Aggregation/assembly induced emission based on silk fibroin-templated fluorescent copper nanoclusters for "turn-on" detection of s2-
文献类型：期刊论文
| 作者 | Zhang, Guomei1; Wang, Ruru1; Shi, Lihong1; Zhang, Caihong1; Zhang, Yan1; Zhou, Ying1; Dong, Chuan1; Li, Gao2; Shuang, Shaomin1 |
| 刊名 | Sensors and actuators b-chemical
 |
| 出版日期 | 2019-01-15 |
| 卷号 | 279页码:361-368 |
| 关键词 | Aggregation/assembly induced emission enhance (aiee) Silk fibroin Copper nanoclusters Sulfide ion |
| ISSN号 | 0925-4005 |
| DOI | 10.1016/j.snb.2018.09.100 |
| 通讯作者 | Zhang, guomei(gmzhang@sxu.edu.cn) ; Shuang, shaomin(smshuang@sxu.edu.cn) |
| 英文摘要 | Herein, we observed that the simple one-pot green method synthesized fluorescent silk fibroin (sf) protected copper nanoclusters (cuncs) possessing unique aggregation/assembly induced emission enhance (aiee) characteristics with the assistance of sulfide ion in aqueous solution. the interaction of cuncs with s2- was further investigated by fluorescence spectroscopy, uv-vis absorption spectroscopy, x-ray photoelectron spectroscopy (xps), and fourier transform infrared (ftir) spectroscopy. it demonstrated that the s2- can induced the ultrasmall cu nanoclusters of ca. 2.8 nm orderly assembled to large nanoparticles of uniform rod like with the size (47 +/- 2) x (15 +/- 2) nm by transmission electron microscopy (tem). and the fluorescence intensity of the dispersed cuncs was increased with the increase of absolute quantum yield from 1.6% to 4.9%. more importantly, the assembly large cu nanoparticles are also monodispersed in size and morphology, which provides a distinctive advantage for analytical applications. based on this, sf@cuncs can be developed into a practical nanosensor for "turn-on" luminescence detection for s2- with a highly sensitive and selectivity. the linear response with the s2- concentrations range from 5.0 mu m to 110.0 mu m and detection limit was 0.286 mu m. we demonstrated this assembled nanostructure as a powerful analytical platform for s2- detection. |
| WOS关键词 | HYDROGEN-SULFIDE DETECTION ; CU NANOCLUSTERS ; GOLD NANOCLUSTERS ; SELECTIVE VISUALIZATION ; METAL NANOCLUSTERS ; HYPOCHLOROUS ACID ; AG NANOCLUSTERS ; DRUG-DELIVERY ; LIVING CELLS ; LIVE CELLS |
| WOS研究方向 | Chemistry ; Electrochemistry ; Instruments & Instrumentation |
| WOS类目 | Chemistry, Analytical ; Electrochemistry ; Instruments & Instrumentation |
| 语种 | 英语 |
| WOS记录号 | WOS:000449373800045 |
| 出版者 | ELSEVIER SCIENCE SA |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2373098 |
| 专题 | 大连化学物理研究所 |
| 通讯作者 | Zhang, Guomei; Shuang, Shaomin |
| 作者单位 | 1.Shanxi Univ, Sch Chem & Chem Engn, Inst Environm Sci, Taiyuan 030006, Shanxi, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Guomei,Wang, Ruru,Shi, Lihong,et al. Aggregation/assembly induced emission based on silk fibroin-templated fluorescent copper nanoclusters for "turn-on" detection of s2-[J]. Sensors and actuators b-chemical,2019,279:361-368. |
| APA | Zhang, Guomei.,Wang, Ruru.,Shi, Lihong.,Zhang, Caihong.,Zhang, Yan.,...&Shuang, Shaomin.(2019).Aggregation/assembly induced emission based on silk fibroin-templated fluorescent copper nanoclusters for "turn-on" detection of s2-.Sensors and actuators b-chemical,279,361-368. |
| MLA | Zhang, Guomei,et al."Aggregation/assembly induced emission based on silk fibroin-templated fluorescent copper nanoclusters for "turn-on" detection of s2-".Sensors and actuators b-chemical 279(2019):361-368. |
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来源：大连化学物理研究所
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