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Electrospinning chiral fluorescent nanofibers from helical polyacetylene: preparation and enantioselective recognition ability
Nanoscale Advances ( IF 4.6 ) Pub Date : 2020/02/21 , DOI: 10.1039/d0na00127a Jiali Yang 1, 2 , Pengpeng Li 1, 2 , Biao Zhao 2 , Kai Pan 2 , Jianping Deng 1, 2
Nanoscale Advances ( IF 4.6 ) Pub Date : 2020/02/21 , DOI: 10.1039/d0na00127a Jiali Yang 1, 2 , Pengpeng Li 1, 2 , Biao Zhao 2 , Kai Pan 2 , Jianping Deng 1, 2
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Chirality is ubiquitous in nature and closely related to the pharmacological effects of chiral drugs. Therefore, chiral recognition of molecular enantiomers becomes an important research theme. Fluorescence detection is highly sensitive and fast but has achieved only limited success in enantiomeric detection due to the lack of powerful chiral fluorescence detection materials. In this paper, a novel chiral fluorescent probe material, i.e. a chiral fluorescent nanofiber membrane, is prepared from chiral helical substituted polyacetylene by the electrospinning technique. The SEM images demonstrate the success in fabricating continuous, uniform nanofibers with a diameter of about 100 nm. Circular dichroism spectra show that the nanofibers exhibit fascinating optical activity. One of the enantiomeric chiral fluorescent membranes has chiral fluorescence recognition effects towards alanine and chiral phenylethylamine, while the other enantiomeric membrane does not. The prepared chiral fluorescent nano-materials are expected to find various applications in chirality-related fields due to their advantages such as chirality, fluorescence, and a high specific surface area. The established preparation approach also promises a potent and versatile platform for developing advanced nanofiber materials from conjugated polymers.
中文翻译：
螺旋聚乙炔静电纺丝手性荧光纳米纤维的制备和对映选择性识别能力
手性在自然界中无处不在，与手性药物的药理作用密切相关。因此，分子对映异构体的手性识别成为重要的研究课题。荧光检测灵敏度高、速度快，但由于缺乏强大的手性荧光检测材料，对映体检测的成功率有限。本文提出了一种新型手性荧光探针材料，即一种手性荧光纳米纤维膜，由手性螺旋取代聚乙炔通过静电纺丝技术制备而成。SEM 图像表明成功地制造了直径约为 100 nm 的连续、均匀的纳米纤维。圆二色光谱显示纳米纤维表现出迷人的光学活性。其中一种对映体手性荧光膜对丙氨酸和手性苯乙胺具有手性荧光识别作用，而另一种对映体膜则没有。所制备的手性荧光纳米材料由于具有手性、荧光性和高比表面积等优点，有望在手性相关领域获得各种应用。
更新日期：2020-03-19
中文翻译：
螺旋聚乙炔静电纺丝手性荧光纳米纤维的制备和对映选择性识别能力
手性在自然界中无处不在，与手性药物的药理作用密切相关。因此，分子对映异构体的手性识别成为重要的研究课题。荧光检测灵敏度高、速度快，但由于缺乏强大的手性荧光检测材料，对映体检测的成功率有限。本文提出了一种新型手性荧光探针材料，即一种手性荧光纳米纤维膜，由手性螺旋取代聚乙炔通过静电纺丝技术制备而成。SEM 图像表明成功地制造了直径约为 100 nm 的连续、均匀的纳米纤维。圆二色光谱显示纳米纤维表现出迷人的光学活性。其中一种对映体手性荧光膜对丙氨酸和手性苯乙胺具有手性荧光识别作用，而另一种对映体膜则没有。所制备的手性荧光纳米材料由于具有手性、荧光性和高比表面积等优点，有望在手性相关领域获得各种应用。
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