Figure 3.

A) Spin‐filtering was used to transfer unmodified and polymer‐modified origami structures from Mg²⁺‐containing storage buffer into an ion‐free environment. Stability assay of unmodified (B) and polydopamine‐coated tubes (C) was conducted in pure water at 37 °C for 4 h; the structures were subsequently visualized by AFM, showing that polydopamine deposition enhanced the structural integrity.