A robust, room-temperature curable and molecular-level superhydrophobic coating with excellent antibacterial and antifouling properties

Zhao, Yue; Teng, Xu; Hu, Ji-Ming

doi:10.1016/j.cej.2022.136557

Cited by 16 publications

(12 citation statements)

References 70 publications

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“…Superhydrophobic materials are one class of novel materials with special wettability, which are utilized extensively in many areas of basic and applied research. Recent advances have demonstrated that air layers can be trapped in the liquid–solid interfaces of superhydrophobic materials, which can decrease the contact area between superhydrophobic materials and liquid to show excellent water repellency. − Because of their special wettability, these materials are promising for self-cleaning, , oil/water separation, , corrosion resistance, ,, biological techniques, − and anti-icing. , Among various functional superhydrophobic coatings, luminescent superhydrophobic coatings have generated particular interest and developed rapidly. They have widespread applications in sunlight conversion of agriculture, − anticounterfeiting technologies, , bioimaging , and optoelectronic devices. , Xu et al prepared a fluorinated polypyrene/silica hybrid superhydrophobic film, one-step electrochemical polymerization created rough structures, and strong fluorescence .…”

Section: Introductionmentioning

confidence: 99%

Multifunctional Integrated Superhydrophobic Coatings with Unique Fluorescence and Micro/Micro/Nano-Hierarchical Structures Enabled by In Situ Self-Assembly

Shi

Wang

Meng

et al. 2023

ACS Appl. Mater. Interfaces

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Conferring versatility to superhydrophobic materials is extremely desirable to advance their utility. Herein, we have developed a superhydrophobic material with montmorillonite as microskeleton supports and in situ grown ZIF-8 nanoparticles and loaded them with newly developed fluorescent carbon dots. In situ growth of the ZIF-8 on OMMT constructs a dense nanoscale rough structure and meanwhile self-assembly generates abundant microporous, thus forming unique hierarchical microporous/microsheet/nanoparticle tri-tier micro and nano structures. Then the multifunctional superhydrophobic coating is fabricated by a facile spraying technique using polydimethylsiloxane (PDMS) as a multifunctional polymer binder. The PDMS/RB-CDs/ZIF-8@OMMT exhibits superhydrophobicity with a water contact angle of 164.7° and a water sliding angle of 1.4°, which also possesses good self-cleaning performance. Moreover, novel carbon dots are developed in this work which can confer unique fluorescent properties and photothermal properties to materials. Fluorescence characterization reveals the multiple emission peaks among 300–800 nm and excitation wavelength dependence and independence. Photothermal experiments unveil an efficient light-to-heat conversion caused by the light traps and absorption wavelengths associated with photothermal heating. Benefiting from the dense microporous/microsheet/nanoparticle structures, the superhydrophobicity is still maintained after 120 cycles of abrasion. Moreover, electrochemical impedance spectroscopy (EIS) reveals a significant increase in impedance, which is associated with excellent corrosion resistance. The superhydrophobic coating also exhibits superior UV resistance and good thermal stability. Multifunctional fluorescent superhydrophobic materials will enable the development of various and potential applications in different fields.

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Section: Introductionmentioning

confidence: 99%

Multifunctional Integrated Superhydrophobic Coatings with Unique Fluorescence and Micro/Micro/Nano-Hierarchical Structures Enabled by In Situ Self-Assembly

Shi

Wang

Meng

et al. 2023

ACS Appl. Mater. Interfaces

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“…The use of the poisonous and expensive organic conventional agents like fluorocarbons and triclosan to cure textiles has been shown to have significant drawbacks. [6,7] Textiles have been usually endowed with a singular functional attribute through the use of a singular finishing process. As a consequence, the fabric undergoes many finishing processes to impart multifunctional features, requiring more resources and time to complete.…”

Section: Introductionmentioning

confidence: 99%

An anticounterfeiting strategy based on photochromic nonwoven polyester fabric by plasma‐assisting spray coating with ultraviolet‐responsive silica@strontium aluminate nanoparticles

Al‐Ahmed

Alzahrani

AlJohani

et al. 2023

Applied Organom Chemis

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Photochromism is an interesting method to enhance the anticounterfeiting activity of commercial products. Polyester fibers have been significant polymers for a variety of applications; however, they have been known to resist staining due to the absence of reactive dyeing site on their fibrous surface. Herein, we present recycled nonwoven polyester immobilized with rare‐earth activated aluminate nanoparticles for anticounterfeiting applications. Using the heterogeneous precipitation method, the lanthanide‐doped aluminate pigment was firstly coated with silica to give phosphor‐encapsulated within silica nanoparticles (Silica@Phosphor). The produced Silica@Phosphor particles were mixed with an adhesive binder in an aqueous medium, which was then spray‐coated directly onto plasma‐pretreated nonwoven polyester fabric. The fibrous composite demonstrated ultraviolet‐induced photochromism. Both phosphor and Silica@Phosphor morphologies demonstrated particle diameter of 4–12 and 90–105 nm, respectively. Various techniques were utilized to examine both morphologies and compositions of the photochromic nonwoven fabrics. The antibacterial activity, cytotoxicity, comfortability, colorfastness, and ultraviolet shielding of the prepared polyesters immobilized with Silica@Phosphor were also reported. The luminescent fabrics demonstrated two emission wavelengths at 435 and 514 nm (green) upon excitation at 369 nm (colorless). The nonwoven fabrics showed an enhanced superhydrophobicity as an improved contact angle up to 129.9° was detected upon increasing the Silica@Phosphor ratio.

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“…Although fluorocarbon chain was a common choice, superhydrophobic surfaces were also formed with other means. In a study done by Zhao et al [ 15 ], aminated polydimethyl siloxane was used with epoxy resin and was cured with isocyanate crosslinker where a bacterial reduction against E. coli at 79% was observed with modified samples. In another study, Han et al [ 16 ] studied silicone dioxide (SiO 2 ) and titanium dioxide (TiO 2 ) NPs deposited on a surface which was pre-modified with mussels’ adhesive protein, and the modified material showed excellent anti-biofouling properties.…”

Section: Introductionmentioning

confidence: 99%

Can Superhydrophobic PET Surfaces Prevent Bacterial Adhesion?

et al. 2023

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Prevention of bacterial adhesion is a way to reduce and/or avoid biofilm formation, thus restraining its associated infections. The development of repellent anti-adhesive surfaces, such as superhydrophobic surfaces, can be a strategy to avoid bacterial adhesion. In this study, a polyethylene terephthalate (PET) film was modified by in situ growth of silica nanoparticles (NPs) to create a rough surface. The surface was further modified with fluorinated carbon chains to increase its hydrophobicity. The modified PET surfaces presented a pronounced superhydrophobic character, showing a water contact angle of 156° and a roughness of 104 nm (a considerable increase comparing with the 69° and 4.8 nm obtained for the untreated PET). Scanning Electron Microscopy was used to evaluate the modified surfaces morphology, further confirming its successful modification with nanoparticles. Additionally, a bacterial adhesion assay using an Escherichia coli expressing YadA, an adhesive protein from Yersinia so-called Yersinia adhesin A, was used to assess the anti-adhesive potential of the modified PET. Contrarily to what was expected, adhesion of E. coli YadA was found to increase on the modified PET surfaces, exhibiting a clear preference for the crevices. This study highlights the role of material micro topography as an important attribute when considering bacterial adhesion.

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A robust, room-temperature curable and molecular-level superhydrophobic coating with excellent antibacterial and antifouling properties

Cited by 16 publications

References 70 publications

Multifunctional Integrated Superhydrophobic Coatings with Unique Fluorescence and Micro/Micro/Nano-Hierarchical Structures Enabled by In Situ Self-Assembly

Multifunctional Integrated Superhydrophobic Coatings with Unique Fluorescence and Micro/Micro/Nano-Hierarchical Structures Enabled by In Situ Self-Assembly

An anticounterfeiting strategy based on photochromic nonwoven polyester fabric by plasma‐assisting spray coating with ultraviolet‐responsive silica@strontium aluminate nanoparticles

Can Superhydrophobic PET Surfaces Prevent Bacterial Adhesion?

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