A comparison of vegetable leaves and replicated biomimetic surfaces on the binding of Escherichia coli and Listeria monocytogenes

Gomes, Luciana C.; Saubade, Fabien; Amin, Moshin; Spall, Joshua; Liauw, Christopher M.; Mergulhão, Filipe; Whitehead, Kathryn A.

doi:10.1016/j.fbp.2022.11.003

Cited by 6 publications

(9 citation statements)

References 58 publications

(81 reference statements)

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“…Here we used a 5% cellulose acetate (CA) solution to replicate the surface structure of leek leaves. Leek plant shows anisotropic superhydrophobicity, and very recently, prevention of bacterial binding was shown 97 by mimicking its surface structure onto dental wax. The replicated CA lms were then coated with carnauba wax (CW), the hardest natural wax with the highest melting point among commercial vegetable waxes (≈ 84°C) 98 .…”

Section: Resultsmentioning

confidence: 99%

From Kitchen Garden to Multifunctionality: Leek-inspired Surface Structures Introduce Optical and Self-cleaning Properties to Cellulose-based Films

Vapaavuori,

Shirazi,

Mirmohammadi

et al. 2023

Preprint

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A bioinspired approach to produce all-biobased films with high anisotropic light scattering and superhydrophobicity is presented as a route toward sustainable light management layers for photovoltaics. The multifunctional films are achieved by replicating leek leaves onto cellulose acetate, producing hierarchical surface structures. The free-standing films show a transmittance of ≈ 94% and a haze of ≈ 54% at the wavelength of 550 nm. Inspired by leek’s epicuticular wax, surface hydrophobicity was achieved through tailoring carnauba wax coatings. The surfaces show anisotropic advancing contact angles of up to 160° and 156° in cross directions, due to the periodical surface roughness and low-surface-energy carnauba wax secondary features. Using the replica as the light management layer on perovskite solar cells improved the power conversion efficiency by 6 ± 0.3%. Meanwhile, the surface water repellency facilitates self-cleaning, which tackles dirt accumulation, ensures maximum incident light, and maintains photovoltaic performance over time. Hence the developed films are suitable candidates as organic light management layers for improving the lifetime and efficiency of solar cells and other optoelectronics. Furthermore, the method can be potentially employed to fabricate substrates from virtually any leaf or patterned surface as the initial replication template.

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Section: Resultsmentioning

confidence: 99%

From Kitchen Garden to Multifunctionality: Leek-inspired Surface Structures Introduce Optical and Self-cleaning Properties to Cellulose-based Films

Vapaavuori,

Shirazi,

Mirmohammadi

et al. 2023

Preprint

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“…Biomimetic surfaces were synthesized using CF and WC leaves as models since they present self-cleaning properties [ 31 ]. Fresh CF and WC vegetables, daily delivered in the market, were purchased and used within a 4-h time period on the same day.…”

Section: Methodsmentioning

confidence: 99%

“…Based on the understanding that bacterial adhesion is influenced by surface energy, roughness, and wettability [ 29 , 30 ], biomimetic surfaces intend to replicate these attributes, reproducing topographies from nature to change bacteria-surface interactions and reduce fouling [ 26 ]. The application of biomimetic surfaces to control bacterial adhesion on food contact surfaces has already been reported [ 28 , 31 ]. McClements et al [ 28 ] demonstrated that replica gladioli leaf surfaces were effective in reducing E. coli and L. monocytogenes attachment, adhesion, and retention.…”

Section: Introductionmentioning

confidence: 99%

“…McClements et al [ 28 ] demonstrated that replica gladioli leaf surfaces were effective in reducing E. coli and L. monocytogenes attachment, adhesion, and retention. Additionally, in a previous study, Gomes et al [ 31 ] revealed that the cauliflower and white cabbage biomimetic surfaces were promising in decreasing the adhesion and retention of E. coli and L. monocytogenes cells.…”

Section: Introductionmentioning

confidence: 99%

“…botrytis (cauliflower, CF) and Brassica oleracea capitate (white cabbage, WC) leaves by wax moulding, and characterize their topographic and physicochemical properties. These plant leaves were selected based on their ability to repel water droplets [ 31 ] and because they are available all year around. Additionally, the antibiofilm performance of the synthesized surfaces was evaluated against single- and dual-species biofilms of E. coli and Pseudomonas putida .…”

Section: Introductionmentioning

confidence: 99%

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The use of biomimetic surfaces to reduce single- and dual-species biofilms of Escherichia coli and Pseudomonas putida

Teixeira-Santos,

Azevedo,

Romeu

et al. 2024

Biofilm

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Anisotropic Superhydrophobic Properties Replicated from Leek Leaves

Mirmohammadi,

Shirazi,

Heikkilä

et al. 2024

Small

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A bio‐inspired approach to fabricate robust superhydrophobic (SHB) surfaces with anisotropic properties replicated from a leek leaf is presented. The polydimethylsiloxane (PDMS) replica surfaces exhibit anisotropic wetting, anti‐icing, and light scattering properties due to microgrooves replicated from leek leaves. Superhydrophobicity is achieved by a novel modified candle soot (CS) coating that mimics leek's epicuticular wax. The resulting surfaces show a contact angle (CA) difference of ≈30° in the directions perpendicular and parallel to the grooves, which is similar to the anisotropic properties of the original leek leaf. The coated replica is durable, withstanding cyclic bending tests (up to 10 000 cycles) and mechanical sand abrasion (up to 60 g of sand). The coated replica shows low ice adhesion (10 kPa) after the first cycle; and then, increases to ≈70 kPa after ten icing–shearing cycles; while, anisotropy in ice adhesion becomes more evident with more cycles. In addition, the candle soot‐coated positive replica (CS‐coated PR) demonstrates a transmittance of ≈73% and a haze of ≈65% at the wavelength of 550 nm. The results show that the properties depend on the replicated surface features of the leek leaf, which means that the leek leaf appears to be a highly useful template for bioinspired surfaces.

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A comparison of vegetable leaves and replicated biomimetic surfaces on the binding of Escherichia coli and Listeria monocytogenes

Cited by 6 publications

References 58 publications

From Kitchen Garden to Multifunctionality: Leek-inspired Surface Structures Introduce Optical and Self-cleaning Properties to Cellulose-based Films

From Kitchen Garden to Multifunctionality: Leek-inspired Surface Structures Introduce Optical and Self-cleaning Properties to Cellulose-based Films

The use of biomimetic surfaces to reduce single- and dual-species biofilms of Escherichia coli and Pseudomonas putida

Anisotropic Superhydrophobic Properties Replicated from Leek Leaves

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