Multi-Scale Modeling and Simulation of Transport Processes in an Elastically Deformable Perforated Medium.

In this paper, we derive an effective model for transport processes in periodically perforated elastic media, taking into account, e.g., cyclic elastic deformations as they occur in lung tissue due to respiratory movement.

High performance liquid chromatography (HPLC) of natural products. IV. The use of HPLC in biosynthetic studies of cephalosporin C in the cell-free system.

A new cepham metabolite has been isolated from the filtered broth of Cephalosporium acremonium by high performance liquid chromatography (HPLC) and identified as 7 beta-(5-D-amino-adipamido)-3 beta-hydroxy-3 alpha-methyl-cepham-4 alpha-carboxylic acid (I). Pure penicillin N was prepared using HPLC in the analytical mode. When I was added in place of penicillin N as substrate for the cell-free biosynthetic of cephalosporin, no formation of deacetoxycephalosporin C (II) was observed.