//&#;&#;This material had excellent hydrophobic and self-cleaning properties (static WCA = &#;, roll-off angle = &#;), but due to microparticle composition, its mechanical properties were very low. The most mechanically stable beads-on-strings structure produced from the % by wt solution had a WCA of &#; only and a sliding angle of &#;.

Cell interactions with superhydrophilic and superhydrophobic surfaces. Download. Related Papers. Controlling Cell Behavior Through the Design of Polymer Surfaces. By Iva Pashkuleva. Impact of surface chemistry and topography on the function of antigen presenting cells. By Nihal Engin Vrana.

//&#;&#;This article describes a facile method for the preparation of two-dimensionally patterned superhydrophobic hybrid coatings with controlled wettability. Superhydrophobic coatings were deposited from nanostructured organically modified silica (ormosil) colloids that were synthesized via a simple solgel method. On th

(WCA) of stainless steel decreased from &#; to &#; (superhydrophilic). For superhydrophobic surface, % w/w of CNT-PTFE solution was prepared by ultrasonicating COOH functionalized multi-walled CNT with water-based PTFE suspension (PTFE) for hour.

The Au and PDMS/Copper superhydrophobic coatings, respectively, possessed a WCA of &#; &#; &#;, with a roll-off angle of &#; &#; &#; and a WCA of &#; &#; &#;, a low roll-off angle of &#; &#; &#;. Generally, the drag reduction rate was defined as ((V superhydrophobic V normal )/V normal ) &#; %.

Under oil, the PVDF membrane was superhydrophobic, with a WCA as high as &#; (Fig. b), indicating that the PVDF layer can effectively block the water penetration for water-in

//&#;&#;Facile Construction of C opper Mesh Surface f rom Superhydrophilic to Superhydrophobic for Various Oil-Water Separations . Xudong Zhang , #, Yamin Pan , , #, Junyang Zhao , Xiaoqiong Hao , Yaming Wang , *, Dirk W Schubert , Chuntai Liu , Changyu Shen and Xianhu Liu , , *. College of Materials Science and Engineering; National Engineering Research

//&#;&#;The WCA of treated substrate shifted from [degrees] to [degrees] indicating an excellent superhydrophilicity of coating. According to the Figure (c), the WCA of coating showed no significant changes where the WCA of coating slightly increases to [degrees] after

represent a superhydrophobic surface: all the samples demonstrated the superhydrophobic behavior with a contact angle ranging from &#; to &#;. As it was predicted in [, ], due to the combination of the micro- and nanoscale structural parameters, the sample with ZnO microoctapods manifest the best superhydrophobic properties.

It can be seen from Eq. () that, for superhydrophilic surfaces, the work of adhesion approaches twice the value of the liquid surface tension, while for superhydrophobic surfaces, the work of adhesion becomes increasingly negligible as the WCA increases. Modification of Surface Free Energies

//&#;&#;DOE PAGES Journal Article: Transparent superhydrophilic and superhydrophobic nanoparticle textured coatings: comparative study of anti-soiling performance Journal Article: Transparent superhydrophilic and superhydrophobic nanoparticle textured coatings: comparative study of anti-soiling performance

//&#;&#;The wettability transition of the obtained surface from superhy- X.-H. Men &#; J. Yang drophilic (WCA < ) to superhydrophobic (WCA > ) Graduate School, Chinese Academy of Sciences, Beijing , was readily controlled, and superhydrophobic surfaces were P.R. China X.-H. Men et al. achieved by varying heating temperatures, such as , , or C, on the basis of the

the membrane of the back side becomes superhydrophobic (WCA of &#;, inset in Figure A). However, on the front side there are no s oot on the fibers (Figure C,D), such that the WCA is only &#; (inset in Figure C) [,]. The above result may be understood from the formation of

//&#;&#;Such a superhydrophilic PDMS surface has great repellence to both oil droplets and gas bubbles in water. Underwater oil droplet and bubble have a spherical shape on such PDMS surface, with the OCA of &#; ( Figure O) and BCA of &#; ( Figure P ), respectively. Both oil droplets and bubbles can easily roll away from a &#; tilted sample ...

Superhydrophilic and superhydrophobic surfaces have potential for implementation into a variety of fields, including self-cleaning surfaces, anti-fogging transparent materials, and biomedical applications. In this study, sandblasting, oxygen plasma treatments, silica nanoparticle films, and a low surface energy fluorocarbon film were employed to change the natural surface wettability of ...

//&#;&#;Superhydrophobic materials/coatings with mechanical ... with a WCA of ~&#;. e, ... Z. et al. A novel superhydrophilic and underwater superoleophobic hydrogel-coated mesh for oil/water ...

surface property of polymeric materials into superhydrophobic or superhydrophilic and maintaining their bulk properties is an important eld of investigation. A superhydrophilic surface generally exhibits a water contact angle lower than []. On such a surface, water droplets spread rapidly

Superhydrophilic surfaces are those that exhibit water contact angle close to &#;. Most applications include microfluidic devices and household appliance, mainly because of their antifogging and antifouling properties. Generally, superhydrophilicity is achieved by adding strong polar group and/or roughness to the surface [][][].

//&#;&#;In general, superhydrophilic coating on glass substrate possesses water contact angle (WCA) below &#; and contains high self-cleaning properties in outdoor environment as compared to noncoated glass substrate panels. In this study, the superhydrophilic coating behavior on glass substrate has been developed. The micro- and nanosized titanium dioxide (TiO)

Superhydrophilic and superhydrophobic surfaces have potential for implementation into a variety of fields, including self-cleaning surfaces, anti-fogging transparent materials, and biomedical applications. ... (WCA ~ &#;) and very hydrophobic (WCA ~ &#;) surfaces can be produced on PET.

//&#;&#;A superhydrophobic nanocoated PP surface with a WCA of &#; (Fig. a) is converted to superhydrophilic after min of UV illumination (Fig. b) and finally, the superhydrophobicity is easily recovered by a soft thermal treatment at &#;C for h (Fig. c).

SHANG Fuqiang,HUANG Liqing,LI Gang, et al. Preparation of Superhydrophilic Anodized Aluminum Oxide Membrane and Superhydrophobic Anodized Aluminum Oxide Membrane with Different Adhesion[J]. Materials Reports, , (): ...

//&#;&#;Superhydrophobic and superhydrophilic surfaces are defined as having water contact angles ... The inset to Figure (a) displays a spherical water droplet having a WCA of &#; on this surface. After UV exposure for longer than min, this WCA reached very close to &#;, corresponding to a superhydrophilic surface (Figure ).

//&#;&#;The temporal variation of WCA on the Al alloy target was explained by formation of the oxide layer on the ablated surface. The superhydrophobic or superhydrophilic properties of the curved surfaces can attract considerable interest due to their larger contact with the water and oil layers.

A superhydrophobic nanocoated PP surface with a WCA of &#; (Fig. a) is converted to superhydrophilic after min of UV illumination (Fig. b) and

In general, superhydrophilic coating on glass substrate possesses water contact angle (WCA) below &#; and contains high self-cleaning properties in outdoor environment as compared to noncoated glass substrate panels. In this study, the superhydrophilic coating

Dense copper oxide nanoribbons arrays are prepared on a copper sheet by using a low-temperature hydrothermal method. The wettability of the surface modified by stearic acid is superhydrophobic, and the water contact angle is &#;. It is demonstrated that the reversible transition from superhydrophilicity to superhydrophobicity is successfully achieved by heat treatment and re-modification ...

//&#;&#;This study also shows that after being treated with C F in a DRIE system, the superhydrophilic sample becomes superhydrophobic with a WCA of &#;. This technique opens an opportunity for controlling surface wettability for use in many applications by creating superhydrophilicsuperhydrophobic patterns for controlling fluid flow in microfluidic devices.

//&#;&#;In superhydrophobic coatings with TiO and ZnO, a change in wetting properties from superhydrophobic to superhydrophilic through UV irradiation can be observed. The reason for this unexpected change in wetting behavior is that UV irradiation will cause electron-hole pairs on the surface which will react with the lattice oxygen, and this will cause oxygen vacancy on the surface.

//&#;&#;ZnO is introduced to prepare a superhydrophobic, with a WCA of &#; and a sliding angle of about &#;, Zn coating on a steel substrate. The ZnO hydrophobic coating was prepared on borosilicate glass, amorphous quartz, single-crystal sapphire, lanthanum aluminate, and yttria-stabilized zirconia substrates using thermal evaporation methods, which are also suitable for mechanical and ...