| 查看: 1666 | 回复: 8 | |||
| 当前只显示满足指定条件的回帖，点击这里查看本话题的所有回帖 | |||
zhangkun232至尊木虫 (著名写手)
|
[交流]
绿色荧光蛋白（GFP）以及AIE聚集荧光增强效应的发光机制已有2人参与
|
||
|
最近，我们在绿色荧光蛋白（gfp）以及aie聚集荧光增强效应的发光机制方面取得了突破性的研究进展，提出了完全不同于传统的理论模型来解释他们的发光机制 ,希望可以引起大家更多的关注和交流。论文连接：https://pubs.acs.org/doi/10.1021/acsphyschemau.1c00020 美国化学会官方的详细推送：https://mp.weixin.qq.com/s/wrxq55hel0lok4op3mclvg 论文题目：structural water molecules confined in soft and hard nanocavities as bright color emitters jiafeng zhou, taiqun yang, bo peng, bingqian shan, meng ding, and kun zhang* abstract molecules confined in the nanocavity and nanointerface exhibit rich, unique physicochemical properties, e.g., the chromophore in the β-barrel can of green fluorescent protein (gfp) exhibits tunable bright colors. however, the physical origin of their photoluminescence (pl) emission remains elusive. to mimic the microenvironment of the gfp protein scaffold at the molecule level, two groups of nanocavities were created by molecule self-assembly using organic chromophores and by organic functionalization of mesoporous silica, respectively. we provide strong evidence that structural water molecules confined in these nanocavities are color emitters with a universal formula of {x+·(oh╟·h2o)·(h2o)n−1}, in which x is hydrated protons (h3o+) or protonated amino (nh3+) groups as an anchoring point, and that the efficiency of pl is strongly dependent on the stability of the main emitter centers of the structural hydrated hydroxide complex (oh╟·h2o), which is a key intermediate to mediate electron transfer dominated by proton transfer at confined nanospace. further controlled experiments and combined characterizations by time-resolved steady-state and ultrafast transient optical spectroscopy unveil an unusual multichannel radiative and/or nonradiative mechanism dominated by quantum transient states with a distinctive character of topological excitation. the finding of this work underscores the pivotal role of structurally bound h2o in regulating the pl efficiency of aggregation-induced emission luminogens and gfp. [ last edited by zhangkun232 on 2021-11-6 at 09:41 ] [ Last edited by zhangkun232 on 2021-11-6 at 09:43 ] |
回复此楼» 猜你喜欢
24考博孤注一掷，寄在了复试，但是还是想上一个学
已经有41人回复
-
P4VP的GPC测试
已经有3人回复
-
金属材料论文润色/翻译怎么收费?
已经有92人回复
-
求购商用高炉煤气精脱硫水解催化剂
已经有37人回复
-
中国科学技术大学苏州独墅会议，报销国际差旅，诚邀您的参加！
已经有0人回复
-
中国科学技术大学@苏州·独墅会议，报销国际差旅，诚邀您的参加！
已经有0人回复
-
CV测试为什么非常不稳定
已经有14人回复
-
中山大学孙逸仙纪念医院潘越教授团队招聘博士后（年薪45万），助理实验师
已经有16人回复
-
北京求能测金属粘度的地方
已经有4人回复
-
金属粘度测量
已经有0人回复
zhangkun232
至尊木虫 (著名写手)
- 应助: 24 (小学生)
- 金币: 20615.9
- 红花: 7
- 帖子: 2182
- 在线: 233.6小时
- 虫号: 374725
- 注册: 2007-05-18
- 性别: GG
- 专业: 催化化学
6楼2021-11-06 09:40:28
zhangkun232
至尊木虫 (著名写手)
- 应助: 24 (小学生)
- 金币: 20615.9
- 红花: 7
- 帖子: 2182
- 在线: 233.6小时
- 虫号: 374725
- 注册: 2007-05-18
- 性别: GG
- 专业: 催化化学
2楼2021-10-26 09:30:14
susanf
金虫 (小有名气)
- 应助: 4 (幼儿园)
- 金币: 1544.9
- 红花: 10
- 帖子: 151
- 在线: 27.3小时
- 虫号: 2487497
- 注册: 2013-05-29
- 性别: MM
- 专业: 胶体与界面化学
3楼2021-10-26 15:29:23
zhangkun232
至尊木虫 (著名写手)
- 应助: 24 (小学生)
- 金币: 20615.9
- 红花: 7
- 帖子: 2182
- 在线: 233.6小时
- 虫号: 374725
- 注册: 2007-05-18
- 性别: GG
- 专业: 催化化学
|
这篇文章也揭示了低维量子点的发光机制，如金属团簇、碳点以及半导体量子点等。几篇代表性文章的链接如下： （１）https://www.frontiersin.org/arti ... em.2021.756993/full （２）https://pubs.rsc.org/en/content/articlelanding/2021/nr/d1nr02389f （３）https://www.mdpi.com/2079-4991/10/2/261 （４）https://www.nature.com/articles/s42004-019-0233-1 |
4楼2021-10-30 09:23:36
10