Real-time monitoring and control for high-efficiency autonomous laser fabrication of silicon nanoparticle colloids

Freeland, Brian (Dublin City University, Glasnevin, Dublin, Ireland) ; McCann, Ronan (Dublin City University, Glasnevin, Dublin, Ireland) ; O'Neill, Paul (Dublin City University, Glasnevin, Dublin, Ireland) ; Sreenilayam, Sithara (Dublin City University, Glasnevin, Dublin, Ireland) ; Tiefenthaler, Manuel (Lucerne University of Applied Sciences and Arts, Luzern, Switzerland) ; Dabros, Michal (School of Engineering and Architecture (HEIA-FR), HES-SO // University of Applied Sciences Western Switzerland) ; Juillerat, Mandy (School of Engineering and Architecture (HEIA-FR), HES-SO // University of Applied Sciences Western Switzerland) ; Foley, Greg (Dublin City University, Glasnevin, Dublin, Ireland) ; Brabazon, Dermot (Dublin City University, Glasnevin, Dublin, Ireland)

Nanotechnology is a significant research tool for biological and medical research with major advancements achieved from nanoparticle (Np) applications in biosensing and biotherapeutics. For laser ablation synthesis in solution (LASiS) to be chosen by researchers for Np colloid production, the process must effectively compete with chemical synthesis in terms of produced colloid quality and productivity while taking advantage of LASiS benefits in terms of its ‘green-synthesis’ and single-step functionalisation abilities. In this work, a newly developed integrated LASiS Np manufacturing system is presented including a Np flow reactor design, an at-line Np size monitoring via 180° dynamic light scattering, and a UV-Vis spectroscopy system used to estimate colloid concentration and stability. The experimental outcomes are discussed in terms of Np productivity and quality via these at-line measurements from the UV-Vis and DLS systems. The developed instrument was validated via off-line SiNps DLS, UV-Vis and morphology tests via TEM. Ultra-high quality and nanoparticle fabrication rate efficiency was achieved and is reported here.


Keywords:
Article Type:
scientifique
Faculty:
Ingénierie et Architecture
School:
HEIA-FR
Institute:
ChemTech - Institut des technologies chimiques
Date:
2021-03
Pagination:
14 p.
Published in:
The International Journal of Advanced Manufacturing Technology
Numeration (vol. no.):
2021, vol. 114, pp. 291-304
DOI:
ISSN:
0268-3768
Appears in Collection:

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 Record created 2021-05-25, last modified 2021-05-28

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