Focussed charge electrospinning spinneret

1 . A nozzle for an electrospinning spinneret, wherein the nozzle comprises a material transporting channel having a wall, wherein the wall has an end surface for forming a droplet, wherein the end surface is located at an outlet of the nozzle and the wall ends at the end surface, wherein the material transporting channel, including the wall and the end surface, is of an electrically non-conductive material, wherein the nozzle further comprises an electrode extending through the material transporting channel at least up to the end surface of the wall, wherein the electrode is arranged centrally within the material transporting channel, wherein the electrode extends beyond the end surface of the wall, and the electrode is configured to form a voltage with a collector opposite to the electrode and spaced apart from the electrode, wherein the electrode extends through an interior of the material transporting channel and protrudes beyond the end surface into a Taylor cone forming region, and wherein the end surface of the wall is configured to support formation of the Taylor cone from which a fiber is electrospun.

2 . The nozzle according to claim 1 , wherein the electrode extends from the end surface of the wall over a distance of at least half of a diameter of the channel.

3 . The nozzle according to claim 1 , wherein the electrode is a wire.

4 . The nozzle according to claim 1 , wherein the electrically non-conductive material is a polymer or synthetic material.

5 . The nozzle according to claim 1 , wherein the electrically non-conductive material is a ceramic material.

6 . An electrospinning spinneret comprising one or more nozzles of claim 1 .

7 . The electrospinning spinneret according to claim 6 , further comprising a fluid supply for each nozzle of the one or more nozzles, and a control unit for individually controlling the flow rate of each fluid supply.

8 . The electrospinning spinneret according to claim 6 , further comprising a high voltage power supply for each nozzle of the one or more nozzles, and a control unit for individually controlling the output of each high voltage power supply.

9 . The electrospinning spinneret according to claim 6 , wherein the one or more nozzles comprise a plurality of nozzles that are arranged in a circular arrangement.

10 . The electrospinning spinneret according to claim 6 , wherein the one or more nozzles comprise a plurality of nozzles that are arranged in an m×n array, m and n being integers.

11 . The electrospinning spinneret according to claim 6 , wherein the one or more nozzles comprise a plurality of nozzles.