Photooxidation of IR ‐820 by Calixpyridinium‐Induced Assembled Material and Its pH‐Controlled Visual Multicolor Luminescence

2022 ◽  
Author(s):  
Kui Wang ◽  
Guo‐Jie Gao ◽  
Xiao‐Yan Wang
Keyword(s):  
Ph Controlled

scholarly journals Selective Separation of Amines from Continuous Processes using Automated pH Controlled Extraction

2021 ◽  
Author(s):  
Luke Power ◽  
Adam D. Clayton ◽  
William Reynolds ◽  
David Hose ◽  
Caroline Ainsworth ◽  
...  
Keyword(s):  
Liquid Extraction ◽  
Selective Separation ◽  
Continuous Processing ◽  
Online Analysis ◽  
Continuous Processes ◽  
Liquid Liquid Extraction ◽  
Ph Controlled

We present a rapid continuous processing methodology to screen for the optimal, selective, liquid-liquid extraction conditions, from a typical post-reaction mixture of amines, using both inline and online analysis to...

pH-Controlled Fluorescent Emission in the Nickel(II) Complex of a Bifunctional Tetramine Macrocycle

2002 ◽  
Vol 41 (18) ◽  
pp. 4612-4614 ◽  
Author(s):  
Luigi Fabbrizzi ◽  
Francesco Foti ◽  
Maurizio Licchelli ◽  
Antonio Poggi
Keyword(s):  
Fluorescent Emission ◽  
Ph Controlled

pH controlled accelerated dynamic in vitro calcification study of porcine heart valve bioprostheses

2006 ◽  
Vol 39 ◽  
pp. S307
Author(s):  
C.-F. Koening ◽  
M. Krings ◽  
D. Mavrilas ◽  
B. Glasmacher
Keyword(s):  
Heart Valve ◽  
Porcine Heart ◽  
Ph Controlled

scholarly journals PAMAM dendrimer: a pH-controlled nanosponge

2017 ◽  
Vol 95 (9) ◽  
pp. 991-998 ◽  
Author(s):  
Prabal K. Maiti
Keyword(s):  
Accessible Surface Area ◽  
Pamam Dendrimer ◽  
Low Ph ◽  
Dynamics Simulation ◽  
Solvent Accessible Surface Area ◽  
Water Molecules ◽  
Accessible Volume ◽  
Accessible Surface ◽  
Solvent Accessible Surface ◽  
Ph Controlled

Using fully atomistic molecular dynamics simulation that are several hundred nanoseconds long, we demonstrate the pH-controlled sponge action of PAMAM dendrimer. We show how at varying pH levels, the PAMAM dendrimer acts as a wet sponge; at neutral or low pH levels, the dendrimer expands noticeably and the interior of the dendrimer opens up to host several hundreds to thousands of water molecules depending on the generation number. Increasing the pH (i.e., going from low pH to high pH) leads to the collapse of the dendrimer size, thereby expelling the inner water, which mimics the ‘sponge’ action. As the dendrimer size swells up at a neutral pH or low pH due to the electrostatic repulsion between the primary and tertiary amines that are protonated at this pH, there is dramatic increase in the available solvent accessible surface area (SASA), as well as solvent accessible volume (SAV).

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