关键词: amino acids aminoglycosides biogenic amines displacement assay fluorescent sensor polythiophene solid-state emission

来  源:   DOI:10.3390/s24134245   PDF(Pubmed)

Abstract:
Exploring new methodologies for simple and on-demand methods of manipulating the emission and sensing ability of fluorescence sensor devices with solid-state emission molecular systems is important for realizing on-site sensing platforms. In this regard, although conjugated polymers (CPs) are some of the best candidates for preparing molecular sensor devices owing to their luminescent and molecular recognition properties, the development of CP-based sensor devices is still in its early stages. In this study, we herein propose a novel strategy for preparing a chemical stimuli-responsive solid-state emission system based on supramacromolecular assembly-induced emission enhancement (SmAIEE). The system was spontaneously developed by mixing only the component polymers (i.e., polythiophene and a transient cross-linking polymer). The proposed strategy can be applied to the facile preparation of molecular sensor devices. The analyte-induced fluorescent response of polythiophene originated from the dynamic displacement of the transient cross-linker in the polythiophene ensemble and the generation of the polythiophene-analyte complex. Our successful demonstration of the spontaneous preparation of the fluorescence sensor system by mixing two component polymers could lead to the development of on-site molecular analyzers including the determination of multiple analytes.
摘要:
探索用于操纵具有固态发射分子系统的荧光传感器器件的发射和传感能力的简单和按需方法的新方法对于实现现场传感平台很重要。在这方面,尽管共轭聚合物(CP)由于其发光和分子识别特性而成为制备分子传感器设备的最佳候选者,基于CP的传感器设备的发展仍处于早期阶段。在这项研究中,我们在此提出了一种基于超分子组装诱导的发射增强(SmAIEE)制备化学刺激响应固态发射系统的新策略。通过仅混合组分聚合物(即,聚噻吩和瞬时交联聚合物)。所提出的策略可以应用于分子传感器器件的容易制备。聚噻吩的分析物诱导的荧光响应源于聚噻吩整体中瞬时交联剂的动态位移和聚噻吩-分析物复合物的产生。我们成功地证明了通过混合两种组分聚合物自发制备荧光传感器系统,这可能导致现场分子分析仪的开发,包括多种分析物的测定。
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