How does the chain length of PEG functionalized at the outer surface of mesoporous silica nanoparticles alter the uptake of molecules?

New Journal of Chemistry v. 40, n. 9, p. 8060-8067, 2016 3.277 10.1039/c6nj01316c Fonseca, L. C.; Paula, A. J. de; Martinez, D. S. T.; Alves, O. L. 2016