Use of Coaxial Gas Jackets to Stabilize Taylor Cones of Volatile Solutions and to Induce Particle-to-Fiber Transitions


  • We thank the National Science Foundation for financial support under grant CTS-0129190. We are very grateful to Dr. Ignacio Gonzalez Loscertales for fruitful discussions.


A novel method to control the stability of Taylor cones during electrospinning/electrospray of solutions with highly volatile solvents is presented. An additional advantage is that fiber-to-particle transitions are also controlled without changing the chemistry or the voltage/current characteristics. The Figure shows the transition from particles to fibers effected by simply changing the gas flow rate through an outer capillary.