Droplet formation microbead size

The objectives of this chapter are to review the studies on droplet formation mechanisms under the action of electrostatic forces and to determine key parameters critical for production of very small polymer microbeads (i.e., less than 100 p,m in diameter). Specifically, attention is given to the effects of applied potential, needle size, polymer concentration, and electrode spacing, and geometry. An overview of theoretical models and experimental correlations for predictions of droplet diameter is presented. 

Several parameters affecting the droplet-formation mechanism and the microbead diameter were investigated, including the needle size, electrode spacing, sodium alginate concentration, and applied potential [18-20]. 

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