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Catherine Dehollain

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Publications associées (140)

Modeling and performance investigation of insulin injection pen for diabetic persons

Catherine Dehollain, Maria-Alexandra Paun

This paper is focused on modeling and performance investigation of insulin injection pens used by diabetic persons. A smart pen cap with two electrodes is used as a capacitive sensor for insulin dose detection and is presented in details. To faithfully ana ...

IEEE2019

Optical pancreatic beta cell based biosensor, applications and glucose monitoring

Catherine Dehollain, Nicolas Bouche, Christophe Boss, Umberto De Marchi, Bakul Jitendra Vinchhi

An optical pancreatic beta-cell based biosensor for measuring cytosolic [Ca2+] is presented in this work. An in vitro bio-electronic system is built for testing various applications and characterizing features of the biosensor. A panoply of applications su ...

IEEE2019

Modeling Dielectric Constant Variability in Aggregate Polymers from CV Measurements

Marco Mattavelli, Jean-Michel Sallese, Catherine Dehollain, Diego Ruben Barrettino

Recently a new technique based on capacitive sensing has been developed and used to estimate the amount of moisture in polymers by means of the deviation of the dielectric constant. This technique is expected to be used for in-line monitoring of aggregate ...

IEEE2019

Pancreatic beta cell based optical biosensor and system for continuous glucose monitoring

Catherine Dehollain, Nicolas Bouche, Christophe Boss, Umberto De Marchi, Bakul Jitendra Vinchhi, Ninad Dilip Agashe

A bio-electronics system that measures cytosolic [Ca2+] in vitro in the INS-1E pancreatic beta-cells using a 430 nm excitation light with the excitation wavelength of the probe being at 435 nm was successfully implemented and tested. We transfected the INS ...

IEEE2019

An RF Wireless Power Transfer system to power battery-free devices for asset tracking

Catherine Dehollain, Roberto La Rosa

Internet of Things (IoT) and Wireless Sensor Networks (WSN) infrastructures are becoming more and more available and diffused. One major outcome is the development of new services that help to make everyday life easier and better. One of those to which thi ...

IEEE2019

Adaptive Learning-Based Compressive Sampling for Low-power Wireless Implants

Catherine Dehollain, Yusuf Leblebici, Volkan Cevher, Mahsa Shoaran, Gürkan Yilmaz, Franco Maloberti, Cosimo Aprile, Kerim Türe, Luca Baldassarre

Implantable systems are nowadays being used to interface the human brain with external devices, in order to understand and potentially treat neurological disorders. The most predominant design constraints are the system’s area and power. In this paper, we ...

2018

TIA Linearity Analysis for Current Mode Receivers

Catherine Dehollain

Current-mode signal processing offers superior linearity and flexibility in front-end implementation. The linearity of a low-input-impedance Trans-Impedance Amplifier (TIA), which is used as a buffer stage that follows a passive mixer, is important in dete ...

IEEE2018

Design and Modelling of a Super-Regenerative Receiver for Medical Implant Devices

Catherine Dehollain, Naci Pekçokgüler

Medical implant devices have been widely used in recent years. The Super-Regenerative Receiver has been on preferred architecture due to its power advantage over other architectures. We present a detailed analysis of the circuits and their equivalent model ...

IEEE2018

All Wireless, 16-channel Epilepsy Control System with Sub-mu W/channel and Closed-loop Stimulation Using a Switched-Capacitor-Based Active Charge Balancing Method

Catherine Dehollain, Alexandre Schmid, Franco Maloberti, Kerim Türe, Reza Ranjandish

An all wireless closed-loop stimulation system for epilepsy control is presented that generates charged-balanced programmable stimulation current pulses upon a seizure is detected. The proposed system has highly flexible stimulation parameters thanks to th ...

IEEE2018

Area and Power Efficient Ultra-Wideband Transmitter Based on Active Inductor

Catherine Dehollain, Franco Maloberti, Kerim Türe, Arnout Jan J Devos

This paper presents the design of an impulse radio ultra-wideband (IR-UWB) transmitter for low-power, short-range, and high-data rate applications such as high density neural recording interfaces. The IR-UWB transmitter pulses are generated by modulating t ...

2018

Modeling of a capacitive sensor dedicated to drug injection

Catherine Dehollain

to follow up patients who inject themselves insulin with injection pen is a quite complex task. Due to the repetition of injections, and the numerous influent parameter the patient can easily made an injection mistake and it is difficult for health-takers ...

IEEE2018

Pediatric Size Swallowable Glass Pill for Digestive Motility Analysis

Vincent Schlageter, Catherine Dehollain, Onur Kazanç

A glass pill for digestive motility tracking with wireless communication is presented. The pill encapsulates three magnetic transmitter coils with a 125 kHz signal, the circuitry required to control the magnetic coil output and the battery. The system prov ...

IEEE2018

High Precision Capacitive Moisture Sensor for Polymers

Marco Mattavelli, Jean-Michel Sallese, Catherine Dehollain, Diego Ruben Barrettino

This paper presents a high precision capacitive moisture sensor for polymers that is part of a compact, fast, and economic moisture analyzer capable of reaching similar precision than commercial moisture analyzers based on the Karl Fischer method. The desi ...

IEEE2018

Remotely-Powered Front-End at 2.45 GHz for Real-Time Continuous Temperature Sensing

Catherine Dehollain, Onur Kazanç, Franco Maloberti

Remote powering and power management of a passive sensor system employing antenna-rectifier co-design is presented. The operating frequency of the system is chosen at 2.45 GHz in order to reduce the antenna size. A co-design approach enables the coupling o ...

IEEE2018

A 30 mu W Remotely Powered Local Temperature Monitoring Implantable System

Catherine Dehollain

An implantable local temperature monitoring system for a laboratory mouse is presented. Magnetic coupling is used to remotely power the passive implant. The temperatures of two local points are monitored by thermistors. A low-power readout circuit is imple ...

Ieee-Inst Electrical Electronics Engineers Inc2017

System for active skull replacement for brain interface and method of using the same

Catherine Dehollain, Kanber Mithat Silay, Gürkan Yilmaz

An active skull replacement system including an implant having an area A, an upper surface, and a bottom surface, adapted to be implanted at least in part into a skull of a subject so to substitute a portion of the skull, the bottom surface arranged to fac ...

2017

Power/data platform for high data rate in implanted neural monitoring system

Catherine Dehollain, Alexandre Schmid, Gürkan Yilmaz, Franco Maloberti, Kerim Türe, Reza Ranjandish

IEEE2017

Optimization of the Data Rate of an OOK CMOS Medical Transmitter Based on LC Oscillators

Catherine Dehollain, Gürkan Yilmaz, Franco Maloberti, Kerim Türe

This paper presents techniques for increasing communication data rates for OOK modulated signals in the case the carrier frequency is generated by a cross-coupled pair LC oscillator. The proposed circuitry completely turns off the transmitter during the tr ...

Ieee2016

In-Vivo Validation of Fully Implantable Multi-Panel Devices for Remote Monitoring of Metabolism

Catherine Dehollain, Giovanni De Micheli, Andrea Cavallini, Sandro Carrara, Enver Gürhan Kilinç, Camilla Baj-Rossi, Francesca Stradolini

This paper presents the in-vivo tests on a Fully Implantable Multi-Panel Devices for Remote Monitoring of endogenous and exogenous analytes. To investigate issues on biocompatibility, three different covers have been designed, realized and tested in ...

Ieee-Inst Electrical Electronics Engineers Inc2016

20-300 MHz Frequency Generator with-70 dBc Reference Spur for Low Jitter Serial Applications

Catherine Dehollain, Gürkan Yilmaz

This paper presents a frequency synthesizer based on a phase locked loop (PLL) targeting low jitter applications. The frequency generator covers a range wider than a decade, more explicitly from 20 to 300 MHz. Thanks to a 4-stage ring oscillator, it can pr ...

Ieee2016

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