Cell printing is an emerging technique for use in tissue engineering and bio-manufacturing. The essential idea is to deliver living cells to target positions using droplets generated via various mechanisms including thermoor piezo-jetting, laser-guided direct write technique, and others (Boland et al. 2006; Ringeisen et al. 2006; Calvert 2007). By taking advantage of the intrinsic properties of...

Liquids handling is an important issue in biomedical analysis. We propose two different devices for ultrasonic droplets displacement. Each one involve a different physical phenomenon. The first device proposed is a low frequency standing waves using flexural plate waves (FPW). In this case, acoustic radiation pressure is involved for the displacement. The second one uses high frequency travelli...

the aim of the present study was to investigate the influence of nozzle configurations on spray drift and explain the influences using several atomization characteristics (length of spray sheet, spray angle, velocity distribution of flow field, fluctuation of velocity, and droplet size). nozzles manufactured by one company (lechler gmbh, germany) were tested by spraying local tap water in a win...

We studied the behavior of a nonspherical Pickering droplet subjected to an electric stress. explained effect geometry, particle size, and field strength, on deformation collapsing particle-covered droplets.

In this paper we present a three-dimensional Navier–Stokes solver for incompressible two-phase flow problems with surface tension and apply the proposed scheme to the simulation of droplet-deformation. Our approach employs a standard finite difference/finite volume discretization on uniform Cartesian staggered grids and uses Chorin’s projection approach. The free surface between the two fluid p...