrated crystallinity. Upon NaMMT addition an enhancement was found in stiffness and strength (up to 100%) and a remarkable decrease in the elongation at break (up to 75%) and water vapor permeability (WVP) (up to 65%). This enhancement was less pronounced in 1 w/v% systems. Addition of glycerol had a negative effect on the stiffness, strength and WVP, and a positive effect on the elongation at break and the absorbed water. Compared with the conventional solution cast method, the reflux treatment led to a significant improvement of the tested properties of nanocomposite films.
Collapse
Affiliation(s)
- Aris Giannakas
- Department of Business Administration of Food and Agricultural Enterprises, University of Patras, Agrinio 30100, Greece.
| | - Kalouda Grigoriadi
- Department of Materials Engineering, University of Ioannina, Ioannina 45110, Greece.
| | - Areti Leontiou
- Department of Business Administration of Food and Agricultural Enterprises, University of Patras, Agrinio 30100, Greece.
| | | | - Athanasios Ladavos
- Department of Business Administration of Food and Agricultural Enterprises, University of Patras, Agrinio 30100, Greece.
| |
Collapse
|
25
|
Uysal Unalan I, Cerri G, Marcuzzo E, Cozzolino CA, Farris S. Nanocomposite films and coatings using inorganic nanobuilding blocks (NBB): current applications and future opportunities in the food packaging sector. RSC Adv 2014. [DOI: 10.1039/c4ra01778a] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
|
26
|
|
27
|
Svagan AJ, Åkesson A, Cárdenas M, Bulut S, Knudsen JC, Risbo J, Plackett D. Transparent Films Based on PLA and Montmorillonite with Tunable Oxygen Barrier Properties. Biomacromolecules 2012; 13:397-405. [DOI: 10.1021/bm201438m] [Citation(s) in RCA: 182] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
| | - Anna Åkesson
- Department of Chemistry and
NanoScience Center, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen, Denmark
| | - Marité Cárdenas
- Department of Chemistry and
NanoScience Center, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen, Denmark
| | - Sanja Bulut
- Department of Micro- and Nanotechnology, Technical University of Denmark, Ørsteds plads,
DK-2800 Kgs. Lyngby, Denmark
| | - Jes C. Knudsen
- Department of Food Science, University of Copenhagen, Rolighedsvej 30, DK-1958
Frederiksberg C, Denmark
| | - Jens Risbo
- Department of Food Science, University of Copenhagen, Rolighedsvej 30, DK-1958
Frederiksberg C, Denmark
| | - David Plackett
- Department of Chemical and Biochemical
Engineering, Technical University of Denmark, Soltofts plads, DK-2800 Kgs. Lyngby, Denmark
| |
Collapse
|
28
|
Chen W, Wu S, Lei Y, Liao Z, Guo B, Liang X, Jia D. Interfacial structure and performance of rubber/boehmite nanocomposites modified by methacrylic acid. POLYMER 2011. [DOI: 10.1016/j.polymer.2011.07.028] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|