Önal Emel, Saß Stephan, Hurpin Jeanne, Ertekin Kadriye, Topal Sevinc Zehra, Kumke Michael U, Hirel Catherine
Faculty of Science, Department of Chemistry, Gebze Technical University, Gebze, 41400, Kocaeli, Turkey.
Department of Physical Chemistry, Institute of Chemistry, University of Potsdam, 14476, Potsdam, Germany.
J Fluoresc. 2017 May;27(3):861-868. doi: 10.1007/s10895-016-2022-x. Epub 2017 Jan 14.
High oxygen permeable [poly(TMSP)] nanofibers incorporating porphyrin macrocycle as luminescence indicators were prepared by electrospinning technique. The porphyrins involves were modified by i) introducing phenylacetylide substituents on the para position of the phenyl moieties and ii) varying the metal centers [Pt(II) or Pd(II)] of the meso-tetrakisphenylporphyrins. A set of nanofibers; (Pt-TPP)NF, (Pd-TPP)NF, (Pt-TPA)NF and (Pd-TPA)NF were obtained to study their structure-activity relationship toward oxygen. The lifetime-based technique was privileged to take advantage of their long-lived phosphorescent properties. A two-fold enhancement was observed for (Pt-TPA)NF and (Pd-TPA)NF compared to (Pt-TPP)NF and (Pd-TPP)NF demonstrating the positive effect of the phenylacetylide moieties on the lifetime. Also, Silver nanoparticles were included in nanofibers to investigate their influence on lifetime-based oxygen sensitivity, showing that the presence of AgNPs only affects (Pd-TPA)NF.
采用静电纺丝技术制备了以卟啉大环作为发光指示剂的高氧渗透性[聚（三甲基硅基丙炔）]纳米纤维。所涉及的卟啉通过以下方式进行修饰：i）在苯基部分的对位引入苯乙炔取代基；ii）改变中位四（苯基）卟啉的金属中心[铂（II）或钯（II）]。获得了一组纳米纤维：（铂-四苯基卟啉）纳米纤维、（钯-四苯基卟啉）纳米纤维、（铂-三苯基乙炔基卟啉）纳米纤维和（钯-三苯基乙炔基卟啉）纳米纤维，以研究它们对氧的构效关系。基于寿命的技术利用了它们长寿命磷光特性的优势。与（铂-四苯基卟啉）纳米纤维和（钯-四苯基卟啉）纳米纤维相比，（铂-三苯基乙炔基卟啉）纳米纤维和（钯-三苯基乙炔基卟啉）纳米纤维的寿命提高了两倍，这表明苯乙炔部分对寿命有积极影响。此外，在纳米纤维中加入银纳米颗粒以研究它们对基于寿命的氧敏感性的影响，结果表明银纳米颗粒的存在仅影响（钯-三苯基乙炔基卟啉）纳米纤维。
