Extended Data Fig. 3: Time-of-flight secondary ion mass spectrometry mapping of a concentrically partitioned PEG mixture. | Nature

Extended Data Fig. 3: Time-of-flight secondary ion mass spectrometry mapping of a concentrically partitioned PEG mixture.

From: Near-identical macromolecules spontaneously partition into concentric circles

Extended Data Fig. 3

(i)–(ii) Confocal laser scanning microscopy (CLSM) images for λext = 552 nm (RhB) and (iii)–(vi) time-of-flight secondary ion mass spectrometry (TOF-SIMS) maps of a concentrically partitioned 3:7 mixture of MePEG5KRhB and HPEG35KOH. (iii)–(vi) TOF-SIMS maps based on overlay, C2H5O+ (m/z 45.03), NH4+ (m/z 18.06), and RhB– (m/z 397.21). Scale bars, 20 µm.

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