according to one embodiment of the invention the functional capability of the presented technique could be shown by the construction of a prototype fig3 the motor and gear box unit as well as the scaffold of the prototype were assembled from elements of a metal construction kit compakt technik gmbh schriesheim germany a 25 u03bcl glass syringe having a metal needle gauge 22 point style 3 hamilton bonadutz switzerland was used for supplying the spinning solution fig3 shows a preferred embodiment of the invention the diffusion unit consists of a 20 polyacrylamid gel being equilibrated in 0 5 m potassium phosphate ph 8 0 a channel having a diameter of 0 7 mm was passed through the gel and ended in a plastic tip with an inside diameter of about 0 2 mm fig4 the protein thread is wound up by a teflon roll having a diameter of 4 cm and rotating with 60 rpm fig4 shows a summary about the diffusion unit with this prototype a 25 solution of the synthetic silk protein aq 24 nr3 see huemmerich et al 2004 could be spun to a 4 u03bcm thick thread fig5 presents an analysis of the assembled thread a the thread is wound up by means of the teflon roll b scanning electron microscopic picture of the generated.