See "Activity of OP0595/β-lactam combinations against Gram-negative bacteria with extended-spectrum, AmpC and carbapenem-hydrolysing β-lactamases" Livermore, David M.; Mushtaq, Shazad; Warner, Marina; Woodford, Neil, Journal of Antimicrobial Chemotherapy (2015), 70(11), 3032-3041
In normal settings, 1 Angstrom is represented by 10 mm on the 3D printed molecule; in the "small" items, 1 Angstrom is represented by 5 mm.