Influence of the EPD route and surface preparation of titanium substrates on the microstructure, surface topography and usage properties of chitosan coatings incorporated in Tea Tree Oil and Terpinen-4-ol

Mielczarek, Mikołaj; Marchewka, Jakub; Łukaszczyk, Alicja; Sitarz, Maciej; Cieniek, Łukasz; Dziadek, Kinga; Drożdż, Kamil; Biegun, Katarzyna; Gosiewski, Tomasz; Brzychczy-Włoch, Monika; Moskalewicz, Tomasz

doi:10.1016/j.apsusc.2024.159626

Cited by 1 publication

(4 citation statements)

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“…There are no S peaks on the steel alloy within the control medium (i.e., without bacterial cells), while reduced peak intensities were recorded in the presence of the test polymer. Comparative corrosion protective performances of different antimicrobial chitosan systems for various orthopedic metal alloys from recent literature ,− and those reported within the present study are presented in Table .…”

Section: Resultsmentioning

confidence: 77%

“…Chitosan derivatives are widely reported as antimicrobials for metallic dental implants in oral health, especially against bacterial biofilms from P. gingivalis cells that cause periodontitis. , The computed values of corrosion inhibition efficiency (%η) increased with CTBC concentration and for CTBC than the CS polymer. About 99% inhibition efficiency was recorded for steel exposed to the salivary test culture with bacterial cells after 14 days at either 100 or 500 ppm of CTBC.…”

Section: Resultsmentioning

confidence: 99%

“…In a recent survey, Anggani et al 17 investigated the efficacy of a new chitosan gel utilized against infections associated with three oral bacteria, including a Gram-negative anaerobe Porphyromonas gingivalis (P. gingivalis), during oral treatments involving 30 subjects with orthodontic mini-implants In other studies, chitosan hydrogel 18 and chitosan-based nanofibers 19 and nanoparticles 8 were used in target-specific designs for delivering metronidazole, astaxanthin, and doxycycline, respectively, to prevent P. gingivalis proliferation. Whether in drug delivery, 8,17 −19 antibacterial photodynamic therapy, 20,21 or bactericidal studies, 22 or in demonstrating the use of functional chitosan coatings to protect metallic implant materials, 23 chitosan derivatives have been widely used as antibacterial substrates against oral diseases, e.g., periodontal disease. With other pathogens potentially involved in peri-implantitis and periodontitis, the complexity of surrounding bacterial biofilms becomes a significant challenge.…”

Section: Introductionmentioning

confidence: 99%

“…gingivalis proliferation. Whether in drug delivery, ,− antibacterial photodynamic therapy, , or bactericidal studies, or in demonstrating the use of functional chitosan coatings to protect metallic implant materials, chitosan derivatives have been widely used as antibacterial substrates against oral diseases, e.g., periodontal disease. With other pathogens potentially involved in peri-implantitis and periodontitis, the complexity of surrounding bacterial biofilms becomes a significant challenge.…”

Section: Introductionmentioning

confidence: 99%

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Thiazolium-Bearing Chitosan Polymer Mitigates Microbiologically and Acid-Induced Corrosion on Stainless Steel Dental Crowns and Pipeline Steel in Saliva and Pickle Liquor

Eduok,

Ohaeri,

Szpunar

2024

ACS Appl. Eng. Mater.

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Microbiologically and chemically induced corrosion episodes degrade metal alloys, weaken their mechanical strengths, and lead to loss of constituent contents when these alloys interact with their surrounding environments. While metallic dental materials (e.g., stainless steel dental crowns) are highly susceptible to pitting corrosion induced by bacterial (e.g., Porphyromonas gingivalis) biofilms within the oral cavity, pipeline steels can also significantly corrode in their service environments (e.g., during surface pickling or product transportation). Due to toxicity concerns, using safe and environmentally sustainable corrosion inhibitors has become a protective strategy for most metal alloys in place of chromates. The present study introduces a cationic thiazolium-bearing chitosan (CTBC) derivative utilized as an antimicrobial and inhibitor against microbiologically and acid-induced corrosion of coarse-grained 316L stainless-steel dental material and fine-grained ×70 pipeline steel, respectively. Due to the thiazolium-bearing moiety, this water-soluble chitosan polymer, with its unique antimicrobial activity against P. gingivalis, an oral Gram-negative pathogenic anaerobe, demonstrated an impressive level of enhanced biocorrosion inhibition for stainless steel dental material in saliva. Importantly, this polymer also significantly protected against ×70 pipeline steel corrosion compared to normal chitosan in pickle liquor. This instills confidence and sparks optimism about its potential applications in protecting metal alloys. Lower magnitudes of corrosion current density (j corr ) were recorded for crown and pipeline materials in salivary culture and pickle liquor containing 100 ppm of CTBC relative to chitosan at equimolar concentration. A reverse trend was recorded for charge transfer resistance (R ct ); higher R ct values denote polymer adsorption on pipeline steel. Over 90% corrosion inhibition efficiency was recorded for stainless steel substrates exposed to the salivary test culture with growing bacterial cells and ×70 steel substrates in the pickle liquor with 500 ppm of CTBC.

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