Optimization of bright, highly flexible, and humidity insensitive porphyrin-based oxygen-sensing materials

摘要: There is a strong demand for reliable oxygen sensors in the fields of fitness tracking, health monitoring, and medical diagnostics. Recently, oxygen-sensing materials based on phosphorescence quenching by have attracted interest due to their high sensitivity, rapid response, suitability directly imaging distribution large tissue areas. Here we tested different compositions metalloporphyrins support matrices identified optimal that can be applied devices. Our results showed pivaloyl-terminated metalloporphyrin embedded poly(propyl methacrylate) (PPMA) exhibits highest porphyrin emission brightness oxygen-dependent intensity changes easily visualized even eye under ambient light. In vivo studies revealed our PPMA-based, highly breathable films used non-invasively detect oxygenation rabbit model, promising step integration into wearable addition, it was found an alkyne-terminated tetraethyl orthosilicate (TEOS) shows most response time. The detailed composition exploration material characterization described this study provides good resource towards developing more versatile