Figure 2: Characterization of composite HG/xNR samples and HAIRS-xNR sample preparation. | Nature Communications

Figure 2: Characterization of composite HG/xNR samples and HAIRS-xNR sample preparation.

From: Photothermally triggered actuation of hybrid materials as a new platform for in vitro cell manipulation

Figure 2

(a) Bottom: ultraviolet–vis absorption spectra (in units of optical density (OD) of HG/xNR samples with various concentrations of AuNRs: (from bottom to top) 1: 0 μg ml−1 (HG/0NR); 2: ∼3.4 μg ml−1 (HG/10NR); 3: ∼4.9 μg ml−1 (HG/20NR); 4: ∼7.8 μg ml−1 (HG/30NR); 5: ∼12.2 μg ml−1 (HG/50NR). The inset shows a TEM image of the AuNRs in DMSO. The scale bar is 10 nm. Top: a photograph of the corresponding samples with increasing AuNR concentrations. The scale bar is 5mm. (b) Schematic of the fabrication procedure for the HAIRS-NR system where the AuNR-loaded hydrogel precursor solution is cured as a thin film wetting the microplate array. (c) 45° side-view (top) and top-view (bottom) scanning electron microscope (SEM) images of a rectangular array of 2 μm-thick, 10 μm-long and 12 μm-high polymer (NOA61) microplates used for the construction of HAIRS-NR material. The scale bar (top) and the arrow bar (bottom) are 10 μm.

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