Abstract
We have fabricated an interdigitated double-coil microelectrode chip for the determination of traces of phosphate by making use of a MEMS technique and enzyme immobilization technology. The chip is composed of two 3-dimensional strip microelectrodes which form a double coil microelectrode configuration with steep sidewalls and high aspect ratio. This novel configuration results in a high current response during amplification by redox cycling. The enzyme pyruvate oxidase was immobilized on the chip using gold nanoparticles as a support. Phosphate can be determined by using this chip with good sensitivity and linearity and in concentrations ranging from 0.5 μM to 7 μM.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
