Easy Printing of High Viscous Microdots by Spontaneous Breakup of Thin Fibers

• DOI: 10.1021/acsami.7b17358
• Publication Date: 2017-12-26T14:40:41Z
• Authors: L. Mecozzi; O. Gennari; S. Coppola; F. Olivieri; R. Rega; B. Mandracchia; V. Vespini; A. Bramanti; P. Ferraro; S. Grilli
• Keywords: Microscale chemistry; PLGA; Electrospinning

Electrohydrodynamic jetting is emerging as a successful technique for printing inks with resolutions well beyond those offered by conventional inkjet printers. However, the variety of printable still limited to relatively low viscosities (typically <20 mPa s) due nozzle clogging problems. Here, we show possibility ordered microdots high viscous such poly(lactic-co-glycolic acid) (PLGA) exploiting spontaneous breakup thin fiber generated through nozzle-free pyro-electrospinning. The PLGA deposited onto partially wetting surface, and achieved simply applying an appropriate thermal stimulation, which able induce polymer melting hence mechanism surface area minimization Plateau-Rayleigh instability. results that this good candidate extending printability at microscale inks, thus their applicability additional applications, cell behavior under controlled morphological constraints.