Fig. 1: Spectroscopic and morphological identification of hybrid nanostructures formed by the enantiomers of cysteine. | Nature Communications

Fig. 1: Spectroscopic and morphological identification of hybrid nanostructures formed by the enantiomers of cysteine.

From: Chiral nanocrystals grown from MoS2 nanosheets enable photothermally modulated enantioselective release of antimicrobial drugs

Fig. 1

a, b Optical spectra (a), SEM images and corresponding simulated morphologies (b) of as-synthesized nanostructures based on growth with seeds of exfoliated MoS2 nanosheets in the absence and presence of different concentrations of L-Cys (0.4–2.0 μM). c, d Dark-field TEM image (c), TEM and EDX element scan (d) of Au/MoS2 nanostructures formed in the absence of L-Cys. e TEM and EDX element scans of Au/MoS2 nanostructures synthesized with the addition of L-Cys (2.0 μM). f, g Circular dichroism spectra (f) and chiroptical g-factor responses (g) of Au/MoS2 nanostructures synthesized in the absence (control MoS2 sample) and presence of various concentrations of L-Cys and D-Cys (0.4–2.4 μM), respectively. Blue and red lines represent the circular dichroism curves from samples prepared from L-Cys and D-Cys, respectively. a, f, g Source data are provided as a Source Data file.

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