Comment on

• Using mechanobiological mimicry of red blood cells to extend circulation times of hydrogel microparticles.

  Merkel TJ, Jones SW, Herlihy KP, Kersey FR, Shields AR, Napier M, Luft JC, Wu H, Zamboni WC, Wang AZ, Bear JE, DeSimone JM. Merkel TJ, et al. Proc Natl Acad Sci U S A. 2011 Jan 11;108(2):586-91. doi: 10.1073/pnas.1010013108. Epub 2011 Jan 10. Proc Natl Acad Sci U S A. 2011. PMID: 21220299 Free PMC article.