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Lab Leader:

Dr Guido Bolognesi

Our research focuses on the production and manipulation of functional particles in micron-scale flows and confined micro-environments for the investigation of their fundamental properties and behaviour as well as for the development of new applications in the healthcare, food and energy sectors. 

LATEST NEWS

Highlight
PhD studentship
available
(Start Date Oct 2024)

29.10.2023
 
New
Christina joins the group
01.10.2023
Guido joins the
JCG committee

21.07.2023

RESEARCH HIGHLIGHTS

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We reveal a physical mechanism that enables the preconcentration, sorting, and characterization of charged polystyrene nanobeads and liposomes dispersed in a continuous flow within a straight micron-sized channel.Our numerical and experimental analysis shows that a combination of nanoparticle diffusiophoresis, hydrodynamic effects and diffusioosmosis along the top and bottom channel walls are responsible for the observed particles dynamics. 

Reference

A. Chakra et al., ACS Nano, 2023, 17, 14644-14657

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We discovered a new physical mechanism whereby steady state salt gradients are exploited to trap, accumulate and release colloidal particles within the dead-end cavities of microstructured silicon surfaces. These findings will open new avenues of research on soft matter as well as chemical and biological systems, where solute concentration gradients and flows in confined geometries are ubiquitous.

Reference

N. Singh et al. Phys. Rev. Lett., 2020, 125, 248002.

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