Capillary flow in sacrificially etched nanochannels
نویسندگان
چکیده
منابع مشابه
Incorporating Amphoteric Groups in Ion Track-etched Single Conical Nanochannels
Here, we report a facile and straight-forward approach to incorporate amphoteric groups inside the single conical nanochannels. This was realized by direct chemical modification of the surface carboxyl groups with L-lysine chains whose positive and negative charges are very sensitive to the external pH. The chemically functionalised channels were characterized both theoretically and experimenta...
متن کاملCapillary filling in closed end nanochannels.
We investigated the interactions between liquid, gas, and solid phases in the capillary filling process of closed-end nanochannels. This paper presents theoretical models without and with absorption and diffusion of gas molecules in the liquid. Capillary filling experiments were carried out in closed-end silicon nanochannels with different lengths. The theoretical and measured characteristics o...
متن کاملAnomalous capillary filling and wettability reversal in nanochannels.
This work revisits capillary filling dynamics in the regime of nanometric to subnanometric channels. Using molecular dynamics simulations of water in carbon nanotubes, we show that for tube radii below one nanometer, both the filling velocity and the Jurin rise vary nonmonotonically with the tube radius. Strikingly, with fixed chemical surface properties, this leads to confinement-induced rever...
متن کاملATP-Controlled Molecular Transport through Cylindrical Nanochannels Fabricated in Ion Track Etched Polymer Membranes
Nanoscale devices based on solid-state nanochannels have attracted enormous interest owing to the emergence of novel ion transport properties that mimic their biological counterparts. Compared to the fragile and sensitive biological systems, synthetic nanochannels fabricated in solid-state materials have proven a good alternative because of their (a) stability under harsh conditions, (b) easy t...
متن کاملNanoholes as nanochannels: flow-through plasmonic sensing.
We combine nanofluidics and nanoplasmonics for surface-plasmon resonance (SPR) sensing using flow-through nanohole arrays. The role of surface plasmons on resonant transmission motivates the application of nanohole arrays as surface-based biosensors. Research to date, however, has focused on dead-ended holes, and therefore failed to harness the benefits of nanoconfined transport combined with S...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Biomicrofluidics
سال: 2011
ISSN: 1932-1058
DOI: 10.1063/1.3602858