Cyclic voltammetry readout circuitry for DNA biosensor application

Cyclic Voltammetry

Cyclic Voltammetry of Auranofin

The oxidative behavior of Auranofin, 2,3,4,6-tetra-O-acetyl-1-thio-beta-D-glucopyranosato- S(triethylphosphine)gold(I), was investigated by using cyclic voltammetry (CV) in 0.1 M Bu(4)NPF(6)/CH(2)Cl(2) and 0.1 M Bu(4)NPF(4)/CH(2)Cl(2) solutions using Pt working and auxiliary electrodes and a Ag/AgCI reference. CV studies at scan rates from 50-2,000 mV/s and Auranofin concentrations between 1 an...

Microfabricated mechanical biosensor with inherently differential readout

We report measurements with a micromachined mechanical biosensor that inherently suppresses background effects by producing a differential signal with respect to a reference. The sensor comprises two adjacent cantilevers with interdigitated fingers between them that allow interferometric detection of the differential, i.e., relative bending. We demonstrate that differential detection can effici...

DVCC based Readout Circuitry for Water Quality Monitoring System

A new configuration realizing water quality monitoring device using ISFET involving CMOS differential voltage current conveyor (DVCC) based low pass filter free from trans-conductance variation using Low-voltage PMOS bulkdriven cascade current mirror (P MOS BDCCM) current mirrors is proposed. The circuit uses four DVCCs as active elements and together with two capacitors and five resistors as p...

A Readout Chip for Miniaturized in Vivo Biosensor Implant

This work presents a programmable read-out chip for a miniaturized multi-parameter in vivo biosensor implant. The chip stimulates the measurement electrodes and reads out the generated analog signals in order to carry out temperature, pH and oxygen measurements. The design process aims at the optimization of the chip programmability and energy efficiency so as to make it suitable for implantabl...