Synthesis of Peptide-Based Hybrid Nanobelts with Enhanced Color Emission by Heat Treatment or Water Induction.
Synthesis of Peptide-Based Hybrid Nanobelts with Enhanced Color Emission by Heat Treatment or Water Induction.
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DOI：
10.1002/chem.201500580
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发表时间：
2015-06
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影响因子：
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通讯作者：
Xingcen Liu;Pengli Zhu;J. Fei;Jie Zhao;Xuehai Yan;Junbai Li
中科院分区：
文献类型：
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作者：
Xingcen Liu;Pengli Zhu;J. Fei;Jie Zhao;Xuehai Yan;Junbai Li
我们证明，通过通用、简单且高效的共组装过程，将无机镧系元素离子（Tb（3+））或有机染料分子原位封装到二苯丙氨酸（FF）有机凝胶中，生成具有一系列有色发射的基于肽的杂化纳米带。在光敏剂（水杨酸）存在的情况下，有机凝胶可以作为优秀的分子供体支架来研究 Tb(3+) 的 FRET。更重要的是，热处理或水诱导引发了从纳米纤维到纳米带的形态转变，随后促进了客体分子参与FF组装，并增强了复合有机凝胶的稳定性和光致发光发射。
We demonstrate that an inorganic lanthanide ion (Tb(3+)) or organic dye molecules were encapsulated in situ into diphenylalanine (FF) organogels by a general, simple, and efficient co-assembly process, which generated peptide-based hybrid nanobelts with a range of colored emissions. In the presence of a photosensitizer (salicylic acid), the organogel can serve as an excellent molecular-donor scaffold to investigate FRET to Tb(3+). More importantly, heat treatment or water induction instigated a morphology transition from nanofibers to nanobelts, after which the participation of guest molecules in the FF assembly was promoted and the stability and photoluminescence emission of the composite organogels were enhanced.