EPSRC logo

Details of Grant 

EPSRC Reference: EP/S036857/1
Title: Non-Newtonian Slippery Liquid Infused Porous Surfaces: NN-SLIPS
Principal Investigator: Semprebon, Dr C
Other Investigators:
Researcher Co-Investigators:
Project Partners:
Sheffield Hallam University Stemnovate Ltd
Department: Fac of Engineering and Environment
Organisation: Northumbria, University of
Scheme: New Investigator Award
Starts: 01 October 2019 Ends: 30 September 2022 Value (£): 347,347
EPSRC Research Topic Classifications:
Complex fluids & soft solids
EPSRC Industrial Sector Classifications:
Healthcare Food and Drink
Related Grants:
Panel History:
Panel DatePanel NameOutcome
13 Jun 2019 EPSRC Physical Sciences - June 2019 Announced
Summary on Grant Application Form
When a liquid comes into contact with a solid surface, its interface can be pinned by surface texture, giving rise to the ubiquitous phenomenon of the contact angle hysteresis. The presence of Contact Angle Hysteresis is a challenge for liquid manipulation and affects many practical applications ranging from self-cleaning coatings to microfluidics and oil recovery.

Inspired by the Nepenthes pitcher plant, SLIPS (Slippery Liquid-Infused Porous Surfaces) have been recently introduced. Their enhanced liquid mobility relies on the presence of a lubricating fluid between the liquid and solid, reducing the contact to the solid surface, and therefore the driving force required for liquid manipulation. Besides impacting the static friction, lubricating fluids impact liquid motion also through the presence of an additional fluid layer and the creation of a wetting ridge, where viscous dissipation mostly takes place.

The growing interest in SLIPS, lead to applications in areas such as food packaging and biomedical devices, which involve fluids with complex (non-Newtonian) rheological properties. Despite that, to date most studies of SLIPS address mainly equilibrium properties or dynamics of simple (Newtonian) liquids. In contrast, it is expected that the combination of solid texture, shape of liquid interfaces and complex fluid rheology will play a dominant role in liquid motion.

This project aims at exploring the impact of non-Newtonian liquid rheology on the Physics of SLIPS. With the aid of computational fluid dynamics simulations, based on a recently developed ternary lattice Boltzmann method, this project will elucidate the dynamics of complex liquids (both flowing and infusing) on SLIPS and develop new key principles combining the geometry of solid textures and complex liquid properties in the design of new smart materials.

Key Findings
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
Potential use in non-academic contexts
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
Impacts
Description This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
Summary
Date Materialised
Sectors submitted by the Researcher
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
Project URL:  
Further Information:  
Organisation Website: