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Keywords:

  • capsules;
  • hemoglobin;
  • biocompatibility;
  • hemocompatibility;
  • blood substitutes
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On page 1446, Junbai Li, Yang Yang, and co-workers report that hemoglobin-based capsules can be successfully fabricated through covalent layer-by-layer (LbL) assembly. Such assembled capsules are well controlled and adjusted to possess similar properties to those of living red blood cells, which enables the capsules to function as blood substitutes.