2026-10-14T00:15:24Z https://api.figshare.com/v2/oai

oai:figshare.com:article/32635826 2026-09-21T18:34:24Z category_146 category_915 category_7 category_21 category_873 category_46 category_64 portal_63 item_type_2 month_year_09_2026

Disposable Endoscope Cap Maintaining Clear Surgical Visualization under Fogging and Fouling Kayoung Son (24167177) Yeontaek Lee (15197213) Kyungwon Lee (415329) Yejin Jo (1565116) Yurim Lee (831029) Seung Hyun Lee (1444051) Min Young Seo (9079595) Jung Seung Lee (3990884) Seung Ah Lee (9641112) Seung-No Hong (4353844) Seung Hoon Lee (6987755) Jungmok Seo (1560256) Space Science Physical Sciences not elsewhere classified Medicine Biotechnology Chemical Sciences not elsewhere classified Immunology Cancer simple lubricant replenishment persistent unmet needs layer architecture consisting effectively suppressing adhesion covalently grafted polydimethylsiloxane compromise patient safety brush base layer allowing immediate restoration mechanically challenging conditions ex vivo </ endoscope cap designed disrupt procedural continuity results identify shield fouling lens fogging fouling conditions vitro </ cap surface visible range use snap systematically validated surgical workflow surgical models surface functionality superlubricious high sliding angle optical transmittance optical stability endoscopic visualization endoscopic surgery degrade visualization clinically relevant clarity interface biological contamination antifouling durability additional confirmation 10 °). Lens fogging and biological contamination are persistent unmet needs in endoscopic surgery that degrade visualization, disrupt procedural continuity, and compromise patient safety. To address these limitations, we have developed the superlubricious high-clarity interface for endoscopic lens defense cap (SHIELD-C), a single-use snap-on endoscope cap designed to maintain stable endoscopic visualization by forming a durable liquid–liquid interface on the cap surface. SHIELD-C employs a dual-layer architecture consisting of a covalently grafted polydimethylsiloxane (PDMS) brush base layer and an infused silicone oil top layer, forming a stable and optically transparent liquid–liquid interface. This configuration maintains high optical clarity (optical transmittance of >90% across the visible range) while effectively suppressing adhesion of blood and mucus (sliding angle of <10°). Importantly, the liquid interface enables rapid intraoperative recovery of surface functionality through simple lubricant replenishment, allowing immediate restoration of visual clarity without interrupting the surgical workflow. The antifouling durability as well as the optical stability of SHIELD-C were systematically validated through <i>in vitro</i> tests under chemically and mechanically challenging conditions with additional confirmation in clinically relevant <i>ex vivo</i> surgical models. These results identify SHIELD-C as a stable liquid–liquid interface cap that enhances the reliability and continuity of endoscopic visualization under lens-fouling conditions. 2026-07-01T00:00:00Z Dataset Media 10.1021/acsami.6c04312.s001 https://figshare.com/articles/media/Disposable_Endoscope_Cap_Maintaining_Clear_Surgical_Visualization_under_Fogging_and_Fouling/32635826 CC BY-NC 4.0