Time-Dependent Molecular Rearrangement of [Au(N9-adeninate)(PTA)] in Aqueous Solution and Aggregation-Induced Emission in a Hydrogel Matrix

2021 ◽  
Vol 60 (6) ◽  
pp. 3667-3676
Author(s):  
Daniel Blasco ◽  
José M. López-de-Luzuriaga ◽  
Miguel Monge ◽  
M. Elena Olmos ◽  
David Pascual ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Time Dependent ◽  
Molecular Rearrangement ◽  
Aggregation Induced Emission ◽  
Hydrogel Matrix

Cellular membrane-anchored fluorescent probe with aggregation-induced emission characteristics for selective detection of Cu2+ ions

2017 ◽  
Vol 196 ◽  
pp. 377-393 ◽  
Author(s):  
Danni Liu ◽  
Shenglu Ji ◽  
Heran Li ◽  
Liang Hong ◽  
Deling Kong ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Cell Membrane ◽  
Water Solubility ◽  
Live Cells ◽  
Probe Design ◽  
Specific Cell ◽  
Selective Detection ◽  
High Concentration ◽  
Aggregation Induced Emission ◽  
Emissive Probes

The exploration of advanced fluorescent probes that can detect divalent copper (Cu2+) in aqueous environments and even in live organisms is particularly valuable for understanding the occurrence and development of Cu2+-related diseases. In this work, we report the design and synthesis of an aggregation-induced emission luminogen (AIEgen)-based probe (TPE-Py-EEGTIGYG) by integrating an AIEgen, TPE-Py, with a peptide, EEGTIGYG, which can selectively detect Cu2+ in both aqueous solution and live cells. Peptide EEGTIGYG has dual functionality in the probe design, namely improving water solubility and providing specific cell membrane-binding ability. TPE-Py-EEGTIGYG can self-assemble into nanoaggregates at high concentration in aqueous solution (e.g., 25 μM), which possess large fluorescence output due to the restriction of intramolecular rotation of the phenyl rings on TPE-Py. The fluorescence of the TPE-Py-EEGTIGYG nanoaggregates can be significantly quenched by Cu2+ but not by other metal ions, achieving the selective detection of Cu2+ in aqueous media. Furthermore, TPE-Py-EEGTIGYG can exist as a molecular species and is very weakly fluorescent in dilute aqueous solution (e.g., 5 μM), but can however largely switch on its fluorescence upon specifically anchoring onto the cell membrane. The emissive probes on the cell membrane can be used for the detection of Cu2+ ions that move in and out of cells with a fluorescence “turn-off” mode.

An aggregation-induced emission (AIE) fluorescent chemosensor for the detection of Al(III) in aqueous solution

2019 ◽  
Vol 171 ◽  
pp. 107682 ◽  
Author(s):  
Yuanyuan Li ◽  
Kui Xu ◽  
Yue Si ◽  
Cuiping Yang ◽  
Qiuchen Peng ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Fluorescent Chemosensor ◽  
Aggregation Induced Emission

Time-dependent Cu2+-induced gelation of poly(ethylene-alt-maleic acid) in aqueous solution

2009 ◽  
Vol 45 (12) ◽  
pp. 3426-3432 ◽  
Author(s):  
Eudokia K. Oikonomou ◽  
Nicolitsa Lezi ◽  
Georgios Bokias ◽  
Joannis K. Kallitsis ◽  
Ilias Iliopoulos
Keyword(s):  
Aqueous Solution ◽  
Maleic Acid ◽  
Time Dependent ◽  
Poly Ethylene

Modeling on Falling Velocity of Sodiumtetraborate Aqueous Solution Drops before the Gelation of PVA-TiO2 Suspensions by the Runge-Kutta Method in Matlab 6.5

2008 ◽  
Vol 368-372 ◽  
pp. 1683-1685
Author(s):  
Cheng Long Yu ◽  
Xiu Feng Wang ◽  
Jun Xin Zhou ◽  
Hong Tao Jiang ◽  
Yan Wang
Keyword(s):  
Differential Equation ◽  
Aqueous Solution ◽  
Ordinary Differential Equation ◽  
Elevation Angle ◽  
Time Dependent ◽  
Quadratic Term ◽  
Kutta Method ◽  
Runge Kutta Method ◽  
Air Resistance ◽  
Runge Kutta

Numerical modeling on falling of sodiumtetraborate aqueous solution drops as the initiator before the gelation of PVA-TiO2 suspensions was conducted. Effect of time and elevation angle of the PVA-TiO2 suspensions on the falling velocity of the sodiumtetraborate aqueous solution drops was analyzed. An ordinary differential equation was given. Integration of the ordinary differential equation was fulfilled using the fourth-order Runge-Kutta method in Matlab 6.5. From the model, a two-order nonlinear effect of time on the velocity of the drops during falling is determined and the quadratic term -3.408t2 serves as the time dependent air resistance. The component of the falling velocity along the suspensions increases with the increasing of the elevation angle. However, for the component vertical to the suspensions, with elevation angle increasing, it decreases.

Excess electron interaction with radiosensitive 5-bromopyrimidine in aqueous solution: a combined ab initio molecular dynamics and time-dependent wave-packet study

2015 ◽  
Vol 17 (30) ◽  
pp. 19797-19805 ◽  
Author(s):  
Changzhe Zhang ◽  
Yuxiang Bu
Keyword(s):  
Molecular Dynamics ◽  
Aqueous Solution ◽  
Wave Packet ◽  
Ab Initio ◽  
Excess Electron ◽  
Time Dependent ◽  
Ab Initio Molecular Dynamics ◽  
Electron Interaction ◽  
Secondary Electrons ◽  
Target Molecule

Radiation-generated secondary electrons can induce resonance processes in a target molecule and fragment it via different pathways.

Time dependent aggregation induced emission enhancement and the study of molecular packing in closely related azo-phenol BODIPY species

2018 ◽  
Vol 47 (11) ◽  
pp. 3785-3795 ◽  
Author(s):  
Rajendra Prasad Paitandi ◽  
Roop Shikha Singh ◽  
Bhupendra Kumar Dwivedi ◽  
Vishwa Deepak Singh ◽  
Daya Shankar Pandey
Keyword(s):  
Molecular Packing ◽  
Time Dependent ◽  
Aggregation Induced Emission ◽  
Emission Enhancement

Novel fluorescent azo-phenol BODIPYs (1–3) achieved by the substituent directed fabrication of ortho (L1) and para (L2–L3) azo-phenol aldehydes.

Flow Pattern Evolution With Time Mixing of Non-Newtonian Fluid in a Stirred Tank Using Particle Image Velocimetry

Volume 1 ◽  
2004 ◽  
Author(s):  
E. Fransolet ◽  
P. Marchot ◽  
D. Toye ◽  
M. Crine
Keyword(s):  
Aqueous Solution ◽  
Particle Image Velocimetry ◽  
Flow Pattern ◽  
Newtonian Fluid ◽  
Particle Image ◽  
Mixing Time ◽  
Time Dependent ◽  
Stirred Tank ◽  
Image Velocimetry ◽  
Evolution With Time

This paper presents an experimental analysis of the evolution with time of the flow pattern in a stirred tank equipped with a rotor-stator mixer, when mixing a time dependent non-Newtonian fluid. Particle image velocimetry (PIV) is used to determine 2D velocity maps. Polyacrylamide (PAAm) aqueous solution is used as model of time dependent shear thinning fluids. Creep compliance and recovery tests are performed to follow the evolution of the fluid rheology, from a viscoelastic behaviour to a purely viscous one. This indicates mixing has almost completely destroyed the initial network structure of the non-Newtonian fluid. The evolution of the flow pattern with the mixing time is compared with the flow patterns obtained in presence of Newtonian fluids as water and glycerol aqueous solution.

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