Carboxyl groups were introduced at the peripheral positions of dodecaphenylporphyrin to link nanochannel structures with intermolecular hydrogen bonds to make the supramolecular structures robust.

Molecular dynamics and Langevin dynamics simulations are used to elucidate the behavior of liquid atoms near a solid boundary. Correlations between the surface wettability and spatial variations in liquid density and structure are identified. The self-diffusion coefficient tensor is predicted, revealing highly anisotropic and spatially varying mass transfer phenomena near the solid boundary. Th...

The investigation of enzyme reaction kinetics in nanoconfined spaces mimicking the conditions in living systems is of great significance. Here, a nanofluidics chip integrated with an electrochemical detector has been designed for studying "free state" enzyme reaction kinetics in nanoconfinement. The nanofluidics chip is fabricated using the UV-ablation technique developed in our group. The enzy...

This review addresses the questions of whether it makes sense to use lithographically defined nanochannels for chemistry in liquids, and what it is possible to learn from experiments on that topic. The behavior of liquids in different classes of pores (categorized according to their size) is reviewed, with a focus on chemical reactions and protein dynamics. A number of interesting phenomena are...

Current rectification and electrokinetic flow properties in an asymmetric nanochannel a thermoplastic polyurethane membrane were investigated experimentally numerically. The with tip diameter of about 300 nm showed current rectification, which is evident only nanochannels much smaller radii (<100 nm), due to the surface material. To elucidate mechanism mathematical model consisting Nernst - Pla...

Submitted for the MAR10 Meeting of The American Physical Society An integrated nanopore-nanochannel system for biodetection: longitudinally-displaced transverse nanoelectrodes along a nanochannel1 XINSHENG SEAN LING, Brown University — In this talk, I’ll describe a novel device concept for a biodetection system with combined characteristics of nanopores and nanochannels. Solid-state nanopores d...

Submitted for the MAR13 Meeting of The American Physical Society Monte Carlo simulation of single-molecule recycling in a nanochannel for accurate diffusion measurements BO WANG, SULTAN BEHERY, LLOYD M. DAVIS, University of Tennessee Space Institute — In previous experiments on single-molecule (SM) detection in solution, we demonstrated that prolonged observation times and photon yields are ach...