PMID- 20698521
OWN - NLM
STAT- MEDLINE
DCOM- 20101227
LR  - 20131121
IS  - 1520-5827 (Electronic)
IS  - 0743-7463 (Linking)
VI  - 26
IP  - 17
DP  - 2010 Sep 7
TI  - Stable biomimetic superhydrophobic surfaces fabricated by polymer replication 
      method from hierarchically structured surfaces of Al templates.
PG  - 14103-10
LID - 10.1021/la102057p [doi]
AB  - We have developed a simple, efficient, and highly reproducible method to 
      fabricate the large-area biomimetic superhydrophobic polymer surfaces having 
      hierarchical structures of micrometer-sized irregular steps and nanometer-sized 
      fibrils. Commercial Al plates (99.0%) were etched using Beck's dislocation 
      etchant (mixture of HCl and HF) for different time periods in order to alter the 
      structure of the etched Al surfaces from micrometer-sized to highly rough 
      nanometer-sized irregular steps. These hierarchical structures could be easily 
      replicated onto the surface of various thermoplastic polymer plates from the 
      etched Al templates by applying heat and pressure; many polymer replicas without 
      any significant deviations from each other could be duplicated from the same 
      etched Al master templates. All of thermoplastic polymer replicas having 
      hierarchical structures exhibited superhydrophobic properties with water contact 
      angles of larger than 150 degrees. Especially, the surfaces of the high-density 
      polyethylene (HDPE) replicas having nanometer-sized curled strands exhibited 
      superhydrophobicity with a static water contact angle of approximately 160 
      degrees and a sliding angle of less than 2 degrees. These superhydrophobic HDPE 
      replicas having nanometer-sized curled strands showed excellent stability after 
      being exposed to various organic solvents and aqueous solutions of various pH.
FAU - Lee, Yuwon
AU  - Lee Y
AD  - Department of Chemistry, Seoul National University, Seoul 151-747, Korea.
FAU - Ju, Kuk-Youn
AU  - Ju KY
FAU - Lee, Jin-Kyu
AU  - Lee JK
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - United States
TA  - Langmuir
JT  - Langmuir : the ACS journal of surfaces and colloids
JID - 9882736
RN  - 0 (Polymers)
RN  - CPD4NFA903 (Aluminum)
SB  - IM
MH  - Aluminum/*chemistry
MH  - Biomimetic Materials/*chemistry
MH  - Hydrogen-Ion Concentration
MH  - Hydrophobic and Hydrophilic Interactions
MH  - Molecular Structure
MH  - Particle Size
MH  - Polymers/*chemistry
MH  - Surface Properties
EDAT- 2010/08/12 06:00
MHDA- 2010/12/28 06:00
CRDT- 2010/08/12 06:00
PHST- 2010/08/12 06:00 [entrez]
PHST- 2010/08/12 06:00 [pubmed]
PHST- 2010/12/28 06:00 [medline]
AID - 10.1021/la102057p [doi]
PST - ppublish
SO  - Langmuir. 2010 Sep 7;26(17):14103-10. doi: 10.1021/la102057p.