The integration of hybridization chain reaction (HCR) with fluorogenic silver nanoclusters (AgNCs) in an aggregation induced emission (AIE)-based nanosensor for sex determination and its forensic application

Bazzi, Fatima; Ebrahimi-Hoseinzadeh, Bahman; Sangachin, E. Ahmadi; Hosseini, Morteza

doi:10.1016/j.microc.2022.108188

Cited by 7 publications

References 86 publications

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Aggregation‐Induced Emission Properties of Atypical Aliphatic‐Chain‐Linked Siloxanes‐Containing Phosphonate Esters

Yang,

Shi

et al. 2024

Chemistry An Asian Journal

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Phosphonate compounds have been proposed as atypical chromophores, but their luminescence properties, especially in combination with flexible aliphatic chains, remain underexplored. In this study, we have synthesized a series of novel siloxane‐containing phosphonate esters as organofluorophores through a catalyst‐free, one‐pot Kabachnik‐Fields (K‐F) reaction. This reaction involved acetone, cyclohexanone, or cyclopentanone, with siloxanes containing aliphatic amines and phosphonate diesters as reactants. The resulting compounds exhibit blue fluorescence. Fluorescence tests confirmed that all synthesized materials display aggregation‐induced emission (AIE) phenomena, with some also exhibiting upconversion. Notably, the luminescence intensity can be modulated by altering the steric hindrance near the phosphonate ester group. Mechanistic studies indicate that the strong blue photoluminescence observed in the aggregated state results from restricted intramolecular motion (RIM) and spatial electronic delocalization. These findings demonstrate that even simple phosphonates, when combined with flexible aliphatic chains, can exhibit significant AIE luminescence properties.

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