Programming nanostructured soft biological surfaces by atomic layer deposition.
Nanotechnology
; 24(24): 245701, 2013 Jun 21.
Article
in En
| MEDLINE
| ID: mdl-23680967
ABSTRACT
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 TiO2 thin films. The lotus/TiO2 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.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Nanotechnology
/
Nanostructures
Language:
En
Journal:
Nanotechnology
Year:
2013
Document type:
Article
Affiliation country:
Finland