Methylation-enhanced fluorescent dyes for highly sensitive detection of hypochlorous acid and biological imaging

January 1, 2026The Analyst

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Key Points

The research aims to enhance the fluorescence of dyes for the sensitive detection of hypochlorous acid (HClO) through methylation.
Utilized methylation to increase steric hindrance and lower reorganization energy of fluorescent dyes.
Assessed the impact on fluorescence intensity in in vivo imaging contexts.
Evaluated selective imaging applications for hypochlorous acid based on fluorescence enhancement.
Methylation significantly boosted fluorescence intensity compared to non-methylated dyes.
Achieved selective in vivo imaging of HClO with improved sensitivity and specificity.

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Demonstrates enhanced fluorescence for hypochlorous acid imaging, suggesting improved biological applications.

Methylation steric hindrance lowers HR factors and reorganization energy, boosting fluorescence and enabling selective in vivo HClO imaging.

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Chang et al. (2026) studied this question.

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