Stick-slip sliding of water drops on chemically heterogeneous surfaces

S Varagnolo, D Ferraro, P Fantinel, M Pierno… - Physical review …, 2013 - APS
We present a comprehensive study of water drops sliding down chemically heterogeneous
surfaces formed by a periodic pattern of alternating hydrophobic and hydrophilic stripes …

Droplet breakup driven by shear thinning solutions in a microfluidic T-junction

E Chiarello, A Gupta, G Mistura, M Sbragaglia… - Physical Review …, 2017 - APS
Droplet-based microfluidics turned out to be an efficient and adjustable platform for digital
analysis, encapsulation of cells, drug formulation, and polymerase chain reaction. Typically …

On the onset of motion of sliding drops

C Semprebon, M Brinkmann - Soft Matter, 2014 - pubs.rsc.org
In this article we numerically investigate the onset of motion of liquid drops in contact with a
plane and homogeneous substrate with contact angle hysteresis. The drops are driven by a …

Static magnetowetting of ferrofluid drops

C Rigoni, M Pierno, G Mistura, D Talbot, R Massart… - Langmuir, 2016 - ACS Publications
We report results of a comprehensive study of the wetting properties of sessile drops of
ferrofluid water solutions at various concentrations deposited on flat substrates and …

Sliding drops across alternating hydrophobic and hydrophilic stripes

M Sbragaglia, L Biferale, G Amati, S Varagnolo… - Physical review E, 2014 - APS
We perform a joint numerical and experimental study to systematically characterize the
motion of 30 μ l drops of pure water and of ethanol in water solutions, sliding over a periodic …

Pinning and wicking in regular pillar arrays

C Semprebon, P Forsberg, C Priest, M Brinkmann - Soft Matter, 2014 - pubs.rsc.org
Pinning and wicking of a liquid meniscus in a square array of pillars is investigated in
numerical energy minimizations and compared to wetting experiments. Our combined study …

Tuning drop motion by chemical patterning of surfaces

S Varagnolo, V Schiocchet, D Ferraro, M Pierno… - Langmuir, 2014 - ACS Publications
We report the results of extensive experimental studies of the sliding of water drops on
chemically heterogeneous surfaces formed by square and triangular hydrophobic domains …

Division of ferrofluid drops induced by a magnetic field

C Rigoni, S Bertoldo, M Pierno, D Talbot… - Langmuir, 2018 - ACS Publications
We report a comprehensive study of the division of ferrofluid drops caused by their
interaction with a permanent magnet. As the magnet gradually approaches the sessile drop …

Controlling the distance of highly confined droplets in a capillary by interfacial tension for merging on-demand

D Ferraro, M Serra, D Filippi, L Zago, E Guglielmin… - Lab on a Chip, 2019 - pubs.rsc.org
Droplet microfluidics is a powerful technology that finds many applications in chemistry and
biomedicine. Among different configurations, droplets confined in a capillary (or plugs) …

Generation of water-in-oil and oil-in-water microdroplets in polyester-toner microfluidic devices

E Piccin, D Ferraro, P Sartori, E Chiarello… - Sensors and Actuators B …, 2014 - Elsevier
This paper demonstrates that disposable polyester-toner microfluidic devices are suitable to
produce either water-in-oil (W/O) or oil-in-water (O/W) droplets without using any surface …