MICHIGAN - US biotech firm Kraig Biocraft Laboratories, which develops genetically modified spider silk-based fibres, has signed a memorandum of understanding (MOU) with a provincial government in Vietnam which outlines a framework for the creation and rearing of transgenic silkworms in Vietnam. The company said the goal of the agreement is the commercialisation of its technology for the technical textile markets. Spider silk is antimicrobial, hypoallergenic, and completely biodegradable.