Long-lasting anti-bacterial face masks enabled by combining anti-bacterial materials and superhydrophobic coating

Tian, Ning; Xu, Delei; Wei, Jinfei; Li, Bucheng; Zhang, Junping

doi:10.1016/j.surfcoat.2023.130229

Cited by 13 publications

(3 citation statements)

References 38 publications

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“…Zhang et al developed a SiO 2 and ZnOnanoparticle-based coating on polypropylene fabric with the help of perfluoro decyl siloxane as a hydrophobic polymer. 18 Although the material is superhydrophobic, the composite exhibited only a 110-fold reduction in bacterial colony growth with respect to only the polypropylene fabric. They used fluorinated polymers to achieve the hydrophobic nature, but it was already established that fluorinated compounds are not biofriendly.…”

Section: ■ Introductionmentioning

confidence: 98%

Superhydrophobic Metal–Organic Framework-Based Composite Featuring Removal of Hydrophobic Drugs and Pesticides and Antibacterial Activities

Rana,

Ghosh,

Patel

et al. 2024

Inorg. Chem.

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The widespread use and contamination of natural sources by new-generation drugs and pesticides have enhanced concern about environmental pollution. Understanding the above importance, we developed a superhydrophobic metal−organic framework (MOF) (SHMOF′: [Zr 6 O 4 (OH) 4 (BDC-NH−CO-R) 2.4 (BDC-NH 2 ) 0.6 (CF 3 COO) 6 ]•2.5H 2 O•4DMF) for ecological remediation via adsorption-based separation of hydrophobic drugs (flurbiprofen) and pesticides (fluazinam). The newly developed SHMOF′ has a high adsorption capacity toward flurbiprofen and fluazinam, i.e., 435 and 575 mg/g, respectively. The adsorption equilibrium time of the MOF is very short (15 and 10 min for flurbiprofen and fluazinam, respectively). The outstanding superhydrophobic nature of the MOF was employed to separate flurbiprofen and fluazinam from highly alkaline and acidic media and environmental water samples. The SHMOF′ has excellent selectivity toward the adsorption-based separation of flurbiprofen and fluazinam in the coexistence of common analytes. Again, we developed a polypropylene (PP) fabric-based composite of SHMOF′ (SHMOF′@PP) to separate the hydrophobic targeted analytes by using a zero-energy-consuming filtration-based separation method, which made this separation process cost-efficient and user-friendly. Moreover, Ag nanoparticles were doped to the superhydrophobic composite. The Ag-doped reusable SHMOF′@PP@ Ag composite exhibited excellent bacterial antiadhesion and antibacterial properties toward Staphylococcus aureus bacteria.

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Section: ■ Introductionmentioning

confidence: 98%

Superhydrophobic Metal–Organic Framework-Based Composite Featuring Removal of Hydrophobic Drugs and Pesticides and Antibacterial Activities

Rana,

Ghosh,

Patel

et al. 2024

Inorg. Chem.

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“…A superhydrophobic non-metallic surface refers to surfaces engineered to exhibit an extremely high water contact angle (WCA, θ) with no less than 150 • through surface modification techniques [1]; these surfaces play an indispensable role in our daily life and can be found in applications across diverse sectors of daily necessities, architecture, healthcare, textiles, transportation and environmental conservation [2][3][4][5][6][7][8][9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Superhydrophobic Non-Metallic Surfaces with Multiscale Nano/Micro-Structure: Fabrication and Application

Guo,

Ma,

Yin

et al. 2024

Molecules

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Multiscale nano/micro-structured surfaces with superhydrophobicity are abundantly observed in nature such as lotus leaves, rose petals and butterfly wings, where microstructures typically reinforce mechanical stability, while nanostructures predominantly govern wettability. To emulate such hierarchical structures in nature, various methods have been widely applied in the past few decades to the manufacture of multiscale structures which can be applied to functionalities ranging from anti-icing and water–oil separation to self-cleaning. In this review, we highlight recent advances in nano/micro-structured superhydrophobic surfaces, with particular focus on non-metallic materials as they are widely used in daily life due to their lightweight, abrasion resistance and ease of processing properties. This review is organized into three sections. First, fabrication methods of multiscale hierarchical structures are introduced with their strengths and weaknesses. Second, four main application areas of anti-icing, water–oil separation, anti-fog and self-cleaning are overviewed by assessing how and why multiscale structures need to be incorporated to carry out their performances. Finally, future directions and challenges for nano/micro-structured surfaces are presented.

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“…Superhydrophobic materials are those with a water contact angle (WCA) of more than 150° and a roll angle of less than 10°, while superhydrophilic materials are those with a WCA of less than 5°. Currently, superwettable materials have been widely used in various fields such as self-cleaning, − anti-icing, − antimicrobial, − oil–water separation, − etc.…”

Section: Introductionmentioning

confidence: 99%

Internal Superwettability Inversion of a COF-Encapsulated Melamine Sponge Prepared by a One-Step Synthesis at Room Temperature

Li,

Wang,

et al. 2024

Langmuir

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Superwettable materials have been attracting attention due to their unique properties, showing great application prospects in a variety of fields including oil−water separation. Herein, a kind of covalent organic framework (COF)-encapsulated melamine sponge (MS) capable of internal superwettability inversion is prepared by a one-step synthesis at room temperature. COF is produced in situ on the skeleton of MS, which is favorable for practical application, and the prepared COF-encapsulated sponge (MS@COF) exhibits superhydrophobicity (water contact angle of about 157.0°) due to the rough surface provided by the micro/ nanostructure of COF. More importantly, MS@COF displays reversibly superhydrophilicity by simple prewetting, achieving superwettability inversion conveniently, unlike the previous switchable materials that rely on external conditions. This facile intrinsic superwettability inversion greatly enriches the application prospects of this kind of smart sponge.

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Long-lasting anti-bacterial face masks enabled by combining anti-bacterial materials and superhydrophobic coating

Cited by 13 publications

References 38 publications

Superhydrophobic Metal–Organic Framework-Based Composite Featuring Removal of Hydrophobic Drugs and Pesticides and Antibacterial Activities

Superhydrophobic Metal–Organic Framework-Based Composite Featuring Removal of Hydrophobic Drugs and Pesticides and Antibacterial Activities

Superhydrophobic Non-Metallic Surfaces with Multiscale Nano/Micro-Structure: Fabrication and Application

Internal Superwettability Inversion of a COF-Encapsulated Melamine Sponge Prepared by a One-Step Synthesis at Room Temperature

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