In Vitro Multi-Functional Microelectrode Array Featuring 59 760 Electrodes, 2048 Electrophysiology Channels, Stimulation, Impedance Measurement, and …

J Dragas, V Viswam, A Shadmani… - IEEE journal of solid …, 2017 - ieeexplore.ieee.org
Biological cells are characterized by highly complex phenomena and processes that are, to
a great extent, interdependent. To gain detailed insights, devices designed to study cellular …

16-channel CMOS impedance spectroscopy DNA analyzer with dual-slope multiplying ADCs

H Jafari, L Soleymani, R Genov - IEEE transactions on …, 2012 - ieeexplore.ieee.org
We present a 16-channel, mixed-signal CMOS DNA analyzer that utilizes frequency
response analysis (FRA) to extract the real and imaginary impedance components of the …

A 0.025-mm2 0.8-V 78.5-dB SNDR VCO-Based Sensor Readout Circuit in a Hybrid PLL- M Structure

W Zhao, S Li, B Xu, X Yang, X Tang… - IEEE Journal of Solid …, 2019 - ieeexplore.ieee.org
This article presents a capacitively coupled voltage-controlled oscillator (VCO)-based
sensor readout featuring a hybrid phase-locked loop (PLL)-ΔΣ modulator structure. It …

CMOS neurotransmitter microarray: 96-channel integrated potentiostat with on-die microsensors

MH Nazari, H Mazhab-Jafari, L Leng… - IEEE transactions on …, 2012 - ieeexplore.ieee.org
A 8 \,*\, 12 array of integrated potentiostats for on-CMOS neurotransmitter imaging is
presented. Each potentiostat channel measures bidirectional redox currents proportional to …

Chopper-stabilized bidirectional current acquisition circuits for electrochemical amperometric biosensors

HM Jafari, R Genov - … Transactions on Circuits and Systems I …, 2013 - ieeexplore.ieee.org
Two low-noise bidirectional current acquisition circuits for interfacing with electrochemical
amperometric biosensor arrays are presented. The first design is a switched-capacitor …

Neurochemostat: A neural interface SoC with integrated chemometrics for closed-loop regulation of brain dopamine

B Bozorgzadeh, DR Schuweiler… - IEEE transactions on …, 2015 - ieeexplore.ieee.org
This paper presents a 3.3*3.2{\rmmm^2 system-on-chip (SoC) fabricated in AMS 0.35 μ\rmm
2P/4M CMOS for closed-loop regulation of brain dopamine. The SoC uniquely integrates …

30 pJ/b, 67 Mbps, centimeter-to-meter range data telemetry with an IR-UWB wireless link

A Ebrazeh, P Mohseni - IEEE transactions on biomedical …, 2014 - ieeexplore.ieee.org
This paper reports an energy-efficient, impulse radio ultra wideband (IR-UWB) wireless link
operating in 3-5 GHz for data telemetry over centimeter-to-meter range distances at rates …

Nanostructured CMOS wireless ultra-wideband label-free PCR-free DNA analysis SoC

HM Jafari, K Abdelhalim, L Soleymani… - IEEE Journal of Solid …, 2014 - ieeexplore.ieee.org
A fully integrated 54-channel wireless fast-scan cyclic voltammetry DNA analysis SoC is
presented. The microsystem includes 546 3D nanostructured and 54 2D gold DNA sensing …

A 200-channel area-power-efficient chemical and electrical dual-mode acquisition IC for the study of neurodegenerative diseases

J Guo, W Ng, J Yuan, S Li… - IEEE transactions on …, 2015 - ieeexplore.ieee.org
Microelectrode array (MEA) can be used in the study of neurodegenerative diseases by
monitoring the chemical neurotransmitter release and the electrical potential simultaneously …

A 19 μW, 50 kS/s, 0.008-400 V/s cyclic voltammetry readout interface with a current feedback loop and on-chip pattern generation

SY Lu, YT Liao - IEEE Transactions on Biomedical Circuits and …, 2021 - ieeexplore.ieee.org
A cyclic voltammetry electrochemical sensing chip was implemented with a time-based
readout circuit and a current feedback control loop for wide-range and high-linearity current …