Science Advances

Supplementary Materials

This PDF file includes:

  • fig. S1. Assembly from TGA-CdTe NPs.
  • fig. S2. Helical structure of opposite handedness found among helices assembled from L-Cys CdTe NPs.
  • fig. S3. Chiroptical spectra of different NP assemblies.
  • fig. S4. ITC data for chiral interactions and their fitting with thermodynamic models.
  • fig. S5. Long-term stability of homochiral mesoscale helices.
  • fig. S6. CdS nanofibers observed after long-term storage of the CdTe NP dispersions.
  • fig. S7. Contribution of random aggregates to the overall chiroptical activity.
  • fig. S8. Vis-NIR chiroptical response of mesoscale helices.
  • fig. S9. CD and absorption spectra of CdTe NPs.
  • fig. S10. Calculated CD spectra of CdTe helix with or without a Te nanowire core.
  • fig. S11. Refractive index data sets.
  • fig. S12. Extinction spectrum of Au helices.
  • fig. S13. Absorption and scattering spectra of Au and CdTe helices.
  • figs. S14 to S16. Helix thickness.
  • figs. S17 and S18. EFI movie snapshots.
  • fig. S19. Nanorod dimer simulations.
  • fig. S20. TEM images and crystal lattice of CdTe NPs.
  • fig. S21. Absorption spectra of CdTe NPs during aging.
  • fig. S22. CD spectra of CdTe NPs during aging.
  • fig. S23 Verification of the computational model.
  • fig. S24. Simulations using CdTe NP refractive index.
  • schematic S1. Experimental methods.
  • schematic S2. Schematic drawing of an "untwisted" helix
  • table S1. Statistical analysis of racemic NP assemblies.
  • table S2. Statistical analysis of geometrical parameters of helices obtained from SEM images.
  • table S3. Percent yield calculations.
  • section S1. Percent yield
  • Legends for movies S1 to S6

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Other Supplementary Material for this manuscript includes the following:

  • movie S1 (.mp4 format). R-helix in 3D rotating view.
  • movie S2 (.mp4 format). L-helix in 3D rotating view.
  • movie S3 (.mp4 format). RCP irradiation on an R-helix.
  • movie S4 (.mp4 format). RCP irradiation on an L-helix.
  • movie S5 (.mp4 format). RCP irradiation on an achiral ribbon.
  • movie S6 (.mp4 format). LCP irradiation on an achiral ribbon.

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