Premium
Protein‐Modified Porous Silicon Nanostructures
Author(s) -
De Stefano Luca,
Rea Ilaria,
Giardina Paola,
Armenante Annunziata,
Rendina Ivo
Publication year - 2008
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200702454
Subject(s) - materials science , porous silicon , passivation , silicon , wetting , amphiphile , nanotechnology , dissolution , nanostructure , membrane , porosity , chemical engineering , optoelectronics , polymer , copolymer , layer (electronics) , composite material , chemistry , engineering , biochemistry
Biological passivation of porous silicon (PSi)‐based optical devices is demonstrated. Infiltration by small amphiphilic fungal proteins called HFBs changes the wettability of the PSi surface (see figure) and protects the sponge‐like structure against dissolution by basic solutions. This protein membrane leaves the sensing ability of an optical transducer unchanged, adding chemical stability that can be the key in biomolecular experiments.