119 Hits in 9.3 sec

Composite Reinforcement Architectures: A Review of Field-Assisted Additive Manufacturing for Polymers

Roy, Tran, Dickens, Schrand
2019 Journal of Composites Science  
electricity, and the production of flexible batteries.  ...  Research has shown the use of such materials in the production of parts exhibiting high strength-to-weight ratio for use in aerospace and automotive fields, sensors for monitoring stress and conducting  ...  [53] reported inks preloaded with stiff magnetized pellets and a magnetic field produced by neodymium magnets were used to achieve alignment.  ... 
doi:10.3390/jcs4010001 fatcat:jh7cdvgnmnf4xmk2a5jb3gytfu

Organic electronics for neuroprosthetics

Marta Airaghi Leccardi, Diego Ghezzi
2020 Healthcare technology letters  
Compared to inorganic materials, organic materials have superior mechanical compliance with the soft tissue, and conjugated polymers also have an advantageous electrochemical transport mechanism at the  ...  Neuroprosthetics aims at restoring impaired or lost neurological and mental functions by exploiting technological advances in implantable and wearable devices.  ...  For instance, liquid crystal polymers (LCPs) are inert polymers composed by rigid aromatic segments connected by flexible linkers, resulting in tunable mechanical properties spanning from tens of GPa to  ... 
doi:10.1049/htl.2019.0108 fatcat:3wcwzneorvcenia2yr3hyyqcue

Soft Robotic Grippers

Jun Shintake, Vito Cacucciolo, Dario Floreano, Herbert Shea
2018 Advanced Materials  
Acknowledgements This work was supported in part by the Swiss National Centre of Competence in Research (NCCR) Robotics, the FLAG ERA RoboCom++ project, and the Hasler Foundation.  ...  Absolute stiffness could be increased by applying higher electric/magnetic fields.  ...  Other ways to achieve controlled stiffness include materials that react to electric and magnetic stimuli and materials in granular form (particle jamming).  ... 
doi:10.1002/adma.201707035 pmid:29736928 fatcat:ysjvdzllnneirolc6hmkxc5k2e

The Role of Soft Robotic Micromachines in the Future of Medical Devices and Personalized Medicine

Lourdes Garcia, Genevieve Kerns, Kaitlin O'Reilley, Omolola Okesanjo, Jacob Lozano, Jairaj Narendran, Conor Broeking, Xiaoxiao Ma, Hannah Thompson, Preston Njapa Njeuha, Drashti Sikligar, Reed Brockstein (+1 others)
2021 Micromachines  
From traditional techniques for robot design to advances in tunable material chemistry, we look broadly at the field for opportunities to advance healthcare solutions in the future.  ...  In this review, we analyze the trajectory of biomedical and engineering approaches to soft robotics for healthcare applications.  ...  Instead, magnetic actuation serves as an umbrella term for methods that use magnetic materials in the form of thin metal films, conductive particles in a flexible substrate, and liquid metals [59] .  ... 
doi:10.3390/mi13010028 pmid:35056193 pmcid:PMC8781893 fatcat:vsp5syfajfev7g7kuo7wtaekwu

Bio-Inspired Soft Grippers Based on Impactive Gripping

Liang Zhou, Lili Ren, You Chen, Shichao Niu, Zhiwu Han, Luquan Ren
2021 Advanced Science  
Recently, inspired by the flexible grasping methods present in nature, increasingly more bio-inspired soft grippers have been fabricated with compliant and soft materials.  ...  According to their types of movement and a classification model inspired by biological "grippers", soft grippers are classified into three types, namely, non-continuum bending-type grippers, continuum  ...  Conversely, thermally activated SMPs are suitable as a stiffness-tunable material.  ... 
doi:10.1002/advs.202002017 pmid:33977041 pmcid:PMC8097330 fatcat:ijmgj46bkza6nhc6dib5qgtryy

Directional liquid dynamics of interfaces with superwettability

Haoyu Dai, Zhichao Dong, Lei Jiang
2020 Science Advances  
To improve controllability, researchers have attempted to use external fields, such as thermal, light, magnetic, and electric fields, to assist or achieve controllable liquid dynamics.  ...  construct directional liquid transport systems for fog collection, 3D printing, energy devices, separation, soft machine, and sensor devices, which are useful for driving liquid transport or motility.  ...  Data and materials availability: All data needed to evaluate the conclusions in the paper are present in the paper and/or the Supplementary Materials.  ... 
doi:10.1126/sciadv.abb5528 pmid:32917681 fatcat:pmodnnrmtzgjnmgkzaz7qzdm5a

Intelligent Soft Surgical Robots for Next‐Generation Minimally Invasive Surgery

Jiaqi Zhu, Liangxiong Lyu, Yi Xu, Huageng Liang, Xiaoping Zhang, Han Ding, Zhigang Wu
2021 Advanced Intelligent Systems  
Acknowledgements The materials based on the work were partly financially supported by National Key R&D Program of China (2017YFB1303100) and National Science Foundation of China (U1613204).  ...  The recently reported hydrogel-metal soft robot controlled by light and magnetic field is a good example.  ...  New Design Concepts Compared with rigid ones, soft and smart materials can achieve larger and flexible changes, e.g., shape, volume, and stiffness.  ... 
doi:10.1002/aisy.202100011 fatcat:3zntsfo5yrajbel5pyfn4yjrcq

Triboelectric and Piezoelectric Nanogenerators for Future Soft Robots and Machines

Min Pan, Chenggang Yuan, Xianrong Liang, Jun Zou, Yan Zhang, Chris Bowen
2020 iScience  
devices, soft robotics, and machines.  ...  This perspective provides an overview of the current state of the art in triboelectric and piezoelectric devices that are used as self-powered sensors and energy harvesters for soft robots and machines  ...  C.Y and X.L thank the support from the China Scholarship Council PhD studentship (201706150102)  ... 
doi:10.1016/j.isci.2020.101682 pmid:33163937 pmcid:PMC7607424 fatcat:7unyr675rbhfljbjxgjdfrmy6y

New Nanofabrication Strategies: Inspired by Biomineralization

Joanna Aizenberg
2010 MRS bulletin  
Next, the liquid precursor (polymer, liquid metal) is poured onto the negative PDMS mold and cured.  ...  out of responsive polymeric materials or from material that is doped with nanoparticles that respond to a magnetic field, an electrical field, or other external stimuli, we can move and assemble these  ... 
doi:10.1557/mrs2010.555 fatcat:ikhhb3vtj5arpcz3zc25kbuo5q

A Review: On Smart Materials Based on Some Polysaccharides; within the Contextual Bigger Data, Insiders, "Improvisation" and Said Artificial Intelligence Trends

Serge Rebouillat, Fernand Pla
2019 Journal of Biomaterials and Nanobiotechnology  
Smart Materials are along with Innovation attributes and Artificial Intelligence among the most used "buzz" words in all media.  ...  smart materials.  ...  There are two essential types of smart composite materials 1) completely tailored man-made composite materials which purpose is to improve or add strength or stiffness, 2) amalgamation of single/composite  ... 
doi:10.4236/jbnb.2019.102004 fatcat:uulaevto4bcbpibrfnayebd2qi

Hydrogel Actuators and Sensors for Biomedical Soft Robots: Brief Overview with Impending Challenges

Hritwick Banerjee, Mohamed Suhail, Hongliang Ren
2018 Biomimetics  
Hydrogels (biocompatible, biodegradable materials that are used in designing soft robots and sensor integration), have come into demand because of their beneficial properties, such as high water content  ...  We illustrate in this review article the different types of biomedical sensors and actuators for which a hydrogel acts as an active primary material, and we elucidate their limitations and the future scope  ...  Thus, stiffness is defined as the rigidity of a material by virtue of which it can resist deformation up to an extent posed by the external load.  ... 
doi:10.3390/biomimetics3030015 pmid:31105237 pmcid:PMC6352708 fatcat:5cwl6tpmajfhrfkc2trqxscc5a

A Critical Review on Polymeric Biomaterials for Biomedical Applications

Cheirmadurai Kalirajan, Amey Dukle, Arputharaj Joseph Nathanael, Tae-Hwan Oh, Geetha Manivasagam
2021 Polymers  
In each part, the applications of the biomaterials in soft and hard tissue engineering with their in vitro and in vivo effects are underlined.  ...  In this review, we summarized the recent notable advancements in the preparation of smart polymeric biomaterials with self-healing and shape memory properties.  ...  In recent years, many efforts have been made to develop stimuli-responsive, PDA-based smart materials [89, 90] .  ... 
doi:10.3390/polym13173015 pmid:34503054 fatcat:yd2wg55g3ram7dgiivtxtyt43y

Active optics with silk

Giulia Guidetti, Yu Wang, Fiorenzo G. Omenetto
2020 Nanophotonics  
Finally, new research directions are envisioned for silk-based optical materials and devices.  ...  Representative silk-based devices whose behavior depends on the silk variability are presented and discussed with a particular focus on structures that display reconfigurable, reversibly tunable and physically  ...  Author contribution: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.  ... 
doi:10.1515/nanoph-2020-0358 fatcat:3y2sszzo3vhctlpjzulmvbin7y

Smart and Biomimetic 3D and 4D Printed Composite Hydrogels: Opportunities for Different Biomedical Applications

Samira Malekmohammadi, Negar Sedghi Aminabad, Amin Sabzi, Amir Zarebkohan, Mehdi Razavi, Massoud Vosough, Mahdi Bodaghi, Hajar Maleki
2021 Biomedicines  
temperature, pH, magnetic field, electromagnetic radiation, and biological molecules.  ...  In recent decades smart hydrogels have opened a new horizon for scientists to fabricate biomimetic customized biomaterials for tissue engineering, cancer therapy, wound dressing, soft robotic actuators  ...  Furthermore, designing an anisotropic composite hydrogel soft N, N-dimethylacrylamidebased matrix, and stiff nano-fibrillated cellulose (NFC) is another smart hydrogel used by changing the moisture of  ... 
doi:10.3390/biomedicines9111537 pmid:34829766 pmcid:PMC8615087 fatcat:rjpqsfxajbhaxc7v7sz6o2pdsm

Progress in Bioinspired Dry and Wet Gradient Materials from Design Principles to Engineering Applications

Xiaoxiao Dong, Hong Zhao, Jiapeng Li, Yu Tian, Hongbo Zeng, Melvin A. Ramos, Travis Shihao Hu, Quan Xu
2020 iScience  
Understanding the convergent and divergent gradient designs in the natural material systems may lead to a new paradigm shift in the development of next-generation high-performance bio-/nano-materials and  ...  Finally, we summarize the latest applications of these synthetic functional gradient materials and structures in robotics, biomedical, energy, and environmental fields, along with their future perspectives  ...  Wang et al. presented a novel slippery film with tunable wettability based on a shape-memory graphene sponge, which is inspired by the pitcher plant.  ... 
doi:10.1016/j.isci.2020.101749 pmid:33241197 pmcid:PMC7672307 fatcat:lw5o6gngzvhrzdpwoe6b2tjmwe
« Previous Showing results 1 — 15 out of 119 results