Superhydrophobic Structures Research Articles

Laser-enhanced electrodeposition preparation technology of superhydrophobic micro-nano structure coating

The superhydrophobic surface has functions such as anti-wetting, self-cleaning, and anti-icing, which is widely used in aerospace, pipeline transportation, medical equipment and other fields. In this study, a combination of laser and electrodeposition (ECD) is used to prepare a coating with sponge-like micro-nano line structures by using the principle that laser thermal effect can enhance the local electrodeposition rate, and then treated with 1 H,1 H,2 H,2 H-perfluorodecyltriethoxysilane to obtain the function of superhydrophobic. This method achieves the simultaneous preparation of the coating and the micro-nano structures without destroying the substrate, and the micro-nano structures are uniform and controllable. The effects of current density, laser scanning line spacing, laser power density, and laser scanning speed on the line structures and the wettability of the coating were investigated experimentally, and the wear resistance and anti-icing properties were tested. The experiment results show that when the line spacing is 150 µm, the contact angle (CA) can reach 155°, and the sliding angle (SA) is less than 1°, which has good superhydrophobic performance. Moreover, the coefficient of friction (COF) of the prepared superhydrophobic coating is 0.606, and the CA gradually decreases to 147° after rubbing the superhydrophobic surface 20 times with 1000 # sandpaper at a pressure of 10 kPa, and the SA exceeds 10° after rubbing 35 times, showing good wear resistance. In addition, the water drop freezing experiment shows that the freezing time of this superhydrophobic coating is 200 s, which is about 13 times longer than that of the hydrophobic coating (CA: 102°) prepared at a line spacing of 300 µm, therefore, the coating has excellent anti-icing performance.

Superhydrophobic Pt@SBA-15 catalyst for tritium separation in liquid phase catalytic exchange

Through the modification of mesoporous silica (SBA-15), a hydrophobic microscopic reaction environment was constructed, which was beneficial to improve the catalytic activity of the LPCE reaction. The Pt@SBA-15-tetramethyldisilazane catalyst is prepared by the modification of the SBA-15 carrier and the loading of metal Pt, with a water contact angle of 158°. This superhydrophobic structure can enhance the catalytic performance and can prevent the deactivation of the catalyst. By measuring the actual catalytic performance of tritium water under different conditions, we found that it has good catalytic activity, and the catalyst can still maintain a high catalytic activity after 30 days in tritium water environment.

Flexible conductive Ag-CNTs sponge with corrosion resistance for wet condition sensing and human motion detection

Three-dimensional (3D) polyurethane (PU) sponges featuring high mechanical elasticity, compressibility, and durability have emerged as an ideal substrate for building wearable strain sensors. However, the 3D porous structures easily soak up rain, water vapor, sweat, etc., and the constructed sensor’s long-term conductivity may be eroded by droplets and experience irreversible damage, rendering the preparation of a wearable flexible sponge sensor with environmental adaptation challenging. Here, by reducing the Ag particles in the carbon nanotube (CNT) suspension, forming a conductive filler Ag-CNTs, and combining with poly (vinylidene fluoride) (PVDF) solution, surface modification with polydimethylsiloxane (PDMS) solution, the PDMS/Ag-CNT-PVDF/PU sponge sensor with 3D conductive network and superhydrophobic structure was fabricated. The results revealed that this modified sponge had a wide strain detection range of 0–80 %, superior conductive sensitivity up to 4.24 kPa−1 in 0–20 kPa, and a fast and stable response time (170 ms) with great reproducibility over 1200 compression-resilience cycles. Furthermore, good superhydrophobicity endows the sensor with remarkable resistance to mechanical wear and chemical corrosion, which can be effectively used to detect human motion in high air humidity environment. This PDMS/Ag-CNTs-PVDF/PU sponge sensor is expected to be used as a practical, flexible wearable sensor and demonstrates potential application prospects in complex environments.

Self-assembled superhydrophobic bio-based controlled release fertilizer: Fabrication, membrane properties, release characteristics and mechanism

Controlled release fertilizers (CRF) have been developed rapidly because it can delay the release of nutrients. However, the traditional petroleum-based CRF is often harmful to the environment, which makes it difficult to large-scale directly apply for agricultural production. In this article, bio-based controlled-release fertilizers (BCF) was prepared using castor oils as coating materials. Fe3O4 nanoparticles were used to modify the surface of membrane to prepare super hydrophobic bio-based controlled-release fertilizers (SBCF). The micro-nano structure was self-assembly constructed with Fe3O4 spontaneously migrates to the outside under the action of an external magnetic field in the process of film formation. The results revealed that SBCF showed longer release period (∼70 d) than the BCF. The surface energy of SBCF was smaller (10.3 mJ/m2) because of the existence of micro-nano superhydrophobic structure. In addition, the roughness, microstructure, degree of cross-linking and other thermal properties of the membrane shells were measured. This self-assembly synthesis of SBCF through the magnetic interaction provides not only practical guidelines on development of sustainable and environmentally friendly controlled-release fertilizer but also other superhydrophobic materials for various applications.

Sputter-deposited nickel nanoparticles on Kevlar fabrics with laser-induced graphene for efficient solar evaporation

Solar desalination is a current green energy process in water treatment. In this process, producing solar evaporation materials is essential to the widespread diffusion of solar desalination technology. However, balancing cost and high evaporation performance poses an ongoing challenge. In this study, we prepared a self-floating fabric evaporator using a simple two-step method, first forming laser-induced graphene (LIG) by laser scribing technique on the surface of aramid fabric and then depositing nickel nanoparticles (NiNPs) on the LIG surface using magnetron sputtering. The porous aramid fabric provides a high water flux, and the NiNPs/LIG endows the aramid fabric with excellent photothermal properties. Compared with LIG alone, the addition of nickel nanoparticles with plasma effect can effectively reduce the heat loss due to light reflection from graphene, enhance light absorption, and efficiently achieve photothermal conversion. Under 1 solar irradiation (100 mW cm−2), the water evaporation rate of NiNPs/LIG up to 1.608 kg·m−2·h−1 with a conversion rate of 93 %. In addition, NiNPs/LIG formed a stable superhydrophobic structure on the fabric surface, effectively preventing salt deposition during desalination. More importantly, NiNPs/LIG has more excellent antibacterial properties than conventional solar desalination materials. Therefore, NiNPs/LIG has multiple water purification potentials in desalination and is a promising new solar absorber that deserves future attention.

Passive Deicing CFRP Surfaces Enabled by Super-Hydrophobic Multi-Scale Micro-Nano Structures Fabricated via Femtosecond Laser Direct Writing.

Carbon fiber reinforced plastic (CFRP) is the main material of aircraft skin. Preparing superhydrophobic anti-icing/deicing surface on the CFRP is of great importance for aircraft flight safety. In this work, a variety of multi-scale micro-nano structures were imprinted on CFRP by femtosecond laser processing, and a transition from hydrophilic to superhydrophobic CFRP was realized. After being optimized by different geometries and laser conditions, the water contact angle, which is tested at 24.3 °C and 34% humidity, increased from 88 ± 2° (pristine) to 149 ± 3° (100 μm groove) and 153 ± 3° (80 μm grid). A further anti-icing test at −10 °C (measured on the cooling platform) and 28% humidity showed that the freezing time was increased from 78 ± 10 s (pristine) to 282 ± 25 s (80 μm grid). Most importantly, the tensile tests showed that the femtosecond laser processing method did not deteriorate the mechanical properties of CFRP. This work provides great significance for aircraft passive deicing technology.

Long-lifetime, superhydrophobic, free-standing carbon infiltrated vertically aligned carbon nanotube structures

Long lifetime, free-standing, superhydrophobic, carbon infiltrated vertically aligned carbon nanotube structures (ct-VACNT) are prepared by VLS-assisted VACNT growth on photolithographic patterned catalyst wafers, followed by a carbon infiltration process creating c-VACNT precursor structures (made from a nanoporous carbon sponge material) which are subsequently released from the catalyst wafers, surface roughened on their top and bottom surface and then conformally overcoated with a few nm thick hydrophobic thin film of a hydrophobic amorphous fluoropolymer, thus resulting in free-standing superhydrophobic ct-VACNT structures. Longevity testing of the hydrophobic overcoating shows that the addition of a customized surface roughening step (especially in the form of low-pressure O2 plasma-assisted surface burning of the nanocarbon sponge material) for the bottom and top surfaces is key to extending the hydrophobic lifetime of such ct-VACNT structures from a few weeks to over a year.These long-lifetime ct-VACNT structures can now be used to develop novel fluid processing devices for a range of industrial and medical fluid processing applications requiring gas transfer into and/or out of aqueous liquids. Such novel fluid reactor devices are enabled by application-specific optimized components made from these novel nano-to macro ct-VACNT structures, in the form of Fluid channel Array Bricks (FABs).

Monomer-mediated fabrication of microporous organic network@silica microsphere for reversed-phase/hydrophilic interaction mixed-mode chromatography

Microporous organic networks (MONs) are promising in high performance liquid chromatography (HPLC) with large specific surface area, good hydrophobicity and stability. However, their superhydrophobic structures restrict MONs-based HPLC only in reversed-phase mode. To decrease the hydrophobicity of pristine MONs and to expand their broad application in HPLC, here we described the monomer-mediated fabrication of core-shell MON-2COOH@SiO2 microspheres for reversed-phase liquid chromatography (RPLC)/hydrophilic interaction liquid chromatography (HILIC) mixed-mode chromatography for the first time. The –COOH groups were introduced into MONs’ skeleton to improve their hydrophilicity and to provide hydrophilic interaction sites. The MON-2COOH was grafted onto silica via a monomer mediated method to produce monodispersed core-shell microspheres. By adjusting the concentration of reactants, the thickness of MON-2COOH shell was easily manipulated. The packed MON-2COOH@SiO2 column showed high resolution and selectivity for separating both hydrophobic (alkylbenzenes, polycyclic aromatic hydrocarbons, anilines and phenols) and hydrophilic (nucleoside and nucleic bases) probes, highlighting the promise of MONs in mixed-mode HPLC. The MON-2COOH@SiO2 column also achieved good separation to sulfonamides, nonsteroidal anti-inflammatory drugs, flavonoids and phenylurea herbicides, and offered better resolution than commercial C18 and pristine SiO2 column. Multiple retention mechanisms were also found on MON-2COOH@SiO2 packed column, underlining the great potential of MONs in mixed-mode HPLC.

Fluorine-free superhydrophobic surface with micron-nanosized two-tiered structure for self-cleaning, anti-frosting, and anti-icing applications

Superhydrophobic surfaces with micron-nanosized two-tiered structures have huge potential in practical applications. However, the complex preparation process and low-stability of the versatile superhydrophobic surfaces restricted their wide application. Herein, a facile chemical etching process was applied to create a micron-sized rough structure on the 1060 aluminum alloy substrate, and the micron-sized rough structure surface (M-surface) was hydrophobic with a water contact angle of 113.50° ± 2.7°. Then, the M-surface was modified by hydrophobic SiO2 nanoparticles, and a superhydrophobic micron-nanosized two-tiered structure surface (MNSS-TMES/H-SiO2 coating) with a water contact angle of 161.20° ± 2.3° was constructed. The as-prepared MNSS-TMES/H-SiO2 coating can maintain superhydrophobicity after self-cleaning, sand impact, and anti-frosting tests. More importantly, the MNSS-TMES/H-SiO2 coating exhibited superior anti-icing performance and higher defrosting efficiency. The freezing delay time of a water droplet on the MNSS-TMES/H-SiO2 coating was prolonged to 4973.87 s at − 15 °C, and the frost layer on the resultant coating was melting speedily and turned into several isolated spherical water droplets in approximately 20 s. Therefore, the prepared durable fluorine-free superhydrophobic MNSS-TMES/H-SiO2 coating with self-cleaning performance, higher defrosting efficiency, and the ability to delay icing, which has great prospects in practical applications.

Biomimetic Asymmetric Composite Dressing by Electrospinning with Aligned Nanofibrous and Micropatterned Structures for Severe Burn Wound Healing.

The surface structure and topography of biomaterials play a crucial role in directing cell behaviors and fates. Meanwhile, asymmetric dressings that mimic the natural skin structure have been identified as an effective strategy for enhancing wound healing. Inspired by the skin structure and the superhydrophobic structure of the lotus leaf, an asymmetric composite dressing was obtained by constructing an asymmetric structure and wettability surface modification on both sides of the sponge based on electrospinning. Among them, the collagen and quaternized chitosan sponge was fabricated by freeze-drying, followed by an aligned poly(ε-caprolactone) (PCL)/gelatin nanofiber hydrophilic inner layer and hierarchical micronanostructure PCL/polystyrene microsphere highly hydrophobic outer layer constructed on each side of the sponge. The proposed asymmetric composite dressing combines topological morphology with the material's properties to effectively prevent bacterial colonization/infection and promote wound healing by directing cellular behavior. In vitro experimental results confirmed that the aligned nanofiber inner layer effectively promotes cell adhesion, proliferation, directed cell growth, and migration. Meanwhile, the sponge has good water absorption and antibacterial properties, while the biomimetic hydrophobic outer layer exhibits strong mechanical properties and resistance to bacterial adhesion. In vivo results showed that the composite dressing can reduce inflammatory response, prevent infection, accelerate angiogenesis and epithelial regeneration, and significantly accelerate the healing of severe burns. Thus, the proposed bionic asymmetric dressing is expected to be a promising candidate for severe burn wound healing.

Design of High-Durability Superhydrophobic Microsurface Structures

Design of High-Durability Superhydrophobic Microsurface Structures

Fabrication of robust superhydrophobic micro-nano hierarchical surface structure using compression molding with carbon soot nanoparticles and thermoplastic polymer

The fragility of superhydrophobic surfaces limits applicability; therefore, development of hierarchical surface structure is an important strategy to achieve more robust superhydrophobic surfaces. Here, two-level micro-nano hierarchical polymer surfaces were fabricated by compression molding. Microstructured aluminum molds were produced through laser beam machining and then coated with carbon soot nanoparticles from acetone combustion. The nanostructure of soot nanoparticles combined with the mold microstructure was transferred onto the polypropylene sheet by compression molding. The replicated surface demonstrated superhydrophobicity with contact angles greater than 170° and sliding angles less than 10°. The mechanical robustness was confirmed with abrasion tests and adhesion tests. • We fabricated easily two-level micro-nano hierarchical polymer surfaces based on carbon soot nanoparticles and thermoplastic polymer. • Replicated surfaces performed good water repellence with the contact angle above 170° and the sliding angle under 6°. • Mechanical robustness of replicated surfaces was due to the upper micro-nanostructures as the protective microstructures that preserved the lower micro-nanostructures and the lowest nanostructures.

3D printed superhydrophobic structures for sustainable manufacturing benefits: An overview

Superhydrophobic properties have been present in nature for many millennia before human beings discovered their true capabilities and utilized them to revolutionize modern societies. The most familiar form of hydrophobicity found in nature is that of the lotus leaf, where its ultra-low water adhesion and self-cleaning properties make it one of the best hydrophobic elements formed naturally. Since its discovery, artificially created superhydrophobic elements have been used in many industries --maritime, automobile, and medical -- due to their self-cleaning, antibacterial, and corrosion-prevention properties. However, for a surface to become superhydrophobic, it must possess a greater roughness. To achieve this, microscopic- or nanoscopic-level modifications must be made to the surface through various experimentations. For a surface to be considered superhydrophobic, it must have a water contact angle greater than 150°. One cost-effective method of manufacturing superhydrophobic materials is three-dimensional (3D) printing (additive manufacturing), which has been gaining popularity in the recent past. A 3D printing design is initially created using computer-aided design (CAD) software. Then, the design information is transferred to a 3D printer through digital slicing of the CAD design. 3D printing allows the printing of objects with various functionalities at pre-designed locations in the object, so it is important to investigate these phenomena. This paper provides an overview of several studies that were conducted to achieve superhydrophobicity through the 3D printing process. The following section of the manuscript includes an introduction, literature review, methods of increasing surface roughness for superhydrophobicity, market-available 3D printing materials, and their applications, discussion on 3D printing technologies and concluding remarks.

Bioinspired Robust Water Repellency in High Humidity by Micro-meter-Scaled Conical Fibers: Toward a Long-Time Underwater Aerobic Reaction.

Superhydrophobic surfaces have suffered from being frequently penetrated by micro-/nano-droplets in high humidity, which severely deteriorates their water repellency. So far, various biological models for the high water repellency have been reported, which, however, focused mostly on the structural topology with less attention on the dimension character. Here, we revealed a common dimension character of the superhydrophobic fibrous structures of both Gerris legs and Argyroneta abdomens, featured as the conical topology and the micro-meter-scaled cylindrical diameter. In particular, it can be expressed by using a parameter of rp/l > 0.75 μm (r, l, and p are the radius, length, and apex spacing between fibers, respectively). Drawing inspiration, we developed a superhydrophobic micro-meter-scaled conical fiber array with a rather high rp/l value of 0.85 μm, which endows ultra-high water repellency even in high humidity. The micro-meter-scale asymmetric confined space between fibers enables generating a big difference in the Laplace pressure enough to propel the condensed dews away, while the tips help pin the air pocket underwater with a rather long life over 41 days. Taking advantage, we demonstrated a sustainable underwater aerobic reaction where oxygen was continuously supplied from the trapped air pocket by a gradually diffusing process. As a parameter describing both the dimension character and structural topology, the rp/l offers a new perspective for fabricating superhydrophobic fibrous materials with robust water repellency in high humidity, which inspires the innovative underwater devices with a robust anti-wetting performance.

Controllable and Scalable Fabrication of Superhydrophobic Hierarchical Structures for Water Energy Harvesting

We report a controllable and scalable fabrication approach for the superhydrophobic hierarchical structures and demonstrate the excellent ability to harvest water energy when applied to water-solid contact triboelectric nanogenerator (TENG). A strategy combined with multiple photolithography and micromolding process was developed to accurately regulate the diameters and the center distances of the two-level micropillars. A variety of hierarchical structures were successfully fabricated and presented the advantages of structure control, large scale, high accuracy, and high consistency. The hydrophobic property characterizations were conducted, and the results indicated that the hierarchical structures showed a larger contact angle than the single-level structures and achieved superhydrophobicity. Then the hierarchical structures were applied to water-TENGs with flowing water continuously dripping on, and the effect of the structure parameter on the triboelectric output was analyzed. The hierarchical structures exhibited a superior ability to harvest water energy than the flat film and the single-level structures due to the enhanced friction area and superhydrophobic property. At a flowing velocity of 8 mL/s, the hierarchical structure generated the output voltage of approximately 34 V and the short-circuit current of around 5 μA. The water-TENG device exhibited a power density peak of 7.56 μW/cm2 with a resistive load of 16.6 MΩ at a flowing velocity of 10 mL/s. These findings shed light on the potential applications of the hierarchical structures-based water-TENGs to water energy harvesting and self-powered sensor devices.

Backswimmer‐Inspired Miniature 3D‐Printed Robot with Buoyancy Autoregulation through Controlled Nucleation and Release of Microbubbles

The backswimmer is an aquatic insect, capable of regulating its buoyancy underwater. When it enters the water, it entraps an air bubble in a superhydrophobic hairy structure covering its abdomen. While this bubble is mainly used for respiration, it also functions as an external inflatable gas reservoir for buoyancy regulation. Namely, hemoglobin is used to store and release oxygen to the entrapped bubble, reversibly. This way, it can reach neutral buoyancy without further energy consumption. Herein, a small, centimeter‐scale, backswimmer‐inspired untethered robot (BackBot) with autobuoyancy regulation through controlled nucleation and release of microbubbles is developed. The bubbles nucleate and grow directly on onboard electrodes through electrolysis, regulated by low voltage. A bubble‐entrapping 3D‐printed canopy is introduced to create a stable external gas reservoir. To reduce buoyancy forces, the bubbles are released through linear mechanical vibrations of the canopy, decoupled from the robot's body. Through pressure sensing and a proportional integral derivative control loop mechanism, the robot autoregulates its buoyancy to reach neutral floatation underwater within seconds. This mechanism can promote the replacement of traditional, and physically larger, buoyancy regulation systems such as pistons and pressurized tanks, and enables the miniaturization of autonomous underwater vehicles.

Electrochemical polishing assisted selective laser melting of biomimetic superhydrophobic metallic parts

Metallic superhydrophobic surfaces can be widely used in pipeline transportation, oil–water separation, anti-icing, biomedicine and industrial production owing to their excellent properties. The biologically non-smooth superhydrophobic structure provides a biomimetic prototype for superhydrophobic metal surface processing. However, processing micro-nano biomimetic structures on the internal surface of complex pipelines is difficult because of the limitations of traditional molding processes. Herein, a superhydrophobic butterfly wing is imitated via the selective laser melting technology to print a pit prototype on the surface during the complex parts forming, and then the bio-inspired superhydrophobic internal surface of the 316L stainless steel is successfully prepared by the processes of electrochemical polishing, chemical etching, fluorosilane modification, and low temperature drying, sequentially. The morphology, wettability, corrosion resistance, and elemental composition of the obtained surface are characterized. The results show that a uniform pit-shaped micro-nano composite structure is formed on the surface, the contact angle is up to 155°, the rolling angle is less than 10°, and the corrosion resistance is significantly improved. Finally, a complex superhydrophobic inner surface square tube with application value is successfully prepared, and its excellent superhydrophobicity and self-cleaning properties are verified. This fabrication method provides an idea for the complication of metal superhydrophobic structures, and will promote the application of additive manufacturing in the engineering field.

High stability superhydrophobic glass-ceramic surface with micro–nano hierarchical structure

Inspired by the surface structure of lotus leaves, micro–nano hierarchical surface structures have been widely used for designing superhydrophobic surfaces. However, the conventionally designed superhydrophobic surface structures are fragile. In this study, a layer of micron-sized mullite whiskers was grown using molten salt on the surface of BaAl2Si2O8 (BAS) glass ceramics. Subsquently, SiO2 nanoparticles modified with 1H,1H,2H,2H-perfluorodecyltriethoxysilane were sprayed onto the whisker layer to form a superhydrophobic surface. The nanoparticles exhibit superhydrophobicity, which is protected by the whisker layer containing pores and bulges. This prohibits direct contact between the nanoparticles and external objects. Contact and rolling angle tests indicated that the surface contact angle of the micro–nano hierarchical structure is 158° and the rolling angle is less than 10°. The stability of the superhydrophobic surface was tested through ultraviolet light, long-time immersion in solutions with various pH values, water scouring, and sandpaper abrasion. The results showed that the contact angle is greater than 150°. This study is expected to provide a simple and effective method for fabricating superhydrophobic surfaces on ceramics on a large scale.

Durable superhydrophobic EVA cellular material spin-coated by SiO2/SEBS-g-MAH toward self-cleaning roofs

Ethylene-vinyl acetate copolymer (EVA) cellular material as one of important porous materials has been employed in the fields of outdoors cushioning. However, studies toward the construction of superhydrophobic structures on its surface for outdoor hygiene remains inadequate. In this work, a series of durable superhydrophobic SiO2/maleic anhydride grafted styrene-ethylene-butylene-styrene (SEBS-g-MAH) coatings with different weight contents of SiO2 were spin-coated on EVA cellular material's surface. 5Si-5S (50 wt% SiO2 and 50 wt% SEBS-g-MAH) coating showed water contact angle (WCA) of 162° and sliding angle of 6.3°. Meanwhile, 5Si-5S surface exhibited significant self-cleaning, anti-fouling and long-term water impact resistance abilities. Compared with Control sample, a freezing delay time of ~120 s and the 0.86 N reduction of ice adhesion force can also be realized. Contact angle values of 5Si-5S surface fluctuated around 160° as the pH of droplet changed in the range of pH 2–13. Moreover, the adhesive rate can reach 4B according to the ASTM D3359 and WCA can remain 150° after sandpaper abrasion, indicating its durability of hydrophobicity. The as-prepared EVA cellular material with durable superhydrophobic coating was expected as an outdoor building roof material toward self-cleaning and anti-icing application.

Biomimetic hierarchical nanofibrous surfaces inspired by superhydrophobic lotus leaf structure for preventing tissue adhesions

Undesirable tissue adhesions remain one of the most common and dreaded postoperative complications. Biocompatible nanofibrous mats with antiadhesive surfaces represent a promising barrier method for preventing the formation of adhesions. The material developed in this work was inspired by the natural superhydrophobic lotus leaf nanostructure, which was mimicked by a unique combination of needleless electrospraying and electrospinning technology of poly-ε-caprolactone (PCL). The surface hydrophobicity of electrosprayed nanodroplets was further enhanced by cold plasma modification using the chemical vapor deposition (CVD) method with hexamethyldisiloxane (HMDSO). The treatment led to a successful decrease in surface wettability of our samples. Morphology (scanning electron microscopy), wettability (contact angle) and chemical composition (FTIR analysis) were observed for a period of six months to track possible changes; the obtained results verified the presence of HMDSO during the whole time period. Cytocompatibility was confirmed in vitro with 3T3 mouse fibroblasts according to the norm ISO 10993-5. Cell adhesion and proliferation were assessed in vitro by metabolic MTT assay and fluorescence microscopy after 4, 7, and 14 days. Antiadhesive behaviour was confirmed by atomic force microscopy and ex vivo by peel test 90° with intestinal tissue, the final structure has a great potential to reduce postoperative tissue adhesions.