CANDYBOTS: A New Generation of 3D‐Printed Sugar‐Based Transient Small‐Scale Robots

Gervasoni, Simone; Terzopoulou, Anastasia; Franco, Carlos; Veciana, Andrea; Pedrini, Norman; Burri, Jan T.; Marco, Carmela De; Siringil, Erdem; Chen, Xiang‐Zhong; Nelson, Bradley J.; Puigmartí‐Luis, Josep; Pané, Salvador

doi:10.1002/adma.202005652

Cited by 31 publications

(23 citation statements)

References 26 publications

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“…7 (C). Puigmartí, Pané, and co-workers have recently reported on the realization of millimeter-scale magnetic sugar-based helical swimmers by means of selective laser sintering [ 76 ]. Owing to the fast degradability of sugar structures, these devices could be used for rapid interventions in which a fast dissolution of the robot is needed.…”

Section: Propulsion Of Micro- and Nanoscale Robotsmentioning

confidence: 99%

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Powering and Fabrication of Small-Scale Robotics Systems

Wendel‐Garcia

Belce²,

Chen

et al. 2021

Curr Robot Rep

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Purpose of Review The increasing number of contributions in the field of small-scale robotics is significantly associated with the progress in material science and process engineering during the last half century. With the objective of integrating the most optimal materials for the propulsion of these motile micro- and nanosystems, several manufacturing strategies have been adopted or specifically developed. This brief review covers some recent advances in materials and fabrication of small-scale robots with a focus on the materials serving as components for their motion and actuation. Recent Findings Integration of a wealth of materials is now possible in several micro- and nanorobotic designs owing to the advances in micro- and nanofabrication and chemical synthesis. Regarding light-driven swimmers, novel photocatalytic materials and deformable liquid crystal elastomers have been recently reported. Acoustic swimmers are also gaining attention, with several prominent examples of acoustic bubble-based 3D swimmers being recently reported. Magnetic micro- and nanorobots are increasingly investigated for their prospective use in biomedical applications. The adoption of different materials and novel fabrication strategies based on 3D printing, template-assisted electrodeposition, or electrospinning is briefly discussed. Summary A brief review on fabrication and powering of small-scale robotics is presented. First, a concise introduction to the world of small-scale robotics and their propulsion by means of magnetic fields, ultrasound, and light is provided. Recent examples of materials and fabrication methodologies for the realization of these devices follow thereafter.

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Section: Propulsion Of Micro- and Nanoscale Robotsmentioning

confidence: 99%

“…(b) Scheme and (c) manipulation of a pre-magnetized sugar-based magnetic helical robot corkscrewing under a rotating magnetic field of 30 mT at 5 Hz. (Adapted with permission [ 76 ]. Copyright © 2020, WILEY–VCH Verlag GmbH & Co. KGaA, Weinheim.)…”

Section: Propulsion Of Micro- and Nanoscale Robotsmentioning

confidence: 99%

Powering and Fabrication of Small-Scale Robotics Systems

Wendel‐Garcia

Belce²,

Chen

et al. 2021

Curr Robot Rep

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“…With the advantages of their miniaturized size and wireless manipulation ability, microrobots can effectively perform various tasks in limited environments where conventional macro-scale robots could not operate as well [ 6 , 7 ]. Magnetic microrobots actuated by a magnetic navigation system (MNS) have especially drawn a lot of attention for biomedical and biological applications, such as minimally invasive surgery [ 8 , 9 , 10 ], targeted drug and cargo delivery [ 11 , 12 , 13 ], and microfluidic control [ 14 , 15 ]. Unlike other microrobots, such as the ones based on chemical, ultrasound, or biohybrid mechanisms [ 16 , 17 ], the magnetic microrobot’s principle of manipulation is based on an external magnetic field whose generation, elimination, and modulation can be effectively controlled via the control of several input currents of an MNS [ 18 ].…”

Section: Introductionmentioning

confidence: 99%

A Two-Dimensional Manipulation Method for a Magnetic Microrobot with a Large Region of Interest Using a Triad of Electromagnetic Coils

Lee

Jeon

2022

Micromachines

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This paper proposes an effective method to manipulate the 2D motions of a magnetic small-scale robot (microrobot) within a relatively large working area using a triad of electromagnetic coils (TEC). The TEC is a combination of three identical circular coils placed at the vertices of an equilateral triangle. Since it is geometrically compact and requires only three control variables (input currents), the TEC can be effectively used to generate various magnetic fields that can be used to maneuver various functional microrobots. In this paper, we established several equations to calculate the input currents of the TEC required to move a microrobot along a designated pathway effectively and precisely. We also constructed an experimental setup to demonstrate and validate the controlled motions of the microrobot using the proposed method. The results showed that the proposed method can effectively improve the TEC’s practical working area (region of interest) for manipulating the microrobot, which can possibly be applied to biomedical and biological applications, including minimally invasive surgery, targeted drug and cargo delivery, microfluidic control, etc.

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“…In an attempt to expand the boundaries of AM, numerous researchers have focused on developing printable materials 1 – 3 and corresponding techniques for 3D printing 4 – 7 . Consequently developed advanced and sophisticated printable materials and 3D printing techniques have accelerated the utilization of AM in various industries, such as aerospace 8 , 9 , biomedicine 10 – 12 , and the food industry 13 , 14 . Research on metal AM that can facilitate its application to various industrial fields has also been actively conducted 15 – 18 .…”

Section: Introductionmentioning

confidence: 99%

A general fruit acid chelation route for eco-friendly and ambient 3D printing of metals

Cho

Choi

et al. 2022

Nat Commun

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Recent advances in metal additive manufacturing (AM) have provided new opportunities for prompt designs of prototypes and facile personalization of products befitting the fourth industrial revolution. In this regard, its feasibility of becoming a green technology, which is not an inherent aspect of AM, is gaining more interests. A particular interest in adapting and understanding of eco-friendly ingredients can set its important groundworks. Here, we demonstrate a water-based solid-phase binding agent suitable for binder jetting 3D printing of metals. Sodium salts of common fruit acid chelators form stable metal-chelate bridges between metal particles, enabling elaborate 3D printing of metals with improved strengths. Even further reductions in the porosity between the metal particles are possible through post-treatments. A compatibility of this chelation chemistry with variety of metals is also demonstrated. The proposed mechanism for metal 3D printing can open up new avenues for consumer-level personalized 3D printing of metals.

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CANDYBOTS: A New Generation of 3D‐Printed Sugar‐Based Transient Small‐Scale Robots

Abstract: Wireless small-scale robots hold great promise for diagnosis and treatment of certain diseases and/or pathologies in a minimally invasive way. [1] These mobile systems are engineered to

Cited by 31 publications

References 26 publications

Powering and Fabrication of Small-Scale Robotics Systems

Powering and Fabrication of Small-Scale Robotics Systems

A Two-Dimensional Manipulation Method for a Magnetic Microrobot with a Large Region of Interest Using a Triad of Electromagnetic Coils

A general fruit acid chelation route for eco-friendly and ambient 3D printing of metals

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