Apollonian Fall

Scientists in China have synthesized spider silk from genetically modified silkworms, producing fibers six times tougher than the Kevlar used in bulletproof vests. The study, published September 20 in the journal Matter, is the first to successfully produce full-length spider silk proteins using silkworms. The findings demonstrate a technique that could be used to manufacture an environmentally friendly alternative to synthetic commercial fibers such as nylon. "Silkworm silk is presently the only animal silk fiber commercialized on a large scale, with well-established rearing techniques," said Mi. "Consequently, employing genetically modified silkworms to produce spider silk fiber enables low-cost, large-scale commercialization." Scientists have eyed spider silk as an enticingly sustainable alternative to synthetic fibers, which can release harmful microplastics into the environment and are often produced from fossil fuels that generate greenhouse gas emissions. But turning to nature for alternatives isn't without challenges.