Spontaneous locomotion of hygrobots under spatial gradient of humidity

Slides:

Advertisements

Similar presentations

Soft robotic device applied to the RV in a pressure overload model of RHF. Soft robotic device applied to the RV in a pressure overload model of RHF. (A.

Advertisements

Comparison of predicted and measured forces and moments.

Basic design concept of human mimetic humanoid.

Three different types of transfer functions with a codomain of [0,1].

Robot surface tension experiments.

Histology results comparing surgical and naïve groups.

Fabrication of bilayer actuator composed of a hygroscopically active layer with aligned nanofibers and an inactive layer. Fabrication of bilayer actuator.

Self-sensing of actuator position.

Velocity of hygrobots. Velocity of hygrobots. (A) The difference between l and lp corresponds to a distance that a hygrobot advances a period. (B) Velocity.

Workspace comparison of Delta robots.

T2-weighted cross-sectional MR imaging of MSP swarms inside SD rats.

Demonstration of aerial-aquatic locomotion and transition.

Ex vivo testing of the soft robotic devices.

Biohybrid structural color hydrogel films with autonomic iridescence displaying. Biohybrid structural color hydrogel films with autonomic iridescence displaying.

Crawler locomotion. Crawler locomotion. (A) Initial and final position of the crawlers after six inflation cycles with V ∈ [0,24] ml. (B) Displacement.

Power-free sterilization of culture plate.

Hygroscopically responsive bilayer structures.

Allometric scaling of select biohybrid and organic devices.

Tukey boxplots overlaid on data points from objective and subjective measures, displaying results from study 1. Tukey boxplots overlaid on data points.

On-demand, NIR light–triggered hyperthermia termination switch for RBC microswimmers. On-demand, NIR light–triggered hyperthermia termination switch for.

Fig. 1 High-resolution printing of liquid metals.

Quasi-static and dynamic trajectories.

Fig. 3 The electrical contact of direct-printed and reconfigured liquid metals. The electrical contact of direct-printed and reconfigured liquid metals.

Cell viability tests. Cell viability tests. SEM images of (A) MC3T3-E1 cells and (B) MSCs on days 1, 3, and 5 of culture. (C) Survival rates of MC3T3-E1.

Experimental characterization of the milliDelta’s quasi-static workspace (yellow) compared with the theoretical workspace (blue) generated by the kinematic.

T2-weighted cross-sectional MR imaging of MSP swarms inside SD rats.

Experimental results for tremor reduction.

Cardiomyocytes cultured on microgroove-patterned structural color hydrogel films. Cardiomyocytes cultured on microgroove-patterned structural color hydrogel.

Microrobots with different cell-carrying capacities under different grid lengths (lg) and burr lengths (lb). Microrobots with different cell-carrying capacities.

Self-sensing of actuator position.

2D motility characterization and external magnetic steering of RBC microswimmers. 2D motility characterization and external magnetic steering of RBC microswimmers.

The applications of the biohybrid structural color hydrogels in a heart-on-a-chip system. The applications of the biohybrid structural color hydrogels.

Brain-computer interfaces.

Fig. 1 Examples of experimental stimuli and behavioral performance.

Magnetic actuation of BMRs.

Untethered kirigami-skinned soft crawlers.

Fig. 2 Ferroelectric domains resolved in WTe2 single crystals.

Soft robotic device applied to the RV in a pressure overload model of RHF. Soft robotic device applied to the RV in a pressure overload model of RHF. (A.

Steady-state performance of the soft robotic device in LHF models.

Results of the performance study experiment: Bending (sample size: n = 5). Results of the performance study experiment: Bending (sample size: n = 5). (A)

Full-frame single image recording the violation of a Bell inequality

Underwater observatory.

Fig. 2 Full-frame images recording the violation of a Bell inequality in four images. Full-frame images recording the violation of a Bell inequality in.

Fluorescence response of actuator.

The two modalities for the multitask condition.

Simulation results of magnetic driving ability in hepatic artery, portal vein, and hepatic vein. Simulation results of magnetic driving ability in hepatic.

Comparison of predicted and measured forces and moments.

Quadcopter equipped with dual-stiffness origami arms.

Fig. 2 2D QWs of different propagation lengths.

Motions of the biohybrid robot powered by the antagonistic pair of skeletal muscle tissues. Motions of the biohybrid robot powered by the antagonistic.

In situ concurrent removal of MRSA bacteria and MRSA-secreting PFTs by RBC-PL-robots. In situ concurrent removal of MRSA bacteria and MRSA-secreting PFTs.

Experimental setup for HIL Bayesian optimization.

Hygrobot: A self-locomotive ratcheted actuator powered by environmental humidity by Beomjune Shin, Jonghyun Ha, Minhee Lee, Keunhwan Park, Gee Ho Park,

Fig. 1 Schematic illustration and atomic-scale rendering of a silica AFM tip sliding up and down a single-layer graphene step edge on an atomically flat.

Actuating properties of Vis light–induced actuation.

Galloping-like gait with the design of a two-legged robot.

Fig. 3 Load dependence of friction force and corresponding COF.

AEGIS autonomous targeting process.

Deformability and stability of RBC microswimmers squeezing through confined spaces smaller than their size. Deformability and stability of RBC microswimmers.

Control of a cell-cultured microrobot in vitro and in vivo.

Hydrogel skin as a lubricating layer.

Characterization of kirigami-skinned soft crawlers.

Response of the actuator to different stimulations.

Multiplexed four- and eight-channel devices for rapid processing

Kinematic and mechanical advantage trade-off study.

Fig. 3 Comparisons of NDVI trends over the globally vegetated areas from 1982 to Comparisons of NDVI trends over the globally vegetated areas from.

Fig. 4 Spatial mapping of the distribution and intensity of industrial fishing catch. Spatial mapping of the distribution and intensity of industrial fishing.

Fig. 4 Single-particle contact angle measurements.

Fig. 2 Supraballs and films from binary SPs.

Onboard sensors enable state feedback and closed-loop control of robotic skins. Onboard sensors enable state feedback and closed-loop control of robotic.

Presentation transcript:

Spontaneous locomotion of hygrobots under spatial gradient of humidity. Spontaneous locomotion of hygrobots under spatial gradient of humidity. (A) Spatial distribution of relative humidity at 23°C near a moist filter paper. Error bars indicate SD. (B) Schematics and experimental images of a hygrobot crawling spontaneously on a moist surface. The angle that the leg makes with the substrate, β, determines the friction coefficient (section S3). (C) Temporal evolution of the position of the hygrobot. Velocity of hygrobots powered by the spatial gradient of humidity as a function of (D) the active layer thickness and (E) the actuator length. Circles and lines correspond to the results of experiment and theory, respectively. Inset of (E) shows the overlapped images of hygrobots of different lengths. Beomjune Shin et al. Sci. Robotics 2018;3:eaar2629 Copyright © 2018 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works