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. Author manuscript; available in PMC: 2019 Sep 18.
Published in final edited form as: Anal Chem. 2019 Apr 15;91(9):5866–5873. doi: 10.1021/acs.analchem.9b00202

Figure 4.

Figure 4.

Other specialized designs of 3D-printed analytical ultracentrifugation centerpieces. Each row shows different centerpiece designs and a negative of the solution sectors, filling holes, and venting holes. (A) Narrow centerpieces with 1.5° (left) and 1.0° (middle) sectors, with a negative of the 1.0° design (right) featuring curved filling hole channels. (B) Thin cup centerpiece with 1.0 mm optical path length with integrated (half-height) window holders: centerpiece (left), negative of the sectors and channels (middle), and counterpart serving as half-height window holder and spacer. (C) Three-sector centerpiece for SV experiments with doubled capacity featuring two sample sectors on the left and right and a joint buffer reference in the middle: centerpiece (left), negative of sectors and channels (middle), and schematics of parallel beams of Rayleigh interference optics for detection of left sample (a) and right sample(b) both utilizing the same solvent reference.