ABSTRACT
The elaboration of metabolically active cell-containing materials is a decisive step toward the successful application of cell based technologies. The present work unveils a new process allowing to simultaneously encapsulate living cells and shaping cell-containing materials into solid-state macroporous foams with precisely controlled morphology. Our strategy is based on freeze casting, an ice templating materials processing technique that has recently emerged for the structuration of colloids into macroporous materials. Our results indicate that it is possible to combine the precise structuration of the materials with cellular metabolic activity for the model organism Saccharomyces cerevisiae.
Subject(s)
Alginates/chemistry , Freezing , Saccharomyces cerevisiae/metabolism , Glucuronic Acid/chemistry , Hexuronic Acids/chemistry , Porosity , Saccharomyces cerevisiae/cytologyABSTRACT
The non-enzymatic kinetic resolution of diversely substituted primary propargylic amines is reported featuring a highly selective acetyl transfer using (1S,2S)- in conjunction with Aliquat(TM) 336, affording the corresponding enantio-enriched N-acetylated propargylic amines with unprecedented levels of selectivity (s-factors of up to 193 at 50% conversion).
