Superhydrophobic Purple Orchid Leaves: Variation in Surface Morphology During the Vegetation Stages Leading to Diversity in Wettability

Lu, Longsheng; Jiang, Guosheng; Li, Kaikai; Xie, Yingxi; Gao, Jiao

doi:10.1007/s42235-023-00406-1

Cited by 1 publication

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“…In this work, based on an existing medical coating system, we propose a coupled electrode with micro/nano hierarchical structures fabricated by depositing nanoscale hafnium dioxide (HfO 2 ) coatings on bionic microstructures (BMs) (Figure ). Inspired by surface micro/nanostructures of purple orchid leaves with superhydrophobic and self-cleaning properties, − a well-designed bionic pattern is first textured on an electrode surface using a nanosecond laser (Figure S1, Supporting Information). Then, oxides on the laser-textured (LT) surface are removed by immersion in acidic solutions to obtain BMs.…”

Section: Introductionmentioning

confidence: 99%

Synergetic Effects of Nanoscale ALD–HfO₂ Coatings and Bionic Microstructures for Antiadhesive Surgical Electrodes: Improved Cutting Performance, Antibacterial Property, and Biocompatibility

Li,

Xie,

Yang

et al. 2023

ACS Appl. Mater. Interfaces

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The high temperature induced by surgical electrodes is highly susceptible to severe surface adhesion and thermal damage to adjacent tissues, which is a major challenge in improving the quality of electrosurgery. Herein, we reported a coupled electrode with micro/nano hierarchical structures fabricated by depositing nanoscale hafnium oxide (HfO 2 ) coatings on bionic microstructures (BMs) via laser texturing, acid washing, and atomic layer deposition (ALD) techniques. The synergistic effect of HfO 2 coatings and BMs greatly enhanced the hemophobicity of the electrode with a blood contact angle of 162.15 ± 3.16°. Furthermore, the coupled surface was proven to have excellent antiadhesive properties to blood when heated above 100 °C, and the underlying mechanism was discussed. Further experiments showed that the coupled electrode had significant advantages in reducing cutting forces, thermal damage, and tissue adhesion mass. Moreover, the antibacterial rates against Escherichia coli and Staphylococcus aureus were 97.2% and 97.9%, respectively. In addition, the noncytotoxicity levels of HfO 2 coatings were verified by cell apoptosis and cycle assays, indirectly endowing the coupled electrode with biocompatibility. Overall, the coupled electrode was shown to have broad potential for application in the field of electrosurgery, and this work could provide new insights into antiadhesion properties under high-temperature conditions.

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Section: Introductionmentioning

confidence: 99%

Synergetic Effects of Nanoscale ALD–HfO₂ Coatings and Bionic Microstructures for Antiadhesive Surgical Electrodes: Improved Cutting Performance, Antibacterial Property, and Biocompatibility

Li,

Xie,

Yang

et al. 2023

ACS Appl. Mater. Interfaces

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Superhydrophobic Purple Orchid Leaves: Variation in Surface Morphology During the Vegetation Stages Leading to Diversity in Wettability

Cited by 1 publication

References 36 publications

Synergetic Effects of Nanoscale ALD–HfO₂ Coatings and Bionic Microstructures for Antiadhesive Surgical Electrodes: Improved Cutting Performance, Antibacterial Property, and Biocompatibility

Synergetic Effects of Nanoscale ALD–HfO₂ Coatings and Bionic Microstructures for Antiadhesive Surgical Electrodes: Improved Cutting Performance, Antibacterial Property, and Biocompatibility

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Superhydrophobic Purple Orchid Leaves: Variation in Surface Morphology During the Vegetation Stages Leading to Diversity in Wettability

Cited by 1 publication

References 36 publications

Synergetic Effects of Nanoscale ALD–HfO2 Coatings and Bionic Microstructures for Antiadhesive Surgical Electrodes: Improved Cutting Performance, Antibacterial Property, and Biocompatibility

Synergetic Effects of Nanoscale ALD–HfO2 Coatings and Bionic Microstructures for Antiadhesive Surgical Electrodes: Improved Cutting Performance, Antibacterial Property, and Biocompatibility

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Product

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Synergetic Effects of Nanoscale ALD–HfO₂ Coatings and Bionic Microstructures for Antiadhesive Surgical Electrodes: Improved Cutting Performance, Antibacterial Property, and Biocompatibility

Synergetic Effects of Nanoscale ALD–HfO₂ Coatings and Bionic Microstructures for Antiadhesive Surgical Electrodes: Improved Cutting Performance, Antibacterial Property, and Biocompatibility