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Journal articles on the topic 'Hydrogel/substrate interface'

Author: Grafiati

Published: 25 May 2024

Last updated: 19 July 2025

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1

Liu, Junjie, Nan Hu, Yao Xie, Peng Wang, Jingxiang Chen, and Qianhua Kan. "Polyacrylic Acid Hydrogel Coating for Underwater Adhesion: Preparation and Characterization." Gels 9, no. 8 (2023): 616. http://dx.doi.org/10.3390/gels9080616.

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Underwater adhesion involves bonding substrates in aqueous environments or wet surfaces, with applications in wound dressing, underwater repairs, and underwater soft robotics. In this study, we investigate the underwater adhesion properties of a polyacrylic acid hydrogel coated substrate. The underwater adhesion is facilitated through hydrogen bonds formed at the interface. Our experimental results, obtained through probe-pull tests, demonstrate that the underwater adhesion is rapid and remains unaffected by contact pressure and pH levels ranging from 2.5 to 7.0. However, it shows a slight inc

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2

Lin, Yue-Xian, Shu-Han Li, and Wei-Chen Huang. "Fabrication of Soft Tissue Scaffold-Mimicked Microelectrode Arrays Using Enzyme-Mediated Transfer Printing." Micromachines 12, no. 9 (2021): 1057. http://dx.doi.org/10.3390/mi12091057.

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Hydrogels are the ideal materials in the development of implanted bioactive neural interfaces because of the nerve tissue-mimicked physical and biological properties that can enhance neural interfacing compatibility. However, the integration of hydrogels and rigid/dehydrated electronic microstructure is challenging due to the non-reliable interfacial bonding, whereas hydrogels are not compatible with most conditions required for the micromachined fabrication process. Herein, we propose a new enzyme-mediated transfer printing process to design an adhesive biological hydrogel neural interface. T

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3

He, Meiyi, Guge Niku, and Wenjiang Zheng. "Hydrophobic Initiator Activates the Interface Reaction to Trigger Polymerization Graft Polytetrafluoroethylene Catheter." International Journal of Materials Science and Technology Studies 3, no. 1 (2025): 52–62. https://doi.org/10.62051/ijmsts.v3n1.06.

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Decreasing the surface friction coefficient of medical catheters is important especially in interventional treatment, but the current solution involves high cost or cumbersome manufacturing processes. In order to effectively solve the problem of high friction coefficient of the inner and outer layers in the use of medical catheters and simplify the manufacturing process, we use polytetrafluoroethylene (PTFE) as a catheter material to graft directly with PAAm hydrogel. In order to overcome the high chemical inertness and low surface energy of PTFE, nitrogen ion injection is used to modify the s

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4

Yang, Yueh-Hsun Kevin, Courtney R. Ogando, and Gilda A. Barabino. "In Vitro Evaluation of the Influence of Substrate Mechanics on Matrix-Assisted Human Chondrocyte Transplantation." Journal of Functional Biomaterials 11, no. 1 (2020): 5. http://dx.doi.org/10.3390/jfb11010005.

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Matrix-assisted chondrocyte transplantation (MACT) is of great interest for the treatment of patients with cartilage lesions. However, the roles of the matrix properties in modulating cartilage tissue integration during MACT recovery have not been fully understood. The objective of this study was to uncover the effects of substrate mechanics on the integration of implanted chondrocyte-laden hydrogels with native cartilage tissues. To this end, agarose hydrogels with Young’s moduli ranging from 0.49 kPa (0.5%, w/v) to 23.08 kPa (10%) were prepared and incorporated into an in vitro human cartila

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Zhao, Zhitong, Weiwei Gao, and Hao Bai. "A mineral layer as an effective binder to achieve strong bonding between a hydrogel and a solid titanium substrate." Journal of Materials Chemistry B 6, no. 23 (2018): 3859–64. http://dx.doi.org/10.1039/c8tb01042k.

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6

González-Henríquez, Carmen M., Diego F. Veliz-Silva, Mauricio A. Sarabia-Vallejos, Adolfo del Campo-García, and Juan Rodríguez-Hernández. "Micrometric Wrinkled Patterns Spontaneously Formed on Hydrogel Thin Films via Argon Plasma Exposure." Molecules 24, no. 4 (2019): 751. http://dx.doi.org/10.3390/molecules24040751.

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The generation of microstructured patterns on the surface of a specific polymeric material could radically improve their performance in a particular application. Most of the interactions with the environment occur at the material interface; therefore, increasing the exposed active surface considerably improves their range of application. In this article, a simple and reliable protocol to form spontaneous wrinkled patterns using a hydrogel layer is reported. For this purpose, we took advantage of the doctor blade technique in order to generate homogenous films over solid substrates with control

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Bordbar-Khiabani, Aydin, Ilijana Kovrlija, Janis Locs, Dagnija Loca, and Michael Gasik. "Octacalcium Phosphate-Laden Hydrogels on 3D-Printed Titanium Biomaterials Improve Corrosion Resistance in Simulated Biological Media." International Journal of Molecular Sciences 24, no. 17 (2023): 13135. http://dx.doi.org/10.3390/ijms241713135.

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The inflammatory-associated corrosion of metallic dental and orthopedic implants causes significant complications, which may result in the implant’s failure. The corrosion resistance can be improved with coatings and surface treatments, but at the same time, it might affect the ability of metallic implants to undergo proper osteointegration. In this work, alginate hydrogels with and without octacalcium phosphate (OCP) were made on 3D-printed (patterned) titanium alloys (Ti Group 2 and Ti-Al-V Group 23) to enhance their anticorrosion properties in simulated normal, inflammatory, and severe infl

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Aydin, Bordbar-Khiabani, Kovrlija Ilijana, Locs Janis, Loca Dagnija, and Gasik Michael. "Octacalcium Phosphate-Laden Hydrogels on 3D-Printed Titanium Biomaterials Improve Corrosion Resistance in Simulated Biological Media." International Journal of Molecular Sciences 24, no. 17 (2023): 13135. https://doi.org/10.3390/ijms241713135.

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The inflammatory-associated corrosion of metallic dental and orthopedic implants causes significant complications, which may result in the implant’s failure. The corrosion resistance can be improved with coatings and surface treatments, but at the same time, it might affect the ability of metallic implants to undergo proper osteointegration. In this work, alginate hydrogels with and without octacalcium phosphate (OCP) were made on 3D-printed (patterned) titanium alloys (Ti Group 2 and Ti-Al-V Group 23) to enhance their anticorrosion properties in simulated normal, inflammatory, and sever

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9

Wensley, Victoria, Nicholas J. Goddard, and Ruchi Gupta. "pH Measurements Using Leaky Waveguides with Synthetic Hydrogel Films." Micromachines 16, no. 2 (2025): 216. https://doi.org/10.3390/mi16020216.

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Leaky waveguides (LWs) are low-refractive-index films deposited on glass substrates. In these, light can travel in the film while leaking out at the film–substrate interface. The angle at which light can travel in the film is dependent on its refractive index and thickness, which can change with pH when the film is made of pH-responsive materials. Herein, we report an LW comprising a waveguide film made of a synthetic hydrogel containing the monomers acrylamide and N-[3-(dimethylamino)propyl]methacrylamide (DMA) and a bisacrylamide crosslinker for pH measurements between 4 and 8. The response

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10

Cho, Wonkyung, Min-Ah Oh, Sun-heui Yoon, Chang Il Shin, Minji Jung, and Taek Dong Chung. "(Keynote) Biologically Targeted Janus Synapse between Ultramicroelectrode and Primary Neuron." ECS Meeting Abstracts MA2024-02, no. 54 (2024): 3677. https://doi.org/10.1149/ma2024-02543677mtgabs.

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Seamless neural interfaces conjoining neurons and electrochemical devices hold great potential for highly efficient signal transmission across neuronal systems and the external world. Signal transmission through chemical sensing and stimulation via electrochemistry is remarkable because communication occurs through the same chemical language of neurons. One promising approach is a synaptogenesis-involving method, which offers an opportunity for synaptic signaling between these systems. Janus synapses, one type of synaptic interface utilizing synaptic cell adhesion molecules for biotic-abiotic

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11

Wischke, Christian, Marlin Kersting, Alexander Welle, et al. "Thin hydrogel coatings formation catalyzed by immobilized enzyme horseradish peroxidase." MRS Advances 5, no. 14-15 (2020): 773–83. http://dx.doi.org/10.1557/adv.2020.218.

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ABSTRACTEnzymes can be a renewable source of catalytic agents and thus be interesting for sustainable approaches to create and modify functional materials. Here, thin hydrogel layers were prepared as thin coatings on hard substrates by immobilized horseradish peroxidase. Hydrophilic 4-arm star shaped telechelics from oligo(ethylene glycol) bearing on average 55% end groups derived from aromatic amino acids served as monomers and enzymatic substrates. Shifts of the contact angle from 84° to 62° for the wetting process and of zeta potential towards the neutral range illustrated an alteration of

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12

Lee, Hyelim, Jaepyo Jang, Jaebeom Lee, Mikyung Shin, Jung Seung Lee, and Donghee Son. "Stretchable Gold Nanomembrane Electrode with Ionic Hydrogel Skin-Adhesive Properties." Polymers 15, no. 18 (2023): 3852. http://dx.doi.org/10.3390/polym15183852.

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Skin has a dynamic surface and offers essential information through biological signals originating from internal organs, blood vessels, and muscles. Soft and stretchable bioelectronics can be used in wearable machines for long-term stability and to continuously obtain distinct bio-signals in conjunction with repeated expansion and contraction with physical activities. While monitoring bio-signals, the electrode and skin must be firmly attached for high signal quality. Furthermore, the signal-to-noise ratio (SNR) should be high enough, and accordingly, the ionic conductivity of an adhesive hydr

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13

Sun, Lingyu, Feika Bian, Yu Wang, Yuetong Wang, Xiaoxuan Zhang, and Yuanjin Zhao. "Bioinspired programmable wettability arrays for droplets manipulation." Proceedings of the National Academy of Sciences 117, no. 9 (2020): 4527–32. http://dx.doi.org/10.1073/pnas.1921281117.

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The manipulation of liquid droplets demonstrates great importance in various areas from laboratory research to our daily life. Here, inspired by the unique microstructure of plant stomata, we present a surface with programmable wettability arrays for droplets manipulation. The substrate film of this surface is constructed by using a coaxial capillary microfluidics to emulsify and pack graphene oxide (GO) hybridN-isopropylacrylamide (NIPAM) hydrogel solution into silica nanoparticles-dispersed ethoxylated trimethylolpropane triacrylate (ETPTA) phase. Because of the distribution of the silica na

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14

Guo, Jiaxin, Jun Luo, and Zhongmin Xiao. "On the opening profile and near tip fields of an interface crack between a polymeric hydrogel and a rigid substrate." Engineering Fracture Mechanics 153 (March 2016): 91–102. http://dx.doi.org/10.1016/j.engfracmech.2015.12.029.

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15

Cristallini, Caterina, Serena Danti, Bahareh Azimi, et al. "Multifunctional Coatings for Robotic Implanted Device." International Journal of Molecular Sciences 20, no. 20 (2019): 5126. http://dx.doi.org/10.3390/ijms20205126.

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The objective of this study was the preparation and physico-chemical, mechanical, biological, and functional characterization of a multifunctional coating for an innovative, fully implantable device. The multifunctional coating was designed to have three fundamental properties: adhesion to device, close mechanical resemblance to human soft tissues, and control of the inflammatory response and tissue repair process. This aim was fulfilled by preparing a multilayered coating based on three components: a hydrophilic primer to allow device adhesion, a poly(vinyl alcohol) hydrogel layer to provide

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16

Gevrek, Tugce Nihal, Aysun Degirmenci, Rana Sanyal, and Amitav Sanyal. "Multifunctional and Transformable ‘Clickable’ Hydrogel Coatings on Titanium Surfaces: From Protein Immobilization to Cellular Attachment." Polymers 12, no. 6 (2020): 1211. http://dx.doi.org/10.3390/polym12061211.

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Multifunctionalizable hydrogel coatings on titanium interfaces are useful in a wide range of biomedical applications utilizing titanium-based materials. In this study, furan-protected maleimide groups containing multi-clickable biocompatible hydrogel layers are fabricated on a titanium surface. Upon thermal treatment, the masked maleimide groups within the hydrogel are converted to thiol-reactive maleimide groups. The thiol-reactive maleimide group allows facile functionalization of these hydrogels through the thiol-maleimide nucleophilic addition and Diels–Alder cycloaddition reactions, under

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17

Matsumae, Takashi, Hitoshi Umezawa, Yuichi Kurashima, and Hideki Takagi. "(Invited, Digital Presentation) Low-Temperature Direct Bonding of Wide-Bandgap Semiconductor Substrates." ECS Meeting Abstracts MA2023-01, no. 32 (2023): 1830. http://dx.doi.org/10.1149/ma2023-01321830mtgabs.

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Low-temperature direct bonding technique of semiconductor substrates has been developed to integrate dissimilar materials (e.g. Si, Ge, III-V) regardless of lattice and thermal expansion mismatches. Among the direct bonding techniques, a hydrophilic bonding method, which initiates a dehydration reaction between OH-terminated substrates, is commonly used because wafer-scale bonding can be fabricated under atmospheric conditions. Recently, our research group achieved direct bonding of wide-gap materials, including SiC, GaN, β-Ga2O3, and diamond substrates, by using this bonding method. The hydro

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18

Yang, Shuaijun, Yucheng Zhu, Chaoming Wang, Ruidong Li, Jun Hu та Zhong Chen. "Evaluation of Hydrogen Trapping Capability at Interfaces Between Vanadium Carbide and Vanadium Nitride Nanoprecipitates with α-Fe by Density Functional Theory". Coatings 15, № 4 (2025): 466. https://doi.org/10.3390/coatings15040466.

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The interface between dispersed compound nanoprecipitates and metal substrates can act as effective hydrogen traps, impeding hydrogen diffusion and accumulation, thus mitigating the risk of hydrogen embrittlement and hydrogen-induced coating failure. In this study, we considered the precipitation of vanadium carbide (VC) and vanadium nitride (VN) nanoprecipitates on a body-centered cubic Fe (α-Fe) substrate in the Kurdjumov–Sachs (K–S) orientation relationship. To evaluate the stability and hydrogen trapping ability of the interface, we used the first-principles method to calculate the interfa

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19

Le, Hon Nhien, Duy Khanh Nguyen, Minh Triet Dang, et al. "Supramolecular hydration structure of graphene-based hydrogels: density functional theory, green chemistry and interface application." Beilstein Journal of Nanotechnology 16 (June 4, 2025): 806–22. https://doi.org/10.3762/bjnano.16.61.

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Natural hydration shells are discovered to play an essential role in the structure and function of biomolecules (deoxyribonucleic acid, protein, and phospholipid membrane). Hydration layers are also important to the structure and property of artificial graphene-based materials. Our recent works prove that graphene-based hydrogels are supramolecular hydration structures that preserve graphene nanosheets from the restacking through hydrophobic force, van der Waals force, and π–π interaction. In this manuscript, density functional theory and high-performance computing (HPC) are used for modeling

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20

Uchida, Hidetsugu, Motoki Kobayashi, Naoki Hatta, et al. "Analysis of Forward Bias Degradation Reduction in 4H-SiC PiN Diodes on Bonded Substrates." Defect and Diffusion Forum 434 (August 22, 2024): 39–44. http://dx.doi.org/10.4028/p-m70plj.

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Analysis of forward bias degradation reduction of 4H-Silicon Carbide (4H-SiC) PiN diodes on bonded substrates was performed. In the analysis, cathodoluminescence (CL), photoluminescence imaging (PL imaging), and transmission electron microscope (TEM) were used. Under high forward bias stress, the Shockley-type stacking fault (SSF) does not expand into the transferred layer of the bonded substrate, while in the monocrystalline substrate, the SSF expands below the epilayer/substrate interface. The basal plane dislocation (BPD) within the transferred layer does not expand to the SSF. The transfer

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21

Kurimoto, T., Yuichiro Kuroki, Kanji Yasui, Masasuke Takata, and Tadashi Akahane. "Characteristics of SiC Heteroepitaxial Growth on Si by Hot-Mesh Chemical Vapor Deposition." Advanced Materials Research 11-12 (February 2006): 265–68. http://dx.doi.org/10.4028/www.scientific.net/amr.11-12.265.

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The heteroepitaxial growth of 3C-SiC films on Si(100) substrates by the hot-mesh chemical vapor deposition (HM-CVD) method using monomethylsilane as a source gas was investigated. From the results of X-ray diffraction spectra, 3C-SiC crystal was epitaxially grown on Si substrates at substrate temperatures above 750°C. The SiC/Si interface was observed by cross-sectional scanning electron microscopy, and was confirmed to be void-free and smooth. The density of hydrogen radicals supplied to the substrate surface during the growth was also estimated measuring the optical absorbance change of tung

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22

Lee, Jae Kyoo, Hyun Soo Han, Settasit Chaikasetsin, et al. "Condensing water vapor to droplets generates hydrogen peroxide." Proceedings of the National Academy of Sciences 117, no. 49 (2020): 30934–41. http://dx.doi.org/10.1073/pnas.2020158117.

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It was previously shown [J. K. Leeet al.,Proc. Natl. Acad. Sci. U.S.A., 116, 19294–19298 (2019)] that hydrogen peroxide (H2O2) is spontaneously produced in micrometer-sized water droplets (microdroplets), which are generated by atomizing bulk water using nebulization without the application of an external electric field. Here we report that H2O2is spontaneously produced in water microdroplets formed by dropwise condensation of water vapor on low-temperature substrates. Because peroxide formation is induced by a strong electric field formed at the water–air interface of microdroplets, no cataly

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23

Chen, Jiayao, Jing Li, Lirong Xu, Wei Hong, Yuzhao Yang, and Xudong Chen. "The Glass-Transition Temperature of Supported PMMA Thin Films with Hydrogen Bond/Plasmonic Interface." Polymers 11, no. 4 (2019): 601. http://dx.doi.org/10.3390/polym11040601.

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The interfacial effect is one of the significant factors in the glass-transition temperature (Tg) of the polymeric thin film system, competing against the free surface effect. Herein, the Tgs of poly (methyl methacrylate) (PMMA) films with different thicknesses and substrates are studied by fluorescence measurements, focusing on the influence of interfacial effects on the Tgs. The strong interaction between PMMA and quartz substrate leads to increased Tgs with the decreased thickness of the film. The plasmonic silver substrate causes enhanced fluorescence intensity near the interface, resultin

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Rudmann, Linda, Juan S. Ordonez, Hans Zappe, and Thomas Stieglitz. "Hermetic Electrical Feedthroughs Based on the Diffusion of Platinum into Silicon." International Symposium on Microelectronics 2014, no. 1 (2014): 000729–34. http://dx.doi.org/10.4071/isom-wp45.

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Within this paper a novel approach for the development of hermetic electrical feedthroughs is introduced. So far, every vertical feedthrough induces at the feedthroughs' interfaces possible paths for water to leak across the hermetic barrier into the hermetic package. The presented approach is based on the diffusion of platinum into silicon, locally changing the electrical behavior of the substrate due to the induced impurities. This method avoids destroying the bulk material, in this case silicon, preserving the hermetic barrier environment. Different n-type silicon substrates were investigat

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Chin, Che-Lun, Lu-Jan Huang, Zheng-Xian Lu, Wei-Chun Weng, and Ling Chao. "Using the Water Absorption Ability of Dried Hydrogels to Form Hydrogel-Supported Lipid Bilayers." Gels 9, no. 9 (2023): 751. http://dx.doi.org/10.3390/gels9090751.

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The formation of supported lipid bilayers (SLBs) on hydrogels can act as a biocompatible anti-fouling interface. However, generating continuous and mobile SLBs on materials other than conventional glass or mica remains a significant challenge. The interaction between lipid membrane vesicles and a typical hydrogel is usually insufficient to induce membrane vesicle rupture and form a planar lipid membrane. In this study, we demonstrate that the water absorption ability of a dried polyacrylamide (PAAm) hydrogel could serve as a driving force to facilitate the formation of the hydrogel–SLBs. The a

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De Obaldia, Elida, Pablo Tirado, Jesús Alcantar, Jorge Montes, and Orlando Auciello. "Photoluminescence in Raman Scattering: Effects of HfO2 Template Layer on Ultrananocrystalline Diamond (UNCD) Films Grown on Stainless Steel Substrates." KnE Engineering 3, no. 1 (2018): 263. http://dx.doi.org/10.18502/keg.v3i1.1441.

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The growth of polycrystalline diamond films can play an important role in industry if they can be grown on industrially used materials like aluminum (Al) or stainless steel (SS). A critical issue related to the growth of ultrananocrystalline diamond (UNCD) thin films on metals like SS, in a Hydrogen rich environment like the one present during growth of UNCD films, is the diffusion of Hydrogen (H) into the SS substrate, as it has been observed in prior research, which results in hydride formation in the SS that induce brittleness in the SS substrate. Several interface layers have been proposed

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Tanaka, Shingo, Noboru Taguchi, Tomoki Akita, Fuminobu Hori, and Masanori Kohyama. "First-Principles Calculations of Pd/Au(100) Interfaces with Adsorbates." Solid State Phenomena 139 (April 2008): 47–52. http://dx.doi.org/10.4028/www.scientific.net/ssp.139.47.

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Atomic and electronic structures of H-adsorbed Pd overlayers on Au(100) substrates have been studied by first-principles calculations. The geometric strain effects change the electronic structure and local reactivity of the surface. The lattice strained Pd overlayers on Au surfaces have larger adsorption energies for atomic hydrogen than the unstrained Pd slabs. Adsorption energies for several adsorption sites on the models with different numbers of Pd overlayers have been analyzed from the viewpoints of strains and H-Pd and H-substrate interactions.

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Moreau, David, Caroline Chauvet, François Etienne, François P. Rannou, and Laurent Corté. "Hydrogel films and coatings by swelling-induced gelation." Proceedings of the National Academy of Sciences 113, no. 47 (2016): 13295–300. http://dx.doi.org/10.1073/pnas.1609603113.

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Hydrogel films used as membranes or coatings are essential components of devices interfaced with biological systems. Their design is greatly challenged by the need to find mild synthesis and processing conditions that preserve their biocompatibility and the integrity of encapsulated compounds. Here, we report an approach to produce hydrogel films spontaneously in aqueous polymer solutions. This method uses the solvent depletion created at the surface of swelling polymer substrates to induce the gelation of a thin layer of polymer solution. Using a biocompatible polymer that self-assembles at h

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Qu, Jianzhou, Zhou Yu, and Alexander Urban. "The Mechanism of Hydrogen Evolution Reaction at the Buried Interface of Silica-Coated Electrocatalysts." ECS Meeting Abstracts MA2023-01, no. 36 (2023): 2104. http://dx.doi.org/10.1149/ma2023-01362104mtgabs.

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Semipermeable oxide coatings can protect electrocatalysts in harsh environments without reducing the catalytic performance (Labrador, Esposito et al. ACS Catal. 8, 2018, 1767–1778), making them attractive for direct seawater electrolysis. We recently showed that the buried SiO2/Pt interface of silica-coated platinum electrocatalysts is environment-dependent and changes with the pH value of the electrolyte and the electrode potential (Qu and Urban, ACS Appl. Mater. Interfaces 12, 2020, 52125–52135). Here, we discuss the impact of silica membrane coatings on the hydrogen evolution reaction (HER)

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Rai, Amrita, Johann P. Klare, Patrick Y. A. Reinke, et al. "Structural and Biochemical Characterization of a Dye-Decolorizing Peroxidase from Dictyostelium discoideum." International Journal of Molecular Sciences 22, no. 12 (2021): 6265. http://dx.doi.org/10.3390/ijms22126265.

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A novel cytoplasmic dye-decolorizing peroxidase from Dictyostelium discoideum was investigated that oxidizes anthraquinone dyes, lignin model compounds, and general peroxidase substrates such as ABTS efficiently. Unlike related enzymes, an aspartate residue replaces the first glycine of the conserved GXXDG motif in Dictyostelium DyPA. In solution, Dictyostelium DyPA exists as a stable dimer with the side chain of Asp146 contributing to the stabilization of the dimer interface by extending the hydrogen bond network connecting two monomers. To gain mechanistic insights, we solved the Dictyosteli

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Han, Chenhui, Johannes Zenner, Jacob Johny, Nicolas Kaeffer, Alexis Bordet, and Walter Leitner. "Electrocatalytic hydrogenation of alkenes with Pd/carbon nanotubes at an oil–water interface." Nature Catalysis 5, no. 12 (2022): 1110–19. http://dx.doi.org/10.1038/s41929-022-00882-4.

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AbstractElectrocatalytic hydrogenation (ECH) produces high-value chemicals from unsaturated organics using water as a hydrogen source. However, ECH is limited by the low solubility of substrates when operated under aqueous conditions, by electrical losses when performed in organic electrolytes and, in general, by low faradaic efficiency and fastidious work-up. Here, we show that a Pickering emulsion compartmenting organic substrates and aqueous electrolytes in different phases enables efficient ECH at the interface. We designed a construct comprising Pd nanoparticles immobilized on positively

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Pickrell, D. J., W. Zhu, A. R. Badzian, R. E. Newnham, and R. Messier. "Near-interface characterization of diamond films on silica and silicon." Journal of Materials Research 6, no. 6 (1991): 1264–77. http://dx.doi.org/10.1557/jmr.1991.1264.

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The near-interface structure of diamond films grown from a methane and hydrogen gas mixture by microwave plasma enhanced chemical vapor deposition has been studied. Freestanding diamond films grown on both silica and silicon at two different methane concentrations were analyzed by scanning and transmission electron microscopies, electron diffraction, Raman spectroscopy, and secondary ion mass spectroscopy. It was found that the substrate chemistry greatly influenced the nature of the carbon initially deposited on the substrate surface. Diamond formed large flat contact areas on silicon, wherea

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Савин, А. В. "Стационарные состояния односторонне гидрированных листов графена, расположенных на плоских подложках". Физика твердого тела 62, № 3 (2020): 502. http://dx.doi.org/10.21883/ftt.2020.03.49019.560.

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The stationary states of graphene sheets partially hydrogenated on one side and lying on flat substrates are examined. It is shown that such sheets can have stable flat and various scrolled structures. The maximum density of hydrogenation at which the flat structure remains energetically the most favorable depends monotonously on the value of the adhesion of the sheet with the substrate. The stronger is the energy of interaction with the substrate, the higher is the maximum possible density of sheet hydrogenation. The dimensionless maximum density of hydrogenation is p=0.12 for the substrate w

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Hens, Philip, Julian Müller, Erdmann Spiecker, and Peter J. Wellmann. "Defect Structures at the Silicon/3C-SiC Interface." Materials Science Forum 717-720 (May 2012): 423–26. http://dx.doi.org/10.4028/www.scientific.net/msf.717-720.423.

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In all heteroepitaxial systems the interface between substrate and layer is a crucial point. In this work SEM and TEM studies on the interface between silicon substrate and cubic silicon carbide (3C-SiC) layers obtained by chemical vapor deposition (CVD) are presented. A clear connection between process parameters, like the design of substrate cleaning, and the heating ramp, and resulting defect structures at the substrate-layer interface could be found. Whereas the process step of etching in hot hydrogen for oxide removal is crucial for avoiding the generation of closed voids of type 2, the d

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Yi, Bo, Tianjie Li, Boguang Yang, et al. "Surface hydrophobization of hydrogels via interface dynamics-induced network reconfiguration." Nature Communications 15, no. 1 (2024). http://dx.doi.org/10.1038/s41467-023-44646-5.

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AbstractEffective and easy regulation of hydrogel surface properties without changing the overall chemical composition is important for their diverse applications but remains challenging to achieve. We report a generalizable strategy to reconfigure hydrogel surface networks based on hydrogel–substrate interface dynamics for manipulation of hydrogel surface wettability and bioadhesion. We show that the grafting of hydrophobic yet flexible polymeric chains on mold substrates can significantly elevate the content of hydrophobic polymer backbones and reduce the presence of polar groups in hydrogel

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Xu, Dan, Xintong Meng, Siyuan Liu, Jade Poisson, Philipp Vana, and Kai Zhang. "Dehydration regulates structural reorganization of dynamic hydrogels." Nature Communications 15, no. 1 (2024). http://dx.doi.org/10.1038/s41467-024-51219-7.

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AbstractThe dehydration process is widely recognized as a significant phenomenon in nature. Hydrogels, which are important functional materials with high water content and crosslinked networks, encounter the issue of dehydration in their practical applications. Here, we report the distinctive anisotropic dehydration modality of dynamic hydrogels, which is fundamentally different from the more commonly observed isotropic dehydration of covalent hydrogels. Xerogels derived from dynamic hydrogel dehydration will fully cover a curved substrate surface and exhibit hollow structures with internal kn

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Ren, Xingrong, Jiayi Zhang, Fan Yang, Hong Xu, Gaoyang Guo, and Yunbing Wang. "Enzyme‐Immobilized Surface‐Catalyzed Cross‐Linking: Creating Multifunctional Double Network Hydrogel Coatings on Diverse Substrates." Advanced Functional Materials, March 7, 2024. http://dx.doi.org/10.1002/adfm.202312465.

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AbstractHydrogel coatings, with natural tissue‐like mechanical and biological compatibility, demonstrate promise for bulk material applications. However, existing coating methods lack efficiency and control, especially when dealing with complex geometries, diverse substrate materials, and varying sizes. In this study, an enzyme‐immobilized surface‐catalyzed cross‐link approach is proposed for the growth of hydrogel coatings on multiple substrates, accommodating various materials and shapes. The hydrogel coating is formed through the catalytic action of interface‐immobilized enzymes, which indu

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Wan, Xizi, Mingqian Liu, Feilong Zhang, Li-Ping Xu, and Shutao Wang. "Interfacial Chemistry in Functional Hydrogel Coatings." Angewandte Chemie International Edition, March 27, 2025. https://doi.org/10.1002/anie.202425552.

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Functional hydrogel coatings can endow the underlying substrate with excellent surface properties such as anti‐fouling, anti‐fogging, anti‐bacterial, anti‐abrasion, lubrication, and controllable drug delivery, while hardly changing the mechanical properties of the substrate. Through elaborate interface engineering, hydrogel coatings with high interfacial toughness and controllable thickness have been successfully constructed on different substrate surfaces for widespread applications. In this review, we present a comprehensive overview of the current research progress in functional hydrogel co

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Wan, Xizi, Mingqian Liu, Feilong Zhang, Li-Ping Xu, and Shutao Wang. "Interfacial Chemistry in Functional Hydrogel Coatings." Angewandte Chemie, March 27, 2025. https://doi.org/10.1002/ange.202425552.

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Functional hydrogel coatings can endow the underlying substrate with excellent surface properties such as anti‐fouling, anti‐fogging, anti‐bacterial, anti‐abrasion, lubrication, and controllable drug delivery, while hardly changing the mechanical properties of the substrate. Through elaborate interface engineering, hydrogel coatings with high interfacial toughness and controllable thickness have been successfully constructed on different substrate surfaces for widespread applications. In this review, we present a comprehensive overview of the current research progress in functional hydrogel co

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Yu, Han, Qiaohong Xiao, Guilin Qi, et al. "A Hydrogen Bonds-Crosslinked Hydrogels With Self-Healing and Adhesive Properties for Hemostatic." Frontiers in Bioengineering and Biotechnology 10 (April 14, 2022). http://dx.doi.org/10.3389/fbioe.2022.855013.

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Hydrogels with adhesive properties have the potential for rapid haemostasis and wound healing in uncontrolled non-pressurized surface bleeding. Herein, a typical hydrogen bond-crosslinked hydrogel with the above functions was constructed by directly mixing solutions of humic acid (HA) and polyvinylpyrrolidone (PVP), in which the HA worked as a crosslinking agent to form hydrogen bonds with the PVP. By altering the concentration of HA, a cluster of stable and uniform hydrogels were prepared within 10 s. The dynamic and reversible nature of the hydrogen bonds gave the HA/PVP complex (HPC) hydrog

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Wen, Zhixuan, Teng Zhou, Qian Xu, et al. "Functional hydrogel-plastic hybrids inspired by the structural characteristics of mussels." NPG Asia Materials 15, no. 1 (2023). http://dx.doi.org/10.1038/s41427-023-00491-y.

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AbstractShellfish with rigid shells prevent damage to their delicate internal cores, and their soft bonding muscles drive the opening and closing of the shells. This synergism of rigid and soft materials provides shellfish with unique environmental adaptation. Inspired by the structural characteristics of mussels, a riveting layer was introduced into hydrogel-plastic hybrids for bonding hydrogel networks and plastic substrates. The bonding strength of the hydrogel on the polypropylene (PP) substrate was approximately 1.52 MPa, and the interface toughness reached 1450 J m−2. Furthermore, the in

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Perez, Edward, Linda G. Cima, David Miller, and Edward W. Merrill. "Bilayer Composite Hydrogels for Corneal Prostheses." MRS Proceedings 252 (1991). http://dx.doi.org/10.1557/proc-252-375.

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ABSTRACTA two-layer composite material composed of a thin-layer of corneal tissue and a synthetic polyethylene oxide (PEO) hydrogel is described. The material is designed to provide a suitable substrate for corneal epithelial cell growth while maintaining the desirable characteristics of hydrogels, i.e. clarity, flexibility, and ability to allow diffusive flow of nutrients. The gels are synthesized via electron irradiation induced crosslinking of an aqueous solution of PEO onto a thin layer of collagenous tissue substrate. light microscopic studies indicate that the interface between the corne

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Macalester, William, Asme Boussahel, Rafael O. Moreno-Tortolero, et al. "A 3D In-vitro model of the human dentine interface shows long-range osteoinduction from the dentine surface." International Journal of Oral Science 16, no. 1 (2024). http://dx.doi.org/10.1038/s41368-024-00298-9.

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AbstractEmerging regenerative cell therapies for alveolar bone loss have begun to explore the use of cell laden hydrogels for minimally invasive surgery to treat small and spatially complex maxilla-oral defects. However, the oral cavity presents a unique and challenging environment for in vivo bone tissue engineering, exhibiting both hard and soft periodontal tissue as well as acting as key biocenosis for many distinct microbial communities that interact with both the external environment and internal body systems, which will impact on cell fate and subsequent treatment efficacy. Herein, we de

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Dong, Changxin, Andrea I. d'Aquino, Samya Sen, et al. "Water‐Enhancing Gels Exhibiting Heat‐Activated Formation of Silica Aerogels for Protection of Critical Infrastructure During Catastrophic Wildfire." Advanced Materials, August 21, 2024. http://dx.doi.org/10.1002/adma.202407375.

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AbstractA promising strategy to address the pressing challenges with wildfire, particularly in the wildland‐urban interface (WUI), involves developing new approaches for preventing and controlling wildfire within wildlands. Among sprayable fire‐retardant materials, water‐enhancing gels have emerged as exceptionally effective for protecting civil infrastructure. They possess favorable wetting and viscoelastic properties that reduce the likelihood of ignition, maintaining strong adherence to a wide array of surfaces after application. Although current water‐enhancing hydrogels effectively mainta

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Li, Min, Honglang Lu, Menghan Pi, et al. "Water‐Induced Phase Separation for Anti‐Swelling Hydrogel Adhesives in Underwater Soft Electronics." Advanced Science, September 26, 2023. http://dx.doi.org/10.1002/advs.202304780.

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AbstractThe development of hydrogel‐based underwater electronics has gained significant attention due to their flexibility and portability compared to conventional rigid devices. However, common hydrogels face challenges such as swelling and poor underwater adhesion, limiting their practicality in water environments. Here, a water‐induced phase separation strategy to fabricate hydrogels with enhanced anti‐swelling properties and underwater adhesion is presented. By leveraging the contrasting affinity of different polymer chains to water, a phase‐separated structure with rich hydrophobic and di

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Cheng, Junce, and Tingyi Liu. "Heterogeneous micro-architectonic integration of SU-8 and highly entangled polyacrylamide hydrogel to realize cut-resistant soft superhydrophobic surfaces." Journal of Micromechanics and Microengineering, September 3, 2024. http://dx.doi.org/10.1088/1361-6439/ad76b6.

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Abstract This paper presents a novel idea to create cut-resistant superhydrophobic (SHPo) surfaces by integrating an array of SU-8 micropillars on a highly entangled polyacrylamide (PAAm) hydrogel substrate. We begin by demonstrating that this highly entangled PAAm hydrogel exhibits superior resistance to cutting while being as transparent, flexible, and stretchable as other polymeric substrates like polydimethylsiloxane (PDMS). Currently, there are no well-known methods or chemicals to directly integrate SU-8 and PAAm with a covalent bond. To overcome this challenge, we introduce a thin layer

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Yongsunthon, Ruchirej, David E. Baker, Wendy A. Baker, et al. "A Cell's Perspective of its Culture Surface." MRS Proceedings 1060 (2007). http://dx.doi.org/10.1557/proc-1060-ll08-06.

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ABSTRACTAtomic Force Microscopy (AFM) was employed to probe the internal structure of living HepG2/C3A cells grown on various commercially-available substrates. In order to understand the driving mechanisms behind the different cell morphologies, the surface properties of these substrates was characterized with AFM and related techniques. The roughness of a 10μm×10μm region of a series of substrates was determined and found to be independent of both coating and culture media, with the exception of thick hydrogel-like coatings. Probing with functionalized tips could not distinguish relative deg

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Li, Yunfeng, Mengyuan Li, Gongwei Tian, Xuemei Jiang, Dianpeng Qi, and Bai Yang. "An Autonomously Liquefied Hydrogel Adhesive for Programmable Bioelectronic Interface." Angewandte Chemie International Edition, April 21, 2025. https://doi.org/10.1002/anie.202503010.

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Hydrogel adhesives have many important applications in the fields of drug delivery, regenerative medicine, and bioelectronics. The detachment of hydrogel adhesives under the benign conditions is vital to the definitive surgical repair and implanted devices. Although stimuli‐mediated detachment of hydrogel adhesives has been achieved, it is still a grand challenge to develop a transient adhesive with programmable adhesion and autonomous detachment from the substrate, especially the hairy skins. Here, we report a transient hydrogel adhesive driven by antagonistic enzyme reaction networks for pro

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Li, Yunfeng, Mengyuan Li, Gongwei Tian, Xuemei Jiang, Dianpeng Qi, and Bai Yang. "An Autonomously Liquefied Hydrogel Adhesive for Programmable Bioelectronic Interface." Angewandte Chemie, April 21, 2025. https://doi.org/10.1002/ange.202503010.

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Hydrogel adhesives have many important applications in the fields of drug delivery, regenerative medicine, and bioelectronics. The detachment of hydrogel adhesives under the benign conditions is vital to the definitive surgical repair and implanted devices. Although stimuli‐mediated detachment of hydrogel adhesives has been achieved, it is still a grand challenge to develop a transient adhesive with programmable adhesion and autonomous detachment from the substrate, especially the hairy skins. Here, we report a transient hydrogel adhesive driven by antagonistic enzyme reaction networks for pro

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Tang, Jie, Yunlei Zhang, Changmin Qi, et al. "Robust and Lubricating Interface Semi‐Interpenetrating Network on Inert Polymer Substrates Enabled by Subsurface‐Initiated Polymerization." Small, June 20, 2024. http://dx.doi.org/10.1002/smll.202403303.

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AbstractLubricating hydrogel coatings on inert rubber and plastic surfaces significantly reduce friction and wear, thus enhancing material durability and lifespan. However, achieving optimal hydration lubrication typically requires a porous polymer network, which unfortunately reduces their mechanical strength and limits their applicability where robust durability and wear‐resistance are essential. In the research, a hydrogel coating with remarkable wear resistance and surface stability is developed by forming a semi‐interpenetrating polymer network with polymer substrate at the interface. By

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