热处理及水诱导二苯丙氨酸基多色发光复合纳米带的组装
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- 英文论文题名：Synthesis of Peptide-Based Hybrid Nanobelts with Enhanced Color Emission by Heat Treatment or Water Induction
- 论文作者：刘星岑 ; 费进波 ; 崔巍 ; 孙冰冰 ; 董伟光 ; 崔光晨 ; 李峻柏
- 英文论文作者：Xingcen Liu ; Jinbo Fei ; Wei Cui ; Bingbing Sun ; Weiguang Dong ; Guangchen Cui ; Junbai Li ; Institute of Chemistry ; Chinese Academy of Sciences
- 年：2016
- 作者机构：中国科学院化学研究所;
- 论文关键词：自组装 ; 二苯丙氨酸 ; 有机凝胶 ; 纳米带 ; 荧光
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第三十一分会：胶体与界面化学
- 语种：中文
- 分类号：O648.17;TB383.1
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第三十一分会 ; 胶体与界面化学
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：141k
- 原文格式：D
- 会议级别：全国
摘要
本工作中向二苯丙氨酸(FF)的甲苯凝胶中掺入Tb~(3+)/水杨酸(SA)或有机染料制备复合有机凝胶,因其稳定性降低,对其进行热处理以及水处理来提高凝胶的稳定性。处理后的凝胶区别于纯甲苯凝胶的纤维结构,而呈现纳米带状结构。掺杂后凝胶完成了FF到SA再到Tb~(3+)的荧光能量转移,经过处理,其荧光能量转移效率增加了200%以上,并且在紫外下有绿色特征发光。随后又掺杂了几种染料分子构建多色发光的复合有机凝胶体系,既保持了FF的结构,又赋予了它荧光发光性质。
We demonstrate that an inorganic lanthanide ion(Tb~(3+)) or organic dye molecules were encapsulated into diphenylalanine(FF) organogels by a general,simple,and high efficient co-assembly process,which generated peptide-based hybrid nanobelts with a range of colored emissions.In particular,for the organogels containing salicylic acid and Tb~(3+),FF fibers acted as a matrix and as efficient photosensitizers that could remarkably enhance the photoluminescence emission of the lanthanide ion by energy transfer.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.
We demonstrate that an inorganic lanthanide ion(Tb~(3+)) or organic dye molecules were encapsulated into diphenylalanine(FF) organogels by a general,simple,and high efficient co-assembly process,which generated peptide-based hybrid nanobelts with a range of colored emissions.In particular,for the organogels containing salicylic acid and Tb~(3+),FF fibers acted as a matrix and as efficient photosensitizers that could remarkably enhance the photoluminescence emission of the lanthanide ion by energy transfer.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.
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