基于四臂可折叠酞菁分子的π-π堆积力自组装纳米点致动器及其超灵敏分子识别,Nano Letters

当前位置： X-MOL 学术 › Nano Lett. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

基于四臂可折叠酞菁分子的π-π堆积力自组装纳米点致动器及其超灵敏分子识别
Nano Letters ( IF 9.6 ) Pub Date : 2022-07-22 , DOI: 10.1021/acs.nanolett.2c02244
Liu Hu _{1,

2} , Huanghuang Chen _{1,

3} , Meng Ju _{1,

3} , Aiqin Hou _{1,

3} , Kongliang Xie ₁ , Aiqin Gao ₁

Affiliation

将智能分子和智能纳米材料设计为分子机器在纳米科学领域变得越来越重要。在这里，我们报告了一种基于四臂可折叠酞菁分子的纳米点致动器，该致动器通过 π-π 堆叠力具有可变荧光。组装的纳米点具有三维分子空间结构和多个超分子相互作用。纳米点的臂可以智能地折叠和打开，以响应环境分子刺激，例如天然植物含羞草，这可能导致多种可变的荧光发射。纳米点在分子水平上对生物分子甲状腺素高度敏感。纳米点的准确分子识别和多变的荧光转换归因于多个超分子相互作用，包括光诱导电子转移 (PET)、分子内荧光共振能量转移 (FRET) 和纳米点的 π-π 堆叠，从而产生了一种智能的“带折叠臂的纳米点机器”。具有可变荧光的自组装纳米点致动器在先进智能材料领域具有潜在应用。

"点击查看英文标题和摘要"

Self-Assembled Nanodot Actuator with Changeable Fluorescence by π–π Stacking Force Based on a Four-Armed Foldable Phthalocyanine Molecule and Its Supersensitive Molecular Recognition

Designing intelligent molecules and smart nanomaterials as molecular machines is becoming increasingly important in the nanoscience fields. Herein, we report a nanodot actuator with changeable fluorescence by π–π stacking force based on a four-armed foldable phthalocyanine molecule. The assembled nanodot possessed a three-dimensional molecular space structure and multiple supramolecular interactions. The arms of the nanodot could fold and open intelligently in response to environmental molecular stimuli such as natural plant mimosa, which could lead to multiple variable fluorescence emissions. The nanodot was highly sensitive to the biomolecule thyroxine at the molecular level. The accurate molecular recognition and the changeable fluorescence conversion of the nanodot were attributed to multiple supramolecular interactions, including photoinduced electron transfer (PET), intramolecular fluorescence resonance energy transfer (FRET), and π–π stacking of the nanodots, resulting in an intelligent “nanodot machine with folding arms”. The self-assembled nanodot actuators with changeable fluorescence have potential applications in advanced intelligent material fields.

更新日期：2022-07-22

点击分享查看原文

点击收藏

阅读更多本刊新发论文本刊介绍/投稿指南