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Biomimetics, Volume 9, Issue 8

August 2024 - 60 articles

Cover Story: The study explores enhancing mandrel-coiled twisted and coiled polymer fibers with a nichrome heater (TCPFLNR) by coating them with a graphene-mesoporous Carbon–Nickel–Polyvinyl Alcohol (PVA) solution. The one-pot synthesis involved graphene, Ni nanoparticles, mesoporous carbon, and PVA. The coated TCPFLNR, after annealing, showed improved thermal conductivity and actuation. Experiments on 60 mm actuators revealed significant improvements in actuation displacement (18% to 36%) and strain (20% to 42%) under various loads with a 2.16 W input. The nanomaterial coating enhances reliability, enabling over 75,000 actuation cycles and reducing power consumption from 6% to 9%. This research paves the way for optimizing electrothermally operated TCP actuators. View this paper
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Articles (60)

  • Article
  • Open Access
2 Citations
2,692 Views
16 Pages

The Function of Horn Ridges for Impact Damping

  • Nayeon Lee,
  • Sungkwang Mun,
  • Kyle L. Johnson and
  • Mark F. Horstemeyer

This study explores the damping effects of ram horn ridges on mechanical impacts resulting from ramming. We measured the amplitudes and frequencies of ridges along the axial (pitch) direction of the ridges of ram horns obtained from eight specimens a...

  • Article
  • Open Access
2 Citations
2,001 Views
17 Pages

Soft Gripping Fingers Made of Multi-Stacked Dielectric Elastomer Actuators with Backbone Strategy

  • Armin Jamali,
  • Robert Knoerlein,
  • Dushyant Bhagwan Mishra,
  • Seyed Alireza Sheikholeslami,
  • Peter Woias and
  • Frank Goldschmidtboeing

Soft grippers, a rapidly growing subfield of soft robotics, utilize compliant and flexible materials capable of conforming to various shapes. This feature enables them to exert gentle yet, if required, strong gripping forces. In this study, we elabor...

  • Article
  • Open Access
1 Citations
2,670 Views
25 Pages

A Bio-Inspired Dopamine Model for Robots with Autonomous Decision-Making

  • Marcos Maroto-Gómez,
  • Javier Burguete-Alventosa,
  • Sofía Álvarez-Arias,
  • María Malfaz and
  • Miguel Ángel Salichs

Decision-making systems allow artificial agents to adapt their behaviours, depending on the information they perceive from the environment and internal processes. Human beings possess unique decision-making capabilities, adapting to current situation...

  • Systematic Review
  • Open Access
13 Citations
4,360 Views
20 Pages

Bone Regeneration Capabilities of Scaffolds Containing Chitosan and Nanometric Hydroxyapatite—Systematic Review Based on In Vivo Examinations

  • Paweł J. Piszko,
  • Aleksandra Piszko,
  • Sylwia Kiryk,
  • Jan Kiryk,
  • Tomasz Horodniczy,
  • Natalia Struzik,
  • Kamila Wiśniewska,
  • Jacek Matys and
  • Maciej Dobrzyński

In this systematic review, the authors aimed to investigate the state of knowledge on in vivo evaluations of chitosan and nanometric hydroxyapatite (nanohydroxyapatite, nHAp) scaffolds for bone-tissue regeneration. In March 2024, an electronic search...

  • Article
  • Open Access
2 Citations
2,053 Views
12 Pages

Apatite Formation on α-Tricalcium Phosphate Modified with Bioresponsive Ceramics in Simulated Body Fluid Containing Alkaline Phosphatase

  • Taishi Yokoi,
  • Shinji Tomita,
  • Jin Nakamura,
  • Ayae Sugawara-Narutaki,
  • Yuko Matsukawa,
  • Masakazu Kawashita and
  • Chikara Ohtsuki

Bioresponsive ceramics, a new concept in ceramic biomaterials, respond to biological molecules or environments, as exemplified by salts composed of calcium ions and phosphate esters (SCPEs). SCPEs have been shown to form apatite in simulated body flu...

  • Article
  • Open Access
4 Citations
3,004 Views
31 Pages

Feature selection (FS) is a significant dimensionality reduction technique in machine learning and data mining that is adept at managing high-dimensional data efficiently and enhancing model performance. Metaheuristic algorithms have become one of th...

  • Article
  • Open Access
1,799 Views
57 Pages

In order to further improve performance of the Slime Mould Algorithm, the Enhanced Multi-Strategy Slime Mould Algorithm (EMSMA) is proposed in this paper. There are three main modifications to SMA. Firstly, a leader covariance learning strategy is pr...

  • Review
  • Open Access
3 Citations
3,226 Views
34 Pages

Within native ECM, Hyaluronan (HA) undergoes remarkable structural remodeling through its binding receptors and proteins called hyaladherins. Hyaladherins contain a group of tandem repeat sequences, such as LINK domains, BxB7 homologous sequences, or...

  • Article
  • Open Access
2 Citations
2,401 Views
21 Pages

Studies on dental implant abutments’ geometric design and material selection offer significant innovations and results. These studies aim to improve the abutments’ functionality and aesthetic performance, minimize microcavities’ for...

  • Article
  • Open Access
3 Citations
2,341 Views
20 Pages

The Impact of Green Physical Crosslinking Methods on the Development of Sericin-Based Biohydrogels for Wound Healing

  • Maria C. Arango,
  • Natalia Jaramillo-Quiceno,
  • José David Badia,
  • Amparo Cháfer,
  • Josep Pasqual Cerisuelo and
  • Catalina Álvarez-López

Silk sericin (SS)–based hydrogels show promise for wound healing due to their biocompatibility, moisture regulation, and cell proliferation properties. However, there is still a need to develop green crosslinking methods to obtain non-toxic, ab...

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Biomimetics - ISSN 2313-7673