[gilleain]

Scientific papers use (still?) stereo images, for example those made using ORTEP:

https://www.umass.edu/molvis/francoeur/ortep/ortep.html

although seeing something like an alfa-helix as 3D might require some familiarity with the structure in the first place!

[OldGuyInTheClub]

Thanks for the pointer! I haven't followed the chemistry/biochemistry literature for years. I just assumed that 3D visualizations would have taken over.