Affiliation:
1. Institute of Applied Sciences and Intelligent Systems “Eduardo Caianiello"
2. Institute for Endocrinology and Experimental Oncology “Gaetano Salvatore"
Abstract
Several living organisms are able to synthesize complex nanostructures
provided with peculiar physical and chemical properties by means of
finely-tuned, genetically controlled biomineralization processes.
Frustules, in particular, are micro- and nano-structured silica shells
produced by ubiquitous diatom microalgae, whose optical properties
have been recently exploited in photonics, solar energy harvesting,
and biosensing. Metallization of diatom biosilica, both in the shape
of intact frustules or diatomite particles, can trigger plasmonic
effects that in turn can find application in high-sensitive detection
platforms, allowing to obtain effective nanosensors at low cost and on
a large scale. The aim of the present review article is to provide a
wide, complete overview on the main metallization techniques applied
to diatom biosilica and on the principal applications of diatom-based
plasmonic devices mainly but not exclusively in the fields of
biochemical sensing, diagnostics and therapeutics.
Funder
Associazione Italiana per la Ricerca sul
Cancro
Consiglio Nazionale delle
Ricerche
Vetenskapsrådet
Subject
Atomic and Molecular Physics, and Optics,Biotechnology
Cited by
12 articles.
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