Abstract

The electrical transport across a biomimetic interface made up of spin coated melanin layers on nanotextured silicon surfaces with different texturing features and wetting properties is discussed. Nanotexturing allows, under certain conditions, the melanin to anchor better on a hydrophobic silicon surface, overcoming the hydrophilic melanin-hydrophobic silicon interface issue. The feature of the electrical signal transduction across such a structure was studied by impedance spectroscopy and found to be influenced by the nano-texturing chemistry and surface morphology. The effects of a voltage pulse, as external stimulus modifying the electrical transport mechanisms, and retention of the subsequently achieved carrier transport conditions have been elucidated. The results suggest a possible exploiting of this circuit element for bio and environmental molecules' sensing.

Autore Pugliese

• Palumbo Fabio , Ambrico Marianna , Ambrico Paolo Francesco , Cardone Antonio , Cicco Stefania Roberta

Tutti gli autori

• Ambrico M.; Ambrico P.F.; Cardone A.; Cicco S.; Palumbo F.; Ligonzo T.; Di Mundo R.; Petta V.; Augelli V.; Favia P.; Farinola G. M.

Titolo volume/Rivista

JOURNAL OF MATERIALS CHEMISTRY C

Anno di pubblicazione

2014

ISSN

2050-7526

ISBN

Non Disponibile

Numero di citazioni Wos

Nessuna citazione

Ultimo Aggiornamento Citazioni

Non Disponibile

Numero di citazioni Scopus

Non Disponibile

Ultimo Aggiornamento Citazioni

Non Disponibile

Settori ERC

Non Disponibile

Codici ASJC

Non Disponibile