Host–guest interactions and controllable capture and release of proteins based on cationic perylene bisimides

2017 ◽  
Vol 53 (14) ◽  
pp. 2241-2244 ◽  
Author(s):  
Qi Xu ◽  
Jia-Li Wang ◽  
Ya-Li Luo ◽  
Juan-Juan Li ◽  
Ke-Rang Wang ◽  
...  

A system of controllable capture and release of protein was constructed by multiple, interconnected supramolecular binding modules based on lactose modified mono-cationic perylene bisimide derivatives, cucurbit[8]uril (CB[8]), 1-adamantanamine (ADA) and peanut agglutinin (PNA) lectins.

2019 ◽  
Author(s):  
Emily R. Draper ◽  
Liam Wilbraham ◽  
Dave J. Adams ◽  
Matthew Wallace ◽  
Martijn Zwijnenburg

We use a combination of computational and experimental techniques to study the self-assembly and gelation of water-soluble perylene bisimides derivatised at the imide position with an amino acid. Specifically, we study the likely structure of self-assembled aggregates of the alanine-functionalised perylene bisimide (PBI-A) and the thermodynamics of their formation using density functional theory and predict the UV-vis spectra of such aggregates using time-dependent density functional theory. We compare these predictions to experiments in which we study the evolution of the UV-Vis and NMR spectra and rheology of alkaline PBI-A solutions when gradually decreasing the pH. Based on the combined computational and experimental results, we show that PBI-A self-assembles at all pH values but that aggregates grow in size upon protonation. Gelation is driven not by aggregate growth but reduction of the aggregation surface-charge and a decrease in the colloidal stability of the aggregation with respect to agglomeration.


Nanoscale ◽  
2019 ◽  
Vol 11 (34) ◽  
pp. 15917-15928 ◽  
Author(s):  
Emily R. Draper ◽  
Liam Wilbraham ◽  
Dave J. Adams ◽  
Matthew Wallace ◽  
Ralf Schweins ◽  
...  

We use a combination of computational and experimental techniques to study the self-assembly and gelation of amino-acid functionalised water-soluble perylene bisimides.


2015 ◽  
Vol 51 (92) ◽  
pp. 16530-16533 ◽  
Author(s):  
Martin Weiser ◽  
Hans-Achim Wagenknecht

Three differently bay-substituted perylene bisimides together with the conventional unsubstituted chromophore were synthetically incorporated as homodimers in DNA double strands and undergo spontaneous strand exchange if mixed together.


2017 ◽  
Vol 5 (16) ◽  
pp. 7555-7563 ◽  
Author(s):  
Michael C. Nolan ◽  
James J. Walsh ◽  
Laura L. E. Mears ◽  
Emily R. Draper ◽  
Matthew Wallace ◽  
...  

We show the importance of the self-assembly of a perylene bisimide on its photocatalytic activity.


RSC Advances ◽  
2015 ◽  
Vol 5 (50) ◽  
pp. 39973-39977 ◽  
Author(s):  
Wenqiang Zhang ◽  
Shu Zhong ◽  
Li Nian ◽  
Yulan Chen ◽  
Zengqi Xie ◽  
...  

Nanorods and nanoparticles of perylene bisimides (PBI-1) were prepared and applied as cathode interlayer in organic photovoltaic devices. The device performance showed important relation with the morphology of the interlayer.


2019 ◽  
Author(s):  
Emily R. Draper ◽  
Liam Wilbraham ◽  
Dave J. Adams ◽  
Matthew Wallace ◽  
Martijn Zwijnenburg

We use a combination of computational and experimental techniques to study the self-assembly and gelation of water-soluble perylene bisimides derivatised at the imide position with an amino acid. Specifically, we study the likely structure of self-assembled aggregates of the alanine-functionalised perylene bisimide (PBI-A) and the thermodynamics of their formation using density functional theory and predict the UV-vis spectra of such aggregates using time-dependent density functional theory. We compare these predictions to experiments in which we study the evolution of the UV-Vis and NMR spectra and rheology of alkaline PBI-A solutions when gradually decreasing the pH. Based on the combined computational and experimental results, we show that PBI-A self-assembles at all pH values but that aggregates grow in size upon protonation. Gelation is driven not by aggregate growth but reduction of the aggregation surface-charge and a decrease in the colloidal stability of the aggregation with respect to agglomeration.


2018 ◽  
Vol 54 (78) ◽  
pp. 10977-10980 ◽  
Author(s):  
Emily R. Draper ◽  
Matthew Wallace ◽  
Dirk Honecker ◽  
Dave J. Adams

Directional dependent photoresponsive perylene bisimide thin films can be made by aligning and drying under a magnetic field. This can be monitored by NMR and small angle neutron scattering and assessed by imaging and electrochemical techniques.


2017 ◽  
Vol 8 (21) ◽  
pp. 3300-3306 ◽  
Author(s):  
Xudong Jiang ◽  
Yunhua Xu ◽  
Xiaohui Wang ◽  
Fan Yang ◽  
Andong Zhang ◽  
...  

Electron acceptors based on fused perylene bisimide dimers with a twisted backbone were developed to show high electron mobility and isotropic crystalline properties, resulting in high power conversion efficiencies in non-fullerene solar cells.


RSC Advances ◽  
2015 ◽  
Vol 5 (37) ◽  
pp. 29262-29265 ◽  
Author(s):  
Bo Yu ◽  
Jiajun Ma ◽  
Yujuan Zhang ◽  
Gang Zou ◽  
Qijin Zhang

Reduced perylene bisimides (PBIs) with two substituents of polyhedral oligomeric silsesquioxane (POSS) are designed and synthesized for rapid and selective detection of picric acid in THF solution.


2009 ◽  
Vol 74 (16) ◽  
pp. 6275-6282 ◽  
Author(s):  
Hualei Qian ◽  
Wan Yue ◽  
Yonggang Zhen ◽  
Simone Di Motta ◽  
Eugenio Di Donato ◽  
...  

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