Fluorescent Spider Silk: A Natural Phenomenon with Potential Applications.

Spider silk is a well-known biomaterial that has been utilized throughout human history, primarily for medical purposes. It possesses a unique combination of capabilities not found in other materials, making it the subject of extensive research, which ranges from utilizing its mechanical properties to leveraging its biocompatibility within living organisms for medical treatments. Spiders also possess a unique combination of characteristics that help them survive, including the fluorescence of their hemolymph, carapace, and setae, which are suggested to aid in catching prey, communication, and camouflage. During tests of the spider silk’s capabilities and structure, fluorescence was discovered in the silk of one species and subsequently tested in other species. The discovery of this property led to the association of the spider’s natural fluorescence with its silk, suggesting that its role is linked to interactions between prey and predators. The spider attracts prey through its acute eyesight by mimicking the fluorescent patterns of flowers, making it difficult for prey to pinpoint the spider’s position on the web. This property could be utilized to develop new types of cell markers for medical applications, incorporating the silk’s fluorescent components into cells, or to create novel textiles that exploit this characteristic, which lasts for long periods without losing its potency.