Fig. 1: Preparation and characterization of PIDA. | Nature Communications

Fig. 1: Preparation and characterization of PIDA.

From: Precisely translating computed tomography diagnosis accuracy into therapeutic intervention by a carbon-iodine conjugated polymer

Fig. 1

a Synthesis of PIDA by topochemical polymerization. b Supramolecular scaffold formed between scaffold 1 and monomer diiodobutadiyne. c Single-crystal structure of PIDA•1 co-crystals determined by X-ray diffraction (left), and SEM (top right) and optical (bottom right) images of PIDA•1 co-crystals, with the long dimension corresponding to the (100) axis. Each experiment was repeated 3 times independently with similar results. d UV-vis absorption spectrum of the PIDA suspension. Inset: Picture of the PIDA suspension. e Raman spectra of PIDA•1 co-crystals and the prepared PIDA suspension. f TEM image of dispersed PIDA nanofibers in the PIDA suspension. The experiment was repeated 3 times independently with similar results. g Elemental analysis of PIDA by EDX. h CT values of PIDA and iohexol as a function of sample concentrations. Inset: CT images of PIDA suspension and iohexol at corresponding concentrations. i CT images of pure water, PIDA suspension (5 mg mL−1), and PIDA aggregates. Top row: side view; Bottom row: Top view. Source data are provided as a Source Data file.

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