Publications by Ioulia Tzouvadaki

New Approach for Making Standard the Development of Biosensing Devices by a Modular Multi-Purpose Design

Sandro Carrara, Ioulia Tzouvadaki, Francesca Stradolini, Abuduwaili Tuoheti, Danilo Demarchi, Francesca Criscuolo, Simone Aiassa

The fast widening of biosensing applications, such as healthcare, drug delivery, food, and military industries, is increasing the need for generality and compatibility among different sensors. To address this challenge, we present here an innovative approa ...

2020

Multi-panel, on-single-chip Memristive Biosensing

Giovanni De Micheli, Sandro Carrara, Ioulia Tzouvadaki, Abuduwaili Tuoheti, Danilo Demarchi

Memristive biosensors have demonstrated excellent capabilities for ultrasensitive bio-detection. In the present work, memristive biosensing chips are designed, fabricated and implemented in a for the first time presented multi-panel on-chip detection for d ...

2019

Memristive Biosensors based on Full-size Antibodies and Antibody Fragments

Giovanni De Micheli, Sandro Carrara, Ioulia Tzouvadaki, Sébastien Naus

For the first time memristive biosensors developed by the incorporation of scAbs (single-chain antibody fragments) enabling label-free detection of free Prostate Specific Antigen (fPSA) for early-stage detection of prostate cancer (PC) are reported. In add ...

2019

Performance of Carbon Nano-Scale Allotropes in Detecting Midazolam and Paracetamol in Undiluted Human Serum

Giovanni De Micheli, Sandro Carrara, Irene Taurino, Nima Aliakbarinodehi, Ioulia Tzouvadaki, Francesca Stradolini, Sattar Akbari Nakhjavani

Nano-materials are highly exploited to enhance sensing performance of electrochemical electrodes by increasing the Electro-Active Surface Area (EASA). In this work, an analytical calculation of the deposited EASA is presented and experimentally validated b ...

2018

Portable Memristive Biosensing System as Effective Point-of-Care Device for Cancer Diagnostics

Giovanni De Micheli, Sandro Carrara, Ioulia Tzouvadaki, Abuduwaili Tuoheti, Danilo Demarchi

Memristive biosensors have been proved as excellent candidates for ultrasensitive biosensing. In this work, a novel portable bio-detection system based on memristive biosensors is designed, developed and tested for providing a significantly fast, automatic ...

IEEE2018

Graphene nanowalls for high-performance chemotherapeutic drug sensing and anti-fouling properties

Giovanni De Micheli, Sandro Carrara, Nima Aliakbarinodehi, Ioulia Tzouvadaki

Improved sensitivity and continuous monitoring of therapeutic compounds are two of the most highlighted concerns for the treatment of malignant diseases, such as cancer. We demonstrated ultrasensitive screening of etoposide, a therapeutic compound widely-u ...

2018

Nanoscale Sensors for Ultrasensitive Label-free Detection of Cancer Biomarkers and Monitoring of Therapeutic Compounds

Ioulia Tzouvadaki

Prostate cancer is a life-threatening malignant disease, one the most common cancer types in men and leading cause of death among men because of cancer. Considering the state of the art for the diagnosis of prostate cancer a man overall has to suffer uncom ...

EPFL2017

The memristive effect as a novelty in drug monitoring

Giovanni De Micheli, Sandro Carrara, Nima Aliakbarinodehi, Ioulia Tzouvadaki

Nanoscale devices exhibiting memristive properties show great potential in a plethora of applications. In this work, memristive nanowires are presented for the first time as ideal candidates for absolutely novel, ultrasensitive, highly specific and selecti ...

2017

Memristive Aptasensors for Theranostics

Giovanni De Micheli, Sandro Carrara, Nima Aliakbarinodehi, Ioulia Tzouvadaki

A new application in the nano-biosensing field gives proof that the coupling of nanofabricated wires exhibiting mem- ristive electrical characteristics and DNA-aptamers, may provide definitely innovative nano-bio-sensors for ultrasensitive label-free detec ...

2017

An Efficient Electronic Measurement Interface for Memristive Biosensors

Giovanni De Micheli, Sandro Carrara, Pierre-Emmanuel Julien Marc Gaillardon, Ioulia Tzouvadaki, Armando Biscontini, Sébastien Naus

Reducing sensing time is one major concern in clinical diagnostics. In the present work, a robust measurement system is developed aiming at the faster and easier signal acquisition of memristive biosensors. Sensing chips consisting of nanofabricated silico ...

IEEE2017

Memristive Biosensors Integration With Microfluidic Platform

Giovanni De Micheli, Sandro Carrara, Francesca Puppo, Ioulia Tzouvadaki, Alessandro Vallero

The integration of nanoscale sensors with microfluidic platforms is a powerful tool for the design of robust biosensing devices that present high reliability and the advantage of a quick data acquisition. In addition, microfluidic based lab-on-a-chip senso ...

Ieee-Inst Electrical Electronics Engineers Inc2016

Label-Free Ultrasensitive Memristive Aptasensor

Giovanni De Micheli, Sandro Carrara, Ioulia Tzouvadaki

We present the very first worldwide ever-reported electrochemical biosensor based on a memristive effect and DNA aptamers. This novel device is developed to propose a completely new approach in cancer diagnostics. In this study, an affinity-based technique ...

American Chemical Society2016

Study on the bio-functionalization of memristive nanowires for optimum memristive biosensors

Giovanni De Micheli, Sandro Carrara, Irene Taurino, Ioulia Tzouvadaki

Semiconductor nanowires are emerging as promising building blocks for biosensors enabling direct electrical detection of various biomolecules. In this framework, two-terminal Schottky-barrier silicon (Si) nanowire arrays that exhibit memristive electrical ...

Royal Society of Chemistry2016

Nano-fabricated memristive biosensors for biomedical applications with liquid and dried samples

Giovanni De Micheli, Sandro Carrara, Ioulia Tzouvadaki

Nanowire based platforms are widely reported for sensing applications and for their potential in the bio-detection field. In the present work, memristive nanowire devices are implemented for label-free sensing in liquid samples as well as in dried samples ...

IEEE2016

Computational Study on the Electrical Behavior of Silicon Nanowire Memristive Biosensors

Giovanni De Micheli, Sandro Carrara, Francesca Puppo, Ioulia Tzouvadaki

In this paper, a complete study is carried out investigating the relationship between the biosensing and the electrical characteristics of freestanding two-terminal Schottky-barrier silicon nanowires. This paper successfully reproduces computationally the ...

Institute of Electrical and Electronics Engineers2015

Bio-functionalization study of Memristive- Biosensors for Early Detection of Prostate Cancer

Giovanni De Micheli, Sandro Carrara, Ioulia Tzouvadaki

Silicon nanowires are reported for their application in bio sensing area and their potential in the detection of various biomolecules. In the present work, freestanding two-terminal Schottky-barrier silicon nanowire arrays exhibiting memristive behavior ar ...

2015

Memristive Biosensors for PSA-IgM Detection

Giovanni De Micheli, Sandro Carrara, Ioulia Tzouvadaki

Prostate cancer is the most common cancer among men except for skin cancer, and the detection at early stages is crucial. In the present work, nanofabricated memristive biosensors are subjected to surface bio-modification targeting at prostate-specific ant ...

2015

Modeling Memristive Biosensors

Giovanni De Micheli, Sandro Carrara, Francesca Puppo, Ioulia Tzouvadaki

In the present work, a computational study is carried out investigating the relationship between the biosensing and the electrical characteristics of two-terminal Schottky- barrier silicon nanowire devices. The model suggested successfully reproduces compu ...

2015