Fig. 1: Analysis of Pt-base nanoparticles. | Communications Materials

Fig. 1: Analysis of Pt-base nanoparticles.

From: Design and evaluation of multi-core raspberry-like platinum nanoparticles for enhanced photothermal treatment

Fig. 1: Analysis of Pt-base nanoparticles.The alternative text for this image may have been generated using AI.

A Transmission electron microscopy images of NS, with larger view at the bottom; B Transmission electron microscopy images of NR, with larger view at the bottom; C NS size distribution analyzed on 200 independent nanoparticles on TEM images; D NR size distribution analyzed on 200 independent nanoparticles on TEM images; E Absorbance of NS and NR at the same Pt concentration; F XANES spectra at the Pt L3-edge for Pt NS and Pt NR compared with Pt foil. G First derivative of the XANES spectra to corroborate the changes in oxidation state. H Fourier transform (FT) of EXAFS signal for Pt foil, Pt NS and Pt NR. I Heating curves of NS and NR dispersed in water at [Pt]= 6.7 mM and irradiated with an 808 nm laser beam at an output power of 1.65 W (average power density of 1 W cm−²). Three 10 min laser on/off cycles are provided that prove the stability of the nanoparticles upon heating.

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