基于咔唑的胶体稳定荧光纳米聚集体的研制。
Development of colloidally stable carbazole-based fluorescent nanoaggregates.
作者信息
Svechkarev Denis, Kyrychenko Alexander, Payne William M, Mohs Aaron M
机构信息
Department of Pharmaceutical Sciences, University of Nebraska Medical Center, 986858 Nebraska Medical Center, Omaha, NE 68198-6858, United States.
Institute for Chemistry, V. N. Karazin Kharkiv National University, 4 Svobody Square, 61022 Kharkiv, Ukraine.
出版信息
J Photochem Photobiol A Chem. 2018 Feb 1;352:55-64. doi: 10.1016/j.jphotochem.2017.10.042. Epub 2017 Oct 28.
Fluorescent nanomaterials require high colloidal stability for effective use in imaging and sensing applications. We herein report the synthesis of carbazole-based organic fluorescent nanoaggregates, and demonstrate the superior colloidal stability of alkyl-substituted dye aggregates over their non-alkylated analogs. The role of alkyl chains in self-assembly and stability of such nanoaggregates is discussed based on both experimental and molecular dynamics simulation data, and spectral characteristics of the precursor dyes and their aggregates are described. The obtained results provide new insights on development of colloidally stable organic fluorescent nanomaterials with low polydispersity.
荧光纳米材料在成像和传感应用中有效使用需要高胶体稳定性。我们在此报告基于咔唑的有机荧光纳米聚集体的合成，并证明烷基取代染料聚集体比其未烷基化类似物具有更优异的胶体稳定性。基于实验和分子动力学模拟数据讨论了烷基链在这种纳米聚集体的自组装和稳定性中的作用，并描述了前体染料及其聚集体的光谱特征。所得结果为开发具有低多分散性的胶体稳定有机荧光纳米材料提供了新的见解。
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