There are three topics in this class, i.e. functional product development, circular economy- the reuse of biomaterials, and Bionic Technology. The goal is to exemplify the application of biological knowledge in exploring biomaterials for product development. The units in the topic of functional product development include product development for skin care, anti-diabetes, anti-inflammation and immune modulation, bioactive peptides, anti-cancer, anti-virus, stomach protection and anti-hyperlipidemia, natural product exploration, microbiota analysis and probiotic products. The units in circular economy- the reuse of biomaterials include the exploration of enzymes from biomaterials, fermentation of biomaterials for reuse, and bioenergy. In the topic of Bionic Technology, examples of biomimicry will be introduced and discussed.