Zucchero Anthony J, Shiels Rebecca A, McGrier Psaras L, To M Alicia, Jones Christopher W, Bunz Uwe H F
School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332, USA.
Chem Asian J. 2009 Feb 2;4(2):262-9. doi: 10.1002/asia.200800316.
Silica scaffolding: By employing functionalized mesoporous SBA-15 silica, novel fluorescent cruciform-silica hybrid materials are generated which preserve the desirable solution properties of cruciforms in the solid state for potential use in sensory schemes. Preserving the solution properties of functional fluorophores upon incorporation into solid state sensory schemes remains a significant challenge. To address this concern, a silica scaffold was employed to support functional fluorophores in the solid state. Herein, we report an effort to support 1,4-distyryl-2,5-bisarylethynylbenzene cruciforms (XFs) using functionalized mesoporous silica particles. By employing surface-functionalized mesoporous SBA-15 silica, novel fluorescent cruciform-silica hybrid materials are generated which retain the desirable solution properties of cruciforms in the solid state. Organic surface functionalities, such as acidic, basic, and hydrophobic groups employed on the silica scaffold, modulate the observed emissions of the resulting solid state materials. The potential of these XF-silica hybrid materials to display sensory responses to representative vapor-phase analytes is demonstrated.
通过使用功能化的介孔SBA - 15二氧化硅，生成了新型荧光十字形 - 二氧化硅杂化材料，这些材料在固态下保留了十字形化合物所需的溶液性质，可用于潜在的传感方案。将功能性荧光团掺入固态传感方案时保持其溶液性质仍然是一个重大挑战。为了解决这一问题，采用二氧化硅支架在固态下支撑功能性荧光团。在此，我们报告了一项使用功能化介孔二氧化硅颗粒支撑1,4 - 二苯乙烯基 - 2,5 - 双芳基乙炔基苯十字形化合物（XF）的工作。通过使用表面功能化的介孔SBA - 15二氧化硅，生成了新型荧光十字形 - 二氧化硅杂化材料，这些材料在固态下保留了十字形化合物所需的溶液性质。二氧化硅支架上使用的有机表面官能团，如酸性、碱性和疏水性基团，调节所得固态材料的观察到的发射。证明了这些XF - 二氧化硅杂化材料对代表性气相分析物显示传感响应的潜力。
