The aim of “EUCHEMBIOJ 2025: II. International Conference on Chemistry and Biotechnology” is to investigate the rapidly developing topic of biotechnology and to bring together researchers in the field of Chemistry and Biotechnology. The topics discussed at the conference include application areas of biotechnology such as biomedical technology, biosensors, molecular biology, medicine, environment, agriculture, nanotechnology, and chemistry studies for application in the field of chemistry and biotechnology. Leading experts from around the world will come together at the conference to share their studies, perspectives, and ideas on the latest developments in biotechnology. This dynamic and multidisciplinary field will be fully explored at the conference, from cutting-edge technologies to creative applications, from fundamental concepts to theoretical frameworks. The conference will take place online on December 5 – 7, 2025, based in Istanbul, Türkiye.