Scholarlink

<p>Bioinspired coatings have significantly contributed to combating microbial contamination involving fungi, bacteria, and viruses. Building on these advancements, we propose a new approach using additive manufacturing (AM) techniques through high-resolution 3D printing (MSLA) to develop chemically active–passive printable hybrid material. We explored a bioinspired design based on the micropapillae found on the inner surface of the <i>Huernia penzigii</i> flower, aiming to tune the wettability of the surfaces as a function of the aspect ratio of the printed bioinspired microstructures. This creates a hydrophilic regime that induces contaminated droplets to approach and interact with the active surface, which is based on a photocurable copper nanocomposite. This printable material was characterized using FTIR, UV-Vis, XRD, SEM analyses, and contact angle measurements. Through a proof of concept, we were able to establish a correlation between the contact angle and the size ratio of bioinspired micropapillae from <i>H. penzigii</i>. For micropapillae tuned to a height of 400&#xa0;µm, we observed the contact angle reduce to 38°, indicating that the tuning of the contact angle in the bioinspired active–passive hybrid structure may be a good strategy to induce more significant droplet interaction to enhance the antiviral activity of the surfaces and combating contamination through fomites.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Hierarchical anti-fomite coatings based on bioinspiration in 3D-printed Dragon Flower microstructures with copper nanocomposites

  • 期刊论文

  • 发表日期：

    2025年8月25日

查看全文
  • Tamires da Silva Lima,
  • Anderson Gomes Vieira,
  • Lays de Araújo Makiyama,
  • Alisson Silva de Albuquerque,
  • Petrus Santa-Cruz

摘要

Bioinspired coatings have significantly contributed to combating microbial contamination involving fungi, bacteria, and viruses. Building on these advancements, we propose a new approach using additive manufacturing (AM) techniques through high-resolution 3D printing (MSLA) to develop chemically active–passive printable hybrid material. We explored a bioinspired design based on the micropapillae found on the inner surface of the Huernia penzigii flower, aiming to tune the wettability of the surfaces as a function of the aspect ratio of the printed bioinspired microstructures. This creates a hydrophilic regime that induces contaminated droplets to approach and interact with the active surface, which is based on a photocurable copper nanocomposite. This printable material was characterized using FTIR, UV-Vis, XRD, SEM analyses, and contact angle measurements. Through a proof of concept, we were able to establish a correlation between the contact angle and the size ratio of bioinspired micropapillae from H. penzigii. For micropapillae tuned to a height of 400 µm, we observed the contact angle reduce to 38°, indicating that the tuning of the contact angle in the bioinspired active–passive hybrid structure may be a good strategy to induce more significant droplet interaction to enhance the antiviral activity of the surfaces and combating contamination through fomites.