Premium
Competitive Cellular Uptake of Nanoparticles Made From Polystyrene, Poly(methyl methacrylate), and Polylactide
Author(s) -
Höcherl Anita,
Dass Martin,
Landfester Katharina,
Mailänder Volker,
Musyanovych Anna
Publication year - 2012
Publication title -
macromolecular bioscience
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.924
H-Index - 105
eISSN - 1616-5195
pISSN - 1616-5187
DOI - 10.1002/mabi.201100337
Subject(s) - miniemulsion , polystyrene , methyl methacrylate , nanoparticle , polymer , pulmonary surfactant , polymer chemistry , hela , chemical engineering , chemistry , internalization , fluorescence , biophysics , flow cytometry , poly(methyl methacrylate) , copolymer , materials science , nanotechnology , cell , organic chemistry , polymerization , biochemistry , microbiology and biotechnology , engineering , physics , quantum mechanics , biology
The uptake behavior of negatively charged fluorescent nanoparticles made from different polymers (PS, PMMA, and PLLA) is studied on HeLa cells. All particles are obtained by the miniemulsion process using sodium dodecylsulfate as anionic surfactant. The size of the particles is in the range 105–125 nm. Cell uptake is analyzed by flow cytometry and reveals a higher uptake of PLLA particles compared to PMMA and PS particles. In competitive uptake studies two different types of particles are co‐incubated with the HeLa cells; the results indicate a mutual influence of the particles on their uptake behavior. A reduced internalization of PLLA particles in the presence of PS particles is observed, although neither the co‐incubation of PMMA and PLLA nor of PMMA and PS shows similar effect.