Community Research and Development Information Service - CORDIS

Final Report Summary - BIOSENSORS-AGRICULT (DEVELOPMENT OF NANOTECHNOLOGY BASED BIOSENSORS FOR AGRICULTURE)

The project was based on effective collaboration, research and knowledge transfer between East European (Belarus and Ukraine) and West European (France, Latvia and Sweden) universities. Effective training of early stage researchers, technicians and management staff has been performed. More than 20 publications in peer reviewed journals and more than 20 conference theses have been published. Two workshops, 2 summer schools and 3 conferences were organized. More than 14 proposals within H2020 and FP-7 were submitted (but not funded). Two PhD students have applied for Erasmus program between partner universities (Ukraine-France and Latvia-France). Two bilateral projects Latvia-France and Ukraine-France were won in 2016.

The scientific work has been performed and the main achievements could be highlighted within the following structure.

Sample deposition:
-New photonic nanomaterials: ZnO utrathin nanolayers (<25 nm) and Al2O3/ZnO nanolaminates with layer thickness lower than 11 nm, deposited with ALD method on Si, glass and electrospinning fabricated organic nanofibers
-New plasmonic Au/ZnO nanostructures deposited using PVD and ALD methods for Au and ZnO respectively.

Sample characterization:
The deposited samples were characterized by SEM, EDX,Raman, FT-IR and XRD, optical and photoluminescence spectroscopy
Biosensor testing:
-Photoluminescence ZnO based biosensors were tested to glucose monitoring
-CVD deposited ZnO nanostructures were testes as electrochemical biosensors for aflotoxine detection
-ZnO nanorods and TiO2 nanoparticles were investigated for application in photoluminescence biosensors for Salmonella and Bovine leucosis detection

Within the project implementation the participants have developed new class on nanomaterials with unique structure, optical and sensitive properties:
1. Metal oxide nanolaminates deposited on flat substrates
2. Metal oxide/graphene nanolaminates on flat substrates
3. 1D organic core/ ultrathin metal oxide shell with enhanced optical properties (photoluminescence) and good prospects for biosensor application
4. Novel plasmonic Au/ZnO nanostructures with advanced optical and structure properties for biosensor applications
5. ALD coatings of optical fibers with ZnO nanolayers for optical fiber sensing.

Within a project we developed optical biosensors for the following agriculture pathogens:
- Salmonella
- Bovine leukemia virus
- Ochratoxin
- Aflotoxin

Novel optical fiber measurement biosensor system has been developed and applied for detection of ethanol vapors and organic solvents with different refractive indexes.
The achieved results will make an impact to development of rapid and express methods for agriculture applications. The achieved results make impact to agriculture, health and food safety control.

Related information

Reported by

LATVIJAS UNIVERSITATE
Latvia
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