The collection of material entities and their qualities that are located near a live organism, tissue or cell and can influence its growth.
Right now this may be incomplete. Should also cover e.g. sound, light as well.
PERSON:Richard Scheuermann, Jie Zheng, Bjoern Peters
purified MHC molecule preparation
cell culture supernatant
phage display library
blood serum specimen
blood plasma specimen
bronchial alveolar lavage
glucose in solution
cell line cell