The invention broadly relates to the use of \u03b1,\u03b2-unsaturated fatty acids to inhibit the filamentous growth of fungi and yeasts and to a method for producing same. The present invention also relates to the use of the process for uniformly coating hollow bodies according to the invention for coating tubes, vessels, syringe bodies, reflectors, domes and funnels. The haptics device provides the physical interface at which an end effector is manipulated to simulate needle insertion, etc. During operation, on receipt of the search criteria from a client, the search engine returns a search answer web page including the indices that effectively indexes the dynamic query answer web pages. ; and subsequently degumming the treated silk or silk cocoons; or alternatively, degumming silk or silk cocoons; and subsequently treating the degummed silk or silk cocoons with an ionic reagent comprising an aqueous solution of monovalent cations and monovalent anions, the cations and anions having ionic radii of at least 1.