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Biomimetics
Special Issues
Bioinspired Interfacial Materials
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Bioinspired Interfacial Materials

A special issue of Biomimetics (ISSN 2313-7673). This special issue belongs to the section "Biomimetics of Materials and Structures".

Deadline for manuscript submissions: 20 December 2024 | Viewed by 8776

Special Issue Editors

Dr. Jing Wang

E-Mail Website
Guest Editor
School of Mechanical Engineering and State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai, China
Interests: interfacial science & engineering; bio-inspired materials; ai for materials design; micro- &nanomanufacturing; bionic mechanics; environment and sustainability
Dr. Shikuan Yang

E-Mail Website
Guest Editor
School of Materials Science and Engineering, Zhejiang University, Hangzhou, China
Interests: bio-inspired metallic metasurfaces; surface-enhanced Raman scattering sensors; micro/nanofabrication; quantum dots and optoelectronic devices; biomimetics
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear colleagues,

Bioinspired interfacial materials draw inspiration from nature's ingenious designs and principles to create functional interfaces. These interfaces can occur at various scales, ranging from the molecular to the macroscopic level, and are characterized by their ability to mediate interactions between different materials, systems, or environments. By leveraging nature's efficiency, resilience, and adaptability, these materials have the potential to revolutionize industries such as medicine, energy, electronics, manufacturing, and environmental engineering.

The field of bioinspired interfacial materials encompasses a wide range of disciplines, including materials science, chemistry, physics, biology, engineering, and nanotechnology. It also embraces the study of biological systems, such as the structures found in plants, animals, microorganisms, and ecosystems. The primary motivation behind organizing this Special Issue is to provide a platform for researchers to showcase their innovative work and share their insights in the field of bioinspired interfacial materials. By gathering cutting-edge research articles, reviews, and perspectives, we aim to foster a comprehensive understanding of the field's current progress, challenges, and future directions. Furthermore, this Special Issue serves as a catalyst for collaboration, knowledge exchange, and the establishment of new research networks among experts in this vibrant field.

Therefore, we invite researchers to contribute original research articles, reviews, and perspectives that encompass various aspects of bioinspired interfacial materials. We believe that by collectively exploring the frontiers of bioinspired interfacial materials we can unlock new possibilities and drive transformative advancements that benefit both science and society.

Dr. Jing Wang
Dr. Shikuan Yang
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Biomimetics is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2200 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • bioinspired interfaces
  • bio-adhesives
  • bionic mechanics
  • wetting
  • surface coatings
  • meta-materials
  • biological functions
  • energy conversion and storage
  • water harvesting
  • nanomanufacturing

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Published Papers (3 papers)

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Research

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18 pages, 3209 KiB  
Article
Different Methods to Modify the Hydrophilicity of Titanium Implants with Biomimetic Surface Topography to Induce Variable Responses in Bone Marrow Stromal Cells
by Thomas W. Jacobs, Jonathan T. Dillon, David J. Cohen, Barbara D. Boyan and Zvi Schwartz
Biomimetics 2024, 9(4), 227; https://doi.org/10.3390/biomimetics9040227 - 10 Apr 2024
Cited by 2 | Viewed by 1563
Abstract
The osteoblastic differentiation of bone marrow stromal cells (bMSCs), critical to the osseointegration of titanium implants, is enhanced on titanium surfaces with biomimetic topography, and this is further enhanced when the surfaces are hydrophilic. This is a result of changing the surface free [...] Read more.
The osteoblastic differentiation of bone marrow stromal cells (bMSCs), critical to the osseointegration of titanium implants, is enhanced on titanium surfaces with biomimetic topography, and this is further enhanced when the surfaces are hydrophilic. This is a result of changing the surface free energy to change protein adsorption, improving cell attachment and differentiation, and improving bone-to-implant contact in patients. In this study, we examined different methods of plasma treatment, a well-accepted method of increasing hydrophilicity, and evaluated changes in surface properties as well as the response of bMSCs in vitro. Commercially pure Ti and titanium–aluminum–vanadium (Ti6Al4V) disks were sand-blasted and acid-etched to impart microscale and nanoscale roughness, followed by treatment with various post-processing surface modification methods, including ultraviolet light (UV), dielectric barrier discharge (DBD)-generated plasma, and plasma treatment under an argon or oxygen atmosphere. Surface wettability was based on a sessile water drop measurement of contact angle; the elemental composition was analyzed using XPS, and changes in topography were characterized using scanning electron microscopy (SEM) and confocal imaging. The cell response was evaluated using bMSCs; outcome measures included the production of osteogenic markers, paracrine signaling factors, and immunomodulatory cytokines. All plasma treatments were effective in inducing superhydrophilic surfaces. Small but significant increases in surface roughness were observed following UV, DBD and argon plasma treatment. No other modifications to surface topography were noted. However, the relative composition of Ti, O, and C varied with the treatment method. The cell response to these hydrophilic surfaces depended on the plasma treatment method used. DBD plasma treatment significantly enhanced the osteogenic response of the bMSCs. In contrast, the bMSC response to argon plasma-treated surfaces was varied, with an increase in OPG production but a decrease in OCN production. These results indicate that post-packaging methods that increased hydrophilicity as measured by contact angle did not change the surface free energy in the same way, and accordingly, cells responded differently. Wettability and surface chemistry alone are not enough to declare whether an implant has an improved osteogenic effect and do not fully explain how surface free energy affects cell response. Full article
(This article belongs to the Special Issue Bioinspired Interfacial Materials)
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25 pages, 5653 KiB  
Article
Effect of Indentation Depth on Friction Coefficient in Adhesive Contacts: Experiment and Simulation
by Iakov A. Lyashenko, Thao H. Pham and Valentin L. Popov
Biomimetics 2024, 9(1), 52; https://doi.org/10.3390/biomimetics9010052 - 17 Jan 2024
Cited by 6 | Viewed by 1781
Abstract
The quasi-static regime of friction between a rigid steel indenter and a soft elastomer with high adhesion is studied experimentally. An analysis of the formally calculated dependencies of a friction coefficient on an external load (normal force) shows that the friction coefficient monotonically [...] Read more.
The quasi-static regime of friction between a rigid steel indenter and a soft elastomer with high adhesion is studied experimentally. An analysis of the formally calculated dependencies of a friction coefficient on an external load (normal force) shows that the friction coefficient monotonically decreases with an increase in the load, following a power law relationship. Over the entire range of contact loads, a friction mode is realized in which constant shear stresses are maintained in the tangential contact, which corresponds to the “adhesive” friction mode. In this mode, Amonton’s law is inapplicable, and the friction coefficient loses its original meaning. Some classical works, which show the existence of a transition between “adhesive” and “normal” friction, were analyzed. It is shown that, in fact, there is no such transition. A computer simulation of the indentation process was carried out within the framework of the boundary element method, which confirmed the experimental results. Full article
(This article belongs to the Special Issue Bioinspired Interfacial Materials)
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Review

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26 pages, 5185 KiB  
Review
Bioinspired Stimuli-Responsive Materials for Soft Actuators
by Zhongbao Wang, Yixin Chen, Yuan Ma and Jing Wang
Biomimetics 2024, 9(3), 128; https://doi.org/10.3390/biomimetics9030128 - 21 Feb 2024
Cited by 3 | Viewed by 4444
Abstract
Biological species can walk, swim, fly, jump, and climb with fast response speeds and motion complexity. These remarkable functions are accomplished by means of soft actuation organisms, which are commonly composed of muscle tissue systems. To achieve the creation of their biomimetic artificial [...] Read more.
Biological species can walk, swim, fly, jump, and climb with fast response speeds and motion complexity. These remarkable functions are accomplished by means of soft actuation organisms, which are commonly composed of muscle tissue systems. To achieve the creation of their biomimetic artificial counterparts, various biomimetic stimuli-responsive materials have been synthesized and developed in recent decades. They can respond to various external stimuli in the form of structural or morphological transformations by actively or passively converting input energy into mechanical energy. They are the core element of soft actuators for typical smart devices like soft robots, artificial muscles, intelligent sensors and nanogenerators. Significant progress has been made in the development of bioinspired stimuli-responsive materials. However, these materials have not been comprehensively summarized with specific actuation mechanisms in the literature. In this review, we will discuss recent advances in biomimetic stimuli-responsive materials that are instrumental for soft actuators. Firstly, different stimuli-responsive principles for soft actuators are discussed, including fluidic, electrical, thermal, magnetic, light, and chemical stimuli. We further summarize the state-of-the-art stimuli-responsive materials for soft actuators and explore the advantages and disadvantages of using electroactive polymers, magnetic soft composites, photo-thermal responsive polymers, shape memory alloys and other responsive soft materials. Finally, we provide a critical outlook on the field of stimuli-responsive soft actuators and emphasize the challenges in the process of their implementation to various industries. Full article
(This article belongs to the Special Issue Bioinspired Interfacial Materials)
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