Bioinspired Hierarchical Surface Structures with Tunable Wettability for Regulating Bacteria Adhesion

Dou, Xiaoqiu; Zhang, Di; Feng, Chuanliang; Jiang, Lei

doi:10.1021/acsnano.5b04231

Cited by 243 publications

(178 citation statements)

References 65 publications

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“…Dou et al [186] recreated the topology of the rose petal using different polymer mixtures, and reported that the greatest adhesion of Gram-positive bacteria occurred at an intermediate hydrophobicity. Sousa et al [187] showed that bacteria grew better on superhydrophobic PLLA substrates when incubated with S. aureus or P. aeruginosa for 24 hours compared to flat PLLA surfaces (2-log reduction).…”

Section: Bacterial Interactionsmentioning

confidence: 99%

Superhydrophobic materials for biomedical applications

et al. 2016

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Superhydrophobic surfaces are actively studied across a wide range of applications and industries, and are now finding increased use in the biomedical arena as substrates to control protein adsorption, cellular interaction, and bacterial growth, as well as platforms for drug delivery devices and for diagnostic tools. The commonality in the design of these materials is to create a stable or metastable air state at the material surface, which lends itself to a number of unique properties. These activities are catalyzing the development of new materials, applications, and fabrication techniques, as well as collaborations across material science, chemistry, engineering, and medicine given the interdisciplinary nature of this work. The review begins with a discussion of superhydrophobicity, and then explores biomedical applications that are utilizing superhydrophobicity in depth including material selection characteristics, in vitro performance, and in vivo performance. General trends are offered for each application in addition to discussion of conflicting data in the literature, and the review concludes with the authors’ future perspectives on the utility of superhydrophobic surfaces for biomedical applications.

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Section: Bacterial Interactionsmentioning

confidence: 99%

Superhydrophobic materials for biomedical applications

et al. 2016

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“…Lubricant‐infused liquid‐repellency slippery surfaces possess outstanding antifouling properties that prevent adhesion of proteins, bacteria, cells, and marine organisms . Thus, liquid‐repelling surfaces have wide ranging applications in various fields such as textiles, water collection, corrosion control, chemical shielding, and environmental protection .…”

Section: Applicationsmentioning

confidence: 99%

Bioinspired Superwettability Micro/Nanoarchitectures: Fabrications and Applications

Kong

Luo

Zhao

et al. 2019

Adv Funct Materials

151

104

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Biological systems have evolved over billions of years to develop wetting strategies for advantageous structure-property-performance relations that are crucial for their survival. The discovery of these intriguing relationships has inspired tremendous efforts to investigate the micro/nanoscale features of naturally occurring structures with superwettability. Researchers have since developed new methods and techniques to construct artificial materials that mimic natural structures and functionalities. Here, a brief review of natural hierarchical architectures with liquid repellent properties is presented, and the critical underlying mechanism is summarized with an emphasis on the micro/nanoscopic architectures. The state-of-the-art micro/nanofabrication techniques for creating bioinspired hierarchical superwettability structures that are categorized by random and exquisite features are also reviewed, followed by an overview of their emerging applications, with special attention to biomedical-related fields. The development of fabrication techniques enhances capabilities relative to those of living systems, paving the way toward advanced structural materials with superior functions and unprecedented characteristics for potential applications. Figure 1. Natural superwettable surfaces. Scanning electronic microscopy (SEM) images demonstrate the surface micro/nanostructures of a) lotus leaf, [4] b) Salvinia molesta, [115] c) cicada wings, [109] d) mosquito eye, [37] e) cactus spines, [110] f) desert beetle, [2] g) water strider, [5] h) springtail skin, [145] and i) pitcher plant. [50] The examples represent a range of different intelligent surfaces that exist in nature. Reproduced with permission. [4]

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“…1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 as well as their effects on the microorganism structure and activity can be tailored by tuning their physicochemical characteristics. 10 In the case of bacteria and enveloped viruses, their lipid membrane constitutes an excellent target for deactivation since it is readily accessible.…”

Section: -8mentioning

confidence: 99%

Functionalized Surfaces with Tailored Wettability Determine Influenza A Infectivity

Mannelli

Reigada²,

Suarez

et al. 2016

ACS Appl. Mater. Interfaces

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Surfaces contaminated with pathogenic microorganisms contribute to their transmission and spreading. The development of "active surfaces" that can reduce or eliminate this contamination necessitates a detailed understanding of the molecular mechanisms of interactions between the surfaces and the microorganisms. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 shown that, among the different surface characteristics, the wetting properties play an important role in reducing virus infectivity. Here, we systematically tailored the wetting characteristics of flat and nanostructured glass surfaces by functionalizing them with alkyl-and fluoro-silanes. We studied the effects of these functionalized surfaces on the infectivity of Influenza A viruses using a number of experimental and computational methods including real-time fluorescence microscopy and molecular dynamics simulations. Overall, we show that surfaces that are simultaneously hydrophobic and oleophilic are more efficient in deactivating enveloped viruses. Our results suggest that the deactivation mechanism likely involves disruption of the viral membrane upon its contact with the alkyl chains. Moreover, enhancing these specific wetting characteristics by surface nanostructuring led to an increased deactivation of viruses. These combined features make these substrates highly promising for applications in hospitals and similar infrastructures where antiviral surfaces can be crucial.

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Bioinspired Hierarchical Surface Structures with Tunable Wettability for Regulating Bacteria Adhesion

Cited by 243 publications

References 65 publications

Superhydrophobic materials for biomedical applications

Superhydrophobic materials for biomedical applications

Bioinspired Superwettability Micro/Nanoarchitectures: Fabrications and Applications

Functionalized Surfaces with Tailored Wettability Determine Influenza A Infectivity

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