biosensor-components

Electrochemical Biosensor Components

Conductive Technologies (CTI) offers a wide range of approved component materials validated for delivering the highest precision possible with our manufacturing processes. We also work closely with customers to accommodate requests to utilize supplied materials when possible.

Substrates

All substrates are processed only in sheet form to maintain tight print-to-print and print-to-feature tolerances. Large substrates may be printed with images up to 23″ x 31″ (584 mm x 787 mm). The CTI experts prefer to use standard materials validated for our printing processes, but we will carefully evaluate customer-supplied for compatibility to our processes whenever possible. Preferred substrates include:

Material Color Thickness
Polyester Clear or White 0.005″ – 0.010″
(0.13 mm – 0.25 mm)
Polycarbonate Clear or White 0.005″ – 0.020″
(0.13 mm – 0.51 mm)
Polystyrene Clear 0.015″ – 0.070″
(0.38 mm – 1.79 mm)

 

Conductive inks:

  • Carbon
  • Carbon/silver blend
  • Silver
  • Silver/silver chloride
  • Metals and metallized carbons including silver (Ag), gold (Au), and platinum (Pt)
  • UV-cured and thermally-cured dielectric
  • Specialty materials including pressure-sensitive and UV-cured adhesives

CTI will utilize inks specified by the customer for their application. In cases where conductive inks are not specified, we will provide recommendations.

Metal films

Sputtered metal films are available from several sources and available in gold (Au), silver (Ag), titanium (Ti), palladium (Pd), platinum (Pt), and copper (Cu) formats. The required metal film thickness is dependent upon the needs of the application but typically range from 40 to 150 nm.

Reagents

CTI offers capabilities for printing or depositing reagents onto printed elements integral to electrochemical sensor applications. We incorporate client-supplied reagents through micro-deposition from a positive-displacement pump or into inks for silk-screen printing. Reagent processes are conducted in environmentally controlled rooms for applications requiring high or low humidity. Our reagent inks are cured in low-temperature ovens to preserve the integrity of these sensitive materials. CTI’s chemists aid customers with reagent formulation, components, and mixture ratios to maximize the performance their electrochemical device.