Micromolded Carbon Paste Microelectrodes for Electrogenerated Chemiluminescent Detection on Microfluidic Devices

Electrogenerated chemiluminescent determination of oxalate.

Immobilization and Hybridization of DNA on an Aluminum(II1) Alkanebisphosphonate Thin Film with Electrogenerated Chemiluminescent Detection

Immobilization of single-stranded (ss) DNA on an electrode covered with an aluminum alkanebisphosphonate film by immersion in an ss-DNA solution was demonstrated with ss-DNA labeled with R~(bpy)3~+. This was detected by observing the electrogenerated chemiluminescence (ECL) produced upon oxidation in a solutior containing trin-propylamine. Surface hybridization was shown by immobilization of un...

Electrochemical Detection in Microfluidic Devices

Screen-printing was used to incorporate electrodes into a channel of a microfluidic device. These enabled, through the electrochemical oxidation of hydrogen peroxide, the determination of glucose which had been added to milk pre-treated by ultrafiltration. Screen-printing is a relatively simple, inexpensive technique and its use to add electrochemical detection to microfluidic devices is a step...

Engineering Carbon Nanotube Microdrops Using Microfluidic Devices

Since the discovery of carbon nanotubes (CNTs) by Sumio Iijima in 1991 [1], they have been of great interest to the nanotechnology community. In this work, we explored microfluidic drop generators to fabricate CNT microdrops with a controlled geometry and fast throughput. On the one hand, CNT microdrops were assembled using CNTs water suspensions in oil. On the other hand, we explored the fabri...

Simultaneous detection of single attoliter droplet collisions by electrochemical and electrogenerated chemiluminescent responses.

We provide evidence of single attoliter oil droplet collisions at the surface of an ultra-microelectrode (UME) by the observation of simultaneous electrochemical current transients (i-t curves) and electrogenerated chemiluminescent (ECL) transients in an oil/water emulsion. An emulsion system based on droplets of toluene and tri-n-propylamine (2:1 v/v) emulsified with an ionic liquid and suspen...