Effect of Voltage on the Mechanical and Water Resistance Properties of Zein Films by Electrophoretic Deposition

Chen, Ye; Ye, Ran; Wang, Junyu

doi:10.1007/s11947-014-1430-7

Cited by 8 publications

(4 citation statements)

References 29 publications

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“…During EPD, charged particles or molecules in suspension migrate to the oppositely charged electrode (substrate) where they are then deposited. There is very limited previous work reporting the EPD of zein [27][28][29], and there has been no previous investigation with regards to EPD of a zein/BG composite. This work presents for the first time the fabrication of zein/BG composite coatings formed through EPD.…”

Section: Introductionmentioning

confidence: 99%

Bioactive and Antibacterial Coatings Based on Zein/Bioactive Glass Composites by Electrophoretic Deposition

et al. 2018

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This study investigated the electrophoretic deposition (EPD) of the natural polymer zein combined with bioactive glass (BG) particles. Through the deposition of various BG compositions, namely 45S5 BG and Cu-doped BG, this work sought to demonstrate the ability of the films to potentiate the formation of hydroxyapatite (HA) in contact with simulated body fluid (SBF). Following incubation in SBF, the physical and chemical surface properties of the EPD films were evaluated using different characterization techniques. The formation of HA at the surface of the coatings following immersion in SBF was confirmed using Fourier transform infrared spectroscopy (FTIR). The results demonstrated HA formation in all coatings after seven days of immersion in SBF. Coating morphology and degradation of the zein films were characterized using environmental scanning electron microscopy (ESEM). The results confirmed EPD as a very convenient room temperature technique for production of ion releasing, bioactive, and antibacterial coatings for potential application in orthopedics.

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Section: Introductionmentioning

confidence: 99%

Bioactive and Antibacterial Coatings Based on Zein/Bioactive Glass Composites by Electrophoretic Deposition

et al. 2018

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“…By comparing the breaking energy of the zein film before and after adsorbing atmospheric moisture (3.8 ± 0.1 and 376.2 ± 4.9 MJ/m 3 , respectively), it can be concluded that our zein film could act as a robust material. The mechanical properties of zein film prepared in this study were compared with those from the literature, ,,− and it was found that our zein film possessed the largest breaking strain (Table S1). Moreover, it can be found that those films with a similar breaking strain to our zein film either need a very complicated chemical modification procedure or need to add a large amount of plasticizer (30%) followed by cross-linking …”

Section: Results and Discussionmentioning

confidence: 95%

“…For instance, the breaking strain was only 3.7% when a zein film was prepared by cross-linking with 1% transglutaminase and plasticizing with ethylene glycol . A zein film prepared by electrophoretic deposition method also only showed a small breaking strain of 10% . It has been widely accepted that the mechanical properties of zein-based materials are closely related to the solvation process, the conformation of zein in solution, and post-treatments. ,, Hence, a good solvent for zein is necessary to obtain a stable system and produce zein-based materials with high performance.…”

Section: Introductionmentioning

confidence: 99%

Facile Dissolution of Zein Using a Common Solvent Dimethyl Sulfoxide

Wei

Yao

et al. 2019

Langmuir

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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/m 3 . 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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“…This technique is of particular interest for biomedical applications [4][5][6][7] due to the high purity of the deposited materials and the possibility of uniform deposition on complex shape substrates. Investigations focused on the development of advanced EPD bath formulations [8][9][10], particle charging additives [11], deposition kinetics and mechanisms [12][13][14]. Many investigations were performed on the EPD of organic-inorganic composites containing inorganic particles in a polymer matrix [4][5][6]15,16].…”

Section: Introductionmentioning

confidence: 99%

Surfactants for Electrophoretic Deposition of Polyvinylidene Fluoride–Silica Composites

Wang

Zhitomirsky

2022

Surfaces

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This investigation is motivated by the numerous advantages of electrophoretic deposition (EPD) for the fabrication of polyvinylidene fluoride (PVDF) and composite coatings and the various applications of such coatings. It is demonstrated that gallic acid (GA), caffeic acid (CFA), cholic acid (CA) and 2,3,4 trihydroxybenzoic acid (THB) can be used as charging and dispersing agents for the EPD of PVDF. The deposition yield of PVDF increases in the following order: THB < CFA < CA < GA. Test results indicate that the chemical structure of the dispersants exerts influence on the deposition efficiency. Potentiodynamic and impedance spectroscopy studies show the corrosion protection properties of PVDF coatings. GA is used for the co-EPD of PVDF with nanosilica and micron-size silica. The silica content in the composite coatings is varied by the variation of silica content in the suspensions. The ability to use GA as a charging and dispersing agent for the co-EPD of materials of different types paves the way for the fabrication of advanced organic–inorganic composites using EPD.

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Effect of Voltage on the Mechanical and Water Resistance Properties of Zein Films by Electrophoretic Deposition

Cited by 8 publications

References 29 publications

Bioactive and Antibacterial Coatings Based on Zein/Bioactive Glass Composites by Electrophoretic Deposition

Bioactive and Antibacterial Coatings Based on Zein/Bioactive Glass Composites by Electrophoretic Deposition

Facile Dissolution of Zein Using a Common Solvent Dimethyl Sulfoxide

Surfactants for Electrophoretic Deposition of Polyvinylidene Fluoride–Silica Composites

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