Journal
NANOSCALE RESEARCH LETTERS
Volume 13, Issue -, Pages -Publisher
SPRINGER
DOI: 10.1186/s11671-018-2507-4
Keywords
Diatoms; Frustules; Sensing devices; Au functionalization; SERS; Safety; Biological sensing
Funding
- project Cancer biomarker detection using micro-structured/super-hydrophobic surfaces and advanced spectroscopy techniques [GR-2010-2320665]
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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.
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