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Programming nanostructured soft biological surfaces by atomic layer deposition

机译:通过原子层沉积对纳米结构的软生物表面进行编程

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Here, we present the first successful attempt to programme the surface properties of nanostructured soft biological tissues by atomic layer deposition (ALD). The nanopatterned surface of lotus leaf was tuned by 3-125 nm TiO _2 thin films. The lotus/TiO_2 composites were studied by SEM-EDX, XPS, Raman, TG-DTA, XRR, water contact angle and photocatalysis measurements. While we could preserve the superhydrophobic feature of lotus, we managed to add a new property, i.e. photocatalytic activity. We also explored how surface passivation treatments and various ALD precursors affect the stability of the sensitive soft biological tissues. As we were able to gradually change the number of nanopatterns of lotus, we gained new insight into how the hollow organic nanotubes on the surface of lotus influence its superhydrophobic feature.
机译:在这里,我们提出了通过原子层沉积(ALD)对纳米结构的软生物组织的表面性能进行编程的首次成功尝试。通过3-125 nm TiO _2薄膜对荷叶的纳米图案表面进行了调谐。通过SEM-EDX,XPS,拉曼,TG-DTA,XRR,水接触角和光催化测量研究了Lotus / TiO_2复合材料。虽然我们可以保留莲花的超疏水特性,但我们设法增加了新的特性,即光催化活性。我们还探讨了表面钝化处理和各种ALD前体如何影响敏感的软生物组织的稳定性。随着我们能够逐渐改变莲花的纳米图案数量,我们获得了关于莲花表面上的空心有机纳米管如何影响其超疏水特性的新见解。

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