Dip-pen nanolithography: A simple diffusion model

Antončík, E.

doi:10.1016/j.susc.2005.09.037

Cited by 9 publications

(12 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…for dot writing, 77 where D S is related with the surface diffusion coefficient, and R is the radius of the source that creates the spreading with a concentration denoted as C meniscus/substrate . As mentioned above, it is assumed that inter-membrane dislocation of the lipids proceeds mainly under the tip where the meniscus enhances fluidity, so that R can be assumed to be approximately the meniscus size, 2R ∼ 200 nm (see Fig.…”

Section: 3mentioning

confidence: 99%

A diffusive ink transport model for lipid dip-pen nanolithography

Urtizberea

Hirtz

2015

Nanoscale

View full text Add to dashboard Cite

Despite diverse applications, phospholipid membrane stacks generated by dip-pen nanolithography (DPN) still lack a thorough and systematic characterization that elucidates the whole ink transport process from writing to surface spreading, with the aim of better controlling the resulting feature size and resolution. We report a quantitative analysis and modeling of the dependence of lipid DPN features (area, height and volume) on dwell time and relative humidity. The ink flow rate increases with humidity in agreement with meniscus size growth, determining the overall feature size. The observed time dependence indicates the existence of a balance between surface spreading and the ink flow rate that promotes differences in concentration at the meniscus/substrate interface. Feature shape is controlled by the substrate surface energy. The results are analyzed within a modified model for the ink transport of diffusive inks. At any humidity the dependence of the area spread on the dwell time shows two diffusion regimes: at short dwell times growth is controlled by meniscus diffusion while at long dwell times surface diffusion governs the process. The critical point for the switch of regime depends on the humidity.

show abstract

Section: 3mentioning

confidence: 99%

A diffusive ink transport model for lipid dip-pen nanolithography

Urtizberea

Hirtz

2015

Nanoscale

View full text Add to dashboard Cite

show abstract

“…[10][11][12][13][14] For the ink transport through a liquid meniscus, the size of the meniscus is critical for predictable results. [15][16][17][18] An important technique for which the formation of the meniscus is crucial is the fountain pen 19 in which ink is supplied through a nanochannel to the tip.…”

Section: Introductionmentioning

confidence: 99%

The profile of a capillary liquid bridge between solid surfaces

Honschoten

Tas

Elwenspoek

2010

American Journal of Physics

View full text Add to dashboard Cite

Scanning force microscopy, such as atomic force microscopy ͑AFM͒ is complicated by the capillary force of a water meniscus formed in air between the probe tip and the sample. This small liquid bridge between the hydrophilic sample and the sharp AFM tip can be formed by capillary condensation from the vapor phase. We present an analytical model that describes the shape of the meniscus in which the pressure difference across the curved liquid air interface is taken into account. The analysis is based on a minimization of the liquid surface energy, together with the boundary condition of a given pressure drop across the surface as determined by the relative humidity of the vapor. The capillary forces that the wetting liquid exerts on the AFM tip are derived from the model. The resulting expressions can be used to describe arbitrary axial symmetric liquid air interfaces with nonzero total curvature, such as fluid bridges between two surfaces and droplets under a uniform force. The model illustrates some of the basic concepts of capillarity, such as surface tension forces and interfacial pressure drops.

show abstract

“…A variety of inks [2][3][4][5][6][7] have been patterned with DPN, but there is still no complete understanding of the ink transport [8][9][10][11][12] mechanisms. The most common ink used to demonstrate DPN is mercaptohexadecanoic acid ͑MHA͒ patterned on gold substrates because of the stable patterns formed by the strong gold-thiol bonds.…”

Section: Introductionmentioning

confidence: 99%

Evidence of meniscus interface transport in dip-pen nanolithography: An annular diffusion model

Nafday

Vaughn

Weeks

2006

The Journal of Chemical Physics

View full text Add to dashboard Cite

Ring shaped dots were patterned with mercaptohexadecanoic acid ink by dip-pen nanolithography. These dots have an ink-free inner core surrounded by an inked annular region, making them different from the filled dots usually obtained. This suggests a different transport mechanism than the current hypothesis of bulk water meniscus transport. A meniscus interface ink transport model is proposed, and its general applicability is demonstrated by predicting the patterned dot radii of chemically diverse inks.

show abstract

Dip-pen nanolithography: A simple diffusion model

Cited by 9 publications

References 2 publications

A diffusive ink transport model for lipid dip-pen nanolithography

A diffusive ink transport model for lipid dip-pen nanolithography

The profile of a capillary liquid bridge between solid surfaces

Evidence of meniscus interface transport in dip-pen nanolithography: An annular diffusion model

Contact Info

Product

Resources

About