pH and Ionic Strength Effects on Amino Acid Transport through Au-Nanotubule Membranes Charged with Self-Assembled Monolayers

2007 ◽  
Vol 111 (7) ◽  
pp. 2965-2973 ◽  
Author(s):  
Jie-Ren Ku ◽  
Shih-Ming Lai ◽  
Nazar Ileri ◽  
Patricio Ramírez ◽  
Salvador Mafé ◽  
...  
1999 ◽  
Vol 598 ◽  
Author(s):  
C. Figura ◽  
P.J. Neyman ◽  
D. Marciu ◽  
C. Brands ◽  
M.A. Murray ◽  
...  

ABSTRACTIonically self-assembled monolayers have been recently shown to spontaneously produce the noncentrosymmetric ordering that is required for a second order nonlinear optical (NLO) response. The precise thickness of each monolayer is determined by variables such as the pH and ionic strength of the immersion solutions. We show here that the relationship between polymer conformation and layer thickness dramatically affects the magnitude of the NLO response. The largest χ(2) values are found in the thinnest films, indicating that the NLO response is determined primarily by chromophores located at the layer interfaces, as opposed to those within the bulk of a layer.


2016 ◽  
Vol 108 (14) ◽  
pp. 141102 ◽  
Author(s):  
Nana Wang ◽  
Lu Cheng ◽  
Junjie Si ◽  
Xiaoyong Liang ◽  
Yizheng Jin ◽  
...  

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