title: A new method for the preparation of minicells for physiological studies.
mesh_terms: D001431:Bacteriological Techniques; D002452:Cell Count; D002455:Cell Division; D002501:Centrifugation, Zonal; D004926:Escherichia coli; D005069:Evaluation Studies as Topic; D008722:Methods; D010406:Penicillins; D013053:Spectrophotometry; D013997:Time Factors; D014465:Ultrasonics
chemical_list: D010406:Penicillins