Biodegradable optically transparent terpinen-4-ol thin films for marine antifouling applications

Kumar, Avishek; Mills, Scott; Bazaka, Kateryna; Bajema, Nigel; Atkinson, Ian; Jacob, Mohan V.

doi:10.1016/j.surfcoat.2018.05.074

Cited by 21 publications

(16 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Terpinen-4-ol plasma polymers deposited at power of 10 W have been found to retain their inherent antimicrobial properties. Films deposited at higher power than 10 W have shown no antimicrobial properties, whereas one deposited at lower power are unstable under aqueous conditions [7,45]. A fine-tuning of plasma power, process pressure, and flow rate have been found to deposit a Terpinen-4-ol plasma polymer retaining a maximum antimicrobial property of the monomer.…”

Section: Thin Film Fabricationmentioning

confidence: 99%

“…Bacterial adhesion to material surface is the primary step in biofilm development. Biofilm formation can potentially have severe health and industrial repercussions [1,2], with examples including implant-associated infections [3,4] and marine fouling of environmental sensors, pontoons [5][6][7]. Planktonic cells of many microbial species have a tendency to form a biofilm matrix on surfaces as a means of protection against hostile environment and predation.…”

Section: Introductionmentioning

confidence: 99%

“…Terpinen-4-ol plasma polymers are a recent entry in the range of biodegradable polymer materials that show promising antimicrobial activity and have both biomedical and marine applications [7,[41][42][43]. This study investigates the effect of surface modification of terpinen-4-ol plasma polymers via in-situ hydrophilic modification via oxygen plasma treatment and ZnO nanoparticle (Np) immobilization on antibacterial activity against Escherichia coli.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

In-Situ Surface Modification of Terpinen-4-ol Plasma Polymers for Increased Antibacterial Activity

et al. 2020

Self Cite

View full text Add to dashboard Cite

Surface modification of thin films is often performed to enhance their properties. In this work, in situ modification of Terpinen-4-ol (T4) plasma polymer is carried out via simultaneous surface functionalization and nanoparticle immobilization. Terpinen-4-ol plasma polymers surface were decorated with a layer of ZnO nanoparticles in an oxygen plasma environment immediately after polymer deposition. A combination of hydrophilic modification and ZnO nanoparticle functionalization of the T4 polymer surface led to an enhancement in antibacterial properties by factor of 3 (from 0.75 to 0.25 CFU.mm−2). In addition, ZnO nanoparticle-modified coatings demonstrated improved UV absorbing characteristics in the region of 300–400 nm by 60% relative to unmodified coatings. The ZnO modified coatings were transparent in the visible region of 400–700 nm. The finding points towards the potential use of ZnO nanoparticle-modified T4 plasma polymers as optically transparent UV absorbing coatings.

show abstract

Section: Thin Film Fabricationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

In-Situ Surface Modification of Terpinen-4-ol Plasma Polymers for Increased Antibacterial Activity

et al. 2020

Self Cite

View full text Add to dashboard Cite

show abstract

“…Terpinene-4-ol was also observed to be the most active ingredient of TTO to kill Demodex mites, showing more potent than TTO at equivalent concentrations, displaying killing effects even at a mere concentration of 1% [34]. When terpinene-4-ol plasma polymer films were fabricated by PECVD, they could inhibit the early stages of biofouling and showed antifouling activity in seawater for one week, indicating that the possible mechanism of the effects was due to the dissolution of the film coupled with antimicrobial properties of terpinen-4-ol [35]. As for LEO, it contains different chemical compositions–the reported commercial LEO purchased from the manufacturer contained limonene 79.8%, β-pinene 3.6%, γ-terpinene 2.3%, geranial 2.7%, and neral 1.0% [29].…”

Section: Resultsmentioning

confidence: 99%

Essential oil-incorporated carbon nanotubes filters for bacterial removal and inactivation

2019

View full text Add to dashboard Cite

In this study, essential oils (EO)-incorporated multi-walled carbon nanotubes (MWCNTs) filters were developed for achieving dual functions in effective removing bacteria from aqueous solutions and inactivating bacteria cells captured on the filters. Tea tree essential oil (TTO), lemon essential oil (LEO), and TTO-LEO-mixture were coated on MWCNTs filters with different MWCNTs loadings ranging from 3 mg to 6 mg. MWCNTs filters with 6.0 mg MWCNTs showed complete removal (100%) of E. coli cells from PBS buffer with 6.35 log10 decrease of cell numbers. TTO, LEO, and TTO/LEO Mix (1:1) coatings at the volume of 50 μL on MWCNTs filters achieved bacterial removal rates of >98%, and highly effective inactivation efficiency. TTO coatings had the highest antimicrobial efficacies than LEO and Mix coatings, MWCNTs filters with 50 μL TTO coating showed 100% inhibitory rate of the captured bacteria on the filter surfaces. Those captured but survived cells on filters with less TTO coating (20μL) significantly reduced their salt tolerances to 30 and 40 g/L NaCl in LB agar, and became less salt tolerance with longer incubation time on the filters. The developed TTO-MWCNTs filters had much higher antimicrobial efficacies than the filters with dual functions developed previously.

show abstract

“…However, they were banned globally for the protection of the ocean environment and marine organisms due to their toxic properties. Thus, developing an effective and environmentally friendly antifouling system has been a subject of immense interest [7]. Many structures, materials, and surfaces observed in nature have inspired researchers to understand their basic principles, such as their intelligence, microminiaturization, hierarchical assembly, and adaptability.…”

Section: Introductionmentioning

confidence: 99%

Constructing a Dual-Function Surface by Microcasting and Nanospraying for Efficient Drag Reduction and Potential Antifouling Capabilities

et al. 2019

View full text Add to dashboard Cite

To improve the drag-reducing and antifouling performance of marine equipment, it is indispensable to learn from structures and materials that are found in nature. This is due to their excellent properties, such as intelligence, microminiaturization, hierarchical assembly, and adaptability. Considerable interest has arisen in fabricating surfaces with various types of biomimetic structures, which exhibit promising and synergistic performances similar to living organisms. In this study, a dual bio-inspired shark-skin and lotus-structure (BSLS) surface was developed for fabrication on commercial polyurethane (PU) polymer. Firstly, the shark-skin pattern was transferred on the PU by microcasting. Secondly, hierarchical micro- and nanostructures were introduced by spraying mesoporous silica nanospheres (MSNs). The dual biomimetic substrates were characterized by scanning electron microscopy, water contact angle characterization, antifouling, self-cleaning, and water flow impacting experiments. The results revealed that the BSLS surface exhibited dual biomimetic features. The micro- and nano-lotus-like structures were localized on a replicated shark dermal denticle. A contact angle of 147° was observed on the dual-treated surface and the contact angle hysteresis was decreased by 20% compared with that of the nontreated surface. Fluid drag was determined with shear stress measurements and a drag reduction of 36.7% was found for the biomimetic surface. With continuous impacting of high-speed water for up to 10 h, the biomimetic surface stayed superhydrophobic. Material properties such as inhibition of protein adsorption, mechanical robustness, and self-cleaning performances were evaluated, and the data indicated these behaviors were significantly improved. The mechanisms of drag reduction and self-cleaning are discussed. Our results indicate that this method is a potential strategy for efficient drag reduction and antifouling capabilities.

show abstract

Biodegradable optically transparent terpinen-4-ol thin films for marine antifouling applications

Cited by 21 publications

References 57 publications

In-Situ Surface Modification of Terpinen-4-ol Plasma Polymers for Increased Antibacterial Activity

In-Situ Surface Modification of Terpinen-4-ol Plasma Polymers for Increased Antibacterial Activity

Essential oil-incorporated carbon nanotubes filters for bacterial removal and inactivation

Constructing a Dual-Function Surface by Microcasting and Nanospraying for Efficient Drag Reduction and Potential Antifouling Capabilities

Contact Info

Product

Resources

About