纳米结构发光胶束:用于感测硝基芳烃和硝胺炸药的高效“功能材料”

Photochem Pub Date : 2022-01-10 DOI:10.3390/photochem2010004
Shashikana Paria, Prasenjit Maity, Rafia Siddiqui, R. Patra, S. B. Maity, A. Jana
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引用次数: 3

摘要

发光胶束是应用超分子化学中广泛研究的分子支架。由于它们独特的组织超分子结构以及化学响应的物理和光学特征,这些是特别重要的。各种发光标签可以与这些两亲性胶束结合,以产生高效的发光探针,这些探针可以用作有毒和危险材料、生物成像、药物递送和运输等的“化学鼻”(传感器)。由于它们的两亲性和明确的重组自组装几何结构,这些纳米构建体是尺寸和形状互补的客体结合或感测特定分析物的理想候选者。报道了大量描述胶束荧光探针的文章,这些探针用于阳离子/阴离子传感、氨基酸和蛋白质传感、药物递送和化学传感。然而,这篇特别的综述文章批判性地总结了硝基芳烃(如三硝基甲苯(TNT)、三硝基苯(TNB)、三硝基苯酚(TNP)、二硝基苯(DNB)等)和硝胺炸药(如1,3,5-三硝基-1,3,5-三嗪,通常被称为“研究部门炸药”(RDX)、1,3,5,7-四硝基-1,3,5,7-四唑烷,通常被称为“高熔点炸药”(HMX)等)。深入了解这些自组装发光“功能材料”以及在爆炸分析物存在下的物理化学行为可能有助于设计下一代用于法医应用的智能纳米材料。这篇综述文章还将提供一个“最先进”的研究范围,涉及胶束-爆炸加合物,证明分子间电荷/电子转移(CT/ET)过程在主客体系统中运行。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Nanostructured Luminescent Micelles: Efficient “Functional Materials” for Sensing Nitroaromatic and Nitramine Explosives
Luminescent micelles are extensively studied molecular scaffolds used in applied supramolecular chemistry. These are particularly important due to their uniquely organized supramolecular structure and chemically responsive physical and optical features. Various luminescent tags can be incorporated with these amphiphilic micelles to create efficient luminescent probes that can be utilized as “chemical noses” (sensors) for toxic and hazardous materials, bioimaging, drug delivery and transport, etc. Due to their amphiphilic nature and well-defined reorganized self-assembled geometry, these nano-constructs are desirable candidates for size and shape complementary guest binding or sensing a specific analyte. A large number of articles describing micellar fluorogenic probes are reported, which are used for cation/anion sensing, amino acid and protein sensing, drug delivery, and chemo-sensing. However, this particular review article critically summarizes the sensing application of nitroaromatic (e.g., trinitrotoluene (TNT), trinitrobenzene (TNB), trinitrophenol (TNP), dinitrobenzene (DNB), etc.) and nitramine explosives (e.g., 1,3,5-trinitro-1,3,5-triazinane, trivially named as “research department explosive” (RDX), 1,3,5,7-tetranitro-1,3,5,7-tetrazocane, commonly known as “high melting explosive” (HMX) etc.). A deeper understanding on these self-assembled luminescent “functional materials” and the physicochemical behavior in the presence of explosive analytes might be helpful to design the next generation of smart nanomaterials for forensic applications. This review article will also provide a “state-of-the-art” coverage of research involving micellar–explosive adducts demonstrating the intermolecular charge/electron transfer (CT/ET) process operating within the host–guest systems.
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