Hydrophilic PAAm/SA‐Ca2+ Hydrogel Coating for Ureteral Stents With Lubrication, Antimicrobial Adhesion, and Anti‐Stone Functions

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Hydrogel coating reduces bacterial adhesion and calculus deposition in ureteral stents, highlighting its antimicrobial properties.

The PAAm/SA-Ca2+ hydrogel coating reduced calculus deposition by 74% within a week, improving stent efficacy.
With its adjustments based on calcium chloride, the hydrogel achieved a significant reduction in friction coefficient from 0.19 to 0.06.
Testing revealed the hydrogel's antibacterial properties, demonstrating 97% inhibition against E. coli and 98% against S. aureus.
This dual-network hydrogel also showcased excellent stability and hemocompatibility, suggesting its effectiveness for medical applications.

Zhang et al. (2025) studied this question.

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