ArticleBiomaterials research2025
Repeatable Photoactive Stent-Based Catheter to Enhance Therapeutic Efficacy for Esophageal Carcinoma.
Article in Biomaterials research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
9 authors.
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Abstract
Localized photodynamic therapy (PDT) using a photoactive stent-based catheter involves the direct delivery of reactive oxygen species to the mucosa in esophageal carcinoma; however, the damaged mucosa recovers within 2 to 4 weeks, which considerably limits the clinical application of PDT. Here, we used aluminum(III) phthalocyanine chloride tetrasulfonic acid (AlPcS4) as a photosensitizer due to its excellent photochemical durability, low photobleaching, and high quantum yield and investigated whether repeated and periodic PDT via an AlPcS4-embedded stent-based catheter can provide sustained therapeutic efficacy. AlPcS4 was uniformly embedded in silicone membranes via coordination bonding to form a photoactive stent-based catheter. The membrane demonstrated excellent photostability and consistent singlet oxygen generation under near-infrared irradiation, as evidenced by a 67.2% decrease in 9,10-dimethylanthracene fluorescence intensity, even after 90 J cm
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Registered trials
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