Skip to Content
Merck
  • Extremely durable biofouling-resistant metallic surfaces based on electrodeposited nanoporous tungstite films on steel.

Extremely durable biofouling-resistant metallic surfaces based on electrodeposited nanoporous tungstite films on steel.

Nature communications (2015-10-21)
Alexander B Tesler, Philseok Kim, Stefan Kolle, Caitlin Howell, Onye Ahanotu, Joanna Aizenberg
ABSTRACT

Formation of unwanted deposits on steels during their interaction with liquids is an inherent problem that often leads to corrosion, biofouling and results in reduction in durability and function. Here we report a new route to form anti-fouling steel surfaces by electrodeposition of nanoporous tungsten oxide (TO) films. TO-modified steels are as mechanically durable as bare steel and highly tolerant to compressive and tensile stresses due to chemical bonding to the substrate and island-like morphology. When inherently superhydrophilic TO coatings are converted to superhydrophobic, they remain non-wetting even after impingement with yttria-stabilized-zirconia particles, or exposure to ultraviolet light and extreme temperatures. Upon lubrication, these surfaces display omniphobicity against highly contaminating media retaining hitherto unseen mechanical durability. To illustrate the applicability of such a durable coating in biofouling conditions, we modified naval construction steels and surgical instruments and demonstrated significantly reduced marine algal film adhesion, Escherichia coli attachment and blood staining.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Acetone, suitable for HPLC, ≥99.9%
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
Zirconium(IV) oxide-yttria stabilized, submicron powder, 99.9% trace metals basis (purity excludes ~2% HfO2)
SKU
Pack Size
Availability
Price
Quantity
Supelco
Ethanol solution, certified reference material, 2000 μg/mL in methanol
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
Acetone, natural, ≥97%
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
Zirconium(IV) oxide-yttria stabilized, nanopowder
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
Acetone, ≥99%, meets FCC analytical specifications
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
Acetone, ACS reagent, ≥99.5%
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
Acetone, Laboratory Reagent, ≥99.5%
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
Acetone, puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99.5% (GC)
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
Acetone, histological grade, ≥99.5%
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
Acetone, ACS reagent, ≥99.5%
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
Acetone, puriss., meets analytical specification of Ph. Eur., BP, NF, ≥99% (GC)
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
Sodium tungstate dihydrate, 99.995% trace metals basis
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
Ethyl alcohol, Pure, 200 proof, anhydrous, ≥99.5%
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
Zirconium(IV) oxide-yttria stabilized, <100 nm particle size
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
Ethyl alcohol, Pure, 200 proof, ACS reagent, ≥99.5%
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
Ethanol, puriss. p.a., absolute, ≥99.8% (GC)
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
Ethyl alcohol, Pure, 200 proof, meets USP testing specifications
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
Sodium tungstate dihydrate, ACS reagent, ≥99%
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
Ethyl alcohol, Pure, 200 proof, HPLC/spectrophotometric grade
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
Ethanol, purum, fine spirit, denaturated with 4.8% methanol, F25 METHYL1, ~96% (based on denaturant-free substance)
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
Ethanol, ACS reagent, prima fine spirit, without additive, F15 o1
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
Ethanol, purum, absolute ethanol, denaturated with 2% 2-butanone, A15 MEK1, ≥99.8% (based on denaturant-free substance)
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
Ethyl alcohol, Pure, 190 proof, ACS spectrophotometric grade, 95.0%
SKU
Pack Size
Availability
Price
Quantity
Supelco
Ethanol standards 10% (v/v), 10 % (v/v) in H2O, analytical standard
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
Sodium tungstate dihydrate, BioUltra, ≥99.0% (T)
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
Ethyl alcohol, Pure, 200 proof, for molecular biology
SKU
Pack Size
Availability
Price
Quantity