Silica diatom shells tailored with Au nanoparticles enable sensitive analysis of molecules for biological, safety and environment applications

V. Onesto, M. Villani, M. L. Coluccio, R. Majewska, A. Alabastri, E. Battista, A. Schirato, D. Calestani, N. Coppedé, M. Cesarelli, F. Amato, Enzo M. Di Fabrizio, F. Gentile

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

Diatom shells are a natural, theoretically unlimited material composed of silicon dioxide, with regular patterns of pores penetrating through their surface. For their characteristics, diatom shells show promise to be used as low cost, highly efficient drug carriers, sensor devices or other micro-devices. Here, we demonstrate diatom shells functionalized with gold nanoparticles for the harvesting and detection of biological analytes (bovine serum albumin—BSA) and chemical pollutants (mineral oil) in low abundance ranges, for applications in bioengineering, medicine, safety, and pollution monitoring.
Original languageEnglish (US)
JournalNanoscale Research Letters
Volume13
Issue number1
DOIs
StatePublished - Apr 10 2018

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