Marine Antifouling Surface Coatings Using Tannic Acid and Poly(<i>N</i>‐vinylpyrrolidone)

Kim, Suyeob; Jeong, Yeonwoo; Kang, Sung Min

doi:10.1002/bkcs.10687

Cited by 7 publications

(5 citation statements)

References 31 publications

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“…The subsequent nucleation and growth of Ag NPs, as well as the surface chelation of TA, lead to the formation of TA–Ag NP nanocomposites. Since the trihydroxyphenyl and dihydroxyphenyl groups in TA can interact with a wide variety of substrates by chemical bonds and physical interactions, − the TA–Ag NPs are deposited simultaneously on the surface in a substrate-independent manner (Scheme ).…”

Section: Introductionmentioning

confidence: 99%

UV-Assisted Deposition of Antibacterial Ag–Tannic Acid Nanocomposite Coating

Gopinath

Sathishkumar

et al. 2021

ACS Appl. Mater. Interfaces

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The marked increase in bacterial colonization of medical devices and multiple drug resistance to traditional antibiotics underline the pressing need for developing novel antibacterial surface coatings. In the present investigation, natural polyphenol tannic acid (TA)-capped silver nanoparticles (TA–Ag NPs) were synthesized via an environmentally friendly and sustainable one-step redox reaction under UV irradiation with a simultaneous and uniform deposition on polydimethylsiloxane (PDMS) and other substrate surfaces. In the synthesis process, the dihydroxyphenyl and trihydroxyphenyl groups of TA actively participate in Ag+ reduction, forming co-ordination linkages with Ag NPs and bestowing the deposition on the PDMS surface. The physico-chemical features of TA–Ag NPs were characterized in detail. Microscopic examination, surface elemental analysis, and wettability measurements clearly reveal the decoration of TA–Ag NPs on the substrate surfaces. The modified PDMS surfaces can kill the adhered bacteria or resist the bacterial adhesion, and no live bacteria can be found on their surfaces. Most importantly, the modified PDMS surfaces exhibit predominant antibacterial effects both in vitro in the catheter bridge model and in vivo in a rat subcutaneous infection model. On the other hand, the functionalized surfaces exhibit only a negligible level of cytotoxicity against L929 mouse fibroblasts with no side effects on the major organs of Sprague–Dawley rats after implantation, indicating their biocompatibility for potential biomedical applications.

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Section: Introductionmentioning

confidence: 99%

UV-Assisted Deposition of Antibacterial Ag–Tannic Acid Nanocomposite Coating

Gopinath

Sathishkumar

et al. 2021

ACS Appl. Mater. Interfaces

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“…The cross-sectional SEM image in the inset demonstrates that the layer was uniform in thickness (7.8 μm on average). Furthermore, delamination of the coating layer was not observed, indicating its good binding to the substrate, as a result of the substrate-independent surface anchoring capabilities of TA (imparted by the dihydroxyphenyl and trihydroxyphenyl groups present in the molecule) [ 24 , 25 , 26 ].…”

Section: Resultsmentioning

confidence: 99%

New Autonomous Water-Enabled Self-Healing Coating Material with Antibacterial-Agent-Releasing Properties

et al. 2022

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A new autonomous water-enabled self-healing coating with antibacterial-agent-releasing capability was developed for the first time by precipitating an aqueous solution of hydrogen-bonded tannic acid (TA) and polyethylene glycol (PEG) (TA: 5 mg/mL; PEG: 5 mg/mL with MW = 100 kDa) to form a smooth, uniform coating layer with an average roughness of 0.688 nm and thickness of 22.3 μm on a polymethyl methacrylate (PMMA) substrate after 10 min of incubation. Our method is cost- and time-efficient, as the hydrophilic coating (water contact angle = 65.1°) forms rapidly, binding strongly to the PMMA substrate (adhesive energy = 83 mJ/m2), without the need for pretreatment or surface modification, and is capable of rapid self-repair (approximately 5 min) through hydrogen bonding in aqueous media. Furthermore, adding 0.5 mg/mL of chlorhexidine acetate (CHX), a commonly used antibacterial agent in dentistry, into the TA–PEG emulsion allowed the release of 2.89 μg/mL of the drug from the coating layer, which is promising for actively inhibiting the vitality and growth of bacteria around PMMA dental restorations. The use of CHX-loaded TA–PEG hydrogen-bonded complexes is highly favorable for the fabrication of an autonomous self-healing biocoating with active antibacterial-agent-releasing capability, which can be applied not only in dentistry but also in other medical fields.

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“…Virtually all material objects, especially marine vessels and underwater constructions, are susceptible to biofouling 2–4 . An antifouling coating can downplay the friction and resource wastage caused by biofouling 5–9 . Up to date, a coating cannot suppress the biofouling of a surface completely 10,11 .…”

Section: Introductionmentioning

confidence: 99%

Stimulated reversal of the strong adhesion of catechol onto a silica surface

Ilyas

Mian

Rauf

et al. 2021

Bulletin Korean Chem Soc

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Marine mussels permanently adhere to various surfaces via catechol (1,2‐dihydroxybenzene) functional groups. Such biofouling causes adverse effects, including the corrosion and dragging of a marine vessel. By using the density functional theory, we show an electrical stimulus detach a catechol molecule that strongly adhered to a silica surface. A moderate electric field significantly decreases the binding energy of catechol adhered to a dry or wet silica surface.

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Marine Antifouling Surface Coatings Using Tannic Acid and Poly(N‐vinylpyrrolidone)

Cited by 7 publications

References 31 publications

UV-Assisted Deposition of Antibacterial Ag–Tannic Acid Nanocomposite Coating

UV-Assisted Deposition of Antibacterial Ag–Tannic Acid Nanocomposite Coating

New Autonomous Water-Enabled Self-Healing Coating Material with Antibacterial-Agent-Releasing Properties

Stimulated reversal of the strong adhesion of catechol onto a silica surface

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