Silica diatom shells tailored with Au nanoparticles enable sensitive analysis of molecules for biological, safety and environment applications.
V OnestoM VillaniM L ColuccioR MajewskaA AlabastriE BattistaA SchiratoD CalestaniN CoppedéM CesarelliF AmatoE Di FabrizioFrancesco GentilePublished in: Nanoscale research letters (2018)
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.
Keyphrases
- highly efficient
- low cost
- gold nanoparticles
- heavy metals
- reduced graphene oxide
- risk assessment
- particulate matter
- health risk assessment
- big data
- loop mediated isothermal amplification
- sensitive detection
- quantum dots
- fatty acid
- smoking cessation
- human health
- drinking water
- microbial community
- electronic health record
- water quality
- simultaneous determination