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Fig. 1 | Nanoscale Research Letters

Fig. 1

From: Quantitative evaluation of cellular internalization of polymeric nanoparticles within laryngeal cancer cells and immune cells for enhanced drug delivery

Fig. 1

Characterization of PLGA particles. Fluorescence micrographs show the different sizes (a 100 nm, b 500 nm, and c 1 µm) of PLGA particles. Those particles can be detected under Olympus Optical Microscopy exhibiting relative uniform particle size distributions in water suspension. Dynamic light scattering (DLS) measurements display the size distribution weighted by volume for 100 nm (d), 500 (e), 1 µm (f) PLGA particles. Despite a small part of particle aggregation (smaller peaks: 3–4%) in 100 nm and 1 µm PLGA suspensions, the overall particle size distribution is quite homogeneous because of the narrow main peak

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