Office for Technology Commercialization
http://www.research.umn.edu/techcomm
612-624-0550

Solid Contact Electrochemical Sensor

Technology #20140304

Questions about this technology? Ask a Technology Manager

Download Printable PDF

Collections
Image Gallery
Ion Selective ElectrodeElectrochemical Sensor
Categories
Researchers
Philippe Buhlmann, PhD
Professor, Chemistry, College of Science and Engineering
External Link (www.chem.umn.edu)
Andreas Stein, PhD
Professor, Chemistry, College of Science and Engineering
External Link (www.chem.umn.edu)
Managed By
Leza Besemann
Technology Portfolio Manager 612-625-8615
Patent Protection

US Patent Pending 20150338367

Low-cost Ion Selective Electrode with Solid Contact

A new type of solid-contact ion-selective electrode (ISE) introduces low-cost colloid-imprinted mesoporous (CIM) carbon material as the solid contact. The CIM carbon, which is inexpensive and easy to manufacture, acts as an intermediate layer between a gold electrode and an ionophore-doped ISE membrane. The CIM carbon’s open and interconnected pore texture offers significantly higher capacitance than current technology.

MN-IP Try and Buy
Try
  • Up to twelve month trial license
  • Fee is $10,000 for twelve months
  • Fee is waived for MN companies or if sponsoring $50,000+ research with the University
  • No US patent expenses during trial period
Buy
  • $15,000 conversion fee (TRY to BUY)
  • Royalty rate of 3% (2% for MN company)
  • Royalty free for first $1M in sales

** View the Term Sheet **
** Contact Kevin Nickels for specific details. **

Electrochemical Sensor Requires Little Calibration

The new sensor requires minimal calibration. This benefit is due to a redox couple incorporated into the ISE, yielding a standard deviation of E° as low as 0.7 mV. In addition, the CIM carbon’s high purity, hydrophobic characteristics and low number of redox-active functional groups give the ISE excellent potential stability and resistance to light, oxygen, carbon dioxide and water interference.

BENEFITS AND FEATURES OF SOLID CONTACT ELECTROCHEMICAL SENSOR:

  • Requires minimal calibration
  • Excellent resistance to interference from light, oxygen, carbon dioxide and water
  • Long-term stability and excellent reproducibility
  • Colloid-imprinted mesoporous (CIM) carbon is inexpensive and easy to manufacture
  • Open and interconnected CIM carbon pore structure leads to higher capacitance

Phase of Development - Prototype Development