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35 Results Found

  • Article
  • Open Access
15 Citations
6,124 Views
13 Pages

20 August 2022

In the last few years, the interest in the use of robots in STEM education has risen. However, their main drawback is the high cost, which makes it almost impossible for schools to have one robot per student. Another drawback is the proprietary natur...

  • Article
  • Open Access
7 Citations
8,362 Views
15 Pages

29 August 2022

This paper contributes to a new design of the three-dimensional printable robotic ball joints capable of creating the controllable stiffness linkage between two robot links through pneumatic actuation. The variable stiffness ball joint consists of a...

  • Review
  • Open Access
34 Citations
9,371 Views
22 Pages

Recent Robots in STEAM Education

  • Magdalini Kalaitzidou and
  • Theodore P. Pachidis

Robotics is increasingly entering the field of education. The tools, methods, and approaches of robotics contribute to the development of all areas of STEAM education, both individually and interdisciplinary. The present work aims to highlight the ro...

  • Article
  • Open Access
7 Citations
3,109 Views
20 Pages

20 December 2023

The features or actuation behaviors of nature’s creatures provide concepts for the development of biomimetic soft bioactuators/robots with stimuli-responsive capabilities, design convenience, and environmental adaptivity in various fields. Mimo...

  • Article
  • Open Access
11 Citations
6,222 Views
13 Pages

Flexible Touch Sensors Made of Two Layers of Printed Conductive Flexible Adhesives

  • Sungwon Seo,
  • Seonggi Kim,
  • Jiyeon Jung,
  • Rujun Ma,
  • Seunghyun Baik and
  • Hyungpil Moon

16 September 2016

Touch sensors are crucial in controlling robotic manipulation when a robot interacts with environmental objects. In this study, multilayer flexible touch sensors in the form of an array were developed. The sensors use ink-type conductive flexible adh...

  • Article
  • Open Access
3 Citations
3,303 Views
11 Pages

Electrical Resistance Response to Strain in 3D-Printed Conductive Thermoplastic Polyurethane (TPU)

  • Axel Riddervold,
  • Ole S. Nesheim,
  • Sindre W. Eikevåg and
  • Martin Steinert

26 April 2024

Additive manufacturing (AM) offers new possibilities in soft robotics as materials can easily be combined in multi-material designs. Proper sensing is essential for the soft actuators to interact with the surroundings successfully. By fabricating sen...

  • Article
  • Open Access
23 Citations
8,388 Views
14 Pages

26 March 2021

Usually, polyhedra are viewed as the underlying constructive cells of packing or tiling in many disciplines, including crystallography, protein folding, viruses structure, building architecture, etc. Here, inspired by the flexible origami polyhedra (...

  • Article
  • Open Access
44 Citations
8,295 Views
17 Pages

12 December 2018

This paper presents a robotic platform, PiBot, which was developed to improve the teaching of robotics with vision to secondary students. Its computational core is the Raspberry Pi 3 controller board, and the greatest novelty of this prototype is the...

  • Article
  • Open Access
16 Citations
5,336 Views
13 Pages

Design of a Single-Material Complex Structure Anthropomorphic Robotic Hand

  • Li Tian,
  • Jianmin Zheng,
  • Nadia Magnenat Thalmann,
  • Hanhui Li,
  • Qifa Wang,
  • Jialin Tao and
  • Yiyu Cai

18 September 2021

In the field of robotic hand design, soft body and anthropomorphic design are two trends with a promising future. Designing soft body anthropomorphic robotic hands with human-like grasping ability, but with a simple and reliable structure, is a chall...

  • Review
  • Open Access
36 Citations
12,494 Views
25 Pages

Review of the Research Progress in Soft Robots

  • Kerun Liu,
  • Weiwei Chen,
  • Weimin Yang,
  • Zhiwei Jiao and
  • Yuan Yu

22 December 2022

The soft robot is a new type of robot with strong adaptability, good pliability, and high flexibility. Today, it is widely used in the fields of bioengineering, disaster rescue, industrial production, medical services, exploration, and surveying. In...

  • Article
  • Open Access
8 Citations
4,519 Views
9 Pages

Printed Soft Sensor with Passivation Layers for the Detection of Object Slippage by a Robotic Gripper

  • Reo Miura,
  • Tomohito Sekine,
  • Yi-Fei Wang,
  • Jinseo Hong,
  • Yushi Watanabe,
  • Keita Ito,
  • Yoshinori Shouji,
  • Yasunori Takeda,
  • Daisuke Kumaki and
  • Shizuo Tokito
  • + 2 authors

8 October 2020

Tactile sensing, particularly the detection of object slippage, is required for skillful object handling by robotic grippers. The real-time measurement and identification of the dynamic shear forces that result from slippage events are crucial for sl...

  • Article
  • Open Access
70 Citations
7,693 Views
12 Pages

Multi-Material 3D Printed Shape Memory Polymer with Tunable Melting and Glass Transition Temperature Activated by Heat or Light

  • Ela Sachyani Keneth,
  • Rama Lieberman,
  • Matthew Rednor,
  • Giulia Scalet,
  • Ferdinando Auricchio and
  • Shlomo Magdassi

23 March 2020

Shape memory polymers are attractive smart materials that have many practical applications and academic interest. Three-dimensional (3D) printable shape memory polymers are of great importance for the fabrication of soft robotic devices due to their...

  • Article
  • Open Access
13 Citations
2,877 Views
19 Pages

15 January 2025

Stimuli-responsive hydrogels hold immense promise for biomedical applications, but conventional gelation processes often struggle to achieve the precision and complexity required for advanced functionalities such as soft robotics, targeted drug deliv...

  • Article
  • Open Access
18 Citations
4,080 Views
12 Pages

Printed Directional Bending Sensor with High Sensitivity and Low Hysteresis for Human Motion Detection and Soft Robotic Perception

  • Yi-Fei Wang,
  • Ayako Yoshida,
  • Yasunori Takeda,
  • Tomohito Sekine,
  • Daisuke Kumaki and
  • Shizuo Tokito

24 May 2023

We present a high-performance flexible bending strain sensor for directional motion detection of human hands and soft robotic grippers. The sensor was fabricated using a printable porous conductive composite composed of polydimethylsiloxane (PDMS) an...

  • Article
  • Open Access
7 Citations
3,524 Views
19 Pages

Displacement Estimation Using 3D-Printed RFID Arrays for Structural Health Monitoring

  • Metin Pekgor,
  • Reza Arablouei,
  • Mostafa Nikzad and
  • Syed Masood

15 November 2022

Radio frequency identification (RFID) tags are small, low-cost, wearable, and wireless sensors that can detect movement in structures, humans, or robots. In this paper, we use passive RFID tags for structural health monitoring by detecting displaceme...

  • Article
  • Open Access
6 Citations
1,824 Views
30 Pages

Innovative Approaches to Material Selection and Testing in Additive Manufacturing

  • Alexandr Fales,
  • Vít Černohlávek,
  • Jan Štěrba,
  • Milan Dian and
  • Marcin Suszyński

2 January 2025

This study focuses on selecting a suitable 3D printer and defining experimental methods to gather the necessary data for determining the optimal filament material for printing components of the VEX GO and VEX IQ robotic kits. The aim is to obtain the...

  • Review
  • Open Access
12 Citations
4,372 Views
28 Pages

28 July 2025

Machine learning is reshaping gel-based additive manufacturing by enabling accelerated material design and predictive process optimization. This review provides a comprehensive overview of recent progress in applying machine learning across gel formu...

  • Article
  • Open Access
89 Citations
26,405 Views
14 Pages

21 June 2017

Beyond printing text on paper, inkjet printing methods have recently been applied to print passive electrical and optical microparts, such as conductors, resistors, solder bumps and polymeric micro lenses. They are also useful to print micro-electro-...

  • Article
  • Open Access
14 Citations
6,036 Views
17 Pages

Studying the durability of materials and structures, including 3D-printed structures, is now a key step in better meeting the challenges of sustainable development and integrating technical and economic aspects from the design phase into the executio...

  • Article
  • Open Access
11 Citations
5,090 Views
11 Pages

31 January 2023

A modular soft actuator with snakeskin-inspired scales that generates an anisotropic friction force is designed and evaluated in this study. The actuator makes it possible to fabricate soft robots that can move on various surfaces in the natural envi...

  • Article
  • Open Access
1,507 Views
15 Pages

Magnetic Thixotropic Fluid for Direct-Ink-Writing 3D Printing: Rheological Study and Printing Performance

  • Zhenkun Li,
  • Tian Liu,
  • Hongchao Cui,
  • Jiahao Dong,
  • Zijian Geng,
  • Chengyao Deng,
  • Shengjie Zhang,
  • Yin Sun and
  • Heng Zhou

Yield stress and thixotropy are critical rheological properties for enabling successful 3D printing of magnetic colloidal systems. However, conventional magnetic colloids, typically composed of a single dispersed phase, exhibit insufficient rheologic...

  • Communication
  • Open Access
4 Citations
2,651 Views
12 Pages

4D-Printed Magnetic Responsive Bilayer Hydrogel

  • Yangyang Li,
  • Yuanyi Li,
  • Jiawei Cao,
  • Peng Luo,
  • Jianpeng Liu,
  • Lina Ma,
  • Guo-Lin Gao and
  • Zaixing Jiang

17 January 2025

Despite its widespread application in targeted drug delivery, soft robotics, and smart screens, magnetic hydrogel still faces challenges from lagging mechanical performance to sluggish response times. In this paper, a methodology of in situ generatio...

  • Article
  • Open Access
17 Citations
4,159 Views
16 Pages

Early-Age Mechanical Properties of 3D-Printed Mortar with Spent Garnet

  • Szymon Skibicki,
  • Patrycja Jakubowska,
  • Maria Kaszyńska,
  • Daniel Sibera,
  • Krzysztof Cendrowski and
  • Marcin Hoffmann

23 December 2021

This study determines the effect of spent garnet as a replacement for natural sand in 3D-printed mortar at early ages. Five mixes with different spent garnet amounts were prepared (0%, 25%, 50%, 75% and 100% by volume). The ratio of binder to aggrega...

  • Article
  • Open Access
9 Citations
4,151 Views
14 Pages

23 April 2023

Three-dimensional (3D) printing has various applications in many fields, such as soft electronics, robotic systems, biomedical implants, and the recycling of thermoplastic composite materials. Three-dimensional printing, which was only previously ava...

  • Review
  • Open Access
2 Citations
1,210 Views
31 Pages

Artificial Intelligence Informed Hydrogel Biomaterials in Additive Manufacturing

  • Zhizhou Zhang,
  • Zach Z. Tao,
  • Ruiling Du,
  • Runxin Huo and
  • Xiangrui Zheng

6 December 2025

Hydrogel additive manufacturing underpins soft tissue models, biointerfaces, and soft robotics. The coupled choices of formulation, rheology, and process conditions limit the progress. This review maps how artificial intelligence links composition to...

  • Article
  • Open Access
29 Citations
4,242 Views
21 Pages

Mitigating Scatter in Mechanical Properties in AISI 410 Fabricated via Arc-Based Additive Manufacturing Process

  • Sougata Roy,
  • Benjamin Shassere,
  • Jake Yoder,
  • Andrzej Nycz,
  • Mark Noakes,
  • Badri K. Narayanan,
  • Luke Meyer,
  • Jonathan Paul and
  • Niyanth Sridharan

29 October 2020

Wire-based metal additive manufacturing utilizes the ability of additive manufacturing to fabricate complex geometries with high deposition rates (above 7 kg/h), thus finding applications in the fabrication of large-scale components, such as stamping...

  • Article
  • Open Access
2 Citations
2,111 Views
12 Pages

8 January 2021

In this work, loess-based materials were designed based on a multicomponent composite materials system for ecofriendly natural three-dimensional (3D) printing involving quick lime, gypsum, and water. The 3D printing process was monitored as a functio...

  • Review
  • Open Access
4 Citations
7,134 Views
17 Pages

12 March 2025

3D Concrete Printing (3DCP) technology is rapidly gaining popularity in the construction industry, particularly for transportation infrastructure such as bridges. Unlike traditional construction methods, this innovative approach eliminates the need f...

  • Article
  • Open Access
3,060 Views
21 Pages

27 July 2023

Glass is made from sand—a finite resource. Hence, there is a need to maintain glass in the industrial cycle as described in the Ellen MacArthur Foundation’s circular-economy diagram. This research project examines the reallocation of mate...

  • Article
  • Open Access
1 Citations
688 Views
19 Pages

Environmental Footprint of 3D-Printed Concrete Using Recycled Materials

  • Claudia Muñoz-Sanguinetti,
  • Mabel Vega-Coloma,
  • Viviana Letelier,
  • Madelyn Marrero,
  • Rodrigo García-Alvarado and
  • Paulina Wegertseder-Martinez

26 December 2025

The construction sector undeniably has an impact on sustainability in its three dimensions: economic, social, and environmental. In this context, 3D concrete printing (3DCP) has emerged over the last decade as an attractive technology for transformin...

  • Review
  • Open Access
666 Views
45 Pages

Advances in 3D Bioprinting: Materials, Processes, and Emerging Applications

  • Subin Antony Jose,
  • Antonia Evtimow and
  • Pradeep L. Menezes

25 February 2026

Three-dimensional (3D) bioprinting has rapidly emerged as a transformative technology at the interface of biomedical engineering and regenerative medicine. By enabling the spatially controlled deposition of living cells, biomaterials, and bioactive m...

  • Article
  • Open Access
58 Citations
7,201 Views
12 Pages

11 April 2019

Despite the tremendous efforts dedicated to developing various wearable piezoresistive sensors with sufficient stretchability and high sensitivity, challenges remain pertaining to fabrication scalability, cost, and efficiency. In this study, a facile...

  • Article
  • Open Access
2 Citations
1,568 Views
31 Pages

Multifunctional 3D-Printable Photocurable Elastomer with Self-Healing Capability Derived from Waste Cooking Oil

  • Pengyu Wang,
  • Jiahui Sun,
  • Mengyu Liu,
  • Chuanyang Tang,
  • Yang Yang,
  • Guanzhi Ding,
  • Qing Liu and
  • Shuoping Chen

18 April 2025

This study presents a sustainable approach to transform waste cooking oil (WCO) into a multifunctional 3D-printable photocurable elastomer with integrated self-healing capabilities. A linear monomer, WCO-based methacrylate fatty acid ethyl ester (WMF...

  • Article
  • Open Access
14 Citations
4,519 Views
19 Pages

Impact of Scala Tympani Geometry on Insertion Forces during Implantation

  • Filip Hrncirik,
  • Iwan V. Roberts,
  • Chloe Swords,
  • Peter J. Christopher,
  • Akil Chhabu,
  • Andrew H. Gee and
  • Manohar L. Bance

10 November 2022

(1) Background: During a cochlear implant insertion, the mechanical trauma can cause residual hearing loss in up to half of implantations. The forces on the cochlea during the insertion can lead to this mechanical trauma but can be highly variable be...

  • Article
  • Open Access
643 Views
24 Pages

TiO2, GO, and TiO2/GO Coatings by APPJ on Waste ABS/PMMA Composite Filaments Filled with Carbon Black, Graphene, and Graphene Foam: Morphology, Wettability, Thermal Stability, and 3D Printability

  • Alejandra Xochitl Maldonado Pérez,
  • Alma Delfina Arenas Flores,
  • José de Jesús Pérez Bueno,
  • Maria Luisa Mendoza López,
  • Yolanda Casados Mexicano,
  • José Luis Reyes Araiza,
  • Alejandro Manzano-Ramírez,
  • Salomón Ramiro Vásquez García,
  • Nelly Flores-Ramírez and
  • Edain Belén Pérez Mendoza
  • + 1 author

9 December 2025

This work presents a multifactorial strategy for reusing waste thermoplastics and generating multifunctional filaments for additive manufacturing. Acrylonitrile–butadiene–styrene (ABS) waste and commercial poly(methyl methacrylate) (PMMA)...