Simple Fabrication of Robust Water‐Repellent Surfaces with Low Contact‐Angle Hysteresis Based on Impregnation

Eifert, Alexander; Paulssen, Dorothea; Varanakkottu, Subramanyan Namboodiri; Baier, Tobias; Hardt, Steffen

doi:10.1002/admi.201300138

Cited by 104 publications

(116 citation statements)

References 34 publications

Supporting

Mentioning

108

Contrasting

Order By: Relevance

“…Afterwards the cuvette is cooled down slowly and rinsed with acetone. As as result of this process, a solid residue of silicon oil with a thickness of about 2 nm remains on the surface [23]. By this method, a concave meniscus between water and nitromethane is obtained.…”

Section: Meniscus Effectmentioning

confidence: 99%

See 1 more Smart Citation

Detachment of particles and particle clusters from liquid/liquid interfaces

Sinn

Alishahi

Hardt

2015

Journal of Colloid and Interface Science

View full text Add to dashboard Cite

Section: Meniscus Effectmentioning

confidence: 99%

“…For this reason, the walls of the cuvette were functionalized to render them hydrophobic and to create a concave meniscus. A simple method was used for this purpose [23]. The cuvette is filled with low-viscosity silicon oil (5cst) and heated up to 300°C for several minutes until the oil has evaporated.…”

Section: Meniscus Effectmentioning

confidence: 99%

Detachment of particles and particle clusters from liquid/liquid interfaces

Sinn

Alishahi

Hardt

2015

Journal of Colloid and Interface Science

View full text Add to dashboard Cite

“…3d). To simplify the estimation of the droplet volume, a silicone-oil-impregnated silicon wafer was used as the deposition substrate, which ensured circular three-phase contact lines of the deposited droplets323334. Droplets with volumes varying from 0.5 to 6 μl were transported using the MRS. No noticeable change in the droplet volume was found, as shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

Mechano-regulated surface for manipulating liquid droplets

et al. 2017

View full text Add to dashboard Cite

The effective transfer of tiny liquid droplets is vital for a number of processes such as chemical and biological microassays. Inspired by the tarsi of meniscus-climbing insects, which can climb menisci by deforming the water/air interface, we developed a mechano-regulated surface consisting of a background mesh and a movable microfibre array with contrastive wettability. The adhesion of this mechano-regulated surface to liquid droplets can be reversibly switched through mechanical reconfiguration of the microfibre array. The adhesive force can be tuned by varying the number and surface chemistry of the microfibres. The in situ adhesion of the mechano-regulated surface can be used to manoeuvre micro-/nanolitre liquid droplets in a nearly loss-free manner. The mechano-regulated surface can be scaled up to handle multiple droplets in parallel. Our approach offers a miniaturized mechano-device with switchable adhesion for handling micro-/nanolitre droplets, either in air or in a fluid that is immiscible with the droplets.

show abstract

“…More interestingly, the movement distance can be controlled easily via adjusting the angle of the wedge-pattern. On this basis, more interesting shape pattern could be designed to manipulate individual droplet or multiple droplets, which has great potential application prospect in pharmaceutical detection and microfluidic tools323334.…”

Section: Resultsmentioning

confidence: 99%

Controlled droplet transport to target on a high adhesion surface with multi-gradients

Deng

Shang

Feng

et al. 2017

Sci Rep

View full text Add to dashboard Cite

We introduce multi-gradients including Laplace pressure gradient, wettable gradient and wettable different gradient on a high adhesion surface via special wedge-pattern and improved anodic oxidation method. As a result of the cooperative effect mentioned above, controlled directional motion of a droplet on a high adhesion surface is realized, even when the surface is turned upside down. The droplet motion can be predicted and the movement distances can be controlled by simply adjusting the wedge angle and droplet volume. More interestingly, when Laplace pressure gradient is introduced on a V-shaped wettable gradient surface, two droplets can move toward one another as designed.

show abstract

Simple Fabrication of Robust Water‐Repellent Surfaces with Low Contact‐Angle Hysteresis Based on Impregnation

Cited by 104 publications

References 34 publications

Detachment of particles and particle clusters from liquid/liquid interfaces

Detachment of particles and particle clusters from liquid/liquid interfaces

Mechano-regulated surface for manipulating liquid droplets

Controlled droplet transport to target on a high adhesion surface with multi-gradients

Contact Info

Product

Resources

About