Fig. 3: Nanopore analysis of the morphological conversion mechanism of Au nanospheres to Au nanoplates.
a The ratio of nanoplates and coalescence in the process of morphology transformation obtained from CNN prediction model and peak analysis code, respectively. 1135, 1035, 1283, and 1198 events were obtained in the 1, 3, 5, and 9 h samples, respectively. A representative current trace and event scatter plots of dwell time vs. current blockade of all the experiments are displayed in Supplementary Figs. 27 and 28. b Typical nanopore current–time peak shape for nanoparticle-nanoparticle, nanoparticle-nanoplate, and nanoplate-nanoplate coalescence events (left to right). c Current versus time trace of Au nanospheres without (left) and with 500 nm light (right). d Scatter plots for td vs. Ib of Au nanospheres translocation without (left) and with 500 nm light (right) from (c) and along the sides are the corresponding histograms. Measurements were collected using a same ~20 nm nanopore at a bias voltage of 1 V. The baseline current is about 310 pA and RMS is 2.18 pA. e Box plots of event rate and Ib/I0 from Au nanospheres with 500 nm light and without light. Box plots show median (black line), mean (black square box), quartiles (boxes), and range (whiskers). Mann–Whitney U tests, ***p < 0.001.
