Prevalent intrinsic emission from nonaromatic amino acids and poly(amino acids)
文献类型：期刊论文
| 作者 | Chen, Xiaohong; Luo, Weijian; Ma, Huili; Peng, Qian; Yuan, Wang Zhang; Zhang, Yongming |
| 刊名 | SCIENCE CHINA-CHEMISTRY
 |
| 出版日期 | 2018-03-01 |
| 卷号 | 61期号:3页码:351-359 |
| 英文摘要 | Nonaromatic amino acids are generally believed to be nonemissive, owing to their lack of apparently remarkable conjugation within individual molecules. Here we report the intrinsic visible emission of nonaromatic amino acids and poly(amino acids) in concentrated solutions and solid powders. This unique and widespread luminescent characteristic can be well rationalized by the clustering-triggered emission (CTE) mechanism, namely the clustering of nonconventional chromophores (i.e. amino, carbonyl, and hydroxyl) and subsequent electron cloud overlap with simultaneous conformation rigidification. Such CTE mechanism is further supported by the single crystal structure analysis, from which 3D through space electronic communications are uncovered. Besides prompt fluorescence, room temperature phosphorescence (RTP) is also detected from the solids. Moreover, persistent RTP is observed in the powders of exampled poly(amino acids) of epsilon-poly-L-lysine (E >-PLL) after ceasing UV irradiation. These results not only illustrate the feasibility of employing the building blocks of nonaromatic amino acids in the exploration of new luminescent biomolecules, but also provide significant implications for the emissions of peptides and proteins at aggregated or crystalline states. Meanwhile, they may also shed lights on further understanding of autofluorescence from biological systems. |
| WOS记录号 | WOS:000427405000013 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/38734]  |
| 专题 | 化学研究所_其它 |
| 推荐引用方式 GB/T 7714 | Chen, Xiaohong,Luo, Weijian,Ma, Huili,et al. Prevalent intrinsic emission from nonaromatic amino acids and poly(amino acids)[J]. SCIENCE CHINA-CHEMISTRY,2018,61(3):351-359. |
| APA | Chen, Xiaohong,Luo, Weijian,Ma, Huili,Peng, Qian,Yuan, Wang Zhang,&Zhang, Yongming.(2018).Prevalent intrinsic emission from nonaromatic amino acids and poly(amino acids).SCIENCE CHINA-CHEMISTRY,61(3),351-359. |
| MLA | Chen, Xiaohong,et al."Prevalent intrinsic emission from nonaromatic amino acids and poly(amino acids)".SCIENCE CHINA-CHEMISTRY 61.3(2018):351-359. |
入库方式： OAI收割
来源：化学研究所
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