Fabrication and characterization of electrophoretically deposited chitosan-hydroxyapatite composite coatings on anodic titanium dioxide layers

Pawlik, Anna; Rehman, Muhammad Atiq Ur; Nawaz, Qaisar; Baştan, Fatih Erdem; Sulka, Grzegorz D.; Boccaccını, Aldo R.

doi:10.1016/j.electacta.2019.03.195

Cited by 57 publications

(60 citation statements)

References 39 publications

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“…It has been reported that lipid oxidization in chitosan‐coated products impede by the chitosan macromolecules (Ao et al, ; Hassannejad et al, ; Pawlik et al, ), while slow release of CGA from edible coating also retards lipid oxidization(Jiao et al, ; Liu & Park, ). It can be seen from Table that higher concentration of CGA resulted in lowest TBARS values during storage.…”

Section: Resultsmentioning

confidence: 99%

Effect of combined chlorogenic acid and chitosan coating on antioxidant, antimicrobial, and sensory properties of snakehead fish in cold storage

Cao

Islam

Chitrakar

et al. 2020

Food Science & Nutrition

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Degradation of meat quality has always been a burning issue in fish preservation. To maintain the quality, a novel combination of chlorogenic acid (CGA) and chitosan (CS) coating was applied to snakehead fish fillets. Fish fillets were soaked into 2% chitosan (2CS), 0.2% CGA in 2% chitosan (0.2CGA/2CS), 0.5% CGA in 2% chitosan (0.5CGA/2CS), or 1.0% CGA in 2% chitosan (1.0CGA/2CS) solution; and then, coated samples were vacuum‐packaged and stored at 2 ± 0.5°C. pH values, color values, microbial loads, hardness, sensory qualities, and oxidization of lipids and proteins of stored fish fillets were investigated for 5 months. Antimicrobial activity was found to be nonsignificant (p ≤ .05) among different coated fish fillets, while color, antioxidant, and pH values were significantly (p ≤ .05) different. Lipid oxidation and protein oxidation were found to be inhibited in 2CS‐, 0.5CGA/2CS‐ and 1.0CGA/2CS‐coated fish fillet. All CGA/CS coating delayed increase in pH (p ≤ .05) and resulted brown color. However, only CS coating resulted in higher sensory scores (p ≤ .05) and controlled browning. Considering antioxidant properties and other quality parameters, CGA/CS coating might be applied commercially in fish preservation.

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Section: Resultsmentioning

confidence: 99%

Effect of combined chlorogenic acid and chitosan coating on antioxidant, antimicrobial, and sensory properties of snakehead fish in cold storage

Cao

Islam

Chitrakar

et al. 2020

Food Science & Nutrition

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“…First, 1 g/L Cu(II)-CS particles were dissolved in 20 vol % distilled water and 1 vol % acetic acid by magnetic stirring. After complete dissolution, 79 vol % ethanol was added in that solution to minimize the hydrolysis of water during the EPD process [50]. After that the solution was stirred magnetically for 30 min for homogeneous mixing of Cu(II)-CS and to reduce the air bubbles in the suspension.…”

Section: Epd Of Cu(ii)-csmentioning

confidence: 99%

“…Swelling characteristic of Cu(II)-CS coatings was determined by immersing the coated specimens into 10 mL phosphate buffered saline (PBS) solution for 1,3,7,10,15,20,25,30,40,50,60,90, and 120 min. The swelling ratio was determined according to the following formula:…”

Section: Swelling Ratiomentioning

confidence: 99%

Electrophoretic Deposition of Copper(II)–Chitosan Complexes for Antibacterial Coatings

Akhtar

Ilyas

Dlouhý

et al. 2020

IJMS

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Bacterial infection associated with medical implants is a major threat to healthcare. This work reports the fabrication of Copper(II)–Chitosan (Cu(II)–CS) complex coatings deposited by electrophoretic deposition (EPD) as potential antibacterial candidate to combat microorganisms to reduce implant related infections. The successful deposition of Cu(II)–CS complex coatings on stainless steel was confirmed by physicochemical characterizations. Morphological and elemental analyses by scanning electron microscopy (SEM) and energy-dispersive X-ray (EDX) spectroscopy verified the uniform distribution of copper in the Chitosan (CS) matrix. Moreover, homogeneous coatings without precipitation of metallic copper were confirmed by X-ray diffraction (XRD) spectroscopy and SEM micrographs. Controlled swelling behavior depicted the chelation of copper with polysaccharide chains that is key to the stability of Cu(II)–CS coatings. All investigated systems exhibited stable degradation rate in phosphate buffered saline (PBS)–lysozyme solution within seven days of incubation. The coatings presented higher mechanical properties with the increase in Cu(II) concentration. The crack-free coatings showed mildly hydrophobic behavior. Antibacterial assays were performed using both Gram-positive and Gram-negative bacteria. Outstanding antibacterial properties of the coatings were confirmed. After 24 h of incubation, cell studies of coatings confirms that up to a certain threshold concentration of Cu(II) were not cytotoxic to human osteoblast-like cells. Overall, our results show that uniform and homogeneous Cu(II)–CS coatings with good antibacterial and enhanced mechanical stability could be successfully deposited by EPD. Such antibiotic-free antibacterial coatings are potential candidates for biomedical implants.

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“…As far as coating synthesis is concerned, ATR-FTIR spectroscopy is widely used to confirm coating formation on titanium [51][52][53][54][55][56][57][58]. For example, the hydroxyapatite/lignin composite coatings on titanium implants, developed by Erakovic et al, were also studied by means of ATR-FTIR.…”

Section: Attenuated Total Reflectance Fourier-transform Infrared Specmentioning

confidence: 99%

“…Most of the aforementioned works reported SEM analysis, together with the other characterizations, in order to gain insights into the morphology of titanium polymeric coatings obtained by electrochemical routes [34,51,[53][54][55][56][57][58][61][62][63]81].…”

Section: Scanning Electron Microscopy With Energy-dispersive X-ray Anmentioning

confidence: 99%

Surface Characterization of Electro-Assisted Titanium Implants: A Multi-Technique Approach

et al. 2020

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The understanding of chemical–physical, morphological, and mechanical properties of polymer coatings is a crucial preliminary step for further biological evaluation of the processes occurring on the coatings’ surface. Several studies have demonstrated how surface properties play a key role in the interactions between biomolecules (e.g., proteins, cells, extracellular matrix, and biological fluids) and titanium, such as chemical composition (investigated by means of XPS, TOF-SIMS, and ATR-FTIR), morphology (SEM–EDX), roughness (AFM), thickness (Ellipsometry), wettability (CA), solution–surface interactions (QCM-D), and mechanical features (hardness, elastic modulus, adhesion, and fatigue strength). In this review, we report an overview of the main analytical and mechanical methods commonly used to characterize polymer-based coatings deposited on titanium implants by electro-assisted techniques. A description of the relevance and shortcomings of each technique is described, in order to provide suitable information for the design and characterization of advanced coatings or for the optimization of the existing ones.

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Fabrication and characterization of electrophoretically deposited chitosan-hydroxyapatite composite coatings on anodic titanium dioxide layers

Cited by 57 publications

References 39 publications

Effect of combined chlorogenic acid and chitosan coating on antioxidant, antimicrobial, and sensory properties of snakehead fish in cold storage

Effect of combined chlorogenic acid and chitosan coating on antioxidant, antimicrobial, and sensory properties of snakehead fish in cold storage

Electrophoretic Deposition of Copper(II)–Chitosan Complexes for Antibacterial Coatings

Surface Characterization of Electro-Assisted Titanium Implants: A Multi-Technique Approach

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