BioInkSense™ C140 Ultra-Low Background Carbon Conductive Ink

BioInkSense™ C140 Ultra-Low Background Carbon Conductive Ink

Price range: $99.00 through $2,899.00

High-performance screen-printable carbon conductive ink engineered for ultra-low background current, exceptional electrochemical sensitivity, and outstanding signal-to-noise ratio in electrochemical biosensors, analytical sensors, and disposable diagnostic devices.

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Description

Description

BioInkSense™ C140 Ultra-Low Background Carbon Conductive Ink

BioInkSense™ C140 is a premium screen-printable carbon conductive ink engineered for fabrication of high-sensitivity electrochemical biosensors, disposable diagnostic devices, analytical sensors, and research-grade printed electrodes. The formulation is specifically optimized to minimize background current while maximizing electrochemical signal quality, enabling improved analytical sensitivity, lower limits of detection, and superior analytical precision.

The optimized carbon composition provides excellent electrical conductivity, outstanding electrochemical stability, minimal capacitive charging current, and highly reproducible electrode performance. The carefully engineered microstructure minimizes non-Faradaic current while maintaining rapid electron transfer kinetics, making C140 particularly suitable for trace biomarker detection, immunosensors, enzyme biosensors, nucleic acid sensors, wearable diagnostics, and advanced point-of-care testing platforms.

The formulation is optimized for fabrication of working electrodes used in amperometric, voltammetric, potentiometric, and electrochemical impedance sensors.

Technical Specifications

Property Typical Value
Ink chemistry Ultra-pure graphite/carbon composite
Printing method Screen printing
Mesh compatibility 230–420 mesh
Recommended emulsion thickness 10–20 μm
Wet film thickness 12–25 μm
Cured film thickness 5–12 μm
Recommended curing temperature 90–120°C
Recommended curing time 10–20 min
Solid content 68–78 wt%
Viscosity (25°C) 9,000–20,000 cP
Particle size (D90) <8 μm
Density 1.3–1.6 g/cm³
Shelf life 12 months
Storage temperature 4–25°C

Electrical Performance

Parameter Typical Value
Sheet resistance <12 Ω/sq @ 10 μm cured film*
Volume resistivity <0.012 Ω·cm*
Batch-to-batch conductivity variation <3%
Print-to-print reproducibility CV <2%
Contact resistance variation <3%
Adhesion ASTM D3359 Class 5B
Electrical stability >98% conductivity retained after 2,000 bending cycles

*Measured under recommended printing and curing conditions.

Electrochemical Performance

Parameter Typical Value
Electrochemical window −0.7 to +1.1 V (vs Ag/AgCl)
Peak-to-peak separation (5 mM Fe(CN)₆³⁻/⁴⁻, 100 mV/s) <70 mV
Background current <0.20 μA/cm²
Electrode-to-electrode reproducibility CV <3%
Signal stability >99% after 200 continuous measurements
Compatible techniques CV, DPV, SWV, CA, EIS, OCP

Mechanical Performance

Parameter Typical Value
Minimum bending radius <4 mm
Flexibility Excellent
Tape adhesion ASTM D3359 Class 5B
Abrasion resistance High
Chemical compatibility PBS, serum, saliva, sweat, urine, aqueous buffers

Compatible Substrates

  • Polyethylene terephthalate (PET)
  • Polyester
  • Polycarbonate
  • Polyimide
  • Paper
  • Flexible polymer films
  • Surface-treated plastics

Manufacturing Compatibility

  • Manual screen printing
  • Semi-automatic screen printing
  • Fully automatic screen printing
  • Roll-to-roll manufacturing
  • Sheet-fed production

Typical Applications

  • High-sensitivity electrochemical biosensors
  • Immunosensors
  • DNA and RNA biosensors
  • Enzyme biosensors
  • Point-of-care diagnostics
  • Wearable biosensors
  • Clinical diagnostics
  • Environmental monitoring
  • Food safety testing
  • Research and analytical electrochemistry

Quality Assurance

Each production batch undergoes comprehensive quality control including rheological characterization, electrical conductivity testing, electrochemical performance verification, background current measurement, electron-transfer characterization, adhesion testing, printability assessment, visual inspection, and batch-to-batch reproducibility analysis.

Available Documents

  • Technical Data Sheet (TDS)
  • Safety Data Sheet (SDS)
  • Printing Guide
  • Storage and Handling Guide
  • Certificate of Analysis (available upon request)

Ordering

Select the desired package size and quantity from the purchase options above. Product pricing and availability are updated automatically based on the selected package size.

Additional information

gram

10 g, 25 g, 50 g, 100 g, 250 g, 500 g

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