Post‐Synthetic Functionalization of Covalent Organic Frameworks for Highly Sensitive and Selective Detection of Plasticizers

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Octyl-COF-SH@Ag enables rapid detection of phthalic acid esters at nanomolar concentrations, achieving remarkable sensitivity.
The hybrid material enhances hot spot formation and π–π interactions, resulting in effective surface-enhanced Raman scattering.
DFT calculations confirm the selective detection of dimethyl phthalate over dibutyl phthalate, showcasing material specificity.
The incorporation of hydrophobicity through octyl chains enhances analyte adsorption, improving detection capabilities.

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Hybrid material Octyl-COF-SH@Ag demonstrates exceptional sensitivity for plasticizers, indicating effective SERS application.

Aastha et al. (2025) studied this question.

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