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Condello A, Piacentini E, Giorno L. Insights into the preparation of zein nanoparticles by continuous membrane nanoprecipitation. Int J Biol Macromol 2024; 265:130935. [PMID: 38493815 DOI: 10.1016/j.ijbiomac.2024.130935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 02/27/2024] [Accepted: 03/14/2024] [Indexed: 03/19/2024]
Abstract
Nanoparticles (NPs) preparation is limited to an exclusive use in batch processes and small-scale formulations. The use of membranes as high-performance micromixers is expected to open new scenarios to overcome limitations of conventional nanoprecipitation system such as stirred tank (ST) nanoprecipitation. The ability of the porous membrane to add uniformly one phase to another and govern their mixing at the membrane interface seems to be an important parameter for obtaining uniform NPs. Inorganic membranes (pore size of 1 μm) were used to carry out membrane nanoprecipitation (MN) to form Zein nanoparticles (ZNPs) at pores level by non-solvent induced phase separation. A systematic study of the preparation of ZNPs in the ST and MN systems was carried out to establish the Ouzo diagram. The influence of zein concentration and solvent to non-solvent ratio on the size and size distribution of ZNPs was also investigated. A wider stable Ouzo zone was obtained with MN than with the ST process. ZNPs size increased from 100 nm up to 700 nm, while maintaining low polydispersity index (PDI < 0.2). The results demonstrate the suitability of MN for the continuous production of ZNPs and open the possibility of scaling up the nanoprecipitation process.
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Affiliation(s)
- A Condello
- National Research Council of Italy, Institute on Membrane Technology (CNR-ITM), Via P. Bucci 17/C, 87036 Rende, CS, Italy; Physics Department, University of Calabria, Ponte P. Bucci 33B, 87036 Rende, CS, Italy.
| | - E Piacentini
- National Research Council of Italy, Institute on Membrane Technology (CNR-ITM), Via P. Bucci 17/C, 87036 Rende, CS, Italy.
| | - L Giorno
- National Research Council of Italy, Institute on Membrane Technology (CNR-ITM), Via P. Bucci 17/C, 87036 Rende, CS, Italy.
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2
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Linares-Castañeda A, Franco-Hernández MO, Gómez y Gómez YDLM, Corzo-Rios LJ. Physical properties of zein-alginate-glycerol edible films and their application in the preservation of chili peppers ( Capsicum annuum L.). Food Sci Biotechnol 2024; 33:889-902. [PMID: 38371689 PMCID: PMC10866812 DOI: 10.1007/s10068-023-01393-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 06/21/2023] [Accepted: 07/13/2023] [Indexed: 02/20/2024] Open
Abstract
Edible films elaborated from macromolecules, like carbohydrates, proteins, and lipids, must protect and maintain the integrity of foods during their handling, storage, and transportation. In this work, the effect of the concentration of zein (1-2% w/v), sodium alginate (1.5-2% w/v), and glycerol (2-4% w/v) on edible films physicochemical properties was evaluated. The Zein-Alginate-Glycerol interaction was evidenced by the FTIR analysis, the high permeability to water vapor and contact angles less than 90° of the polymer matrices formed. The film made with 2% zein, 1.5% sodium alginate and 4% glycerol preserved the quality of the chili pepper during 15 days of storage at 20 °C, the edible films allowed 3 more days of shelf life for weight loss and 10 more days for firmness. Edible films could be used in chili peppers that are destined for industrial processing, and before use, remove the film with a simple wash. Supplementary Information The online version contains supplementary material available at 10.1007/s10068-023-01393-z.
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Affiliation(s)
- Alejandra Linares-Castañeda
- Unidad Profesional Interdisciplinaria de Biotecnología, Instituto Politécnico Nacional. Av. Acueducto S/N, Barrio La Laguna, Col. La Laguna Ticomán, 07340 Mexico City, Mexico
| | - Marina Olivia Franco-Hernández
- Unidad Profesional Interdisciplinaria de Biotecnología, Instituto Politécnico Nacional. Av. Acueducto S/N, Barrio La Laguna, Col. La Laguna Ticomán, 07340 Mexico City, Mexico
| | - Yolanda de las Mercedes Gómez y Gómez
- Unidad Profesional Interdisciplinaria de Biotecnología, Instituto Politécnico Nacional. Av. Acueducto S/N, Barrio La Laguna, Col. La Laguna Ticomán, 07340 Mexico City, Mexico
| | - Luis Jorge Corzo-Rios
- Unidad Profesional Interdisciplinaria de Biotecnología, Instituto Politécnico Nacional. Av. Acueducto S/N, Barrio La Laguna, Col. La Laguna Ticomán, 07340 Mexico City, Mexico
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3
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Khalafi N, Gharachorloo M, Ganjloo A, Yousefi S. Electrospun zein nanofibers containing anthocyanins extracted from red cabbage (Brassica oleracea L.). J Food Sci 2023; 88:4620-4629. [PMID: 37799066 DOI: 10.1111/1750-3841.16780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 07/17/2023] [Accepted: 09/12/2023] [Indexed: 10/07/2023]
Abstract
This study aims to fabricate and characterize the zein nanoribbons loaded with different concentrations (2.5, 3, 3.5, 4, and 4.5°wt%) of the anthocyanins extracted from red cabbage through the electrospinning technique. It was demonstrated that an increase in anthocyanin concentration caused an increase in viscosity and electrical conductivity without any significant change in the surface tension of the electrospinning solution. It was shown by scanning electron microscopy that an increase in anthocyanins concentration reduced the porosity of the bead-free ribbons compared with blank zein. The Fourier transform infrared spectroscopy analysis, X-ray diffraction patterns, and differential scanning calorimetry results reflected the presence of significant molecular interactions between zein and anthocyanins. Zein-anthocyanins showed high encapsulation efficiency of close to 100%. As a result, it can conclude that electrospinning is a promising method to encapsulate functional ingredients like anthocyanins.
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Affiliation(s)
- Narges Khalafi
- Department of Food Science and Technology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Maryam Gharachorloo
- Department of Food Science and Technology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Ali Ganjloo
- Department of Food Science and Engineering, Faculty of Agriculture, University of Zanjan, Zanjan, Iran
| | - Shima Yousefi
- Department of Food Science and Technology, Science and Research Branch, Islamic Azad University, Tehran, Iran
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4
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Characterizations of konjac glucomannan/curdlan edible coatings and the preservation effect on cherry tomatoes. Int J Biol Macromol 2023; 232:123359. [PMID: 36693611 DOI: 10.1016/j.ijbiomac.2023.123359] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 01/12/2023] [Accepted: 01/17/2023] [Indexed: 01/22/2023]
Abstract
In this study, konjac glucomannan (KGM) and curdlan were used to fabricate composite coating (KC). The coating solutions were investigated using a rheological method, and the coatings were characterized by water solubility tests, water vapor permeability (WVP), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and thermogravimetric analysis (TGA). The preservation effect of KC coating on cherry tomatoes stored at room temperature was determined. Results indicated that the curdlan addition can adjust the hydrophilicity/hydrophobicity of KGM coatings. Curdlan addition enhanced intermolecular entanglement and film-forming property. Increasing curdlan content in KC coatings significantly decreased the moisture content, dissolution and swelling ratio, and WVP. The KGM-curdlan composites behaved as high-performance coatings with good compatibility and uniformity. The K3C2 coating showed the best uniformity, water barrier, and thermal stability. The application of K3C2 coating significantly reduced the weight loss, decay loss, and delayed the decreases of firmness, soluble solids, total acid, and VC contents of cherry tomatoes. The KGM/curdlan edible coatings have promising potential for prolonging the shelf life of cherry tomatoes and applications in fruits preservation in the future.
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5
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Kong J, Ge X, Sun Y, Mao M, Yu H, Chu R, Wang Y. Multi-functional pH-sensitive active and intelligent packaging based on highly cross-linked zein for the monitoring of pork freshness. Food Chem 2023; 404:134754. [DOI: 10.1016/j.foodchem.2022.134754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 10/03/2022] [Accepted: 10/23/2022] [Indexed: 11/04/2022]
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6
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Bahraminejad S, Mousavi M, Askari G, Gharaghani M. Effect of octenylsuccination of alginate on structure, mechanical and barrier properties of alginate-zein composite film. Int J Biol Macromol 2023; 226:463-472. [PMID: 36481339 DOI: 10.1016/j.ijbiomac.2022.12.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Revised: 11/06/2022] [Accepted: 12/03/2022] [Indexed: 12/12/2022]
Abstract
This study examines the effect of the chemical modification of alginate (ALG) by octenyl succinic anhydride (OSA) on the physical, mechanical, and barrier properties of the alginate-zein blend film. To reach this goal, the effect of the degree of substitution (DS) of the modified-ALG (OS-ALG) was assessed on the physical, mechanical, and barrier properties of the fabricated composite films. As confirmed by FTIR and XRD, the hydrophobic nature of OS-ALG facilitated the miscibility of OS-ALG-zein than ALG-zein. Moreover, scanning electron microscope (SEM) images confirmed the FTIR and XRD results. Furthermore, the substitution of ALG with OS-ALG in the blend films can significantly improve the water resistance and mechanical strength of the samples. The OSA-modification of ALG increased the water contact angle while decreasing the solubility, moisture content, extensibility, and water vapor permeability. Finally, the OS-ALG (DS = 0.034) and zein would be considered as a new source for the fabrication of biodegradable composite films with excellent structural and barrier properties.
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Affiliation(s)
- Sajjad Bahraminejad
- Bioprocessing and Biodetection Laboratory, Department of Food Science, Engineering and Technology, University of Tehran, Karaj, 31587-77871, Iran
| | - Mohammad Mousavi
- Bioprocessing and Biodetection Laboratory, Department of Food Science, Engineering and Technology, University of Tehran, Karaj, 31587-77871, Iran
| | - Gholamreza Askari
- Bioprocessing and Biodetection Laboratory, Department of Food Science, Engineering and Technology, University of Tehran, Karaj, 31587-77871, Iran.
| | - Mohammad Gharaghani
- Bioprocessing and Biodetection Laboratory, Department of Food Science, Engineering and Technology, University of Tehran, Karaj, 31587-77871, Iran
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7
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Wang C, Qin K, Sun Q, Qiao X. Preparation of Natural Food-Grade Core-Shell Starch/Zein Microparticles by Antisolvent Exchange and Transglutaminase Crosslinking for Reduced Digestion of Starch. Front Nutr 2022; 9:879757. [PMID: 35495914 PMCID: PMC9053832 DOI: 10.3389/fnut.2022.879757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Accepted: 03/23/2022] [Indexed: 12/01/2022] Open
Abstract
The purpose of this study was to slow down the digestibility of starch granules by encapsulating it in zein shells. Drop of the preformed swollen corn starch (CS) granule suspension into thermal-treated zein ethanolic solution enables antisolvent precipitation of thermal-treated zein on the surface of the preformed swollen CS granules, leading to the formation of core-shell starch/zein microparticles. Confocal laser scanning microscopy images showed that the preformed swollen CS granules were coated by thermal-treated zein shells with a thickness of 0.48–0.95 μm. The volume average particle diameter of core-shell starch/zein microparticles was 14.70 μm and reached 18.59–30.98 μm after crosslinking by transglutaminase. The results of X-ray diffraction and Fourier transform infrared spectroscopy demonstrated that an interaction occurred between the preformed swollen CS granules and the thermal-treated zein. The results for thermodynamic characteristics, pasting properties, and swelling power indicated that the compact network structure of core-shell starch/zein microparticles crosslinked by transglutaminase could improve starch granule thermal stability and resistance to shearing forces. Compared to native CS, the peak gelatinization temperatures of core-shell starch/zein microparticles increased significantly (p < 0.05), with a maximum value of 76.64°C. The breakdown values and the swelling power at 95°C of core-shell starch/zein microparticles significantly (p < 0.05) decreased by 52.83–85.66% and 0.11–0.28%, respectively. The in vitro digestibility test showed that the contents of slowly digestible starch and resistant starch in the core-shell starch/zein microparticles increased to ∼42.66 and ∼34.75%, respectively, compared to those of native CS (9.56 and 2.48%, respectively). Our research supports the application of food-grade core-shell starch/zein microparticles to formulate low-digestibility food products.
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Affiliation(s)
- Chaofan Wang
- Key Laboratory of Food Processing Technology and Quality Control in Shandong Province, College of Food Science and Engineering, Shandong Agricultural University, Tai'an, China
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, China
| | - Kaili Qin
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, China
- Institute of Nutrition and Health, School of Public Health, Qingdao University, Qingdao, China
| | - Qingjie Sun
- Key Laboratory of Food Processing Technology and Quality Control in Shandong Province, College of Food Science and Engineering, Shandong Agricultural University, Tai'an, China
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, China
- Institute of Nutrition and Health, School of Public Health, Qingdao University, Qingdao, China
| | - Xuguang Qiao
- Key Laboratory of Food Processing Technology and Quality Control in Shandong Province, College of Food Science and Engineering, Shandong Agricultural University, Tai'an, China
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8
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Ghasemi M, Miri MA, Najafi MA, Tavakoli M, Hadadi T. Encapsulation of Cumin essential oil in zein electrospun fibers: Characterization and antibacterial effect. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2022. [DOI: 10.1007/s11694-021-01268-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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9
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Lamp A, Kaltschmitt M, Dethloff J. Options to Improve the Mechanical Properties of Protein-Based Materials. Molecules 2022; 27:446. [PMID: 35056758 PMCID: PMC8779582 DOI: 10.3390/molecules27020446] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 12/13/2021] [Accepted: 12/20/2021] [Indexed: 01/27/2023] Open
Abstract
While bio-based but chemically synthesized polymers such as polylactic acid require industrial conditions for biodegradation, protein-based materials are home compostable and show high potential for disposable products that are not collected. However, so far, such materials lack in their mechanical properties to reach the requirements for, e.g., packaging applications. Relevant measures for such a modification of protein-based materials are plasticization and cross-linking; the former increasing the elasticity and the latter the tensile strength of the polymer matrix. The assessment shows that compared to other polymers, the major bottleneck of proteins is their complex structure, which can, if developed accordingly, be used to design materials with desired functional properties. Chemicals can act as cross-linkers but require controlled reaction conditions. Physical methods such as heat curing and radiation show higher effectiveness but are not easy to control and can even damage the polymer backbone. Concerning plasticization, effectiveness and compatibility follow opposite trends due to weak interactions between the plasticizer and the protein. Internal plasticization by covalent bonding surpasses these limitations but requires further research specific for each protein. In addition, synergistic approaches, where different plasticization/cross-linking methods are combined, have shown high potential and emphasize the complexity in the design of the polymer matrix.
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Affiliation(s)
| | | | - Jan Dethloff
- Institute of Environmental Technology and Energy Economics (IUE), Hamburg University of Technology (TUHH), Eißendorfer Straße 40, 21073 Hamburg, Germany; (A.L.); (M.K.)
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10
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Biodegradable polymeric conduits: Platform materials for guided nerve regeneration and vascular tissue engineering. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2021.103014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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11
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Badgujar HF, Kumar U. Green Approach Towards Morphology-Controlled Synthesis of Zein-Functionalized TiO 2 Nanoparticles for Cosmeceutical Application. Eur J Pharm Sci 2021; 167:106010. [PMID: 34537374 DOI: 10.1016/j.ejps.2021.106010] [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: 06/11/2021] [Revised: 08/23/2021] [Accepted: 09/15/2021] [Indexed: 11/18/2022]
Abstract
Biomolecular approaches for synthesis of inorganic nanoparticle are very popular among researchers and exhibit significant shape-directing morphologies in classified condition. The proteins are the most abundant macromolecules and employed for the hybrid synthesis as well as shape-directing agent. The present study is designed to investigate the potential role of a plant protein 'zein' to synthesize hybrid TiO2 nanoparticles. This versatile amphiphilic protein paves a unique path towards shape directing synthesis and act as template in the biomineralization process. The structural changes occurred in protein structure is thoroughly characterized using the circular dichroism (CD) and FTIR spectroscopy. UV, XPS and HRTEM analysis confirms the presence of zein on the nanoparticle surface. The proposed approach provides finely engineered nano-cuboidal (22.75±5.07 nm) geometry with homogenous dispersion, curved edged cuboids (403.51±0.05 nm) and spherical (97.85±0.62 nm) shaped from different modification, as evidenced by TEM. We also discussed in-vitro method for the detection of antimicrobial activity of nanocuboids against acne causing microorganisms such as Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli and Streptococcus agalactiae. Our results demonstrate that hybrid nanocuboids could be an efficient green material and provide cognitive antimicrobial evidence that could be deployed for cosmeceutical application.
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Affiliation(s)
- Hina F Badgujar
- School of Nano Sciences, Central University of Gujarat, Gandhinagar 382030, Gujarat, India.
| | - Umesh Kumar
- School of Nano Sciences, Central University of Gujarat, Gandhinagar 382030, Gujarat, India.
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12
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Chen G, Jiao H, Chen Y, Zhang Z. Incorporation of antibacterial zein/thymol nanoparticles dispersed using nanobubble technology improves the functional performance of gelatin films. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2021.107051] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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13
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Himmler M, Schubert DW, Fuchsluger TA. Examining the Transmission of Visible Light through Electrospun Nanofibrous PCL Scaffolds for Corneal Tissue Engineering. NANOMATERIALS 2021; 11:nano11123191. [PMID: 34947541 PMCID: PMC8705195 DOI: 10.3390/nano11123191] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 11/21/2021] [Accepted: 11/23/2021] [Indexed: 12/28/2022]
Abstract
The transparency of nanofibrous scaffolds is of highest interest for potential applications like corneal wound dressings in corneal tissue engineering. In this study, we provide a detailed analysis of light transmission through electrospun polycaprolactone (PCL) scaffolds. PCL scaffolds were produced via electrospinning, with fiber diameters in the range from (35 ± 13) nm to (167 ± 35) nm. Light transmission measurements were conducted using UV-vis spectroscopy in the range of visible light and analyzed with respect to the influence of scaffold thickness, fiber diameter, and surrounding medium. Contour plots were compiled for a straightforward access to light transmission values for arbitrary scaffold thicknesses. Depending on the fiber diameter, transmission values between 15% and 75% were observed for scaffold thicknesses of 10 µm. With a decreasing fiber diameter, light transmission could be improved, as well as with matching refractive indices of fiber material and medium. For corneal tissue engineering, scaffolds should be designed as thin as possible and fabricated from polymers with a matching refractive index to that of the human cornea. Concerning fiber diameter, smaller fiber diameters should be favored for maximizing graft transparency. Finally, a novel, semi-empirical formulation of light transmission through nanofibrous scaffolds is presented.
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Affiliation(s)
- Marcus Himmler
- Department of Ophthalmology, University Medical Center Rostock, Doberaner Straße 140, 18057 Rostock, Germany
- Institute of Polymer Materials, Friedrich-Alexander University Erlangen-Nuremberg, Martenstraße 7, 91058 Erlangen, Germany;
- Correspondence: (M.H.); (T.A.F.)
| | - Dirk W. Schubert
- Institute of Polymer Materials, Friedrich-Alexander University Erlangen-Nuremberg, Martenstraße 7, 91058 Erlangen, Germany;
| | - Thomas A. Fuchsluger
- Department of Ophthalmology, University Medical Center Rostock, Doberaner Straße 140, 18057 Rostock, Germany
- Correspondence: (M.H.); (T.A.F.)
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14
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Abdelsalam AM, Somaida A, Ambreen G, Ayoub AM, Tariq I, Engelhardt K, Garidel P, Fawaz I, Amin MU, Wojcik M, Bakowsky U. Surface tailored zein as a novel delivery system for hypericin: Application in photodynamic therapy. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 129:112420. [PMID: 34579929 DOI: 10.1016/j.msec.2021.112420] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 08/27/2021] [Accepted: 09/01/2021] [Indexed: 01/22/2023]
Abstract
Zein is an FDA-approved maize protein featured by its manipulative surface and the possibility of fabrication into nanomaterials. Although extensive research has been carried out in zein-based technology, limited work is available for the application of zein in the field of cancer photodynamic therapy (PDT). In this work, we report zein as a carrier for the natural photosensitizer hypericin in the PDT of hepatocellular carcinoma in vitro. Zein was modified through chemical PEGylation to form PEGylated zein micelles that were compared with two zein nanoparticle formulations physically stabilized by either the lecithin/pluronic mixture or sodium caseinate. FT-IR, 1HNMR and HP-SEC MALS approaches were employed to confirm the chemical PEGylation of zein. Our developed zein nanoparticles and micelles were further characterized by photon correlation spectroscopy (PCS) and atomic force microscopy (AFM). The obtained results showed relatively smaller sizes and higher encapsulation of hypericin in the micellar zein than the nanoparticle-based formulations. Phototoxicity on hepatocellular carcinoma (HepG2 cells) manifested a dose-dependent toxicity pattern of all designed zein formulations. However, superior cytotoxicity was prominent for the hypericin-based micelles, which was influenced by the higher cellular uptake profile. Consequently, the treated HepG2 cells manifested a higher level of intracellular generated ROS and disruption of mitochondrial membrane potential, which induced apoptotic cell death. Comparatively, the designed hypericin formulations indicated lower phototoxicity profile in murine fibroblast L929 cells reflecting their safety on normal cells. Our investigations suggested that the surface-modified zein could be employed to enhance the delivery of the hydrophobic hypericin in PDT and pave the way for future in vivo and clinical applications in cancer treatment.
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Affiliation(s)
- Ahmed M Abdelsalam
- Department of Pharmaceutics and Biopharmaceutics, Philipps University of Marburg, Robert-Koch Strasse 4, 35037 Marburg, Germany; Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Al-Azhar University, Assiut, Egypt
| | - Ahmed Somaida
- Department of Pharmaceutics and Biopharmaceutics, Philipps University of Marburg, Robert-Koch Strasse 4, 35037 Marburg, Germany
| | - Ghazala Ambreen
- Department of Pharmaceutics and Biopharmaceutics, Philipps University of Marburg, Robert-Koch Strasse 4, 35037 Marburg, Germany
| | - Abdallah M Ayoub
- Department of Pharmaceutics and Biopharmaceutics, Philipps University of Marburg, Robert-Koch Strasse 4, 35037 Marburg, Germany; Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
| | - Imran Tariq
- Department of Pharmaceutics and Biopharmaceutics, Philipps University of Marburg, Robert-Koch Strasse 4, 35037 Marburg, Germany; Punjab University College of Pharmacy, University of Punjab, Allama Iqbal Campus, 54000 Lahore, Pakistan
| | - Konrad Engelhardt
- Department of Pharmaceutics and Biopharmaceutics, Philipps University of Marburg, Robert-Koch Strasse 4, 35037 Marburg, Germany
| | - Patrick Garidel
- Department of Physical Chemistry, Martin-Luther-University Halle-Wittenberg, Von-Danckelmann-Platz 4, D-06120 Halle/Saale, Germany
| | - Ibrahim Fawaz
- Department of Pharmaceutics and Biopharmaceutics, Philipps University of Marburg, Robert-Koch Strasse 4, 35037 Marburg, Germany
| | - Muhammed U Amin
- Department of Pharmaceutics and Biopharmaceutics, Philipps University of Marburg, Robert-Koch Strasse 4, 35037 Marburg, Germany
| | - Matthias Wojcik
- Department of Pharmaceutics and Biopharmaceutics, Philipps University of Marburg, Robert-Koch Strasse 4, 35037 Marburg, Germany
| | - Udo Bakowsky
- Department of Pharmaceutics and Biopharmaceutics, Philipps University of Marburg, Robert-Koch Strasse 4, 35037 Marburg, Germany.
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15
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Surface-Tailored Zein Nanoparticles: Strategies and Applications. Pharmaceutics 2021; 13:pharmaceutics13091354. [PMID: 34575430 PMCID: PMC8465254 DOI: 10.3390/pharmaceutics13091354] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 08/23/2021] [Accepted: 08/25/2021] [Indexed: 12/15/2022] Open
Abstract
Plant-derived proteins have emerged as leading candidates in several drug and food delivery applications in diverse pharmaceutical designs. Zein is considered one of the primary plant proteins obtained from maize, and is well known for its biocompatibility and safety in biomedical fields. The ability of zein to carry various pharmaceutically active substances (PAS) position it as a valuable contender for several in vitro and in vivo applications. The unique structure and possibility of surface covering with distinct coating shells or even surface chemical modifications have enabled zein utilization in active targeted and site-specific drug delivery. This work summarizes up-to-date studies on zein formulation technology based on its structural features. Additionally, the multiple applications of zein, including drug delivery, cellular imaging, and tissue engineering, are discussed with a focus on zein-based active targeted delivery systems and antigenic response to its potential in vivo applicability.
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16
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Hosseini F, Miri MA, Najafi M, Soleimanifard S, Aran M. Encapsulation of rosemary essential oil in zein by electrospinning technique. J Food Sci 2021; 86:4070-4086. [PMID: 34392535 DOI: 10.1111/1750-3841.15876] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 07/05/2021] [Accepted: 07/11/2021] [Indexed: 11/28/2022]
Abstract
In this study, rosemary essential oil was encapsulated in zein-electrospun fibers at different concentrations of loading (0%, 2.5%, 5%, and 10% v/v). The chemical composition of rosemary essential oil was determined by GC-MS. The resultant zein-electrospun fibers were characterized by SEM, AFM, XRD, DSC, FTIR, and NMR. After being loaded with the essential oil, the fibers were evaluated for antimicrobial properties by the disc diffusion method against S. aureus (ATCC 1112) and E. coli (ATCC 1330). The release test was studied at pH values of 3 and 7.2 in phosphate buffer for 180 min. The GC-MS indicated that α-pinene occurred as a major compound in rosemary essential oil. Diameters of the zein-electrospun fibers increased in response to higher concentrations of rosemary essential oil. The AFM assay attributed a tubular morphology to the fibers. The physical status of rosemary essential oil in zein-electrospun fibers was determined by X-ray diffraction (XRD). DSC thermograms and FTIR spectra confirmed the existence of the rosemary essential oil in zein-electrospun fibers. FTIR spectra also indicated that adding rosemary essential oil to the fibers affected the secondary structure of zein protein. The NMR study showed that the electrospinning process did not change the secondary structure of zein. Disc diffusion indicated that zein-electrospun mats generated inhibition zones against S. aureus and E. coli. The release test revealed that pH values significantly affect the release of rosemary essential oil from fibers. The results demonstrated how loading zein-electrospun fibers with rosemary essential oil can benefit food packaging. PRACTICAL APPLICATION: In this study, electrospun fibers were produced from food-grade biopolymer to encapsulate rosemary essential oil. This product can be produced at industrial scale as an active food packaging/coating, controlled release, and delivery of the rosemary essential oil to food products and gastrointestinal. Also, it can be considered as a functional food to increase health.
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Affiliation(s)
- Faeghe Hosseini
- Department of Food Science and Technology, Faculty of Agriculture, University of Zabol, Zabol, Iran
| | - Mohammad Amin Miri
- Department of Food Science and Technology, Faculty of Agriculture, University of Zabol, Zabol, Iran.,Electrospinning Research Laboratory, University of Zabol, Zabol, Iran
| | - Mohammadali Najafi
- Department of Food Science and Technology, Faculty of Agriculture, University of Zabol, Zabol, Iran
| | - Sediqeh Soleimanifard
- Department of Food Science and Technology, Faculty of Agriculture, University of Zabol, Zabol, Iran
| | - Mehdi Aran
- Department of Horticulture and Landscape, Faculty of Agriculture, University of Zabol, Zabol, Iran
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Physicochemical properties of chitosan/zein/essential oil emulsion-based active films functionalized by polyphenols. FUTURE FOODS 2021. [DOI: 10.1016/j.fufo.2021.100033] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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18
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Shen N, Zhang Y, Raza A, Chang L, Wang JY. Effects of the micro/nanostructure of electrospun zein fibres on cells in simulated blood flow environment. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 122:111900. [PMID: 33641903 DOI: 10.1016/j.msec.2021.111900] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 11/21/2020] [Accepted: 01/17/2021] [Indexed: 12/14/2022]
Abstract
In order to prevent thrombosis, reduce intima hyperplasia, and to maintain long-term patency after implantation of an artificial blood vessel, the formation of intact endothelial cells layer on an inner surface of graft is desirable. The present study aimed to improve endothelial cell adhesion by regulating the morphology of the inner surface of artificial blood vessels. Zein fibre membranes with three fibre diameters (small, ~100 nm; medium, ~500 nm; and large, ~1000 nm) were constructed by electrospinning. A flow chamber device was designed to simulate the blood flow environment. The morphology and adhesion of human umbilical vein fusion cells (EA.hy926) on the surface of the fibre membranes were studied under a shear stress of approximately 15 dynes/cm2. The results showed that oriented electrospun zein fibre surfaces with both medium- and large-diameter fibres can regulate the morphology of endothelial cells (EA.hy926), which are aligned by the fibre direction. The three fibre membranes improved the adhesion of endothelial cells significantly compared to that on the flat membrane. When the fibre direction was fixed parallel to the fluid direction, the medium-diameter oriented-fibre membrane could significantly improve the ability endothelial cells to resist shear stress, and there was a significant difference at 1, 2 and 4 h time points compared with the shear stress resistance on the small-diameter and large-diameter oriented-fibre membranes. When the fibre direction was perpendicular to the fluid direction, again the medium-diameter oriented-fibre membrane improved the ability of endothelial cells to resist shear stress significantly at 1 and 2 h time points. It was concluded that by changing the diameter and arrangement of electrospun fibres, cell morphology control and shear stress resistance can be achieved.
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Affiliation(s)
- Naian Shen
- School of Biomedical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Yue Zhang
- School of Biomedical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Ali Raza
- School of Biomedical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Liu Chang
- School of Biomedical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Jin-Ye Wang
- School of Biomedical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.
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Maciąg F, Moskalewicz T, Kowalski K, Łukaszczyk A, Hadzhieva Z, Boccaccini AR. The Effect of Electrophoretic Deposition Parameters on the Microstructure and Adhesion of Zein Coatings to Titanium Substrates. MATERIALS (BASEL, SWITZERLAND) 2021; 14:E312. [PMID: 33435364 PMCID: PMC7827670 DOI: 10.3390/ma14020312] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 12/23/2020] [Accepted: 01/07/2021] [Indexed: 11/23/2022]
Abstract
Zein coatings were obtained by electrophoretic deposition (EPD) on commercially pure titanium substrates in an as-received state and after various chemical treatments. The properties of the zein solution, zeta potential and conductivity, at varying pH values were investigated. It was found that the zein content and the ratio of water to ethanol of the solution used for EPD, as well as the process voltage value and time, significantly influence the morphology of coatings. The deposits obtained from the solution containing 150 g/L and 200 g/L of zein and 10 vol % of water and 90 vol % of ethanol, about 4-5 μm thick, were dense and homogeneous. The effect of chemical treatment of the Ti substrate surface prior to EPD on coating adhesion to the substrate was determined. The coatings showed the highest adhesion to the as-received and anodized substrates due to the presence of a thick TiO2 layer on their surfaces and the presence of specific surface features. Coated titanium substrates showed slightly lower electrochemical corrosion resistance than the uncoated one in Ringer's solution. The coatings showed a well-developed surface topography compared to the as-received substrate, and they demonstrated hydrophilic nature. The present results provide new insights for the further development of zein-based composite coatings for biomedical engineering applications.
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Affiliation(s)
- Filip Maciąg
- Faculty of Metals Engineering and Industrial Computer Science, AGH University of Science and Technology, Czarnowiejska 66, 30-054 Kraków, Poland; (F.M.); (K.K.)
| | - Tomasz Moskalewicz
- Faculty of Metals Engineering and Industrial Computer Science, AGH University of Science and Technology, Czarnowiejska 66, 30-054 Kraków, Poland; (F.M.); (K.K.)
| | - Kazimierz Kowalski
- Faculty of Metals Engineering and Industrial Computer Science, AGH University of Science and Technology, Czarnowiejska 66, 30-054 Kraków, Poland; (F.M.); (K.K.)
| | - Alicja Łukaszczyk
- Faculty of Foundry Engineering, AGH University of Science and Technology, Reymonta 23, 30-059 Kraków, Poland;
| | - Zoya Hadzhieva
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, 91058 Erlangen, Germany; (Z.H.); (A.R.B.)
| | - Aldo Roberto Boccaccini
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, 91058 Erlangen, Germany; (Z.H.); (A.R.B.)
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Shrestha S, Shrestha BK, Ko SW, Kandel R, Park CH, Kim CS. Engineered cellular microenvironments from functionalized multiwalled carbon nanotubes integrating Zein/Chitosan @Polyurethane for bone cell regeneration. Carbohydr Polym 2021; 251:117035. [DOI: 10.1016/j.carbpol.2020.117035] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 08/20/2020] [Accepted: 08/30/2020] [Indexed: 01/15/2023]
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Impact of heating and drying temperatures on the properties of konjac glucomannan/curdlan blend films. Int J Biol Macromol 2020; 167:1544-1551. [PMID: 33217463 DOI: 10.1016/j.ijbiomac.2020.11.108] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 11/12/2020] [Accepted: 11/15/2020] [Indexed: 11/22/2022]
Abstract
The impact of preparation conditions including heating temperature (from 60 °C to 90 °C) and drying temperatures (from 25 °C to 90 °C) on the properties of pure curdlan film and konjac glucomannan (KGM) and curdlan blend films were analyzed. Microstructure analysis indicated the KGM addition could significantly improve the relatively poor film-forming property of curdlan. FTIR and X-ray analysis showed that at high heating temperature 90 °C, molecular interaction might be enhanced in the films due to the stretched structure of curdlan and dissociation of curdlan bundles or triple-helix structure. This was supported by the changes in the mechanical property, surface hydrophobicity, moisture barrier, and moisture tolerance property. The impacts of drying temperature were some different for the curdlan film and KGM/curdlan blend film, and were explained from the molecular hydrophilicity-hydrophobicity, compactness of the films, curdlan conformation, and molecular interaction. This work guided biodegradable film production especially with curdlan added.
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23
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Tang R, Liu L, Li M, Yao X, Yang Y, Zhang S, Li F. Transparent Microcrystalline Cellulose/Polyvinyl Alcohol Paper as a New Platform for Three-Dimensional Cell Culture. Anal Chem 2020; 92:14219-14227. [PMID: 32962346 DOI: 10.1021/acs.analchem.0c03458] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Multilayered and stacked cellulose paper has emerged as a promising platform for construction of three-dimensional (3D) cell culture because of its low cost, good biocompatibility, and high porosity. However, its poor light transmission makes it challenging to directly and clearly monitor cell behaviors (e.g., growth and proliferation) on the paper-based platform using an optical microscope. In this work, we developed a transparent microcrystalline cellulose/polyvinyl alcohol (MCC/PVA) paper with irregular pores through dissolution and regeneration of microcrystalline nanocellulose, addition of a porogen reagent (NaCl), and subsequently dipping in PVA solutions. The transparent MCC paper displays high porosity (up to 90%), adjustable pore size (between 23 and 46 μm), large thickness (from 315 to 436 μm), and high light transmission under water (>95%). Through further modification of the transparent MCC paper with PVA, the obtained transparent MCC/PVA paper shows enhanced mechanical properties (dry and wet strengths), good hydrophilicity (with a contact angle of 70.8°), and improved biocompatibility (cell viability up to 90%). By stacking and destacking multiple layers of the transparent MCC/PVA paper, it has been used for both two-dimensional and three-dimensional cell culture platforms. The transparent MCC/PVA paper under water enables both direct observation of cell morphology by an optical microscope via naked eyes and fluorescence microscope after staining. We envision that the developed transparent MCC/PVA paper holds great potential for future applications in various bioanalytical and biomedical fields, such as drug screening, tissue engineering, and organ-on-chips.
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Affiliation(s)
- Ruihua Tang
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi'an 710021, P. R. China.,National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science & Technology, Xi'an 710021, P. R. China.,The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, P. R. China.,Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University, Xi'an 710049, P. R. China.,Limerick Pulp and Paper Centre, University of New Brunswick, Fredericton, New Brunswick E3B 5A3, Canada
| | - Lina Liu
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi'an 710021, P. R. China.,National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science & Technology, Xi'an 710021, P. R. China.,Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University, Xi'an 710049, P. R. China.,Shaanxi Province Key Laboratory of Papermaking Technology and Specialty Paper Development, Shaanxi University of Science & Technology, Xi'an 710021, P. R. China.,Key Laboratory of Paper Based Functional Materials of China National Light Industry, Shaanxi University of Science & Technology, Xi'an 710021, P. R. China
| | - Min Li
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi'an 710021, P. R. China.,National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science & Technology, Xi'an 710021, P. R. China
| | - Xue Yao
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi'an 710021, P. R. China.,National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science & Technology, Xi'an 710021, P. R. China
| | - Yaowei Yang
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, P. R. China.,Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Sufeng Zhang
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi'an 710021, P. R. China.,Shaanxi Province Key Laboratory of Papermaking Technology and Specialty Paper Development, Shaanxi University of Science & Technology, Xi'an 710021, P. R. China.,Key Laboratory of Paper Based Functional Materials of China National Light Industry, Shaanxi University of Science & Technology, Xi'an 710021, P. R. China
| | - Fei Li
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, P. R. China.,Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University, Xi'an 710049, P. R. China
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Dong S, Guo P, Chen GY, Jin N, Chen Y. Study on the atmospheric cold plasma (ACP) treatment of zein film: Surface properties and cytocompatibility. Int J Biol Macromol 2020; 153:1319-1327. [PMID: 31756479 DOI: 10.1016/j.ijbiomac.2019.10.268] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 10/12/2019] [Accepted: 10/28/2019] [Indexed: 01/02/2023]
Abstract
The cell adhesion and proliferation of zein-based biomaterials in cell culture application are limited by the strong hydrophobic surface with low surface energy. In this study, atmospheric cold plasma (ACP) was developed as a modification approach in enhancing the surface hydrophilic and cytocompatibility of zein films. The results indicated that water contact angles decreased from 72.85° (untreated) to 47.43° under the voltage of 100 V. The improvement of the surface free energy (SFE) was mainly attributed to the polar component rather than dispersive component. X-ray photoelectron spectroscopy (XPS) results indicated the change of surface physicochemical properties was mainly due to the partially transformation of long-chain aliphatic hydrocarbons (CH and/or CC) to oxygen- and nitrogen-containing bonds (CO, CO and CN). Furthermore, the content of secondary structure demonstrated β-turn and α-helix were transformed into β-sheet and random coil after ACP treatment. Combining with the cell experiment results, plasma treatment could significantly improve the adhesion rate and proliferation activity of C2C12 cells on zein films. With better cytocompatibility, the potentials of zein in tissue engineering scaffold could be readily exploited.
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Affiliation(s)
- Shuang Dong
- School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255000, Shandong, China
| | - Peng Guo
- School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255000, Shandong, China.
| | - Gui-Yun Chen
- State Key Laboratory of Food Nutrition and Safety, College of Food Engineering and Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Nan Jin
- State Key Laboratory of Food Nutrition and Safety, College of Food Engineering and Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Ye Chen
- State Key Laboratory of Food Nutrition and Safety, College of Food Engineering and Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China.
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26
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Aghaei Z, Ghorani B, Emadzadeh B, Kadkhodaee R, Tucker N. Protein-based halochromic electrospun nanosensor for monitoring trout fish freshness. Food Control 2020. [DOI: 10.1016/j.foodcont.2019.107065] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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27
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Hayat U, Raza A, Wang HJ, Wang JY. Preparation of ciprofloxacin loaded zein conduits with good mechanical properties and antibacterial activity. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 111:110766. [PMID: 32279795 DOI: 10.1016/j.msec.2020.110766] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 01/18/2020] [Accepted: 02/18/2020] [Indexed: 02/06/2023]
Abstract
Conduit scaffolds have potential applications in tissue engineering as nerve conduits, urological stent and blood vessel graft. Zein is a well-reported biopolymer in tissue engineering and drug delivery systems. Herein, we prepared ciprofloxacin loaded zein conduits using a facile rolling method. Zein conduits (ZCs) were evaluated for physical structure, porosity, bending stiffness, degradation, drug release, in vitro and in vivo antibacterial efficacy and cells toxicity. ZCs showed porous structure with porosity > 60 % and good mechanical strength with bending stiffness of 28.54 N.mm2. Slow enzymatic degradation (87 % in 30 days) was also observed for ZCs. Slow release of ciprofloxacin up to 42 days was observed that could assure prevention of post-implantation infection. In vitro and in vivo antibacterial study verified the short-time and long-time antibacterial efficacy of zein conduits on Gram-positive and Gram-negative bacteria. Live/dead measurement and CCK-8 assay on L929 cells demonstrated good cell compatibility for all zein conduits (>90 % cell viability and cells proliferation in 3 days). Overall, the rolling method could be exploited for preparation of ciprofloxacin loaded zein conduits, which had the potential for tissue engineering applications.
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Affiliation(s)
- Uzma Hayat
- School of Biomedical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Ali Raza
- School of Biomedical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Hua-Jie Wang
- School of Biomedical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China; JiaxingYaojiao Medical Device Co. Ltd., 321 Jiachuang Road, Jiaxing 314032, China.
| | - Jin-Ye Wang
- School of Biomedical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China; JiaxingYaojiao Medical Device Co. Ltd., 321 Jiachuang Road, Jiaxing 314032, China.
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Gunes S, Tamburaci S, Tihminlioglu F. A novel bilayer zein/MMT nanocomposite incorporated with H. perforatum oil for wound healing. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2019; 31:7. [PMID: 31838599 DOI: 10.1007/s10856-019-6332-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Accepted: 11/16/2019] [Indexed: 06/10/2023]
Abstract
Recently, layered structures composed of nanofibers have gained attention as a novel material to mimic skin tissue in wound healing applications. The aim of this study is to develop a novel hybrid bilayer material composed of zein based composite film and nanofiber layers as a wound dressing material. The upper layer was composed of H. perforatum oil incorporated zein film including MMT and the bottom layer was comprised of 3D electrospun zein/MMT nanofibers to induce wound healing with the controlled release of H. perforatum oil. The bilayer composites were characterized in terms of mechanical test, WVP, water uptake and surface wettability. Antimicrobial activity of the wound dressings against microorganisms were investigated by disc diffusion method. In vitro cytotoxicity of monolayer film and bilayer structure was performed using WST-1 assay on HS2 keratinocyte and 3T3 cell lines. Results indicated that the prepared monolayer films showed appropriate mechanical and gas barrier properties and surface wettability for wound healing. Controlled release of H. perforatum oil was obtained from fabricated membranes up to 48 h. Bilayer membranes showed antimicrobial activity against E. coli, S. aureus, and C. albicans and did not show any toxic effect on NIH3T3 mouse fibroblast and HS2 keratinocyte cell lines. In vitro scratch assay results indicated that H. perforatum oil had a wound healing effect by inducing fibroblast migration. The proliferation study supported these results by increasing fibroblast proliferation on H. perforatum oil loaded bilayer membranes.
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Affiliation(s)
- Seda Gunes
- Graduate Program of Bioengineering, İzmir Institute of Technology, İzmir, 35430, Turkey
| | - Sedef Tamburaci
- Graduate Program of Bioengineering, İzmir Institute of Technology, İzmir, 35430, Turkey
| | - Funda Tihminlioglu
- Department of Chemical Engineering, İzmir Institute of Technology, İzmir, 35430, Turkey.
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Sun G, Zhao Q, Liu S, Li B, Li Y. Complex of raw chitin nanofibers and zein colloid particles as stabilizer for producing stable pickering emulsions. Food Hydrocoll 2019. [DOI: 10.1016/j.foodhyd.2019.105178] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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30
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Riaz T, Iqbal MW, Saeed M, Yasmin I, Hassanin HAM, Mahmood S, Rehman A. In vitro survival of Bifidobacterium bifidum microencapsulated in zein-coated alginate hydrogel microbeads. J Microencapsul 2019; 36:192-203. [DOI: 10.1080/02652048.2019.1618403] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Tahreem Riaz
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
- International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, Jiangsu, China
- Department of Food, Nutrition and Home Sciences, National Institute of Food Science and Technology, University of Agriculture, Faisalabad, Pakistan
| | - Muhammad Waheed Iqbal
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
- International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, Jiangsu, China
- Department of Food, Nutrition and Home Sciences, National Institute of Food Science and Technology, University of Agriculture, Faisalabad, Pakistan
| | - Muhammad Saeed
- Department of Food, Nutrition and Home Sciences, National Institute of Food Science and Technology, University of Agriculture, Faisalabad, Pakistan
| | - Iqra Yasmin
- Department of Food, Nutrition and Home Sciences, National Institute of Food Science and Technology, University of Agriculture, Faisalabad, Pakistan
- Department of Food Science and Technology, University of Nebraska, Lincoln, NE, USA
- Department of Diet and Nutritional Science, Faculty of Health and Allied Science, Imperial College of Business Studies, Lahore, Pakistan
- Department of Food Science and Technology, Government College Women University, Faisalabad, Pakistan
| | - Hinawi A. M. Hassanin
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
- International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, Jiangsu, China
| | - Shahid Mahmood
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
- International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, Jiangsu, China
- Department of Food, Nutrition and Home Sciences, National Institute of Food Science and Technology, University of Agriculture, Faisalabad, Pakistan
| | - Abdur Rehman
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
- International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, Jiangsu, China
- Department of Food, Nutrition and Home Sciences, National Institute of Food Science and Technology, University of Agriculture, Faisalabad, Pakistan
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Wei Y, Hu L, Yao J, Shao Z, Chen X. Facile Dissolution of Zein Using a Common Solvent Dimethyl Sulfoxide. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:6640-6649. [PMID: 31041860 DOI: 10.1021/acs.langmuir.9b00670] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The conformation and stability of zein in solution are closely associated with its solvation process and influence the mechanical properties of the related zein-based materials. In this work, a common solvent dimethyl sulfoxide (DMSO) was used to dissolve zein, rather than solvents frequently used such as aqueous ethanol and acetic acid. It was found that DMSO could dissolve zein readily and the solution was stable for at least 2 weeks. Rheological analysis and small-angle X-ray scattering (SAXS) were employed to characterize the zein DMSO solution. Results of rheological analysis suggested a Huggins coefficient of 0.24, indicating DMSO to be a good solvent for zein. SAXS results revealed that zein adopted an elongated conformation and had dimensions of 2.8 nm × 2.8 nm × 14.8 nm in DMSO solution. Moreover, robust zein films were fabricated from zein DMSO solutions. The content of residual DMSO in the films was determined to be approximately 15 wt % by thermogravimetric analysis, in consistence with the value obtained by other two methods. The film showed a large breaking strain of 320.6% with a considerable breaking stress of 1.9 MPa, yielding a breaking energy of 376.2 MJ/m3. Therefore, the ease of dissolution and good mechanical performance of the final zein-based material make DMSO a potential solvent for fabrication of zein materials, thereby improving the scope of practical applications of zein.
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Affiliation(s)
- Yanxia Wei
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Laboratory of Advanced Materials , Fudan University , 220 Handan Road , Shanghai 200433 , People's Republic of China
| | - Linli Hu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Laboratory of Advanced Materials , Fudan University , 220 Handan Road , Shanghai 200433 , People's Republic of China
| | - Jinrong Yao
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Laboratory of Advanced Materials , Fudan University , 220 Handan Road , Shanghai 200433 , People's Republic of China
| | - Zhengzhong Shao
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Laboratory of Advanced Materials , Fudan University , 220 Handan Road , Shanghai 200433 , People's Republic of China
| | - Xin Chen
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Laboratory of Advanced Materials , Fudan University , 220 Handan Road , Shanghai 200433 , People's Republic of China
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Bortoletto-Santos R, Plotegher F, Roncato V, Majaron RF, Majaron VF, Polito WL, Ribeiro C. Strategy for Multinutrient Application in Integrated Granules Using Zein as a Coating Layer. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:9582-9587. [PMID: 30130384 DOI: 10.1021/acs.jafc.8b01319] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The efficiency of phosphate fertilizers is strongly limited by the acidity and high iron content and aluminum-based compounds in soils due to high P fixation. Coatings have been proposed as an alternative solution to reduce P losses by controlling the fertilizer release, but the literature is not conclusive about the most adequate material for that purpose. Herein we report a novel Zn-based coating for monoammonium phosphate (MAP) granules comprising ZnO nanoparticles and zein as a bicoating structure. Samples were prepared by dispersing ZnO and zein on the MAP surface and characterized, comparing the release in neutral and acidic solutions over time. Coating thickness/quality determined the nutrient release by a physical barrier effect. The results show that the zein coating overprotection avoids a fast nutrient release, keeping the local acid medium necessary to suppress ZnPO4 precipitation. A range of 2.5 to 10.0 wt % of zein was studied, indicating that 2.5 wt % coatings just present significant release control, which is similar until 10.0 wt % coating.
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Affiliation(s)
- Ricardo Bortoletto-Santos
- Laboratório Nacional de Nanotecnologia para o Agronegócio (LNNA) , Embrapa Instrumentação , Rua 15 de Novembro 1452, Centro , São Carlos , São Paulo 13560-970 , Brazil
- Instituto de Química de São Carlos , Universidade de São Paulo , Campus de São Carlos, Avenida Trabalhador São-Carlense, 400, Arnold Schimidt , São Carlos , São Paulo 13566-590 , Brazil
| | - Fábio Plotegher
- Laboratório Nacional de Nanotecnologia para o Agronegócio (LNNA) , Embrapa Instrumentação , Rua 15 de Novembro 1452, Centro , São Carlos , São Paulo 13560-970 , Brazil
| | - Vanderlei Roncato
- Instituto de Química de São Carlos , Universidade de São Paulo , Campus de São Carlos, Avenida Trabalhador São-Carlense, 400, Arnold Schimidt , São Carlos , São Paulo 13566-590 , Brazil
| | - Rafaela F Majaron
- Universidade Federal de São Carlos , Departamento de Química , Rodovia Washington Luiz, km 235 , São Carlos , São Paulo 13565-905 , Brazil
| | - Vinicius F Majaron
- Universidade Federal de São Carlos , Departamento de Química , Rodovia Washington Luiz, km 235 , São Carlos , São Paulo 13565-905 , Brazil
| | - Wagner L Polito
- Instituto de Química de São Carlos , Universidade de São Paulo , Campus de São Carlos, Avenida Trabalhador São-Carlense, 400, Arnold Schimidt , São Carlos , São Paulo 13566-590 , Brazil
| | - Caue Ribeiro
- Laboratório Nacional de Nanotecnologia para o Agronegócio (LNNA) , Embrapa Instrumentação , Rua 15 de Novembro 1452, Centro , São Carlos , São Paulo 13560-970 , Brazil
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Wu K, Zhu Q, Qian H, Xiao M, Corke H, Nishinari K, Jiang F. Controllable hydrophilicity-hydrophobicity and related properties of konjac glucomannan and ethyl cellulose composite films. Food Hydrocoll 2018. [DOI: 10.1016/j.foodhyd.2017.12.034] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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35
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Wang K, Wu K, Xiao M, Kuang Y, Corke H, Ni X, Jiang F. Structural characterization and properties of konjac glucomannan and zein blend films. Int J Biol Macromol 2017; 105:1096-1104. [DOI: 10.1016/j.ijbiomac.2017.07.127] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Revised: 07/03/2017] [Accepted: 07/19/2017] [Indexed: 10/19/2022]
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36
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Castilhos NDB, Sampaio NMFM, da Silva BC, Riegel-Vidotti IC, Grassi MT, Silva BJG. Physical-chemical characteristics and potential use of a novel alginate/zein hydrogel as the sorption phase for polar organic compounds. Carbohydr Polym 2017; 174:507-516. [PMID: 28821098 DOI: 10.1016/j.carbpol.2017.06.079] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Revised: 06/12/2017] [Accepted: 06/20/2017] [Indexed: 11/18/2022]
Abstract
A novel alginate based hydrogel was successfully prepared and tested for the solid phase microextraction of medium-to-high polarity compounds, when supported in a polypropylene (PP) fiber. Pure alginate when added onto the surface of the PP fiber, resulted in a significant improvement in the extraction efficiency of the analytes (except for β-estradiol). The alginate hydrogel was modified upon the incorporation of a small amount of zein, a corn protein. Interestingly, the alginate/zein-supported hydrogel was capable of successfully extracting compounds with low partition constant (Kow), such as 17-α-ethinyl estradiol, progesterone and estriol, since the initial water uptake decreased dramatically in this gel, therefore, leaving the alginate hydroxyl groups more available to interact with the polar compounds. In conclusion, this paper presents the preparation of a simple, low cost, reusable, and efficient sorption phase for the extraction of polar compounds with different polarities in aqueous samples, which is a current technological challenge in developing efficient wastewater treatment.
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Affiliation(s)
- Natara D B Castilhos
- Departamento de Química, Universidade Federal do Paraná, C.P. 19081, 81531-980 Curitiba, Brazil
| | - Naiara M F M Sampaio
- Departamento de Química, Universidade Federal do Paraná, C.P. 19081, 81531-980 Curitiba, Brazil
| | - Bruno C da Silva
- Departamento de Química, Universidade Federal do Paraná, C.P. 19081, 81531-980 Curitiba, Brazil
| | - Izabel C Riegel-Vidotti
- Departamento de Química, Universidade Federal do Paraná, C.P. 19081, 81531-980 Curitiba, Brazil
| | - Marco T Grassi
- Departamento de Química, Universidade Federal do Paraná, C.P. 19081, 81531-980 Curitiba, Brazil
| | - Bruno J G Silva
- Departamento de Química, Universidade Federal do Paraná, C.P. 19081, 81531-980 Curitiba, Brazil.
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Turasan H, Kokini JL. Advances in Understanding the Molecular Structures and Functionalities of Biodegradable Zein-Based Materials Using Spectroscopic Techniques: A Review. Biomacromolecules 2017; 18:331-354. [PMID: 27966349 DOI: 10.1021/acs.biomac.6b01455] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Hazal Turasan
- Department of Food Science, Purdue University, West Lafayette Indiana 47907, United States
| | - Jozef L. Kokini
- Department of Food Science, Purdue University, West Lafayette Indiana 47907, United States
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38
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Miao Y, Yang R, Deng DYB, Zhang LM. Poly(l-lysine) modified zein nanofibrous membranes as efficient scaffold for adhesion, proliferation, and differentiation of neural stem cells. RSC Adv 2017. [DOI: 10.1039/c7ra00189d] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Cell viability, adhesion, proliferation, and differentiation of neural stem cells (NSCs) on zein nanofibrous membranes could be improved by poly(l-lysine) modification.
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Affiliation(s)
- Yingling Miao
- Department of Polymer and Materials Science
- School of Chemistry
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education
- Guangdong Provincial Key Laboratory for High Performance Polymer-based Composites
- Sun Yat-sen University
| | - Ruirui Yang
- Research Center of Translational Medicine
- The First Affiliated Hospital
- Guangdong Provincial Key Laboratory of Orthopedics and Traumatology
- Sun Yat-sen University
- Guangzhou 510080
| | - David Y. B. Deng
- Research Center of Translational Medicine
- The First Affiliated Hospital
- Guangdong Provincial Key Laboratory of Orthopedics and Traumatology
- Sun Yat-sen University
- Guangzhou 510080
| | - Li-Ming Zhang
- School of Materials Science and Engineering
- Sun Yat-sen University
- Guangzhou 510275
- China
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Qi H, Cao J, Xin Y, Mao X, Xie D, Luo J, Chu B. Dual responsive zein hydrogel membrane with selective protein adsorption and sustained release property. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 70:347-356. [DOI: 10.1016/j.msec.2016.09.010] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2016] [Revised: 08/15/2016] [Accepted: 09/06/2016] [Indexed: 11/27/2022]
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Zhang S, Chen X, Yu J, Hong B, Lei Q, Fang W. Hydrophobic fractal surface from glycerol tripalmitate and the effects on C6 glioma cell growth. Colloids Surf B Biointerfaces 2016; 142:377-384. [PMID: 26970826 DOI: 10.1016/j.colsurfb.2016.03.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Revised: 03/02/2016] [Accepted: 03/03/2016] [Indexed: 11/15/2022]
Abstract
To provide a biomimic environment for glial cell culture, glycerol tripalmitate (PPP) has been used as a raw material to prepare fractal surfaces with different degrees of hydrophobicity. The spontaneous formation of the hydrophobic fractal surfaces was monitored by differential scanning calorimetry (DSC) and X-ray diffraction (XRD). The surface morphologies were observed by a scanning electron microscope (SEM), and then the fractal dimension (FD) values of the surfaces were determined with the box-counting method. C6 glioma cells were cultured and compared on different hydrophobic PPP surfaces and poly-L-lysine (PLL)-coated surface. The cell numbers as a function of incubation time on different surfaces during the cell proliferation process were measured, and the cell morphologies were observed under a fluorescence microscope. Influences of hydrophobic fractal surfaces on the cell number and morphology were analyzed. The experimental results show that the cell proliferation rates decrease while the cell morphology complexities increase with the growth of the fractal dimensions of the PPP surfaces.
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Affiliation(s)
- Shanshan Zhang
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Xuerui Chen
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Jing Yu
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Biyuan Hong
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Qunfang Lei
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China.
| | - Wenjun Fang
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China.
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41
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Zhang Y, Cui L, Che X, Zhang H, Shi N, Li C, Chen Y, Kong W. Zein-based films and their usage for controlled delivery: Origin, classes and current landscape. J Control Release 2015; 206:206-19. [DOI: 10.1016/j.jconrel.2015.03.030] [Citation(s) in RCA: 122] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Revised: 03/24/2015] [Accepted: 03/25/2015] [Indexed: 12/11/2022]
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Trujillo-de Santiago G, Portales-Cabrera CG, Portillo-Lara R, Araiz-Hernández D, Del Barone MC, García-López E, Rojas-de Gante C, de los Angeles De Santiago-Miramontes M, Segoviano-Ramírez JC, García-Lara S, Rodríguez-González CÁ, Alvarez MM, Di Maio E, Iannace S. Supercritical CO2 foaming of thermoplastic materials derived from maize: proof-of-concept use in mammalian cell culture applications. PLoS One 2015; 10:e0122489. [PMID: 25859853 PMCID: PMC4393026 DOI: 10.1371/journal.pone.0122489] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Accepted: 02/25/2015] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Foams are high porosity and low density materials. In nature, they are a common architecture. Some of their relevant technological applications include heat and sound insulation, lightweight materials, and tissue engineering scaffolds. Foams derived from natural polymers are particularly attractive for tissue culture due to their biodegradability and bio-compatibility. Here, the foaming potential of an extensive list of materials was assayed, including slabs elaborated from whole flour, the starch component only, or the protein fraction only of maize seeds. METHODOLOGY/PRINCIPAL FINDINGS We used supercritical CO2 to produce foams from thermoplasticized maize derived materials. Polyethylene-glycol, sorbitol/glycerol, or urea/formamide were used as plasticizers. We report expansion ratios, porosities, average pore sizes, pore morphologies, and pore size distributions for these materials. High porosity foams were obtained from zein thermoplasticized with polyethylene glycol, and from starch thermoplasticized with urea/formamide. Zein foams had a higher porosity than starch foams (88% and 85%, respectively) and a narrower and more evenly distributed pore size. Starch foams exhibited a wider span of pore sizes and a larger average pore size than zein (208.84 vs. 55.43 μm2, respectively). Proof-of-concept cell culture experiments confirmed that mouse fibroblasts (NIH 3T3) and two different prostate cancer cell lines (22RV1, DU145) attached to and proliferated on zein foams. CONCLUSIONS/SIGNIFICANCE We conducted screening and proof-of-concept experiments on the fabrication of foams from cereal-based bioplastics. We propose that a key indicator of foamability is the strain at break of the materials to be foamed (as calculated from stress vs. strain rate curves). Zein foams exhibit attractive properties (average pore size, pore size distribution, and porosity) for cell culture applications; we were able to establish and sustain mammalian cell cultures on zein foams for extended time periods.
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Affiliation(s)
- Grissel Trujillo-de Santiago
- Centro de Biotecnología-FEMSA, Tecnológico de Monterrey, Monterrey, Nuevo León, México
- Harvard-MIT Helath Sciences and Technology, Brigham and Women’s Hospital, Cambridge, Massachusetts, United States of America
| | | | - Roberto Portillo-Lara
- Centro de Biotecnología-FEMSA, Tecnológico de Monterrey, Monterrey, Nuevo León, México
| | - Diana Araiz-Hernández
- Centro de Biotecnología-FEMSA, Tecnológico de Monterrey, Monterrey, Nuevo León, México
| | - Maria Cristina Del Barone
- Institute of Polymers, Composites and Biomaterials, Consiglio Nazionale delle Ricerche, Naples, Italy
| | - Erika García-López
- Centro de Innovación en Diseño y Tecnología, Tecnológico de Monterrey, Monterrey, Nuevo León, México
| | | | | | | | - Silverio García-Lara
- Centro de Biotecnología-FEMSA, Tecnológico de Monterrey, Monterrey, Nuevo León, México
| | | | - Mario Moisés Alvarez
- Centro de Biotecnología-FEMSA, Tecnológico de Monterrey, Monterrey, Nuevo León, México
- Harvard-MIT Helath Sciences and Technology, Brigham and Women’s Hospital, Cambridge, Massachusetts, United States of America
| | - Ernesto Di Maio
- Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale, University of Naples Federico II, Naples, Italy
| | - Salvatore Iannace
- Institute of Polymers, Composites and Biomaterials, Consiglio Nazionale delle Ricerche, Naples, Italy
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43
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Shahlori R, Waterhouse GIN, Nelson ARJ, McGillivray DJ. Morphological, chemical and kinetic characterisation of zein protein-induced biomimetic calcium phosphate films. J Mater Chem B 2015; 3:6213-6223. [DOI: 10.1039/c5tb00702j] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
A zein protein layer was used to mineralize thin films of calcium phosphate at the air–solution interface producing an iridescent mineral film with novel nano-morphology.
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Affiliation(s)
- Rayomand Shahlori
- School of Chemical Sciences
- University of Auckland
- Auckland 1142
- New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology
| | - Geoffrey I. N. Waterhouse
- School of Chemical Sciences
- University of Auckland
- Auckland 1142
- New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology
| | - Andrew R. J. Nelson
- Bragg Institute
- Australian Nuclear Science and Technology Organisation
- Australia
| | - Duncan J. McGillivray
- School of Chemical Sciences
- University of Auckland
- Auckland 1142
- New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology
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