Biosensing based upon molecular confinement in metallic nanocavity arrays

2005 ◽  
Author(s):  
Yongdong Liu ◽  
Steve Blair
ACS Catalysis ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 5935-5946 ◽  
Author(s):  
Vicente J. Margarit ◽  
Mogahid Osman ◽  
Sulaiman Al-Khattaf ◽  
Cristina Martínez ◽  
Mercedes Boronat ◽  
...  

2020 ◽  
Vol 142 (40) ◽  
pp. 16926-16929
Author(s):  
George Razvan Bacanu ◽  
Jyrki Rantaharju ◽  
Gabriela Hoffman ◽  
Mark C. Walkey ◽  
Sally Bloodworth ◽  
...  

Lab on a Chip ◽  
2016 ◽  
Vol 16 (5) ◽  
pp. 877-883 ◽  
Author(s):  
William R. A. Wichert ◽  
Donghoon Han ◽  
Paul W. Bohn

The effects of molecular confinement and crowding on enzyme kinetics were studied at length scales and under conditions similar to those found in biological cells.


2017 ◽  
Vol 121 (41) ◽  
pp. 9676-9687 ◽  
Author(s):  
Somenath Panda ◽  
Kaushik Kundu ◽  
Akhil Pratap Singh ◽  
Sanjib Senapati ◽  
Ramesh L. Gardas

Science ◽  
2008 ◽  
Vol 322 (5902) ◽  
pp. 720-724 ◽  
Author(s):  
H. D. Rowland ◽  
W. P. King ◽  
J. B. Pethica ◽  
G. L. W. Cross

Nanomaterials ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 1101 ◽  
Author(s):  
Vassilios Gavriil ◽  
Margarita Chatzichristidi ◽  
Dimitrios Christofilos ◽  
Gerasimos A. Kourouklis ◽  
Zoe Kollia ◽  
...  

Molecules near surfaces are regularly trapped in small cavitations. Molecular confinement, especially water confinement, shows intriguing and unexpected behavior including surface entropy adjustment; nevertheless, observations of entropic variation during molecular confinement are scarce. An experimental assessment of the correlation between surface strain and entropy during molecular confinement in tiny crevices is difficult because strain variances fall in the nanometer scale. In this work, entropic variations during water confinement in 2D nano/micro cavitations were observed. Experimental results and random walk simulations of water molecules inside different size nanocavitations show that the mean escaping time of molecular water from nanocavities largely deviates from the mean collision time of water molecules near surfaces, crafted by 157 nm vacuum ultraviolet laser light on polyacrylamide matrixes. The mean escape time distribution of a few molecules indicates a non-thermal equilibrium state inside the cavity. The time differentiation inside and outside nanocavities reveals an additional state of ordered arrangements between nanocavities and molecular water ensembles of fixed molecular length near the surface. The configured number of microstates correctly counts for the experimental surface entropy deviation during molecular water confinement. The methodology has the potential to identify confined water molecules in nanocavities with life science importance.


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