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(A) FTIR spectra recorded for DSP, ZOL, DZ(1:1)-Zn, DZ(1:1)@DOPA and DOPA. (B) XPS survey spectrum recorded for DZ(1:1)@DOPA. (C) The Pt 4f, N 1s, P 2s and P 2p core-line spectrum recorded for the DZ(1:1)@DOPA. (D) TEM images of ZOL@ALN, DSP@ALN, DZ(2:1)@ALN, DZ(1:1)@ALN and DZ(1:2)@ALN without negative stain, scale bar: 100 nm. (E) Number-average diameter distributions of DZ(1:1)@DOPA and DZ(1:1)@ALN. (F) SEM image and SEM-EDS elemental mapping of DZ(1:1)@DOPA, scale bar: 100 nm.
