Carlotta Guiducci

Related publications (63)

Wireless sensor networks are one of the most rapidly evolving research and development fields for microelectronics. Their applications are countless, and the market potentials are huge. However, many technical hurdles have to be overcome to achieve a wides ...

2006

Hydrogenated amorphous silicon ultraviolet sensor for deoxyribonucleic acid analysis

Giovanni De Cesare, Carlotta Guiducci

In this letter, we show the results achieved using a hydrogenated amorphous silicon photosensor for a "label-free" deoxyribonucleic acid (DNA) analysis based on the measurements of the absorbance in the ultraviolet range. The optimization of the sensor str ...

2006

Innovative optoelectronic approaches to biomolecular analysis with arrays of silicon devices

Giovanni De Cesare, Carlotta Guiducci

Novel approaches for the development of integrated molecular analysis tools have been tested. A label-free method for molecular detection and characterization based on UV absorbance have been applied and two technologies of silicon photodetectors arrays ha ...

2006

Microelectrodes on a silicon chip for label-free capacitive DNA sensing

Carlotta Guiducci

This paper presents the experimental characterization of two-terminal microfabricated capacitors for microarrays with an electrical sensing of label-free deoxyribonucleic acid (DNA). So far, such a concept has been demonstrated only in experimental setups ...

2006

NOVELTY - The micro-array device has several micro-locations (3) associated with a preset DNA sequence. Several micro-sensors are positioned corresponding to the micro-locations. The micro-sensors output electrical signals indicating the absorption of ultr ...

Univ Alma Mater Studiorum Di Bologna; Ricco B; Guiducci C2006

This paper presents a fully electronic label-free DNA chip in 0.5-mu m CMOS technology, with 5-V supply voltage, suitable for low-cost highly integrated applications. The chip features an array of 128 sensor sites with gold electrodes and integrated measur ...

2006

Development and functionalisation of Sb doped SnO2 thin films for DNA biochip applications

Carlotta Guiducci, Olivier Renault

In view of developing DNA biochips based on electric detection, well controlled DNA functionalisation of conductive substrate electrode is a challenging process. In this study, the whole process of functionalisation onto home made conductive films with con ...

2006

Semiconductor oxide based electrodes for the label-free electrical detection of DNA hybridization: Comparison between Sb doped SnO2 and CdIn2O4

Carlotta Guiducci

First results are reported regarding the design, fabrication and operation of a DNA biochip based on a semiconductor oxide electrode that employs label-free electrical detection of the DNA hybridization. The same process of DNA functionalisation, including ...

2006

DNA functionalised semiconductor metallic oxide electrodes have been developed for the direct electrochemical detection of DNA hybridization, without labelling or the introduction of a redox couple. Conductive CdIn2O4 thin films with controlled properties ...

2006

Hardware-software design of a smart sensor for fully-electronic DNA hybridization detection

Carlotta Guiducci

This paper describes the design of a smart sensor for label-free detection of DNA hybridization. The sensor is based on a direct electrical transduction principle: it measures impedance variation at the interface between a bio-functionalized electrode and ...

2005