Procedure for the production of hollow fibres

Hollow fibres with inside diameters on the scale of nanometers are suitable for various applications in environmental technology and catalysis, as separation media and for storage, in medicine, biology and pharmacy as well as for optical and microelectronic devices. Previous methods for the production of hollow fibres usually resulted in high technical costs or could only be realised with a limited number of materials. A new procedure for the production of hollow fibres is based on the wetting of porous templates with dissolutions of the desired coating compounds, followed by the solidification of these coatings. This new method avoids complex steps of polymerisation and chemical vapour deposition. It allows the employment of a wide range of materials, and thus, the precise production of hollow fibres whose characteristics match exactly the targeted use.

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