Professor Kim Tae-il’s research team in the Department of Chemical Engineering and Polymer Engineering at Sungkyunkwan University (SKKU) has succeeded in developing a damping material that selectively removes external noise. Recently, bioelectronic devices such as smartwatches and smartphones have started to measure important bio-signals to check health conditions. However, the interference of various bio-signals like simple walking and movement makes it difficult to distinguish desired signals. In the current research, researchers try to reduce these noises by signal processing technology based on repetitive machine learning. Yet, it has problems such as distorting signals and using additional circuitry. Interestingly, in the case of spiders, they have vibration receptors, which can sensitively distinguish vibration signals from enemies, prey, and mates. Moreover, the desired signal can be read well even from external noises, such as wind or rain, because a cuticular pad located under the vibration receptor selectively absorbs and removes the specific signals. Based on this trait, the research team found a new damping material that mimics the trait of a spider’s pad, which selectively removes unnecessary noise for the first time in the world. Professor Kim Tae-il expected that it will be of great use in the fields of diagnosis and biomedical engineering. This research was published in the international journal Science on May 6th.