Details

Project TitleSuperhydrophobicity using high aspect ratio nano-texture fractal surface roughness.
Track Code2008-012
Short DescriptionNanoengineered surfaces offer a variety of possibilities to manipulate fluid transport and enhance heat dissipation characteristics. The nanoscopic structures (nano, hierarchical structured arrays)
AbstractNanoengineered surfaces offer a variety of possibilities to manipulate fluid transport and enhance heat dissipation characteristics. The nanoscopic structures (nano, hierarchical structured arrays) can be fabricated to create superhydrophilic and superhydrophobic surfaces with unique transport properties by various techniques. The formed surfaces have unique properties for instance, adhere or release from surfaces in either wet or dry conditions or both, endure wear or resist hostile corrosive environments, manage heat transfer, manage incident light. Here, at university of Arkansas at Little Rock, We developed a cost-effective and high-throughput fabrication method using nanoscopic structure arrays at various geometries on solid substrates. This is done by preparing a surface of a substrate of a first material, modifying the surface through an etching process to generate a plurality of nucleation sites in an array; forming, by using glancing angle deposition, a plurality of nano-rods of a second material and each at a respective one of the plurality of nucleation sites in the array; and depositing a conformal coating on the plurality of nano-rods.
 
Tagsanti icing, nano, nano texture, superhydrophobic, surface roughness
 
Posted DateAug 25, 2014 6:01 PM

Researcher

Name
Ganesh Kannarpady
Alexandru Biris

Technology Applications

  • Biomedical (hospital and personal care antibacterial treatments, and anti-biofouling marine coatings).
  • Automotive (water/dirt/insect repellent, and antifrost, antifog, and antireflective  surface treatments).
  • Aviation (de-icing and aerodynamic/fuel-saving metal protection coatings).
  • In Building and Architectural Materials, self-cleaning glass and cement, and anti-glare aluminum and plastic building products.
  • Electronics—superhydrophobic waterproofing and oleophobicity for hearing aids, mobile communication devices, and nanotextured LCD panels for retail displays.
  • Energy—long shelf-life batteries, fuel cell components, HVAC heat exchanger coils, oil and gas flow equipment lubricants, oil/water separation and remediation, rigid and flexible solar panels, and wind and steam turbines.
  • Optics—anti-reflective mobile device displays, mobile device security, flat panel glass displays and nanophotonic (non-pigmented) cosmetics.
  • Textiles— waterproof building awnings

About the Lead Researchers

Dr. Alexandru S. Biris

Dr. Ganesh Kannarpady

Opportunities to Work Together

Collaboration

Licensing

Sponsored Research

Intellectual Property

Patent Number Issue Date Type Country of Filing
8337951 Dec 25, 2012 Utility United States